CN111578413A - Radiation air conditioner and heat exchanger protection control method and device - Google Patents

Radiation air conditioner and heat exchanger protection control method and device Download PDF

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Publication number
CN111578413A
CN111578413A CN202010450551.3A CN202010450551A CN111578413A CN 111578413 A CN111578413 A CN 111578413A CN 202010450551 A CN202010450551 A CN 202010450551A CN 111578413 A CN111578413 A CN 111578413A
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heat exchanger
air conditioner
radiation air
temperature
preset temperature
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CN111578413B (en
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曾昭顺
陈枫
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GD Midea Air Conditioning Equipment Co Ltd
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GD Midea Air Conditioning Equipment Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0089—Systems using radiation from walls or panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/43—Defrosting; Preventing freezing of indoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a radiation air conditioner and a heat exchanger protection control method and device, wherein the heat exchanger protection control method comprises the following steps: firstly, when a radiation air conditioner enters a radiation mode and is in a stable operation state, judging the operation state of the radiation air conditioner, then, if the radiation air conditioner operates in a refrigeration mode, acquiring the outlet temperature of an indoor heat exchanger or the inlet temperature of an outdoor heat exchanger of the radiation air conditioner, controlling the operation frequency of a compressor of the radiation air conditioner according to the outlet temperature of the indoor heat exchanger or the inlet temperature of the outdoor heat exchanger, and finally, if the radiation air conditioner operates in a heating mode, acquiring the outlet temperature of the indoor heat exchanger of the radiation air conditioner, and controlling the operation frequency of the compressor of the radiation air conditioner according to the outlet temperature of the indoor heat exchanger. According to the heat exchanger protection control method of the radiation air conditioner, the indoor and outdoor heat exchangers can be well protected, and user experience is good.

Description

Radiation air conditioner and heat exchanger protection control method and device
Technical Field
The invention relates to the technical field of air conditioners, in particular to a radiation air conditioner and a heat exchanger protection control method and device.
Background
Present domestic air conditioner, if indoor fan does not operate, or certain air conditioner does not have indoor fan, does not have one set of reliable control logic, can guarantee that its heat exchanger temperature is in suitable operating range all the time, and correlation technique's domestic air conditioner simultaneously, the indoor set easily takes place to frost, and indoor outer heat exchanger temperature is higher, easily scalds the user, brings relatively poor experience for the user.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, a first objective of the present invention is to provide a heat exchanger protection control method for a radiation air conditioner, which can better protect indoor and outdoor heat exchangers and provide a good user experience.
A second object of the present invention is to provide a computer readable storage medium for implementing the heat exchanger protection control method of the radiation air conditioner.
The third objective of the present invention is to provide a radiation air conditioner capable of implementing the above protection control method for the heat exchanger of the radiation air conditioner.
A fourth object of the present invention is to provide a heat exchanger protection control device for a radiant air conditioner.
A fifth object of the present invention is to provide a radiation air conditioner having the heat exchanger protection control device of the radiation air conditioner.
According to the heat exchanger protection control method of the radiation air conditioner of the embodiment of the present invention, the radiation air conditioner includes an indoor heat exchanger, and the indoor heat exchanger includes: the heat exchanger protection control method comprises the following steps of: when the radiation air conditioner enters a radiation mode and is in a stable operation state, judging the operation state of the radiation air conditioner; if the radiation air conditioner operates in a refrigerating mode, acquiring the outlet temperature of an indoor heat exchanger or the inlet temperature of an outdoor heat exchanger of the radiation air conditioner, and controlling the operating frequency of a compressor of the radiation air conditioner according to the outlet temperature of the indoor heat exchanger or the inlet temperature of the outdoor heat exchanger; and if the radiation air conditioner is in heating operation, acquiring the outlet temperature of an indoor heat exchanger of the radiation air conditioner, and controlling the operation frequency of a compressor of the radiation air conditioner according to the outlet temperature of the indoor heat exchanger.
According to the heat exchanger protection control method of the radiation air conditioner, the damaged state of the heat exchanger of the radiation air conditioner is detected in the cooling mode or the heating mode, the temperature of the indoor heat exchanger or the outdoor heat exchanger is detected, and then the operating frequency of the compressor is controlled according to the control mechanism of the radiation air conditioner, so that the heat exchanger is protected.
In some embodiments of the present invention, when the radiation air conditioner is operated in a cooling mode, controlling an operation frequency of a compressor of the radiation air conditioner according to the outlet temperature of the indoor heat exchanger or the inlet temperature of the outdoor heat exchanger includes: judging whether the outlet temperature of the indoor heat exchanger is lower than a first preset temperature or whether the inlet temperature of the outdoor heat exchanger is higher than a second preset temperature; if the outlet temperature of the indoor heat exchanger is greater than or equal to a first preset temperature or the inlet temperature of the outdoor heat exchanger is less than or equal to a second preset temperature, maintaining the running frequency of a compressor of the radiation air conditioner unchanged; if the outlet temperature of the indoor heat exchanger is less than a first preset temperature or the inlet temperature of the outdoor heat exchanger is greater than a second preset temperature, reducing the frequency-increasing speed of a compressor of the radiation air conditioner, and judging whether the outlet temperature of the indoor heat exchanger is less than a third preset temperature or judging whether the inlet temperature of the outdoor heat exchanger is greater than a fourth preset temperature, wherein the third preset temperature is less than the first preset temperature, and the fourth preset temperature is greater than the second preset temperature; and if the outlet temperature of the indoor heat exchanger is less than a third preset temperature or the inlet temperature of the outdoor heat exchanger is greater than a fourth preset temperature, forbidding a compressor of the radiation air conditioner to carry out frequency increasing.
In some embodiments of the present invention, when the radiant air conditioner is in heating operation, controlling an operation frequency of a compressor of the radiant air conditioner according to the indoor heat exchanger outlet temperature includes: judging whether the outlet temperature of the indoor heat exchanger is higher than a fifth preset temperature or not; if the outlet temperature of the indoor heat exchanger is less than or equal to a fifth preset temperature, maintaining the running frequency of a compressor of the radiation air conditioner unchanged; if the outlet temperature of the indoor heat exchanger is higher than a fifth preset temperature, reducing the frequency raising speed of a compressor of the radiation air conditioner, and judging whether the outlet temperature of the indoor heat exchanger is higher than a sixth preset temperature, wherein the sixth preset temperature is higher than the fifth preset temperature; and if the outlet temperature of the indoor heat exchanger is higher than a sixth preset temperature, forbidding a compressor of the radiation air conditioner to carry out frequency increasing.
In some embodiments of the present invention, when a time that a compressor of the radiation air conditioner operates at a constant operating frequency reaches a preset time, or an operating parameter of the radiation air conditioner remains unchanged and a temperature of any one test point in the radiation air conditioner remains unchanged within the preset time, or an operating voltage of the radiation air conditioner remains unchanged and a variation range of an operating current of the radiation air conditioner within the preset time is within a preset current fluctuation interval, it is determined that the radiation air conditioner is in a stable operating state.
The invention also provides a computer readable storage medium capable of realizing the heat exchanger protection control method of the radiation air conditioner.
According to the computer readable storage medium of the embodiment of the present invention, a heat exchanger protection control program of a radiation air conditioner is stored thereon, and the heat exchanger protection control program realizes the heat exchanger protection control method of the radiation air conditioner when being executed by a processor.
According to the computer readable storage medium provided by the embodiment of the invention, the frequency of the compressor can be well controlled, so that the indoor heat exchanger and the outdoor heat exchanger can be well protected, and the bad phenomenon that an indoor unit frosts when the radiation air conditioner cools can be prevented in the process of protecting the heat exchanger, or the accident that a user is scalded because the temperature of the heat exchanger is good when the radiation air conditioner heats can be prevented, so that the reliability is high, and the user experience is good.
The invention also provides a radiation air conditioner capable of realizing the heat exchanger protection control method of the radiation air conditioner.
The radiation air conditioner according to the embodiment of the present invention includes a heat exchanger, a memory, a processor, and a heat exchanger protection control program of the radiation air conditioner stored on the memory and operable on the processor, the heat exchanger including: the heat exchanger protection control method comprises a micro-channel core body and heat dissipation pieces, wherein the micro-channel core body is provided with a plurality of channels for heat exchange media to flow, the heat dissipation pieces are arranged on two opposite sides of the micro-channel core body in the thickness direction, the heat dissipation pieces are suitable for dissipating heat through radiation, and the heat exchanger protection control method of the radiation air conditioner is realized when the processor executes a heat exchanger protection control program.
According to the radiation air conditioner disclosed by the embodiment of the invention, through the heat exchanger protection control method of the radiation air conditioner, the radiation air conditioner and the compressor can be better operated, an indoor heat exchanger and an outdoor heat exchanger can be better protected, in addition, the bad phenomenon that an indoor unit is frosted when the radiation air conditioner is used for refrigerating can be prevented in the process of protecting the heat exchanger, or the accident that a user is scalded due to the fact that the temperature of the heat exchanger is better when the radiation air conditioner is used for heating is avoided, the reliability is high, and the user experience sense is better.
The invention also provides a heat exchanger protection control device of the radiation air conditioner.
According to the heat exchanger protection control device of the radiation air conditioner of the embodiment of the present invention, the radiation air conditioner includes a heat exchanger, and the heat exchanger includes: the micro-channel core body is provided with a plurality of channels for heat exchange media to flow, the heat dissipation pieces are arranged on two opposite sides of the micro-channel core body in the thickness direction, the heat dissipation pieces are suitable for dissipating heat through radiation, and the heat exchanger protection control device comprises: the judging module is used for judging the running state of the radiation air conditioner when the radiation air conditioner enters a radiation mode and is in a stable running state; the protection control module is used for acquiring the outlet temperature of an indoor heat exchanger or the inlet temperature of an outdoor heat exchanger of the radiation air conditioner during the refrigeration operation of the radiation air conditioner and controlling the operation frequency of a compressor of the radiation air conditioner according to the outlet temperature of the indoor heat exchanger or the inlet temperature of the outdoor heat exchanger; the protection control module is further used for acquiring the outlet temperature of an indoor heat exchanger of the radiation air conditioner during heating operation of the radiation air conditioner and controlling the operation frequency of a compressor of the radiation air conditioner according to the outlet temperature of the indoor heat exchanger.
According to the heat exchanger protection control device of the radiation air conditioner, the radiation air conditioner can radiate and conduct temperature better through the arranged heat exchanger so as to refrigerate or heat an indoor environment better, the radiation air conditioner can be controlled better through the arranged judging module and the protection control module, therefore, the running frequency of the compressor is controlled better, the indoor heat exchanger and the outdoor heat exchanger can be protected better, in addition, the bad phenomenon that an indoor unit frosts when the radiation air conditioner refrigerates can be prevented in the process of protecting the heat exchanger, or the accident that a user is scalded because the temperature of the heat exchanger is better when the radiation air conditioner heats can be prevented, the reliability is high, and the user experience sense is better.
According to the heat exchanger protection control device of the radiation air conditioner, when the radiation air conditioner operates in a refrigerating mode, the protection control module is further used for judging whether the outlet temperature of the indoor heat exchanger is smaller than a first preset temperature or whether the inlet temperature of the outdoor heat exchanger is larger than a second preset temperature; if the outlet temperature of the indoor heat exchanger is greater than or equal to a first preset temperature or the inlet temperature of the outdoor heat exchanger is less than or equal to a second preset temperature, maintaining the running frequency of a compressor of the radiation air conditioner unchanged; if the outlet temperature of the indoor heat exchanger is less than a first preset temperature or the inlet temperature of the outdoor heat exchanger is greater than a second preset temperature, reducing the frequency-increasing speed of a compressor of the radiation air conditioner, and judging whether the outlet temperature of the indoor heat exchanger is less than a third preset temperature or judging whether the inlet temperature of the outdoor heat exchanger is greater than a fourth preset temperature, wherein the third preset temperature is less than the first preset temperature, and the fourth preset temperature is greater than the second preset temperature; and if the outlet temperature of the indoor heat exchanger is less than a third preset temperature or the inlet temperature of the outdoor heat exchanger is greater than a fourth preset temperature, forbidding a compressor of the radiation air conditioner to carry out frequency increasing.
According to the heat exchanger protection control device of the radiation air conditioner, when the radiation air conditioner is in heating operation, the protection control module is further used for judging whether the outlet temperature of the indoor heat exchanger is greater than a fifth preset temperature; if the outlet temperature of the indoor heat exchanger is less than or equal to a fifth preset temperature, maintaining the running frequency of a compressor of the radiation air conditioner unchanged; if the outlet temperature of the indoor heat exchanger is higher than a fifth preset temperature, reducing the frequency raising speed of a compressor of the radiation air conditioner, and judging whether the outlet temperature of the indoor heat exchanger is higher than a sixth preset temperature, wherein the sixth preset temperature is higher than the fifth preset temperature; and if the outlet temperature of the indoor heat exchanger is higher than a sixth preset temperature, forbidding a compressor of the radiation air conditioner to carry out frequency increasing.
According to the heat exchanger protection control device of the radiation air conditioner, the protection control module is further configured to judge that the radiation air conditioner is in a stable operation state when the time for which the compressor operates at the constant operation frequency reaches a preset time, or the operation parameters of the radiation air conditioner are kept unchanged and the temperature of any one test point in the radiation air conditioner is kept unchanged within the preset time, or the operation voltage of the radiation air conditioner is kept unchanged and the variation range of the operation current of the radiation air conditioner within the preset time is within a preset current fluctuation interval.
The invention also provides a radiation air conditioner with the heat exchanger protection control device of the radiation air conditioner.
According to the radiation air conditioner provided by the embodiment of the invention, the radiation air conditioner can perform radiation refrigeration or radiation heating better through the heat exchanger protection control device of the radiation air conditioner provided by the embodiment, an indoor heat exchanger and an outdoor heat exchanger can be protected better, moreover, the bad phenomenon that an indoor unit is frosted when the radiation air conditioner performs refrigeration can be prevented in the process of protecting the heat exchanger, or the accident that a user is scalded due to the fact that the temperature of the heat exchanger is better when the radiation air conditioner performs heating is avoided, the reliability is high, and the user experience is better.
Additional aspects and advantages of the invention 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 invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of the overall construction of a heat exchanger according to some embodiments of the invention;
FIG. 2 is an exploded schematic view of a heat exchanger according to some embodiments of the present invention;
FIG. 3 is an enlarged, fragmentary schematic view of a heat exchanger according to some embodiments of the invention;
FIG. 4 is a schematic diagram of the overall construction of a heat exchanger according to further embodiments of the present invention;
FIG. 5 is an exploded schematic view of a heat exchanger according to further embodiments of the present invention;
FIG. 6 is a graph of temperature rise test data for heat exchanger testing according to some embodiments of the invention;
FIG. 7 is a graph of temperature drop test data for a heat exchanger test according to some embodiments of the invention;
FIG. 8 is a system diagram of a radiant air conditioner according to an embodiment of the present invention;
fig. 9 is a flowchart of a heat exchanger protection control method of a radiant air conditioner according to an embodiment of the present invention.
Reference numerals:
a heat exchanger 100;
a microchannel core 1; flat tubes 11; a header 12; an input tube 121; an output pipe 122;
a heat sink 2; a heat dissipation plate 21; heat dissipating fins 22.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The invention provides a radiation air conditioner, which comprises a shell, a heat exchanger and an air exhaust part, wherein the shell is provided with an air inlet and an air outlet, the air exhaust part is arranged in the shell, and the air exhaust part operates to drive the air in the shell to flow so as to generate negative pressure at the air inlet, so that the heat dissipation efficiency is improved.
The heat exchange device has a radiation mode, under the radiation mode, the exhaust component does not work, air in the shell exchanges heat with the heat exchanger, the air after heat exchange can be discharged through the air outlet, then the air inlet can form negative pressure, and the air outside the shell can flow into the shell through the air inlet and then exchanges heat with the heat exchanger. Therefore, under the radiation mode, because the exhaust part does not work, the noise-free operation of the heat exchange device is realized, and the air and the heat exchanger can transfer heat through natural convection, so that the air outlet of the heat exchange device is soft, the non-wind sense of the heat exchange device can be realized, and the heat exchange device is particularly suitable for small-load application scenes such as sleep and the like.
Still further, the heat exchanger 100 includes: a microchannel core 1 and two heat sinks 2.
The micro-channel core body 1 is provided with a plurality of flat tubes 11 for the flow of a heat exchange medium, and a plurality of channels for the flow of the heat exchange medium are arranged in the flat tubes 11 for the flow of the heat exchange medium; two heat dissipation members 2 are provided on opposite sides in the thickness direction of the microchannel core 1, each heat dissipation member 2 includes a heat dissipation plate 21 and heat dissipation fins 22, and the heat dissipation fins 22 are provided on a side of the heat dissipation plate 21 away from the microchannel core 1.
Because two heat dissipation parts 2 are established in the ascending relative both sides of thickness direction of microchannel core 1, microchannel core 1 is located the centre, two heat dissipation parts 2 constitute three-layer sandwich formula structure with microchannel core 1, refrigerant medium flows in microchannel core 1 and conducts heat, the heat dissipation part 2 of both sides is through radiation heat transfer and natural convection, give the air around heat or cold volume transmission, heat exchanger 100 can also not take the fan, realize no wind or zero wind, very big improvement the travelling comfort, customer's experience sense has been promoted.
According to the heat exchanger 100 provided by the embodiment of the invention, the micro-channel core body 1 and the two heat dissipation members 2 are arranged, the two heat dissipation members 2 and the micro-channel core body 1 form a three-layer sandwich structure, and the two heat dissipation members 2 are tightly attached to the two sides of the micro-channel core body 1, so that the heat exchange area of the air side is enlarged, the heat exchange efficiency is improved, and the discharge of condensed water is facilitated.
Referring to fig. 1 and 4, according to some embodiments of the present invention, a heat dissipation plate 21 is in direct contact with and attached to a microchannel core 1. Because the heat dissipation plate 21 directly contacts and is attached to the micro-channel core body 1, the heat dissipation plate 21 is in surface contact with the micro-channel core body 1, the air side heat exchange area is increased, and the heat exchange efficiency is improved.
Referring to fig. 1, 4, according to some alternative embodiments of the invention, the heat dissipation plates 21 of two heat dissipation elements 2 are connected by a connector to clamp the microchannel core 1 between the two heat dissipation elements 2. For example, the heat dissipation plates 21 of the two heat dissipation members 2 are fixed by screws to clamp the micro-channel core 1 between the two heat dissipation members 2, so that a high-efficiency heat exchange mode with zero contact thermal resistance is realized, and thus, a tube expansion process of a conventional tube-fin heat exchanger and a high-temperature welding process of a generation of micro-channel heat exchanger can be avoided.
Referring to fig. 1 and 4, according to some embodiments of the present invention, a heat dissipation plate 21 is connected to a microchannel core 1 by a heat conductive paste. Because the heat dissipation plate 21 is connected with the micro-channel core body 1 through the heat conducting glue, a high-efficiency heat exchange mode with zero contact thermal resistance is realized, and the heat exchange efficiency of the heat exchanger 100 is improved.
Referring to fig. 1-5, according to some embodiments of the present invention, heat sink 2 is an integrally formed piece. Because the heat dissipation part 2 is integrally formed, no gap is generated, and the high efficiency and the uniformity of heat dissipation are further ensured.
Referring to fig. 1-5, according to some embodiments of the present invention, each heat sink 2 includes a plurality of heat sink fins 22, and the plurality of heat sink fins 22 are arranged side by side and spaced apart. Because every radiating piece 2 includes a plurality of radiating ribs 22, a plurality of radiating ribs 22 are arranged side by side and at intervals for heat exchanger 100 heat transfer area is bigger, and the heat transfer is more even, and heat exchange efficiency is higher.
As shown in fig. 1-5, according to some alternative embodiments of the present invention, the heat dissipation ribs 22 extend parallel or perpendicular to the direction of extension of the channels. For example, the extending direction of the heat dissipation ribs 22 is perpendicular to the extending direction of the channels, and since the heat exchanger 100 is used while keeping the extending direction of the heat dissipation ribs 22 perpendicular, the heat exchanger can be used as an evaporator to facilitate the drainage of condensed water; the extending direction of the heat dissipating fins 22 is parallel to the extending direction of the channels, and since the heat exchanger 100 is used while keeping the extending direction of the heat dissipating fins 22 perpendicular, it is possible to facilitate the drainage of condensed water when it is used as an evaporator, and at the same time, the heat exchanger 100 may have various shapes, such as: l-shaped or U-shaped.
As shown in FIG. 3, according to some alternative embodiments of the present invention, the spacing d between two adjacent fins 22 ranges from 0.8 to 1.5mm, and the height h of the fins 22 ranges from 1mm to 2 mm. For example, the distance d between two adjacent fins 22 is 0.8mm, and the height h of the fins 22 is 1.2 mm. The interval d between the fins 22 and the height h of the fins 22 are different, and the radiation coefficients of the surfaces of the fins 22 are also different. As the interval d between the radiating ribs 22 becomes larger and the height h of the radiating ribs 22 becomes higher, the emissivity of the surface of the radiating ribs 22 becomes stronger.
Referring to fig. 1-5, according to some embodiments of the present invention, at least the heat dissipating fins 22 of the heat dissipating member 2 are provided with a heat absorbing layer.
Referring to fig. 1-5, according to some alternative embodiments of the present invention, the heat absorbing layer is a black graphene layer.
Because the heat absorption layer of black graphene is sprayed on the surface of the heat dissipation member 2, the absorption rate of the surface of the heat dissipation member 2 is increased, and the radiation heat exchange coefficient is enhanced.
The invention also provides a heat exchanger protection control method of the radiation air conditioner.
According to the heat exchanger protection control method of the radiation air conditioner of the embodiment of the invention, the radiation air conditioner comprises an indoor heat exchanger, and the indoor heat exchanger comprises: the heat dissipation device comprises a micro-channel core body and heat dissipation pieces, wherein the micro-channel core body is provided with a plurality of channels for heat exchange media to flow, the heat dissipation pieces are arranged on two opposite sides of the micro-channel core body in the thickness direction, and the heat dissipation pieces are suitable for dissipating heat through radiation.
The heat exchanger protection control method comprises the following steps:
firstly, when a radiation air conditioner enters a radiation mode and is in a stable operation state, judging the operation state of the radiation air conditioner, if the radiation air conditioner operates in a refrigeration mode, acquiring the outlet temperature of an indoor heat exchanger or the inlet temperature of an outdoor heat exchanger of the radiation air conditioner, controlling the operation frequency of a compressor of the radiation air conditioner according to the outlet temperature of the indoor heat exchanger or the inlet temperature of the outdoor heat exchanger, and if the radiation air conditioner operates in a heating mode, acquiring the outlet temperature of the indoor heat exchanger of the radiation air conditioner, and controlling the operation frequency of the compressor of the radiation air conditioner according to the outlet temperature of the indoor heat exchanger.
It should be noted that, in the air conditioner in the related art, during the starting process, the air conditioner is in an unstable state, and the heat exchanger protection control method of the radiation air conditioner in the present application may detect the temperatures of various parts of the radiation air conditioner when the operation is stable during the cooling or heating process of the radiation air conditioner, specifically:
during refrigeration, acquiring the outlet temperature of an indoor heat exchanger or the inlet temperature of an outdoor heat exchanger of a radiation air conditioner; when heating, obtain the indoor heat exchanger outlet temperature of radiation air conditioner to can be according to the running state that the air conditioner is different, come the indoor outer heat exchanger of better ground protection, thereby can prevent that the radiation air conditioner from damaging indoor outer heat exchanger to the in-process that indoor environment refrigeration or heat under the radiation mode, perhaps the bad phenomenon that the indoor set frosted appears when the radiation air conditioner refrigerates, perhaps the heat exchanger temperature is better appears when the radiation air conditioner heats, and causes the accident that the user was scalded.
Therefore, according to the heat exchanger protection control method of the radiation air conditioner provided by the embodiment of the invention, the temperature of the indoor heat exchanger or the outdoor heat exchanger is detected by detecting the damaged state of the heat exchanger of the radiation air conditioner in the cooling mode or the heating mode, and then the operating frequency of the compressor is controlled according to the control mechanism of the radiation air conditioner, so that the heat exchanger is protected, and the bad phenomenon that an indoor unit is frosted when the radiation air conditioner is cooled can be prevented in the process of protecting the heat exchanger, or the accident that a user is scalded due to the fact that the temperature of the heat exchanger is good when the radiation air conditioner is heated can be prevented, the reliability is high, and the user experience sense is good.
In some embodiments of the present invention, when the radiation air conditioner is operated in a cooling mode, controlling an operation frequency of a compressor of the radiation air conditioner according to an outlet temperature of an indoor heat exchanger or an inlet temperature of an outdoor heat exchanger includes: and judging whether the outlet temperature of the indoor heat exchanger is lower than a first preset temperature or judging whether the inlet temperature of the outdoor heat exchanger is higher than a second preset temperature.
If the outlet temperature of the indoor heat exchanger is greater than or equal to a first preset temperature or the inlet temperature of the outdoor heat exchanger is less than or equal to a second preset temperature, the running frequency of a compressor of the radiation air conditioner is maintained unchanged, if the outlet temperature of the indoor heat exchanger is less than the first preset temperature or the inlet temperature of the outdoor heat exchanger is greater than the second preset temperature, the frequency increasing speed of the compressor of the radiation air conditioner is reduced, whether the outlet temperature of the indoor heat exchanger is less than a third preset temperature or whether the inlet temperature of the outdoor heat exchanger is greater than a fourth preset temperature is judged, wherein the third preset temperature is less than the first preset temperature, the fourth preset temperature is greater than the second preset temperature, and if the outlet temperature of the indoor heat exchanger is less than the third preset temperature or the inlet temperature of the outdoor heat exchanger is greater than the fourth preset temperature, the frequency increasing of the compressor of.
In an example of the present invention, an indoor heat exchanger temperature sensing bulb installed on a copper pipeline between an indoor heat exchanger and an electronic expansion valve is used as an indoor heat exchanger outlet temperature required to be obtained when a radiation air conditioner operates in a cooling mode, and the indoor heat exchanger outlet temperature at this time is: t inner 1 (refer to fig. 8), the outdoor heat exchanger temperature sensing bulb installed on the copper pipeline between the outdoor heat exchanger and the four-way valve is used as the outdoor heat exchanger inlet temperature that needs to be obtained when the radiation air conditioner operates in a cooling mode, and the first preset temperature in this example is: 2 ℃, and the second preset temperature is: 58 ℃, and the third preset temperature is: 0 ℃, the fourth preset temperature is: 61 ℃, whereby, as shown in fig. 9, the radiation air conditioner operates in cooling:
when the following conditions are satisfied: if the temperature T inside 1 is more than or equal to 2 ℃ or the temperature T outside 1 is less than or equal to 58 ℃, maintaining the current frequency strategy of the radiation air conditioner for driving the compressor, and at the moment, the radiation air conditioner stably operates according to a refrigeration mode;
when the following conditions are satisfied: if T inner 1 is less than 2 ℃, or T outer 1 is more than 58 ℃, reducing the speed of the current radiation air conditioner for driving the compressor to increase the running frequency, and then continuing to judge the obtained T inner 1 or T outer 1, if the following conditions are met: if the temperature in T is less than 1 and less than 0 ℃ or T < 1 > 61 ℃ outside T is met, the compressor is forbidden to continuously increase the operation frequency, and at the moment, the radiation air conditioner stably operates according to a refrigeration mode;
when the following conditions are satisfied: if T inner 1 is less than 2 ℃, or T outer 1 is more than 58 ℃, reducing the speed of the current radiation air conditioner for driving the compressor to increase the running frequency, and then continuing to judge the obtained T inner 1 or T outer 1, if the T inner 1 or T outer 1 is satisfied: the temperature of the T inner 1 is more than or equal to 0 ℃, or the temperature of the T outer 1 is less than or equal to 61 ℃, the radiation air conditioner can stably run according to a refrigeration mode, and whether the following conditions are met or not can be continuously judged at the moment: t inner 1 is less than 2 ℃, or T outer 1 is more than 58 ℃, so that the obtained T inner 1 or T outer 1 is continuously and circularly judged, and the running frequency of the compressor is controlled.
Through the heat exchanger protection control method of the radiation air conditioner, the indoor heat exchanger and the outdoor heat exchanger can be well protected when the radiation air conditioner is in a refrigeration mode, in addition, the bad phenomenon that an indoor machine frosts when the radiation air conditioner is refrigerated can be prevented in the process of protecting the heat exchanger, or the temperature of the heat exchanger is good when the radiation air conditioner is heated, so that the accident that a user is scalded is caused, the reliability is high, and the user experience feeling is good.
In some embodiments of the present invention, when the radiant air conditioner is operated for heating, controlling an operation frequency of a compressor of the radiant air conditioner according to an outlet temperature of the indoor heat exchanger includes: judging whether the outlet temperature of the indoor heat exchanger is higher than a fifth preset temperature or not; if the outlet temperature of the indoor heat exchanger is less than or equal to the fifth preset temperature, the running frequency of a compressor of the radiation air conditioner is kept unchanged; if the outlet temperature of the indoor heat exchanger is higher than the fifth preset temperature, reducing the frequency increasing speed of a compressor of the radiation air conditioner, and judging whether the outlet temperature of the indoor heat exchanger is higher than a sixth preset temperature, wherein the sixth preset temperature is higher than the fifth preset temperature; and if the outlet temperature of the indoor heat exchanger is higher than the sixth preset temperature, forbidding the compressor of the radiation air conditioner to carry out frequency increasing.
In an example of the present invention, an indoor heat exchanger thermal bulb installed on a copper pipeline between an indoor heat exchanger and a throttling component is used as an indoor heat exchanger outlet temperature that needs to be obtained when a radiation air conditioner is in heating operation, and the indoor heat exchanger outlet temperature at this time is: t inner 3 (shown with reference to fig. 8), the fifth preset temperature in this example is: 62 ℃, and the sixth preset temperature is: 65 c, as shown in fig. 9, when the radiation air conditioner is operated for heating,
when the following conditions are satisfied: when the temperature in T is less than or equal to 62 ℃, maintaining the current frequency strategy of driving the compressor by the radiation air conditioner, and at the moment, stably operating the radiation air conditioner according to a heating mode;
when the following conditions are satisfied: and if the T inner 3 is more than 62 ℃, reducing the speed of the current radiation air conditioner for driving the compressor to increase the running frequency, and continuing to judge the obtained T inner 3, if the following conditions are met: if the temperature in T is more than 65 ℃, the compressor is forbidden to continuously increase the operation frequency, and at the moment, the radiation air conditioner stably operates according to a heating mode;
when the following conditions are satisfied: and if the T inner 3 is more than 62 ℃, reducing the speed of the current radiation air conditioner for driving the compressor to increase the running frequency, and then continuing to judge the obtained T inner 3, if the T inner 3 meets the following conditions: and T is less than or equal to 3 ℃, the radiation air conditioner stably operates according to a heating mode, and whether the following conditions are met can be continuously judged: tinner 3 is more than 62 ℃, so that the acquired Tinner 3 is continuously and circularly judged and the running frequency of the compressor is controlled.
Through the heat exchanger protection control method of the radiation air conditioner, the indoor heat exchanger and the outdoor heat exchanger can be well protected when the radiation air conditioner is in a heating mode, in addition, the bad phenomenon that an indoor unit frosts when the radiation air conditioner is refrigerated can be prevented in the process of protecting the heat exchanger, or the temperature of the heat exchanger is good when the radiation air conditioner is heated, so that the accident that a user is scalded is caused, the reliability is high, and the user experience feeling is good.
In some examples of the present invention, the method of determining stable operation of the radiant air conditioner may be:
the first embodiment is as follows: the compressor of the radiant air conditioner reaches the preset time at the constant frequency operation time;
example two: under the condition that the operation parameters of the radiation air conditioner are inconvenient, the temperature of any test point of the radiation air conditioner is not changed within a first preset time, wherein the temperature of any test point of the radiation air conditioner can be specifically set according to factors such as the working environment of the radiation air conditioner, the model of the radiation air conditioner and the like;
example three: on the premise that the voltage of the radiation air conditioner is stable, the variation range of the current of the radiation air conditioner is within a first preset fluctuation range within a first preset time.
Of course, it is understood that there may be other methods for determining the stable operation of the radiant air conditioner, which is not limited herein.
In some embodiments of the present invention, before the air conditioner enters the radiation mode, the air conditioner is further subjected to fault detection to determine whether a component fault condition occurs, wherein if the component fault condition occurs, the main control mechanism and the protection control mechanism of the air conditioner are modified according to a predefined fault strategy table. The component failure herein may refer to a failure of a thermal bulb in an air conditioner, and it is understood that the component failure may also be a failure of other structures or components, which is not limited herein.
In a specific example, the component failure is a failure of a thermal bulb in an air conditioner, and the thermal bulb of the air conditioner may include: exhaust temperature bulb T row, compressor bottom bulb T bottom, return air bulb T return, 1 in indoor heat exchanger bulb T, 2 in indoor heat exchanger bulb T, 3 in indoor heat exchanger bulb T, 1 outside outdoor heat exchanger bulb T, 2 outside outdoor heat exchanger bulb T, 3 outside outdoor heat exchanger bulb T, specifically:
and (4) T row: the exhaust temperature sensing bulb is arranged on a copper pipeline between the exhaust port of the compressor and the four-way valve;
bottom T: the compressor bottom temperature sensing bulb is arranged on the main cylinder body of the compressor;
t, returning: the air return temperature sensing package is arranged on a copper pipeline between an air return port of the compressor and the four-way valve;
t, inner 1: the indoor heat exchanger temperature sensing bulb is arranged on a copper pipeline between the indoor heat exchanger and the electronic expansion valve;
t, inner 2: the indoor heat exchanger temperature sensing bulb is arranged on the indoor heat exchanger;
t, inner 3: the indoor heat exchanger temperature sensing bulb is arranged on a copper pipeline between the indoor heat exchanger and the throttling component;
t outer 1: the temperature sensing bulb of the outdoor heat exchanger is arranged on a copper pipeline between the outdoor heat exchanger and the four-way valve;
t outer 2: the outdoor heat exchanger temperature sensing bulb is arranged on the outdoor heat exchanger;
t, outer 3: and the temperature sensing bulb of the outdoor heat exchanger is arranged on a copper pipeline between the outdoor heat exchanger and the throttling component.
Of course, it is understood that the temperature at other positions may also be measured according to actual requirements to obtain the sensor collecting parameters of the air conditioner, which is not limited herein.
Specifically, the regulation and control method may be implemented according to the fault policy table shown in table 4 below:
table 4: fault strategy table
Figure BDA0002507528520000111
Figure BDA0002507528520000121
By the implementation method of the fault strategy table, when one or more temperature sensing bulbs in the air conditioner are damaged, the air conditioner can still run reliably, and the system paralysis cannot be caused, so that the user experience is not influenced.
The invention also provides a computer readable storage medium capable of realizing the heat exchanger protection control method of the radiation air conditioner.
According to the computer-readable storage medium of an embodiment of the present invention, a heat exchanger protection control program of a radiant air conditioner is stored thereon, which implements a heat exchanger protection control method of the radiant air conditioner when being executed by a processor.
Therefore, according to the computer readable storage medium provided by the embodiment of the invention, the frequency of the compressor can be well controlled, so that the indoor heat exchanger and the outdoor heat exchanger can be well protected, and the bad phenomenon that an indoor unit frosts when the radiation air conditioner cools can be prevented in the process of protecting the heat exchanger, or the accident that a user is scalded due to the fact that the temperature of the heat exchanger is good when the radiation air conditioner heats can be prevented, so that the reliability is high, and the user experience sense is good.
The invention also provides a radiation air conditioner capable of realizing the heat exchanger protection control method of the radiation air conditioner.
The radiation air conditioner according to the embodiment of the invention comprises a heat exchanger, a memory, a processor and a heat exchanger protection control program of the radiation air conditioner, wherein the heat exchanger is stored on the memory and can run on the processor, and the heat exchanger comprises: the heat exchanger protection control method of the radiation air conditioner comprises a micro-channel core body and heat dissipation pieces, wherein the micro-channel core body is provided with a plurality of channels for heat exchange media to flow, the heat dissipation pieces are arranged on two opposite sides of the micro-channel core body in the thickness direction, the heat dissipation pieces are suitable for dissipating heat through radiation, and the heat exchanger protection control method of the radiation air conditioner is realized when a processor executes a heat exchanger protection control program.
Therefore, according to the radiation air conditioner provided by the embodiment of the invention, through the heat exchanger protection control method of the radiation air conditioner, the radiation air conditioner and the compressor can be better operated, the indoor heat exchanger and the outdoor heat exchanger can be better protected, in addition, the bad phenomenon that an indoor unit is frosted when the radiation air conditioner is used for cooling can be prevented in the process of protecting the heat exchanger, or the accident that a user is scalded due to the fact that the temperature of the heat exchanger is better when the radiation air conditioner is used for heating can be avoided, the reliability is high, and the user experience is better.
The invention also provides a heat exchanger protection control device of the radiation air conditioner.
According to the heat exchanger protection control device of the radiation air conditioner of the embodiment of the invention, the radiation air conditioner comprises a heat exchanger, and the heat exchanger comprises: microchannel core and radiating piece, the microchannel core has a plurality of passageways that can supply heat exchange medium to flow, and the relative both sides on the thickness direction of microchannel core are established to the radiating piece, and the radiating piece is suitable for through radiation heat dissipation, and heat exchanger protection controlling means includes: the device comprises a judgment module and a protection control module, wherein the judgment module is used for judging the running state of the radiation air conditioner when the radiation air conditioner enters a radiation mode and is in a stable running state, the protection control module is used for acquiring the outlet temperature of an indoor heat exchanger or the inlet temperature of an outdoor heat exchanger of the radiation air conditioner when the radiation air conditioner runs in a cooling mode, and controlling the running frequency of a compressor of the radiation air conditioner according to the outlet temperature of the indoor heat exchanger or the inlet temperature of the outdoor heat exchanger, and the protection control module is also used for acquiring the outlet temperature of the indoor heat exchanger of the radiation air conditioner when the radiation air conditioner runs in a heating mode and controlling the running frequency of the compressor of the radiation air conditioner according to the outlet.
Therefore, according to the heat exchanger protection control device of the radiation air conditioner provided by the embodiment of the invention, the radiation air conditioner can radiate and conduct temperature better through the arranged heat exchanger so as to refrigerate or heat an indoor environment better, and the radiation air conditioner can be controlled better through the arranged judging module and the protection control module, so that the running frequency of the compressor is controlled better, the indoor heat exchanger and the outdoor heat exchanger can be protected better, in addition, the bad phenomenon that an indoor unit frosts when the radiation air conditioner refrigerates can be prevented in the process of protecting the heat exchanger, or the heat exchanger temperature is better when the radiation air conditioner heats, so that the accident that a user is scalded is caused, the reliability is high, and the user experience sense is better.
According to the heat exchanger protection control device of the radiation air conditioner, when the radiation air conditioner operates in a refrigerating mode, the protection control module is further used for judging whether the outlet temperature of the indoor heat exchanger is smaller than a first preset temperature or whether the inlet temperature of the outdoor heat exchanger is larger than a second preset temperature; if the outlet temperature of the indoor heat exchanger is greater than or equal to a first preset temperature or the inlet temperature of the outdoor heat exchanger is less than or equal to a second preset temperature, the running frequency of a compressor of the radiation air conditioner is maintained unchanged, if the outlet temperature of the indoor heat exchanger is less than the first preset temperature or the inlet temperature of the outdoor heat exchanger is greater than the second preset temperature, the frequency increasing speed of the compressor of the radiation air conditioner is reduced, whether the outlet temperature of the indoor heat exchanger is less than a third preset temperature or whether the inlet temperature of the outdoor heat exchanger is greater than a fourth preset temperature is judged, wherein the third preset temperature is less than the first preset temperature, the fourth preset temperature is greater than the second preset temperature, and if the outlet temperature of the indoor heat exchanger is less than the third preset temperature or the inlet temperature of the outdoor heat exchanger is greater than the fourth preset temperature, the frequency increasing of the compressor of.
When the radiation air conditioner is in heating operation, the protection control module is also used for judging whether the outlet temperature of the indoor heat exchanger is greater than a fifth preset temperature; if the outlet temperature of the indoor heat exchanger is less than or equal to the fifth preset temperature, the running frequency of a compressor of the radiation air conditioner is kept unchanged; if the outlet temperature of the indoor heat exchanger is higher than the fifth preset temperature, reducing the frequency increasing speed of a compressor of the radiation air conditioner, and judging whether the outlet temperature of the indoor heat exchanger is higher than a sixth preset temperature, wherein the sixth preset temperature is higher than the fifth preset temperature; and if the outlet temperature of the indoor heat exchanger is higher than the sixth preset temperature, forbidding the compressor of the radiation air conditioner to carry out frequency increasing.
The protection control module is also used for judging that the radiation air conditioner is in a stable operation state when the time for the compressor to work at the constant operation frequency reaches preset time, or the operation parameters of the radiation air conditioner are kept unchanged and the temperature of any test point in the radiation air conditioner is kept unchanged in the preset time, or the working voltage of the radiation air conditioner is kept unchanged and the variation amplitude of the working current of the radiation air conditioner in the preset time is in a preset current fluctuation interval.
The invention also provides a radiation air conditioner with the heat exchanger protection control device of the radiation air conditioner.
According to the radiation air conditioner provided by the embodiment of the invention, the radiation air conditioner can perform radiation refrigeration or radiation heating better through the heat exchanger protection control device of the radiation air conditioner provided by the embodiment, an indoor heat exchanger and an outdoor heat exchanger can be protected better, moreover, the bad phenomenon that an indoor unit is frosted when the radiation air conditioner performs refrigeration can be prevented in the process of protecting the heat exchanger, or the accident that a user is scalded due to the fact that the temperature of the heat exchanger is better when the radiation air conditioner performs heating is avoided, the reliability is high, and the user experience is better.
Other constructions and operations of the radiation air conditioner according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
It should be noted that the radiation air conditioner, the heat exchanger protection control method of the radiation air conditioner, and the heat exchanger protection control device of the radiation air conditioner of the present invention are obtained based on the following research and experiments, and specifically:
according to the empirical formula of radiation heat transfer, Stefan-Boltzmann law:
Figure BDA0002507528520000141
note: the specific meanings of the parameters in the above formula are as follows:
q-heat transfer amount
A-heat exchange area
T is the absolute temperature (K) of the object, the absolute temperatures of the two objects A and B;
sigma-Stefan-Boltzmann constant, sigma 5.67 × 10-8W/(m2·K4)；
The surface emissivity, whose value is between 0 and 1, is determined by the surface properties of the object, and in the case of absolute blackbodies, 1.
Factors that influence the surface emissivity are the type of substance, the surface temperature and the surface roughness. The emissivity of different substances is different, and the emissivity of the same metal material, which is rough or oxidized, is several times that of a highly polished metal material.
Table 1-table 3, fig. 6-fig. 7 are experimental data for testing of heat exchanger 100 according to the present invention:
wherein, tables 1 to 3 are tables of test data, and fig. 6 to 7 are graphs drawn according to the test data.
Table 1: temperature rise and drop test conditions
Temperature reduction Indoor at 36 ℃/60% Outdoor 43 ℃/60% Wall 34 deg.C
Temperature rise Indoor 0 ℃/100% Outdoor-5 ℃/60% Wall 4 deg.C
Table 2: temperature rise test data
Figure BDA0002507528520000142
Figure BDA0002507528520000151
Table 3: temperature drop test data
Time/min 0 20 40 60 80 100
Air temperature 36.12 31.45 30.39 29.76 29.23 29.21
Wall temperature 33.97 33.43 33.11 33.16 33.19 32.76
The test results and curves show that the heat exchanger 100 and the radiation control method of the air conditioner provided by the invention can realize rapid temperature rise and maintain the temperature.
For the purposes of this application, it should be noted that the embodiments of the present application may be provided as a method, system, or computer program product, as will be appreciated by one of ordinary skill in the art. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include such modifications and variations
In the description herein, references to the description of the terms "some embodiments," "optionally," "further," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (11)

1. A heat exchanger protection control method of a radiation air conditioner is characterized in that the radiation air conditioner comprises an indoor heat exchanger, and the indoor heat exchanger comprises: the heat exchanger protection control method comprises the following steps of:
when the radiation air conditioner enters a radiation mode and is in a stable operation state, judging the operation state of the radiation air conditioner;
if the radiation air conditioner operates in a refrigerating mode, acquiring the outlet temperature of an indoor heat exchanger or the inlet temperature of an outdoor heat exchanger of the radiation air conditioner, and controlling the operating frequency of a compressor of the radiation air conditioner according to the outlet temperature of the indoor heat exchanger or the inlet temperature of the outdoor heat exchanger;
and if the radiation air conditioner is in heating operation, acquiring the outlet temperature of an indoor heat exchanger of the radiation air conditioner, and controlling the operation frequency of a compressor of the radiation air conditioner according to the outlet temperature of the indoor heat exchanger.
2. The heat exchanger protection control method of a radiation air conditioner according to claim 1, wherein controlling the operation frequency of the compressor of the radiation air conditioner according to the indoor heat exchanger outlet temperature or the outdoor heat exchanger inlet temperature when the radiation air conditioner is operated in a cooling mode comprises:
judging whether the outlet temperature of the indoor heat exchanger is lower than a first preset temperature or whether the inlet temperature of the outdoor heat exchanger is higher than a second preset temperature;
if the outlet temperature of the indoor heat exchanger is greater than or equal to a first preset temperature or the inlet temperature of the outdoor heat exchanger is less than or equal to a second preset temperature, maintaining the running frequency of a compressor of the radiation air conditioner unchanged;
if the outlet temperature of the indoor heat exchanger is less than a first preset temperature or the inlet temperature of the outdoor heat exchanger is greater than a second preset temperature, reducing the frequency-increasing speed of a compressor of the radiation air conditioner, and judging whether the outlet temperature of the indoor heat exchanger is less than a third preset temperature or judging whether the inlet temperature of the outdoor heat exchanger is greater than a fourth preset temperature, wherein the third preset temperature is less than the first preset temperature, and the fourth preset temperature is greater than the second preset temperature;
and if the outlet temperature of the indoor heat exchanger is less than a third preset temperature or the inlet temperature of the outdoor heat exchanger is greater than a fourth preset temperature, forbidding a compressor of the radiation air conditioner to carry out frequency increasing.
3. The heat exchanger protection control method of a radiation air conditioner according to claim 1, wherein controlling the operation frequency of the compressor of the radiation air conditioner according to the indoor heat exchanger outlet temperature when the radiation air conditioner is in heating operation comprises:
judging whether the outlet temperature of the indoor heat exchanger is higher than a fifth preset temperature or not;
if the outlet temperature of the indoor heat exchanger is less than or equal to a fifth preset temperature, maintaining the running frequency of a compressor of the radiation air conditioner unchanged;
if the outlet temperature of the indoor heat exchanger is higher than a fifth preset temperature, reducing the frequency raising speed of a compressor of the radiation air conditioner, and judging whether the outlet temperature of the indoor heat exchanger is higher than a sixth preset temperature, wherein the sixth preset temperature is higher than the fifth preset temperature;
and if the outlet temperature of the indoor heat exchanger is higher than a sixth preset temperature, forbidding a compressor of the radiation air conditioner to carry out frequency increasing.
4. The heat exchanger protection control method of a radiation air conditioner according to any one of claims 1 to 3, characterized in that when the time for which the compressor of the radiation air conditioner operates at a constant operation frequency reaches a preset time, or the operation parameters of the radiation air conditioner remain unchanged and the temperature of any one test point in the radiation air conditioner remains unchanged for a preset time, or the operation voltage of the radiation air conditioner remains unchanged and the variation range of the operation current of the radiation air conditioner within a preset time is in a preset current fluctuation interval, the radiation air conditioner is judged to be in a stable operation state.
5. A computer-readable storage medium, characterized in that a heat exchanger protection control program of a radiation air conditioner is stored thereon, which when executed by a processor implements a heat exchanger protection control method of the radiation air conditioner according to any one of claims 1 to 4.
6. A radiant air conditioner, characterized in that it comprises:
a heat exchanger, the heat exchanger comprising: the heat dissipation device comprises a micro-channel core body and heat dissipation pieces, wherein the micro-channel core body is provided with a plurality of channels for heat exchange media to flow, the heat dissipation pieces are arranged on two opposite sides of the micro-channel core body in the thickness direction, and the heat dissipation pieces are suitable for dissipating heat through radiation;
the heat exchanger protection control method of the radiation air conditioner comprises a memory, a processor and a heat exchanger protection control program of the radiation air conditioner, wherein the heat exchanger protection control program is stored on the memory and can be run on the processor, and the processor executes the heat exchanger protection control program to realize the heat exchanger protection control method of the radiation air conditioner according to any one of claims 1-4.
7. A heat exchanger protection control device of a radiation air conditioner, characterized in that the radiation air conditioner includes a heat exchanger, the heat exchanger includes: the micro-channel core body is provided with a plurality of channels for heat exchange media to flow, the heat dissipation pieces are arranged on two opposite sides of the micro-channel core body in the thickness direction, the heat dissipation pieces are suitable for dissipating heat through radiation, and the heat exchanger protection control device comprises:
the judging module is used for judging the running state of the radiation air conditioner when the radiation air conditioner enters a radiation mode and is in a stable running state;
the protection control module is used for acquiring the outlet temperature of an indoor heat exchanger or the inlet temperature of an outdoor heat exchanger of the radiation air conditioner during the refrigeration operation of the radiation air conditioner and controlling the operation frequency of a compressor of the radiation air conditioner according to the outlet temperature of the indoor heat exchanger or the inlet temperature of the outdoor heat exchanger;
the protection control module is further used for acquiring the outlet temperature of an indoor heat exchanger of the radiation air conditioner during heating operation of the radiation air conditioner and controlling the operation frequency of a compressor of the radiation air conditioner according to the outlet temperature of the indoor heat exchanger.
8. The heat exchanger protection control device of a radiation air conditioner as claimed in claim 7, wherein the protection control module is further adapted to, when the radiation air conditioner is operated in a cooling mode,
judging whether the outlet temperature of the indoor heat exchanger is lower than a first preset temperature or whether the inlet temperature of the outdoor heat exchanger is higher than a second preset temperature;
if the outlet temperature of the indoor heat exchanger is greater than or equal to a first preset temperature or the inlet temperature of the outdoor heat exchanger is less than or equal to a second preset temperature, maintaining the running frequency of a compressor of the radiation air conditioner unchanged;
if the outlet temperature of the indoor heat exchanger is less than a first preset temperature or the inlet temperature of the outdoor heat exchanger is greater than a second preset temperature, reducing the frequency-increasing speed of a compressor of the radiation air conditioner, and judging whether the outlet temperature of the indoor heat exchanger is less than a third preset temperature or judging whether the inlet temperature of the outdoor heat exchanger is greater than a fourth preset temperature, wherein the third preset temperature is less than the first preset temperature, and the fourth preset temperature is greater than the second preset temperature;
and if the outlet temperature of the indoor heat exchanger is less than a third preset temperature or the inlet temperature of the outdoor heat exchanger is greater than a fourth preset temperature, forbidding a compressor of the radiation air conditioner to carry out frequency increasing.
9. The heat exchanger protection control device of a radiation air conditioner as claimed in claim 7, wherein the protection control module is further for, when the radiation air conditioner is in heating operation,
judging whether the outlet temperature of the indoor heat exchanger is higher than a fifth preset temperature or not;
if the outlet temperature of the indoor heat exchanger is less than or equal to a fifth preset temperature, maintaining the running frequency of a compressor of the radiation air conditioner unchanged;
if the outlet temperature of the indoor heat exchanger is higher than a fifth preset temperature, reducing the frequency raising speed of a compressor of the radiation air conditioner, and judging whether the outlet temperature of the indoor heat exchanger is higher than a sixth preset temperature, wherein the sixth preset temperature is higher than the fifth preset temperature;
and if the outlet temperature of the indoor heat exchanger is higher than a sixth preset temperature, forbidding a compressor of the radiation air conditioner to carry out frequency increasing.
10. The heat exchanger protection control device of a radiation air conditioner according to any one of claims 7 to 9, wherein the protection control module is further configured to determine that the radiation air conditioner is in a stable operation state when a time for which the compressor operates at the constant operation frequency reaches a preset time, or an operation parameter of the radiation air conditioner is kept unchanged and a temperature of any one test point in the radiation air conditioner is kept unchanged for a preset time, or an operation voltage of the radiation air conditioner is kept unchanged and a variation range of an operation current of the radiation air conditioner within a preset time is within a preset current fluctuation range.
11. A radiation air conditioner characterized by comprising the heat exchanger protection control device of the radiation air conditioner as set forth in any one of claims 7 to 10.
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