Anti-condensation control method and device, medium, electronic equipment and air conditioner

Abstract

The invention provides an anti-condensation control method and device, a medium, electronic equipment and an air conditioner, relates to the technical field, and solves the technical problems that the surface of a liquid cooling heat dissipation plate is prone to condensation, a power device is threatened, and potential electrical safety hazards exist. The method comprises the following steps: acquiring environmental parameters; the dew point temperature TL0 is calculated based on the obtained environment parameters; the real-time temperature Ts of the liquid cooling heat dissipation module is obtained; the real-time temperature Ts is compared with the dew point temperature TL0; and on the basis of the comparison result, starting and stopping of the anti-condensation control unit are controlled, so that the real-time temperature Ts of the liquid cooling heat dissipation module is higher than the dew point temperature TL0, and the liquid cooling heat dissipation module is prevented from generating condensation. The anti-condensation control unit is arranged in the liquid cooling heat dissipation module, and the heating value of the anti-condensation control unit is controlled, so that the temperature of the liquid cooling heat dissipation module is increased, the temperature of the liquid cooling heat dissipation module is higher than the dew point temperature, and the purpose of preventing condensate water from being generated on the surface of the liquid cooling heat dissipation module is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an anti-condensation control method, device, medium, electronic equipment and air conditioning. Background Art

[0002] With the national energy efficiency upgrade requirements, variable frequency air conditioners are gradually replacing fixed frequency air conditioners to occupy the air conditioner market. As a result, the power devices that control the variable frequency compressor have a need to be cooled. In order to reduce the temperature of the power devices, the traditional method is to use an aluminum alloy finned air-cooled radiator and rely on the fan to force the heat to be dissipated. In order to enhance the heat dissipation capacity, many air conditioners have begun to use the refrigerant condensed by the condenser to dissipate the heat of the power devices.

[0003] The applicant has found that the prior art has at least the following technical problems:

[0004] The temperature of the refrigerant after condensation in the condenser is uncontrollable. In some cases, the refrigerant temperature will be too low, causing the temperature of the heat sink in direct contact with the power device to be lower than the dew point temperature of the air, resulting in condensation on the surface of the heat sink, which in turn poses a threat to the reliability of the power device and causes electrical safety hazards. Summary of the invention

[0005] The purpose of the present invention is to provide an anti-condensation control method, device, medium, electronic equipment and air conditioner to solve the technical problems in the prior art that the surface of the liquid cooling heat sink is prone to condensation, posing a threat to power devices and posing electrical safety hazards.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] In a first aspect, the present invention provides an anti-condensation control method for controlling an anti-condensation control unit, the method comprising the following steps:

[0008] Get environmental parameters;

[0009] Calculate the dew point temperature TL0 based on the acquired environmental parameters;

[0010] Get the real-time temperature Ts of the liquid cooling module;

[0011] Compare the real-time temperature Ts with the dew point temperature TL0;

[0012] Based on the comparison result, the start and stop of the anti-condensation control unit is controlled to make the real-time temperature Ts of the liquid cooling heat dissipation module higher than the dew point temperature TL0 to prevent condensation from occurring in the liquid cooling heat dissipation module.

[0013] The anti-condensation control method provided by the present invention can control the heat generation of the anti-condensation control unit by arranging an anti-condensation control unit in the liquid-cooled heat dissipation module, thereby increasing the temperature of the liquid-cooled heat dissipation module so that the temperature of the liquid-cooled heat dissipation module is higher than the dew point temperature, thereby achieving the purpose of preventing condensed water from being generated on the surface of the liquid-cooled heat dissipation module, and solving the problem that condensation is easily generated on the surface of the heat sink of the power device of the variable frequency air conditioner when liquid cooling is adopted for cooling, thereby affecting the reliability of the unit and causing electrical safety hazards.

[0014] As a further improvement of the present invention, the environmental parameters include ambient temperature T0 and ambient humidity RH0.

[0015] As a further improvement of the present invention, the control of starting and stopping the anti-condensation control unit based on the comparison result includes:

[0016] If the real-time temperature Ts-dew point temperature TL0 < the first preset temperature difference △T1, the anti-condensation control unit is controlled to start;

[0017] If the real-time temperature Ts-dew point temperature TL0> the second preset temperature difference △T2, the anti-condensation control unit is controlled to be turned off;

[0018] Wherein, the first preset temperature ΔT1 is less than the second preset temperature difference ΔT2.

[0019] As a further improvement of the present invention, the control of starting the anti-condensation control unit includes:

[0020] Calculate the target temperature Theat of the anti-condensation control unit;

[0021] According to the calculated target temperature Theat, the control voltage of the anti-condensation control unit is adjusted to complete PWM pulse width modulation.

[0022] As a further improvement of the present invention, the target temperature Theat is calculated according to the following formula:

[0023] Target temperature Theat = A / △Tdifference + B / Tliquid; where: A is the temperature difference coefficient, △Tdifference is the difference between the real-time temperature Ts and the dew point temperature, Tliquid is the temperature of the liquid cooling pipe in the liquid cooling heat dissipation module, and B is the temperature coefficient.

[0024] The anti-condensation control method provided by the present invention is to put a purely resistive strip electric heating belt on the liquid cooling tube, and control the heating value of the electric heating belt by changing the power supply voltage of the electric heating belt, thereby increasing the temperature of the liquid cooling tube, and then increasing the temperature of the heat sink, so that the temperature of the heat sink is higher than the dew point temperature, thereby preventing condensation water from being generated on the surface of the heat sink, solving the safety hazard of the air-conditioning unit, and improving the operation reliability.

[0025] In a second aspect, the present invention provides a control device, comprising:

[0026] A first acquisition unit, used to acquire environmental parameters;

[0027] A calculation unit, used for calculating the dew point temperature TL0 based on the acquired environmental parameters;

[0028] A second acquisition unit is used to acquire the real-time temperature Ts of the liquid cooling module;

[0029] The execution unit is used to control the start and stop of the anti-condensation control unit based on the comparison result to prevent condensation from occurring in the liquid cooling module.

[0030] In a third aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored, wherein the computer program can execute the method when executed by a processor.

[0031] In a fourth aspect, the present invention provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the method through the computer program.

[0032] In a fifth aspect, an air conditioner provided by the present invention is a variable frequency air conditioner, comprising a liquid cooling heat dissipation module and an anti-condensation control unit connected to the liquid cooling heat dissipation module, wherein the anti-condensation control unit is used to execute the method.

[0033] As a further improvement of the present invention, the anti-condensation control unit includes a heating module, a control module, and a detection module; the heating module is arranged in the liquid cooling module; the control module is electrically connected to the detection module and the heating module.

[0034] As a further improvement of the present invention, the liquid cooling heat dissipation module includes a power device heat dissipation plate and a liquid cooling pipe embedded in the power device heat dissipation plate.

[0035] As a further improvement of the present invention, the heating module includes an electric heating belt wrapped around the outside of the liquid cooling tube, and a voltage regulating circuit electrically connected to the electric heating belt and the control module.

[0036] As a further improvement of the present invention, the detection module includes a power device heat sink temperature sensor, a liquid cooling tube temperature sensor, an ambient temperature sensor and an ambient humidity sensor; wherein: the power device heat sink temperature sensor is installed on the power device heat sink, and the liquid cooling tube temperature sensor is arranged on the liquid cooling tube; the ambient temperature sensor and the ambient humidity sensor are arranged on the air conditioner.

[0037] The air conditioner provided by the present invention is provided with an anti-condensation control unit, an electric heating belt is sleeved on the outside of the liquid cooling pipe, and a voltage regulating circuit connected to the electric heating belt is provided. The power supply voltage of the electric heating belt on the liquid cooling pipe is adjusted by the main control chip in the control module, and the heating value of the electric heating belt is controlled, thereby increasing the temperature of the liquid cooling pipe, and then increasing the temperature of the heat sink, so that the temperature of the heat sink is higher than the dew point temperature, thereby achieving the purpose of preventing condensation water from being generated on the surface of the heat sink. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 It is a control logic diagram of the anti-condensation control method of the present invention;

[0040] Figure 2 It is a control logic diagram of an embodiment of the anti-condensation control method of the present invention;

[0041] Figure 3 is a system composition diagram of the air conditioner of the present invention;

[0042] Figure 4 It is a system composition diagram of the control device of the present invention. DETAILED DESCRIPTION

[0043] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0044] Embodiment 1:

[0045] like Figure 1 As shown, the present invention provides an anti-condensation control method for controlling an anti-condensation control unit, wherein the anti-condensation control unit includes a heating module, a control module, and a detection module; the heating module is arranged in a liquid cooling heat dissipation module; the control module is electrically connected to the detection module and the heating module; the liquid cooling heat dissipation module includes a power device heat dissipation plate and a liquid cooling tube embedded in the power device heat dissipation plate; specifically, the heating module is arranged on the liquid cooling tube.

[0046] The anti-condensation control method comprises the following steps:

[0047] Step S1, obtaining environmental parameters through a detection module;

[0048] Step S2, calculating the dew point temperature TL0 based on the acquired environmental parameters;

[0049] Step S3, obtaining the real-time temperature Ts of the liquid cooling module through the detection module;

[0050] Step S4, comparing the real-time temperature Ts with the dew point temperature TL0;

[0051] Step S5: Based on the comparison result, the anti-condensation control unit is controlled to start and stop, so that the real-time temperature Ts of the liquid cooling heat dissipation module is higher than the dew point temperature TL0, so as to prevent condensation from occurring in the liquid cooling heat dissipation module.

[0052] The anti-condensation control method provided by the present invention can control the heat generation of the anti-condensation control unit by arranging an anti-condensation control unit in the liquid-cooled heat dissipation module, thereby increasing the temperature of the liquid-cooled heat dissipation module so that the temperature of the liquid-cooled heat dissipation module is higher than the dew point temperature, thereby achieving the purpose of preventing condensed water from being generated on the surface of the liquid-cooled heat dissipation module, and solving the problem that condensation is easily generated on the surface of the heat sink of the power device of the variable frequency air conditioner when liquid cooling is adopted for cooling, thereby affecting the reliability of the unit and causing electrical safety hazards.

[0053] Embodiment 2:

[0054] like Figure 2 As shown, the present invention provides an anti-condensation control method, comprising the following steps:

[0055] Step S1, the air conditioner is started, and the environmental parameters are obtained through the detection module. Specifically, the environmental parameters include the ambient temperature T0 and the ambient humidity RH0. The ambient temperature T0 is obtained by the ambient temperature sensor installed on the air conditioner, and the ambient humidity RH0 is obtained by the ambient humidity sensor installed on the air conditioner;

[0056] Step S2, calculating the dew point temperature TL0 based on the acquired environmental parameters; specifically, the control module in the anti-condensation control unit calculates the dew point temperature TL0 at this time based on the detected ambient temperature T0 and ambient humidity RH0;

[0057] Step S3, obtaining the real-time temperature Ts of the liquid cooling heat dissipation module through the detection module; specifically, detecting the real-time temperature Ts of the power device heat dissipation plate through a power device heat dissipation plate temperature sensor installed on the power device heat dissipation plate in the liquid cooling heat dissipation module;

[0058] Step S4, compare the real-time temperature Ts with the dew point temperature TL0; specifically, first, calculate the temperature difference between the real-time temperature Ts and the dew point temperature TL0; then, compare the calculated temperature difference with the preset temperature difference; wherein the preset temperature difference includes a first preset temperature difference △T1 and a second preset temperature difference △T2; by comparing the calculated temperature difference with the preset temperature difference, different anti-condensation controls are achieved; wherein the first preset temperature △T1 < the second preset temperature difference △T2.

[0059] Step S5: Based on the comparison result, the anti-condensation control unit is controlled to start and stop, so that the real-time temperature Ts of the liquid cooling heat dissipation module is higher than the dew point temperature TL0, so as to prevent condensation from occurring in the liquid cooling heat dissipation module.

[0060] Specifically, based on the comparison result, the start and stop of the anti-condensation control unit are controlled, including:

[0061] If the real-time temperature Ts-dew point temperature TL0 is less than the first preset temperature difference △T1, the anti-condensation control unit is controlled to start; when the real-time temperature Ts-dew point temperature TL0 is less than the first preset temperature difference △T1, it indicates that the temperature of the heat sink is close to the dew point temperature, and condensation is likely to occur at this time, and anti-condensation control is required; for example, the first preset temperature difference △T1 can be set to 5°C. When the real-time temperature Ts-dew point temperature TL0 is less than 5°C, the anti-condensation control unit needs to be controlled to start, so as to increase the temperature of the heat sink to prevent condensation on the surface of the heat sink;

[0062] Specifically, controlling the anti-condensation control unit to start includes:

[0063] Calculate the target temperature Theat of the anti-condensation control unit; the target temperature Theat is calculated according to the following formula:

[0064] Target temperature Theat = A / △Tdifference + B / Tliquid; where: A is the temperature difference coefficient, △Tdifference is the difference between the real-time temperature Ts and the dew point temperature, Tliquid is the temperature of the liquid cooling pipe in the liquid cooling heat dissipation module, and B is the temperature coefficient.

[0065] According to the calculated target temperature Theat, the control voltage of the anti-condensation control unit is adjusted to complete PWM pulse width modulation.

[0066] If the real-time temperature Ts-dew point temperature TL0> the first preset temperature difference △T1, the process returns to step S1 to re-acquire the environmental parameters, and continues to execute steps S2-S5 in a loop; after the anti-condensation control unit runs for a period of time, the difference between the real-time temperature Ts and the dew point temperature TL0 is continuously determined;

[0067] If the real-time temperature Ts-dew point temperature TL0> the second preset temperature difference △T2, the anti-condensation control unit is controlled to be turned off; when the real-time temperature Ts-dew point temperature TL0> the second preset temperature difference △T2, it indicates that the temperature of the heat sink is far away from the dew point temperature, and condensation will not be generated at this time, and no anti-condensation control is required; for example, the second preset temperature difference △T2 can be set to 10°C. When the real-time temperature Ts-dew point temperature TL0>10°C, the anti-condensation control unit can be controlled to be turned off, and there is no need to heat the heat sink, and condensation will not be generated on the surface of the heat sink;

[0068] If the real-time temperature Ts-dew point temperature TL0 < the second preset temperature difference ΔT2, the target temperature Thot of the anti-condensation control unit is recalculated. Then, the control voltage of the anti-condensation control unit is adjusted according to the newly calculated target temperature Thot to increase the temperature of the heat sink as required.

[0069] The anti-condensation control method provided by the present invention is to put a purely resistive strip electric heating belt on the liquid cooling tube, and control the heating value of the electric heating belt by changing the power supply voltage of the electric heating belt, thereby increasing the temperature of the liquid cooling tube, and then increasing the temperature of the heat sink, so that the temperature of the heat sink is higher than the dew point temperature, thereby preventing condensation water from being generated on the surface of the heat sink, solving the safety hazard of the air-conditioning unit, and improving the operation reliability.

[0070] like Figure 4 As shown, the present invention provides a control device, comprising:

[0071] A first acquisition unit 10, used to acquire environmental parameters;

[0072] A calculation unit 20, configured to calculate a dew point temperature TL0 based on the acquired environmental parameters;

[0073] The second acquisition unit 30 is used to acquire the real-time temperature Ts of the liquid cooling module;

[0074] The execution unit 40 is used to control the start and stop of the anti-condensation control unit based on the comparison result to prevent condensation from occurring in the liquid cooling module.

[0075] It should be noted that the above-mentioned units can be functional modules or program modules, and can be implemented by software or hardware. For modules implemented by hardware, the above-mentioned modules can be located in the same processor; or the above-mentioned modules can be located in different processors in any combination.

[0076] It should be noted that the examples and application scenarios implemented by the above modules and corresponding steps are the same, but are not limited to the contents disclosed in the above embodiments. It should be noted that the above modules, as part of the device, can be run in a corresponding hardware environment, can be implemented by software, and can also be implemented by hardware, wherein the hardware environment includes a network environment.

[0077] The present invention provides a computer-readable storage medium, on which a computer program is stored, wherein the computer program can execute a method when executed by a processor.

[0078] Among them, when the computer program code is executed by the processor, it can execute each process of the above control method embodiment and achieve the same technical effect. In order to avoid repetition, it is not repeated here. Among them, the computer readable storage medium, such as read-only memory (Read-Only Memory, referred to as ROM), random access memory (Random ACGess Memory, referred to as RAM), disk or optical disk, etc.

[0079] Optionally, in this embodiment, the storage medium may be located on at least one network device among a plurality of network devices in the network shown in the above embodiment.

[0080] Optionally, in this embodiment, the storage medium is configured to store program codes for executing the following steps:

[0081] Acquire environmental parameters; calculate the dew point temperature TL0 based on the acquired environmental parameters; acquire the real-time temperature Ts of the liquid cooling module; compare the real-time temperature Ts with the dew point temperature TL0; based on the comparison result, control the start and stop of the anti-condensation control unit to make the real-time temperature Ts of the liquid cooling module higher than the dew point temperature TL0 to prevent condensation in the liquid cooling module.

[0082] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0083] Optionally, in this embodiment, the above-mentioned storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store program codes.

[0084] The embodiment of the present invention provides a terminal electronic device, including a memory, one or more processors and a computer program stored in the memory and running on the processor, a transmission device, and an input and output device; wherein the memory can be used to store software programs and modules, such as the program instructions / modules corresponding to the control method and the control device in the embodiment of the present invention, and the processor executes various functional applications and data processing by running the software programs and modules stored in the memory, that is, realizing the above-mentioned control method. The memory may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory may further include a memory remotely arranged relative to the processor, and these remote memories may be connected to the terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0085] The above-mentioned transmission device is used to receive or send data via a network, and can also be used for data transmission between a processor and a memory. Specific examples of the above-mentioned network may include wired networks and wireless networks. In one example, the transmission device includes a network adapter (Network Interface Controller, NIC), which can be connected to other network devices and routers via a network cable so as to communicate with the Internet or a local area network. In one example, the transmission device is a radio frequency (Radio Frequency, RF) module, which is used to communicate with the Internet wirelessly.

[0086] Specifically, the memory is used to store application programs.

[0087] The processor may call the application stored in the memory through the transmission device to perform the following steps:

[0088] Acquire environmental parameters; calculate the dew point temperature TL0 based on the acquired environmental parameters; acquire the real-time temperature Ts of the liquid cooling module; compare the real-time temperature Ts with the dew point temperature TL0; based on the comparison result, control the start and stop of the anti-condensation control unit to make the real-time temperature Ts of the liquid cooling module higher than the dew point temperature TL0 to prevent condensation in the liquid cooling module.

[0089] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0090] Those skilled in the art will appreciate that the terminal electronic device may be a smart phone (such as an Android phone, an iOS phone, etc.), a tablet computer, a PDA, a mobile Internet device (MID), a PAD, or other terminal devices.

[0091] A person of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing the hardware related to the terminal device through a program, and the program can be stored in a computer-readable storage medium, and the storage medium may include: a flash drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0092] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0093] If the integrated units in the above embodiments are implemented in the form of software functional units and sold or used as independent products, they can be stored in the above computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling one or more computer devices (which may be personal computers, servers, or network devices, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.

[0094] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0095] In the several embodiments provided in the present application, it should be understood that the disclosed client can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0096] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0097] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0098] like Figure 3 As shown, an air conditioner provided by the present invention is a variable frequency air conditioner, comprising a liquid cooling heat dissipation module and an anti-condensation control unit connected to the liquid cooling heat dissipation module, and the anti-condensation control unit is used to execute the above method.

[0099] Furthermore, the anti-condensation control unit includes a heating module, a control module, and a detection module; the heating module is arranged in the liquid cooling module; the control module is electrically connected to the detection module and the heating module.

[0100] Furthermore, the control module includes a main control board and a main control chip installed in the main control board.

[0101] As an optional implementation of the present invention, the liquid cooling module includes a power device heat sink and a liquid cooling pipe embedded in the power device heat sink.

[0102] The power device heat sink is directly connected to the power device, and a temperature sensor is provided to detect the temperature of the heat sink and transmit the detected temperature data to the main control chip.

[0103] In this embodiment, the heating module includes an electric heating belt wrapped around the outside of the liquid cooling tube, and a voltage regulating circuit electrically connected to the electric heating belt and the control module.

[0104] As a further improvement of the present invention, the detection module includes a power device heat sink temperature sensor, a liquid cooling tube temperature sensor, an ambient temperature sensor and an ambient humidity sensor; wherein: the power device heat sink temperature sensor is installed on the power device heat sink, and the liquid cooling tube temperature sensor is arranged on the liquid cooling tube; the ambient temperature sensor and the ambient humidity sensor are arranged on the air conditioner, and specifically, the ambient temperature sensor and the ambient humidity sensor can be arranged in the electrical box, for detecting the temperature and humidity of the air, and transmitting the detected temperature and humidity data to the main control chip. The main control chip calculates the dew point temperature TL0 at this time according to the detected temperature and humidity data.

[0105] The main control chip compares the detected real-time temperature Ts of the heat sink with the calculated dew point temperature TL0. When the difference between the real-time temperature Ts of the heat sink and the dew point temperature TL0 is less than or equal to the first preset difference △T1, the main control chip turns on the electric heating belt. For example, the first preset difference △T1 is set to 5°C. When the difference between the real-time temperature Ts of the heat sink and the dew point temperature TL0 is less than 5°C, the main control chip starts to supply power to the electric heating belt.

[0106] The electric heating belt is a pure resistive load. The heat generated is determined by the power supply voltage. The higher the voltage, the greater the heat generated. The electric heating belt is put on the liquid cooling tube, and the liquid cooling tube is embedded in the heat sink. The electric heating belt is powered by the voltage regulating circuit on the main control board. The voltage output by the voltage regulating circuit is determined by the main control chip by controlling the duty cycle of the PWM wave. The larger the duty cycle of the PWM wave, the higher the voltage output by the voltage regulating circuit.

[0107] The size of the PWM wave duty cycle is related to the difference between the heat sink temperature and the dew point temperature, as well as the temperature of the liquid cooling tube. The smaller the difference between the heat sink temperature and the dew point temperature, the larger the PWM wave duty cycle; the lower the liquid cooling tube temperature, the larger the PWM (pulse width modulation) wave duty cycle. The target temperature of the electric heating belt is Theat = A / ΔT 差 +B / T 液 , where ΔT difference is the difference between the real-time temperature of the heat sink and the dew point temperature, A is the temperature difference coefficient, T liquid is the temperature of the liquid cooling tube, and B is the temperature coefficient. Both A and B are obtained based on experimental tests; Where R is the resistance value of the electric heating belt, C is the voltage coefficient, and C is determined by the performance of the electric heating belt; PWM wave duty cycle = D*U 供 , D is determined by the performance of the voltage regulation circuit. The following is an example of the relationship between the difference between the heat sink temperature and the dew point temperature, the temperature of the liquid cooling tube and the PWM wave duty cycle. It is not actual data. The actual data is obtained from experimental tests.

[0108] PWM duty cycle (%) Temperature difference (℃) Liquid cooling pipe temperature (℃) 85 2 20 80 2 25 75 2 30 70 2 35 65 2 40 60 2 45 80 3 20 75 3 25 70 3 30 65 3 35 60 3 40 55 3 45 75 4 20 70 4 25 65 4 30 60 4 35 55 4 40 50 4 45

[0109] When the difference between the detected heat sink temperature and the calculated dew point temperature by the main control chip is greater than the second preset difference △T2, the main chip stops supplying power to the electric heating belt. For example, the second preset difference △T2 is set to 10°C. When the difference between the heat sink temperature and the dew point temperature is greater than 10°C, the main chip stops supplying power to the electric heating belt.

[0110] The air conditioner provided by the present invention is provided with an anti-condensation control unit, an electric heating belt is sleeved on the outside of the liquid cooling pipe, and a voltage regulating circuit connected to the electric heating belt is provided. The power supply voltage of the electric heating belt on the liquid cooling pipe is adjusted by the main control chip in the control module, and the heating value of the electric heating belt is controlled, thereby increasing the temperature of the liquid cooling pipe, and then increasing the temperature of the heat sink, so that the temperature of the heat sink is higher than the dew point temperature, thereby achieving the purpose of preventing condensation water from being generated on the surface of the heat sink.

[0111] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for preventing condensation, characterized in that: Used to control the anti-condensation control unit, the method comprises the following steps: Get environmental parameters; Calculate the dew point temperature TL0 based on the acquired environmental parameters; Get the real-time temperature Ts of the liquid cooling module; Compare the real-time temperature Ts with the dew point temperature TL0; Based on the comparison result, the start and stop of the anti-condensation control unit is controlled to make the real-time temperature Ts of the liquid cooling heat dissipation module higher than the dew point temperature TL0 to prevent condensation from occurring in the liquid cooling heat dissipation module.

2. The method according to claim 1, characterized in that The environmental parameters include environmental temperature T0 and environmental humidity RH0.

3. The method according to claim 1, characterized in that The controlling the start and stop of the anti-condensation control unit based on the comparison result includes: If the real-time temperature Ts-dew point temperature TL0 < the first preset temperature difference △T1, the anti-condensation control unit is controlled to start; If the real-time temperature Ts-dew point temperature TL0> the second preset temperature difference △T2, the anti-condensation control unit is controlled to be turned off; Wherein, the first preset temperature ΔT1 is less than the second preset temperature difference ΔT2.

4. The method according to claim 3, characterized in that The controlling the anti-condensation control unit to start includes: Calculate the target temperature Theat of the anti-condensation control unit; According to the calculated target temperature Theat, the control voltage of the anti-condensation control unit is adjusted to complete PWM pulse width modulation.

5. The method according to claim 4, characterized in that The target temperature Theat is calculated according to the following formula: Target temperature Theat = A / △Tdifference + B / Tliquid; where: A is the temperature difference coefficient, △Tdifference is the difference between the real-time temperature Ts and the dew point temperature, Tliquid is the temperature of the liquid cooling pipe in the liquid cooling heat dissipation module, and B is the temperature coefficient.

6. A control device, characterized in that: include: A first acquisition unit, used to acquire environmental parameters; A calculation unit, used for calculating the dew point temperature TL0 based on the acquired environmental parameters; A second acquisition unit is used to acquire the real-time temperature Ts of the liquid cooling module; The execution unit is used to control the start and stop of the anti-condensation control unit based on the comparison result to prevent condensation from occurring in the liquid cooling module.

7. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein the computer program can execute the method according to any one of claims 1 to 5 when executed by a processor.

8. An electronic device, characterized in that: The method comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the method according to any one of claims 1 to 5 through the computer program.

9. An air conditioner, characterized in that: The invention is a variable frequency air conditioner, comprising a liquid cooling and heat dissipation module and an anti-condensation control unit connected to the liquid cooling and heat dissipation module, wherein the anti-condensation control unit is used to execute the method as claimed in any one of claims 1 to 5.

10. The air conditioner according to claim 9, characterized in that: The anti-condensation control unit includes a heating module, a control module, and a detection module; the heating module is arranged in the liquid cooling module; the control module is electrically connected to the detection module and the heating module.

11. The air conditioner according to claim 10, characterized in that: The liquid cooling heat dissipation module comprises a power device heat dissipation plate and a liquid cooling pipe embedded in the power device heat dissipation plate.

12. The air conditioner according to claim 11, characterized in that: The heating module includes an electric heating belt wrapped around the outside of the liquid cooling tube, and a voltage regulating circuit electrically connected to the electric heating belt and the control module.

13. The air conditioner according to claim 11, characterized in that: The detection module includes a power device heat sink temperature sensor, a liquid cooling tube temperature sensor, an ambient temperature sensor and an ambient humidity sensor; wherein: the power device heat sink temperature sensor is installed on the power device heat sink, and the liquid cooling tube temperature sensor is arranged on the liquid cooling tube; the ambient temperature sensor and the ambient humidity sensor are arranged on the air conditioner.

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