WO2024016588A1 - 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
WO2024016588A1
WO2024016588A1 PCT/CN2022/140881 CN2022140881W WO2024016588A1 WO 2024016588 A1 WO2024016588 A1 WO 2024016588A1 CN 2022140881 W CN2022140881 W CN 2022140881W WO 2024016588 A1 WO2024016588 A1 WO 2024016588A1
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WIPO (PCT)
Prior art keywords
refrigerant
refrigerant port
area
blocking element
heat exchange
Prior art date
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PCT/CN2022/140881
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English (en)
French (fr)
Inventor
丁爽
王飞
崔文娟
蒋骏
祖佳红
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 WO2024016588A1 publication Critical patent/WO2024016588A1/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 conditioners are devices used by people to adjust the temperature and humidity in a certain environment.
  • Existing air conditioners generally mainly include an indoor heat exchanger, an outdoor heat exchanger and a refrigerant circulation system, in which refrigerant is filled for heat exchange to achieve the effect of temperature regulation. Therefore, the heat exchange efficiency of the refrigerant is also one of the main factors affecting the temperature adjustment of the air conditioner.
  • 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.
  • 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.
  • 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 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 first end surface.
  • the blocking element is slidably connected to the guide assembly, and there is a gap between the blocking element and the inner cavity wall of the housing.
  • the positioning element is arranged at the second end of the guide assembly and is used to stop the blocking element.
  • the blocking element when the blocking element is in the first position, the first refrigerant port is blocked, so that the refrigerant flows in from the second refrigerant port and flows out from the third refrigerant port.
  • the blocking element when the blocking element is in the second position, the first refrigerant port is opened, so that the refrigerant flows in from the first refrigerant port and flows out from the second refrigerant port and the third refrigerant port.
  • the guide assembly includes a first guide rail set and a second guide rail set.
  • the first guide rail group is disposed on one side of the first refrigerant port.
  • the second guide rail group is disposed on the other side of the first refrigerant port.
  • the housing cavity is cylindrical and the blocking element is circular.
  • the first refrigerant port is circular, the area of the first refrigerant port is the first area S1, and the area of the blocking element is the second area S2. Wherein, the first area S1 is smaller than the second area S2.
  • the cross-sectional area of the inner cavity of the housing is the third area S3.
  • the first area S1 is less than or equal to 4/5 of the second area S2
  • the second area S2 is less than or equal to 4/5 of the third area S3.
  • the thickness of the blocking element is a first thickness D1
  • the height of the guide component is a first height H1
  • the height of the inner cavity of the housing is a second height H2.
  • the first thickness D1 is smaller than the first height H1
  • 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 1/2 times the second height H2.
  • the blocking element is configured as a solid structure or a hollow structure.
  • 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 valve body .
  • the first end of the first heat exchange passage is connected to the first diverting element, and the second end is connected to the second refrigerant port of the one-way diverting device.
  • the first end of the second heat exchange passage is connected to the third refrigerant port of the one-way splitting device, and the second end is connected to the second splitting 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 first diverter element, and the second end is connected to the second diverter element.
  • the first end of the second manifold pipe is connected to the first refrigerant port of the one-way diverter device, and the second end is connected to the third diverter element.
  • the first valve body is disposed in the first manifold pipeline.
  • the blocking element When the blocking element is located in the first position, it can block the refrigerant from flowing out of the first 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 first refrigerant port and flows out from the second refrigerant port and the third refrigerant port to divert the refrigerant flowing in from the first refrigerant port. 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.
  • 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 guide assembly 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 blocking element provided by an embodiment of the present disclosure.
  • Figure 8 is a schematic structural diagram of another blocking element provided by an embodiment of the present disclosure.
  • Figure 9 is a refrigerant flow diagram of a variable split flow heat exchanger provided by an embodiment of the present disclosure.
  • Figure 10 is a refrigerant flow diagram of another variable split flow heat exchanger provided by an embodiment of the present disclosure.
  • 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 valve body 902.
  • the first end of the first heat exchange passage 501 is connected to the first diverter element 801 , and the second end is connected to the fourth diverter element 804 .
  • the first end of the second manifold pipe 602 is connected to the fourth diverter element 804 , and the second end is connected to the third diverter element 803 .
  • the second valve body 902 is provided in the second manifold pipe 602 .
  • the second valve body is configured as a one-way valve, and the conduction direction is defined from the third diverter element 803 to the fourth diverter element 804 .
  • the 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 running in the heating mode , the first valve body 901 and the second valve body 902 are in a conductive 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, so that the refrigerant flows through the first heat exchange passage respectively.
  • this heat exchanger can not only extend the flow path length of the high-temperature refrigerant in the heat exchanger under refrigeration conditions, so that the refrigerant can fully exchange heat to increase the degree of subcooling, but can also avoid under heating conditions.
  • the pressure loss problem caused by the long flow path of the refrigerant can ensure the needs of the heat exchanger under different working conditions at the same time.
  • the second valve body 902 to the second manifold pipe 602 to achieve different refrigerant flow paths during cooling and heating will increase the number of welding spots in the second manifold pipe 602 .
  • the distance between welding points between the fourth branching element 804, the second valve body 902, and the third branching element 803 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 7 .
  • a one-way diverting device 7 includes a housing 1 , a guide assembly 2 , a blocking element 4 and a positioning element 3 .
  • the housing 1 includes a first refrigerant port 101 provided on the first end surface, a second refrigerant port 102 and a third refrigerant port 103 provided on the second end surface, wherein the housing 1 has a hollow inner cavity.
  • the first end of the guide component 2 is fixed on the first end surface.
  • the blocking element 4 is slidably connected to the guide assembly 2 , and there is a gap between the blocking element 4 and the inner cavity wall of the housing 1 .
  • the positioning element 3 is provided at the second end of the guide assembly 2 for blocking the blocking element 4 .
  • the blocking element 4 When the blocking element 4 is in the first position, the first refrigerant port 101 is blocked, so that the refrigerant flows in from the second refrigerant port 102 and flows out from the third refrigerant port 103, as shown in FIG. 4 .
  • the blocking element 4 When the blocking element 4 is in the second position, the first refrigerant port 101 is opened, allowing the refrigerant to flow in from the first refrigerant port 101 and flow out from the second refrigerant port 102 and the third refrigerant port 103, as shown in FIG. 5 .
  • the blocking element 4 can be pushed upward or downward along the guide assembly 2 by the pressure generated when the refrigerant flows.
  • the refrigerant when the refrigerant flows in from the second refrigerant port 102, the refrigerant pushes the blocking member 4 to slide downward.
  • the pressure exerted by the refrigerant causes the blocking element 4 to slide to the first position along the guide assembly 2 to block the first refrigerant port 101, so that the refrigerant cannot flow out through the first refrigerant port 101 but can only flow out through the third refrigerant port 103, as shown in Figure 4 shown.
  • the refrigerant When the refrigerant flows in from the first refrigerant port 101, the refrigerant pushes the blocking member 4 to slide upward.
  • the pressure exerted by the refrigerant causes the blocking element 4 to slide to the second position along the guide assembly 2 to connect the first refrigerant port 101.
  • the refrigerant flows in from the first refrigerant port 101 and then flows from the gap between the blocking element 4 and the inner cavity wall of the housing 1.
  • the second refrigerant port 102 and the third refrigerant port 103 then flow out from the second refrigerant port 102 and the third refrigerant port 103, as shown in Figure 5 .
  • the positioning element 3 can stop the blocking element 4 to prevent the blocking element 4 from leaving the guide assembly 2.
  • the blocking element 4 when the blocking element 4 is in the first position, the first refrigerant port 101 is blocked, so that the refrigerant cannot flow out through the first refrigerant port 101 .
  • the blocking element 4 When the blocking element 4 is in the second position, the first refrigerant port 101 is connected, so that refrigerant can flow in through the first refrigerant port 101, as shown in FIG. 4 .
  • the blocking element 4 allows the refrigerant in the corresponding flow path of the first refrigerant port 101 to flow in only from the first refrigerant port 101 and to flow out from the second refrigerant port 102 and the third refrigerant port 103 to achieve one-way flow of refrigerant.
  • the refrigerant can flow in from the first refrigerant port 101 and then flow out from the second refrigerant port 102 and the third refrigerant port 103 .
  • the refrigerant in the flow path corresponding to the first refrigerant port 101 flows into the one-way diverting device 7, it simultaneously flows into the flow paths corresponding to the second refrigerant port 102 and the third refrigerant port 103 to achieve splitting of the refrigerant. Therefore, the above-mentioned one-way diverting device 7 can slide to the first position or the second position through the blocking element 4 to achieve the effects of making the refrigerant flow in one direction and diverting the refrigerant respectively.
  • the guide assembly 2 includes a first guide rail group 201 and a second guide rail group 202 .
  • the first guide rail group 201 is disposed on one side of the first refrigerant port 101 .
  • the second guide rail group 202 is provided on the other side of the first refrigerant port 101 .
  • first guide rail group 201 and the second guide rail group 202 are arranged parallel to each other.
  • the first guide rail group 201 is arranged vertically on the first end surface of the inner cavity of the housing 1 and on one side of the first refrigerant port 101 .
  • the second guide rail group 202 is arranged vertically on the first end surface of the inner cavity of the housing 1 and on the other side of the first refrigerant port 101 .
  • the first guide rail group 201 and the second guide rail group 202 adopt the same structure.
  • the first guide rail group 201 and the second guide rail group 202 have the same width, the same height, etc., to improve the stability of the connection between the blocking element 4 and the guide assembly 2 and the stability of the blocking element 4 sliding along the guide assembly 2 .
  • the first guide rail group 201 is also provided with a stop rod 203 , and the stop rod 203 is vertically fixedly connected to the second end of the first guide rail group 201 .
  • the second guide rail group 202 is also provided with a stop rod 203 , and the stop rod 203 is vertically and fixedly connected to the second end of the second guide rail group 202 .
  • positioning elements 3 and stop bars 203 are provided at the second ends of the first guide rail group 201 and the second guide rail group 202 to stop the blocking element 4, thereby improving the stability of the blocking element 4 when it is located in the second position. .
  • the inner cavity of the housing 1 is cylindrical, and the blocking element 4 is circular.
  • the first refrigerant port 101 is circular, the area of the first refrigerant port 101 is the first area S1, and the area of the blocking element 4 is the second area S2. Wherein, the first area S1 is smaller than the second area S2.
  • the first area S1 is smaller than the second area S2, so that when the blocking element 4 is located in the first position, the first refrigerant port 101 can be completely blocked and the refrigerant is prevented from flowing out of the first refrigerant port 101.
  • the cross-sectional area of the inner cavity of the housing 1 is the third area S3.
  • the first area S1 is less than or equal to 4/5 of the second area S2
  • the second area S2 is less than or equal to 4/5 of the third area S3.
  • the first area S1 is less than or equal to 4/5 of the second area S2 to ensure that the first refrigerant port 101 can be completely blocked when the blocking element 4 is located in the first position.
  • the first area S1 is 3/4, 2/3 or 1/2 of the second area S2.
  • the second area S2 is less than or equal to 4/5 of the third area S3, so that when the blocking element 4 is in the second position and the refrigerant flowing into the first refrigerant port 101 flows through the gap, the flow rate and flow rate of the refrigerant are more uniform.
  • the second area S2 is 3/4, 2/3 or 1/2 of the third area S3.
  • the blocking element 4 is provided with a guide groove 401.
  • the blocking element 4 is slidably connected to the guide assembly 2 through the guide groove 401 .
  • the blocking element 4 is slidably connected to the guide assembly 2 through the guide groove 401 to make the blocking element 4 more stable when the refrigerant pushes the blocking element 4 to slide along the guide assembly 2 .
  • the blocking element 4 is provided with guide holes 402.
  • the blocking element 4 is slidably connected to the guide assembly 2 through the guide hole 402 .
  • the blocking element 4 is slidably connected to the guide assembly 2 through the guide hole 402 to make the blocking element 4 more stable when the refrigerant pushes the blocking element 4 to slide along the guide assembly 2 .
  • the thickness of the blocking element 4 is the first thickness D1
  • the height of the guide assembly 2 is the first height H1
  • the height of the inner cavity of the housing 1 is the second height H2.
  • the first thickness D1 is smaller than the first height H1
  • the first height H1 is smaller than the second height H2, as shown in FIG. 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 1/2 times the second height H2.
  • the blocking element 4 when the blocking element 4 is in the second position, as shown in FIG. 5 , there is a sufficient flow gap between the blocking element 4 and the first refrigerant port 101 to allow the refrigerant to flow in smoothly from the first refrigerant port 101 .
  • sufficient flow gaps are left between the blocking element 4 and the second refrigerant port 102 and the third refrigerant port 103 to allow the refrigerant to flow out smoothly from the second refrigerant port 102 and the third refrigerant port 103 .
  • 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 1/2, 1/3, 1/4 or 1/5 of the second height H2.
  • the blocking element 4 is configured as a solid structure or a hollow structure.
  • configuring the blocking element 4 as a hollow structure can make the refrigerant push the blocking element 4 to slide along the guide assembly 2 more stably, and avoid the situation where the refrigerant cannot push the blocking element 4 to slide. .
  • the second end surface of the housing 1 is located above the first end surface.
  • the second end surface of the housing 1 is located above the first end surface, so that the blocking element 4 is in the first position when it is not squeezed by the refrigerant, that is, the initial position of the blocking element 4 is the first position.
  • the refrigerant flows in from the second refrigerant port 102, it will not flow out from the first refrigerant port 101 through the gap because the blocking element 4 does not slide to the first position in time.
  • the area of the second refrigerant port 102 is equal to the area of the third refrigerant port 103 .
  • the area of the second refrigerant port 102 is equal to the area of the third refrigerant port 103.
  • the flow rate and flow rate of the refrigerant are more uniform.
  • the area of the first refrigerant port 101 is larger than the areas of the second refrigerant port 102 and the third refrigerant port 103 .
  • An embodiment of the present disclosure also provides a variable split flow heat exchanger.
  • variable split flow heat exchanger includes the one-way split flow device 7 described above.
  • the above-mentioned one-way splitting device 7 has the function of making the refrigerant flow in the corresponding flow path in one direction, so the pipeline in the above-mentioned variable splitting heat exchanger connected to the first refrigerant port 101 of the above-mentioned one-way splitting device 7 does not need to be refrigerant. Installing the diverter component and the one-way valve at the same time can achieve the effect of one-way diverting of the refrigerant.
  • the above-mentioned one-way diverter device 7 can simultaneously realize the functions of a diverter element and a one-way valve, reducing the number of valve bodies on the second manifold pipeline 602, thereby reducing the number of welding points of the valve bodies on the second manifold pipe 602. , to reduce material costs and space costs.
  • a variable split flow heat exchanger further includes a first heat exchange passage 501, a second heat exchange passage 502, a third heat exchange passage 503, a first manifold pipe 601, and a second manifold pipe 602 and first valve body 901.
  • the first end of the first heat exchange passage 501 is connected to the first diverter element 801 , and the second end is connected to the second refrigerant port 102 of the one-way diverter device 7 .
  • the first end of the second heat exchange passage 502 is connected to the third refrigerant port 103 of the one-way diverter device 7 , 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 first diverter element 801 , 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 refrigerant port 101 of the one-way diverter device 7 , and the second end is connected to the third diverter element 803 .
  • the first valve body 901 is provided in the first manifold 601 .
  • the first valve body 901 is configured as a valve body element that can allow the refrigerant in the corresponding flow path to flow in one direction, and the conduction direction is limited from the second flow diverting element 802 to the first diverting element 801 .
  • the first valve body 901 may be a one-way valve or a solenoid valve.
  • the refrigerant in the third split flow element 803 will pass through the second manifold after splitting.
  • the path 602 and the third heat exchange passage 503 flow to the one-way branching device 7 and the second branching element 802 .
  • the refrigerant in the one-way splitting device 7 After the refrigerant in the one-way splitting device 7 is split, it flows to the first splitting element 801 and the second splitting element 802 through the first heat exchange passage 501 and the second heat exchange passage 502 respectively.
  • the refrigerant in the second diverter element 802 flows to the first diverter element 801 through the first manifold pipe 601 .
  • the flow direction of the refrigerant is from the first flow splitting element 801 to the third flow splitting 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 flow splitting element 803 to the first flow splitting element 801 .
  • 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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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一端面。阻挡元件滑动连接于导向组件，且阻挡元件与壳体的内腔壁面之间存在间隙。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，封堵第一冷媒口，使冷媒从第二冷媒口流入，从第三冷媒口流出。当阻挡元件位于第二位置时，导通第一冷媒口，使冷媒从第一冷媒口流入，从第二冷媒口和第三冷媒口流出。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202210859398.9、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
空调器是人们用来调节一定环境内温度和湿度的设备。现有的空调器一般主要包括室内换热器、室外换热器和冷媒循环系统，并在其中充注冷媒进行换热以达到调节温度的效果。因此，冷媒的换热效率也是空调器调节温度的主要影响因素之一。
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。
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一端面。阻挡元件滑动连接于导向组件，且阻挡元件与壳体的内腔壁面之间存在间隙。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，封堵第一冷媒口，使冷媒从第二冷媒口流入，从第三冷媒口流出。当阻挡元件位于第二位置时，导通第一冷媒口，使冷媒从第一冷媒口流入，从第二冷媒口和第三冷媒口流出。
在一些实施例中，导向组件包括第一导轨组和第二导轨组。第一导轨组设置于第一冷媒口的一侧。第二导轨组设置于第一冷媒口的另一侧。
在一些实施例中，壳体内腔为圆柱形，且阻挡元件为圆形。
在一些实施例中，第一冷媒口为圆形，第一冷媒口的面积为第一面积S1，且阻挡元件的面积为第二面积S2。其中，第一面积S1小于第二面积S2。
在一些实施例中，壳体内腔的截面积为第三面积S3。其中，第一面积S1小于或等于第二面积S2的4/5，且第二面积S2小于或等于第三面积S3的4/5。
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，且壳体内腔的高度为第二高度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1/2倍的第二高度H2。
在一些实施例中，阻挡元件被配置为实体结构或中空结构。
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阀体。第一换热通路的第一端与第一分流元件连接，第二端与单向分流装置的第二冷媒口连接。第二换热通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第一分流元件连接，第二端与第二分流元件连接。第二汇流管路的第一端与单向分流装置的第一冷媒口连接，第二端与第三分流元件连接。第一阀体设置于第一汇流管路。
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一冷媒口流出，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一冷媒口流入，从第二冷媒口和第三冷媒口流出，以对从第一冷媒口流入的冷媒进行分流。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。
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导向组件的结构示意图；
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阻挡元件的结构示意图；
图8是本公开实施例提供的另一个阻挡元件的结构示意图；
图9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10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：
1：壳体；101：第一冷媒口；102：第二冷媒口；103：第三冷媒口；2：导向组件；201：第一导轨组；202：第二导轨组；203：止挡杆；3：定位元件；4：阻挡元件；401：导向槽；402：导向孔；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；7：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：第一阀体；902：第二阀体。
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和第二阀体902。其中第一换热通路501的第一端与第一分流元件801连接，第二端与第四分流元件804连接。第二汇流管路602的第一端与第四分流元件804连接，第二端与第三分流元件803连接。第二阀体902设置于第二汇流管路602。其中，第二阀体被配置为单向阀，且导通方向限定为从第三分流元件803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，第一阀体 901和第二阀体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，第一阀体901和第二阀体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，将第二阀体902焊接于第二汇流管路602以实现制冷和制热时冷媒流动路径不同的同时会增加第二汇流管路602的焊点。为了保证焊接安全距离，第四分流元件804、第二阀体902、第三分流元件803两两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7。
如图2至图6所示，在一些实施例中，一种单向分流装置7包括壳体1、导向组件2、阻挡元件4和定位元件3。壳体1包括设置于第一端面的第一冷媒口101，设置于第二端面的第二冷媒口102和第三冷媒口103，其中壳体1具有中空的内腔。导向组件2的第一端固定于第一端面。阻挡元件4滑动连接于导向组件2，且阻挡元件4与壳体1的内腔壁面之间存在间隙。定位元件3设置于导向组件2的第二端，用于止挡阻挡元件4。
其中，当阻挡元件4位于第一位置时，封堵第一冷媒口101，使冷媒从第二冷媒口102流入，从第三冷媒口103流出，如图4所示。当阻挡元件4位于第二位置时，导通第一冷媒口101，使冷媒从第一冷媒口101流入，从第二冷媒口102和第三冷媒口103流出，如图5所示。
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4沿导向组件2向上或向下滑动。
具体地，当冷媒从第二冷媒口102流入时，冷媒推动阻挡元件4向下滑动。冷媒施加的压力使阻挡元件4沿导向组件2滑动至第一位置以封堵第一冷媒口101，进而使冷媒无法通过第一冷媒口101流出而只能通过第三冷媒口103流出，如图4所示。当冷媒从第一冷媒口101流入时，冷媒推动阻挡元件4向上滑动。冷媒施加的压力使阻挡元件4沿导向组件2滑动至第二位置以导通第一冷媒口101，冷媒从第一冷媒口101流入后从阻挡元件4与壳体1内腔壁面的间隙中流向第二冷媒口102和第三冷媒口103，再从第二冷媒口102和第三冷媒口103流出，如图5所示。当冷媒将阻挡元件4推动至第二位置时，定位元件 3可止挡阻挡元件4，以防止阻挡元件4脱离导向组件2。
可见，当阻挡元件4位于第一位置时封堵第一冷媒口101，使冷媒无法通过第一冷媒口101流出。当阻挡元件4位于第二位置时导通第一冷媒口101，使冷媒可通过第一冷媒口101流入，如图4所示。这样，阻挡元件4使第一冷媒口101对应流路内的冷媒只能从第一冷媒口101流入，从第二冷媒口102和第三冷媒口103流出，以实现冷媒的单向流动。
当阻挡元件4位于第二位置时，冷媒可从第一冷媒口101流入后，从第二冷媒口102和第三冷媒口103流出。第一冷媒口101对应流路内的冷媒流入上述单向分流装置7后，同时流至第二冷媒口102和第三冷媒口103对应的流路，以实现对冷媒的分流。因此，上述的单向分流装置7可通过阻挡元件4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。
如图3所示，在一些实施例中，导向组件2包括第一导轨组201和第二导轨组202。第一导轨组201设置于第一冷媒口101的一侧。第二导轨组202设置于第一冷媒口101的另一侧。
具体地，第一导轨组201和第二导轨组202相互平行设置。第一导轨组201垂直设置于壳体1内腔的第一端面，且设置于第一冷媒口101的一侧。类似地，第二导轨组202垂直设置于壳体1内腔的第一端面，且设置于第一冷媒口101的另一侧。
在实施例中，第一导轨组201与第二导轨组202采用相同的结构。例如，第一导轨组201与第二导轨组202的宽度相同、高度相同等，以提高阻挡元件4与导向组件2连接的稳固性和阻挡元件4沿导向组件2滑动的稳定性。
如图3所示，在一些实施例中，第一导轨组201还设置有止挡杆203，止挡杆203与第一导轨组201的第二端垂直固定连接。类似地，第二导轨组202还设置有止挡杆203，止挡杆203与第二导轨组202的第二端垂直固定连接。
具体地，第一导轨组201和第二导轨组202的第二端均设置有定位元件3和止挡杆203以止挡阻挡元件4，进而提高当阻挡元件4位于第二位置时的稳定性。
在一些实施例中，壳体1内腔为圆柱形，且阻挡元件4为圆形。
具体地，阻挡元件4与壳体1内腔壁面之间存在间隙，且阻挡元件4与壳体1内腔为同心设置，以使当从第一冷媒口101流入的冷媒通过间隙流向第二冷媒口102和第三冷媒口103时流量和流速更均匀，如图2所示。
在一些实施例中，第一冷媒口101为圆形，第一冷媒口101的面积为第一面积S1，且阻挡元件4的面积为第二面积S2。其中，第一面积S1小于第二面积S2。
具体地，第一面积S1小于第二面积S2，以使当阻挡元件4位于第一位置时可完全封 堵第一冷媒口101，防止冷媒从第一冷媒口101流出。
在一些实施例中，壳体1内腔的截面积为第三面积S3。其中，第一面积S1小于或等于第二面积S2的4/5，且第二面积S2小于或等于第三面积S3的4/5。
可以理解的是，若阻挡元件4与壳体1内腔壁面之间的间隙过小，则可能会影响冷媒流过间隙时的流速和流量。
具体地，第一面积S1小于或等于第二面积S2的4/5，以保证当阻挡元件4位于第一位置时可完全封堵第一冷媒口101。例如，第一面积S1为第二面积S2的3/4、2/3或1/2。第二面积S2小于或等于第三面积S3的4/5，以使当阻挡元件4位于第二位置，且第一冷媒口101流入的冷媒流过间隙时，冷媒的流速和流量更均匀。例如，第二面积S2为第三面积S3的3/4、2/3或1/2。
如图7所示，在一些实施例中，阻挡元件4设置有导向槽401。阻挡元件4通过导向槽401与导向组件2滑动连接。
具体的，阻挡元件4通过导向槽401与导向组件2滑动连接，以使当冷媒推动阻挡元件4沿导向组件2滑动时更稳定。
如图8所示，在一些实施例中，阻挡元件4设置有导向孔402。阻挡元件4通过导向孔402与导向组件2滑动连接。
具体的，阻挡元件4通过导向孔402与导向组件2滑动连接，以使当冷媒推动阻挡元件4沿导向组件2滑动时更稳定。
在一些实施例中，阻挡元件4的厚度为第一厚度D1，导向组件2的高度为第一高度H1，且壳体1内腔的高度为第二高度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。
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1/2倍的第二高度H2。
具体地，当阻挡元件4位于第二位置时，如图5所示的位置，阻挡元件4与第一冷媒口101之间留有足够的流动间隙可以使冷媒顺利从第一冷媒口101流入。同时，阻挡元件4与第二冷媒口102和第三冷媒口103之间也留有足够的流动间隙可以使冷媒顺利从第二冷媒口102和第三冷媒口103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1/2、1/3、1/4或1/5。
在一些实施例中，阻挡元件4被配置为实体结构或中空结构。
可以理解的是，在冷媒流量较小的情况下，将阻挡元件4配置为中空结构，可以使冷媒推动阻挡元件4沿导向组件2滑动时更稳定，避免出现冷媒无法推动阻挡元件4滑动的 情况。
可选地，壳体1的第二端面位于第一端面的上方。
具体地，壳体1的第二端面位于第一端面的上方，使阻挡元件4在不受冷媒挤压时位于第一位置，即阻挡元件4的初始位置为第一位置。这样，当冷媒从第二冷媒口102流入时，不会因为阻挡元件4未及时滑动至第一位置而通过间隙从第一冷媒口101流出。
在一些实施例中，第二冷媒口102的面积等于第三冷媒口103的面积。
具体地，第二冷媒口102的面积等于第三冷媒口103的面积，当冷媒从第二冷媒口102流入并从第三冷媒口103流出的过程中，冷媒的流量和流速更均匀。
在一些实施例中，第一冷媒口101的面积大于第二冷媒口102和第三冷媒口103的面积。
本公开实施例还提供一种可变分流换热器。
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7。
具体地，上述的单向分流装置7具有使对应流路内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7第一冷媒口101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7可同时实现分流元件和单向阀的作用，减少了第二汇流管路602上的阀体数量，进而减少了第二汇流管路602上阀体的焊接点，以降低材料成本和空间成本。
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和第一阀体901。第一换热通路501的第一端与第一分流元件801连接，第二端与单向分流装置7的第二冷媒口102连接。第二换热通路502的第一端与单向分流装置7的第三冷媒口103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的第一端与第一分流元件801连接，第二端与第二分流元件802连接。第二汇流管路602的第一端与单向分流装置7的第一冷媒口101连接，第二端与第三分流元件803连接。第一阀体901设置于第一汇流管路601。
其中，第一阀体901被配置为可使对应流路内的冷媒单向流动的阀体元件，且导通方向限定为从第二分流元件802至第一分流元件801。例如，第一阀体901可以为单向阀或电磁阀等。
可以理解的是，由于第一阀体901的导通方向限定为从第二分流元件802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一汇流管路601流至第二分流元件802。
具体地，如图9所示，当可变分流换热器中的冷媒流向为从第一分流元件801流至第三分流元件803时，第一分流元件801内的冷媒通过第一换热通路501流至单向分流装置7。单向分流装置7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10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至第一分流元件801时，第三分流元件803内的冷媒经过分流后，分别通过第二汇流管路602和第三换热通路503流至单向分流装置7和第二分流元件802。单向分流装置7内的冷媒经过分流后，分别通过第一换热通路501和第二换热通路502流至第一分流元件801和第二分流元件802。第二分流元件802内冷媒通过第一汇流管路601流至第一分流元件801。
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，冷媒的流向为从第一分流元件801流至第三分流元件803。此时，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流至第一分流元件801。此时，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。
在一些实施例中，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。
在一些实施例中，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 (10)

  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一端面；
    阻挡元件，滑动连接于所述导向组件，且，所述阻挡元件与所述壳体的内腔壁面之间存在间隙；和，
    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，封堵所述第一冷媒口，使冷媒从所述第二冷媒口流入，从所述第三冷媒口流出；当所述阻挡元件位于第二位置时，导通所述第一冷媒口，使冷媒从所述第一冷媒口流入，从所述第二冷媒口和第三冷媒口流出。
  2. 根据权利要求1所述的单向分流装置，其特征在于，所述导向组件包括：
    第一导轨组，设置于所述第一冷媒口的一侧；和，
    第二导轨组，设置于所述第一冷媒口的另一侧。
  3. 根据权利要求1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，
    所述阻挡元件为圆形。
  4. 根据权利要求3所述的单向分流装置，其特征在于，
    所述第一冷媒口为圆形，所述第一冷媒口的面积为第一面积S1；且，
    所述阻挡元件的面积为第二面积S2，
    其中，所述第一面积S1小于第二面积S2。
  5. 根据权利要求4所述的单向分流装置，其特征在于，
    所述壳体内腔的截面积为第三面积S3，
    其中，第一面积S1小于或等于第二面积S2的4/5，且，第二面积S2小于或等于第三面积S3的4/5。
  6. 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，
    所述壳体内腔的高度为第二高度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。
  7. 根据权利要求6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1/2倍的第二高度H2。
  8. 根据权利要求1所述的单向分流装置，其特征在于，
    所述阻挡元件被配置为实体结构或中空结构。
  9. 一种可变分流换热器，其特征在于，包括：
    如权利要求1至8任一项所述的单向分流装置。
  10. 根据权利要求9所述的可变分流换热器，其特征在于，还包括：
    第一换热通路，第一端与第一分流元件连接，第二端与所述单向分流装置的第二冷媒口连接；
    第二换热通路，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，第一端与所述第一分流元件连接，第二端与所述第二分流元件连接；
    第二汇流管路，第一端与所述单向分流装置的第一冷媒口连接，第二端与所述第三分流元件连接；和，
    第一阀体，设置于所述第一汇流管路。
PCT/CN2022/140881 2022-07-21 2022-12-22 单向分流装置和可变分流换热器 WO2024016588A1 (zh)

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