WO2024016571A1 - 单向分流装置和可变分流换热器 - Google Patents

单向分流装置和可变分流换热器 Download PDF

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Publication number
WO2024016571A1
WO2024016571A1 PCT/CN2022/138612 CN2022138612W WO2024016571A1 WO 2024016571 A1 WO2024016571 A1 WO 2024016571A1 CN 2022138612 W CN2022138612 W CN 2022138612W WO 2024016571 A1 WO2024016571 A1 WO 2024016571A1
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WIPO (PCT)
Prior art keywords
refrigerant
refrigerant port
way
blocking
port
Prior art date
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PCT/CN2022/138612
Other languages
English (en)
French (fr)
Inventor
丁爽
王飞
崔文娟
蒋骏
王麒澄
Original Assignee
青岛海尔空调器有限总公司
青岛海尔空调电子有限公司
海尔智家股份有限公司
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Application filed by 青岛海尔空调器有限总公司, 青岛海尔空调电子有限公司, 海尔智家股份有限公司 filed Critical 青岛海尔空调器有限总公司
Publication of WO2024016571A1 publication Critical patent/WO2024016571A1/zh

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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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • 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
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • 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
    • F25B39/00—Evaporators; Condensers
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves

Definitions

  • the present application relates to the technical field of air conditioners, and in particular to a one-way split device and a variable split heat exchanger.
  • Air conditioner is a commonly used air temperature regulating device.
  • Existing air conditioners are mainly of split structure, that is, they include an indoor unit and an outdoor unit, and the indoor unit and the outdoor unit are connected through a refrigerant circulation loop.
  • the indoor unit includes an indoor heat exchanger
  • the outdoor unit includes an outdoor heat exchanger. Since the indoor heat exchanger and the outdoor heat exchanger are key components of the air conditioner that are directly used for indoor and outdoor heat exchange, the heat exchange efficiency of the indoor heat exchanger and the outdoor heat exchanger will directly affect the cooling or heating efficiency of the air conditioner. Effect.
  • valve body components such as diverters and one-way valves to make the refrigerant flow paths of the heat exchanger different during cooling and heating.
  • Setting up valve body components such as diverters and one-way valves in the heat exchanger often increases the number of solder joints of the valve body components on the heat exchanger, and in order to ensure a safe welding distance, there is a gap between the solder joints of two adjacent valve body components.
  • the distance is usually greater than 30cm, which increases the material cost and space cost of the heat exchanger.
  • Setting valve body components such as diverters and one-way valves in the heat exchanger often increases the solder joints of the valve body components on the heat exchanger, and In order to ensure a safe welding distance, the distance between the welding points of two adjacent valve body components is usually greater than 30cm, which increases the material cost and space cost of the heat exchanger.
  • Embodiments of the present disclosure provide a one-way diverting device, which blocks or conducts the refrigerant port to make the refrigerant flow in one direction or divert the refrigerant.
  • the use of the above-mentioned one-way diverting device can reduce the valve body components in the heat exchanger, thereby reducing the number of solder joints in the heat exchanger, thereby reducing the material cost and space cost of the heat exchanger.
  • a one-way diverter device includes a housing, a guide assembly, a blocking element, and a first positioning element.
  • the casing includes a first refrigerant port disposed on the first end surface, a second refrigerant port and a third refrigerant port disposed on the second end surface, wherein the casing has a hollow inner cavity.
  • the first end of the guide component is fixed on the second end surface, and the guide component is disposed between the second refrigerant port and the third refrigerant port.
  • the blocking element includes a sliding end and a blocking end, wherein the sliding end is slidingly connected to the guide component, and the side surface of the blocking end fits the wall of the inner cavity and slides along the wall of the inner cavity driven by the sliding end.
  • the first positioning element is provided at the second end of the guide assembly and is used to stop the blocking element.
  • the third refrigerant port is blocked so that the refrigerant flows in from the first refrigerant port and flows out from the second refrigerant port.
  • the third refrigerant port is opened to allow refrigerant to flow in from the second refrigerant port and the third refrigerant port and to flow out from the first refrigerant port.
  • the blocking element When the blocking element is in the first position, it can block the refrigerant from flowing out of the third refrigerant port to achieve one-way flow of refrigerant in the corresponding flow path. It can be seen that when the blocking element in the one-way diverting device slides to the first position, the effect of the one-way valve can be achieved.
  • the blocking element When the blocking element is in the second position, the refrigerant flows in from the second refrigerant port and the third refrigerant port, and the above-mentioned one-way diverting device divides and merges the inflowing refrigerant. It can be seen that when the blocking element in the one-way diverting device slides to the second position, the effect of the diverting device can be achieved.
  • the above-mentioned one-way diverting device slides to the first position or the second position through the blocking element to realize the one-way flow of the refrigerant or to divert the refrigerant respectively, thus reducing the number of valve bodies that need to be welded in the heat exchanger and reducing the material consumption. cost and space cost.
  • the thickness of the barrier element is a first thickness D1.
  • the height of the guide assembly is the first height H1.
  • the height of the housing is the second height H2.
  • the first thickness D1 is smaller than the first height H1, and the first height H1 is smaller than the second height H2.
  • the first thickness D1 is less than or equal to 1/2 times the first height H1.
  • the first height H1 is less than or equal to 1/3 times the second height 2.
  • the sliding end of the blocking element is provided with a sliding groove, and the sliding groove is slidably connected with the guide assembly.
  • a one-way diverting device further includes a stop lever.
  • the stop rod is fixedly connected to the second end of the guide assembly.
  • a one-way diverting device further includes a second positioning element.
  • the second positioning element is arranged on the wall surface of the inner cavity of the housing and is opposite to the first positioning element.
  • the area of the first refrigerant port is larger than the areas of the second refrigerant port and the third refrigerant port.
  • the housing cavity is cylindrical and the blocking element is semicircular.
  • the third refrigerant port is circular, and the area of the third refrigerant port is the first area S1.
  • the area of the blocking end of the blocking element is the second area S2.
  • the first area S1 is smaller than the second area S2.
  • variable split flow heat exchanger includes the one-way split flow device described above.
  • a variable split flow heat exchanger further includes a first heat exchange passage, a second heat exchange passage, a third heat exchange passage, a first manifold pipe, a second manifold pipe and a first one-way valve.
  • the first end of the first heat exchange passage is connected to the second refrigerant port of the one-way splitting device, and the second end is connected to the first splitting element.
  • the first end of the second heat exchange passage is connected to the first flow dividing element, and the second end is connected to the second flow dividing element.
  • the first end of the third heat exchange passage is connected to the second flow splitting element, and the second end is connected to the third flow splitting element.
  • the first end of the first manifold pipe is connected to the third refrigerant port of the one-way diverter device, and the second end is connected to the second diverter element.
  • the first end of the second manifold pipe is connected to the first diverter element, and the second end is connected to the third diverter element.
  • the first one-way valve is disposed on the second manifold pipe, and the conduction direction is limited from the third diverter element to the first diverter element.
  • Figure 1 is a schematic structural diagram of a heat exchanger in related technology provided by an embodiment of the present disclosure
  • Figure 2 is a schematic structural diagram of a one-way diverting device provided by an embodiment of the present disclosure
  • Figure 3 is a schematic structural diagram of a blocking element provided by an embodiment of the present disclosure.
  • Figure 4 is a refrigerant flow diagram with a blocking element in a first position provided by an embodiment of the present disclosure
  • Figure 5 is a refrigerant flow diagram with a blocking element in a second position provided by an embodiment of the present disclosure
  • Figure 6 is a dimensional view of a partial structure of a one-way diverting device provided by an embodiment of the present disclosure
  • Figure 7 is a schematic structural diagram of a guide assembly provided by an embodiment of the present disclosure.
  • Figure 8 is a refrigerant flow diagram of a variable split flow heat exchanger provided by an embodiment of the present disclosure
  • Figure 9 is a refrigerant flow diagram of another variable split flow heat exchanger provided by an embodiment of the present disclosure.
  • 10 Shell; 101: First end face; 1011: First refrigerant port; 102: Second end face; 1021: Second refrigerant port; 1022: Third refrigerant port; 20: Guide assembly; 201: First guide rod; 202: second guide rod; 203: stop rod; 301: first positioning element; 302: second positioning element; 40: blocking element; 401: blocking end; 402: sliding end; 403: first sliding groove; 404: Second sliding groove; 501: First heat exchange passage; 502: Second heat exchange passage; 503: Third heat exchange passage; 601: First manifold pipe; 602: Second manifold pipe; 70: Single Directional flow diverting device; 801: first diverting element; 802: second diverting element; 803: third diverting element; 804: fourth diverting element; 901: first one-way valve; 902: second one-way valve.
  • the orientation or positional relationship indicated by the terms “upper”, “lower”, “inner”, “middle”, “outer”, “front”, “back”, etc. is based on the orientation or position shown in the drawings. Positional relationship. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated device, element or component to have a specific orientation, or to be constructed and operated in a specific orientation. Moreover, some of the above terms may also be used to express other meanings in addition to indicating orientation or positional relationships. For example, the term “upper” may also be used to express a certain dependence relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.
  • connection can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, or two devices, components or Internal connections between components.
  • connection can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, or two devices, components or Internal connections between components.
  • A/B means: A or B.
  • a and/or B means: A or B, or A and B.
  • the air conditioner includes an indoor unit and an outdoor unit.
  • the indoor unit is equipped with an indoor heat exchanger and an indoor fan, which can be used to realize functions such as heat exchange with the refrigerant and the indoor environment;
  • the outdoor unit is equipped with an outdoor heat exchanger, an outdoor fan, Compressors, etc., which can be used to achieve functions such as heat exchange with the refrigerant and the outdoor environment.
  • the heat exchanger is also provided with a fourth flow diverting element 804 and a second one-way valve 902.
  • the first end of the first heat exchange passage 501 is connected to the fourth diverter element 804 , and the second end is connected to the first diverter element 801 .
  • the first end of the first manifold pipe 601 is connected to the fourth diverter element 804 , and the second end is connected to the second diverter element 802 .
  • the second one-way valve 902 is provided in the first manifold pipe 601, and the conduction direction is limited from the second diverter element 802 to the fourth diverter element 804.
  • the heat exchanger shown in Figure 1 When the heat exchanger shown in Figure 1 is used as an outdoor heat exchanger, when the air conditioner is running in the cooling mode, the first one-way valve 901 and the second one-way valve 902 are in a closed state, and the first heat exchange passage 501, The second heat exchange passage 502 and the third heat exchange passage 503 are in series, and the refrigerant flows through the first heat exchange passage 501, the second heat exchange passage 502 and the third heat exchange passage 503 in sequence; when the air conditioner is operating in the heating mode state, the first one-way valve 901 and the second one-way valve 902 are in the conducting state, and the first heat exchange passage 501, the second heat exchange passage 502 and the third heat exchange passage 503 are in a parallel state, allowing the refrigerant to flow through respectively.
  • the pressure loss problem caused by the long flow path of the refrigerant can simultaneously ensure the needs of the heat exchanger under different working conditions.
  • the second one-way valve 902 to the first manifold pipe 601 to achieve different refrigerant flow paths during cooling and heating will increase the number of welding spots in the first manifold pipe 601.
  • the distance between welding points between the fourth diverter element 804, the second one-way valve 902, and the second diverter element 802 usually needs to be greater than 30 cm, which increases the material cost and space cost of the heat exchanger.
  • the embodiment of the present disclosure provides a one-way diverting device 70 .
  • a one-way diverting device 70 includes a housing 10 , a guide assembly 20 , a blocking element 40 and a first positioning element 301 .
  • the housing 10 includes a first refrigerant port 1011 provided on the first end surface 101, a second refrigerant port 1021 and a third refrigerant port 1022 provided on the second end surface 102, wherein the housing 10 has a hollow inner cavity.
  • the first end of the guide component 20 is fixed to the second end surface 102 , and the guide component 20 is disposed between the second refrigerant port 1021 and the third refrigerant port 1022 .
  • the blocking element 40 includes a sliding end 402 and a blocking end 401.
  • the sliding end 402 is slidingly connected to the guide assembly 20.
  • the side of the blocking end 401 is in contact with the wall of the inner cavity and is driven along the wall of the inner cavity by the sliding end 402. slide.
  • the first positioning element 301 is provided at the second end of the guide assembly 20 for blocking the blocking element 40 .
  • the blocking element 40 When the blocking element 40 is in the first position, the third refrigerant port 1022 is blocked so that the refrigerant flows in from the first refrigerant port 1011 and flows out from the second refrigerant port 1021 .
  • the third refrigerant port 1022 When the blocking element 40 is in the second position, the third refrigerant port 1022 is opened to allow refrigerant to flow in from the second refrigerant port 1021 and the third refrigerant port 1022 and to flow out from the first refrigerant port 1011 .
  • the blocking element 40 can be pushed upward or downward along the guide assembly 20 by the pressure generated when the refrigerant flows.
  • the refrigerant when the refrigerant flows in from the first refrigerant port 1011, the refrigerant pushes the blocking member 40 to slide downward.
  • the pressure exerted by the refrigerant causes the blocking element 40 to slide to the first position along the guide assembly 20 to block the third refrigerant port 1022, so that the refrigerant cannot flow out through the third refrigerant port 1022 but can only flow out through the second refrigerant port 1021, as shown in Figure 4 shown.
  • the refrigerant flows in from the second refrigerant port 1021 and the third refrigerant port 1022, the refrigerant pushes the blocking member 40 to slide upward.
  • the pressure exerted by the refrigerant causes the blocking element 40 to slide to the second position along the guide assembly 20 to connect the third refrigerant port 1022 so that the refrigerant can flow in from the second refrigerant port 1021 and the third refrigerant port 1022 at the same time and from the first refrigerant port 1011 outflow, as shown in Figure 5.
  • the first positioning element 301 can stop the blocking element 40 to prevent the blocking element 40 from continuing to move away from the guide assembly 20 and blocking the first refrigerant port 1011 so that the refrigerant cannot flow from the first refrigerant. Mouth 1011 flows out.
  • the blocking element 40 when the blocking element 40 is in the first position, the third refrigerant port 1022 is blocked, so that the refrigerant cannot flow out through the third refrigerant port 1022 .
  • the blocking element 40 When the blocking element 40 is in the second position, the third refrigerant port 1022 is connected, so that refrigerant can flow in through the third refrigerant port 1022 .
  • the blocking element 40 allows the refrigerant in the flow path corresponding to the third refrigerant port 1022 to flow in only one direction from the third refrigerant port 1022 to the first refrigerant port 1011 .
  • the refrigerant can flow in from the second refrigerant port 1021 and the third refrigerant port 1022 and flow out from the first refrigerant port 1011 at the same time.
  • the one-way dividing device 70 divides and merges the refrigerant flowing in from the second refrigerant port 1021 and the third refrigerant port 1022, and then causes the refrigerant to flow out from the first refrigerant port 1011 to achieve the effect of dividing and merging the refrigerant. It can be seen that the above-mentioned one-way diverting device 70 can slide to the first position or the second position through the blocking element 40 to achieve the effects of making the refrigerant flow in one direction and diverting the refrigerant respectively.
  • the thickness of the blocking element 40 is the first thickness D1.
  • the height of the guide assembly 20 is the first height H1.
  • the height of the housing 10 is the second height H2.
  • the first thickness D1 is smaller than the first height H1, and the first height H1 is smaller than the second height H2. As shown in Figure 6.
  • the first thickness D1 is less than or equal to 1/2 times the first height H1.
  • the first height H1 is less than or equal to 1/3 times the second height H2.
  • the first thickness D1 may be 1/2, 1/3, 1/4 or 1/5 of the first height H1.
  • the first height H1 may be 1/3, 1/4, 1/5 or 1/6 of the second height H2.
  • the guide assembly 20 includes a first guide rod 201 and a second guide rod 202.
  • the first guide rod 201 and the second guide rod 202 are arranged in parallel. As shown in Figure 7.
  • the first end of the first guide rod 201 is connected to the second end surface 102 of the housing 10, and the first guide rod 201 is vertically disposed between the second refrigerant port 1021 and the third refrigerant port 1022 of the second end surface 102, And the second end is provided with a first positioning element 301.
  • the first end of the second guide rod 202 is connected to the second end surface 102 of the housing 10, and the second guide rod 202 is vertically disposed between the second refrigerant port 1021 and the third refrigerant port 1022 of the second end surface 102, And the second end is provided with a first positioning element 301.
  • the first guide rod 201 has the same size as the second guide rod 202 .
  • the length of the first guide rod 201 is the same as that of the second guide rod 202
  • the width of the first guide rod 201 is the same as that of the second guide rod 202 , etc., so as to improve the stability of the connection between the blocking element 40 and the guide assembly 20 and improve the stability of the connection between the blocking element 40 and the guide assembly 20 .
  • the sliding stability of the guide assembly 20 is the same size as the second guide rod 202 .
  • the length of the first guide rod 201 is the same as that of the second guide rod 202
  • the width of the first guide rod 201 is the same as that of the second guide rod 202 , etc.
  • the sliding end 402 of the blocking element 40 is provided with a first sliding groove 403 and a second sliding groove 404.
  • the first sliding groove 403 is slidably connected to the first guide rod 201
  • the second sliding groove 404 is slidably connected to the second guide rod 202.
  • Figure 3 shows that the first sliding groove 403 is slidably connected to the first guide rod 201
  • the second sliding groove 404 is slidably connected to the second guide rod 202.
  • the blocking element 40 is connected to the guide assembly 20 through the first sliding groove 403 and the second sliding groove 404, which can make the blocking element 40 more stable when sliding along the guide assembly 20.
  • the first sliding groove 403 and the second sliding groove 404 can prevent the refrigerant from flowing out through the gap when a gap is generated between the blocking element 40 and the housing 10.
  • the one-way diverting device 70 further includes a stop lever 203 .
  • the stop rod 203 is fixedly connected to the second end of the guide assembly 20 . As shown in Figure 7.
  • the stop rod 203 can assist the first positioning element 301 to stop the blocking element 40 to improve the stability when the blocking element 40 is located in the second position.
  • the one-way diverting device 70 further includes a second positioning element 302 .
  • the second positioning element 302 is arranged on the wall surface of the inner cavity of the housing 10 and is opposite to the first positioning element 301 .
  • the second positioning element 302 can block the blocking end 401 of the blocking element 40 to prevent the blocking end 401 of the blocking element 40 from being deflected due to the extrusion of the refrigerant.
  • the area of the first refrigerant port 1011 is larger than the areas of the second refrigerant port 1021 and the third refrigerant port 1022 .
  • the area of the second refrigerant port 1021 and the area of the third refrigerant port 1022 are both smaller than 2/3 times the area of the first refrigerant port 1011 .
  • the area of the second refrigerant port 1021 is 1/3, 1/4, 1/5 or 1/6 of the area of the first refrigerant port 1011 .
  • the area of the third refrigerant port 1022 is 1/3, 1/4, 1/5 or 1/6 of the area of the first refrigerant port 1011 .
  • the area of the second refrigerant port 1021 is equal to the area of the third refrigerant port 1022 .
  • the refrigerant flow rate through the second refrigerant port 1021 is equal to the refrigerant flow rate through the third refrigerant port 1022.
  • the inner cavity of the housing 10 is cylindrical, and the blocking element 40 is semicircular.
  • the area of the blocking element 40 is greater than or equal to 1/2 of the cross-sectional area of the inner cavity of the housing 10 to ensure that the side of the blocking end 401 of the blocking element 40 can avoid fitting with the inner cavity of the housing 10.
  • the area of the blocking element 40 is 1/2, 2/3 or 3/4 of the cross-sectional area of the inner cavity of the housing 10 .
  • the third refrigerant port 1022 has a circular cross-section, and the diameter of the third refrigerant port 1022 is the first diameter S1.
  • the radius of the blocking end 401 of the blocking element 40 is the first radius S2.
  • the first diameter S1 is smaller than the first radius S2.
  • the third refrigerant port 1022 has a semicircular cross-section, and the radius of the third refrigerant port 1022 is smaller than the radius of the blocking end 401 of the blocking element 40 .
  • the blocking element 40 when the blocking element 40 is located in the first position, the blocking element 40 can completely cover the third refrigerant port 1022 to prevent the refrigerant from flowing out of the third refrigerant port 1022 through the gap.
  • the above description of the third refrigerant port 1022 is to illustrate that when the blocking element 40 is located in the first position, the blocking element 40 can completely cover the third refrigerant port 1022 to block the third refrigerant port 1022, and does not affect the third refrigerant port 1022.
  • Shapes constitute limitations.
  • the second end surface 102 of the housing 10 is located under the first end surface 101 .
  • the second end surface 102 of the housing 10 is located at the lower part of the first end surface 101 so that the blocking element 40 is in the first position when not being squeezed by the refrigerant, that is, the initial position of the blocking element 40 is the first position. In this way, when the refrigerant flows in from the first refrigerant port 1011, it will not flow out from the third refrigerant port 1022 through the gap because the blocking element 40 does not slide to the first position in time.
  • the refrigerant when the refrigerant flows in from the third refrigerant port 1022, even if the blocking element 40 is subject to gravity, the refrigerant can push the blocking element 40 to the second position by virtue of the pressure generated during the flow.
  • variable split flow heat exchanger includes the above-mentioned one-way split flow device 70.
  • the one-way splitting device 70 has the function of making the refrigerant flow in one direction. Therefore, the pipeline connected to the third refrigerant port 1022 of the one-way splitting device 70 in the variable splitting heat exchanger does not need to be equipped with a splitting element at the same time. and a one-way valve to achieve the effect of one-way diversion of refrigerant. In this way, the above-mentioned one-way diverter device 70 can simultaneously realize the functions of a diverter element and a one-way valve, reducing the number of valve bodies on the first manifold pipeline 601, thereby reducing the number of welding points of the valve bodies on the first manifold pipe 601. , to reduce material costs and space costs.
  • variable split flow heat exchanger also includes a first heat exchange passage 501, a second heat exchange passage 502, a third heat exchange passage 503, a first manifold pipe 601, a second manifold pipe 602 and a first single heat exchanger.
  • first heat exchange passage 501 a first heat exchange passage 501
  • second heat exchange passage 502 a third heat exchange passage 503
  • first manifold pipe 601 a second manifold pipe 602
  • first single heat exchanger To valve 901.
  • the first end of the first heat exchange passage 501 is connected to the second refrigerant port 1021 of the one-way splitting device 70 , and the second end is connected to the first splitting element 801 .
  • the first end of the second heat exchange passage 502 is connected to the first diverter element 801 , and the second end is connected to the second diverter element 802 .
  • the first end of the third heat exchange passage 503 is connected to the second flow splitting element 802 , and the second end is connected to the third flow splitting element 803 .
  • the first end of the first manifold pipe 601 is connected to the third refrigerant port 1022 of the one-way diverter device 70 , and the second end is connected to the second diverter element 802 .
  • the first end of the second manifold pipe 602 is connected to the first diverter element 801 , and the second end is connected to the third diverter element 803 .
  • the first one-way valve 901 is provided in the second manifold pipe 602, and the conduction direction is limited from the third diverter element 803 to the first diverter element 801.
  • the refrigerant in the one-way split device 70 passes through the first heat exchange passage 501 flows to the first diverting element 801.
  • the refrigerant in the first diverter element 801 flows to the second diverter element 802 through the second heat exchange passage 502, and then flows to the third diverter element 803 through the third heat exchange passage 503.
  • the flow direction of the refrigerant is from the one-way split device 70 to the third split element 803 .
  • the first heat exchange passage 501, the second heat exchange passage 502 and the third heat exchange passage 503 are in a series relationship.
  • the flow direction of the refrigerant is from the third split flow element 803 to the one-way split flow device 70 .
  • the first heat exchange passage 501, the second heat exchange passage 502, and the third heat exchange passage 503 are in a parallel relationship.
  • variable split heat exchanger can achieve different path lengths for the refrigerant to flow when it is in different working conditions, so as to ensure the performance requirements of the air conditioner in different working modes.
  • the first heat exchange passage 501 is located above the second heat exchange passage 502
  • the second heat exchange passage 502 is located above the third heat exchange passage 503 .
  • first heat exchange passage 501 is located above the second heat exchange passage 502, which facilitates the smooth flow of the refrigerant to the second heat exchange passage 502 after passing through the first heat exchange passage 501.
  • second heat exchange passage 502 is located above the third heat exchange passage 503, which facilitates the smooth flow of the refrigerant to the third heat exchange passage 503 after passing through the second heat exchange passage 502.
  • the first heat exchange passage 501, the second heat exchange passage 502, and the third heat exchange passage 503 include the same number of heat exchange tubes.
  • the first heat exchange passage 501 includes at least one heat exchange tube, and the number of heat exchange tubes included in the second heat exchange passage 502 and the third heat exchange passage 503 is equal to the number of heat exchange tubes included in the first heat exchange passage 501 The same, so that the refrigerant in the first heat exchange passage 501, the second heat exchange passage 502, and the third heat exchange passage 503 is more uniform.
  • the heat exchange tubes included in the first heat exchange passage 501 , the second heat exchange passage 502 and the third heat exchange passage 503 adopt the same structural design.
  • the heat exchange tubes included in the first heat exchange passage 501, the second heat exchange passage 502 and the third heat exchange passage 503 have the same diameter, the same tube wall thickness, the same curvature and length at the bend, etc., so that the refrigerant A more uniform flow in the variable split flow heat exchanger avoids unstable refrigerant pressure and flow rate caused by changes in the structure of the heat exchange tube.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
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Abstract

本申请涉及空调器技术领域，公开了一种单向分流装置，包括壳体、导向组件、阻挡元件和第一定位元件。当阻挡元件位于第一位置时可以阻挡冷媒从第三冷媒口流出。当阻挡元件位于第二位置时则导通第三冷媒口使冷媒可从第三冷媒口流入单向分流装置。阻挡元件可滑动至不同位置，以同时达到对冷媒进行分流和防止冷媒回流的效果，减少换热器的焊点以降低材料成本和空间成本。本申请同时还公开了一种可变分流换热器。

Description

单向分流装置和可变分流换热器
本申请基于申请号为202210872783.7、申请日为2022年7月21日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及空调器技术领域，特别涉及一种单向分流装置和可变分流换热器。
背景技术
空调器是一种常用的空气温度调节设备。现有空调器主要为分体结构，即包括室内机与室外机，室内机与室外机通过冷媒循环回路连接。其中，室内机包括室内换热器，室外机包括室外换热器。由于室内换热器和室外换热器是空调器直接用于室内、室外热交换的关键组成部分，所以室内换热器和室外换热器的换热效率将直接影响空调器制冷或制热的效果。
为了提高空调器的换热效率，现有的换热器会通过设置分流装置和单向阀等阀体元件，使换热器在制冷和制热时的冷媒流动路径不同。
在实现本公开实施例的过程中，发现相关技术中至少存在如下问题：
在换热器中设置分流装置和单向阀等阀体元件往往增加了阀体元件在换热器上的焊点，并且为了保证焊接安全距离，相邻两个阀体元件的焊点之间的距离通常会大于30cm，增加了换热器的材料成本和空间成本在换热器中设置分流装置和单向阀等阀体元件往往增加了阀体元件在换热器上的焊点，并且为了保证焊接安全距离，相邻两个阀体元件的焊点之间的距离通常会大于30cm，增加了换热器的材料成本和空间成本。
发明内容
为了对披露的实施例的一些方面有基本的理解，下面给出了简单的概括。所述概括不是泛泛评述，也不是要确定关键/重要组成元素或描绘这些实施例的保护范围，而是作为后面的详细说明的序言。
本公开实施例提供一种单向分流装置，通过对冷媒口的封堵或导通，以起到使冷媒单向流动或对冷媒进行分流的作用。使用上述单向分流装置可减少换热器中的阀体元件，以减少了换热器中的焊点，进而降低了换热器的材料成本和空间成本。
在一些实施例中，一种单向分流装置包括壳体、导向组件、阻挡元件和第一定位元件。
壳体包括设置于第一端面的第一冷媒口，设置于第二端面的第二冷媒口和第三冷媒口，其中壳体具有中空的内腔。导向组件的第一端固定于第二端面，且导向组件设置于第二冷媒口和第三冷媒口之间。阻挡元件包括滑动端和封堵端，其中滑动端与导向组件滑动连接，封堵端侧面与内腔的壁面贴合，且在滑动端的带动下沿内腔的壁面滑动。第一定位元件设置于导向组件的第二端，用于止挡阻挡元件。其中当阻挡元件位于第一位置时，封堵第三冷媒口使冷媒从第一冷媒口流入，从第二冷媒口流出。当阻挡元件位于第二位置时，导通第三冷媒口使冷媒从第二冷媒口和第三冷媒口流入，从第一冷媒口流出。
本公开实施例提供的一些技术方案可以实现以下技术效果：
当阻挡元件位于第一位置时可以阻挡冷媒从第三冷媒口流出，以实现对应流路内的冷媒单向流动。可见，当上述单向分流装置内的阻挡元件滑动至第一位置时，可实现单向阀的效果。当阻挡元件位于第二位置时冷媒从第二冷媒口和第三冷媒口流入，上述单向分流装置对流入的冷媒进行分流、汇流。可见，当上述单向分流装置内的阻挡元件滑动至第二位置时，可实现分流装置的效果。这样，上述单向分流装置通过阻挡元件滑动至第一位置或第二位置，以分别实现冷媒单向流动或对冷媒进行分流的作用，进而减少换热器内需要焊接的阀体数量以降低材料成本和空间成本。
在一些实施例中，阻挡元件的厚度为第一厚度D1。导向组件的高度为第一高度H1。壳体的高度为第二高度H2。其中第一厚度D1小于第一高度H1，且第一高度H1小于第二高度H2。
在一些实施例中，第一厚度D1小于或等于1/2倍的第一高度H1。第一高度H1小于或等于1/3倍的第二高度2。
在一些实施例中，阻挡元件滑动端设置有滑动槽，滑动槽与导向组件滑动连接。
在一些实施例中，一种单向分流装置还包括止挡杆。止挡杆与导向组件的第二端固定连接。
在一些实施例中，一种单向分流装置还包括第二定位元件。第二定位元件设置于壳体内腔的壁面，与第一定位元件相对设置。
在一些实施例中，第一冷媒口的面积大于第二冷媒口和第三冷媒口的面积。
在一些实施例中，壳体内腔为圆柱形，且阻挡元件为半圆形。
在一些实施例中，第三冷媒口为圆形，第三冷媒口的面积为第一面积S1。阻挡元件封堵端的面积为第二面积S2。其中第一面积S1小于第二面积S2。
在一些实施例中，一种可变分流换热器包括上述的单向分流装置。
在一些实施例中，一种可变分流换热器还包括第一换热通路、第二换热通路、第三换热通路、第一汇流管路、第二汇流管路和第一单向阀。
第一换热通路的第一端与单向分流装置的第二冷媒口连接，第二端与第一分流元件连接。第二换热通路的第一端与第一分流元件连接，第二端与第二分流元件连接。第三换热通路的第一端与第二分流元件连接，第二端与第三分流元件连接。第一汇流管路的第一端与单向分流装置的第三冷媒口连接，第二端与第二分流元件连接。第二汇流管路的第一端与第一分流元件连接，第二端与第三分流元件连接。第一单向阀设置于第二汇流管路，且导通方向限定为从第三分流元件至第一分流元件。
以上的总体描述和下文中的描述仅是示例性和解释性的，不用于限制本申请。
附图说明
一个或多个实施例通过与之对应的附图进行示例性说明，这些示例性说明和附图并不构成对实施例的限定，附图中具有相同参考数字标号的元件示为类似的元件，附图不构成比例限制，并且其中：
图1是本公开实施例提供的一个相关技术中换热器的结构示意图；
图2是本公开实施例提供的一个单向分流装置的结构示意图；
图3是本公开实施例提供的一个阻挡元件的结构示意图；
图4是本公开实施例提供的一个阻挡元件位于第一位置的冷媒流向图；
图5是本公开实施例提供的一个阻挡元件位于第二位置的冷媒流向图；
图6是本公开实施例提供的一个单向分流装置部分结构的尺寸图；
图7是本公开实施例提供的一个导向组件的结构示意图；
图8是本公开实施例提供的一个可变分流换热器的冷媒流向图；
图9是本公开实施例提供的另一个可变分流换热器的冷媒流向图。
附图标记：
10：壳体；101：第一端面；1011：第一冷媒口；102：第二端面；1021：第二冷媒口；1022：第三冷媒口；20：导向组件；201：第一导向杆；202：第二导向杆；203：止挡杆；301：第一定位元件；302：第二定位元件；40：阻挡元件；401：封堵端；402：滑动端；403：第一滑动槽；404：第二滑动槽；501：第一换热通路；502：第二换热通路；503：第三换热通路；601：第一汇流管路；602：第二汇流管路；70：单向分流装置；801：第一分流元件；802：第二分流元件；803：第三分流元件；804：第四分流元件；901：第一单向阀；902：第二单向阀。
具体实施方式
为了能够更加详尽地了解本公开实施例的特点与技术内容，下面结合附图对本公开实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本公开实施例。在以下的技术描述中，为方便解释起见，通过多个细节以提供对所披露实施例的充分理解。然而，在没有这些细节的情况下，一个或多个实施例仍然可以实施。在其它情况下，为简化附图，熟知的结构和装置可以简化展示。
本公开实施例的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本公开实施例的实施例。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含。
本公开实施例中，术语“上”、“下”、“内”、“中”、“外”、“前”、“后”等指示的方位或位置关系为基于附图所示的方位或位置关系。这些术语主要是为了更好地描述本公开实施例及其实施例，并非用于限定所指示的装置、元件或组成部分必须具有特定方位，或以特定方位进行构造和操作。并且，上述部分术语除了可以用于表示方位或位置关系以外，还可能用于表示其他含义，例如术语“上”在某些情况下也可能用于表示某种依附关系或连接关系。对于本领域普通技术人员而言，可以根据具体情况理解这些术语在本公开实施例中的具体含义。
另外，术语“设置”、“连接”、“固定”应做广义理解。例如，“连接”可以是固定连接，可拆卸连接，或整体式构造；可以是机械连接，或电连接；可以是直接相连，或者是通过中间媒介间接相连，又或者是两个装置、元件或组成部分之间内部的连通。对于本领域普通技术人员而言，可以根据具体情况理解上述术语在本公开实施例中的具体含义。
除非另有说明，术语“多个”表示两个或两个以上。
本公开实施例中，字符“/”表示前后对象是一种“或”的关系。例如，A/B表示：A或B。
术语“和/或”是一种描述对象的关联关系，表示可以存在三种关系。例如，A和/或B，表示：A或B，或，A和B这三种关系。
需要说明的是，在不冲突的情况下，本公开实施例中的实施例及实施例中的特征可以相互组合。
空调器包括室内机和室外机，其中室内机设置有室内换热器和室内风机等，其可用于实现配合冷媒与室内环境进行热交换等功能；室外机设置有室外换热器、室外风机、压缩机等，其可用于实现配合冷媒与室外环境进行热交换等功能。
如图1所示的换热器，还设置有第四分流元件804和第二单向阀902。其中第一换热通路501的第一端与第四分流元件804连接，第二端与第一分流元件801连接。第一汇流管路601的第一端与第四分流元件804连接，第二端与第二分流元件802连接。第二单向阀902设置于第一汇流管路601，且导通方向限定为从第二分流元件802至第四分流元件804。
如图1所示的换热器作为室外换热器时，在空调器运行制冷模式的状态下，第一单向阀901和第二单向阀902处于关闭状态，第一换热通路501、第二换热通路502和第三换热通路503处于串联状态，冷媒依次流经第一换热通路501、第二换热通路502和第三换热通路503；在空调器运行制热模式的状态下，第一单向阀901和第二单向阀902处于导通状态，第一换热通路501、第二换热通路502和第三换热通路503处于并联状态，使冷媒分别流经第一换热通路501、第二换热通路502和第三换热通路503。可见，该换热器不仅能够在制冷工况下延长高温冷媒在换热器内的流路路径的长度，使得冷媒能够充分换热以增加过冷度；同时也可以在制热工况下避免冷媒因流路过长所导致的压损问题，从而能够同时保证换热器在不同工况下的需求。
但是，将第二单向阀902焊接于第一汇流管路601以实现制冷和制热时冷媒流动路径不同的同时会增加第一汇流管路601的焊点。为了保证焊接安全距离，第四分流元件804、第二单向阀902、第二分流元件802两两之间的焊点距离通常需大于30cm，增加了换热器的材料成本和空间成本。
本公开实施例提供一种单向分流装置70。
如图2至图7所示，在一些实施例中，一种单向分流装置70包括壳体10、导向组件20、阻挡元件40和第一定位元件301。
壳体10包括设置于第一端面101的第一冷媒口1011，设置于第二端面102的第二冷媒口1021和第三冷媒口1022，其中壳体10具有中空的内腔。导向组件20的第一端固定于第二端面102，且导向组件20设置于第二冷媒口1021和第三冷媒口1022之间。阻挡元件40包括滑动端402和封堵端401，其中滑动端402与导向组件20滑动连接，封堵端401侧面与内腔的壁面贴合，且在滑动端402的带动下沿内腔的壁面滑动。第一定位元件301设置于导向组件20的第二端，用于止挡阻挡元件40。其中当阻挡元件40位于第一位置时，封堵第三冷媒口1022使冷媒从第一冷媒口1011流入，从第二冷媒口1021流出。当阻挡元件40位于第二位置时，导通第三冷媒口1022使冷媒从第二冷媒口1021和第三冷媒口1022流入，从第一冷媒口1011流出。
可以理解的是，通过冷媒流动时自身产生的压力即可推动阻挡元件40沿导向组件20 向上或向下滑动。
具体地，当冷媒从第一冷媒口1011流入时，冷媒推动阻挡元件40向下滑动。冷媒施加的压力使阻挡元件40沿导向组件20滑动至第一位置以封堵第三冷媒口1022，进而使冷媒无法通过第三冷媒口1022流出而只能通过第二冷媒口1021流出，如图4所示。当冷媒从第二冷媒口1021和第三冷媒口1022流入时，冷媒推动阻挡元件40向上滑动。冷媒施加的压力使阻挡元件40沿导向组件20滑动至第二位置以导通第三冷媒口1022使冷媒可同时从第二冷媒口1021和第三冷媒口1022流入，并从第一冷媒口1011流出，如图5所示。当冷媒将阻挡元件40推至第二位置时，第一定位元件301可止挡阻挡元件40，防止阻挡元件40继续运动而脱离导向组件20堵住第一冷媒口1011导致冷媒无法从第一冷媒口1011流出。
如图4所示，当阻挡元件40位于第一位置时封堵第三冷媒口1022，使冷媒无法通过第三冷媒口1022流出。当阻挡元件40位于第二位置时导通第三冷媒口1022，使冷媒可通过第三冷媒口1022流入。阻挡元件40使第三冷媒口1022对应流路内的冷媒只能从第三冷媒口1022至第一冷媒口1011单向流动。
如图5所示，当阻挡元件40位于第二位置时，冷媒可同时从第二冷媒口1021和第三冷媒口1022流入，从第一冷媒口1011流出。上述单向分流装置70对从第二冷媒口1021和第三冷媒口1022流入的冷媒进行分流、汇流后，使冷媒从第一冷媒口1011流出，以实现对冷媒分流汇流的作用。可见，上述单向分流装置70可通过阻挡元件40滑动至第一位置或第二位置以分别实现使冷媒单向流动和对冷媒进行分流的效果。
可选地，阻挡元件40的厚度为第一厚度D1。导向组件20的高度为第一高度H1。壳体10的高度为第二高度H2。其中第一厚度D1小于第一高度H1，且第一高度H1小于第二高度H2。如图6所示。
可选地，第一厚度D1小于或等于1/2倍的第一高度H1。第一高度H1小于或等于1/3倍的第二高度H2。这样，当阻挡元件40位于第二位置时，如图5所示的位置，阻挡元件40与第三冷媒口1022之间留有足够的流动间隙可以使冷媒顺利从第三冷媒口1022流入。同时，阻挡元件40与第一冷媒口1011之间也留有足够的流动间隙可以使冷媒顺利从第一冷媒口1011流出。例如，第一厚度D1可以是第一高度H1的1/2、1/3、1/4或1/5。类似地，第一高度H1可以是第二高度H2的1/3、1/4、1/5或1/6。
可选地，导向组件20包含第一导向杆201和第二导向杆202，第一导向杆201与第二导向杆202平行设置。如图7所示。
具体地，第一导向杆201的第一端与壳体10的第二端面102连接，第一导向杆201 垂直设置于第二端面102的第二冷媒口1021和第三冷媒口1022之间，且第二端设置有第一定位元件301。类似地，第二导向杆202的第一端与壳体10的第二端面102连接，第二导向杆202垂直设置于第二端面102的第二冷媒口1021和第三冷媒口1022之间，且第二端设置有第一定位元件301。
可以理解的是，第一导向杆201的尺寸与第二导向杆202相同。例如，第一导向杆201的长度与第二导向杆202相同、第一导向杆201宽度与第二导向杆202相同等，以提高阻挡元件40与导向组件20连接的稳固性和阻挡元件40沿导向组件20滑动的稳定性。
可选地，阻挡元件40滑动端402设置有第一滑动槽403和第二滑动槽404。其中，第一滑动槽403与第一导向杆201滑动连接，第二滑动槽404与第二导向杆202滑动连接。如图3所示。
具体地，阻挡元件40通过第一滑动槽403和第二滑动槽404与导向组件20连接，可使阻挡元件40沿导向组件20滑动时更稳定。当冷媒推动阻挡元件40沿导向组件20滑动时，第一滑动槽403和第二滑动槽404可防止当阻挡元件40与壳体10之间产生缝隙，而导致冷媒通过缝隙流出的情况。
可选地，单向分流装置70还包括止挡杆203。止挡杆203与导向组件20的第二端固定连接。如图7所示。
具体地，止挡杆203可以辅助第一定位元件301止挡阻挡元件40以提高当阻挡元件40位于第二位置时的稳定性。
可选地，单向分流装置70还包括第二定位元件302。第二定位元件302设置于壳体10内腔的壁面，与第一定位元件301相对设置。
具体地，当阻挡元件40位于第二位置时，第二定位元件302可止挡阻挡元件40的封堵端401，以避免阻挡元件40的封堵端401因冷媒的挤压而产生偏移。
可选地，第一冷媒口1011的面积大于第二冷媒口1021和第三冷媒口1022的面积。
具体地，第二冷媒口1021的面积和第三冷媒口1022的面积均小于2/3倍的第一冷媒口1011的面积。例如，第二冷媒口1021的面积为第一冷媒口1011的面积的1/3、1/4、1/5或1/6。类似地，第三冷媒口1022的面积为第一冷媒口1011的面积的1/3、1/4、1/5或1/6。
可选地，第二冷媒口1021的面积等于第三冷媒口1022的面积。
可以理解的是，由于第二冷媒口1021的面积等于第三冷媒口1022的面积，所以通过第二冷媒口1021的冷媒流量等于通过第三冷媒口1022的冷媒流量。
可选地，壳体10内腔为圆柱形，且阻挡元件40为半圆形。
具体地，阻挡元件40的面积大于或等于壳体10内腔横截面积的1/2，以保证阻挡元 件40封堵端401的侧面可与壳体10内腔避免贴合。例如，阻挡元件40的面积为壳体10内腔横截面积的1/2、2/3或3/4。
可选地，第三冷媒口1022截面为圆形，第三冷媒口1022的直径为第一直径S1。阻挡元件40封堵端401的半径为第一半径S2。其中第一直径S1小于第一半径S2。
可选地，第三冷媒口1022截面为半圆形，且第三冷媒口1022的半径小于阻挡元件40的封堵端401的半径。
具体地，当阻挡元件40位于第一位置时，阻挡元件40可以完全覆盖第三冷媒口1022，以防止冷媒通过缝隙从第三冷媒口1022流出。
上述对第三冷媒口1022的表述是为了说明当阻挡元件40位于第一位置时，阻挡元件40可完全覆盖第三冷媒口1022以封堵第三冷媒口1022，并不对第三冷媒口1022的形状构成限制。
可选地，壳体10的第二端面102位于第一端面101的下部。
具体地，壳体10的第二端面102位于第一端面101的下部，使阻挡元件40在不受冷媒挤压时位于第一位置，即阻挡元件40的初始位置为第一位置。这样，当冷媒从第一冷媒口1011流入时，不会因为阻挡元件40未及时滑动至第一位置而通过间隙从第三冷媒口1022流出。
可以理解的是，当冷媒从第三冷媒口1022流入时，即使阻挡元件40受到重力，冷媒也可凭借流动时产生的压力将阻挡元件40推动至第二位置。
如图8和图9所示，在一些实施例中，可变分流换热器包括上述的单向分流装置70。
具体地，上述的单向分流装置70具有使冷媒单向流动的作用，所以上述可变分流换热器中与上述单向分流装置70第三冷媒口1022连接的管路无须再同时安装分流元件和单向阀，便可实现对冷媒单向分流的效果。这样，上述的单向分流装置70可同时实现分流元件和单向阀的作用，减少了第一汇流管路601上的阀体数量，进而减少了第一汇流管路601上阀体的焊接点，以降低材料成本和空间成本。
可选地，可变分流换热器还包括第一换热通路501、第二换热通路502、第三换热通路503、第一汇流管路601、第二汇流管路602和第一单向阀901。
第一换热通路501的第一端与单向分流装置70的第二冷媒口1021连接，第二端与第一分流元件801连接。第二换热通路502的第一端与第一分流元件801连接，第二端与第二分流元件802连接。第三换热通路503的第一端与第二分流元件802连接，第二端与第三分流元件803连接。第一汇流管路601的第一端与单向分流装置70的第三冷媒口1022连接，第二端与第二分流元件802连接。第二汇流管路602的第一端与第一分流元件801 连接，第二端与第三分流元件803连接。第一单向阀901设置于第二汇流管路602，且导通方向限定为从第三分流元件803至第一分流元件801。
可以理解的是，由于第一单向阀901的导通方向限定为从第三分流元件803至第一分流元件801，所以第一分流元件801内的冷媒无法通过第二汇流管路602流至第三分流元件803。
具体地，如图8所示，当可变分流换热器中冷媒的流向为从单向分流装置70到第三分流元件803时，单向分流装置70内的冷媒通过第一换热通路501流至第一分流元件801。第一分流元件801内的冷媒通过第二换热通路502流至第二分流元件802，再通过第三换热通路503流至第三分流元件803。
如图9所示，当可变分流换热器中的冷媒流向为从第三分流元件803到单向分流装置70时，第三分流元件803内的冷媒分流后，分别通过第二汇流管路602和第三换热通路503流至第一分流元件801和第二分流元件802。第一分流元件801内的冷媒分流后，分别通过第二换热通路502和第一换热通路501流至第二分流元件802和单向分流装置70。第二分流元件802内的冷媒通过第一汇流管路601流至单向分流装置70。
进一步地，在制冷工况下且上述的可变分流换热器作为室外换热器使用时，冷媒的流向为从单向分流装置70到第三分流元件803。第一换热通路501、第二换热通路502和第三换热通路503为串联关系。
可以理解的是，延长了高温冷媒与室外环境进行热交换的路径长度和时间，可使高温冷媒流经室外换热器后能够达到更低的温度，进而提升制冷性能。
进一步地，在制热工况下且上述的可变分流换热器作为室外换热器使用时，冷媒的流向为从第三分流元件803到单向分流装置70。第一换热通路501、第二换热通路502、第三换热通路503为并联关系。
可以理解的是，在制热工况下，缩短冷媒的流路可以避免冷媒因流路过长所导致的压损问题。
这样，采用了上述可变分流换热器的空调可以实现当处于不同工况时，冷媒所流过的路径长度不同，以保证空调在不同工作模式下的性能需求。
可选地，第一换热通路501位于第二换热通路502的上方，第二换热通路502位于第三换热通路503的上方。
可以理解的是，第一换热通路501位于第二换热通路502的上方，有利于冷媒通过第一换热通路501后顺利流至第二换热通路502。类似地，第二换热通路502位于第三换热通路503的上方，有利于冷媒通过第二换热通路502后顺利流至第三换热通路503。
可选地，第一换热通路501、第二换热通路502、第三换热通路503包含的换热管数量相同。
具体地，第一换热通路501包含至少一个换热管，第二换热通路502、第三换热通路503包含的换热管的数量与第一换热通路501包含的换热管的数量相同，以使第一换热通路501、第二换热通路502、第三换热通路503内的冷媒更均匀。
在实施例中，第一换热通路501、第二换热通路502和第三换热通路503包含的换热管采用相同的结构设计。例如，第一换热通路501、第二换热通路502和第三换热通路503包含的换热管的管径一致、管壁厚度一致、弯管处的曲率和长度一致等，以使冷媒在可变分流换热器内更均匀的流动，避免出现因换热管结构变化而导致冷媒压力、流速不稳定的情况。
以上描述和附图充分地示出了本公开的实施例，以使本领域的技术人员能够实践它们。其他实施例可以包括结构的以及其他的改变。实施例仅代表可能的变化。除非明确要求，否则单独的部件和功能是可选的，并且操作的顺序可以变化。一些实施例的部分和特征可以被包括在或替换其他实施例的部分和特征。本公开的实施例并不局限于上面已经描述并在附图中示出的结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (11)

  1. 一种单向分流装置，其特征在于，包括：
    壳体，包括设置于第一端面的第一冷媒口，设置于第二端面的第二冷媒口和第三冷媒口，其中所述壳体具有中空的内腔；
    导向组件，第一端固定于所述第二端面，且所述导向组件设置于第二冷媒口和第三冷媒口之间；
    阻挡元件，包括滑动端和封堵端，其中，所述滑动端与所述导向组件滑动连接，所述封堵端侧面与所述内腔的壁面贴合，且在所述滑动端的带动下沿内腔的壁面滑动；和，
    第一定位元件，设置于所述导向组件的第二端，用于止挡所述阻挡元件，
    其中，当所述阻挡元件位于第一位置时，封堵所述第三冷媒口，使冷媒从所述第一冷媒口流入，从所述第二冷媒口流出；当所述阻挡元件位于第二位置时，导通所述第三冷媒口，使冷媒从所述第二冷媒口和第三冷媒口流入，从所述第一冷媒口流出。
  2. 根据权利要求1所述的单向分流装置，其特征在于，
    所述阻挡元件的厚度为第一厚度D1；
    所述导向组件的高度为第一高度H1；且，
    所述壳体的高度为第二高度H2，
    其中，所述第一厚度D1小于第一高度H1，且，所述第一高度H1小于第二高度H2。
  3. 根据权利要求2所述的单向分流装置，其特征在于，
    所述第一厚度D1小于或等于1/2倍的第一高度H1；和/或，
    所述第一高度H1小于或等于1/3倍的第二高度H2。
  4. 根据权利要求1至3任一项所述的单向分流装置，其特征在于，
    所述阻挡元件滑动端设置有滑动槽，所述滑动槽与所述导向组件滑动连接。
  5. 根据权利要求1至4任一项所述的单向分流装置，其特征在于，还包括：
    止挡杆，与所述导向组件的第二端固定连接。
  6. 根据权利要求1至5任一项所述的单向分流装置，其特征在于，还包括：
    第二定位元件，设置于所述壳体内腔的壁面，与所述第一定位元件相对设置。
  7. 根据权利要求1至6任一项所述的单向分流装置，其特征在于，
    所述第一冷媒口的面积大于所述第二冷媒口和第三冷媒口的面积。
  8. 根据权利要求1至7任一项所述的单向分流装置，其特征在于，
    所述壳体内腔为圆柱形；且，
    所述阻挡元件为半圆形。
  9. 根据权利要求7所述的单向分流装置，其特征在于，
    所述第三冷媒口为圆形，所述第三冷媒口的面积为第一面积S1；且，
    所述阻挡元件封堵端的面积为第二面积S2，
    其中，所述第一面积S1小于第二面积S2。
  10. 一种可变分流换热器，其特征在于，包括：
    如权利要求1至9任一项所述的单向分流装置。
  11. 根据权利要求10所述的可变分流换热器，其特征在于，还包括：
    第一换热通路，第一端与所述单向分流装置的第二冷媒口连接，第二端与第一分流元件连接；
    第二换热通路，第一端与所述第一分流元件连接，第二端与第二分流元件连接；
    第三换热通路，第一端与所述第二分流元件连接，第二端与第三分流元件连接；
    第一汇流管路，第一端与所述单向分流装置的第三冷媒口连接，第二端与所述第二分流元件连接；
    第二汇流管路，第一端与所述第一分流元件连接，第二端与所述第三分流元件连接；和，
    第一单向阀，设置于所述第二汇流管路，且导通方向为从所述第三分流元件至所述第一分流元件。
PCT/CN2022/138612 2022-07-21 2022-12-13 单向分流装置和可变分流换热器 WO2024016571A1 (zh)

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