CN217236132U - Variable frequency air conditioning system - Google Patents
Variable frequency air conditioning system Download PDFInfo
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- CN217236132U CN217236132U CN202220192214.3U CN202220192214U CN217236132U CN 217236132 U CN217236132 U CN 217236132U CN 202220192214 U CN202220192214 U CN 202220192214U CN 217236132 U CN217236132 U CN 217236132U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The application relates to the technical field of air conditioners and discloses a variable frequency air conditioning system. The application provides a variable frequency air conditioning system includes refrigerant circulation pipeline, water-cooling circulation pipeline and bypass pipe section. The refrigerant circulating pipeline comprises a compressor, a condenser, a throttling element and an evaporator which are sequentially communicated; the water-cooling circulation pipeline comprises a surface cooler, an evaporator and a circulating water pump which are sequentially communicated; the bypass pipe section comprises a radiator in heat conduction contact with the intelligent power module, one end of the bypass pipe section is connected between the surface air cooler and the evaporator, and the other end of the bypass pipe section is connected between the surface air cooler and the circulating water pump. The evaporator can absorb the heat of the circulating water through the refrigerant circulating pipeline, the circulating water flows out after being cooled by the evaporator, one part of the circulating water enters the surface air cooler to cool the indoor air, and the other part of the circulating water enters the radiator to radiate the heat of the intelligent power module. The application discloses variable frequency air conditioning system adopts the circulation flow of refrigerated water in the radiator to dispel the heat to intelligent power module, and the radiating effect is superior to traditional fin.
Description
Technical Field
The application relates to the technical field of air conditioners, for example to a variable frequency air conditioning system.
Background
At present, the application of the variable frequency air conditioner is more and more common, and the variable frequency air conditioner is added with a variable frequency power device in a fixed frequency air conditioner. The frequency conversion power device is an important component in the frequency conversion air conditioner, and mainly adopts a multifunctional integrated intelligent power module for regulating and controlling the rotating speed of the compressor, thereby saving energy consumption. The higher the compressor frequency, the more heat is generated by the smart power module.
In the prior art, in order to realize the heat dissipation of an intelligent power module, an air conditioner radiator and a variable frequency air conditioner are disclosed. The air-conditioning radiator comprises a substrate, wherein the front surface of the substrate comprises a plurality of mounting areas for mounting electronic components, the back surface of the substrate is provided with a plurality of fins which are arranged in parallel and at intervals, and the thickness of the substrate corresponding to the mounting area of the electronic component with larger heat productivity is thicker under the same working condition; under the same working condition, the distribution density of the fins corresponding to the mounting area of the electronic component with larger heat generation quantity is larger.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: under the working condition of high ring temperature, the aluminum fin radiator is limited to poor heat dissipation performance, the heating power of the intelligent power module is high, and the improvement of the heat dissipation efficiency of the aluminum fin radiator is limited.
SUMMERY OF THE UTILITY MODEL
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a variable frequency air conditioning system, an evaporator can absorb heat of circulating water through a refrigerant circulating pipeline, the circulating water flows out after being cooled by the evaporator, a part of circulating water enters a surface air cooler to cool indoor air, and the other part of circulating water enters a radiator to radiate heat of an intelligent power module. The application discloses variable frequency air conditioning system adopts the circulation flow of refrigerated water in the radiator to dispel the heat to intelligent power module, and the radiating effect is superior to traditional fin.
In some embodiments, the inverter air conditioning system comprises a refrigerant circulation pipeline of a compressor, a condenser, a throttling element and an evaporator, which are connected in sequence, and further comprises a water cooling circulation pipeline and a bypass pipe section. The water-cooling circulation pipeline comprises a surface cooler, an evaporator and a circulating water pump which are sequentially communicated; the bypass pipe section comprises a radiator, the radiator is in heat conduction contact with the intelligent power module, the two ends of the bypass pipe section are respectively a first end part and a second end part, the first end part is connected between the surface air cooler and the evaporator, and the second end part is connected between the surface air cooler and the circulating water pump; when the variable frequency air conditioning system operates, the evaporator absorbs the heat of the circulating water through the refrigerant circulating pipeline, the circulating water flows out after being cooled by the evaporator, one part of the cooled circulating water enters the surface air cooler to cool the indoor air through the circulating water pump, and the other part of the cooled circulating water enters the radiator to radiate the heat of the intelligent power module.
In some optional embodiments, the inverter air conditioning system further comprises a pressure stabilizer, the pressure stabilizer is disposed in the pipeline between the first end portion and the surface air cooler, and the pressure stabilizer is configured to maintain the pressure of the circulating water at a set value.
In some optional embodiments, the evaporator comprises a first heat exchange section and a second heat exchange section which are in heat conduction contact, wherein the first heat exchange section is used for circulating water, and the second heat exchange section is used for circulating a refrigerant; the flow direction of water flow in the first heat exchange section is opposite to the flow direction of refrigerant in the second heat exchange section, so that reverse heat exchange is carried out by utilizing the step temperature difference.
In some alternative embodiments, the evaporator comprises a plate evaporator.
In some alternative embodiments, the heat sink comprises a fin assembly and a heat dissipation tube, the fin assembly comprising a plurality of parallel fins, the fin assembly being in thermally conductive contact with the smart power module; the cooling tube is snakelike a plurality of fins of wearing to establish, and the cooling tube is used for the circulation circulating water.
In some alternative embodiments, the surface cooler comprises a coil.
In some optional embodiments, the inverter air conditioning system further comprises an axial flow fan, and the axial flow fan is positioned on the side portion of the condenser and the radiator to perform air cooling and heat dissipation.
In some alternative embodiments, the throttling element comprises an electronic expansion valve or a capillary tube.
In some alternative embodiments, the bypass line further comprises a first valve body for controlling the flow of circulating water through the bypass line.
In some optional embodiments, the inverter air conditioning system further comprises a control unit configured to control the opening degree of the first valve body according to the temperature of the radiator.
The variable frequency air conditioning system provided by the embodiment of the disclosure can realize the following technical effects:
the variable frequency air conditioning system comprises a refrigerant circulating pipeline, a water cooling circulating pipeline and a bypass pipe section. The refrigerant circulating pipeline comprises a compressor, a condenser, a throttling element and an evaporator which are sequentially communicated; the water-cooling circulation pipeline comprises a surface cooler, an evaporator and a circulating water pump which are sequentially communicated; the bypass pipe section comprises a radiator in heat conduction contact with the intelligent power module, one end of the bypass pipe section is connected between the surface air cooler and the evaporator, and the other end of the bypass pipe section is connected between the surface air cooler and the circulating water pump. The evaporator can absorb the heat of the circulating water through the refrigerant circulating pipeline, the circulating water flows out after being cooled by the evaporator, one part of the circulating water enters the surface air cooler to cool the indoor air, and the other part of the circulating water enters the radiator to radiate the heat of the intelligent power module. The application discloses variable frequency air conditioning system adopts the circulation flow of refrigerated water in the radiator to dispel the heat to intelligent power module, and the radiating effect is superior to traditional fin.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic overall structure diagram of an inverter air conditioning system provided in an embodiment of the present disclosure;
FIG. 2 is a schematic flow diagram of an inverter air conditioning system provided in an embodiment of the present disclosure;
fig. 3 is a bottom view of the overall structure of a heat sink and a smart power module provided by the disclosed embodiment;
fig. 4 is a side view of the overall structure of a heat sink and a smart power module provided by an embodiment of the present disclosure.
Reference numerals:
1: a compressor; 2: a condenser; 3: a throttling element; 4: an evaporator; 5: a heat sink; 51: a fin; 52: a radiating pipe; 6: a surface cooler; 7: a water circulating pump; 8: a voltage stabilizer; 9: and a smart power module.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and claims of the embodiments of the disclosure and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.
In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the disclosed embodiments can be understood by those of ordinary skill in the art according to specific situations.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
Referring to fig. 1 to 4, an embodiment of the present disclosure provides an inverter air conditioning system.
When the traditional variable frequency air conditioner is used for dissipating heat and cooling the intelligent power module 9, the air-cooled aluminum fins 51 are usually adopted for the radiator 5 to absorb heat of the intelligent power module 9. However, under the working condition of high ambient temperature, the temperature of the intelligent power module 9 is increased sharply because the high heat flux density and the high power of the intelligent power module 9 cannot be effectively dissipated by the aluminum fin 51 heat sink 5. In order to ensure the safety of the intelligent power module 9 and avoid the intelligent power module 9 from being burnt due to overheating, the compressor 1 is generally used for reducing the frequency to avoid the overhigh temperature of the intelligent power module 9, but the refrigeration capacity of the air conditioner is greatly reduced in a high-temperature environment.
The inverter air conditioning system provided by the embodiment of the disclosure comprises a refrigerant circulation pipeline of a compressor 1, a condenser 2, a throttling element 3 and an evaporator 4 which are sequentially connected, and further comprises a water-cooling circulation pipeline and a bypass pipe section. The water-cooling circulation pipeline comprises a surface cooler 6, an evaporator 4 and a circulating water pump 7 which are sequentially communicated; the bypass pipe section comprises a radiator 5, the radiator 5 is in heat conduction contact with the intelligent power module 9, the two ends of the bypass pipe section are respectively a first end part and a second end part, the first end part is connected between the surface air cooler 6 and the evaporator 4, and the second end part is connected between the surface air cooler 6 and the circulating water pump 7; when the variable frequency air conditioning system operates, the evaporator 4 absorbs heat of circulating water through the refrigerant circulating pipeline, the circulating water flows out after being cooled by the evaporator 4, a part of the cooled circulating water enters the surface air cooler 6 through the circulating water pump 7 to cool indoor air, and the other part of the cooled circulating water enters the radiator 5 to radiate heat of the intelligent power module 9.
Specifically, when the variable frequency air conditioning system operates, the refrigerant flow path is as follows: the high-pressure liquid refrigerant from the condenser 2 enters the evaporator 4 in the form of low-pressure liquid refrigerant through the throttling and pressure reducing effects of the throttling element 3 to absorb the heat of the circulating water. The low-pressure gaseous refrigerant after absorbing heat is sucked by the compressor 1, and the high-pressure gaseous refrigerant discharged from the compressor 1 enters the condenser 2 to start the next cycle. The water flow path is as follows: the temperature of the circulating water from the evaporator 4 is reduced after being cooled, the circulating water respectively enters the surface air cooler 6 to cool indoor air and the radiator 5 to cool the intelligent power module 9 under the action of the circulating water pump 7, the temperature of the circulating water from the surface air cooler 6 and the temperature of the circulating water from the radiator 5 are increased, the circulating water returns to the evaporator 4 again under the action of the circulating water pump 7, and the next circulation is started.
Optionally, the variable frequency air conditioning system further includes a pressure stabilizer 8, where the pressure stabilizer 8 is disposed in the pipeline between the first end and the surface cooler 6, and the pressure stabilizer 8 is configured to maintain the pressure of the circulating water at a set value. Preferably, the pressure stabilizer 8 comprises an automatic water replenishing valve, and adjusts the pressure value by matching with a pressure gauge and automatically maintains the adjusted system pressure; when the pressure of the system is reduced, the water injection is automatically opened, and when the set pressure is reached, the water injection is automatically closed, so that the evaporator 4, the radiator 5 and the surface air cooler 6 are prevented from being damaged due to overhigh water pressure. And the automatic water replenishing valve is provided with a check valve, so that the circulating water is prevented from flowing back when the water replenishing pressure is reduced or stopped. Optionally, the pressure stabilizer 8 further comprises a manual shut-off valve. Therefore, equipment maintenance is facilitated, and the water supplementing source can be closed.
Optionally, the evaporator 4 includes a first heat exchange section and a second heat exchange section in heat conduction contact, the first heat exchange section is used for circulating water, and the second heat exchange section is used for circulating a refrigerant; the flow direction of water flow in the first heat exchange section is opposite to the flow direction of refrigerant in the second heat exchange section, so that reverse heat exchange is carried out by utilizing the step temperature difference. The first heat exchange section of the evaporator 4 is connected to a water cooling circulation pipeline, and the second heat exchange section of the evaporator 4 is connected to a refrigerant circulation pipeline.
When the system is in operation, the refrigerant flow path is as follows: the high-pressure liquid refrigerant from the condenser 2 enters the second heat exchange section in the form of low-pressure liquid refrigerant through the throttling and pressure reducing effects of the throttling element 3, and absorbs the heat of the circulating water in the first heat exchange section. The low-pressure gaseous refrigerant after absorbing heat is sucked by the compressor 1, and the high-pressure gaseous refrigerant discharged from the compressor 1 enters the condenser 2 to start the next cycle. The water flow path is as follows: the temperature of the circulating water from the first heat exchange section is reduced after being cooled by the second heat exchange section, the circulating water respectively enters the surface air cooler 6 to cool the indoor air and the radiator 5 to cool the intelligent power module 9 under the action of the circulating water pump 7, the temperature of the circulating water from the surface air cooler 6 and the temperature of the circulating water from the radiator 5 are increased, the circulating water returns to the first heat exchange section again under the action of the circulating water pump 7, and the next circulation is started.
Optionally, the evaporator 4 comprises a plate evaporator 4. The plate evaporator 4 uses rising and falling film evaporation, and the refrigerant passes through the plates and is heated by circulating water. The refrigerant and the circulating water flow in a countercurrent manner in respective corresponding channels, turbulence is generated on the preset plate interval and the plate type, and the heat energy transfer effect is improved. The plate-type evaporator 4 has small occupied area, high heat exchange efficiency and convenient maintenance and cleaning.
Optionally, the heat sink 5 comprises a fin 51 assembly and a heat dissipation tube 52, the fin 51 assembly comprising a plurality of parallel fins 51, the fin 51 assembly being in heat conductive contact with the smart power module 9; the heat pipe 52 is formed in a serpentine shape to penetrate the plurality of fins 51, and the heat pipe 52 is used for circulating water. Wherein, the fin 51 comprises an aluminum fin 51, and the heat dissipation pipe 52 comprises a copper pipe. The copper pipe is used for circulating water, the copper pipe penetrates through the aluminum fins 51 in a snake shape, and the circulating water circulation directions of the inlet end and the outlet end of the copper pipe are perpendicular to the fins 51; wherein a plurality of fins 51 are vertically connected to the surface of the smart power module 9. Compare in aluminium fin 51 radiator 5, carry out cooling through water-cooling circulation pipeline, can increase substantially the radiating effect of intelligent power module 9.
Optionally, the surface cooler 6 comprises a coil. The surface cooler 6 is to make the cooling medium flow through the inner cavity of the metal pipe and the air to be treated flows through the outer wall of the metal pipe to exchange heat to achieve the purpose of cooling the air.
Optionally, the inverter air conditioning system further comprises an axial flow fan, and the axial flow fan is positioned on the side portions of the condenser 2 and the radiator 5 to perform air cooling and heat dissipation. Through setting up axial fan, can reduce the local high temperature point of radiator 5, solve the inhomogeneous and inconsistent problem of intelligent power module 9 temperature.
Alternatively, the restriction element 3 comprises an electronic expansion valve or a capillary tube. When the refrigerant passes through the electronic expansion valve or the capillary tube, a part of static pressure is converted into dynamic pressure, the flow velocity is increased rapidly and converted into turbulent flow, the refrigerant fluid is disturbed, the frictional resistance is increased, and the static pressure is reduced, so that the pressure is reduced and the flow is regulated. Preferably, the throttling element 3 is an electronic expansion valve, which can better control the high-pressure liquid refrigerant from the condenser 2 to be throttled and decompressed to a predetermined evaporating pressure.
As an example, the throttling element 3 is an electronic expansion valve.
When the system operates, the refrigerant flow path is as follows: the high-pressure liquid refrigerant from the condenser 2 enters the second heat exchange section in the form of low-pressure liquid refrigerant through the throttling and pressure reducing action of the electronic expansion valve, and absorbs the heat of the circulating water in the first heat exchange section. The low-pressure gaseous refrigerant after absorbing heat is sucked by the compressor 1, and the high-pressure gaseous refrigerant discharged from the compressor 1 enters the condenser 2 to start the next cycle.
The water flow path is as follows: circulating water from the first heat exchange section is cooled by the second heat exchange section, the temperature of the water is reduced, the circulating water respectively enters the surface air cooler 6 to cool indoor air and the radiator 5 to cool the intelligent power module 9 under the action of the circulating water pump 7, the temperature of the circulating water from the surface air cooler 6 and the temperature of the circulating water from the radiator 5 are increased, the circulating water returns to the first heat exchange section again under the action of the circulating water pump 7, and the next circulation is started.
As another example, the throttling element 3 is a capillary tube.
When the system is in operation, the refrigerant flow path is as follows: the high-pressure liquid refrigerant from the condenser 2 enters the second heat exchange section in the form of low-pressure liquid refrigerant through the throttling and pressure reducing action of the electronic expansion valve, and absorbs the heat of the circulating water in the first heat exchange section. The low-pressure gaseous refrigerant after absorbing heat is sucked by the compressor 1, and the high-pressure gaseous refrigerant discharged from the compressor 1 enters the condenser 2 to start the next cycle.
The water flow path is as follows: the temperature of the circulating water from the first heat exchange section is reduced after being cooled by the second heat exchange section, the circulating water respectively enters the surface air cooler 6 to cool the indoor air and the radiator 5 to cool the intelligent power module 9 under the action of the circulating water pump 7, the temperature of the circulating water from the surface air cooler 6 and the temperature of the circulating water from the radiator 5 are increased, the circulating water returns to the first heat exchange section again under the action of the circulating water pump 7, and the next circulation is started.
Optionally, the bypass line further comprises a first valve body for controlling the flow of circulating water of the bypass line. Through increasing first valve body, can control the velocity of flow of the circulating water of first heat transfer section of flowing through to the heat transfer volume of first heat transfer section of accuse and second heat transfer section better, further regulate and control the temperature of the interior air of surface cooler 6 cooling chamber and the effect of radiator 5 cooling intelligent power module 9.
Optionally, the inverter air conditioning system further comprises a control unit configured to control the opening degree of the first valve body according to the temperature of the radiator. When the intelligent power module needs to be cooled and radiated, the control unit controls the first valve body to be conducted, and the high-pressure liquid refrigerant coming out of the condenser 2 enters the second heat exchange section in the form of low-pressure liquid refrigerant through the throttling and pressure reducing effects of the throttling element 3 to absorb the heat of the circulating water in the first heat exchange section. The low-pressure gaseous refrigerant after absorbing heat is sucked by the compressor 1, and the high-pressure gaseous refrigerant discharged from the compressor 1 enters the condenser 2. Circulating water from the first heat exchange section is cooled by the second heat exchange section, the temperature of the water is reduced, the circulating water respectively enters the surface air cooler 6 to cool indoor air and the radiator 5 to cool the intelligent power module 9 under the action of the circulating water pump 7, the temperature of the circulating water from the surface air cooler 6 and the temperature of the circulating water from the radiator 5 are increased, and the circulating water returns to the first heat exchange section again under the action of the circulating water pump 7.
Optionally, the compressor 1 exhaust and the smart power module 9 are provided with a first temperature sensor and a second temperature sensor, respectively. Therefore, the temperature change can be detected in real time, and the supercooling degree of the system during refrigeration is improved by better utilizing the radiator 5.
Optionally, the radiator 5 comprises an inflation plate, in which a through pipe is provided for connecting the bypass pipe section, and the smart power module 9 is located on the surface of the inflation plate. Alternatively, the through pipe may be a straight pipe or a curved pipe. Wherein, crooked siphunculus can increase the flow path length and the flow resistance of inside refrigerant, is favorable to improving the endothermic efficiency and the temperature uniformity of blowing board, and then improves intelligent power module 9's radiating effect and heat dissipation homogeneity.
Optionally, the heat sink 5 comprises a microchannel heat exchanger. The microchannel heat exchanger comprises a liquid inlet pipe, a liquid outlet pipe and a plurality of microchannel heat exchange pipes connected with the liquid inlet pipe and the liquid outlet pipe, wherein the microchannel heat exchange pipes are arranged in parallel, the liquid inlet pipe is provided with one or more first partition plates so as to divide an inner cavity of the liquid inlet pipe into a plurality of flow dividing cavities, one ends of the flow dividing cavities are communicated with the microchannel heat exchange pipes, and the other ends of the flow dividing cavities are communicated with the liquid outlet. Through the microchannel heat exchanger, heat exchange can be more uniform, and the heat dissipation effect is improved.
Optionally, the inflation plate is in heat conducting contact with the smart power module 9. The surface of the blowing board is connected with the intelligent power module 9 through screws and bolts, can be welded and can be bonded through heat-conducting silica gel. Like this, help the inflation board and closely laminate with intelligent power module 9, improve heat exchange efficiency.
Optionally, the inner wall of the through tube is provided with an internal thread. The internal thread increases the flow resistance of the internal refrigerant, and heat exchange can be better carried out. Meanwhile, from the viewpoint of cost, the small-diameter radiating pipe 52 provided with the internal thread has a low cost and a good radiating effect compared to the large-diameter radiating pipe 52.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. The utility model provides a variable frequency air conditioning system, is including the refrigerant circulation pipeline of compressor, condenser, throttling element and the evaporimeter that connects gradually, its characterized in that still includes:
the water-cooling circulating pipeline comprises a surface cooler, the evaporator and a circulating water pump which are sequentially communicated; and (c) and (d),
the bypass pipe section comprises a radiator, the radiator is in heat conduction contact with the intelligent power module, the two ends of the bypass pipe section are respectively a first end part and a second end part, the first end part is connected between the surface air cooler and the evaporator, and the second end part is connected between the surface air cooler and the circulating water pump; when the variable frequency air conditioning system operates, the evaporator absorbs heat of circulating water through the refrigerant circulating pipeline, the circulating water flows out after being cooled by the evaporator, one part of the cooled circulating water enters the surface air cooler through the circulating water pump to cool indoor air, and the other part of the cooled circulating water enters the radiator to radiate heat of the intelligent power module.
2. The inverter air conditioning system according to claim 1, further comprising:
and the pressure stabilizing device is arranged on a pipeline between the first end part and the surface cooler and is used for maintaining the pressure of circulating water as a set value.
3. The inverter air conditioning system according to claim 1,
the evaporator comprises a first heat exchange section and a second heat exchange section which are in heat conduction contact, the first heat exchange section is used for circulating water, and the second heat exchange section is used for circulating a refrigerant;
the flow direction of water flow in the first heat exchange section is opposite to the flow direction of a refrigerant in the second heat exchange section, so that reverse heat exchange is carried out by utilizing the step temperature difference.
4. The inverter air conditioning system according to claim 1,
the evaporator comprises a plate evaporator.
5. The inverter air conditioning system of claim 1, wherein the heat sink comprises:
a fin assembly comprising a plurality of parallel fins, the fin assembly in thermally conductive contact with the smart power module; and the combination of (a) and (b),
the cooling tube is snakelike to wear to establish a plurality ofly the fin, the cooling tube is used for the circulation circulating water.
6. The inverter air conditioning system according to claim 1,
the surface cooler comprises a coil pipe.
7. The inverter air conditioning system of claim 5, further comprising:
and the axial flow fan is positioned on the side parts of the condenser and the radiator to perform air cooling and heat dissipation.
8. The inverter air conditioning system according to claim 1,
the throttling element comprises an electronic expansion valve or a capillary tube.
9. The inverter air conditioning system according to claim 1,
the bypass pipeline also comprises a first valve body, and the first valve body is used for controlling the circulating water flow of the bypass pipeline.
10. The inverter air conditioning system of claim 9, further comprising:
a control unit configured to control an opening degree of the first valve body according to a temperature of the radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220192214.3U CN217236132U (en) | 2022-01-24 | 2022-01-24 | Variable frequency air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220192214.3U CN217236132U (en) | 2022-01-24 | 2022-01-24 | Variable frequency air conditioning system |
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| CN217236132U true CN217236132U (en) | 2022-08-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024046165A1 (en) * | 2022-08-27 | 2024-03-07 | 广东美的暖通设备有限公司 | Air conditioning device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024046165A1 (en) * | 2022-08-27 | 2024-03-07 | 广东美的暖通设备有限公司 | Air conditioning device |
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