WO2024021904A1

WO2024021904A1 - Heat exchanger assembly, air conditioner outdoor unit, air conditioner indoor unit, air conditioner and antifrost control method

Info

Publication number: WO2024021904A1
Application number: PCT/CN2023/099199
Authority: WO
Inventors: 唐天宇; 尚秀玲; 陈新厂; 王慧锋; 冯伟松; 章文贵; 周佳辉; 曹睿
Original assignee: 广东美的制冷设备有限公司
Priority date: 2022-07-29
Filing date: 2023-06-08
Publication date: 2024-02-01

Abstract

A heat exchanger assembly (100), an air conditioner outdoor unit, an air conditioner, an antifrost control method and an air conditioner indoor unit. The heat exchanger assembly (100) comprises a heat exchanger (10) and an antifrost structure (20), wherein the antifrost structure (20) is arranged on the heat exchanger (10) and the antifrost structure (20) comprises a plasma generator (3) for generating plasma.

Description

Heat exchanger assembly, air conditioner outdoor unit, air conditioner indoor unit, air conditioner and anti-frost control method

Cross-references to related applications

This application is based on the Chinese patent application with application number 202210910852.9 and the filing date of July 29, 2022, the Chinese patent application with the application number 202310451367.4 and the filing date of April 23, 2023, and the Chinese patent application with the application number 202310451353.2 and the filing date of A Chinese patent application was filed on April 23, 2023, and the priority of the Chinese patent application was requested. The entire content of the Chinese patent application is hereby incorporated into this application as a reference.

Technical field

The present application relates to the technical field of air conditioning equipment, and in particular to a heat exchanger assembly, an air conditioner outdoor unit, an air conditioner indoor unit, an air conditioner and an anti-frost control method.

Background technique

In the related art, when the air conditioner is operating in the heating mode, the outdoor temperature is low, the surface temperature of the heat exchanger of the outdoor unit of the air conditioner is low, and the surface of the heat exchanger is prone to frost. Frosting on the heat exchanger will cause the heating effect of the air conditioner to decrease. If defrost is not performed in time, it will eventually cause the air conditioner to trip due to low voltage protection and shut down.

The existing air conditioner has a defrost mode. When the air conditioner detects frost on the heat exchanger, the air conditioner will switch to the defrost mode, switching the heat exchanger to the condenser, and the heat emitted by the condenser will be The frost on the air conditioner melts away, but in this defrost mode, the air conditioner will not only stop heating the indoor air, but also blow cold air toward the room, causing the air conditioner's indoor heating effect to decrease and causing user discomfort.

Contents of the invention

This application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of this application is to propose a heat exchanger assembly that can effectively prevent water molecules in the air from frosting on the surface of the heat exchanger, and play a defrosting role when frost forms on the surface of the heat exchanger. Moreover, there is no need to change the working mode of the air conditioner to ensure the normal operation of the heat exchanger components, ensure the heating effect of the air conditioner, and improve the overall performance of the air conditioner.

This application also proposes an air-conditioning outdoor unit having the above-mentioned heat exchanger assembly.

This application also proposes an air conditioning indoor unit having the above heat exchanger assembly.

This application also proposes an air conditioner having the above-mentioned air conditioning outdoor unit.

This application also proposes a frost prevention control method for an air conditioner.

A heat exchanger assembly according to an embodiment of the first aspect of the present application includes: a heat exchanger; and an anti-frost structure provided on the heat exchanger, where the anti-frost structure includes a plasma generator for generating plasma.

According to the heat exchanger assembly of the embodiment of the present application, by arranging an anti-frost structure including a plasma generator on the heat exchanger, the plasma generated by the plasma generator can transfer heat to the heat exchanger and increase the temperature of the heat exchanger. , which can effectively prevent water molecules in the air from frosting on the surface of the heat exchanger, and can also play a defrosting role when the surface of the heat exchanger is frosted, and there is no need for the air conditioner to change the working mode to ensure that the heat exchanger The normal operation of the components ensures the heating effect of the air conditioner and improves the overall performance of the air conditioner.

According to some embodiments of the present application, the anti-frost structure is adjacent to an outer surface of the heat exchanger.

According to some embodiments of the present application, the plasma generator has a first discharge end and a second discharge end arranged oppositely, and the first discharge end is closer to the outer surface of the heat exchanger than the second discharge end. On the surface, the first discharge end can discharge into the air to generate plasma.

In some embodiments of the present application, the plasma generator includes an insulating dielectric layer and a first electrode layer and a second electrode layer disposed on opposite sides of the insulating dielectric layer in the thickness direction. The first electrode layer Suitable for grounding, the second electrode layer is suitable for connecting to a high-voltage power supply.

According to some optional embodiments of the present application, the fins of the heat exchanger constitute the first electrode layer.

In some embodiments of the present application, the fins of the heat exchanger closest to the outer surface of the heat exchanger are outer fins, and the outer fins constitute the first electrode layer.

In some embodiments of the present application, the insulating dielectric layer and the second electrode layer are both located at one end of the outer fin close to the outer surface of the heat exchanger.

According to some embodiments of the present application, the insulating dielectric layer is a thermally conductive layer.

According to some embodiments of the present application, the insulating dielectric layer is a dielectric coating coated on the first electrode layer.

According to some embodiments of the present application, the second electrode layer is a printed electrode layer printed on the insulating dielectric layer.

In some embodiments of the present application, the anti-frost structure further includes an insulating protective layer covering the outer surface of the second electrode layer.

In some embodiments of the present application, the insulating protective layer is an insulating coating coated on the outer surface of the second electrode layer.

In some specific embodiments of the present application, the projection of the second electrode layer on the reference surface is located within the projection of the insulating protective layer on the reference surface, and the projection of the insulating protective layer on the reference surface is located on The insulating dielectric layer is within the projection of the reference plane, and the reference plane is a plane perpendicular to the first electrode layer.

In some specific embodiments of the present application, the width of the second electrode layer along the first direction is smaller than the width of the insulating dielectric layer along the first direction, and the width of the second electrode layer along the first direction is smaller than the width of the second electrode layer along the first direction. The two opposite ends in one direction are respectively a first discharge end and a second discharge end. The end face of the first discharge end is the first end face, and the end face of the second discharge end is the second end face. The insulating protective layer covers all the ends. The part of the first end face is a first protective part, the part of the insulating protective layer covering the second end face is a second protective part, and at least one of the first protective part and the second protective part is The thickness is smaller than the first set thickness, so that at least one of the first discharge end and the second discharge end can discharge into the air to generate plasma.

In some specific embodiments of the present application, the first discharge end is closer to the outer surface of the heat exchanger than the second discharge end, and the thickness of the first protective part is smaller than the first setting The thickness is smaller than the thickness of the second protective part.

In some specific embodiments of the present application, the thickness of the second protective part is greater than the second set thickness to block the second discharge end from discharging into the air to generate plasma, and the second set thickness greater than the first set thickness.

In some specific embodiments of the present application, the thickness of the second protective part is smaller than the first set thickness.

In some specific embodiments of the present application, the thickness of the first protective part and the thickness of the second protective part are the same and both are smaller than the first set thickness.

According to some embodiments of the present application, in the thickness direction of the insulating dielectric layer, the surface of the second electrode layer facing away from the insulating dielectric layer is the main surface of the electrode, and the insulating dielectric layer covers the main surface of the electrode. The surface part is the main protective part, and the thickness of the main protective part varies.

According to some embodiments of the present application, the main protection part includes a first protection area and a second protection area, and the thickness of the first protection area is greater than the thickness of the second protection area.

According to some optional embodiments of the present application, the thickness of the first protection area is equal or gradually changes; and/or the thickness of the second protection area is equal or gradually changes.

According to some optional embodiments of the present application, the main protection part further includes a third protection area, and the thickness of the third protection area is no greater than the thickness of the first protection area and no less than the thickness of the second protection area. thickness.

According to some optional embodiments of the present application, the thickness of the third protection zone is gradually changed.

According to some optional embodiments of the present application, the third protection area is connected between the first protection area and the second protection area.

According to some optional embodiments of the present application, the thickness of the third protection area gradually decreases in the direction from the first protection area to the second protection area.

According to some optional embodiments of the present application, a groove is formed on a side of the main protection part away from the second electrode layer, and the bottom wall of the groove constitutes the second protection area. The main protection part The portion located on the outer peripheral side of the groove constitutes the first protection zone.

According to some optional embodiments of the present application, the main protection part further includes a third protection area, the third protection area is connected between the first protection area and the second protection area, and is formed between the first protection area and the second protection area. In the direction from the first protection area to the second protection area, the thickness of the third protection area gradually decreases, and the peripheral wall of the groove constitutes the third protection area.

According to some optional embodiments of the present application, the insulating dielectric layer is in a long strip shape, the second electrode layer is in a long strip shape extending along the length direction of the insulating dielectric layer, and there are multiple grooves, A plurality of the grooves are spaced apart along the length direction of the main protective portion.

According to some optional embodiments of the present application, the thickness of the main protective part gradually increases or decreases in the direction from one side of the main protective part to the other side of the main protective part.

According to some optional embodiments of the present application, the insulating dielectric layer is in a long strip shape, the second electrode layer is in a long strip shape extending along the length direction of the insulating dielectric layer, and the width of the second electrode layer is Less than the width of the insulating dielectric layer, the two opposite end surfaces in the width direction of the second electrode layer are respectively the first end surface and the second end surface, and the part of the insulating protective layer covering the first end surface is the third end surface. A protective part, the part of the insulating protective layer covering the second end surface is a second protective part, and the thickness of the first protective part and the second protective part is greater than the minimum thickness of the main protective part.

According to some optional embodiments of the present application, the fins of the heat exchanger constitute the first electrode layer, the insulating dielectric layer is a long strip extending along the length direction of the fins, and the second electrode The layer is in the shape of a strip extending along the length direction of the insulating dielectric layer.

According to some optional embodiments of the present application, the fins of the heat exchanger constitute the first electrode layer, and the insulating dielectric layer, the second electrode layer and the insulating protective layer are provided on the fins. the air inlet end.

According to some embodiments of the present application, the anti-frost structure includes an anti-frost module. The anti-frost module is provided on the outer surface of the heat exchanger. The anti-frost module includes a dielectric unit and a second electrode unit. A dielectric unit is located between the first electrode unit and the second electrode unit to form a plasma generator. The first electrode unit is suitable for grounding, and the second electrode unit is suitable for connecting to a high-voltage power supply.

According to some optional embodiments of the present application, the media unit is formed in a plate shape, a side surface of the media unit facing away from the heat exchanger is a mounting surface, and the second electrode unit is disposed on the mounting surface. surface electrode layer.

According to some optional embodiments of the present application, the second electrode unit is a printed electrode layer printed on the mounting surface.

According to some optional embodiments of the present application, the dielectric unit is an integrally formed structure; and/or the second electrode unit is an integrally formed structure.

According to some optional embodiments of the present application, the heat exchanger has an air inlet side and an air outlet side arranged oppositely, the anti-frost module is provided on the air inlet side or the air outlet side, and the anti-frost module forms There is ventilation structure.

According to some optional embodiments of the present application, the anti-frost module covers the entire air inlet side or air outlet side of the heat exchanger.

According to some optional embodiments of the present application, the media unit is formed in a plate shape, a side surface of the media unit facing away from the heat exchanger is a mounting surface, and the second electrode unit is disposed on the mounting surface. surface electrode layer;

Wherein, the ventilation structure includes a plurality of spaced ventilation holes formed on the dielectric unit, and at least part of the second electrode unit surrounds the outer peripheral side of the ventilation holes.

According to some optional embodiments of the present application, the second electrode unit includes a plurality of electrode rings, the number of the electrode rings is the same as the number of the ventilation holes and corresponds one to one, and each of the electrode rings is surrounded by a corresponding On the outer peripheral side of the ventilation hole, all the electrode rings are connected as one.

According to some optional embodiments of the present application, the electrode ring is a circular ring.

According to some optional embodiments of the present application, a plurality of the ventilation holes are arranged in an array.

According to some optional embodiments of the present application, a plurality of the ventilation holes are arranged at intervals along the first direction, the ventilation holes extend in a long strip shape along the second direction, the first direction intersects the second direction, and are perpendicular to the thickness direction of the media unit.

According to some optional embodiments of the present application, a plurality of the fins of the heat exchanger are arranged along the first direction, air flow channels are defined between adjacent fins, and the ventilation holes are connected to the The air flow channels are arranged relatively.

According to some optional embodiments of the present application, the other sides of the heat exchanger except the air inlet side and the air outlet side are the non-wind side, and the anti-frost module has a use state and a non-use state;

Wherein, in the use state, the anti-frost module covers the air inlet side or the air outlet side; in the non-use state, the anti-frost module can be stored on the non-wind side.

According to some optional embodiments of the present application, the anti-frost module is a flexible structure, and the non-wind side is provided with a reel. The anti-frost module has a fixed end and a free end arranged oppositely, and the fixed end is connected to the free end. The scrolls are connected;

Wherein, in the non-use state, the anti-frost module is wound on the reel.

According to some optional embodiments of the present application, the anti-frost module is detachably connected to the heat exchanger.

An air conditioning outdoor unit according to the second embodiment of the present application includes; an outdoor casing formed with an outdoor air inlet and an outdoor air outlet; and a heat exchanger assembly according to the above-mentioned first embodiment of the present application, the heat exchanger assembly It is located in the outdoor casing; the outdoor fan is located in the outdoor casing.

According to the air conditioning outdoor unit of the embodiment of the present application, the side of the heat exchanger opposite to the outdoor fan is the facing side, and the anti-frost structure is located on the other side of the heat exchanger except the facing side. side.

According to the air-conditioning outdoor unit according to the embodiment of the present application, the above-mentioned heat exchanger assembly can prevent the surface of the heat exchanger from frosting, ensuring the normal operation of the heat exchanger, ensuring the normal operation of the air-conditioning outdoor unit, and ensuring the normal operation of the air conditioner. .

According to some embodiments of the present application, the anti-frost structure is located on a side of the heat exchanger away from the outdoor fan.

According to some embodiments of the present application, the air-conditioning outdoor unit further includes: a temperature sensor and a dew point sensor provided on the outer surface of the heat exchanger, where the temperature on the outer surface of the heat exchanger is not greater than the current corresponding dew point temperature. When, the plasma generator works; when the outer surface temperature of the heat exchanger is greater than the current corresponding dew point temperature, the plasma generator stops working.

An air conditioner according to a third embodiment of the present application includes: an air conditioner outdoor unit according to the above-mentioned second embodiment of the present application.

According to the air conditioner according to the embodiment of the present application, the above-mentioned air conditioner outdoor unit can ensure the normal operation of the air conditioner outdoor unit and ensure the normal operation of the air conditioner.

An air-conditioning indoor unit according to the fourth embodiment of the present application includes: the heat exchanger assembly according to the above-mentioned first embodiment of the present application.

According to the air-conditioning indoor unit according to the embodiment of the present application, through the above-mentioned heat exchanger assembly, the surface of the heat exchanger can be prevented from frosting, ensuring the normal operation of the heat exchanger, ensuring the normal operation of the air-conditioning indoor unit, and ensuring the normal operation of the air conditioner. .

According to the anti-frost control method of an air conditioner according to the fifth embodiment of the present application, the air conditioner is the air conditioner according to the above-mentioned third embodiment of the present application. The anti-frost control method includes:

Detect the outer surface temperature and dew point temperature of the heat exchanger;

After confirming that the outer surface temperature of the heat exchanger is not greater than the current corresponding dew point temperature, the plasma generator is turned on and runs for a first preset time;

After confirming that the outer surface temperature of the heat exchanger is greater than the current corresponding dew point temperature, the plasma generator stops operating for a second preset time period, and the second preset time period is less than the first preset time period.

According to the anti-frost control method of the air conditioner according to the embodiment of the present application, the intermittent operation of the plasma generator can be realized while ensuring that the heat exchanger does not frost, and the continuous operation of the plasma generator can be prevented from causing energy consumption of the air conditioner. If it is too large, it may cause a large amount of heat accumulation in the frost-proof structure and cause a fire, which will reduce the energy consumption of the air conditioner, ensure the safety of the air conditioner, and improve the overall performance of the air conditioner.

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

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

Figure 1 is a partial schematic diagram of a heat exchanger assembly according to some embodiments of the present application;

Figure 2 is a partial cross-sectional view of the heat exchanger assembly in Figure 1;

Figure 3 is a partial cross-sectional view of a heat exchanger assembly according to other embodiments of the present application;

Figure 4 is a schematic diagram of a heat exchanger assembly according to further embodiments of the present application;

Figure 5 is a cross-sectional view of the heat exchanger assembly in Figure 5;

Figure 6 is a perspective view of a partial structure of the anti-frost structure in Figure 5;

Figure 7 is an exploded view of part of the frost-proof structure in Figure 7;

Figure 8 is a front view of a partial structure of the anti-frost structure in Figure 7;

Figure 9 is a cross-sectional view along A-A in Figure 9;

Figure 10 is a cross-sectional view along B-B in Figure 9;

Figure 11 is a cross-sectional view along C-C in Figure 9;

Figure 12 is a schematic diagram of a heat exchanger assembly according to further embodiments of the present application;

Figure 13 is a schematic diagram of the anti-frost module in Figure 13;

Figure 14 is a schematic diagram of a heat exchanger assembly according to some embodiments of the present application;

Figure 15 is a schematic diagram of the anti-frost module in Figure 15;

Figure 16 is a flow chart of an anti-frost control method for an air conditioner according to some embodiments of the present application.

Reference signs:

100. Heat exchanger components;

10. Heat exchanger;

1. Heat exchanger body; 2. Fins; 21. Outer fins; 12. First electrode unit;

20. Frost-proof structure; 200. Frost-proof module; 21. Media unit; 22. Ventilation hole; 23. Installation surface; 24. Second electrode unit; 25. Electrode ring; 26. Connection end;

3. Plasma generator; 31. Insulating dielectric layer; 32. First electrode layer; 33. Second electrode layer; 331. First discharge end; 332. Second discharge end; 333. Main surface of electrode; 34. One end face; 35. Second end face;

4. Insulation protection layer; 40. Main protection part; 41. First protection part; 42. Second protection part; 43. Groove; 44. First protection area; 45. Second protection area; 46. Third protection district.

Detailed ways

The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as limiting the present application.

The heat exchanger assembly 100 according to the embodiment of the present application is described below with reference to the accompanying drawings.

Referring to Figures 1-3, according to the heat exchanger assembly 100 of the first embodiment of the present application, the heat exchanger assembly 100 can be used in an air-conditioning outdoor unit. The air-conditioning outdoor unit includes an outdoor casing, a heat exchanger assembly 100 and an outdoor fan. , the outdoor casing is formed with an outdoor air inlet and an outdoor air outlet; the heat exchanger assembly 100 is located in the outdoor casing, the outdoor fan is located in the outdoor casing, and the side of the heat exchanger 10 opposite to the outdoor fan is the opposite wind side. (Refer to the inside of the heat exchanger 10 in FIGS. 1 to 3 ), the heat exchanger 10 includes a heat exchange tube 1 and a plurality of fins 2 .

When the outdoor unit of the air conditioner is working, the outdoor fan is suitable for driving outdoor air to flow into the outdoor casing from the outdoor air inlet, driving the outdoor air flowing into the outdoor casing to the heat exchanger 10 and flowing through the heat exchange tube 1 and the plurality of fins 2, and The heat exchanger 10 performs heat exchange and blows the heat-exchanged air out from the outdoor air outlet. Multiple fins 2 can increase the contact area between the heat exchanger 10 and the air and improve the heat exchange efficiency.

It should be noted that in the description of this application, the meaning of “plurality” is two or more.

The heat exchanger assembly 100 includes a heat exchanger 10 and an anti-frost structure 20 . The anti-frost structure 20 is provided on the heat exchanger 10 . The anti-frost structure 20 includes a plasma generator 3 for generating plasma. When the plasma generator 3 is working, the plasma generator 3 can discharge into the air and ionize the air near the plasma generator 3 into plasma.

When the plasma generator 3 generates plasma, a microcurrent will pass through the electrode layer of the plasma generator 3. The microcurrent passing through the electrode layer of the plasma generator 3 will produce a thermal effect, causing the temperature of the electrode layer of the plasma generator 3 to rise. high, so that the air around the anti-frost structure 20 can be heated. Moreover, when the plasma generator 3 generates plasma, the electrons in the plasma can collide with other particles in the air to produce an ionization effect, heating the air around the anti-frost structure 20 and forming a higher temperature near the anti-frost structure 20 Plasma gas mass. When the plasma generator 3 generates plasma, the plasma accumulation will form a certain ion wind and produce an aerodynamic effect, causing the plasma air mass to flow between the heat exchanger 10 and the anti-frost structure 20 .

Taking the heat exchanger 10 installed in the outdoor unit of the air conditioner as an example, when the surface of the heat exchanger 10 is not frosted, the moisture in the air near the anti-frost structure 20 can be evaporated, and the plasma air mass can transfer heat to the heat exchanger. The heat exchanger 10 increases the temperature of the heat exchanger 10, thereby effectively preventing water molecules in the air from condensing into frost on the surface of the heat exchanger 10, ensuring the normal operation of the heat exchanger 10, ensuring the normal operation of the air conditioner outdoor unit, and ensuring The heating effect of the air conditioner improves the overall performance of the air conditioner.

Taking the heat exchanger 10 installed in the outdoor unit of the air conditioner as an example, when frost forms on the surface of the heat exchanger 10, the higher-temperature plasma air mass can also transfer heat to the frost on the surface of the heat exchanger 10, causing the heat exchanger to freeze. The frost on the surface of the heat exchanger 10 melts, thereby defrosting, ensuring the normal operation of the heat exchanger 10, ensuring the normal operation of the outdoor unit of the air conditioner, ensuring the heating effect of the air conditioner, and improving the overall performance of the air conditioner.

Compared with the air conditioner with defrost mode in the prior art, there is no need for the air conditioner to change the working mode, which allows the air conditioner to continue heating the indoor air and reduces the decrease in heating effect caused by the air conditioner changing the working mode. This prevents the air conditioner from blowing cold air into the room when it changes its working mode and causes user discomfort, avoids the noise generated when the air conditioner changes its working mode, improves the heating effect of the air conditioner, and improves the overall performance of the air conditioner.

According to the heat exchanger assembly 100 of the embodiment of the present application, by disposing the anti-frost structure 20 including the plasma generator 3 on the heat exchanger 10, the plasma generated by the plasma generator 3 can transfer heat to the heat exchanger 10, Increasing the temperature of the heat exchanger 10 can effectively prevent water molecules in the air from frosting on the surface of the heat exchanger 10. It can also defrost when the surface of the heat exchanger 10 frosts, and no air conditioning is needed. The heat exchanger changes the working mode to ensure the normal operation of the heat exchanger assembly 100, ensure the heating effect of the air conditioner, and improve the overall performance of the air conditioner.

Referring to Figures 1-3, according to some embodiments of the present application, the anti-frost structure 20 is adjacent to the outer surface of the heat exchanger 10. In winter, when the air conditioner is heating, frost will first form on the outer surface of the heat exchanger 10. It then spreads along the heat exchanger 10 towards the inner surface of the heat exchanger 10 . The anti-frost structure 20 is disposed adjacent to the outer surface of the heat exchanger 10 , and the distance between the plasma generator 3 and the outer surface of the heat exchanger 10 is small.

When the plasma generator 3 is working, the higher temperature plasma air mass near the plasma heat exchanger 10 can quickly transfer heat to the outer surface of the heat exchanger 10, reducing the loss of heat during the transfer process, making the heat exchanger The outer surface of the heat exchanger 10 can have a higher temperature, thereby effectively preventing the outer surface of the heat exchanger 10 from frosting, preventing the heat exchanger 10 from frosting and causing a decrease in the working efficiency of the heat exchanger 10, and improving the work of the anti-frost structure 20 efficiency, improve the anti-frost and defrosting capabilities of the anti-frost structure 20, reduce the energy consumption of the anti-frost structure 20, improve the overall performance of the outdoor unit of the air conditioner, and improve the overall performance of the air conditioner.

There are multiple anti-frost structures 20 arranged along the outer surface of the heat exchanger 10. When multiple anti-frost structures 20 are working, more plasma air masses can be generated near the outer surface of the heat exchanger 10, which can better The outdoor air with lower temperature and higher humidity in the external environment is prevented from contacting the heat exchanger 10, thereby more effectively preventing the heat exchanger 10 from frosting.

Referring to Figures 1-3, according to some embodiments of the present application, the plasma generator 3 has a first discharge end 331 and a second discharge end 332. The first discharge end 331 and the second discharge end 332 are arranged oppositely. The end 331 is closer to the outer surface of the heat exchanger 10 than the second discharge end 332, and the first discharge end 331 can discharge into the air to generate plasma.

When the plasma generator 3 is working, the first discharge end 331 can discharge into the air, ionize some particles in the air into plasma, heat the air around the first discharge end 331, and form a plasma around the first discharge end 331. A higher temperature plasma gas mass.

Since the first discharge end 331 is adjacent to the outer surface of the heat exchanger 10 and the distance between the first discharge end 331 and the outer surface of the heat exchanger 10 is small, the higher temperature plasma gas mass near the plasma heat exchanger 10 can be Quickly transfer heat to the outer surface of the heat exchanger 10, reducing heat loss during the transfer process, so that the outer surface of the heat exchanger 10 can have a higher temperature, thereby effectively preventing the outer surface of the heat exchanger 10 from forming. Frost prevents the heat exchanger 10 from frosting and causing the work efficiency of the heat exchanger 10 to decrease, improves the work efficiency of the anti-frost structure 20, improves the anti-frost and defrosting capabilities of the anti-frost structure 20, reduces the energy consumption of the anti-frost structure 20, and improves Improve the overall performance of the air conditioner outdoor unit and improve the overall performance of the air conditioner.

The higher temperature plasma air mass can be located near the outer surface of the heat exchanger 10, which can prevent frosting when the lower temperature and higher humidity outdoor air in the external environment comes into contact with the heat exchanger 10, thereby more effectively preventing the heat exchanger from forming. Heater 10 is frosted.

Referring to Figures 1-3, in some embodiments of the present application, the plasma generator 3 includes an insulating dielectric layer 31, a first electrode layer 32 and a second electrode layer 33. The first electrode layer 32 and the second electrode layer 33 Disposed on opposite sides of the insulating dielectric layer 31 in the thickness direction, the first electrode layer 32 is suitable for grounding, and the second electrode layer 33 is suitable for connecting to a high-voltage power supply.

By providing the insulating dielectric layer 31, the plasma generator 3 can generate plasma in the form of dielectric barrier discharge, which can limit the growth of the discharge current, improve the uniformity of the discharge, effectively prevent the discharge from transforming into arc or spark discharge, and improve the plasma The use of the plasma generator 3 is safe, and the reliability of the plasma generator 3 is improved, thereby improving the reliability of the outdoor unit of the air conditioner, improving the reliability of the air conditioner, and improving the overall performance of the air conditioner.

Optionally, the fins 2 of the heat exchanger 10 constitute the first electrode layer 32 .

By using the fins 2 of the heat exchanger 10 to form the first electrode layer 32 of the plasma generator 3, the components in the heat exchanger assembly 100 can be fully utilized, the layout is reasonable, the structure is compact, and the production of the heat exchanger assembly 100 can be reduced. cost. Since the plasma generator 3 is connected to a high-voltage power supply and the first electrode layer 32 is grounded, the electrical safety of the plasma generator 3 can be effectively ensured, the reliability of the plasma generator 3 and the reliability of the frost-proof structure 20 can be ensured. , thereby improving the reliability of the air conditioner outdoor unit, improving the reliability of the air conditioner, and improving the overall performance of the air conditioner.

By using the fins 2 of the heat exchanger 10 to form the first electrode layer 32 of the plasma generator 3, when the plasma generator 3 is working, the plasma gas mass with a higher temperature formed around the plasma generator 3 can be quickly The heat is transferred to the fins 2 of the heat exchanger 10, reducing the loss of heat during the transfer process, so that the fins 2 of the heat exchanger 10 can have a higher temperature, thereby effectively preventing the fins of the heat exchanger 10 from 2. Frosting, to prevent frosting on the outer surface of the heat exchanger 10, to prevent the heat exchanger 10 from frosting and causing the heat exchanger 10 to reduce its working efficiency, to improve the working efficiency of the anti-frost structure 20, and to improve the anti-frost of the anti-frost structure 20 The ability to prevent frost, reduce the energy consumption of the anti-frost structure 20, improve the overall performance of the outdoor unit of the air conditioner, and improve the overall performance of the air conditioner.

When the plasma generator 3 is working, a microcurrent will pass through the first electrode layer 32. The fins 2 of the heat exchanger 10 are set as the first electrode layer 32 of the plasma generator 3. A certain amount of microcurrent will be generated through the fins 2. Due to the thermal effect, the temperature of the fins 2 increases, which can further increase the temperature of the fins 2, effectively prevent the fins 2 of the heat exchanger 10 from frosting, prevent the outer surface of the heat exchanger 10 from frosting, and prevent heat exchange. The frost on the heat exchanger 10 will cause the working efficiency of the heat exchanger 10 to decrease, thereby further improving the working efficiency of the anti-frost structure 20, improving the anti-frost and defrosting capabilities of the anti-frost structure 20, reducing the energy consumption of the anti-frost structure 20, and improving the air conditioning outdoor performance. improve the overall performance of the air conditioner.

Referring to FIGS. 1-3 , in some embodiments of the present application, the fins 2 of the heat exchanger 10 closest to the outer surface of the heat exchanger 10 are outer fins 21 , and the outer fins 21 constitute the first electrode layer 32 . The outer fins 21 of the heat exchanger 10 are located at the outermost side of the heat exchanger 10. In winter, when the air conditioner is heating, frost is easily formed on the surface of the outer fins 21 of the heat exchanger 10, and then frost is formed along the outer fins 21 toward the exchanger. Heater 10 spreads internally.

The outer fin 21 is set as the first electrode layer 32. When the plasma generator 3 is working, a higher temperature plasma air mass will be formed near the outer fin 21. The higher temperature plasma air mass can quickly transfer heat. to the outer fins 21, reducing the loss of heat during the transfer process, so that the outer fins 21 can have a higher temperature, and the higher-temperature plasma air masses can also be distributed near the outer surface of the outer fins 21, which can prevent the external environment from being Frost forms when the outdoor air with lower temperature and higher humidity comes into contact with the outer fins 21, thereby effectively preventing the outer fins 21 from frosting, preventing the heat exchange tube 1 from frosting, and preventing the heat exchanger 10 from frosting. The working efficiency of the heat exchanger 10 is reduced, the working efficiency of the anti-frost structure 20 is improved, the anti-frost and defrosting capabilities of the anti-frost structure 20 are improved, the energy consumption of the anti-frost structure 20 is reduced, the overall performance of the outdoor unit of the air conditioner is improved, and the efficiency of the air conditioner is improved. Overall performance.

Referring to FIGS. 1-3 , in some embodiments of the present application, the insulating dielectric layer 31 and the second electrode layer are both located at one end of the outer fin 21 close to the outer surface of the heat exchanger 10 . In this way, the outer surface of the heat exchanger 10 can be heated more reliably, and the outer surface of the heat exchanger 10 can be more reliably separated from the outside air, thereby more effectively preventing the outer surface of the heat exchanger 10 from frosting. , prevent the heat exchanger 10 from frosting and causing the work efficiency of the heat exchanger 10 to decrease, improve the work efficiency of the anti-frost structure 20 , improve the anti-frost and defrost capabilities of the anti-frost structure 20 , reduce the energy consumption of the anti-frost structure 20 , and improve air conditioning The overall performance of the outdoor unit improves the overall performance of the air conditioner.

Referring to Figures 1-3, according to some embodiments of the present application, the insulating dielectric layer 31 is a thermally conductive layer. For example, the insulating dielectric layer 31 can be a high thermal conductivity and heat dissipation nanocomposite insulating material. For example, the insulating dielectric layer 31 can be an alumina ceramic layer. The insulating dielectric layer 31 may be an aluminum nitride ceramic layer. The ionization process of the plasma generator 3 occurs on the surface of the insulating dielectric layer 31 , and a higher-temperature plasma gas mass is formed between the insulating dielectric layer 31 and the second electrode layer 33 . The insulating dielectric layer 31 is set as a thermal conductive layer, and the plasma The body air mass can transfer heat to the outer fins 21 through the insulating dielectric layer 31, reducing heat loss during the transfer process, improving the working efficiency of the frost-proof structure 20, reducing the energy consumption of the frost-proof structure 20, and ensuring that the heat exchanger 10 work efficiency, improve the overall performance of the air conditioner outdoor unit, and improve the overall performance of the air conditioner.

Referring to FIGS. 1-3 , according to some embodiments of the present application, the insulating dielectric layer 31 is a dielectric coating coated on the first electrode layer 32 . By applying the dielectric coating on the first electrode layer 32 , the insulating dielectric layer 31 and the first electrode layer 32 can be closely adhered to each other to prevent the existence between the first electrode layer 32 and the insulating dielectric layer 31 . The gap prevents the plasma generator 3 from generating plasma through the discharge form of bulk dielectric barrier discharge, so that the plasma generator 3 can completely generate plasma through the discharge form of surface dielectric barrier discharge.

When the air near the outer end of the second electrode layer 33 is ionized, the plasma generator 3 produces an aerodynamic effect, and the plasma at the outer end of the second electrode layer 33 can move toward the outer side of the fin 2 to form an ion wind. , the direction of the ion wind is inclined away from the first electrode layer 32 along the direction from the inside to the outside.

When the outdoor fan of the air conditioner outdoor unit blows outdoor air to the end of the second electrode layer 33 near the outside, the ion wind can change the flow direction of the outdoor air, reduce the contact between the outdoor air and the outer surface of the fin 2, or avoid outdoor air leakage. The air comes into contact with the outer surface of the fin 2, causing the higher temperature plasma air mass to be distributed near the outer surface of the heat exchanger 10, thereby more effectively preventing the outer surface of the fin 2 from frosting and preventing the heat exchanger 10 from forming. frost.

Referring to FIGS. 1-3 , according to some embodiments of the present application, the second electrode layer 33 is a printed electrode layer printed on the insulating dielectric layer 31 . The second electrode layer 33 is printed on the insulating dielectric layer 31 by printing, so that the insulating dielectric layer 31 and the first electrode layer 32 can be closely attached to each other to prevent the existence between the second electrode layer 33 and the insulating dielectric layer 31. The gap prevents the plasma generator 3 from generating plasma through the discharge form of bulk dielectric barrier discharge, so that the plasma generator 3 can completely generate plasma through the discharge form of surface dielectric barrier discharge, increases the wind force of the ion wind, and improves the plasma The working efficiency of the generator 3 improves the anti-frost performance of the anti-frost structure 20 .

Referring to FIGS. 1-3 , in some embodiments of the present application, the anti-frost structure 20 further includes an insulating protective layer 4 , and the insulating protective layer 4 covers the outer surface of the second electrode layer 33 . This can prevent the high-voltage second electrode layer 33 from being exposed to the air, ensure the electrical safety of the plasma generator 3, ensure the electrical safety of the anti-frost structure 20, ensure the safety performance of the outdoor unit of the air conditioner, and ensure the safety performance of the air conditioner. .

Referring to FIGS. 1-3 , in some embodiments of the present application, the insulating protective layer 4 is an insulating coating coated on the outer surface of the second electrode layer 33 . This can make the insulating protective layer 4 and the second electrode layer 33 closely fit together, prevent the gap between the second electrode layer 33 and the insulating protective layer 4, and prevent the plasma generator 3 from ionizing the second electrode layer 33 and the insulation. The air between the protective layers 4 causes the insulating protective layer 4 to rupture, effectively ensuring the electrical safety of the plasma generator 3, ensuring the electrical safety of the frost-proof structure 20, ensuring the safety performance of the outdoor unit of the air conditioner, and ensuring the safety of the air conditioner. Safety performance.

The insulating protective layer 4 can be a thermally conductive layer. For example, the insulating protective layer 4 can be a high thermal conductivity and heat dissipation nanocomposite insulating material. For example, the insulating protective layer 4 can be an alumina ceramic layer, and the insulating protective layer 4 can be an aluminum nitride ceramic layer. In this way, the insulating protective layer 4 can have high thermal conductivity, prevent the surface of the insulating protective layer 4 from frosting, and improve the overall performance of the anti-frost structure 20 .

Referring to Figures 1-3, in some specific embodiments of the present application, the projection of the second electrode layer 33 on the reference surface is located within the projection of the insulating protective layer 4 on the reference surface, and the projection of the insulating protective layer 4 on the reference surface is located within The insulating dielectric layer 31 is within the projection of the reference plane, and the reference plane is a plane perpendicular to the first electrode layer 32 . This can prevent the second electrode layer 33 from being exposed to the air, so that the insulating dielectric layer 31 can completely separate the first electrode layer 32 and the second electrode layer 33, improve the electrical safety of the plasma generator 3, and ensure a frost-proof structure. The electrical safety of 20% ensures the safety performance of the air conditioner outdoor unit and the safety performance of the air conditioner.

Referring to FIGS. 1-3 , in some specific embodiments of the present application, the width of the second electrode layer 33 along the first direction (refer to the inner and outer directions in the drawings) is smaller than the width of the insulating dielectric layer 31 along the first direction. , the opposite ends of the second electrode layer 33 along the first direction are respectively the first discharge end 331 and the second discharge end 332. The end face of the first discharge end 331 is the first end face, and the end face of the second discharge end 332 is the first end face. Two end faces.

The part of the insulating protective layer 4 covering the first end surface is the first protective part 41, and the part of the insulating protective layer 4 covering the second end surface is the second protective part 42. At least one of the first protective part 41 and the second protective part 42 is The thickness of one (refer to the dimensions in the inner and outer directions in Figures 1 to 3) is smaller than the first set thickness D1, so that at least one of the first discharge end 331 and the second discharge end 332 can discharge into the air to Generate plasma.

When both the first protective part 41 and the second protective part 42 are smaller than the first set thickness D1, the first discharge end 331 and the second discharge end 332 can discharge into the air to generate plasma, and can prevent the insulating protective layer 4 from being hit. Wear it to ensure the electrical safety of the plasma generator 3. Setting the thickness of at least one of the first protection part 41 and the second protection part 42 to be less than the first set thickness D1 can ensure the safety function of the first discharge end 331 and the second discharge end 332 while realizing the protection function. At least one of them can discharge into the air to generate plasma, ensuring the normal use of the plasma generator 3 and ensuring that the anti-frost structure 20 can work normally.

According to the distance between the first electrode layer 32 and the second electrode layer 33 (ie, the thickness D2 of the insulating dielectric layer 31), and the potential difference between the first electrode layer 32 and the second electrode layer 33 (ie, the plasma generator 3 output voltage), the maximum discharge length L1 that the first discharge terminal 331 and the second discharge terminal 332 can discharge into the air along the first direction can be calculated. According to the dielectric constant of the material of the insulating protective layer 4 and the potential difference between the first electrode layer 32 and the second electrode layer 33, the critical thickness L2 for breakdown of the first protective part 41 and the second protective part 42 can be calculated. .

The output voltage of the plasma generator 3 and the thickness D2 of the insulating dielectric layer 31 are constant, and the first set thickness D1 is smaller than the maximum discharge length L1 that the first discharge end 331 and the second discharge end 332 can discharge into the air along the first direction. , the first set thickness D1 is greater than the critical thickness L2 for breakdown of the first protective part 41 and the second protective part 42 .

For example, the first set thickness D1 may be slightly larger than the critical thickness L2, so that the first discharge end 331 and the second discharge end 332 have sufficient discharge length, so that the first discharge end 331 and the second discharge end 332 generate more of plasma, thereby improving the working efficiency of the plasma generator 3, rapidly heating the fins 2, and improving the anti-frost effect of the anti-frost structure 20.

Referring to Figures 1-3, in some specific embodiments of the present application, the first discharge end 331 is closer to the outer surface of the heat exchanger 10 than the second discharge end 332, and the thickness D3 of the first protection portion 41 is smaller than the first discharge end 331. The thickness D1 is set, and the thickness D3 of the first protective part 41 is smaller than the thickness D4 of the second protective part 42 . This ensures that the first discharge end 331 discharges into the air, causing the first discharge end 331 to generate plasma and heat the fins 2 near the first discharge end 331, so that the outer surface of the heat exchanger 10 has a higher temperature and prevents exchange of heat. Frosting on the outer surface of the heat exchanger 10 prevents frosting on the inside of the heat exchanger 10 so that the heat exchanger 10 can work normally and ensure the working efficiency of the heat exchanger 10 .

When the thickness D4 of the second protective part 42 is less than the discharge length L1, the discharge length that the second discharge end 332 can discharge into the air is less than the discharge length that the first discharge end 331 can discharge into the air, which can make the plasma The discharge is concentrated at the first discharge end 331 , thereby heating the fins 2 near the first end more quickly, thereby improving the working efficiency of the anti-frost structure 20 .

When the thickness D4 of the second protective part 42 is greater than the maximum discharge length L1, the second discharge end 332 does not discharge, and the plasma generator 3 can only discharge at the first discharge end 331, realizing the unidirectional discharge mode of the first discharge end 331. , can make the discharge of the ion generator 3 more concentrated, can increase the temperature of the plasma generated near the first discharge end 331, increase the temperature of the plasma gas mass, so that the outer surface of the heat exchanger 10 can have a higher temperature, The outer surface of the heat exchanger 10 is more effectively isolated from the external environment, preventing outdoor air with lower temperature and higher humidity in the external environment from contacting the outer surface of the heat exchanger 10, and improving the frost resistance of the anti-frost structure 20 Effect.

Referring to Figures 1-3, in some specific embodiments of the present application, the thickness D4 of the second protective portion 42 is greater than the second set thickness D5 to block the second discharge end 332 from discharging into the air to generate plasma. The second set thickness D5 is greater than the first set thickness D1. When the output voltage of the plasma generator 3 and the thickness D2 of the insulating dielectric layer 31 are constant, the second set thickness D1 is greater than the maximum discharge length that the first discharge end 331 and the second discharge end 332 can discharge into the air along the first direction. L1. In this way, the plasma generator 3 can only discharge at the first discharge end 331, realizing the unidirectional discharge mode of the first discharge end 331, improving energy utilization and reducing energy consumption.

Referring to FIGS. 1-3 , in some specific embodiments of the present application, the thickness of the second protective portion 42 is less than the first set thickness. When the plasma generator 3 is working, the second discharge end 332 can also discharge into the air to generate plasma, and the plasma generator 3 is in a bidirectional discharge mode. At this time, the direction of the ion wind formed near the second end may be inclined in a direction away from the first electrode layer 32 along the direction from outside to inside.

For example, when the outdoor fan of the air conditioner outdoor unit blows outdoor air to the second discharge end 332 of the second electrode layer 33, the ion wind formed near the second discharge end 332 can change the flow direction of the outdoor air. Since the first discharge end 331 The ion wind formed nearby can also change the flow direction of the outdoor air. Since the plasma generator 3 discharges in two directions, the thickness of the plasma air mass generated by the plasma generator 3 near the outer surface of the heat exchanger 10 can be larger, which can further The probability of frost formation due to contact between outdoor low-temperature and high-humidity air and the outer surface of the heat exchanger 10 is reduced, thereby effectively frosting the outer surface of the heat exchanger 10 and improving the anti-frost effect of the anti-frost structure 20 .

Referring to FIGS. 1-3 , in some specific embodiments of the present application, the thickness of the first protective part 41 and the thickness of the second protective part 42 are the same, and the thickness of the first protective part 41 and the thickness of the second protective part 42 are the same. The thicknesses are all smaller than the first set thickness. When the plasma generator 3 is working, the first discharge end 331 and the second discharge end 332 can both discharge into the air to generate plasma, and the first discharge end 331 and the second discharge end 332 can ionize the same air, so that the first discharge end The heat of the plasma gas masses near the end 331 and the second discharge end 332 is approximately the same, so that the fins 2 are evenly heated and frost is prevented from forming on the surface of the fins 2 .

The following describes a heat exchanger assembly 100 according to some specific embodiments of the present invention with reference to FIGS. 1-2 .

Referring to Figures 1-2, in this embodiment, the heat exchanger assembly 100 includes a heat exchanger 10 and an anti-frost structure 20. The anti-frost structure 20 is provided on the heat exchanger 10. The anti-frost structure 20 includes an anti-frost structure for generating plasma. Plasma generator 3. The anti-frost structure 20 is adjacent to the outer surface of the heat exchanger 10,

The plasma generator 3 includes an insulating dielectric layer 31, a first electrode layer 32 and a second electrode layer 33. The first electrode layer 32 and the second electrode layer 33 are provided on opposite sides of the insulating dielectric layer 31 in the thickness direction. The heat exchanger The fins 2 of 10 constitute a first electrode layer 32, the first electrode layer 32 is suitable for grounding, and the second electrode layer 33 is suitable for connecting to a high-voltage power supply.

The insulating dielectric layer 31 is a thermally conductive layer. For example, the insulating dielectric layer 31 can be an alumina ceramic layer. The insulating dielectric layer 31 is a dielectric coating coated on the first electrode layer 32 . The second electrode layer 33 is a printed electrode layer printed on the insulating dielectric layer 31 .

For example, the thickness of the second electrode layer 33 in the direction from the first electrode layer 32 to the second electrode layer 33 may be 0.02 mm, and the thickness D2 of the insulating dielectric layer 31 may be 0.1mm, which can make the entire anti-frost structure 20 take up less space, make the anti-frost structure 20 more compact, and reduce the impact of the anti-frost structure 20 on the heat exchange efficiency of the heat exchanger 10 and outdoor air. When the air conditioner is cooling, it ensures the cooling effect of the air conditioner and improves the overall performance of the air conditioner.

The fins 2 of the heat exchanger 10 closest to the outer surface of the heat exchanger 10 are outer fins 21 , and the outer fins 21 constitute the first electrode layer 32 . The insulating dielectric layer 31 and the electrode layer are both located at one end of the outer fin 21 close to the outer surface of the heat exchanger 10 .

The anti-frost structure 20 also includes an insulating protective layer 4, which covers the outer surface of the second electrode layer 33. The insulating protective layer 4 is an insulating coating coated on the outer surface of the second electrode layer 33. The insulating protective layer 4 4 may be a thermal conductive layer. For example, the insulating protective layer 4 may be a high thermal conductivity and heat dissipation nanocomposite insulating material. For example, the insulating protective layer 4 may be an alumina ceramic layer, and the insulating protective layer 4 may be an aluminum nitride ceramic layer.

The projection of the second electrode layer 33 on the reference surface is located within the projection of the insulating protective layer 4 on the reference surface, and the projection of the insulating protective layer 4 on the reference surface is located within the projection of the insulating dielectric layer 31 on the reference surface. The reference surface is perpendicular to the first The plane of the electrode layer 32 .

The width of the second electrode layer 33 along the first direction (refer to the inner and outer directions in FIGS. 1 to 3 ) is smaller than the width of the insulating dielectric layer 31 along the first direction. The opposite width of the second electrode layer 33 along the first direction The two ends are respectively a first discharge end 331 and a second discharge end 332. The end face of the first discharge end 331 is the first end face, and the end face of the second discharge end 332 is the second end face.

The part of the insulating protective layer 4 covering the first end surface is the first protective part 41, and the part of the insulating protective layer 4 covering the second end surface is the second protective part 42. At least one of the first protective part 41 and the second protective part 42 is The thickness of one (refer to the dimensions in the inner and outer directions in Figures 1 to 3) is smaller than the first set thickness D1, so that at least one of the first discharge end 331 and the second discharge end 332 can discharge into the air to Generate plasma. For example, the first set thickness D1 may be slightly larger than the critical thickness L2,

The first discharge end 331 is closer to the outer surface of the heat exchanger 10 than the second discharge end 332. The thickness D3 of the first protection part 41 is less than the first set thickness D1, and the thickness D3 of the first protection part 41 is less than the second protection part. The thickness of the portion 42 is D4. The thickness D4 of the second protective portion 42 is greater than the second set thickness D5 to block the second discharge end 332 from discharging into the air to generate plasma. The second set thickness D5 is greater than the first set thickness D1.

The anti-frost structure 20 of this embodiment can utilize the ionization effect, aerodynamic effect and thermal effect generated when the plasma generator 3 generates plasma to achieve anti-frost and defrosting effects on the heat exchanger, with high energy utilization rate and frost defrosting effect. good. For comparison with the existing heat exchanger assembly, the ambient temperature was set to -4°C and the humidity was 85%. The existing heat exchanger has frost on the surface in about 5 minutes, but the heat exchanger in this embodiment has no frost on the surface after working for 4 hours.

As shown in Figures 4-11, according to some embodiments of the present application, the heat exchanger includes a heat exchanger 10 and a frost-proof structure 20. The anti-frost structure 20 is provided on the heat exchanger 10 . The anti-frost structure 20 includes a plasma generator 3 for generating plasma. The plasma generator 3 includes an insulating dielectric layer 31 and two opposite sides in the thickness direction of the insulating dielectric layer 31 . There are a first electrode layer 32 and a second electrode layer 33 on the side, the first electrode layer 32 is suitable for grounding, and the second electrode layer 33 is suitable for connecting to a high-voltage power supply.

The anti-frost structure 20 further includes an insulating protective layer 4 covering the outer surface of the second electrode layer 33 . In the thickness direction of the insulating dielectric layer 31 , a portion of the second electrode layer 33 away from the insulating dielectric layer 31 The surface is the main surface of the electrode 333, and the part of the insulating protective layer 4 covering the main surface 333 of the electrode is the main protective part 40, and the thickness of the main protective part 40 varies.

The anti-frost structure 20 includes a plasma generator 3 . The plasma generator 3 includes an insulating dielectric layer 31 and a first electrode layer 32 and a second electrode layer 33 provided on opposite sides of the insulating dielectric layer 31 in the thickness direction. When the plasma generator 3 generates plasma, a microcurrent will pass through the electrode layer of the plasma generator 3. The microcurrent passing through the electrode layer of the plasma generator 3 will produce a thermal effect, causing the temperature of the electrode layer of the plasma generator 3 to rise. high, so that the air around the anti-frost structure 20 can be heated. Moreover, when the plasma generator 3 generates plasma, the electrons in the plasma can collide with other particles in the air to produce an ionization effect, heating the air around the anti-frost structure 20 and forming a higher temperature near the anti-frost structure 20 Plasma gas mass. When the plasma generator 3 generates plasma, the plasma accumulation will form a certain ion wind and produce an aerodynamic effect, causing the plasma air mass to flow between the heat exchanger 10 and the anti-frost structure 20 .

By providing the insulating dielectric layer 31, the plasma generator 3 can generate plasma in the form of dielectric barrier discharge, which can limit the growth of the discharge current, improve the uniformity of the discharge, effectively prevent the discharge from transforming into arc or spark discharge, and due to the plasma The plasma generator 3 is connected to a high-voltage power supply and the first electrode layer 32 is grounded, which can effectively ensure the electrical safety of the plasma generator 3, ensure the reliability of the plasma generator 3, and improve the safety of the plasma generator 3. , improve the reliability of the plasma generator 3.

Compared with the air conditioner with defrost mode in the prior art, this setting does not require the air conditioner to change the working mode, allowing the air conditioner to continue heating the indoor air and reducing the decrease in heating effect caused by the air conditioner changing the working mode. , avoid the air conditioner changing the working mode to blow cold air into the room and causing user discomfort, avoid the noise generated when the air conditioner changes the working mode, improve the heating effect of the air conditioner, and improve the overall performance of the air conditioner. It has been verified that in the non-stop mode of the air conditioner, the module can quickly remove the frost layer on the surface of fin 2 within 2 to 5 seconds after being turned on once. At the same time, under a simulated frosting environment, it will take about ten minutes for frost to appear on the surface of the conventional heat exchanger 10, and it will take 30 to 40 minutes for the surface of the heat exchanger 10 to undergo one plasma defrost in this embodiment. Only then can it be frosted again.

According to the distance between the first electrode layer 32 and the second electrode layer 33 (ie, the thickness of the insulating dielectric layer 31 ), and the potential difference between the first electrode layer 32 and the second electrode layer 33 (ie, the thickness of the plasma generator 3 operating voltage), the maximum discharge length of the second electrode layer 33 discharging into the air can be calculated. The operating voltage of the plasma generator 3 is different, the operating power of the plasma generator 3 is also different, and the maximum discharge length of the second electrode layer 33 discharged into the air is also different. The anti-frost structure 20 includes an insulating protective layer 4. The insulating protective layer 4 covers the main surface 333 of the electrode as a main protective part 40. The thickness of the main protective part 40 varies. By adjusting the operating voltage of the plasma generator 3, Changing the operating power of the plasma generator 3 can change the maximum discharge length of the second electrode layer 33 discharging into the air, thereby controlling the position and area of plasma generated by the second electrode layer 33 through the insulating protective layer 4 .

When the operating voltage of the plasma generator 3 is small, the operating power of the plasma generator 3 is also small, and the maximum discharge length of the second electrode layer 33 into the air is also short. The second electrode layer 33 can pass through the main protection part. The smaller thickness of 40 discharges electricity into the air. For example, when the frost on the surface of the heat exchanger 10 is light, the operating voltage of the plasma generator 3 is set to be smaller, thereby reducing the operating power of the plasma generator 3, and the second electrode layer 33 can pass through The smaller thickness of the main protection part 40 is discharged into the air to generate plasma. The higher temperature plasma air mass can transfer heat to the surface of the heat exchanger 10 and melt the frost on the surface of the heat exchanger 10. The smaller The operating power can play a role in defrosting and reduce the energy consumption of the anti-frost structure 20 .

For example, when the surface of the heat exchanger 10 is not frosted and the operating voltage of the plasma generator 3 is small, the second electrode layer 33 discharges into the air through the smaller thickness of the main protective part 40 . The plasma can evaporate the moisture in the air near the anti-frost structure 20, and the plasma air mass can transfer heat to the heat exchanger 10, increasing the temperature of the heat exchanger 10, thereby effectively preventing water molecules in the air from The surface of the heat exchanger 10 condenses into frost, ensuring the normal operation of the heat exchanger 10 .

When the operating voltage of the plasma generator 3 is large, the operating power of the plasma generator 3 is also large, and the maximum discharge of the second electrode layer 33 into the air is The electrical length is also longer, and the second electrode layer 33 can discharge to the air through the smaller and larger thickness locations of the main protective portion 40 . For example, when the surface of the heat exchanger 10 is heavily frosted, the operating power of the plasma generator 3 can be increased so that the second electrode layer 33 can pass through the smaller and thicker locations of the main protection portion 40 Discharging into the air generates plasma, which increases the area where the second electrode layer 33 generates plasma through the main protective part 40 , more plasma is generated, and the higher-temperature plasma air mass can transfer heat to the heat exchanger 10 The frost on the surface melts the frost on the surface of the heat exchanger 10, thereby defrosting, which can improve the working efficiency of the anti-frost structure 20 and ensure the normal operation of the heat exchanger 10.

By setting the main protection part 40 to have different thicknesses, the operating voltage of the plasma generator 3 can be controlled according to the frosting condition of the heat exchanger 10, and the operating power of the plasma generator 3 can be changed, thereby controlling the third The position and area of the plasma generated by the two electrode layers 33 through the insulating protective layer 4 can effectively prevent water molecules in the air from frosting on the surface of the heat exchanger 10. When frosting occurs on the surface of the heat exchanger 10, it can also be determined according to the frost formation. The operating power of the plasma generator 3 is adjusted according to the frost condition, thereby improving the anti-frost and defrosting efficiency of the anti-frost structure 20 and ensuring the normal operation of the heat exchanger 10 .

According to the heat exchanger assembly 100 of the embodiment of the present application, by arranging the anti-frost structure 20 including the plasma generator on the heat exchanger 10, water molecules in the air can be effectively prevented from frosting on the surface of the heat exchanger 10. When the surface of the heat exchanger 10 is frosted, it has a defrosting effect, and there is no need for the air conditioner to change the working mode, ensuring the normal operation of the heat exchanger assembly 100, ensuring the heating effect of the air conditioner, and improving the overall performance of the air conditioner; and The anti-frost structure 20 includes an insulating protective layer 4 covering the outer surface of the second electrode layer 33. By setting the main protective portion 40 of the insulating protective layer 4 to have different thicknesses, the operating power of the plasma generator 3 can be adjusted. By controlling the position and area of plasma generated by the second electrode layer 33 through the insulating protective layer 4, when the surface of the heat exchanger 10 is frosted, the operating power of the plasma generator 3 can be adjusted according to the frosting conditions, thereby adjusting the defrosting structure. The defrosting power can reduce the energy consumption of the anti-frost structure 20 while meeting the defrosting requirements.

According to some embodiments of the present application, referring to FIGS. 6-11 , the main protection part 40 includes a first protection area 44 and a second protection area 45 , and the thickness of the first protection area 44 is greater than the thickness of the second protection area 45 .

The thickness of the second protection area 45 is set to be smaller than the thickness of the first protection area 44. When the operating voltage of the plasma generator 3 is small, the operating power of the plasma generator 3 is also small, and the maximum voltage of the second electrode layer 33 is The discharge length is greater than the thickness of the second protection area 45 and less than the thickness of the first protection area 44 , and the second electrode layer 33 can only discharge into the air through the second protection area 45 to generate plasma. For example, when the frost on the surface of the heat exchanger 10 is light, the operating power of the plasma generator 3 is set to be small, and the second electrode layer 33 can only discharge into the air through the second protection zone 45 to generate plasma. The frost on the surface of the heat exchanger 10 can be melted, thereby reducing the energy consumption of the anti-frost structure 20 .

When the operating voltage of the plasma generator 3 is large, the operating power of the plasma generator 3 is also large, the maximum discharge length of the second electrode layer 33 is greater than the thickness of the first protection zone 44, and the second electrode layer 33 can pass through The second protective area 45 and the first protective area 44 discharge into the air to generate plasma, which increases the area of the second electrode layer 33 that can be discharged into the air through the main protective part 40, and increases the area where the plasma generator 3 can effectively pass through the main protective part 40. The protective part 40 discharges an adjustable range of operating power into the air. For example, when the frost on the surface of the heat exchanger 10 is severe, the operating voltage of the plasma generator 3 is increased, and the second electrode layer 33 can discharge into the air through the second protection zone 45 and the first protection zone 44 to generate plasma. body, the frost on the surface of the heat exchanger 10 can be melted faster, and the defrosting effect of the anti-frost structure 20 is improved.

According to some optional embodiments of the present application, referring to Figures 6-11, the thickness of the first protection area 44 is equal or gradually changes.

For example, the thickness of the first protection area 44 is equal. When the operating power of the plasma generator 3 is small, the maximum discharge length of the second electrode layer 33 is greater than the thickness of the second protection area 45 and less than the thickness of the first protection area 44. The second electrode layer 33 discharges into the air only through the second protection zone 45; when the operating power of the plasma generator 3 is large, the maximum discharge length of the second electrode layer 33 is greater than the thickness of the first protection zone 44, and the second electrode layer 33 discharges into the air only through the second protection zone 45. The layer 33 can discharge into the air through the second protection area 45 and the first protection area 44. This arrangement increases the area in which the second electrode layer 33 can discharge into the air through the main protection part 40. According to the surface texture of the heat exchanger 10 The operating power of the plasma generator 3 is adjusted according to the frosting condition, so that the heat exchanger 10 can be defrosted more effectively.

For another example, the thickness of the first protection zone 44 is gradually changed, the operating power of the plasma generator 3 corresponds to the maximum discharge length of the second electrode layer 33 , and the maximum discharge length of the second electrode layer 33 is greater than the minimum discharge length of the first protection zone 44 . When the thickness of the second electrode layer 33 is low, the second electrode layer 33 can be discharged into the air through the first protective area 44. By changing the operating power of the plasma generator 3, the area of the second electrode layer 33 discharged into the air through the first protective area 44 can be changed. The setting further increases the adjustable range of the operating power that the plasma generator 3 can effectively discharge into the air through the main protection part 40. The plasma generator 3 can adjust the operating voltage according to the frosting condition on the surface of the heat exchanger 10. More specific adjustments can reduce the energy consumption of the anti-frost structure 20 .

According to some optional embodiments of the present application, referring to Figures 6-11, the thickness of the second protection area 45 is equal or gradually changes.

For example, the thickness of the second protection area 45 is equal. When the operating power of the plasma generator 3 is small, the maximum discharge length of the second electrode layer 33 is greater than the thickness of the second protection area 45 and less than the thickness of the first protection area 44. The second electrode layer 33 only discharges to the air through the second protection zone 45. This arrangement can reduce the energy consumption of the anti-frost structure 20 when defrosting requirements are met.

For another example, the thickness of the second protection zone 45 is gradually changed, the operating power of the plasma generator 3 corresponds to the maximum discharge length of the second electrode layer 33 , and the maximum discharge length of the second electrode layer 33 is greater than the minimum discharge length of the second protection zone 45 . When the thickness of the second electrode layer 33 is small, the second electrode layer 33 can be discharged into the air through the second protective area 45. By changing the operating power of the plasma generator 3, the area of the second electrode layer 33 discharged into the air through the second protective area 45 can be changed. The setting further increases the adjustable range of the operating power that the plasma generator 3 can effectively discharge into the air through the main protection part 40. The plasma generator 3 can adjust the operating power according to the frosting condition on the surface of the heat exchanger 10. More specific adjustments can reduce the energy consumption of the anti-frost structure 20 .

According to some optional embodiments of the present application, with reference to Figures 6-11, the main protection part 40 also includes a third protection area 46, the thickness of the third protection area 46 is no greater than the thickness of the first protection area 44 and no less than the second protection area 46. The thickness of the protective zone 45.

When the operating voltage of the plasma generator 3 is small, the operating power of the plasma generator 3 is also small, and the maximum discharge length of the second electrode layer 33 is greater than the thickness of the second protection area 45 and less than the thickness of the third protection area 46 , the second electrode layer 33 can only penetrate the second protection zone 45 and discharge into the air;

When the operating voltage of the plasma generator 3 is increased, the maximum discharge length of the second electrode layer 33 becomes longer. When the maximum discharge length of the second electrode layer 33 is greater than the thickness of the third protection area 46 and less than the thickness of the first protection area 44 , the second electrode layer 33 can discharge into the air through the second protection area 45 and the third protection area 46;

When the operating voltage of the plasma generator 3 is further increased, the maximum discharge length of the second electrode layer 33 becomes longer. The maximum discharge length of the second electrode layer 33 is greater than the thickness of the first protection zone 44. The second electrode layer 33 can pass through the first protection zone 44. The second protection area 45, the third protection area 46 and the first protection area 44 discharge into the air.

This arrangement increases the area of the second electrode layer 33 that discharges into the air through the main protective part 40, thereby increasing the adjustable area range of the plasma generator 3 that penetrates the main protective part 40 and discharges into the air, and increases the plasma The body generator 3 can effectively penetrate the main protective part 40 and discharge into the air within an adjustable range of operating power, The operating power of the plasma generator 3 can be more specifically adjusted according to the frost formation on the surface of the heat exchanger 10 , thereby reducing the energy consumption of the anti-frost structure 20 .

According to some optional embodiments of the present application, with reference to FIGS. 10 and 11 , the thickness of the third protection zone 46 is gradually changed. When the plasma generator 3 is working, the operating power of the plasma generator 3 corresponds to the maximum discharge length of the second electrode layer 33. When the maximum discharge length of the second electrode layer 33 is greater than the minimum thickness of the third protection zone 46, the third The two electrode layers 33 can discharge into the air through the third protection zone 46. By adjusting the operating power of the plasma generator 3, the maximum discharge length of the second electrode layer 33 can be adjusted, and the second electrode layer 33 can penetrate different thicknesses. The third protection zone 46 discharges into the air, which can change the area of the second electrode layer 33 discharging into the air through the third protection zone 46, thereby increasing the operating power of the plasma generator 3 that can effectively penetrate the main protection part 40 and discharge into the air. With an adjustable range, the plasma generator 3 can more specifically adjust the operating power according to the frosting condition on the surface of the heat exchanger 10, and the anti-frost structure 20 can more effectively prevent and de-frost the heat exchanger 10. Frost.

According to some optional embodiments of the present application, referring to Figures 4-11, the third protection area 46 is connected between the first protection area 44 and the second protection area 45. By disposing the third protection area 46 between the first protection area 44 and the second protection area 45, the second electrode layer 33 penetrates the main protection part 40 and discharges into the air to generate plasma, so that the plasma generated by the second electrode layer 33 can be The plasma air mass is more concentrated, and the heat generated by the plasma air mass can be concentrated and transferred to the fins 2, reducing the loss of heat during the transfer process, so that the fins 2 can have a higher temperature, and the anti-frost structure 20 can effectively The surface of the heat exchanger 10 is defrosted, and the higher temperature plasma air mass can also prevent the lower temperature and higher humidity gases in the external environment from frosting when they come into contact with the fins 2, thereby effectively preventing the fins from being frosted. 2. Frosting prevents the heat exchanger 10 from frosting, which prevents the heat exchanger 10 from frosting and causing the work efficiency of the heat exchanger 10 to decrease. It improves the working efficiency of the anti-frost structure 20 and improves the anti-frost and defrost performance of the anti-frost structure 20. ability to reduce the energy consumption of the frost-proof structure 20.

According to some optional embodiments of the present application, with reference to FIGS. 6-11 , in the direction from the first protection area 44 to the second protection area 45 , the thickness of the third protection area 46 gradually decreases. The third protection area 46 is connected between the first protection area 44 and the second protection area 45 . In the direction from the second protection area 45 to the first protection area 44 , the thickness of the main protection part 40 gradually decreases. When the plasma generator 3 is working, the operating voltage of the plasma generator 3 is gradually increased, and the operating power of the plasma generator 3 is also gradually increased. The second electrode layer 33 penetrates the main protective part 40 and discharges into the air. It can also be gradually increased, and the operating power of the plasma generator 3 can be adjusted more specifically, which can more effectively improve the anti-frost and defrost capabilities of the anti-frost structure 20 and improve the working efficiency of the anti-frost structure 20 .

According to some optional embodiments of the present application, with reference to Figures 4-11, a groove 43 is formed on the side of the main protection portion 40 away from the second electrode layer 33, and the bottom wall of the groove 43 constitutes the second protection area 45. The portion of the main protection portion 40 located on the outer peripheral side of the groove 43 constitutes the first protection area 44 . When the second electrode layer 33 penetrates the second protective zone 45 and discharges into the air to generate plasma, the grooves 43 are provided to facilitate the concentration of the plasma, and the heat generated by the plasma air mass can be concentrated and transferred to the fins. The fins 2 reduce the loss of heat during the transfer process, so that the fins 2 can have a higher temperature. The anti-frost structure 20 can more effectively prevent and defrost the heat exchanger 10, and this arrangement has a simple structure. The structure of the groove 43 facilitates the arrangement of the first protective area 44 and the second protective area 45 with different thicknesses together, facilitates the production of the insulating protective layer 4, and improves production efficiency.

According to some optional embodiments of the present application, with reference to Figures 4-11, the main protection part 40 also includes a third protection area 46, and the third protection area 46 is connected between the first protection area 44 and the second protection area 45, In the direction from the first protection area 44 to the second protection area 45 , the thickness of the third protection area 46 gradually decreases, and the peripheral wall of the groove 43 constitutes the third protection area 46 . This arrangement facilitates the first protective area 44 , the second protective area 45 and the third protective area 46 with different thicknesses to be arranged together in the form of a groove 43 , and has a simple structure, which facilitates the production of the main protective part 40 and can improve production. efficiency.

And when the plasma generator 3 is working, the second electrode layer 33 penetrates the second protective area 45, the third protective area 46 and the first protective area 44 to discharge into the air to generate plasma. By setting the groove 43, the generated plasma can be Plasma is concentrated in the groove 43, and the higher-temperature plasma air mass can heat the fins 2 more intensively, reducing the loss of heat during the transfer process, so that the fins 2 can have a higher temperature, and the anti-frost structure 20 can The heat exchanger 10 can be frost-proofed and defrosted more effectively.

According to some optional embodiments of the present application, with reference to Figures 4-11, the insulating dielectric layer 31 is in a long strip shape, the second electrode layer 33 is in a long strip shape extending along the length direction of the insulating dielectric layer 31, and the groove 43 is A plurality of grooves 43 are provided at intervals along the length direction of the main protective part 40 . By arranging the second electrode layer 33 in a strip shape extending along the length direction of the insulating dielectric layer 31 , the plasma generator 3 can discharge into the air in the form of dielectric barrier discharge, and under certain operation conditions of the plasma generator 3 Under voltage, the entire second electrode layer 33 can be discharged into the air through the main protective part 40, and can be discharged into the air relatively uniformly in the anti-virus direction along the length of the insulating dielectric layer 31, and more electricity can be generated at the main protective part 40. Plasma can heat the fins 2 faster and more uniformly, and can improve the working efficiency of the anti-frost structure 20 .

By providing a plurality of grooves 43 spaced apart along the length direction of the main protection part 40, the plasma generator 3 can discharge to the air more uniformly through the grooves 43 along the length direction of the main protection part 40, so that it can be discharged more uniformly. Ground heating fins 2 can improve the working efficiency of the anti-frost structure 20 .

According to some embodiments of the present application, the thickness of the main protection part 40 gradually increases or decreases in the direction from one side of the main protection part 40 to the other side of the main protection part 40 . By changing the operating power of the plasma generator 3, the maximum discharge length of the second electrode layer 33 can be changed. When the maximum discharge length is greater than the thickness of the main protective part 40, the second electrode unit can penetrate the main protective part 40 and discharge into the air. By setting the thickness of the main protection part 40 to gradually increase or decrease, the area through which the second electrode layer 33 penetrates the main protection part 40 and discharges into the air can be changed by changing the operating power of the plasma generator 3, thereby changing the The amount of plasma generated by the plasma generator 3 during operation, the plasma generator 3 can adjust the operating power according to the frosting condition on the surface of the heat exchanger 10 .

According to some embodiments of the present application, with reference to FIGS. 4-11 , the insulating dielectric layer 31 is in a long strip shape, and the second electrode layer 33 is in a long strip shape extending along the length direction of the insulating dielectric layer 31 . The width is smaller than the width of the insulating dielectric layer 31. The two opposite end surfaces in the width direction of the second electrode layer 33 are the first end surface 34 and the second end surface 35 respectively. The part of the insulating protective layer 4 covering the first end surface 34 is the first end surface. The protective part 41 and the part of the insulating protective layer 4 covering the second end surface 35 are the second protective parts 42 . The thicknesses of the first protective part 41 and the second protective part 42 are both greater than the minimum thickness of the main protective part 40 . When the operating power of the plasma generator 3 is high, the second electrode layer 33 can discharge from the first protective part 41 and the second protective part 42 to the air through the first end face 34 and the second end face 35 respectively. This arrangement can increase The larger the area of the second protective part 42 that discharges into the air through the insulating protective layer 4 can generate more plasma, heat the fins 2 faster, and improve the working efficiency of the anti-frost structure 20 .

According to some embodiments of the present application, with reference to Figures 4-11, the fins 2 of the heat exchanger 10 constitute the first electrode layer 32, the insulating dielectric layer 31 is in a strip shape extending along the length direction of the fins 2, and the second The electrode layer 33 is in a strip shape extending along the length direction of the insulating dielectric layer 31 .

This arrangement allows the plasma generator 3 to generate plasma in the form of dielectric barrier discharge. The insulating dielectric layer 31 is in a long strip shape extending along the length direction of the fin 2 , and the second electrode layer 33 is in a strip shape along the length of the insulating dielectric layer 31 . A long strip extending in the direction, this arrangement can make the plasma generator 3 more uniform Ground heating of the fins 2 can defrost the surface of the heat exchanger 10 more evenly, ensuring the normal operation of the heat exchanger 10, and the area of the fins 2 covered by the insulating dielectric layer 31 and the second electrode layer 33 Larger, when the plasma generator 3 is working, it can generate more plasma, so that the plasma generator 3 can heat the fins 2 faster, and the working efficiency of the anti-frost structure 20 can be improved.

By using the fins 2 of the heat exchanger 10 to form the first electrode layer 32 of the plasma generator 3, when the plasma generator 3 is working, the plasma gas mass with a higher temperature formed around the plasma generator 3 can be quickly The heat is transferred to the fins 2 of the heat exchanger 10, reducing the loss of heat during the transfer process, so that the fins 2 of the heat exchanger 10 can have a higher temperature, thereby effectively preventing the fins of the heat exchanger 10 from 2. Frosting prevents frosting on the outer surface of the heat exchanger 10, prevents the heat exchanger 10 from frosting and causing the heat exchanger 10 to reduce its working efficiency, improves the working efficiency of the anti-frost structure 20, and improves the anti-frost of the anti-frost structure 20. The ability to prevent frost reduces the energy consumption of the anti-frost structure 20 , and this arrangement can make full use of the components in the heat exchanger assembly 100 , has a reasonable layout, and has a compact structure, which can reduce the production cost of the heat exchanger assembly 100 .

According to some embodiments of the present application, referring to Figure 4, the fins 2 of the heat exchanger 10 constitute the first electrode layer 32, and the insulating dielectric layer 31, the second electrode layer 33 and the insulating protective layer 4 are provided on the fins 2 Inlet end.

The air flows into the heat exchanger 10 from the air inlet side of the heat exchanger 10. After heat exchange between the air and the heat exchanger 10, the heat exchanged air flows out from the air outlet side. In winter, when the air conditioner is heating, the heat exchanger 10 Frost will form on the air inlet side first.

By arranging the insulating dielectric layer 31 , the second electrode layer 33 and the insulating protective layer 4 at the air inlet end of the fin 2 , when the plasma generator 3 is operating, the higher temperature air near the plasma generator 3 is The plasma air mass can quickly transfer heat to the air inlet end of the fin 2, reducing the heat loss during the transfer process, so that the air inlet end of the fin 2 can have a higher temperature, thereby effectively preventing the heat exchanger 10 from Frost forms on the air inlet side, and spreads to the entire heat exchanger 10 with the airflow, preventing frost in other areas of the heat exchanger 10, thereby preventing frost on the heat exchanger 10 and causing a decrease in the working efficiency of the heat exchanger 10, and improves The working efficiency of the anti-frost structure 20 improves the anti-frost and defrost capabilities of the anti-frost structure 20 and reduces the energy consumption of the anti-frost structure 20 .

The heat exchanger assembly 100 according to some specific embodiments of the present invention is described below with reference to FIGS. 4-11.

Referring to FIGS. 4-11 , in this embodiment, the heat exchanger assembly 100 includes a heat exchanger 10 and an anti-frost structure 20 . The anti-frost structure 20 is provided on the heat exchanger 10 . The anti-frost structure 20 includes a plasma generator 3 for generating plasma. The plasma generator 3 includes an insulating dielectric layer 31 and two opposite sides in the thickness direction of the insulating dielectric layer 31 . There are a first electrode layer 32 and a second electrode layer 33 on the side, the first electrode layer 32 is suitable for grounding, and the second electrode layer 33 is suitable for connecting to a high-voltage power supply. The fins 2 of the heat exchanger 10 constitute the first electrode layer 32, and the insulating dielectric layer 31 is in a strip shape extending along the length direction of the fins 2 (refer to the e1 direction in Figures 4, 6 and 8). The two electrode layers 33 are in a strip shape extending along the length direction of the insulating dielectric layer 31 . The width of the second electrode layer 33 is smaller than the width of the insulating dielectric layer 31 . The two opposite end surfaces of the second electrode layer 33 in the width direction (refer to the e2 direction in FIGS. 7 to 9 ) are respectively the first end surface 34 and the second end surface 34 . Two end faces 35.

The anti-frost structure 20 further includes an insulating protective layer 4 covering the outer surface of the second electrode layer 33 . In the thickness direction of the insulating dielectric layer 31 , a portion of the second electrode layer 33 away from the insulating dielectric layer 31 The surface is the main surface of the electrode 333, and the part of the insulating protective layer 4 covering the main surface 333 of the electrode is the main protective part 40, and the thickness of the main protective part 40 varies. The part of the insulating protective layer 4 covering the first end surface 34 is the first protective part 41, and the part of the insulating protective layer 4 covering the second end surface 35 is the second protective part 42. The first protective part 41 and the second protective part 42 are The thicknesses are all greater than the minimum thickness of the main protective part 40 .

A groove 43 is formed on the side of the main protection part 40 away from the second electrode layer 33 . The bottom wall of the groove 43 constitutes the second protection area 45 , and the peripheral wall of the groove 43 constitutes the third protection area 46 . The outer peripheral side portion constitutes the first protection area 44, and the third protection area 46 is connected between the first protection area 44 and the second protection area 45. In the direction from the first protection area 44 to the second protection area 45, the third protection area 46 is connected to the first protection area 44 and the second protection area 45. The thickness of the three protection zones 46 gradually decreases. Wherein, the first protection area 44 has the same thickness, the second protection area 45 has the same thickness, and the third protection area 46 has a gradual thickness. There are a plurality of grooves 43 , and the plurality of grooves 43 are arranged at intervals along the length direction of the main protection part 40 (refer to the e1 direction in FIGS. 4 , 6 and 8 ).

According to the distance between the first electrode layer 32 and the second electrode layer 33 (ie, the thickness of the insulating dielectric layer 31 ), and the potential difference between the first electrode layer 32 and the second electrode layer 33 (ie, the thickness of the plasma generator 3 operating voltage), the maximum discharge length of the second electrode layer 33 discharging into the air can be calculated. The operating voltage of the plasma generator 3 is different, the operating power of the plasma generator 3 is also different, and the maximum discharge length of the second electrode layer 33 discharged into the air is also different.

When the operating voltage of the plasma generator 3 is small, the operating power of the plasma generator 3 is also small, and the maximum discharge length of the second electrode layer 33 is greater than the thickness of the second protection area 45 and less than the thickness of the third protection area 46 , the second electrode layer 33 can only discharge to the air through the second protection zone 45;

Increasing the operating voltage of the plasma generator 3 also increases the operating power of the plasma generator 3, and the maximum discharge length of the second electrode layer 33 becomes longer, and the maximum discharge length of the second electrode layer 33 is greater than the third protection zone 46 When the thickness is smaller than the thickness of the first protection area 44, the second electrode layer 33 can discharge to the air through the second protection area 45 and the third protection area 46;

This setting can control the working voltage of the plasma generator 3 according to the frosting condition of the heat exchanger 10 and change the operating power of the plasma generator 3, thereby controlling the second electrode layer 33 to generate electricity through the insulating protective layer 4. The position and area of the plasma can effectively prevent water molecules in the air from frosting on the surface of the heat exchanger 10. When frost forms on the surface of the heat exchanger 10, the operation of the plasma generator 3 can also be adjusted according to the frosting situation. power, the energy consumption of the frost-proof structure 20 can be reduced.

As shown in Figures 12 to 15, according to some embodiments of the present application, the heat exchanger assembly 100 includes a heat exchanger 10 and an anti-frost structure 200. The anti-frost structure 20 includes an anti-frost module 200. The anti-frost module 200 is provided on the exchanger. The outer surface of the heat exchanger 10 and at least part of the fins 2 of the heat exchanger 10 constitute the first electrode unit 12 . For example, a part of the fins 2 of the heat exchanger 10 constitutes the first electrode unit 12; for another example, all the fins 2 of the heat exchanger 10 constitute the first electrode unit 12. The anti-frost module 200 is provided on the outer surface of the heat exchanger 10. The anti-frost module 200 includes a dielectric unit 21 and a second electrode unit 24. The dielectric unit 21 is located between the first electrode unit 12 and the second electrode unit 24 to form plasma. Body Generator 3. The first electrode unit 12 is suitable for grounding, and the second electrode unit 24 is suitable for connecting to a high-voltage power supply.

By disposing the second electrode unit 24 on the outer surface of the heat exchanger 10 and connecting the second electrode unit 24 to a high-voltage power supply, when the plasma generator 3 is working, the second electrode unit 24 can discharge into the air. A dielectric unit 21 is provided between 12 and the second electrode unit 24. The plasma generator 3 can generate plasma through the discharge form of bulk dielectric barrier discharge, which can limit the growth of the discharge current, improve the uniformity of discharge, and effectively avoid the discharge from arcing. Or spark discharge conversion, which can improve the safety of use of the plasma generator 3 and improve the reliability of the plasma generator 3.

By forming at least part of the fins 2 of the heat exchanger 10 into the first electrode unit 12 of the plasma generator 3, the components in the heat exchanger assembly 100 can be fully utilized, the layout is reasonable, the structure is compact, and the cost of the heat exchanger assembly 100 can be reduced. Cost of production. Since the plasma generator 3 is connected to a high-voltage power supply, the first electrode unit 12 Grounding can effectively ensure the electrical safety of the plasma generator 3, ensure the reliability of the plasma generator 3, and ensure the reliability of the anti-frost module 200.

When the plasma generator 3 is working, the plasma generator 3 can discharge into the air and ionize the air near the plasma generator 3 into plasma. When the plasma generator 3 generates plasma, a microcurrent will pass through the electrode layer of the plasma generator 3. The microcurrent passing through the electrode layer of the plasma generator 3 will produce a thermal effect, causing the temperature of the electrode layer of the plasma generator 3 to rise. High, so that the air around the anti-frost module 200 can be heated. Moreover, when the plasma generator 3 generates plasma, the electrons in the plasma can collide with other particles in the air to produce an ionization effect, heating the air around the anti-frost module 200, and forming a higher temperature near the anti-frost module 200. Plasma gas mass. When the plasma generator 3 generates plasma, the plasma accumulation will form a certain ion wind and produce an aerodynamic effect, causing the plasma air mass to flow between the heat exchanger 10 and the anti-frost module 200 .

By using at least part of the fins 2 of the heat exchanger 10 to form the first electrode unit 12 of the plasma generator 3, when the plasma generator 3 is operating, a plasma gas mass with a relatively high temperature is formed around the plasma generator 3. The heat can be quickly transferred to the fins 2 of the heat exchanger 10, reducing the heat loss during the transfer process, so that the fins 2 of the heat exchanger 10 can have a higher temperature, thereby effectively preventing the heat exchanger 10 from being damaged. Frosting on the fins 2 prevents frosting on the outer surface of the heat exchanger 10, which prevents the heat exchanger 10 from frosting and causing a decrease in the working efficiency of the heat exchanger 10, improves the working efficiency of the anti-frost module 200, and improves the anti-frost module 200. The ability to defrost frost reduces the energy consumption of the anti-frost module 200.

It has been verified that when the heat exchanger assembly 100 of the embodiment of the present application is used in an air conditioner, in the non-stop mode of the air conditioner, the anti-frost module 200 can quickly remove the frost of the fins 2 within 2 to 5 seconds after being turned on. Surface layer of frost. And in a simulated frosting environment, under normal circumstances, frost will appear on the surface of the heat exchanger 10 in about ten minutes. After one defrost by the anti-frost module 200, it will take 30 to 40 minutes for the surface of the heat exchanger 10 to re-frost. , not only to achieve defrosting, but also to delay frosting time.

For example, the heat exchanger 10 is installed in the outdoor unit of the air conditioner. When the surface of the heat exchanger 10 is not frosted, the plasma generator 3 can evaporate the moisture in the air near the anti-frost module 200, and the plasma air mass can transfer the heat. To the heat exchanger 10, increase the temperature of the heat exchanger 10, thereby effectively preventing water molecules in the air from condensing into frost on the surface of the heat exchanger 10, ensuring the normal operation of the heat exchanger 10, and ensuring the normal operation of the air conditioner outdoor unit. operation to ensure the heating effect of the air conditioner and improve the overall performance of the air conditioner.

When frost forms on the surface of the heat exchanger 10, the higher temperature plasma air mass can also transfer heat to the frost on the surface of the heat exchanger 10 and melt the frost on the surface of the heat exchanger 10, thereby defrosting. , ensure the normal operation of the heat exchanger 10, ensure the normal operation of the outdoor unit of the air conditioner, ensure the heating effect of the air conditioner, and improve the overall performance of the air conditioner.

The anti-frost module 200 is installed on the heat exchanger 10 as a whole. Compared with arranging the medium unit 21 and the second electrode unit 24 on the fins 2 of the heat exchanger 10, this arrangement simplifies the installation process and facilitates frost prevention. The installation and manufacturing of the module 200 and the heat exchanger 10 can improve production efficiency and facilitate the large-scale production and manufacturing of the anti-frost module 200 .

According to the heat exchanger assembly 100 of the embodiment of the present application, by disposing the anti-frost module 200 on the outer surface of the heat exchanger 10, water molecules in the air can be effectively prevented from frosting on the surface of the heat exchanger 10. When the surface of 10 is frosted, it has a defrosting effect, and there is no need for the air conditioner to change the working mode, ensuring the normal operation of the heat exchanger assembly 100, ensuring the heating effect of the air conditioner, and improving the overall performance of the air conditioner; and, anti-frost The module 200 is installed on the heat exchanger 10 as a whole, which facilitates the installation and manufacturing of the anti-frost module 200 and the heat exchanger 10 , can improve production efficiency, and is also conducive to large-scale production and manufacturing of the heat exchanger assembly 100 . According to some embodiments of the present application, with reference to Figures 1 and 2, the media unit 21 is formed in a plate shape, the side surface of the media unit 21 away from the heat exchanger 10 is the mounting surface 23, and the second electrode unit 24 is disposed on the mounting surface. The electrode layer on surface 23. By arranging the dielectric unit 21 in a plate shape and the second electrode unit 24 on the mounting surface 23, the discharge area of the second electrode unit 24 can be increased, and the anti-frost and defrosting performance of the anti-frost module 200 can be improved, and the It is convenient to set the second electrode unit 24 on the dielectric unit 21, and the dielectric unit 21 can be fully utilized, with a reasonable layout and a compact structure.

According to some optional embodiments of the present application, referring to FIGS. 12 and 13 , the second electrode unit 24 is a printed electrode layer printed on the mounting surface 23 . The dielectric unit 21 is located between the first electrode unit 12 and the second electrode unit 24. There is a certain distance between the second electrode unit 24 and the first electrode unit 12. The plasma generator 3 can be generated by a discharge form of bulk dielectric barrier discharge. plasma. The second electrode unit 24 is printed on the mounting surface 23 of the dielectric unit 21 by printing, so that the dielectric unit 21 and the second electrode unit 24 can be closely attached to each other to prevent the second electrode unit 24 and the dielectric unit 21 from interfering with each other. The gap exists to prevent plasma from being generated in the form of bulk dielectric barrier discharge between the second electrode unit 24 and the dielectric unit 21, so that the plasma generator 3 can completely pass the discharge form of the bulk dielectric barrier discharge between the dielectric unit 21 and the first Plasma is generated between the electrode units 12, and the plasma air mass can transfer heat to the heat exchanger 10, thereby improving the working efficiency of the plasma generator 3 and improving the anti-frost and defrost performance of the anti-frost module 200. In addition, the second electrode unit 24 is disposed on the mounting surface 23 by printing, which facilitates the installation of the second electrode unit 24 on the mounting surface 23 of the media unit 21 and improves production efficiency.

According to some optional embodiments of the present application, referring to Figures 12 and 13, the media unit 21 is an integrally formed structure. By arranging the media unit 21 as an integrated structure, the number of parts can be reduced, the installation process can be simplified, the production and manufacturing of the frost-proof structure can be facilitated, and the production efficiency can be improved.

According to some optional embodiments of the present application, referring to Figures 12 and 13, the second electrode unit 24 is an integrally formed structure. By setting the second electrode unit 24 as an integrally formed structure, when the second electrode unit 24 is connected to the high-voltage power supply, only one connection end 26 for connecting the second electrode unit 24 to the high-voltage power supply can be provided, which facilitates the connection between the high-voltage power supply and the second high-voltage power supply. The connection of the electrode unit 24 can reduce the number of parts, and this arrangement facilitates the production and manufacturing of the second electrode unit 24, simplifies the installation process, and facilitates the installation of the second electrode unit 24 on the mounting surface 23 of the dielectric unit 21.

According to some embodiments of the present application, with reference to Figures 12 and 13, the heat exchanger 10 has an air inlet side A and an air outlet side B that are oppositely arranged. The anti-frost module 200 is provided on the air inlet side A. The anti-frost module 200 is formed with Ventilated structure. By forming a ventilation structure on the anti-frost module 200, air can enter the heat exchanger 10 through the ventilation structure for heat exchange, thereby ensuring the normal operation of the heat exchanger 10.

The air flows into the heat exchanger 10 from the air inlet side A of the heat exchanger 10. After the air exchanges heat with the heat exchanger 10, the heat exchanged air flows out from the air outlet side B. In winter, when the air conditioner is heating, the heat exchanger The device 10 will first form frost on the air inlet side A.

By arranging the anti-frost module 200 on the air inlet side A, when the plasma generator 3 is working, the higher temperature plasma air mass near the plasma generator 3 can quickly transfer heat to the inlet air of the heat exchanger 10 side A, reducing the loss of heat during the transfer process, so that the air inlet side A of the heat exchanger 10 can have a higher temperature, thereby effectively preventing frost on the air inlet side A of the heat exchanger 10 and spreading with the air flow to The entire heat exchanger 10 prevents other areas of the heat exchanger 10 from frosting, thereby preventing the heat exchanger 10 from frosting and causing a decrease in the working efficiency of the heat exchanger 10, improving the working efficiency of the anti-frost module 200, and improving frost protection. The anti-frost and defrost capabilities of the module 200 reduce the energy consumption of the anti-frost module 200 .

According to some optional embodiments of the present application, the heat exchanger 10 has an air inlet side A and an air outlet side B arranged oppositely, and the anti-frost module 200 is provided on the air outlet side B. At this time, the main Micro current is used to generate thermal effect through the electrode layer of the plasma generator 3 for defrosting.

According to some optional embodiments of the present application, referring to FIG. 12 , the anti-frost module 200 covers the entire air inlet side A or air outlet side B of the heat exchanger 10 . This setting allows the anti-frost module 200 to prevent and defrost the entire inlet side A or outlet side B of the heat exchanger 10, which can effectively prevent the heat exchanger 10 from frosting and causing a decrease in the working efficiency of the heat exchanger 10. down, thereby ensuring the normal operation of the heat exchanger 10.

According to some optional embodiments of the present application, with reference to Figures 12 and 13, the media unit 21 is formed in a plate shape, the side surface of the media unit 21 away from the heat exchanger 10 is the mounting surface 23, and the second electrode unit 24 is provided On the electrode layer of the mounting surface 23, the ventilation structure includes a plurality of ventilation holes 22 formed on the dielectric unit 21 and arranged at intervals, and at least part of the second electrode unit 24 surrounds the outer peripheral side of the ventilation holes 22. For example, a part of the second electrode unit 24 surrounds the outer peripheral side of the ventilation hole 22 ; for another example, the entire second electrode unit 24 surrounds the outer peripheral side of the ventilation hole 22 .

The air enters the heat exchanger 10 from the air inlet side A of the heat exchanger 10. By arranging the ventilation holes 22 on the medium unit 21, it is convenient for the air to flow into the heat exchanger 10 from the ventilation holes 22, which reduces the impact of the anti-frost module 200 on the incoming heat exchanger. The influence of the air flow of the device 10. By arranging the second electrode unit 24 to surround the outer peripheral side of the vent hole 22, the ventilation effect of the vent hole 22 will not be affected, so that the air can flow into the heat exchanger 10 from the vent hole 22 smoothly, and this arrangement makes the second electrode The unit 24 can still normally generate plasma with the dielectric unit 21 and the first electrode unit 12 in the form of bulk dielectric barrier discharge, which can ensure the normal operation of the anti-frost structure. This arrangement allows gas to flow into the heat exchanger 10 smoothly through the ventilation holes 22, which ensures the efficiency of heat exchange between the gas and the heat exchanger 10, and ensures the normal operation of the anti-frost structure.

According to some optional embodiments of the present application, with reference to Figures 12 and 13, the second electrode unit 24 includes a plurality of electrode rings 25. The number of electrode rings 25 is the same as the number of ventilation holes 22 and corresponds one to one. Each electrode ring 25 surrounds the outer peripheral side of the corresponding ventilation hole 22, and all electrode rings 25 are connected as one. This arrangement can increase the discharge area of the electrode ring 25 and improve the working efficiency of the plasma generator 3 when the plasma generator 3 is working. By connecting all the electrode rings 25 into one body, when the electrode ring 25 is connected to the high-voltage power supply, only one connection end 26 for connecting the electrode ring 25 to the high-voltage electrode can be provided, which facilitates the connection between the electrode ring 25 and the high-voltage power supply and reduces the number of parts. The number is convenient for installing the electrode ring 25 on the dielectric unit 21.

Moreover, by arranging the electrode ring 25 to surround the outer peripheral side of the corresponding ventilation hole 22, the structural strength of the ventilation hole 22 can be improved, and the ventilation hole 22 can be prevented from being deformed during the operation of the anti-frost module 200, thereby preventing the medium unit 21 from being deformed. The deformation can improve the reliability of the plasma generator 3. By connecting all the electrode rings 25 into one, the structural strength of the electrode ring 25 can be improved, and the stability of the electrode ring 25 can be improved, thereby improving the reliability of the anti-frost module 200. property, which can ensure the anti-frost and defrost performance of the anti-frost module 200.

Alternatively, the electrode ring 25 may be circular, elliptical, polygonal, etc., for example, the electrode ring 25 may be rectangular.

For example, in some optional embodiments of the present application, referring to Figures 12 and 13, the electrode ring 25 is a circular ring. When the plasma generator 3 is working, the current passing through the circular ring is relatively uniform, and plasma can be generated uniformly in each part of the circular ring. Therefore, by setting the electrode ring 25 to a circular ring, it can be ensured that the electrode ring 25 is not easily hit. Wearing can improve the safety of use of the plasma generator 3 and improve the reliability of the plasma generator 3.

Optionally, the shapes of the electrode ring 25 and the ventilation holes 22 match. For example, the electrode ring 25 and the ventilation holes 22 are both circular. For example, the electrode ring 25 and the ventilation holes 22 are both rectangular.

According to some optional embodiments of the present application, referring to Figures 12 and 13, a plurality of ventilation holes 22 are arranged in an array. This arrangement allows the ventilation holes 22 to be regularly arranged on the media unit 21, so that the gas can enter the heat exchanger 10 evenly through the ventilation holes 22, and the air inlet volume at each position on the air inlet side A of the heat exchanger 10 is relatively uniform. The efficiency of heat exchange between the gas and the heat exchanger 10 can be ensured.

According to some optional embodiments of the present application, with reference to FIGS. 14 and 15 , a plurality of ventilation holes 22 are arranged at intervals along a first direction (refer to e1 direction in FIGS. 12-15 ), and the ventilation holes 22 are arranged along a second direction (refer to e1 direction in FIGS. 12-15 ). (direction e2 in FIGS. 12-15 ) extends in a long strip shape, and the first direction and the second direction intersect and are both perpendicular to the thickness direction of the dielectric unit 21 . By setting the vent holes 22 in a long strip shape, the area of the vent holes 22 is increased, so that gas can enter the heat exchanger 10 from the vent holes 22 more easily, and the vent holes 22 are regularly arranged on the media unit 21. The gas can enter the heat exchanger 10 evenly through the ventilation holes 22, thereby ensuring the efficiency of heat exchange between the gas and the heat exchanger 10.

For example, in some optional embodiments of the present application, referring to Figures 14 and 15, a plurality of ventilation holes 22 are arranged at intervals along the first direction, and the ventilation holes 22 extend in a long strip shape along the second direction. The directions intersect and are perpendicular to the thickness direction of the dielectric unit 21 . The electrode ring 25 is a rectangular ring extending along the second direction. Multiple electrode rings 25 are spaced apart along the first direction. Each electrode ring 25 surrounds the outer periphery of the ventilation hole 22 side. By arranging the electrode ring 25 in a rectangular shape, the electrode ring 25 can cooperate with the ventilation hole 22 to ensure the normal operation of the anti-frost module 200 and increase the area of the ventilation hole 22 to further ensure that the heat between the gas and the heat exchanger 10 is maintained. efficiency of exchange.

According to some optional embodiments of the present application, with reference to Figures 12 and 13, multiple fins 2 of the heat exchanger 10 are arranged along the first direction, air flow channels are defined between adjacent fins 2, and the ventilation holes 22 and The air flow channels are arranged relative to each other. This arrangement allows air to directly enter the air flow channel through the vent holes 22, which facilitates the air to enter the heat exchanger 10 through the vent holes 22, which can improve the ventilation effect of the vent holes 22, reduce wind resistance, and further ensure the heat transfer between the air and the heat exchanger 10. efficiency of exchange.

According to some optional embodiments of the present application, with reference to Figure 12, the other sides of the heat exchanger 10 except the air inlet side A and the air outlet side B are the non-wind sides, and the anti-frost module 200 has a use state and a non-use state, where , in the use state, the anti-frost module 200 covers the air inlet side A or the air outlet side B; in the non-use state, the anti-frost module 200 can be stored on the non-wind side.

In the use state, the anti-frost module 200 can prevent and defrost the heat exchanger 10, ensuring the normal operation of the heat exchanger 10; in the non-use state, the anti-frost module 200 can be stored on the non-wind side to prevent frost. The module 200 is not on the air flow path of the heat exchanger 10, which can reduce wind resistance, increase the amount of air that exchanges heat with the heat exchanger 10, reduce the impact of the anti-frost module 200 on the air inlet of the heat exchanger 10, and improve heat exchange. The heat exchange effect and heat exchange efficiency of the device 10. This setting further reduces the impact of the anti-frost module 200 on blocking the airflow entering the heat exchanger 10 by setting the anti-frost module 200 to the use state and the non-use state, and can better ensure the heat exchange between the gas and the heat exchanger 10 efficiency, thereby ensuring the normal operation of the heat exchanger 10.

According to some optional embodiments of the present application, with reference to Figures 12 and 13, the anti-frost module 200 is a flexible structure, with a reel provided on the non-wind side. The anti-frost module 200 has a fixed end and a free end arranged oppositely, and the fixed end and the reel are Connected, wherein, in the non-use state, the anti-frost module 200 is wound on the reel. In the use state, the free end of the anti-frost module 200 is unfolded and covers the air inlet side A of the heat exchanger 10 . By setting the anti-frost module 200 to have a flexible structure, it is convenient to wind the anti-frost module 200 on the reel, so that the anti-frost module 200 can be stored on the non-wind side when not in use. By setting the anti-frost module 200 to be wound on the reel, It is convenient for the anti-frost module 200 to switch between the use state and the non-use state.

Optionally, the anti-frost module 200 includes a dielectric unit 21 and a second electrode unit 24. The second electrode unit 24 includes a connection end 26 for connecting to a high-voltage power supply, The media unit 21 has a fixed end and a free end arranged oppositely. The fixed end is adjacent to the reel. The connecting end 26 can be provided at the fixed end of the anti-frost module 200, which facilitates the connection between the connecting end 26 and the high-voltage power supply, and can avoid the second The connection line between the electrode unit 24 and the high-voltage power supply is inconvenient to be wound with the anti-frost module 200, so that the anti-frost module 200 can be stored on the non-wind side by being wound on the reel.

According to some embodiments of the present application, referring to FIG. 13 , the anti-frost module 200 is detachably connected to the heat exchanger 10 . This arrangement facilitates the installation, disassembly and maintenance of the anti-frost module 200 .

A heat exchanger assembly 100 according to some embodiments of the present application is described below with reference to Figures 12-13.

Referring to Figures 12 and 13, in this embodiment, the heat exchanger assembly 100 includes a heat exchanger 10 and an anti-frost module 200. At least part of the fins 2 of the heat exchanger 10 constitute the first electrode unit 12. The anti-frost module 200 Disposed on the outer surface of the heat exchanger 10 , the anti-frost module 200 includes a dielectric unit 21 and a second electrode unit 24 . The dielectric unit 21 is located between the first electrode unit 12 and the second electrode unit 24 to form the plasma generator 3 . The first electrode unit 12 is suitable for grounding, and the second electrode unit 24 is suitable for connecting to a high-voltage power supply. The dielectric unit 21 is formed in a plate shape, the side surface of the dielectric unit 21 away from the heat exchanger 10 is the mounting surface 23 , and the second electrode unit 24 is a printed electrode layer printed on the mounting surface 23 . The dielectric unit 21 has an integrally formed structure, and the second electrode unit 24 has an integrally formed structure.

The heat exchanger 10 has an air inlet side A and an air outlet side B arranged oppositely. The anti-frost module 200 is provided on the air inlet side A. The anti-frost module 200 is formed with a ventilation structure. The ventilation structure includes a plurality of ventilation holes 22 formed on the media unit 21 and arranged at intervals. The plurality of ventilation holes 22 are arranged at intervals along the first direction (refer to the e1 direction in Figures 12-13). The plurality of ventilation holes 22 are arranged in an Arranged in an array, the second electrode unit 24 includes a plurality of electrode rings 25. The electrode rings 25 are circular rings. The number of electrode rings 25 is the same as the number of ventilation holes 22 and corresponds one to one. Each electrode ring 25 is surrounded by a corresponding On the outer peripheral side of the ventilation hole 22, all the electrode rings 25 are connected as one body. The shape of the electrode ring 25 matches the ventilation hole 22, and the ventilation hole 22 is also circular. The plurality of fins 2 of the heat exchanger 10 are arranged along a first direction (refer to the e1 direction in FIGS. 12-13). An air flow channel is defined between adjacent fins 2, and the ventilation holes 22 are arranged opposite to the air flow channel.

The other sides of the heat exchanger 10 except the air inlet side A and the air outlet side B are the non-wind side. The anti-frost module 200 has a use state and a non-use state. In the use state, the anti-frost module 200 covers the air inlet side. A; In the non-use state, the anti-frost module 200 can be stored on the non-wind side. The anti-frost module 200 has a flexible structure and is provided with a reel on the non-wind side. The anti-frost module 200 has a fixed end and a free end arranged oppositely, and the fixed end and The reels are connected, and in the non-use state, the anti-frost module 200 is wound on the reels. Optionally, the second electrode unit 24 includes a connection end 26 for connecting to a high-voltage power supply. The connection end 26 is provided at the fixed end of the anti-frost module 200 to facilitate the arrangement of the circuit between the connection end 26 and the high-voltage power supply and facilitate the anti-frost module. 200 for winding. The anti-frost module 200 is detachably connected to the heat exchanger 10 .

The anti-frost module 200 in this embodiment is disposed on the outer surface of the heat exchanger 10, which can effectively prevent water molecules in the air from frosting on the surface of the heat exchanger 10, and can remove frost when it forms on the surface of the heat exchanger 10. frost effect, and there is no need for the air conditioner to change the working mode, ensuring the normal operation of the heat exchanger assembly 100, ensuring the heating effect of the air conditioner, and improving the overall performance of the air conditioner; and, the anti-frost module 200 is installed to the heat exchanger as a whole 10, it is convenient to install and manufacture the anti-frost module 200 and the heat exchanger 10, which can improve production efficiency and is also conducive to realizing large-scale production and manufacturing of the heat exchanger assembly 100. Moreover, by setting the electrode ring 25 to be circular, when the plasma generator 3 is operating, the current passing through the circular ring is more uniform, and plasma can be generated uniformly in each part of the circular ring. Therefore, by setting the electrode ring 25 to be circular, shaped ring, which can ensure that the electrode ring 25 is not easily broken down, can improve the safety of the plasma generator 3, and improve the reliability of the plasma generator 3.

A heat exchanger assembly 100 according to some embodiments of the present application is described below with reference to Figures 14-15.

Referring to Figures 14 and 15, in this embodiment, the heat exchanger assembly 100 includes a heat exchanger 10 and an anti-frost module 200. At least part of the fins 2 of the heat exchanger 10 constitute the first electrode unit 12. The anti-frost module 200 Disposed on the outer surface of the heat exchanger 10 , the anti-frost module 200 includes a dielectric unit 21 and a second electrode unit 24 . The dielectric unit 21 is located between the first electrode unit 12 and the second electrode unit 24 to form the plasma generator 3 . The first electrode unit 12 is suitable for grounding, and the second electrode unit 24 is suitable for connecting to a high-voltage power supply. The dielectric unit 21 is formed in a plate shape, the side surface of the dielectric unit 21 away from the heat exchanger 10 is the mounting surface 23 , and the second electrode unit 24 is a printed electrode layer printed on the mounting surface 23 . The dielectric unit 21 has an integrally formed structure, and the second electrode unit 24 has an integrally formed structure.

The heat exchanger 10 has an air inlet side A and an air outlet side B arranged oppositely. The anti-frost module 200 is provided on the air inlet side A. The anti-frost module 200 is formed with a ventilation structure. The ventilation structure includes a plurality of ventilation holes 22 formed on the media unit 21 and arranged at intervals. The plurality of ventilation holes 22 are arranged at intervals along the first direction (refer to the e1 direction in Figures 14-15). The ventilation holes 22 are arranged along the second direction. The direction (refer to the e2 direction in FIGS. 14-15 ) extends in a long strip shape, and the first direction and the second direction intersect and are both perpendicular to the thickness direction of the media unit 21 . The second electrode unit 24 includes a plurality of electrode rings 25. The electrode rings 25 match the shape of the ventilation holes 22. The electrode rings 25 are rectangular rings. The electrode rings 25 are rectangular rings extending along the second direction. The electrode rings 25 surround the ventilation holes. On the outer peripheral side of the hole 22, all the electrode rings 25 are connected as one body. The plurality of fins 2 of the heat exchanger 10 are arranged along the first direction, an air flow channel is defined between adjacent fins 2, and the ventilation holes 22 are arranged opposite to the air flow channel.

The anti-frost module 200 in this embodiment is disposed on the outer surface of the heat exchanger 10, which can effectively prevent water molecules in the air from frosting on the surface of the heat exchanger 10, and can remove frost when it forms on the surface of the heat exchanger 10. frost effect, and there is no need for the air conditioner to change the working mode, ensuring the normal operation of the heat exchanger assembly 100, ensuring the heating effect of the air conditioner, and improving the overall performance of the air conditioner; and, the anti-frost module 200 is installed to the heat exchanger as a whole 10, it is convenient to install and manufacture the anti-frost module 200 and the heat exchanger 10, which can improve production efficiency and is also conducive to realizing large-scale production and manufacturing of the heat exchanger assembly 100. By setting the vent holes 22 in a long strip shape, the area of the vent holes 22 is increased, so that gas can enter the heat exchanger 10 from the vent holes 22 more easily, and the vent holes 22 are regularly arranged on the media unit 21. The gas can enter the heat exchanger 10 evenly through the ventilation holes 22, thereby ensuring the efficiency of heat exchange between the gas and the heat exchanger 10.

Referring to Figures 1-15, an air conditioner outdoor unit according to the second embodiment of the present application includes an outdoor casing, a heat exchanger assembly 100 and an outdoor fan. The outdoor casing is formed with an outdoor air inlet and an outdoor air outlet; the heat exchanger assembly 100 represents the heat exchanger assembly 100 according to the above-mentioned first aspect embodiment of the present application. The heat exchanger assembly 100 is disposed in the outdoor casing, and the outdoor fan is disposed in the outdoor casing.

When the outdoor unit of the air conditioner is working, the outdoor fan is suitable for driving the outdoor air to flow into the outdoor casing from the outdoor air inlet. The outdoor air flowing into the outdoor casing is driven to flow through the heat exchanger 10 to perform heat exchange with the heat exchanger 10, and the heat-exchanged air is exchanged with the heat exchanger 10. The air is blown from the outdoor air outlet.

According to the air conditioner outdoor unit according to the embodiment of the present application, the above-mentioned heat exchanger assembly 100 can prevent the surface of the heat exchanger 10 from frosting, ensuring the normal operation of the heat exchanger 10, ensuring the normal operation of the air conditioner outdoor unit, and ensuring the air conditioner. of normal operation.

Referring to Figure 1 and Figure 15, according to some embodiments of the present application, the side of the heat exchanger 10 opposite to the outdoor fan is the opposite wind side (refer to the heat exchanger 10 in Figures 2-3 (inside), the anti-frost structure 20 is located on the other side of the heat exchanger 10 except the windward side. The anti-frost structure 20 is provided on the other sides of the heat exchanger 10 except the windward side. When the outdoor airflow flows through the heat exchanger 10, the impact of the anti-frost structure 20 on the outdoor airflow can be reduced, ensuring that the outdoor air is in contact with the heat exchanger. 10. Improve the efficiency of heat exchange and ensure the working efficiency of the air conditioner outdoor unit.

Referring to Figures 1-15, according to some embodiments of the present application, the anti-frost structure 20 is located on the side of the heat exchanger 10 away from the outdoor fan (refer to the outside of the heat exchanger 10 in the drawings), which can prevent the heat exchanger from The side of 10 facing away from the outdoor fan is frosted to prevent the frost from spreading to the side close to the outdoor fan, preventing the heat exchanger 10 from being frosted and affecting the heat exchange efficiency of the heat exchanger 10, and ensuring the normal use of the heat exchanger 10 , to ensure the normal use of the outdoor air conditioner and to ensure the normal use of the air conditioner.

According to some embodiments of the present application, the air conditioning outdoor unit further includes a temperature sensor and a dew point sensor. The temperature sensor is provided on the outer surface of the heat exchanger 10. When the outer surface temperature of the heat exchanger 10 is not greater than the current corresponding dew point temperature, the plasma The plasma generator 3 works; when the outer surface temperature of the heat exchanger 10 is greater than the current corresponding dew point temperature, the plasma generator 3 stops working. By setting the temperature sensor and the dew point sensor, the plasma generator 3 can only work when the outer surface temperature of the heat exchanger 10 is not greater than the current corresponding dew point temperature, thereby effectively reducing the energy consumption of the air conditioner outdoor unit and reducing the energy consumption of the air conditioner. energy consumption and improve the overall performance of the air conditioner.

An air conditioner according to a third embodiment of the present application includes: an air conditioner outdoor unit according to the above-mentioned second embodiment of the present application. The air conditioner is a split air conditioner. For example, the air conditioner can be a split floor-standing air conditioner, or the air conditioner can be a split wall-mounted air conditioner. The air conditioner includes an air conditioner indoor unit and an air conditioner outdoor unit.

According to the air conditioning device of the embodiment of the present application, the above-mentioned air conditioning outdoor unit can ensure the normal operation of the air conditioning outdoor unit and the normal operation of the air conditioner.

An air conditioning indoor unit according to the fourth embodiment of the present application includes: the heat exchanger assembly 100 according to the above-mentioned first embodiment of the present application.

According to the air-conditioning indoor unit according to the embodiment of the present application, through the above-mentioned heat exchanger assembly 100, the surface of the heat exchanger 10 can be prevented from frosting, ensuring the normal operation of the heat exchanger 10, ensuring the normal operation of the air-conditioning indoor unit, and ensuring that the air conditioner of normal operation.

Referring to Figure 16, according to the anti-frost control method of the air conditioner according to the fifth embodiment of the present application, the air conditioner is based on the above-mentioned second embodiment of the present application. The anti-frost control method includes:

Detect the outer surface temperature and dew point temperature of the heat exchanger 10;

After confirming that the outer surface temperature of the heat exchanger 10 is not greater than the current corresponding dew point temperature, the plasma generator 3 is turned on and runs for the first preset time period t1. For example, the first preset time period t1 can be 5 minutes;

After confirming that the outer surface temperature of the heat exchanger 10 is greater than the current corresponding dew point temperature, the plasma generator 3 stops running for the second preset time period t2, and the second preset time period t2 is less than the first preset time period t1, for example, the second preset time period t2 can be 2 minutes.

When the air conditioner enters the heating mode, the control system of the air conditioner can start to detect the outer surface temperature and dew point temperature of the heat exchanger 10. When the outer surface temperature of the heat exchanger 10 is greater than the current corresponding dew point temperature, the air conditioner's control system The control system determines that there will be no frost on the surface of the heat exchanger 10, and the control system of the air conditioner does not control the opening of the plasma generator 3; when the outer surface temperature of the heat exchanger 10 is not greater than the current corresponding dew point temperature, the control system of the air conditioner Judging that the surface of the heat exchanger 10 will be frosted, the control system of the air conditioner controls the plasma generator 3 to turn on, controls the plasma generator 3 to run for a first preset time period t1, and starts recording the operating time of the plasma generator 3.

When the plasma generator 3 runs for the first preset time period t1, the control system of the air conditioner can detect the outer surface temperature and dew point temperature of the heat exchanger 10 again. If the outer surface temperature of the heat exchanger 10 is still not greater than the current corresponding dew point temperature, the control system of the air conditioner controls the plasma generator 3 to keep running, and controls the plasma generator 3 to run again for the first preset time period t1.

When the plasma generator 3 is running for the first preset time period t1, if the outer surface temperature of the heat exchanger 10 is greater than the current corresponding dew point temperature, the control system of the air conditioner determines that there will be no frost on the surface of the heat exchanger 10, and the air conditioner The control system controls the plasma generator 3 to stop running for a second preset time period t2, and records the time the plasma generator 3 stops running. When the duration of the plasma generator 3 stopping operation reaches the second preset duration t2, the control system of the air conditioner can detect the outer surface temperature and dew point temperature of the heat exchanger 10 again.

In this way, the intermittent operation of the plasma generator 3 can be realized while ensuring that the heat exchanger 10 is not frosted, and the continuous operation of the plasma generator 3 can be prevented from causing excessive energy consumption of the air conditioner or causing the frost-proof structure 20 to heat up. A large amount of accumulation can cause fires, reduce the energy consumption of the air conditioner, ensure the safety of the use of the air conditioner, and improve the overall performance of the air conditioner.

In the description of this application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axis" The orientation or positional relationship indicated by "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply the device or device referred to. Elements must have a specific orientation, be constructed and operate in a specific orientation and therefore are not to be construed as limitations on the application.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" or the like is intended to be incorporated into the description of the implementation. An example or example describes a specific feature, structure, material, or characteristic that is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present application have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principles and purposes of the present application. The scope of the application is defined by the claims and their equivalents.

Claims

A heat exchanger assembly, including:

Heat Exchanger;

An anti-frost structure is provided on the heat exchanger, and the anti-frost structure includes a plasma generator for generating plasma.
1. The heat exchanger assembly of claim 1, wherein the frost protection structure is adjacent an outer surface of the heat exchanger.
The heat exchanger assembly according to any one of claims 1-2, wherein the plasma generator has a first discharge end and a second discharge end disposed oppositely, the first discharge end being opposite to the third discharge end. The two discharge ends are closer to the outer surface of the heat exchanger, and the first discharge end can discharge into the air to generate plasma.
The heat exchanger assembly according to any one of claims 1 to 3, wherein the plasma generator includes an insulating dielectric layer and first electrode layers disposed on opposite sides of the insulating dielectric layer in the thickness direction and A second electrode layer, the first electrode layer is suitable for grounding, and the second electrode layer is suitable for connecting to a high-voltage power supply.
The heat exchanger assembly of claim 4, wherein the fins of the heat exchanger constitute the first electrode layer.
The heat exchanger assembly according to claim 4, wherein the fins of the heat exchanger closest to the outer surface of the heat exchanger are outer fins, and the outer fins constitute the first electrode layer .
The heat exchanger assembly of claim 6, wherein the insulating dielectric layer and the second electrode layer are located at an end of the outer fin close to the outer surface of the heat exchanger.
The heat exchanger assembly of claim 4, wherein the insulating dielectric layer is a thermally conductive layer.
The heat exchanger assembly of claim 4, wherein the insulating dielectric layer is a dielectric coating coated on the first electrode layer.
The heat exchanger assembly of claim 4, wherein the second electrode layer is a printed electrode layer printed on the insulating dielectric layer.
The heat exchanger assembly according to claim 4, wherein the anti-frost structure further includes an insulating protective layer covering an outer surface of the second electrode layer.
The heat exchanger assembly according to claim 11, wherein the insulating protective layer is an insulating coating coated on the outer surface of the second electrode layer.
The heat exchanger assembly according to claim 11, wherein the projection of the second electrode layer on the reference surface is located within the projection of the insulating protective layer on the reference surface, and the insulating protective layer is on the reference surface. The projection of is located within the projection of the insulating dielectric layer on the reference plane, and the reference plane is a plane perpendicular to the first electrode layer.
The heat exchanger assembly according to claim 13, wherein the width of the second electrode layer along the first direction is smaller than the width of the insulating dielectric layer along the first direction, and the width of the second electrode layer along the first direction is smaller than the width of the second electrode layer along the first direction. The two opposite ends in the first direction are respectively a first discharge end and a second discharge end. The end face of the first discharge end is the first end face, and the end face of the second discharge end is the second end face. The insulating protective layer The part covering the first end surface is a first protective part, and the part of the insulating protective layer covering the second end surface is a second protective part. The first protective part and the second protective part are At least one thickness is smaller than the first set thickness, so that at least one of the first discharge end and the second discharge end can discharge into the air to generate plasma.
The heat exchanger assembly according to claim 14, wherein the first discharge end is closer to the outer surface of the heat exchanger than the second discharge end, and the thickness of the first protective portion is smaller than that of the second discharge end. A set thickness is smaller than the thickness of the second protective part.
The heat exchanger assembly according to claim 15, wherein the thickness of the second protection part is greater than the second set thickness to block the second discharge end from discharging to the air to generate plasma, and the second The set thickness is greater than the first set thickness.
The heat exchanger assembly of claim 15, wherein the second protective portion has a thickness less than the first set thickness.
The heat exchanger assembly according to claim 14, wherein the thickness of the first protection part and the thickness of the second protection part are the same and both are less than the first set thickness.
The heat exchanger assembly according to claim 11, wherein in the thickness direction of the insulating dielectric layer, the surface of the second electrode layer facing away from the insulating dielectric layer is the electrode main surface, and the insulating protective layer The part covering the main surface of the electrode is the main protective part, and the thickness of the main protective part varies.
The heat exchanger assembly of claim 19, wherein the main guard portion includes a first guard zone and a second guard zone, the first guard zone having a thickness greater than the second guard zone.
The heat exchanger assembly of claim 20, wherein the thickness of the first protection zone is equal or gradual; and/or the thickness of the second protection zone is equal or gradual.
The heat exchanger assembly according to claim 20, wherein the main protection part further includes a third protection zone, the thickness of the third protection zone is no greater than the thickness of the first protection zone and no less than the thickness of the third protection zone. 2. The thickness of the protective zone.
22. The heat exchanger assembly of claim 22, wherein the third guard zone has a graduated thickness.
The heat exchanger assembly of claim 22, wherein the third guard zone is connected between the first guard zone and the second guard zone.
The heat exchanger assembly of claim 24, wherein the thickness of the third protection zone gradually decreases in a direction from the first protection zone to the second protection zone.
The heat exchanger assembly according to claim 20, wherein a groove is formed on a side of the main protection part away from the second electrode layer, and the bottom wall of the groove constitutes the second protection area, The portion of the main protection portion located on the outer peripheral side of the groove constitutes the first protection area.
The heat exchanger assembly of claim 26, wherein the main protection section further includes a third protection area connected between the first protection area and the second protection area, In the direction from the first protection area to the second protection area, the thickness of the third protection area gradually decreases, and the peripheral wall of the groove constitutes the third protection area.
The heat exchanger assembly according to claim 26, wherein the insulating dielectric layer is in a strip shape, the second electrode layer is in a strip shape extending along the length direction of the insulating dielectric layer, and the groove is There are a plurality of grooves arranged at intervals along the length direction of the main protective part.
The heat exchanger assembly according to claim 19, wherein the thickness of the main protection part gradually increases or decreases in a direction from one side of the main protection part to the other side of the main protection part. .
The heat exchanger assembly according to claim 19, wherein the insulating dielectric layer is in a strip shape, the second electrode layer is in a strip shape extending along the length direction of the insulating dielectric layer, and the second electrode layer is in a strip shape. The width of the electrode layer is smaller than the width of the insulating dielectric layer. The two opposite end surfaces in the width direction of the second electrode layer are the first end surface and the second end surface respectively. The insulating protective layer covers the first end surface. The part of the insulating protective layer covering the second end surface is the first protective part, and the part of the insulating protective layer covering the second end surface is the second protective part. The thickness of the first protective part and the second protective part is both greater than that of the main protective part. the minimum thickness.
The heat exchanger assembly according to any one of claims 19 to 30, wherein the fins of the heat exchanger constitute the first electrode layer, and the insulating dielectric layer is formed along the length direction of the fins. An extended strip shape, the second electrode layer is in a strip shape extending along the length direction of the insulating dielectric layer.
The heat exchanger assembly according to any one of claims 19 to 30, wherein the fins of the heat exchanger constitute the first electrode layer, the insulating dielectric layer, the second electrode layer and the The insulating protective layer is provided at the air inlet end of the fin.
The heat exchanger assembly according to claim 1, wherein the anti-frost structure includes an anti-frost module disposed on an outer surface of the heat exchanger, the anti-frost module includes a dielectric unit and a second electrode unit, The dielectric unit is located between the first electrode unit and the second electrode unit to form a plasma generator. The first electrode unit is suitable for grounding, and the second electrode unit is suitable for connecting to a high-voltage power supply.
The heat exchanger assembly according to claim 33, wherein the dielectric unit is formed in a plate shape, a side surface of the dielectric unit facing away from the heat exchanger is a mounting surface, and the second electrode unit is a mounting surface. electrode layer on the mounting surface.
The heat exchanger assembly according to claim 34, wherein the second electrode unit is a printed electrode layer printed on the mounting surface.
The heat exchanger assembly according to claim 33, wherein the dielectric unit is an integrally formed structure; and/or the second electrode unit is an integrally formed structure.
The heat exchanger assembly according to claim 33, wherein the heat exchanger has an air inlet side and an air outlet side arranged oppositely, and the anti-frost module is provided on the air inlet side or the air outlet side, and the The anti-frost module is formed with a ventilation structure.
The heat exchanger assembly according to claim 37, wherein the anti-frost module covers the entire air inlet side or air outlet side of the heat exchanger.
The heat exchanger assembly according to claim 37, wherein the dielectric unit is formed in a plate shape, a side surface of the dielectric unit facing away from the heat exchanger is a mounting surface, and the second electrode unit is a mounting surface. The electrode layer on the mounting surface;

Wherein, the ventilation structure includes a plurality of spaced ventilation holes formed on the dielectric unit, and at least part of the second electrode unit surrounds the outer peripheral side of the ventilation holes.
The heat exchanger assembly according to claim 39, wherein the second electrode unit includes a plurality of electrode rings, the number of the electrode rings is the same as the number of the ventilation holes and corresponds one to one, and each of the electrodes The ring surrounds the outer peripheral side of the corresponding ventilation hole, and all the electrode rings are connected as one body.
The heat exchanger assembly of claim 40, wherein the electrode ring is a circular ring.
The heat exchanger assembly of claim 39, wherein a plurality of the ventilation holes are arranged in an array.
The heat exchanger assembly according to claim 39, wherein a plurality of the ventilation holes are spaced apart along a first direction, the ventilation holes extend in a long strip shape along a second direction, and the first direction is connected to the first direction. The two directions intersect and are perpendicular to the thickness direction of the media unit.
The heat exchanger assembly according to claim 43, wherein a plurality of the fins of the heat exchanger are arranged along the first direction, and air flow channels are defined between adjacent fins, and the The ventilation holes are arranged opposite to the air flow channel.
The heat exchanger assembly according to claim 38, wherein the other side of the heat exchanger except the air inlet side and the air outlet side is a non-wind side, and the anti-frost module has a use state and a non-wind side. status of use;

Wherein, in the use state, the anti-frost module covers the air inlet side or the air outlet side; in the non-use state, the anti-frost module can be stored on the non-wind side.
The heat exchanger assembly according to claim 45, wherein the anti-frost module is a flexible structure, the non-wind side is provided with a reel, the anti-frost module has a fixed end and a free end arranged oppositely, the fixed end is The end is connected to the reel;

Wherein, in the non-use state, the anti-frost module is wound on the reel.
The heat exchanger assembly according to any one of claims 33 to 46, wherein the anti-frost module is detachably connected to the heat exchanger.
An air conditioner outdoor unit, which includes:

The outdoor casing is formed with an outdoor air inlet and an outdoor air outlet;

The heat exchanger assembly according to any one of claims 1-47, located in the outdoor casing;

An outdoor fan is located in the outdoor casing.
The air-conditioning outdoor unit according to claim 48, wherein the side of the heat exchanger opposite to the outdoor fan is the facing side, and the anti-frost structure is located on the side of the heat exchanger except for the facing side. side of the other side.
The air conditioning outdoor unit according to claim 49, wherein the anti-frost structure is located on a side of the heat exchanger away from the outdoor fan.
The air conditioning outdoor unit according to claim 48, further comprising: a temperature sensor and a dew point sensor provided on the outer surface of the heat exchanger, when the outer surface temperature of the heat exchanger is not greater than the current corresponding When the dew point temperature is higher, the plasma generator works; when the outer surface temperature of the heat exchanger is greater than the current corresponding dew point temperature, the plasma generator stops working.
An air conditioning indoor unit, comprising: the heat exchanger assembly according to any one of claims 1-47.
An air conditioner, comprising: the air conditioning outdoor unit according to any one of claims 48 to 52 and/or the air conditioning indoor unit according to claim 52.
An anti-frost control method for an air conditioner, wherein the air conditioner is the air conditioner according to claim 53, and the anti-frost control method includes:

Detect the outer surface temperature and dew point temperature of the heat exchanger;

After confirming that the outer surface temperature of the heat exchanger is not greater than the current corresponding dew point temperature, the plasma generator is turned on and runs for a first preset time;

After confirming that the outer surface temperature of the heat exchanger is greater than the current corresponding dew point temperature, the plasma generator stops operating for a second preset time period, and the second preset time period is less than the first preset time period.