WO2020147628A1 - 自适应节流装置及空调器 - Google Patents

自适应节流装置及空调器 Download PDF

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Publication number
WO2020147628A1
WO2020147628A1 PCT/CN2020/070955 CN2020070955W WO2020147628A1 WO 2020147628 A1 WO2020147628 A1 WO 2020147628A1 CN 2020070955 W CN2020070955 W CN 2020070955W WO 2020147628 A1 WO2020147628 A1 WO 2020147628A1
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Prior art keywords
cavity
valve body
hole
connecting hole
throttling device
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PCT/CN2020/070955
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English (en)
French (fr)
Inventor
贺宝林
白云忠
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宁波奥克斯电气股份有限公司
奥克斯空调股份有限公司
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Publication of WO2020147628A1 publication Critical patent/WO2020147628A1/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
    • F25B41/30—Expansion means; Dispositions thereof

Definitions

  • the embodiment of the present disclosure relates to an adaptive throttling device and an air conditioner.
  • the throttle valve used in the air conditioner is usually a capillary tube plus a one-way valve and an electronic expansion valve device.
  • the problem is that the capillary tube plus a one-way valve device has too many solder joints and welding blockage during welding. Occurs from time to time, the workmanship is complicated, and the production efficiency is low; the use of electronic expansion valve throttling has large limitations, and electronic control is needed to adjust the valve step, and the cost is high.
  • the embodiments of the present disclosure aim to provide an adaptive throttling device to solve the problems of complex structure of the known throttling device, prone to welding blockage, and high cost.
  • An adaptive throttling device includes:
  • the housing is provided with a first cavity and a second cavity, the first cavity and the second cavity are communicated with each other through a first connection hole and a second connection hole, and the housing is provided with There are a first through hole and a second through hole, the first through hole is suitable for communicating the first cavity and the end of the pipeline opposite to the throttling device, and the second through hole is suitable for communicating the The second cavity and the other end of the pipeline opposite to the throttling device;
  • valve body the valve body includes a first valve body and a second valve body, the first valve body is adapted to close the first connection hole when the pressure in the first cavity is greater than the pressure in the second cavity ,
  • the first valve body is suitable for opening the first connecting hole when the pressure in the first cavity is less than the pressure in the second cavity, and the second valve body is suitable for the pressure in the first cavity
  • the second connecting hole is opened when the pressure in the second cavity is greater than that, and the second valve body is adapted to close the second connecting hole when the pressure in the first cavity is less than the pressure in the second cavity.
  • first connecting hole and the second connecting hole are tapered through holes, an end of the first connecting hole with a larger diameter faces the first cavity, and the second connecting hole has a larger diameter One end faces the second cavity.
  • the shape of the first valve body matches the shape of the first connecting hole
  • the shape of the second valve body matches the shape of the second connecting hole
  • a first elastic member is provided between an end of the first valve body close to the first cavity and the inner wall of the first cavity, and the second valve body is close to the inner wall of the second cavity.
  • a second elastic member is provided between one end and the inner wall of the second cavity.
  • first elastic member and the second elastic member both include a spring, and the spring is in an original state or a compressed state when there is no refrigerant flowing.
  • the outer side of the first elastic member is covered with a first fixed shell or the inner side is provided with a first fixed column
  • the outer side of the second elastic member is covered with a second fixed shell or the inner side is provided with a second fixed column.
  • first connecting hole with a smaller diameter is connected to the second cavity through a first through hole
  • second connecting hole is connected to the first cavity through a second through hole
  • the end of the first valve body facing the second cavity is provided with a first connecting block matching the shape of the first perforation
  • the end of the second valve body facing the first cavity is provided with a The second connecting block with a matching shape of the second perforation.
  • first perforation is cylindrical or prismatic
  • second perforation is cylindrical or prismatic
  • the axis of the first through hole coincides with the axis of the second connecting hole
  • the axis of the second through hole coincides with the axis of the first connecting hole
  • the adaptive throttling device described in the embodiments of the present disclosure has the following advantages:
  • the self-adaptive throttling device relies on the pressure difference to control the opening and closing of the valve during operation, the refrigerant can flow in both directions, and the opening of the valve body is adaptively adjusted for throttling without the need for other controls ,
  • the structure is simple, the cost is low; the valve body can be impacted by the flow of the refrigerant, which is convenient to realize the rapid opening of the valve body.
  • Another objective of the embodiments of the present disclosure is to provide an air conditioner including any of the above-mentioned adaptive throttling devices.
  • the air conditioner has the same advantages as the above-mentioned adaptive throttling device over the known technology, and will not be repeated here.
  • Figure 1 is a schematic diagram of an adaptive throttling device according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of the flow directions of the refrigeration refrigerant and the heating refrigerant according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a first fixed shell and a second fixed shell according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of the first fixing column and the second fixing column according to an embodiment of the present invention.
  • Fig. 5 is an enlarged view of A in Fig. 4.
  • first and second mentioned in the embodiments of the present invention are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. .
  • the features defined with “first” and “second” may explicitly or implicitly include one or more of these features.
  • This embodiment provides an adaptive throttling device. As shown in FIG. 1, it includes a housing 1 and a valve body 2.
  • the housing 1 is provided with a first cavity 11 and a second cavity 12, and the first cavity
  • the first cavity 11 and the second cavity 12 are separated from the second cavity 12 by the intermediate connection part of the housing 1, and the first cavity 11 and the second cavity 12 are communicated with the second connection hole 14 through the first connection hole 13, and the first connection
  • the shape of the hole 13 is the same as the shape of the second connecting hole 14.
  • a first through hole 15 is provided on the upper end of the housing 1, and the first through hole 15 connects the first cavity 11 with the end of the pipeline 5 opposite to the throttling device.
  • the cooling medium or heating mode refrigerant in the upper section of the pipeline 5 can circulate between the pipeline 5 and the first cavity 11 through the first through hole 15.
  • the lower end of the housing 1 is provided with a second through hole 16, and
  • the two through holes 16 connect the second cavity 11 and the pipe 5 with respect to the other end of the throttling device.
  • the cooling mode refrigerant or heating mode refrigerant in the lower section of the pipe 5 can pass through the second through hole 16 to realize the pipe 5 and the second end. Circulation between the two cavities 12.
  • the valve body 2 includes a first valve body 21 and a second valve body 22. If there is a heating mode refrigerant or a cooling mode refrigerant flowing into the first cavity 11 in the upper section of the pipe 5, this embodiment assumes that the upper section of the pipe 5 has a heating mode The refrigerant flows in. At this time, the pressure in the first cavity 11 is greater than the pressure in the second cavity 12.
  • the first valve body 21 closely adheres to the inner wall of the first connecting hole 13 under the action of the pressure. 13 is in the closed state, the second valve body 22 is separated from the second connecting hole 14 under the action of pressure. At this time, a gap is formed between the second connecting hole 14 and the second valve body 22, and the second connecting hole 14 is in an open state.
  • Time heating mode refrigerant enters the second cavity 12 through the second connecting hole 14, and then enters the lower section of the pipeline 5 through the second through hole 16; if there is a heating mode refrigerant or a cooling mode refrigerant in the lower section of the pipeline 5
  • the cooling medium flows in the lower section of the pipeline 5.
  • the pressure in the second cavity 12 is greater than the pressure in the first cavity 11, and the first valve body 21 plays a role in the pressure
  • the first connecting hole 13 is separated from the lower part.
  • a gap is formed between the first connecting hole 13 and the first valve body 21, the first connecting hole 13 is in an open state, and the second valve body 22 is connected to the second connecting hole under pressure.
  • the inner wall of 14 is closely attached, and the second connecting hole 14 is in a closed state. At this time, the cooling mode refrigerant enters the first cavity 11 through the first connecting hole 13, and then enters the upper section of the pipeline 5 through the first through hole 15 .
  • the adaptive throttling device described in this embodiment relies on the pressure difference to control the opening and closing of the valve during operation.
  • the refrigerant can flow in both directions, and the valve body opening can be adjusted adaptively for throttling without other controls.
  • the structure is simple and the cost is low.
  • the throttling device is arranged in the pipeline 5, the inner wall of the pipeline 5 is provided with a limiting protrusion 51, and the limiting protrusion 51 is provided above and below the throttle device.
  • the limiting protrusion 51 is a protrusion or a convex ring formed by squeezing the pipeline 5 inward, and the limiting protrusion 51 can limit and seal the throttling device.
  • both the first connecting hole 13 and the second connecting hole 14 are tapered through holes, including conical or pyramidal shapes.
  • the first connecting hole 13 and the second connecting hole 14 are conical, the tip of the first connecting hole 13 is also in communication with the second cavity 12, and faces the second cavity 12, that is, the first connecting hole 13 has a larger diameter
  • One end faces the first cavity 11
  • the shape of the first valve body 21 is the same as the shape of the first connecting hole 13
  • the upper end of the first valve body 21 is fixedly connected to the first elastic member 3, and the first elastic member 3 can be installed in the first valve
  • the body 21 supports the first valve body 21 when subjected to an upward force, and pushes the first valve body 21 when the first valve body 21 is not stressed, so that the first valve body 21 and the first connecting hole 13 fit together, which is better
  • the first elastic member 3 is a spring.
  • the first elastic member 3 is a compression spring.
  • the upper end of the first elastic member 3 is fixedly connected with the upper inner wall of the housing 1.
  • the first cavity 11 and the second cavity 12 When the pressure difference between the first elastic member 3 is zero, the first elastic member 3 is in the initial state (non-compressed and non-extended state) or compressed state.
  • the length of the first elastic member 3 guarantees the first A valve body 21 is attached to the inner wall of the first connecting hole 13.
  • the first valve body 21 When the first elastic member 3 is in a compressed state, the first valve body 21 is closely attached to the inner wall of the first connecting hole 13 under the action of the first elastic member 3 Close the first connecting hole 13; the tip of the second connecting hole 14 also communicates with the first cavity 11 and faces the first cavity 11, that is, the larger end of the second connecting hole 14 faces the first cavity.
  • the shape of the second valve body 22 is the same as the shape of the second connecting hole 14, the lower end of the second valve body 22 is fixedly connected to the second elastic member 4, the second elastic member 4 can be received downward on the second valve body 22 When the force of the second valve body 22 is supported, and when the second valve body 22 is not stressed, the second valve body 22 is pushed to make the second valve body 22 fit the second connecting hole 14, preferably, the second elasticity
  • the member 4 is a spring. In this embodiment, it is a compression spring.
  • the lower end of the second elastic member 4 is fixedly connected to the lower inner wall of the housing 1.
  • the second elastic member 4 is a compression spring.
  • the second elastic member 4 When the pressure difference between the body 11 and the second cavity 12 is zero, the second elastic member 4 is in the initial state (non-compressed and non-extended state) or compressed state. When the second elastic member 4 is in the initial state, the second elastic member 4 is in the initial state. The length of the two elastic members 4 ensures that the second valve body 22 is in close contact with the inner wall of the second connecting hole 14.
  • the second valve body 22 When the second elastic member 4 is in a compressed state, the second valve body 22 interacts with the first valve body 22 under the action of the second elastic member 4
  • the inner walls of the two connecting holes 14 are tightly attached to close the second connecting hole 14 to prevent the refrigerant in the cooling mode or heating mode from entering the first cavity 11 or the second cavity 12, the first connecting hole 13 or the second cavity
  • the second connecting hole 14 is already in an open state, and there will be no pressure difference between the first cavity 11 and the second cavity 12, the throttle device cannot open and close the connecting hole according to the pressure difference, and the compression spring is also effective Provides resistance to the external load pressure.
  • a compression spring is taken as an example.
  • the axis of the first through hole 15 coincides with the axis of the second connecting hole 14, and the axis of the second through hole 16 coincides with the axis of the first connecting hole 13.
  • the position of the through hole coincides with that of the connecting hole. The position is set on the same line, so that when the refrigerant just enters the cavity, the pressure in the cavity can be impacted by the flow force before the equilibrium value, which is convenient to realize the rapid opening of the valve body.
  • a first fixed shell 31 is provided on the outer side of the first elastic member 3, and the first fixed shell 31 is sleeved on the outer side of the first elastic member 3 to prevent The first elastic member 3 sways from side to side, and can affect the support of the first elastic member 3 to the first valve body 21 when the internal air is circulating.
  • the first fixed shell 31 is a cylindrical hollow penetrating box. The top end of a fixed shell 31 is fixedly connected to the upper inner wall of the shell 1, and a gap is left between the bottom of the first fixed shell 31 and the first valve body 21 to prevent the first fixed shell 31 from obstructing the upward movement of the first valve body 21.
  • the second elastic member 4 is provided with a second fixed shell 41 on the outside.
  • the ring is sleeved on the outside of the second elastic member 4, which can prevent the second elastic member 4 from shaking left and right, and can affect the support of the second elastic member 4 on the second valve body 22 when the internal air is circulating.
  • the fixed shell 41 is also a cylindrical hollow penetrating box body. The bottom end of the second fixed shell 41 is fixedly connected with the inner wall of the lower part of the housing 1.
  • through holes are provided on the side walls of the first fixed housing 31 and the second fixed housing 41 to facilitate the circulation of the media and prevent the first fixed housing 31 and the second fixed housing 41 from contacting the media. Circulation acts as a hindrance.
  • first fixing post 32 is provided inside the first elastic member 3, the first elastic member 3 is looped on the first fixing post 32, and the second elastic
  • the inside of the member 4 is provided with a second fixing column 42, and the second elastic member 4 is sleeved on the second fixing column 42.
  • the upper end of the first fixing column 32 is fixedly connected to the upper inner wall of the housing 1.
  • a gap is provided between the bottom of a fixed post 32 and the first valve body 21 to prevent the first fixed post 32 from obstructing the upward movement of the first valve body 21, and can also limit the first elastic member 3 to prevent the first elastic
  • the member 3 is bent to the side during the deformation process; similarly, the lower end of the second fixing column 42 is fixedly connected with the lower inner wall of the housing 1, and the upper part of the second fixing column 42 and the second valve body 22 are provided
  • the gap prevents the second fixed post 42 from obstructing the downward movement of the second valve body 22, can limit the second elastic member 4, and prevent the second elastic member 4 from bending laterally during the deformation process.
  • the smaller end of the first connecting hole 13 communicates with the second cavity 12 through a cylindrical or prismatic first through hole 131, and the second connection
  • the smaller end of the hole 14 communicates with the first cavity 11 through a cylindrical or prismatic second through hole 141.
  • the first through hole 131 is located below the first connecting hole 13, and the second through hole 141 is located on the second connecting hole 14.
  • the upper part when it is a prismatic shape, can be a triangular prism, a quadrangular prism, etc., and can be regular or irregular. Preferably, the regular shape is easier to process and more beautiful.
  • the first valve The shape of the body 21 is the same as the shape of the first connecting hole 13, and a first connecting block 211 matching the shape of the first through hole 131 is also provided under the first valve body 21.
  • the shape of the second valve body 22 is connected to the second connecting hole.
  • the holes 14 have the same shape, and a second connecting block 221 matching the shape of the second perforation 141 is provided above the second valve body 22.
  • the first connecting block 211 and the second connecting block 221 can not only close the first connecting hole 13 and the second connecting hole 14, but also can enlarge the first valve body 21 and the second valve body 22.
  • the area in contact with the external medium makes it easier for pressure to drive the first valve body 21 and the second valve body 22, preventing the sharp-angled valve body from being driven by pressure to move.
  • This embodiment provides a control method of an adaptive throttling device on the basis of the foregoing embodiment, which includes the following steps:
  • the first valve body 21 When the heating mode refrigerant flows into the first cavity 11 through the first through hole 15, the pressure Fa in the first cavity 11 is greater than the pressure Fb in the second cavity 12, and the pressure Fa and the first elastic member 3 Bottom, the first valve body 21 is in close contact with the inner wall of the first connecting hole 13, and the first connecting hole 13 is in a closed state.
  • the pressure Fa in the first cavity 11 gradually increases and increases to between the pressure Fa and the pressure Fb
  • the second valve body 22 When the difference is greater than the elastic force of the second elastic member 4, the second valve body 22 gradually moves away from the second connecting hole 14, and a gap is formed between the second valve body 22 and the second connecting hole 14.
  • the second elastic member 4 As the second elastic member 4 is compressed, The elastic force gradually increases, the difference between the final pressure Fa and the pressure Fb and the elastic force of the second elastic member 4 reach a balanced state, the second connecting hole 14 is in an open state, and the heating mode refrigerant passes through the second connecting hole 14 from the first A cavity 11 flows into the second cavity 12, and flows out of the throttling device through the second through hole 16, until the heating mode refrigerant is stopped, the pressure in the first cavity 11 drops, and the second valve body 22 Under the action of the elastic force of the second elastic member 4, it gradually approaches the second connecting hole 14 and closes the second connecting hole 14;
  • the elastic force gradually increases
  • the difference between the final pressure Fb and the pressure Fa and the elastic force of the first elastic member 3 reach a balanced state
  • the first connecting hole 13 is in an open state
  • the cooling mode refrigerant flows into the second cavity 12 from the second cavity 12 through the first connecting hole 13
  • a cavity 11 flows out of the throttling device through the first through hole 15 until the input of the refrigerant in the cooling mode is stopped, the pressure in the second cavity 12 drops, and the elastic force of the first valve body 21 on the first elastic member 3 Under the action, it gradually approaches the first connecting hole 13 and closes the first connecting hole 13.
  • This embodiment provides an air conditioner.
  • the air conditioner includes the adaptive throttling device described in any of the above embodiments, and the opening and closing of the throttling device is controlled by the control method of the sixth embodiment.

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  • Physics & Mathematics (AREA)
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  • General Engineering & Computer Science (AREA)
  • Temperature-Responsive Valves (AREA)
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Abstract

一种自适应节流装置及空调器，该自适应节流装置包括：壳体（1），壳体（1）内设有第一腔体（11）与第二腔体（12），通过第一连接孔（13）与第二连接孔（14）连通，壳体（1）上设有第一通孔（15）与第二通孔（16），第一通孔（15）适于连通第一腔体（11）与管路（5），第二通孔（16）适于连通第二腔体（12）与管路（5）的另一端；阀体（2），阀体（2）包括第一阀体（21）与第二阀体（22），第一阀体（21）适于在第一腔体（11）内压力小于第二腔体（12）内压力时打开第一连接孔（13），第二阀体（22）适于在第一腔体（11）内压力大于第二腔体（12）内压力时打开第二连接孔（14）；该自适应节流装置及空调器，依靠压差来控制阀门的开启与关闭，冷媒可以双向流动，自适应的调节阀体开度情况结构简单，成本低。

Description

自适应节流装置及空调器
本申请要求于2019年1月18日提交的中国专利申请第201910046257.3的优先权，该中国专利申请的全文通过引用的方式结合于此以作为本申请的一部分。
技术领域
本公开实施例涉及一种自适应节流装置及空调器。
背景技术
已知技术中，空调器所采用的节流阀通常为毛细管加单向阀和电子膨胀阀装置，所产生的问题为：毛细管加单向阀这种装置在焊接时焊点过多，焊堵时有发生，做工复杂，生产效率低；电子膨胀阀节流使用局限性大，需借助电控进行阀步调节，而且成本高。
发明内容
有鉴于此，本公开实施例旨在提出一种自适应节流装置，以解决已知节流装置结构复杂，易发生焊堵，成本较高的问题。
为达到上述目的，本公开的技术方案是这样实现的：
一种自适应节流装置，包括：
壳体，壳体内设有第一腔体与第二腔体，所述第一腔体与所述第二腔体之间通过第一连接孔与第二连接孔连通，所述壳体上设有第一通孔与第二通孔，所述第一通孔适于连通所述第一腔体与管路相对于所述节流装置的一端，所述第二通孔适于连通所述第二腔体与所述管路相对于所述节流装置的另一端；
阀体，所述阀体包括第一阀体与第二阀体，所述第一阀体适于在所述第一腔体内压力大于所述第二腔体内压力时关闭所述第一连接孔，所述第一阀体适于在所述第一腔体内压力小于所述第二腔体内压力时打开所述第一连接孔，所述第二阀体适于在所述第一腔体内压力大于所述第二腔体内压力时打 开所述第二连接孔，所述第二阀体适于在所述第一腔体内压力小于所述第二腔体内压力时关闭所述第二连接孔。
进一步地，所述第一连接孔与所述第二连接孔为锥形通孔，所述第一连接孔口径较大的一端朝向所述第一腔体，所述第二连接孔口径较大的一端朝向所述第二腔体。
进一步地，所述第一阀体的形状与所述第一连接孔的形状相匹配，所述第二阀体的形状与所述第二连接孔的形状相匹配。
进一步地，所述第一阀体靠近所述第一腔体的一端与所述第一腔体的内壁之间设有第一弹性件，所述第二阀体靠近所述第二腔体的一端与所述第二腔体的内壁之间设有第二弹性件。
进一步地，所述第一弹性件与所述第二弹性件均包括弹簧，所述弹簧在无冷媒流通时处于原始状态或压缩状态。
进一步地，所述第一弹性件的外侧套有第一固定壳或内侧设置有第一固定柱，所述第二弹性件的外侧套有第二固定壳或内侧设置有第二固定柱。
进一步地，所述第一连接孔口径较小的一端通过第一穿孔与所述第二腔体连通，所述第二连接孔口径较小的一端通过第二穿孔与所述第一腔体连通；
所述第一阀体朝向所述第二腔体的一端设置有与所述第一穿孔形状相匹配的第一连接块，所述第二阀体朝向所述第一腔体的一端设置有与所述第二穿孔形状相匹配的第二连接块。
进一步地，所述第一穿孔为圆柱形或棱柱形，所述第二穿孔为圆柱形或棱柱形。
进一步地，所述第一通孔的轴线与所述第二连接孔的轴线重合，所述第二通孔的轴线与所述第一连接孔的轴线重合。
相对于已知技术，本公开实施例所述的自适应节流装置具有以下优势：
本公开实施例所述的自适应节流装置，运行过程中依靠压差来控制阀门的开启与关闭，冷媒可以双向流动，并且自适应的调节阀体开度情况进行节流，无需借助其他控制，结构简单，成本低；并可通过冷媒的流动对阀体进行冲击，便于实现阀体的快速开启。
本公开实施例的另一目的在于提出一种空调器，包括上述任一所述的自适应节流装置。
所述空调器与上述自适应节流装置相对于已知技术所具有的优势相同，在此不再赘述。
附图说明
构成本公开的一部分的附图用来提供对本公开的进一步理解，本发明的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：
图1为本发明实施例所述的自适应节流装置示意图；
图2为本发明实施例所述的制冷冷媒与制热冷媒流向示意图；
图3为本发明实施例所述的第一固定壳与第二固定壳示意图；
图4为本发明实施例所述的第一固定柱与第二固定柱示意图；
图5为图4中A处放大图。
附图标记说明：
1-壳体，11-第一腔体，12-第二腔体，13-第一连接孔，131-第一穿孔，14-第二连接孔，141-第二穿孔，15-第一通孔，16-第二通孔，2-阀体，21-第一阀体，211-第一连接块，22-第二阀体，221-第二连接块，3-第一弹性件，31-第一固定壳，32-第一固定柱，4-第二弹性件，41-第二固定壳，42-第二固定柱，5-管路，51-限位凸起。
具体实施方式
需要说明的是，在不冲突的情况下，本发明中的实施例及实施例中的特征可以相互组合。
下面将参考附图并结合实施例来详细说明本公开。
在本公开实施例的描述中，应当说明的是，各实施例中的术语名词例如“上”、“下”等指示方位的词语，只是为了简化描述基于说明书附图的位置关系，并不代表所指的元件和装置等必须按照说明书中特定的方位和限定的操作及方法、构造进行操作，该类方位名词不构成对本公开的限制。
另外，在本发明的实施例中所提到的术语“第一”、“第二”仅用于描述目的，并不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包 括一个或者更多个该特征。
实施例一
本实施例提供了一种自适应节流装置，结合图1所示，包括壳体1与阀体2，壳体1内设有第一腔体11与第二腔体12，第一腔体11与第二腔体12之间通过壳体1的中间连接部分割开，第一腔体11与第二腔体12之间通过第一连接孔13与第二连接孔14连通，第一连接孔13的形状与第二连接孔14的形状相同，壳体1的上端设有第一通孔15，第一通孔15连通第一腔体11与管路5相对于节流装置的一端，管路5上段内的制冷模式冷媒或制热模式冷媒可通过第一通孔15实现管路5与第一腔体11之间的流通，壳体1的下端设有第二通孔16，第二通孔16连通第二腔体11与管路5相对于节流装置的另一端，管路5下段内的制冷模式冷媒或制热模式冷媒可通过第二通孔16实现管路5与第二腔体12之间的流通。
阀体2包括第一阀体21与第二阀体22，若管路5上段有制热模式冷媒或制冷模式冷媒流入第一腔体11中，本实施例以管路5上段有制热模式冷媒流入，此时第一腔体11内的压力大于第二腔体12内压力，第一阀体21在压力的作用下与第一连接孔13的内壁紧密贴合，此时第一连接孔13处于关闭状态，第二阀体22在压力的作用下脱离第二连接孔14，此时第二连接孔14与第二阀体22之间形成间隙，第二连接孔14处于打开状态，此时制热模式冷媒通过第二连接孔14进入到第二腔体12中，再经过第二通孔16进入到管路5的下段；若管路5下段有制热模式冷媒或制冷模式冷媒流入第一腔体11中，本实施例以管路5下段有制冷模式冷媒流入，此时第二腔体12内的压力大于第一腔体11内的压力，第一阀体21在压力的作用下脱离第一连接孔13，此时第一连接孔13与第一阀体21之间形成间隙，第一连接孔13处于打开状态，第二阀体22在压力的作用下与第二连接孔14的内壁紧密贴合，第二连接孔14处于关闭状态，此时制冷模式冷媒通过第一连接孔13进入到第一腔体11中，再经过第一通孔15进入到管路5的上段。
本实施例所述的自适应节流装置，运行过程中依靠压差来控制阀门的开启与关闭，冷媒可以双向流动，并且自适应的调节阀体开度情况进行节流，无需借助其他控制，结构简单，成本低。
本实施例中，节流装置设置在管路5中，管路5的内壁上设有限位凸起 51，节流装置的上方与下方均设置有限位凸起51，本实施例中，限位凸起51为管路5向内挤压形成的凸块或凸环，限位凸起51可对节流装置起到限位以及密封的作用。
实施例二
本实施例在上述实施例的基础上，结合图1与图2所示，第一连接孔13与第二连接孔14均为锥形通孔，包括圆锥形或棱锥形等形状，较好地，第一连接孔13与第二连接孔14为圆锥形，第一连接孔13的尖端同样与第二腔体12连通，并朝向第二腔体12，即第一连接孔13口径较大的一端朝向第一腔体11，第一阀体21的形状与第一连接孔13的形状相同，第一阀体21的上端固定连接第一弹性件3，第一弹性件3能够在第一阀体21受向上的力时支撑第一阀体21，并在第一阀体21不受力时推动第一阀体21使第一阀体21与第一连接孔13相贴合，较好地，第一弹性件3为弹簧，本实施例中为压缩弹簧，第一弹性件3的上端与壳体1的上方内壁固定连接，在节流装置中第一腔体11与第二腔体12之间的压力差为零时，第一弹性件3为初始状态(无压缩与无伸长状态)或压缩状态，当第一弹性件3处于初始状态时，第一弹性件3的长度保证第一阀体21与第一连接孔13的内壁贴合，当第一弹性件3处于压缩状态时，第一阀体21在第一弹性件3的作用下与第一连接孔13的内壁紧密贴合，实现第一连接孔13的关闭；第二连接孔14的尖端同样与第一腔体11连通，并朝向第一腔体11，即第二连接孔14口径较大的一端朝向第一腔体11，第二阀体22的形状与第二连接孔14的形状相同，第二阀体22的下端固定连接第二弹性件4，第二弹性件4能够在第二阀体22受向下的力时支撑第二阀体22，并在第二阀体22不受力时推动第二阀体22使第二阀体22与第二连接孔14相贴合，较好地，第二弹性件4为弹簧，本实施例中为压缩弹簧，第二弹性件4的下端与壳体1的下方内壁固定连接，同样的，第二弹性件4为压缩弹簧，在节流装置中第一腔体11与第二腔体12之间的压力差为零时，第二弹性件4为初始状态(无压缩与无伸长状态)或压缩状态，当第二弹性件4处于初始状态时，第二弹性件4的长度保证第二阀体22与第二连接孔14的内壁贴合，当第二弹性件4处于压缩状态时，第二阀体22在第二弹性件4的作用下与第二连接孔14的内壁紧密贴合，实现第二连接孔14的关闭，防止制冷模式或制热模式的冷媒进入第一腔体11或第二腔 体12中时，第一连接孔13或第二连接孔14已经处于打开状态，而不会出现第一腔体11与第二腔体12之间的压力差，节流装置无法根据压力差实现连接孔的开启与关闭，压缩弹簧还可有效的对外载压力提供反抗力量，当压缩弹簧被压缩时，随着压缩程度的增大，其反抗力量越大，并最终达到平衡状态，防止在压差的作用下阀体远离连接孔，并且在冷媒停止流通时，在压缩弹簧的作用下阀体能快速与连接孔闭合，实现自适应节流装置的快速关闭，且使用压缩弹簧时结构简单，可根据实际需要选择不同弹力的压缩弹簧，性价比高。
本实施例中，仅以压缩弹簧为例，能够起到本实施例作用的其他装置或者其他方式的弹性件，如弹性橡胶、弹性金属片与弹性塑料片等，均在本申请的保护范围内。
本实施例中，第一通孔15的轴线与第二连接孔14的轴线重合，第二通孔16的轴线与第一连接孔13的轴线重合，本实施例将通孔的位置与连接孔的位置同线设置，使得冷媒刚进入腔体时，腔体内压力还未增大到平衡值时即可通过流动力对阀体进行冲击，便于实现阀体的快速开启。
实施例三
本实施例在上述实施例的基础上，结合图3所示，第一弹性件3的外侧设置有第一固定壳31，第一固定壳31环套在第一弹性件3的外侧，能够防止第一弹性件3发生左右晃动，以及能够在内部气流流通时影响第一弹性件3对第一阀体21的支撑，较好地，第一固定壳31为圆柱形中空贯穿的盒体，第一固定壳31的顶端与壳体1上方内壁固定连接，第一固定壳31的下方与第一阀体21之间留有间隙，防止第一固定壳31阻碍第一阀体21向上移动，也能够对第一弹性件3起限位作用，防止第一弹性件3在形变过程中向侧方弯曲；同样的，第二弹性件4的外侧设置有第二固定壳41，第二固定壳41环套在第二弹性件4的外侧，能够防止第二弹性件4发生左右晃动，以及能够在内部气流流通时影响第二弹性件4对第二阀体22的支撑，较好地，第二固定壳41同样为圆柱形中空贯穿盒体，第二固定壳41的底端与壳体1下方内壁固定连接，第二固定壳41的上方与第二阀体22之间留有间隙，防止第二固定壳41阻碍第二阀体22向下移动，也能够对第二弹性件4起限位作用，防止第二弹性件4在形变过程中向侧方弯曲。
本实施例中，较好地，第一固定壳31与第二固定壳41的侧壁上设置有通孔，便于媒体的流通，防止第一固定壳31与第二固定壳41对媒体介质的流通起阻碍作用。
实施例四
本实施例与上述实施例的不同在于，结合图4所示，第一弹性件3的内部设置有第一固定柱32，第一弹性件3环套在第一固定柱32上，第二弹性件4的内部设置有第二固定柱42，第二弹性件4环套在第二固定柱42上，同样的，第一固定柱32的上侧端与壳体1的上方内壁固定连接，第一固定柱32的下方与第一阀体21之间设置有间隙，防止第一固定柱32阻碍第一阀体21向上移动，同样能够对第一弹性件3起限位作用，防止第一弹性件3在形变过程中向侧方弯曲；同样的，第二固定柱42的下侧端与壳体1的下方内壁固定连接，第二固定柱42的上方与第二阀体22之间设置有间隙，防止第二固定柱42阻碍第二阀体22向下移动，能够对第二弹性件4起限位作用，防止第二弹性件4在形变过程中向侧方弯曲。
实施例五
本实施例在上述实施例的基础上，结合图5所示，第一连接孔13口径较小的一端通过圆柱形或棱柱形的第一穿孔131与第二腔体12相连通，第二连接孔14口径较小的一端通过圆柱形或棱柱形的第二穿孔141与第一腔体11连通，第一穿孔131位于第一连接孔13的下方，第二穿孔141位于第二连接孔14的上方，当为棱柱形时，可以为三棱柱、四棱柱等，可以为规则也可以为不规则形，较好地，为规则形状时更易于加工，也更加的美观，同样的，第一阀体21的形状与第一连接孔13的形状相同，第一阀体21的下方同样设置有与第一穿孔131形状相匹配的第一连接块211，第二阀体22的形状与第二连接孔14的形状相同，第二阀体22的上方设置有与第二穿孔141形状相匹配的第二连接块221。
本实施例中，第一连接块211与第二连接块221既能起到关闭第一连接孔13与第二连接孔14的作用，同时能够增大第一阀体21与第二阀体22与外界媒介接触的面积，使得压力更易驱动第一阀体21和第二阀体22，防止尖角状的阀体无法通过压力驱动而产生移动。
实施例六
本实施例在上述实施例的基础上，提供了自适应节流装置的控制方法，包括如下步骤：
当制热模式冷媒经由第一通孔15流入第一腔体11时，第一腔体11内的压力Fa大于第二腔体12内的压力Fb，在压力Fa及第一弹性件3的作用下，第一阀体21与第一连接孔13的内壁紧密贴合，第一连接孔13处于关闭状态，当第一腔体11内压力Fa逐渐增大并增大到压力Fa与压力Fb之差大于第二弹性件4的弹力时，第二阀体22逐渐远离第二连接孔14，第二阀体22与第二连接孔14之间产生缝隙，随着第二弹性件4被压缩，弹力逐渐增大，最终压力Fa与压力Fb之差与第二弹性件4的弹力达到平衡状态，第二连接孔14处于打开状态，所述制热模式冷媒通过第二连接孔14由所述第一腔体11流入所述第二腔体12，并经由第二通孔16流出所述节流装置，直至停止输入制热模式冷媒，第一腔体11内压力下降，第二阀体22在第二弹性件4的弹力作用下逐渐靠近第二连接孔14并关闭第二连接孔14；
当制冷模式冷媒经由第二通孔16流入第二腔体12时，第二腔体12内压力Fb大于第一腔体11内压力Fa，在压力Fb及第二弹性件4的作用下，第二阀体22与第二连接孔14的内壁紧密贴合，第二连接孔14处于关闭状态，当第二腔体12内压力Fb逐渐增大并增大到压力Fb与压力Fa之差大于第一弹性件3的弹力时，第一阀体21逐渐远离第一连接孔13，第一阀体21与第一连接孔13之间产生缝隙，随着第一弹性件3被压缩，弹力逐渐增大，最终压力Fb与压力Fa之差与第一弹性件3的弹力达到平衡状态，第一连接孔13处于打开状态，所述制冷模式冷媒通过第一连接孔13由第二腔体12流入第一腔体11，并经由所述第一通孔15流出所述节流装置，直至停止输入制冷模式冷媒，第二腔体12内压力下降，第一阀体21在第一弹性件3的弹力作用下逐渐靠近第一连接孔13并关闭第一连接孔13。
实施例七
本实施例提供了一种空调器，所述空调器包括上述任一实施例所述的自适应节流装置，并通过上述实施例六的控制方法控制节流装置的开启与关闭。
以上所述仅为本发明的一些实施例而已，并不用以限制本公开，凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。

Claims (10)

  1. 一种自适应节流装置，其中，包括：
    壳体(1)，壳体(1)内设有第一腔体(11)与第二腔体(12)，所述第一腔体(11)与所述第二腔体(12)之间通过第一连接孔(13)与第二连接孔(14)连通，所述壳体(1)上设有第一通孔(15)与第二通孔(16)，所述第一通孔(15)适于连通所述第一腔体(11)与管路(5)相对于所述节流装置的一端，所述第二通孔(16)适于连通所述第二腔体(12)与所述管路(5)相对于所述节流装置的另一端；
    阀体(2)，所述阀体(2)包括第一阀体(21)与第二阀体(22)，所述第一阀体(21)适于在所述第一腔体(11)内压力大于所述第二腔体(12)内压力时关闭所述第一连接孔(13)，所述第一阀体(21)适于在所述第一腔体(11)内压力小于所述第二腔体(12)内压力时打开所述第一连接孔(13)，所述第二阀体(22)适于在所述第一腔体(11)内压力大于所述第二腔体(12)内压力时打开所述第二连接孔(14)，所述第二阀体(22)适于在所述第一腔体(11)内压力小于所述第二腔体(12)内压力时关闭所述第二连接孔(14)。
  2. 根据权利要求1所述的自适应节流装置，其中，所述第一连接孔(13)与所述第二连接孔(14)为锥形通孔，所述第一连接孔(13)口径较大的一端朝向所述第一腔体(11)，所述第二连接孔(14)口径较大的一端朝向所述第二腔体(12)。
  3. 根据权利要求2所述的自适应节流装置，其中，所述第一阀体(21)的形状与所述第一连接孔(13)的形状相匹配，所述第二阀体(22)的形状与所述第二连接孔(14)的形状相匹配。
  4. 根据权利要求3所述的自适应节流装置，其中，所述第一阀体(21)靠近所述第一腔体(11)的一端与所述第一腔体(11)的内壁之间设有第一弹性件(3)，所述第二阀体(22)靠近所述第二腔体(12)的一端与所述第二腔体(12)的内壁之间设有第二弹性件(4)。
  5. 根据权利要求4所述的自适应节流装置，其中，所述第一弹性件(3)与所述第二弹性件(4)均包括弹簧，所述弹簧在无冷媒流通时处于原始状态或压缩状态。
  6. 根据权利要求4所述的自适应节流装置，其中，所述第一弹性件(3)的外侧套有第一固定壳(31)或内侧设置有第一固定柱(32)，所述第二弹性件(4)的外侧套有第二固定壳(41)或内侧设置有第二固定柱(42)。
  7. 根据权利要求1所述的自适应节流装置，其中，所述第一连接孔(13)口径较小的一端通过第一穿孔(131)与所述第二腔体(12)连通，所述第二连接孔(14)口径较小的一端通过第二穿孔(141)与所述第一腔体(11)连通；
    所述第一阀体(21)朝向所述第二腔体(12)的一端设置有与所述第一穿孔(131)形状相匹配的第一连接块(211)，所述第二阀体(22)朝向所述第一腔体(11)的一端设置有与所述第二穿孔(141)形状相匹配的第二连接块(221)。
  8. 根据权利要求7所述的自适应节流装置，其中，所述第一穿孔(131)为圆柱形或棱柱形，所述第二穿孔(141)为圆柱形或棱柱形。
  9. 根据权利要求1所述的自适应节流装置，其中，所述第一通孔(15)的轴线与所述第二连接孔(14)的轴线重合，所述第二通孔(16)的轴线与所述第一连接孔(13)的轴线重合。
  10. 一种空调器，其中，包括上述权利要求1-9任一所述的自适应节流装置。
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