WO2020168686A1 - Air conditioner indoor unit capable of improving indoor humid environment - Google Patents

Air conditioner indoor unit capable of improving indoor humid environment Download PDF

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Publication number
WO2020168686A1
WO2020168686A1 PCT/CN2019/098879 CN2019098879W WO2020168686A1 WO 2020168686 A1 WO2020168686 A1 WO 2020168686A1 CN 2019098879 W CN2019098879 W CN 2019098879W WO 2020168686 A1 WO2020168686 A1 WO 2020168686A1
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heat exchanger
indoor
auxiliary
air
indoor unit
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PCT/CN2019/098879
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French (fr)
Chinese (zh)
Inventor
徐来福
杨亚华
谭秋晖
刘宝山
张宝生
夏金发
王春煦
任奎
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南京天加环境科技有限公司
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Priority to CN201910121249.0A priority Critical patent/CN109631168A/en
Priority to CN201910121249.0 priority
Application filed by 南京天加环境科技有限公司 filed Critical 南京天加环境科技有限公司
Publication of WO2020168686A1 publication Critical patent/WO2020168686A1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0059Indoor units, e.g. fan coil units characterised by heat exchangers

Abstract

Disclosed is an air conditioner indoor unit capable of improving an indoor humid environment, the indoor unit comprising an air inlet, an air outlet and an indoor heat exchanger. The indoor heat exchanger comprises a main heat exchanger (1) and an auxiliary heat exchanger (2) that are connected to each other in series, wherein the auxiliary heat exchanger (2) is close to the air outlet; the position, between the main heat exchanger (1) and the auxiliary heat exchanger (2), of a pipeline is provided with a main electronic expansion valve (5); the position at which a pipeline connects the auxiliary heat exchanger (2) to an outdoor unit is provided with an auxiliary electronic expansion valve (4); and the air inlet is provided with an indoor fan (3). The indoor unit is reasonable in design, simple in structure, convenient to control, and capable of increasing the amount of dehumidification and adjusting the temperature of outlet air during dehumidification. In addition, the indoor unit can increase the indoor humidity during heating, thereby greatly improving the use comfort of the product and making same worthy of popularization.

Description

一种能够改善室内湿度环境的空调室内机Air conditioner indoor unit capable of improving indoor humidity environment 技术领域Technical field
本发明涉及一种空调构件,尤其是一种室内机,具体的说是一种能够改善室内湿度环境的空调室内机。The invention relates to an air conditioner component, in particular an indoor unit, in particular to an air conditioner indoor unit capable of improving the indoor humidity environment.
背景技术Background technique
目前,常规的空调在除湿模式时,为低风运行,循环风量小导致除湿量少,并且容易使蒸发器结冰,影响制冷系统的可靠性。另外循环风量小还要保证除湿效果其蒸发温度必然很低,会造成室内机出风温度过低引起人体不适,与外部湿空气混合后还会造成墙面凝露。而在制热模式时,容易造成室内空气干燥,影响用户感受。At present, the conventional air conditioner operates at low wind in the dehumidification mode. The small circulating air volume results in a small amount of dehumidification, and it is easy to freeze the evaporator, which affects the reliability of the refrigeration system. In addition, if the circulating air volume is small, it is necessary to ensure the dehumidification effect. The evaporation temperature must be very low, which will cause the indoor unit's air outlet temperature to be too low and cause human discomfort. In the heating mode, the indoor air is likely to be dry, which affects the user experience.
发明内容Summary of the invention
本发明的目的是针对现有技术的不足,提供一种能够改善室内湿度环境的空调室内机,可以在除湿时,增大除湿量,并调节出风温度,提升产品使用的舒适性。The purpose of the present invention is to address the shortcomings of the prior art and provide an air conditioner indoor unit that can improve the indoor humidity environment, which can increase the dehumidification capacity and adjust the air outlet temperature during dehumidification, thereby improving the comfort of product use.
本发明的技术方案是:The technical scheme of the present invention is:
一种能够改善室内湿度环境的空调室内机,包括进风口、出风口和室内换热器,该室内换热器包括相互串联连接的主换热器和辅换热器;该辅换热器临近所述出风口;所述主换热器和辅换热器之间的管路上设有主电子膨胀阀;所述辅换热器与室外机相连的管路上设有辅电子膨胀阀;所述进风口设有室内风机。An air conditioner indoor unit capable of improving indoor humidity environment, comprising an air inlet, an air outlet and an indoor heat exchanger. The indoor heat exchanger includes a main heat exchanger and an auxiliary heat exchanger connected in series; the auxiliary heat exchanger is adjacent The air outlet; the pipeline between the main heat exchanger and the auxiliary heat exchanger is provided with a main electronic expansion valve; the pipeline connecting the auxiliary heat exchanger and the outdoor unit is provided with an auxiliary electronic expansion valve; The air inlet is equipped with an indoor fan.
进一步的,所述主换热器和辅换热器为相互分离或相互靠近。Further, the main heat exchanger and the auxiliary heat exchanger are separated or close to each other.
进一步的,所述室内机出风口处设有加湿模块。Further, a humidification module is provided at the air outlet of the indoor unit.
进一步的,所述室内风机为离心风机。Further, the indoor fan is a centrifugal fan.
本发明的有益效果:The beneficial effects of the present invention:
本发明设计合理,结构简单,控制方便,可以在除湿时,增大除湿量,并调节出风温度。而且,还可在制热时提升室内湿度,极大的提升了产品使用的舒适性,值得推广。The invention has reasonable design, simple structure and convenient control, can increase the dehumidification capacity and adjust the outlet air temperature during dehumidification. Moreover, it can also increase the indoor humidity during heating, which greatly improves the comfort of the product and is worthy of promotion.
附图说明Description of the drawings
图1是本发明实施例一的结构示意图。Fig. 1 is a schematic structural diagram of Embodiment 1 of the present invention.
图2是本发明实施例二的结构示意图。Figure 2 is a schematic structural diagram of Embodiment 2 of the present invention.
其中:1-主换热器,2-辅换热器,3-室内风机,4-辅电子膨胀阀,5-主电子膨胀阀,6-加湿模块,7-室外机换热器,8-室外风机,9-四通阀,10-压缩机;11-气液分离器。Among them: 1- main heat exchanger, 2- auxiliary heat exchanger, 3- indoor fan, 4- auxiliary electronic expansion valve, 5- main electronic expansion valve, 6-humidification module, 7- outdoor unit heat exchanger, 8- Outdoor fan, 9-four-way valve, 10-compressor; 11-gas-liquid separator.
具体实施方式detailed description
下面结合附图和实施例对本发明作进一步的说明。The present invention will be further described below in conjunction with the drawings and embodiments.
实施例一。Example one.
如图1所示,一种能够改善室内湿度环境的空调室内机,包括进风口、出风口和室内换热器,该室内换热器包括相互串联连接的主换热器1和辅换热器2。该主换热器1和辅换热器2相互分离,且使所述辅换热器2临近所述出风口。所述主换热器1和辅换热器2之间的管路上设有主电子膨胀阀5。所述辅换热器2与室外机相连的管路上设有辅电子膨胀阀4。所述进风口设有室内风机3,以便加强出风量。优选的,该室内风机3可以为离心风机。所述室内机出风口处设有加湿模块6,可在制热模式时,通过该加湿模块6向室内输送湿气,改善室内湿度环境。As shown in Figure 1, an air conditioner indoor unit capable of improving the indoor humidity environment includes an air inlet, an air outlet and an indoor heat exchanger. The indoor heat exchanger includes a main heat exchanger 1 and an auxiliary heat exchanger connected in series. 2. The main heat exchanger 1 and the auxiliary heat exchanger 2 are separated from each other, and the auxiliary heat exchanger 2 is close to the air outlet. A main electronic expansion valve 5 is provided in the pipeline between the main heat exchanger 1 and the auxiliary heat exchanger 2. The pipeline connecting the auxiliary heat exchanger 2 and the outdoor unit is provided with an auxiliary electronic expansion valve 4. The air inlet is provided with an indoor fan 3 to increase the air output. Preferably, the indoor fan 3 may be a centrifugal fan. A humidification module 6 is provided at the air outlet of the indoor unit, and in the heating mode, the humidification module 6 can deliver moisture to the room to improve the indoor humidity environment.
与本发明相配合的室外机包括压缩机10、四通阀9、室外机换热器7和气液分离器11,并与本发明连接构成冷媒循环回路。其中,所述室外机换热器7连接所述辅换热器2。所述气液分离器连接所述主换热器1。所述室外机换热器7上还设有室外风机8,以便加强换热效果。The outdoor unit matched with the present invention includes a compressor 10, a four-way valve 9, an outdoor unit heat exchanger 7 and a gas-liquid separator 11, and is connected with the present invention to form a refrigerant circulation circuit. Wherein, the outdoor unit heat exchanger 7 is connected to the auxiliary heat exchanger 2. The gas-liquid separator is connected to the main heat exchanger 1. The outdoor unit heat exchanger 7 is also provided with an outdoor fan 8 to enhance the heat exchange effect.
实施例二。Example two.
如图2所示。该实施例与实施例一基本相同,主要区别在于本实施例中的主换热器和辅换热器相互靠近,可以减小空间占用,进而减小室内机体积,满足不同机型的需求。as shown in picture 2. This embodiment is basically the same as the first embodiment. The main difference is that the main heat exchanger and the auxiliary heat exchanger in this embodiment are close to each other, which can reduce the space occupation, thereby reducing the volume of the indoor unit, and meeting the requirements of different models.
本发明的工作过程为:The working process of the present invention is:
制冷模式。如图1或图2中的制冷箭头所示,当室内回风温度大于室内允许温度的上限时,压缩机10开启运行,制冷剂经空调室外机换热器7冷凝后流向室内机,先经过辅电子膨胀阀4和辅换热器2,再经过主电子膨胀阀5和主换热器1,最后回到空调室外机。在此过程中主电子膨胀阀5全开,不起节流作用。辅电子膨胀阀4按常规进行开度调节,起节流作用。此时,主、辅换热器均作为蒸发器使用,加大制冷剂的蒸发,增强室内机的制冷效果。Cooling mode. As shown by the refrigeration arrow in Figure 1 or Figure 2, when the indoor return air temperature is greater than the upper limit of the indoor allowable temperature, the compressor 10 is turned on and the refrigerant flows to the indoor unit after being condensed by the outdoor unit heat exchanger 7 of the air conditioner. The auxiliary electronic expansion valve 4 and auxiliary heat exchanger 2 pass through the main electronic expansion valve 5 and the main heat exchanger 1, and finally return to the outdoor unit of the air conditioner. During this process, the main electronic expansion valve 5 is fully opened and does not have a throttling effect. The auxiliary electronic expansion valve 4 adjusts the opening degree according to the routine, and plays the role of throttling. At this time, both the main and auxiliary heat exchangers are used as evaporators to increase the evaporation of refrigerant and enhance the cooling effect of the indoor unit.
除湿模式。制冷剂按制冷模式流向进行流动。其中,主电子膨胀阀5作为主节流器件,主换热器1作为蒸发器使用,可以增大除湿量。辅电子膨胀阀4是一种粗调或全开状态,对冷凝后的高压制冷剂起到微小的节流降压作用,使得流经辅换热器的冷媒的温度远高于流经主换热器1的冷媒温度,进而使出风温度升高,消除除湿对用户造成的不适感。Dehumidification mode. The refrigerant flows in the direction of the cooling mode. Among them, the main electronic expansion valve 5 is used as a main throttling device, and the main heat exchanger 1 is used as an evaporator, which can increase the dehumidification capacity. The auxiliary electronic expansion valve 4 is a coarse adjustment or fully open state, which has a slight throttling and pressure reduction effect on the condensed high-pressure refrigerant, so that the temperature of the refrigerant flowing through the auxiliary heat exchanger is much higher than that of the refrigerant flowing through the main heat exchanger. The temperature of the refrigerant in the heater 1 increases the temperature of the outlet air, thereby eliminating the discomfort caused by the dehumidification to the user.
制热模式。如图1或图2中的制热箭头所示,当室内回风温度低于室内允许温度的下限时,压缩机开启运行,制冷剂从室外机换热器蒸发后经压缩机后流向室内机。先经过主换热器1冷凝后流向主电子膨胀阀5,再经过辅换热器2冷凝后流向辅电子膨胀阀4,最后 流向室外机。在此过程中主电子膨胀阀5全开,不起节流作用。辅电子膨胀阀4按常规进行开度调节,控制冷媒的节流,进而控制空调的制热程度。Heating mode. As shown by the heating arrow in Figure 1 or Figure 2, when the indoor return air temperature is lower than the lower limit of the indoor allowable temperature, the compressor starts to run, and the refrigerant evaporates from the outdoor unit heat exchanger and flows through the compressor to the indoor unit. . It is first condensed in the main heat exchanger 1 and then flows to the main electronic expansion valve 5, then flows to the auxiliary electronic expansion valve 4 after being condensed in the auxiliary heat exchanger 2, and finally flows to the outdoor unit. During this process, the main electronic expansion valve 5 is fully opened and does not have a throttling effect. The auxiliary electronic expansion valve 4 adjusts the opening degree according to the routine, controls the throttling of the refrigerant, and then controls the heating degree of the air conditioner.
加湿模式。当室内环境需要加湿时,开启出风口处的加湿模块6,提高出风的含湿量,达到加湿室内环境的目的。Humidification mode. When the indoor environment needs to be humidified, the humidification module 6 at the air outlet is turned on to increase the moisture content of the air to achieve the purpose of humidifying the indoor environment.
本发明未涉及部分均与现有技术相同或可采用现有技术加以实现。The parts not involved in the present invention are the same as the prior art or can be implemented by the prior art.

Claims (4)

  1. 一种能够改善室内湿度环境的空调室内机,包括进风口、出风口和室内换热器,其特征是该室内换热器包括相互串联连接的主换热器和辅换热器;该辅换热器临近所述出风口;所述主换热器和辅换热器之间的管路上设有主电子膨胀阀;所述辅换热器与室外机相连的管路上设有辅电子膨胀阀;所述进风口设有室内风机。An air conditioner indoor unit capable of improving indoor humidity environment, comprising an air inlet, an air outlet and an indoor heat exchanger, characterized in that the indoor heat exchanger comprises a main heat exchanger and an auxiliary heat exchanger connected in series; the auxiliary heat exchanger The heat exchanger is close to the air outlet; the pipeline between the main heat exchanger and the auxiliary heat exchanger is provided with a main electronic expansion valve; the pipeline connecting the auxiliary heat exchanger and the outdoor unit is provided with an auxiliary electronic expansion valve ; The air inlet is provided with an indoor fan.
  2. 根据权利要求1所述的能够改善室内湿度环境的空调室内机,其特征是所述主换热器和辅换热器为相互分离或相互靠近。The air conditioner indoor unit capable of improving the indoor humidity environment according to claim 1, wherein the main heat exchanger and the auxiliary heat exchanger are separated or close to each other.
  3. 根据权利要求1所述的能够改善室内湿度环境的空调室内机,其特征是所述室内机出风口处设有加湿模块。The air-conditioning indoor unit capable of improving the indoor humidity environment according to claim 1, wherein a humidifying module is provided at the air outlet of the indoor unit.
  4. 根据权利要求1所述的能够改善室内湿度环境的空调室内机,其特征是所述室内风机为离心风机。The air conditioner indoor unit capable of improving the indoor humidity environment according to claim 1, wherein the indoor fan is a centrifugal fan.
PCT/CN2019/098879 2019-02-19 2019-08-01 Air conditioner indoor unit capable of improving indoor humid environment WO2020168686A1 (en)

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Publication number Priority date Publication date Assignee Title
CN109631168A (en) * 2019-02-19 2019-04-16 南京天加环境科技有限公司 A kind of air conditioner indoor unit that can improve indoor humidity environment
CN111854007A (en) * 2019-04-28 2020-10-30 上海科力玛数据科技有限公司 High-water-temperature and large-temperature-difference air conditioner terminal equipment
CN110657489B (en) * 2019-10-25 2021-04-13 南京天加环境科技有限公司 Improved dehumidification reheating system and control method thereof

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JP2003097865A (en) * 2001-09-25 2003-04-03 Daikin Ind Ltd Air conditioner
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