CN108344080A - Air-conditioning system - Google Patents
Air-conditioning system Download PDFInfo
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- CN108344080A CN108344080A CN201710053721.2A CN201710053721A CN108344080A CN 108344080 A CN108344080 A CN 108344080A CN 201710053721 A CN201710053721 A CN 201710053721A CN 108344080 A CN108344080 A CN 108344080A
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- heat exchanger
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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
- F24F5/0007—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 cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/14—Heat exchangers specially adapted for separate outdoor units
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/20—Electric components for separate outdoor units
- F24F1/24—Cooling of electric components
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
Description
技术领域technical field
本发明涉及空调系统，尤其涉及利用冷却用管路对电气元件进行冷却的空调系统。The present invention relates to an air-conditioning system, in particular to an air-conditioning system which uses a cooling pipeline to cool electrical components.
背景技术Background technique
以往，有一种空调系统，其包括由制冷剂管路依次连接的压缩机、室外热交换器和室内热交换器，室外热交换器与室内热交换器之间的制冷剂管路包括具有入口端和出口端的冷却用管路，冷却用管路具有通过金属板与发热的电气元件接触的电气元件冷却管。In the past, there was an air-conditioning system, which included a compressor, an outdoor heat exchanger, and an indoor heat exchanger sequentially connected by a refrigerant pipeline, and the refrigerant pipeline between the outdoor heat exchanger and the indoor heat exchanger included a And a cooling pipeline at the outlet end, the cooling pipeline has an electrical component cooling tube that contacts the heat-generating electrical component through a metal plate.
在上述空调系统中，能利用流经电气元件冷却管的因在室外热交换器中与空气等进行热交换而降温后的制冷剂对电气元件进行冷却，因此，与设置风扇等对电气元件进行冷却的情况相比，能简化结构，降低制造成本。In the above air conditioning system, the electrical components can be cooled by the refrigerant that flows through the cooling pipe of the electrical components due to the heat exchange with the air in the outdoor heat exchanger and the temperature of the electrical components is cooled. Compared with cooling, the structure can be simplified and the manufacturing cost can be reduced.
不过，在上述空调系统中，有时从入口端流入冷却用管路的制冷剂的温度会低于空气的露点温度，因此，电气元件冷却管的入口端侧会出现结露，在这种情况下，结露水可能会滴落至构成空调系统的电气部件等而引起短路等问题，并不理想。However, in the above-mentioned air conditioning system, the temperature of the refrigerant flowing into the cooling pipe from the inlet end may be lower than the dew point temperature of the air, so dew condensation may occur on the inlet end side of the electrical component cooling pipe. , Condensed water may drip onto the electrical components that make up the air conditioning system, causing problems such as short circuits, which is not ideal.
发明内容Contents of the invention
本发明正是为了解决上述问题而完成的，本发明的目的在于提供一种空调系统，其有助于避免构成制冷剂管路的一部分的电气元件冷却管结露。The present invention was made to solve the above-mentioned problems, and an object of the present invention is to provide an air conditioning system that helps prevent dew condensation on an electrical component cooling pipe constituting a part of a refrigerant pipe.
为了实现所述目的，本发明第一方面的空调系统包括由制冷剂管路依次连接的压缩机、室外热交换器和室内热交换器，所述室外热交换器与所述室内热交换器之间的制冷剂管路包括具有入口端和出口端的冷却用管路，其中，所述冷却用管路包括并联设置在所述入口端与所述出口端之间的第一支路和第二支路，在所述第一支路上设置有套管式的电气元件冷却管，在所述第二支路上设置有流量控制元件。In order to achieve the above object, the air conditioning system according to the first aspect of the present invention includes a compressor, an outdoor heat exchanger and an indoor heat exchanger sequentially connected by a refrigerant pipeline, and the connection between the outdoor heat exchanger and the indoor heat exchanger The refrigerant pipeline between them includes a cooling pipeline with an inlet port and an outlet port, wherein the cooling pipeline includes a first branch and a second branch arranged in parallel between the inlet port and the outlet port A sleeve-type electric component cooling pipe is arranged on the first branch, and a flow control element is arranged on the second branch.
根据本发明第一方面的空调系统，当入口端处的制冷剂的温度低于空气的露点温度时，通过对流量控制元件进行控制以使第二支路畅通，能使制冷剂流向第二支路，藉此，能提高流入第一支路的制冷剂的温度，因此，有助于避免第一支路中的经由金属板与发热的电气元件接触的电气元件冷却管因温度降低至空气的露点温度以下而在表面出现结露，从而避免结露水滴落至构成空调系统的电气部件等而引起短路等问题。According to the air conditioning system of the first aspect of the present invention, when the temperature of the refrigerant at the inlet port is lower than the dew point temperature of the air, the refrigerant can flow to the second branch by controlling the flow control element to make the second branch unblocked. In this way, the temperature of the refrigerant flowing into the first branch can be increased, so it helps to avoid the cooling tube of the electrical component in the first branch that is in contact with the heat-generating electrical component through the metal plate due to the temperature drop to the air. Condensation occurs on the surface below the dew point temperature, so as to avoid problems such as short circuit caused by dew condensation water dripping on the electrical components constituting the air conditioning system, etc.
本发明第二方面的空调系统是在本发明第一方面的空调系统的基础上，在所述制冷剂管路中设置有切换装置，该切换装置能在第一状态与第二状态之间切换，在所述第一状态下，从所述压缩机排出的制冷剂依次流过所述室外热交换器和所述室内热交换器而返回至所述压缩机，在所述第二状态下，从所述压缩机排出的制冷剂依次流过所述室内热交换器和所述室外热交换器而返回至所述压缩机，所述冷却用管路经由桥式回路连接在所述室外热交换器与所述室内热交换器之间，所述桥式回路使制冷剂在所述第一状态和所述第二状态下均从所述入口端流入所述冷却用管路并从所述出口端流出所述冷却用管路。The air-conditioning system of the second aspect of the present invention is based on the air-conditioning system of the first aspect of the present invention, a switching device is provided in the refrigerant pipeline, and the switching device can switch between the first state and the second state , in the first state, the refrigerant discharged from the compressor flows through the outdoor heat exchanger and the indoor heat exchanger in sequence and returns to the compressor, and in the second state, The refrigerant discharged from the compressor flows through the indoor heat exchanger and the outdoor heat exchanger in turn and returns to the compressor, and the cooling pipeline is connected to the outdoor heat exchanger through a bridge circuit. Between the heat exchanger and the indoor heat exchanger, the bridge circuit allows the refrigerant to flow from the inlet port into the cooling pipeline and from the outlet in both the first state and the second state The end flows out of the cooling pipeline.
根据本发明第二方面的空调系统，能根据需要在制冷运转与制热运转之间切换。According to the air conditioning system of the second aspect of the present invention, it is possible to switch between cooling operation and heating operation as necessary.
本发明第三方面的空调系统是在本发明第一方面的空调系统的基础上，所述流量控制元件是电动阀或电磁阀。The air conditioning system of the third aspect of the present invention is based on the air conditioning system of the first aspect of the present invention, wherein the flow control element is an electric valve or a solenoid valve.
根据本发明第三方面的空调系统，能方便地构成流量控制元件。According to the air conditioning system of the third aspect of the present invention, the flow control element can be easily constructed.
本发明第四方面的空调系统是在本发明第一方面的空调系统的基础上，所述电气元件冷却管包括外管和内管，所述外管的一端为封闭端，且另一端与所述出口端连接，所述内管的一端与所述入口端连接，且另一端在所述外管内的所述封闭端侧开口。The air conditioning system of the fourth aspect of the present invention is based on the air conditioning system of the first aspect of the present invention, the electrical component cooling pipe includes an outer pipe and an inner pipe, one end of the outer pipe is a closed end, and the other end is connected to the The outlet end is connected, one end of the inner tube is connected to the inlet end, and the other end is open at the closed end side of the outer tube.
根据本发明第四方面的空调系统，流经外管的制冷剂的温度因外管经由金属板与发热的电气元件接触而变得比流经内管的制冷剂的温度高，因此，即使从入口端流入内管的一端的制冷剂的温度低于空气的露点温度，也容易避免与金属板接触的外管的温度低于空气的露点温度而在表面出现结露，从而避免金属板因结露水而生锈。According to the air conditioning system of the fourth aspect of the present invention, the temperature of the refrigerant flowing through the outer pipe becomes higher than the temperature of the refrigerant flowing through the inner pipe due to the contact between the outer pipe and the heat-generating electrical component via the metal plate, and therefore, even from The temperature of the refrigerant flowing into the inner tube at the inlet port is lower than the dew point temperature of the air, and it is also easy to avoid condensation on the surface of the outer tube in contact with the metal plate, which is lower than the dew point temperature of the air, thereby preventing the metal plate from being condensed due to condensation. Dewy and rusty.
本发明第五方面的空调系统是在本发明第四方面的空调系统的基础上，所述空调系统包括多个所述电气元件冷却管，多个所述电气元件冷却管的内管的一端汇集成一个总入口端以与所述入口端连接，多个所述电气元件冷却管的外管的另一端汇集成一个总出口端以与所述出口端连接。The air-conditioning system of the fifth aspect of the present invention is based on the air-conditioning system of the fourth aspect of the present invention, the air-conditioning system includes a plurality of the electrical component cooling pipes, one end of the inner pipes of the plurality of electrical component cooling pipes gathers A general inlet port is formed to be connected with the inlet port, and the other ends of the outer pipes of the plurality of electrical component cooling pipes are collected into a general outlet port for connection with the outlet port.
根据本发明第五方面的电气元件冷却结构，能以简单的结构提高冷却能力且避免产生结露水。According to the electrical component cooling structure of the fifth aspect of the present invention, it is possible to improve the cooling capacity and avoid the generation of dew condensation water with a simple structure.
本发明第六方面的空调系统是在本发明第一方面的空调系统的基础上，在所述第一支路中，在所述电气元件冷却管与所述入口端侧之间设置有节流部。The air conditioning system of the sixth aspect of the present invention is based on the air conditioning system of the first aspect of the present invention, in the first branch, a throttling is provided between the electrical component cooling pipe and the inlet end side department.
根据本发明第六方面的空调系统，有助于提高流入电气元件冷却管的制冷剂的温度，从而进一步减小电气元件冷却管因温度降低至空气的露点温度以下而在表面出现结露的可能性。According to the air conditioning system of the sixth aspect of the present invention, it helps to increase the temperature of the refrigerant flowing into the cooling pipe of the electrical component, thereby further reducing the possibility of dew condensation on the surface of the cooling pipe of the electrical component due to the temperature dropping below the dew point temperature of the air sex.
本发明第七方面的空调系统是在本发明第一方面的空调系统的基础上，所述室外热交换器是水热交换器。The air conditioning system of the seventh aspect of the present invention is based on the air conditioning system of the first aspect of the present invention, wherein the outdoor heat exchanger is a water heat exchanger.
根据本发明第七方面的空调系统，与空冷热交换器相比，能增大室外热交换器的换热效率。According to the air conditioning system of the seventh aspect of the present invention, the heat exchange efficiency of the outdoor heat exchanger can be increased compared with that of the air-cooled heat exchanger.
发明效果Invention effect
根据本发明的空调系统，当入口端处的制冷剂的温度低于空气的露点温度时，通过对流量控制元件进行控制以使第二支路畅通，能使制冷剂流向第二支路，藉此，能提高流入第一支路的制冷剂的温度，因此，有助于避免第一支路中的经由金属板与发热的电气元件接触的电气元件冷却管因温度降低至空气的露点温度以下而在表面出现结露，从而避免结露水滴落至构成空调系统的电气部件等而引起短路等问题。According to the air conditioning system of the present invention, when the temperature of the refrigerant at the inlet end is lower than the dew point temperature of the air, by controlling the flow control element to make the second branch unblocked, the refrigerant can flow to the second branch, by This can increase the temperature of the refrigerant flowing into the first branch, so it helps to prevent the cooling pipe of the electrical component in the first branch that is in contact with the heat-generating electrical component through the metal plate from falling below the dew point temperature of the air due to the temperature drop. Condensation occurs on the surface, thereby avoiding problems such as short circuits caused by condensation water dripping onto electrical components constituting the air conditioning system, etc.
附图说明Description of drawings
图1是表示本发明实施方式1的空调系统的回路结构的示意图。FIG. 1 is a schematic diagram showing a circuit configuration of an air conditioning system according to Embodiment 1 of the present invention.
图2是表示本发明实施方式2的空调系统的回路结构的示意图。Fig. 2 is a schematic diagram showing a circuit configuration of an air conditioning system according to Embodiment 2 of the present invention.
图3是表示可作为本发明中的电气元件冷却管使用的套管的示意图。Fig. 3 is a schematic view showing a bushing that can be used as an electric component cooling pipe in the present invention.
图4是表示本发明实施方式1的变形例的空调系统的回路结构的示意图。4 is a schematic diagram showing a circuit configuration of an air conditioning system according to a modified example of Embodiment 1 of the present invention.
图5是表示本发明实施方式1的另一变形例的空调系统的回路结构的示意图。5 is a schematic diagram showing a circuit configuration of an air conditioning system according to another modified example of Embodiment 1 of the present invention.
(符号说明)(Symbol Description)
10 压缩机10 compressors
20 切换装置20 switching device
30 室外热交换器30 outdoor heat exchanger
40 储罐40 storage tanks
50 室内热交换器50 indoor heat exchanger
R 制冷剂管路R refrigerant line
CR 冷却用管路CR cooling pipe
CRa 入口端CRa entry port
CRb 出口端CRb outlet port
CR1 第一支路CR1 first leg
CR2 第二支路CR2 second leg
CP 电气元件冷却管CP electrical components cooling tube
CP1 外管CP1 outer tube
CP2 内管CP2 inner tube
CD 流量调节装置CD flow regulator
CM 流量控制元件CM flow control element
MB 金属板MB sheet metal
BC 桥式回路BC bridge loop
BC1 第一桥路BC1 First Bridge Road
BC2 第二桥路BC2 Second Bridge Road
CK 单向阀CK check valve
BP 旁通流路BP bypass flow path
DM 旁通流路流量控制元件DM bypass flow control element
具体实施方式Detailed ways
下面，结合附图对本发明实施方式的空调系统进行说明。Next, the air conditioning system according to the embodiment of the present invention will be described with reference to the accompanying drawings.
<实施方式1><Embodiment 1>
下面参照附图，对本发明实施方式1的空调系统进行说明，其中，图1是表示本发明实施方式1的空调系统的回路结构的示意图。The air-conditioning system according to Embodiment 1 of the present invention will be described below with reference to the accompanying drawings, wherein FIG. 1 is a schematic diagram showing the circuit structure of the air-conditioning system according to Embodiment 1 of the present invention.
如图1所示，空调系统包括由制冷剂管路R依次连接的压缩机10、室外热交换器30和室内热交换器50，所述室外热交换器30与所述室内热交换器50之间的制冷剂管路R包括具有入口端CRa和出口端CRb的冷却用管路CR。As shown in FIG. 1, the air conditioning system includes a compressor 10, an outdoor heat exchanger 30, and an indoor heat exchanger 50 sequentially connected by a refrigerant pipeline R, and the connection between the outdoor heat exchanger 30 and the indoor heat exchanger 50 is The refrigerant line R between them includes a cooling line CR having an inlet port CRa and an outlet port CRb.
此外，所述冷却用管路CR包括并联设置在所述入口端CRa与所述出口端CRb之间的第一支路CR1和第二支路CR2，在所述第一支路CR1上设置有套管式的电气元件冷却管CP，在所述第二支路CR2上设置有流量控制元件CM。In addition, the cooling pipeline CR includes a first branch circuit CR1 and a second branch circuit CR2 arranged in parallel between the inlet port CRa and the outlet port CRb, and the first branch circuit CR1 is provided with The sleeve-type electrical component cooling pipe CP is provided with a flow control element CM on the second branch circuit CR2.
此处，作为流量控制元件CM，可采用电动阀或电磁阀。Here, as the flow control element CM, an electric valve or a solenoid valve can be used.
并且，作为室外热交换器30，可采用水热交换器或空冷热交换器。Furthermore, as the outdoor heat exchanger 30, a water heat exchanger or an air-cooled heat exchanger can be used.
此外，在本实施方式中，在所述室外热交换器30与冷却用管路CR之间的制冷剂管路R上还设置有流量调节装置CD和储罐40。In addition, in this embodiment, a flow regulating device CD and an accumulator 40 are further provided on the refrigerant pipeline R between the outdoor heat exchanger 30 and the cooling pipeline CR.
此处，作为流量调节装置CD，可采用电动阀。储罐40用于临时积存制冷剂。Here, as the flow regulating device CD, an electric valve can be used. The storage tank 40 is used to temporarily store refrigerant.
下面对本发明实施方式1的空调系统的运转进行说明。Next, the operation of the air conditioning system according to Embodiment 1 of the present invention will be described.
在运转时，由压缩机10压缩后从压缩机10的排出端排出的制冷剂输入室外热交换器50进行热交换而温度降低，然后，在流过流量调节装置CD后，流入储罐40。During operation, the refrigerant compressed by the compressor 10 and discharged from the discharge end of the compressor 10 enters the outdoor heat exchanger 50 for heat exchange to reduce its temperature, and then flows into the accumulator 40 after flowing through the flow regulating device CD.
接着，从储罐40流出的制冷剂流入冷却用管路CR，以利用冷却用管路CR(具体是通过第一支路CR1上的与金属板MB接触的电气元件冷却管CP)对电气元件进行冷却。此时，当入口端CRa处的制冷剂的温度低于空气的露点温度时，对流量控制元件CM进行控制，以使第二支路CR2畅通(即从入口端CRa流入第二支路CR2的制冷剂可经由流量控制元件CM流动至出口端CRb)。Next, the refrigerant flowing out from the accumulator 40 flows into the cooling pipe CR to cool the electrical components by using the cooling pipe CR (specifically, through the electrical component cooling pipe CP on the first branch CR1 in contact with the metal plate MB). Allow to cool. At this time, when the temperature of the refrigerant at the inlet port CRa is lower than the dew point temperature of the air, the flow control element CM is controlled so that the second branch CR2 is unblocked (that is, the refrigerant flowing into the second branch CR2 from the inlet port CRa The refrigerant can flow to the outlet port CRb) via the flow control element CM.
然后，制冷剂流出冷却用管路CR，而流入室内热交换器50，在该室内热交换器50中进行热交换。Then, the refrigerant flows out of the cooling pipe CR, flows into the indoor heat exchanger 50 , and exchanges heat in the indoor heat exchanger 50 .
最后，制冷剂流出室内热交换器50，而返回至压缩机10的吸入端。Finally, the refrigerant flows out of the indoor heat exchanger 50 and returns to the suction side of the compressor 10 .
根据本实施方式的空调系统，当入口端处CRa的制冷剂的温度低于空气的露点温度时，通过对流量控制元件CM进行控制以使第二支路CR2畅通，可使制冷剂流向第二支路CR2，藉此，能提高流入第一支路CR1的制冷剂的温度，因此，有助于避免第一支路CR1中的经由金属板与发热的电气元件接触的电气元件冷却管CR因温度降低至空气的露点温度以下而在表面出现结露，从而避免结露水滴落至构成空调系统的电气部件等而引起短路等问题。According to the air conditioning system of this embodiment, when the temperature of the refrigerant at the inlet end CRa is lower than the dew point temperature of the air, the flow control element CM is controlled to make the second branch CR2 unblocked, so that the refrigerant can flow to the second branch. The branch circuit CR2, whereby the temperature of the refrigerant flowing into the first branch circuit CR1 can be increased, thus helping to prevent the electrical component cooling pipe CR in the first branch circuit CR1 from being in contact with the heat-generating electrical components via the metal plate. When the temperature drops below the dew point temperature of the air, dew condensation occurs on the surface, so as to avoid problems such as short circuit caused by dew condensation water dripping on the electrical components that make up the air conditioning system, etc.
<实施方式2><Embodiment 2>
下面参照图2，对本发明实施方式2的空调系统进行说明，其中，图2是表示本发明实施方式2的空调系统的回路结构的示意图。Next, the air conditioning system according to Embodiment 2 of the present invention will be described with reference to FIG. 2 , wherein FIG. 2 is a schematic diagram showing the circuit structure of the air conditioning system according to Embodiment 2 of the present invention.
本实施方式的空调系统的结构与上述实施方式1的空调系统基本相同，不同之处在于，在本实施方式的空调系统中设置有切换装置20和桥式回路BC。The configuration of the air-conditioning system of this embodiment is basically the same as that of the above-described first embodiment, except that the switching device 20 and the bridge circuit BC are provided in the air-conditioning system of this embodiment.
具体而言，如图2所示，在所述制冷剂管路R中设置有切换装置20，该切换装置20能在第一状态与第二状态之间切换，在所述第一状态下，从所述压缩机10排出的制冷剂依次流过所述室外热交换器30和所述室内热交换器50而返回至所述压缩机10，在所述第二状态下，从所述压缩机10排出的制冷剂依次流过所述室内热交换器50和所述室外热交换器30而返回至所述压缩机10。Specifically, as shown in FIG. 2, a switching device 20 is provided in the refrigerant pipeline R, and the switching device 20 can switch between a first state and a second state. In the first state, The refrigerant discharged from the compressor 10 sequentially flows through the outdoor heat exchanger 30 and the indoor heat exchanger 50 and returns to the compressor 10. In the second state, the refrigerant from the compressor The refrigerant discharged from the compressor 10 flows through the indoor heat exchanger 50 and the outdoor heat exchanger 30 in sequence and returns to the compressor 10 .
此外，所述冷却用管路CR经由桥式回路BC连接在所述室外热交换器30与所述室内热交换器50之间，所述桥式回路BC使制冷剂在所述第一状态和所述第二状态下均从所述入口端流入所述冷却用管路CR并从所述出口端流出所述冷却用管路CR。In addition, the cooling pipeline CR is connected between the outdoor heat exchanger 30 and the indoor heat exchanger 50 via a bridge circuit BC, and the bridge circuit BC keeps the refrigerant in the first state and In the second state, both flow into the cooling pipeline CR from the inlet port and flow out of the cooling pipeline CR from the outlet port.
此处，桥式回路BC包括多个单向阀CK。具体而言，桥式回路BC包括并联在储罐40与室内热交换器50之间的第一桥路BC1和第二桥路BC2，在第一桥路BC1和第二桥路BC2上分别设置有两个单向阀CK。并且，所述冷却用管路CR的入口端CRa连接于第一桥路BC1上的两个单向阀CK之间，所述冷却用管路CR的出口端CRb连接于第二桥路BC2上的两个单向阀CK之间。Here, the bridge circuit BC comprises a plurality of one-way valves CK. Specifically, the bridge circuit BC includes a first bridge BC1 and a second bridge BC2 connected in parallel between the storage tank 40 and the indoor heat exchanger 50, respectively set on the first bridge BC1 and the second bridge BC2 There are two check valves CK. In addition, the inlet end CRa of the cooling pipeline CR is connected between the two check valves CK on the first bridge BC1, and the outlet CRb of the cooling pipeline CR is connected to the second bridge BC2. Between the two check valves CK.
根据本实施方式的空调系统，能起到与上述实施方式1的空调系统基本相同的技术效果。According to the air-conditioning system of the present embodiment, basically the same technical effects as those of the air-conditioning system of Embodiment 1 described above can be achieved.
此外，根据本实施方式的空调系统，能根据需要在制冷运转与制热运转之间切换。In addition, according to the air conditioning system of this embodiment, it is possible to switch between cooling operation and heating operation as necessary.
上面结合附图对本发明进行了示例性描述，显然本发明的具体实现并不受上述实施方式的限制。The present invention has been exemplarily described above in conjunction with the accompanying drawings, and it is obvious that the specific implementation of the present invention is not limited by the foregoing embodiments.
例如，在上述实施方式中，如图3所示，电气元件冷却管CP也可以是包括外管CP1和内管CP2的套管，所述外管CP1的一端(图中的上端)为封闭端，且另一端(图中的下端)与所述出口端CRb连接，所述内管CP2的一端(图中的下端)与所述入口端CRa连接，且另一端(图中的上端)在所述外管CP1内的所述封闭端侧开口。此时，流经外管CP1的制冷剂的温度因外管CP1经由金属板与发热的电气元件接触而变得比流经内管CP2的制冷剂的温度高，因此，即使从入口端CRa流入内管CP2的一端的制冷剂的温度低于空气的露点温度，也容易避免与金属板接触的外管CP1的温度低于空气的露点温度而在表面出现结露，从而避免结露水滴落至构成空调系统的电气部件等而引起短路等问题。For example, in the above-mentioned embodiment, as shown in FIG. 3 , the electrical component cooling pipe CP may also be a casing comprising an outer pipe CP1 and an inner pipe CP2, and one end (the upper end in the figure) of the outer pipe CP1 is a closed end , and the other end (the lower end in the figure) is connected to the outlet port CRb, one end (the lower end in the figure) of the inner pipe CP2 is connected to the inlet port CRa, and the other end (the upper end in the figure) is in the The closed end side in the outer pipe CP1 is open. At this time, the temperature of the refrigerant flowing through the outer pipe CP1 becomes higher than the temperature of the refrigerant flowing through the inner pipe CP2 because the outer pipe CP1 contacts the heat-generating electrical components through the metal plate. The temperature of the refrigerant at one end of the inner pipe CP2 is lower than the dew point temperature of the air, and it is also easy to prevent the temperature of the outer pipe CP1 in contact with the metal plate from being lower than the dew point temperature of the air to cause dew condensation on the surface, thereby avoiding dew condensation from dripping to the Electrical components constituting the air-conditioning system, etc., may cause problems such as short circuits.
在这种情况下，也可设置多个电气元件冷却管CP，并将多个电气元件冷却管CP的内管CP2的一端汇集成一个总入口端以与所述入口端CRa连接，将多个电气元件冷却管的外管CP1的另一端汇集成一个总出口端以与所述出口端CRb连接。这样，便能以简单的结构提高冷却能力且避免产生结露水。In this case, a plurality of electrical component cooling pipes CP can also be provided, and one end of the inner pipe CP2 of the plurality of electrical component cooling pipes CP can be collected into one general inlet port to be connected with the inlet port CRa, and multiple The other end of the outer pipe CP1 of the electrical component cooling pipe is converged into a general outlet port to be connected with the outlet port CRb. In this way, it is possible to improve the cooling capacity and avoid the generation of dew condensation water with a simple structure.
此外，在上述实施方式1中，如图4所示，还可设置旁通流路BP，该旁通流路BP的一端连接于压缩机10与室外热交换器30之间，另一端连接于储罐40与流量调节装置CD之间，并且，在旁通流路BP上设置有旁通流路流量控制元件DM。In addition, in Embodiment 1 above, as shown in FIG. 4 , a bypass flow path BP may be provided. One end of the bypass flow path BP is connected between the compressor 10 and the outdoor heat exchanger 30 , and the other end is connected to the outdoor heat exchanger 30 . Between the storage tank 40 and the flow regulating device CD, and on the bypass flow path BP, a bypass flow path flow control element DM is provided.
同样，在上述实施方式2中，也可设置与图4一样的旁通流路BP和旁通流路流量控制元件DM。Similarly, in the above-mentioned second embodiment, the same bypass flow path BP and bypass flow control element DM as those in FIG. 4 may be provided.
此外，在上述实施方式1中，如图5所示，在所述第一支路CR1中，还可在所述电气元件冷却管CP与所述入口端CRa侧之间设置节流部TR。In addition, in the first embodiment described above, as shown in FIG. 5 , in the first branch circuit CR1 , a throttle portion TR may be provided between the electrical component cooling pipe CP and the inlet end CRa side.
Claims (7)
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| CN201710053721.2A CN108344080A (en) | 2017-01-22 | 2017-01-22 | Air-conditioning system |
| PCT/JP2017/047000 WO2018135277A1 (en) | 2017-01-22 | 2017-12-27 | Air conditioning system |
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| WO2021103370A1 (en) * | 2019-11-26 | 2021-06-03 | 广东美的制冷设备有限公司 | Heat dissipation assembly, air conditioning system, and heat dissipation control method thereof |
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