Heat exchanger, air conditioner and control method of air conditioner

Abstract

The embodiment of the present application provides a heat exchanger, an air conditioner and a control method of the air conditioner, the heat exchanger comprises a compressor pipeline, a bottom disc pipeline and a pipeline separation assembly, the pipeline separation assembly comprises a first separation piece and a second separation piece which can be separated and contacted, heat generated in the process of discharging the compressor is led out by using the compressor pipeline, the discharge side temperature and the discharge pressure of the compressor are reduced, the separation and contact of the first separation piece and the second separation piece are controlled, heat of the compressor pipeline can be transmitted to the water storage tank of the bottom disc through the bottom disc pipeline, and thus the effect of preventing the water in the bottom disc from freezing without consuming electric energy can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a heat exchanger, an air conditioner and a control method for the air conditioner. Background Art

[0002] During operation, existing compressors exhaust air on the exhaust side. During the exhaust process, the temperature is often very high and can reach hundreds of degrees Celsius. This heat can easily cause the compressor winding temperature to be too high, thereby increasing the risk of shutdown. In addition, excessively high exhaust temperature and pressure will also increase the energy consumption of the entire system, thereby affecting the working efficiency of the compressor and ultimately reducing the cooling or heating efficiency of the compressor. Summary of the Invention

[0003] The present invention provides a heat exchanger, an air conditioner and a control method for the air conditioner, aiming to solve the problem that the working efficiency of the existing compressor is affected by the excessively high exhaust temperature of the exhaust gas meter.

[0004] An embodiment of the present invention provides a heat exchanger for an air conditioner, the air conditioner including a compressor and a chassis, the heat exchanger including a compressor pipe having one end arranged on the exhaust side of the compressor and a chassis pipe having one end arranged on the water storage tank of the chassis, the heat exchanger also including a pipe separation assembly, the pipe separation assembly including a first separation member and a second separation member that can be separated and contacted, the other end of the compressor pipe being connected to the first separation member, and the other end of the chassis pipe being connected to the second separation member, and heat exchange between the compressor pipe and the chassis pipe being achieved when the first separation member is in contact with the second separation member.

[0005] Specifically, the pipeline separation assembly further includes a driving member, and the driving member is used to drive the separation and contact of the first separation member and the second separation member.

[0006] Specifically, the driving component includes a first electromagnetic component and a second electromagnetic component, the first electromagnetic component is arranged in the first separating component, and the second electromagnetic component is arranged in the second separating component. The first electromagnetic component and / or the second electromagnetic component form an attractive or repulsive magnetic field force according to the direction of the input current to make the first separating component approach or move away from the second separating component.

[0007] Specifically, one of the first separating member and the second separating member is provided with a guide hole, and the other of the first separating member and the second separating member is provided with a guide rod, and the guide rod is slidably connected to the guide hole.

[0008] Specifically, the first separation element includes a first heat exchange element and a first insulation element covering the first heat exchange element, and the second separation element includes a second heat exchange element and a second insulation element covering the second heat exchange element. The first heat exchange element and the second heat exchange element are both made of heat conductive materials.

[0009] An embodiment of the present invention further provides an air conditioner, comprising a compressor and a chassis, and also comprising the heat exchanger as described above.

[0010] Specifically, an electric heating component is provided on the chassis for heating the accumulated water in the water storage tank.

[0011] Specifically, a temperature sensor is also provided on the chassis for detecting the water temperature of the water tank.

[0012] An embodiment of the present invention further provides a method for controlling an air conditioner, comprising:

[0013] When receiving a cooling mode instruction, obtaining the outdoor temperature, and controlling the separation or contact of the first separation element and the second separation element according to the outdoor temperature;

[0014] When a heating mode instruction is received, the first separating member and the second separating member are controlled to contact with each other.

[0015] Specifically, controlling the separation or contact of the first separation element and the second separation element according to the outdoor temperature includes:

[0016] Determining whether the outdoor temperature is greater than a first temperature threshold;

[0017] If the outdoor temperature is greater than a first temperature threshold, controlling the first separation element to contact the second separation element;

[0018] If the outdoor temperature is less than or equal to a first temperature threshold, the first separating element and the second separating element are controlled to separate.

[0019] Specifically, when receiving the instruction of the heating mode, controlling the first separation member to contact the second separation member includes:

[0020] Acquire a drainage mode of the air conditioner; wherein the drainage mode of the air conditioner includes a non-external drainage mode and an external drainage mode;

[0021] If the drainage mode of the air conditioner is a non-external drainage mode, obtaining the water temperature of the water storage tank and controlling the on and off of the electric heating component according to the water temperature;

[0022] If the drainage mode of the air conditioner is the external drainage mode, the outdoor temperature and the duration of the compressor in the current operating state are obtained, and the turning on and off of the electric heating component is controlled according to the outdoor temperature and the duration.

[0023] Specifically, controlling the turning on and off of the electric heating component according to the water temperature includes:

[0024] If the water temperature is less than or equal to a second temperature threshold, starting the electric heating component;

[0025] If the water temperature is greater than or equal to a third temperature threshold, turning off the electric heating component; wherein the third temperature threshold is greater than the second temperature threshold;

[0026] If the water temperature is greater than the second temperature threshold and less than the third temperature threshold, the current state of the electric heating component is maintained.

[0027] Specifically, obtaining the outdoor temperature and the duration of the compressor in the current operating state, and controlling the turning on and off of the electric heating component according to the outdoor temperature and the duration, includes:

[0028] If the outdoor temperature is greater than or equal to a fourth temperature threshold, turning off the electric heating component;

[0029] If the outdoor temperature is less than or equal to a fifth temperature threshold, the electric heating component is started; wherein the fourth temperature threshold is greater than the fifth temperature threshold;

[0030] If the outdoor temperature is greater than the fifth temperature threshold and less than the fourth temperature threshold, obtaining the duration and determining whether the duration is greater than the time threshold;

[0031] If the duration is greater than the time threshold, starting the electric heating component;

[0032] If the duration is less than or equal to the time threshold, the electric heating component is turned off.

[0033] An embodiment of the present invention provides a heat exchanger, an air conditioner, and a control method for the air conditioner. The heat exchanger includes a compressor pipe, a chassis pipe, and a pipe separation assembly. The pipe separation assembly includes a first separation member and a second separation member that can be separated and contacted. This embodiment uses the compressor pipe to draw out the heat generated during the compressor exhaust process, thereby reducing the exhaust side temperature and exhaust pressure of the compressor. By controlling the separation and contact of the first separation member and the second separation member, the heat of the compressor pipe can be controlled to be transferred to the water storage tank of the chassis through the chassis pipe. In this way, the chassis can be prevented from accumulating water and freezing without consuming electrical energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 The internal structure of an air conditioner provided by the embodiment of the present invention Figure 1 ;

[0036] Figure 2 The internal structure of an air conditioner provided by the embodiment of the present invention Figure 2 ;

[0037] Figure 3 A schematic diagram of a circulation of an air conditioner provided by an embodiment of the present invention;

[0038] Figure 4 A schematic structural diagram of a pipeline separation assembly provided in an embodiment of the present invention;

[0039] Figure 5 An exploded view of a pipeline separation assembly provided in an embodiment of the present invention;

[0040] Figure 6 A schematic diagram of the structure of a compressor pipeline provided by an embodiment of the present invention;

[0041] Figure 7 A schematic diagram of the structure of the chassis pipeline provided by an embodiment of the present invention;

[0042] Figure 8 A schematic flow chart of a method for controlling an air conditioner provided by an embodiment of the present invention;

[0043] Figure 9 A schematic diagram of a sub-flow diagram of a method for controlling an air conditioner provided by an embodiment of the present invention;

[0044] Figure 10 A schematic diagram of another sub-flow of a method for controlling an air conditioner provided by an embodiment of the present invention;

[0045] Figure 11 A schematic diagram of another sub-flow of a method for controlling an air conditioner provided by an embodiment of the present invention;

[0046] Figure 12 This is another sub-flow diagram of a method for controlling an air conditioner provided by an embodiment of the present invention.

[0047] Description of the symbols in the figure:

[0048] 1. Heat exchanger; 11. Compressor pipe; 12. Chassis pipe; 13. Pipe separation assembly; 131. First separation element; 1311. Guide hole; 1312. First heat exchange element; 1313. First insulation element; 132. Second separation element; 1321. Guide rod; 1322. Second heat exchange element; 1323. Second insulation element; 133. Driving element; 1331. First electromagnetic element; 1332. Second electromagnetic element.

[0049] 2. Air conditioner; 21. Compressor; 22. Chassis; 221. Water tank; 23. Electric heating component. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0051] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0052] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in the specification and appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0053] It should be further understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0054] See also Figure 1-4An embodiment of the present invention provides a heat exchanger 1, which is applied to an air conditioner 2. The air conditioner 2 includes a compressor 21 and a chassis 22. The heat exchanger 1 includes a compressor pipe 11 with one end arranged on the exhaust side of the compressor 21 and a chassis pipe 12 with one end arranged on a water storage tank 221 of the chassis 22. The heat exchanger 1 also includes a pipe separation component 13. The pipe separation component 13 includes a first separation component 131 and a second separation component 132 that can be separated and contacted. The other end of the compressor pipe 11 is connected to the first separation component 131, and the other end of the chassis pipe 12 is connected to the second separation component 132. When the first separation component 131 and the second separation component 132 are in contact, heat exchange between the compressor pipe 11 and the chassis pipe 12 can be achieved.

[0055] In this embodiment, the heat exchanger 1 includes a compressor pipe 11, a chassis pipe 12 and a pipe separation assembly 13. One end of the compressor pipe 11 is connected to the compressor 21 for drawing out the high-temperature gas generated during the exhaust process of the compressor 21. One end of the chassis pipe 12 is connected to the water storage tank 221 of the chassis 22. The water temperature in the water storage tank 221 is relatively low and is suitable for absorbing heat. The pipe separation assembly 13 includes a first separation component 131 and a second separation component 132, which are respectively connected to the other end of the compressor pipe 11 and the chassis pipe 12. When the first separator 131 is separated from the second separator 132, only the compressor pipe 11 is used, that is, the exhaust side of the compressor 21 can only transfer heat to the first separator 131 through the compressor pipe 11, but cannot transfer it to the second separator 132. When the first separator 131 and the second separator 132 are in contact, a heat exchange interface is formed between them. The high-temperature gas in the compressor pipe 11 releases heat to the second separator 132 through the first separator 131, and the chassis pipe 12 absorbs this heat through the second separator 132, thereby achieving heat exchange between the compressor pipe 11 and the chassis pipe 12. This embodiment uses the compressor pipe 11 to draw out the heat generated during the compressor exhaust process, thereby reducing the exhaust side temperature and exhaust pressure of the compressor. By controlling the contact between the first separator and the second separator, the heat of the compressor pipe 11 is transferred to the water storage tank 221 of the chassis 22 through the chassis pipe 12. This can prevent water accumulation and freezing in the chassis without consuming electrical energy.

[0056] In specific implementation, the compressor pipe 11 and the chassis pipe 12 can be a round pipe or a flat pipe, the inside of which is vacuumed, and can be provided with or without a liquid wick, and then a heat transfer medium is poured into the inside; the compressor pipe 11 and the chassis pipe 12 can be made of copper pipe, aluminum pipe, iron pipe or glass pipe, and copper pipe is preferred for better heat transfer; the compressor pipe 11 and the chassis pipe 12 can be provided in a ring shape, a broken line shape or a straight strip shape, for details, please refer to Figure 6 and Figure 7 , Figure 6 The compressor pipe 11 is arranged in an annular shape. Figure 7 The chassis pipe 12 is configured as a broken line. The compressor pipe 11 and the chassis pipe 12 can be configured as needed, and the number of the configured pipes ranges from 1 to 10.

[0057] In addition, the compressor pipe 11 itself is a circulation pipe, and the chassis pipe 12 itself is also a circulation pipe. The compressor pipe 11 and the chassis pipe 12 both include an evaporation section and a condensation section. The condensation section of the compressor pipe 11 is connected to the first separation element 131, and the evaporation section of the compressor pipe 11 is arranged inside the compressor. The condensation section of the chassis pipe 12 is arranged in the water storage tank 221, and the evaporation section of the chassis pipe 12 is connected to the second separation element 132. Figure 6 The annular part in the middle is the evaporation section of the compressor pipe 11. Figure 6 The middle straight strip portion is the condensation section of the compressor pipe 11, and insulation parts are set at some positions of the condensation section of the compressor pipe 11 to prevent heat dissipation. Figure 7 The straight strip part parallel to the ground is the condensation section of the chassis pipe 12. Figure 7 The straight strip portion perpendicular to the ground is the evaporation section of the chassis pipe 12, and a heat preservation member is provided at a part of the evaporation section of the chassis pipe 12 to prevent heat dissipation.

[0058] Specifically, such as Figure 5 As shown, the pipeline separation assembly 13 further includes a driving member 133 , which is used to drive the separation and contact of the first separation member 131 and the second separation member 132 .

[0059] In this embodiment, by setting a driving member 133, the automatic operation of the pipeline separation component 13 can be realized. The driving member 133 can quickly and accurately drive the first separation component 131 and the second separation component 132 to separate or contact, which makes the pipeline separation component 13 have higher flexibility and adaptability when facing different working conditions.

[0060] Specifically, such as Figure 5 As shown, the driving member 133 includes a first electromagnetic member 1331 and a second electromagnetic member 1332. The first electromagnetic member 1331 is arranged in the first separating member 131, and the second electromagnetic member 1332 is arranged in the second separating member 132. The first electromagnetic member 1331 and / or the second electromagnetic member 1332 form an attractive or repulsive magnetic field force according to the direction of the input current to make the first separating member 131 and the second separating member 132 approach or move away.

[0061] In this embodiment, by respectively arranging electromagnetic components in the two separating components, when the direction of the current input to one of the electromagnetic components changes, the direction of the magnetic field generated between the first electromagnetic component 1331 and the second electromagnetic component 1332 will also change, so that the magnetic fields between the two electromagnetic components attract or repel each other. This attractive or repulsive magnetic field force will act on the first separating component 131 and the second separating component 132, causing the two separating components to move closer or farther away. This driving method realizes the separation and contact of the first separating component 131 and the second separating component 132 through the magnetic field force, avoiding the direct contact and friction in the traditional mechanical driving method, and helping to ensure the stability and reliability of the pipeline separation component during the separation and contact process.

[0062] Specifically, such as Figure 5 As shown, one of the first separating member 131 and the second separating member 132 is provided with a guide hole 1311 , and the other of the first separating member 131 and the second separating member 132 is provided with a guide rod 1321 , and the guide rod 1321 is slidably connected to the guide hole 1311 .

[0063] In this embodiment, in order to make the first separating member 131 and the second separating member 132 separate and contact more smoothly, a guide hole 1311 is provided in one of the first separating member 131 and the second separating member 132, and a guide rod 1321 is provided in the other of the first separating member 131 and the second separating member 132. The guide rod 1321 is inserted into the guide hole 1311, and a limiting member, such as a positioning convex ring or a nut, is provided on the top of the guide rod 1321, so as to realize the connection between the two separating members and limit the maximum distance that the two separating members can be separated. When the two separating members are separated or contacted, they can slide along the guide rod 1321, thereby controlling the precise separation or contact of the two separating members and avoiding misalignment or excessive separation. In specific implementation, refer to Figure 4 and 5 As shown, a plurality of guide holes 1311 are provided on the first separating member 131, and the same number of guide rods 1321 are provided at corresponding positions of the second separating member 132 toward the first separating member 131. When the guide rods 1321 are inserted into the guide holes 1311, the length of the guide rods 1321 is greater than the depth of the guide holes 1311, and the guide rods 1321 protrude from the guide holes 1311 by a predetermined distance. A limiting member is provided at one end of the protrusion, and the separation or contact of the two separating members can be achieved by sliding a predetermined distance.

[0064] During specific implementation, the number of guide rods 1321 and guide holes 1311 can be set according to the specific scenario. If a single guide rod 1321 and a single guide hole 1311 are set, they can be set in the central area of ​​the first separating member 131 and the second separating member 132. If multiple guide rods 1321 and multiple guide holes 1311 are set, they can be set in the surrounding areas of the first separating member 131 and the second separating member 132, so that the sliding process is more stable.

[0065] Specifically, such as Figure 5 As shown, the first separation component 131 includes a first heat exchange component 1312 and a first thermal insulation component 1313 covering the first heat exchange component 1312, and the second separation component 132 includes a second heat exchange component 1322 and a second thermal insulation component 1323 covering the second heat exchange component 1322. The first heat exchange component 1312 and the second heat exchange component 1322 are both made of heat-conducting materials.

[0066] In this embodiment, heat in the compressor pipe 11 is transferred through the first heat exchange element 1312 and the second heat exchange element 1322. Therefore, the first heat exchange element 1312 and the second heat exchange element 1322 are preferably configured as heat-conductive materials to facilitate heat transfer. Furthermore, to ensure maximum heat transfer, a first heat-insulating element 1313 is disposed outside the first heat exchange element 1312, and a second heat-insulating element 1323 is disposed outside the second heat exchange element 1322. When heat needs to be transferred to the water storage tank 221 of the chassis 22, a corresponding current is input to the two electromagnetic elements, generating a mutually attractive magnetic force to achieve contact between the two heat exchange elements. The contacting surfaces of the two heat exchange elements are smooth surfaces. Under the action of the magnetic force, the thermal resistance is very low when in close contact. Furthermore, the first heat-insulating element 1313 and the second heat-insulating element 1323 are both uncovered box-shaped structures. The two heat exchange elements are embedded in this boxed structure, and the two heat exchange elements exchange heat through the uncovered side. The insulation materials of the first insulation member 1313 and the second insulation member 1323 may be foam rubber or foam with a thickness of 3-20 mm, thereby effectively preventing heat loss during the transfer process.

[0067] like Figure 1-3 As shown, an embodiment of the present invention further provides an air conditioner 2, comprising a compressor 21 and a chassis 22, and also comprising the heat exchanger 1 as described above.

[0068] In this embodiment, by providing a heat exchanger 1, the heat generated by the compressor 21 during the exhaust process can be drawn out and directed to the chassis 22, thereby preventing the accumulated water in the water tank 221 in the chassis 22 from freezing. In this way, not only can the exhaust pressure of the compressor 21 be reduced, but it is also beneficial to discharge the accumulated water in the water tank 221.

[0069] Specifically, such as Figure 2-3 As shown, an electric heating component 23 is provided on the chassis 22 for heating the accumulated water in the water storage tank 221 .

[0070] In this embodiment, in order to prevent the temperature inside the air conditioner from dropping when the compressor 21 stops or the air conditioner is in low-temperature cooling mode, and the accumulated water in the water tank 221 in the chassis 22 from freezing, an electric heating component 23 is additionally provided on the chassis 22. When the heat on the exhaust side of the compressor is insufficient and the heat exchanger 1 is still unable to melt the accumulated water in the water tank 221 after heat exchange, the electric heating component 23 can be directly turned on to heat the accumulated water in the water tank 221, thereby effectively avoiding the problem of accumulated water freezing.

[0071] Specifically, a temperature sensor is further provided on the chassis 22 for detecting the water temperature of the water tank 221 .

[0072] In this embodiment, to prevent the water temperature in the water tank 221 from freezing due to excessively low water temperature, the water temperature in the water tank 221 must be monitored constantly so that the electric heating assembly 23 or the heat exchanger 1 can promptly raise the water temperature. Therefore, a temperature sensor is provided on the chassis 22, preferably in the water tank 221. The temperature sensor monitors the water temperature in the water tank 221 in real time. If the water temperature in the water tank 221 drops to a predetermined value, the heat exchanger 1 or the electric heating assembly 23 is directly activated. The predetermined value can be set based on the specific implementation scenario.

[0073] like Figure 8 As shown, the embodiment of the present invention further provides a method for controlling an air conditioner, comprising steps S10-S20:

[0074] S10, when receiving a cooling mode instruction, obtaining the outdoor temperature, and controlling the separation or contact of the first separation element 131 and the second separation element 132 according to the outdoor temperature;

[0075] S20 . When a heating mode instruction is received, the first separating member 131 and the second separating member 132 are controlled to contact with each other.

[0076] In this step, the air conditioner has two operating modes, namely cooling mode and heating mode. In different operating modes, the working state of the first separator 131 and the second separator 132 in contact is different. This is because when the first separator 131 and the second separator 132 are in contact, they can draw heat from the compressor 21 and heat the water in the water storage tank 221. The heat transfer process is as follows: the heat from the exhaust side of the compressor 21 is transferred to the first separator 131 through the compressor pipe 11, the first separator 131 transfers it to the second separator 132 through the contact surface, and the second separator 132 transfers it to the water storage tank 221 through the chassis pipe 12. When the first separator 131 and the second separator 132 are in contact, they can draw heat from the compressor 21, thereby reducing the compressor exhaust temperature and the exhaust pressure. Therefore, it is necessary to determine whether the air conditioner needs to draw heat from the compressor 21 to the water storage tank 221 in the current operating mode. If so, the two separators are driven to contact by the driving member 133. If not, the two separators are driven to separate by the driving member 133.

[0077] In one embodiment, if Figure 9 As shown, S10 includes:

[0078] S11, determining whether the outdoor temperature is greater than a first temperature threshold;

[0079] S12: If the outdoor temperature is greater than a first temperature threshold, controlling the first separation element 131 and the second separation element 132 to contact each other;

[0080] S13 : If the outdoor temperature is less than or equal to a first temperature threshold, control the first separation element 131 and the second separation element 132 to separate.

[0081] In this embodiment, in the cooling mode, it is also necessary to judge based on the outdoor temperature in order to more accurately control the separation and contact of the first separation member 131 and the second separation member 132. In specific implementation, the first temperature threshold is the separation temperature value of the first separation member 131 and the second separation member 132, which is usually set to 35-50°C.

[0082] When the outdoor temperature is less than or equal to the first temperature threshold, the cooling load is not high. If the water in the water tank 221 is heated, the effect of the condenser using the accumulated water in the water tank for water cooling and heat exchange will be reduced. Therefore, at this stage, there is no need to direct the heat of the compressor 21 to the water tank 221, and the first separator 131 and the second separator 132 need to be separated. At this time, currents in opposite directions are input to the first electromagnetic component 1331 and the second electromagnetic component 1332, so that the first electromagnetic component 1331 and the second electromagnetic component 1332 generate mutually repulsive magnetic forces, thereby separating the first separator 131 and the second separator 132 through the mutually repulsive electromagnetic force, and the separation gap reaches any value between 5-50mm. At this time, the first separator 131 cannot transfer heat to the second separator 132, thereby blocking the exhaust side of the compressor 21 from releasing heat to the water tank 221.

[0083] When the outdoor temperature is greater than the first temperature threshold, the cooling load is high, and the exhaust temperature of compressor 21 increases, which can easily lead to overload and compressor 21 shutdown. In this case, the exhaust temperature of compressor 21 needs to be lowered. Specifically, the first separator 131 and the second separator 132 are brought into contact. At this time, the first electromagnetic element 1331 and the second electromagnetic element 1332 are input with the same direction of current, causing the first electromagnetic element 1331 and the second electromagnetic element 1332 to generate a magnetic force that attracts each other and tightly attracts the first separator 131 and the second separator 132 together, thus achieving contact. At this time, heat from the compressor pipe 11 is transferred to the second separator 132 through the first separator 131, thereby heating the chassis pipe 12 and transferring the heat to the water storage tank 221. It should be noted that in this environment, there may be no water in the water storage tank 221, but there is wind passing through the chassis 22. Therefore, after the heat from the exhaust of compressor 21 is transferred to the chassis pipe 12 through a series of components, the chassis pipe 12 dissipates heat through air cooling, thereby lowering the exhaust temperature of compressor 21.

[0084] When the air conditioner is unable to dissipate heat, it will not work after the exhaust temperature of the compressor 21 reaches above 54°C. Therefore, when using an air conditioner with air cooling, the outdoor ambient temperature for normal refrigeration operation can be increased to about 60°C, thereby improving the high temperature resistance of the compressor 21, avoiding shutdown due to excessive exhaust temperature, and achieving the purpose of increased refrigeration.

[0085] In one embodiment, if Figure 10 As shown, S20 includes:

[0086] S21, obtaining the drainage mode of the air conditioner 2; wherein the drainage mode of the air conditioner includes a non-external drainage mode and an external drainage mode;

[0087] S22: If the drainage mode of the air conditioner 2 is the non-external drainage mode, obtain the water temperature of the water storage tank 221 and control the on and off of the electric heating component 23 according to the water temperature;

[0088] S23. If the drainage mode of the air conditioner 2 is the external drainage mode, the outdoor temperature and the duration of the compressor 21 in the current operating state are obtained, and the turning on and off of the electric heating component 23 is controlled according to the outdoor temperature and the duration.

[0089] In this embodiment, in the heating mode, it is also necessary to obtain the drainage mode of the air conditioner 2, and determine whether to turn on the electric heating component 23 according to the drainage mode and the corresponding start-up conditions to heat the accumulated water in the water storage tank 221.

[0090] In one embodiment, if Figure 11 As shown, S22 includes:

[0091] S221: If the water temperature is less than or equal to a second temperature threshold, start the electric heating component 23;

[0092] S222: If the water temperature is greater than or equal to a third temperature threshold, turning off the electric heating component 23; wherein the third temperature threshold is greater than the second temperature threshold;

[0093] S223: If the water temperature is greater than the second temperature threshold and less than the third temperature threshold, maintain the current state of the electric heating component 23.

[0094] This embodiment shows the on and off conditions of the electric heating component 23 when the drainage mode is a non-external drainage mode, wherein the second temperature threshold is the on temperature of the electric heating component 23, and the third temperature threshold is the off temperature of the electric heating component 23. The on temperature and off temperature of the electric heating component 23 can be set in advance. The on temperature of the electric heating component 23 can be set to 0-10°C, and the off temperature of the electric heating component 23 can be set to 2-15°C. When the air conditioner 2 is in the non-external drainage mode (i.e., unable to drain outdoors), water accumulates in the water tank 221 for a long time. By detecting the water temperature of the accumulated water and comparing the current water temperature with the second and third temperature thresholds, if the water temperature is less than or equal to the second temperature threshold, the electric heating component 23 is turned on and energized. At this time, the electric heating component 23 generates heat and, together with the heat exchanger 1, raises the water temperature in the water tank 221 to above 0°C, preventing the accumulated water from freezing. If the water temperature is greater than or equal to the third temperature threshold, the electric heating component 23 is turned off and powered off. At this time, only the heat exchanger 1 is used to maintain the water temperature in the water tank 221, saving energy. If the water temperature is greater than the second temperature threshold and less than the third temperature threshold, the current state of the electric heating component 23 is maintained, i.e., if the electric heating component 23 was previously energized, it remains energized; if it was previously energized, it remains energized. In this embodiment, the electric heating assembly 23 is turned on in real time, thereby achieving a continuous and uninterrupted heat source for the chassis 22 and maximizing the energy-saving effect of ice melting on the chassis.

[0095] In one embodiment, if Figure 12 As shown, S23 includes:

[0096] S231, if the outdoor temperature is greater than or equal to a fourth temperature threshold, turning off the electric heating component 23;

[0097] S232: If the outdoor temperature is less than or equal to a fifth temperature threshold, start the electric heating component 23; wherein the fourth temperature threshold is greater than the fifth temperature threshold;

[0098] S233: If the outdoor temperature is greater than the fifth temperature threshold and less than the fourth temperature threshold, obtain the duration and determine whether the duration is greater than the time threshold;

[0099] S234: If the duration is greater than the time threshold, start the electric heating component 23;

[0100] S235 : If the duration is less than or equal to the time threshold, turn off the electric heating component 23 .

[0101] This embodiment shows the on and off conditions of the electric heating component 23 when the drainage mode is the external drainage mode, wherein the fourth temperature threshold value can be any value between 0 and 10°C, the fifth temperature threshold value is the off temperature of the electric heating component 23, the time threshold value is the upper limit of the compressor downtime, the off temperature of the electric heating component 23 and the upper limit of the compressor downtime can be set in advance, the off temperature of the electric heating component 23 can be set to any value between -15 and -1°C, and the upper limit of the compressor downtime can be set to any value between 15 and 120 minutes.

[0102] When the drainage mode of the air conditioner 2 is the external drainage mode (i.e., it can be discharged outdoors), there may not be much water in the water storage tank 221. At this time, the temperature sensor cannot effectively detect the water temperature. The switch of the electric heating component 23 can be controlled by the outdoor temperature and the operating status of the compressor. When the outdoor temperature is greater than or equal to the fourth temperature threshold, the electric heating component 23 is directly turned off. When the outdoor temperature is less than or equal to the fifth temperature threshold, the electric heating component 23 is started to work with the heat exchanger 1 to raise the water temperature in the water storage tank 221 so that the temperature of the accumulated water is maintained above 0°C to prevent the accumulated water from freezing. When the outdoor temperature is greater than the fifth temperature threshold and less than the fourth temperature threshold, the current operating status of the compressor is obtained. If the current operating status of the compressor is running, the operating duration is obtained. If the current operating status of the compressor is stopped, the shutdown duration is obtained. Then, the duration of the current operating status is compared with the time threshold. If the duration is greater than the time threshold, the electric heating component 23 is turned on until the compressor 21 starts again and then turns off. If the duration is less than or equal to the time threshold, the electric heating component 23 is turned off.

[0103] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A heat exchanger used in an air conditioner, wherein the air conditioner comprises a compressor and a chassis, characterized in that: The heat exchanger includes a compressor pipe having one end disposed on the exhaust side of the compressor and a chassis pipe having one end disposed on the water storage tank of the chassis. The heat exchanger also includes a pipe separation assembly, the pipe separation assembly including a first separation member and a second separation member that are separable and contactable. The other end of the compressor pipe is connected to the first separation member, and the other end of the chassis pipe is connected to the second separation member. When the first separation member and the second separation member are in contact, heat exchange between the compressor pipe and the chassis pipe can be achieved. An electric heating assembly is provided on the chassis for heating the accumulated water in the water storage tank. When a heating mode instruction is received, the first separation member and the second separation member are controlled to contact. When receiving a heating mode instruction, controlling the first separation member to contact the second separation member comprises: Acquire a drainage mode of the air conditioner; wherein the drainage mode of the air conditioner includes a non-external drainage mode and an external drainage mode; If the drainage mode of the air conditioner is a non-external drainage mode, obtaining the water temperature of the water storage tank and controlling the on and off of the electric heating component according to the water temperature; If the drainage mode of the air conditioner is the external drainage mode, the outdoor temperature and the duration of the compressor in the current operating state are obtained, and the turning on and off of the electric heating component is controlled according to the outdoor temperature and the duration.

2. The heat exchanger according to claim 1, characterized in that The pipeline separation assembly further includes a driving member configured to drive the first separation member and the second separation member to separate and contact with each other.

3. The heat exchanger according to claim 2, characterized in that The driving member includes a first electromagnetic member and a second electromagnetic member, the first electromagnetic member is arranged in the first separating member, and the second electromagnetic member is arranged in the second separating member. The first electromagnetic member and / or the second electromagnetic member form an attractive or repulsive magnetic field force according to the direction of the input current to make the first separating member approach or move away from the second separating member.

4. The heat exchanger according to claim 1, characterized in that One of the first separating member and the second separating member is provided with a guide hole, and the other of the first separating member and the second separating member is provided with a guide rod, and the guide rod is slidably connected to the guide hole.

5. The heat exchanger according to claim 1, characterized in that The first separation element includes a first heat exchange element and a first heat insulation element covering the first heat exchange element, and the second separation element includes a second heat exchange element and a second heat insulation element covering the second heat exchange element. The first heat exchange element and the second heat exchange element are both made of heat conductive materials.

6. An air conditioner comprising a compressor and a chassis, characterized in that: It also includes a heat exchanger as described in any one of claims 1 to 5.

7. The air conditioner according to claim 6, characterized in that The chassis is also provided with a temperature sensor for detecting the water temperature of the water tank.

8. A method for controlling an air conditioner according to any one of claims 6 to 7, characterized in that: include: When receiving a cooling mode instruction, obtaining the outdoor temperature, and controlling the separation or contact of the first separation element and the second separation element according to the outdoor temperature; When a heating mode instruction is received, the first separating member and the second separating member are controlled to contact with each other.

9. The control method according to claim 8, characterized in that: The controlling the separation or contact of the first separation element and the second separation element according to the outdoor temperature includes: Determining whether the outdoor temperature is greater than a first temperature threshold; If the outdoor temperature is greater than a first temperature threshold, controlling the first separation element to contact the second separation element; If the outdoor temperature is less than or equal to a first temperature threshold, the first separating element and the second separating element are controlled to separate.

10. The control method according to claim 8, characterized in that: The controlling the turning on and off of the electric heating component according to the water temperature includes: If the water temperature is less than or equal to a second temperature threshold, starting the electric heating component; If the water temperature is greater than or equal to a third temperature threshold, turning off the electric heating component; wherein the third temperature threshold is greater than the second temperature threshold; If the water temperature is greater than the second temperature threshold and less than the third temperature threshold, the current state of the electric heating component is maintained.

11. The control method according to claim 8, characterized in that: The obtaining of the outdoor temperature and the duration of the compressor in the current operating state, and controlling the turning on and off of the electric heating component according to the outdoor temperature and the duration, comprises: If the outdoor temperature is greater than or equal to a fourth temperature threshold, turning off the electric heating component; If the outdoor temperature is less than or equal to a fifth temperature threshold, the electric heating component is started; wherein the fourth temperature threshold is greater than the fifth temperature threshold; If the outdoor temperature is greater than the fifth temperature threshold and less than the fourth temperature threshold, obtaining the duration and determining whether the duration is greater than the time threshold; If the duration is greater than the time threshold, starting the electric heating component; If the duration is less than or equal to the time threshold, the electric heating component is turned off.

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