WO2023116114A1 - 一种防泄漏快速接头及液冷系统 - Google Patents

一种防泄漏快速接头及液冷系统 Download PDF

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Publication number
WO2023116114A1
WO2023116114A1 PCT/CN2022/122439 CN2022122439W WO2023116114A1 WO 2023116114 A1 WO2023116114 A1 WO 2023116114A1 CN 2022122439 W CN2022122439 W CN 2022122439W WO 2023116114 A1 WO2023116114 A1 WO 2023116114A1
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Prior art keywords
quick connector
piston
piston body
leakage
unit
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PCT/CN2022/122439
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English (en)
French (fr)
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曲中江
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广东启扬科技有限公司
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Publication of WO2023116114A1 publication Critical patent/WO2023116114A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
    • F16L37/32—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied
    • 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

Definitions

  • the invention relates to the technical field of liquid cooling systems, in particular to an anti-leakage quick connector and a liquid cooling system.
  • the quick connector is an important part of the liquid cooling system. It plays the role of turning on and off the circuit to facilitate the installation and maintenance of the liquid cooling system.
  • the quick joints used in the current liquid cooling system are prone to leakage, especially when the diameter of impurity particles contained in the liquid in the liquid cooling system is greater than 100mm, the leakage is more likely to occur; because the large diameter impurity particles in the liquid are in the liquid cooling system Under the high pressure, it will affect the contact between the sealing ring in the quick joint and the shell of the quick joint, so that the liquid will easily leak from the gap between the sealing ring and the shell under the large internal pressure.
  • the above-mentioned first solution will affect the refrigeration efficiency of the liquid cooling system
  • the second solution requires regular maintenance, which reduces the refrigeration time of the liquid cooling system and also reduces the refrigeration efficiency of the liquid cooling system; that is, in the prior art
  • the quick connector can not prevent liquid leakage under the premise of ensuring refrigeration efficiency.
  • the purpose of the present invention is to provide an anti-leakage quick joint and a liquid cooling system to solve the problem that the quick joints in the prior art cannot prevent liquid leakage under the premise of ensuring refrigeration efficiency.
  • An anti-leakage quick connector comprising a housing unit, the housing unit is provided with a flow channel configured with an internal connection port and an external connection port;
  • the housing unit is sequentially slidably connected with a first piston unit and a second piston unit, and the first piston unit and the second piston unit connect the The flow channel is separated to form a first sealed cavity, a second sealed cavity and a communicating cavity; wherein, the second sealed cavity is sealed and connected to the first sealed cavity and the communicating cavity respectively;
  • the first piston unit and the second piston unit slide in a direction close to the internal connection port, the first sealed cavity, the second sealed cavity and the The communication cavity is connected.
  • the first piston unit includes a first piston body and a first sealing ring embedded on the first piston body;
  • the second piston unit includes a second piston body and a second sealing ring embedded on the second piston body;
  • a first wall surface capable of contacting the first sealing ring and a second wall surface capable of contacting the second sealing ring are formed on the wall surface of the flow channel.
  • a first guide post protrudes from a side of the first piston body close to the second piston body, and a first guide groove is opened in a position corresponding to the first guide post on the second piston body,
  • the first guide column is slidably sleeved in the first guide groove.
  • a first compression spring is sheathed on the first guide column, one end of the first compression spring is in contact with the first piston body, and the other end of the first compression spring is in contact with the first piston body.
  • the two piston bodies abut against each other.
  • the projection of the second piston body along the direction close to the first piston body completely falls into the first piston body
  • the diameter of the first wall is larger than the diameter of the second wall.
  • a fixing piece is embedded at the end of the housing unit away from the external connection port, the internal connection port is opened on the fixing piece, and the first piston unit slides with the fixing piece connect.
  • a second guide post protrudes from the side of the first piston body close to the fixing member, and a second guide groove is formed on the fixing member corresponding to the second guide post, and the second The guide column is slidably sleeved in the second guide groove.
  • the second guide groove is covered with a second compression spring, one end of the second compression spring is in contact with the first piston body, and the other end of the first compression spring is in contact with the fixing member. Abut.
  • a liquid cooling system includes the above-mentioned anti-leakage quick connector.
  • the number of the anti-leakage quick connectors is two, wherein the housing unit of one of the anti-leakage quick connectors is inserted into the housing unit of the other said anti-leakage quick connector, and two of the housings
  • the communicating cavities in the units communicate with each other.
  • the present invention has the following beneficial effects:
  • the anti-leakage quick joint and liquid cooling system provided by the present invention, when the anti-leakage quick joint is not connected with other components, the first piston unit and the second piston unit separate the flow channel to form a first sealed cavity and a second sealed cavity
  • the body and the communication cavity form a secondary leak-proof between the internal connection port and the external connection port; when the liquid in the first sealing cavity is low in liquid quality and the internal fluid pressure is too large
  • the fluid pressure will be significantly reduced, that is, the fluid pressure in the second sealed cavity is small, which significantly reduces the liquid pressure.
  • Fig. 1 is a schematic diagram of the first overall structure of the anti-leakage quick connector provided by the embodiment of the present invention
  • Fig. 2 is a second overall structural schematic diagram of the anti-leakage quick connector provided by the embodiment of the present invention.
  • Fig. 3 is a schematic diagram of the connection structure of the anti-leakage quick connector provided by the embodiment of the present invention.
  • Fig. 4 is a first structural schematic diagram of a second piston unit according to an embodiment of the present invention.
  • Fig. 5 is a schematic diagram of the second structure of the second piston unit according to the embodiment of the present invention.
  • the first piston unit 21.
  • the first piston body 22.
  • the first sealing ring 23.
  • Figure 1 is a schematic diagram of the first overall structure of the anti-leakage quick connector provided by the embodiment of the present invention
  • Figure 2 is a schematic diagram of the second overall structure of the anti-leakage quick connector provided by the embodiment of the present invention
  • Figure 3 A schematic diagram of the connection structure of the anti-leakage quick connector provided by the embodiment of the present invention
  • Fig. 4 is a schematic diagram of the first structure of the second piston unit of the embodiment of the present invention
  • Fig. 5 is a second structure of the second piston unit of the embodiment of the present invention schematic diagram.
  • the anti-leakage quick connector provided in this embodiment is applied in a liquid cooling system.
  • the liquid cooling system is mainly used on servers and communication cabinets. Among them, by improving the structure of the anti-leakage quick connector, it can ensure that the liquid cooling Under the premise of improving the cooling efficiency of the system, improve its sealing.
  • the anti-leakage quick connector of this embodiment includes a housing unit 10 , and a flow channel 11 configured with an internal connection port 12 and an external connection port 13 is opened in the housing unit 10 .
  • the internal connection port 12 communicates with the outlet or inlet of the flow path in the liquid cooling system, and the external connection port 13 can be connected to the external connection port 13 of other anti-leakage quick connectors or externally connected to other devices.
  • the housing unit 10 is sequentially slidably connected with a first piston unit 20 and a second piston unit 30, and the first piston unit 20 and the second piston unit 30 separate the flow channel 11 to form The first sealed cavity 14 , the second sealed cavity 15 and the communication cavity 16 .
  • the second sealed cavity 15 is sealed and connected with the first sealed cavity 14 and the communication cavity 16 respectively.
  • the first piston unit 20 and the second piston unit 30 slide in a direction close to the internal connection port 12 , and the first sealed cavity 14 , the second sealed cavity 15 communicate with the communication cavity 16 .
  • the first piston unit 20 and the second piston unit 30 will slide under the action of external force, such as the two second pistons in the two anti-leakage quick connectors in Figure 3
  • the units 30 abut against each other and slide towards their corresponding internal connection ports 12 , so that the first sealed cavity 14 , the second sealed cavity 15 and the communication cavity 16 communicate.
  • the first piston unit 20 and the second piston unit 30 separate the flow channel 11 to form the first sealed cavity 14, the second sealed cavity 15 and the communication cavity 16, Thereby forming secondary leak-proof between internal connection port 12 and external connection port 13;
  • the fluid pressure will be significantly reduced, that is, the fluid pressure in the second sealed cavity 15 is small, which significantly reduces the The risk of liquid leakage, thereby significantly improving the sealing reliability of the anti-leakage quick connector; in the above process, through the secondary leak-proof design, even if the diameter of the impurity particles of the liquid increases, it is difficult for the liquid to leak out of the anti-leakage quick connector Therefore, there is no need to reduce the flow rate of the liquid or replace it regularly, which ensures the refrigeration efficiency, that is, the anti-leakage quick connector and the liquid cooling system can prevent liquid leakage under the premise of ensuring the refrigeration efficiency
  • the first piston unit 20 includes a first piston body 21 and a first sealing ring 22 embedded on the first piston body 21 .
  • the second piston unit 30 includes a second piston body 31 and a second sealing ring 32 embedded on the second piston body 31 .
  • a first wall surface 111 capable of contacting the first sealing ring 22 and a second wall surface 112 capable of contacting the second sealing ring 32 are formed on the wall surface of the flow channel 11 .
  • the first piston unit 20 and the second piston unit 30 slide along the direction close to the internal connection port 12, so that there is a gap between the first sealing ring 22 and the first wall surface 111, and the second sealing ring 32
  • There is a gap between the second wall surface 112 so that the first sealed cavity 14 , the second sealed cavity 15 and the communication cavity 16 communicate with each other.
  • a first guide post 23 protrudes from the side of the first piston body 21 close to the second piston body 31, and a first guide groove is opened on the second piston body 31 corresponding to the position of the first guide post 23. 33 , the first guide column 23 is slidably sleeved in the first guide groove 33 .
  • the first piston body 21 is provided with a guide groove on the side close to the second piston body 31, and the second piston body 31 is provided with a guide post corresponding to the position of the guide groove, and the guide post is movably sleeved located in the guide groove.
  • first guide post 23 is sleeved with a first compression spring 40 , one end of the first compression spring 40 abuts against the first piston body 21 , and the other end of the first compression spring 40 abuts against the second piston body 31 .
  • first compression spring 40 serves to make the contact between the second sealing ring 32 and the second wall surface 112 more closely, so as to enhance the sealing performance when the housing unit 10 is not installed.
  • the projection of the second piston body 31 along the direction close to the first piston body 21 completely falls into the first piston body 21 .
  • the diameter of the first wall 111 is greater than the diameter of the second wall 112 .
  • the contact area between the first piston body 21 and the flow channel 11 is larger than that of the second piston body 31, when the fluid passes through the first piston unit 20, the pressure of the fluid can be further reduced, and when the fluid enters the second piston unit 20, the pressure of the fluid can be further reduced.
  • the housing unit 10 is embedded with a fixing piece 50 at an end away from the external connection port 13, the internal connection port 12 is opened on the fixing piece 50, and the first piston unit 20 is slidably connected to the fixing piece 50.
  • the side of the first piston body 21 close to the fixing piece 50 is protruded with a second guide post 24, and the fixing piece 50 is provided with a second guide groove 51 at a position corresponding to the second guide post 24.
  • the guide column 24 is slidably sleeved in the second guide slot 51 .
  • a guide groove is defined on the side of the first piston body 21 close to the fixing member 50 , and a guide post is provided at a position corresponding to the guide groove on the fixing member 50 , and the guide post is slidably sleeved in the guide groove.
  • the side of the first piston body 21 close to the second piston body 31 is protrudingly provided with a first guide post 23, and the second piston body 31 corresponds to the position of the first guide post 23.
  • a first guide groove 33 is opened at the position, and the first guide column 23 is slidably sleeved in the first guide groove 33;
  • the side of the first piston body 21 close to the fixing member 50 protrudes with a second guide column 24, and the fixing member 50 is provided with a second guide groove 51 corresponding to the position of the second guide column 24, and the second guide column 24 is slidably sleeved in the second guide groove 51; in particular, the guide columns are all arranged on the first piston body 21,
  • the overall quality of the first piston body 21 can be improved, which is beneficial to further reduce the pressure of the fluid passing through the first piston unit 20 , thereby preventing the fluid from flowing out of the second sealed cavity 15 .
  • the second guide groove 51 is covered with a second compression spring 60 , one end of the second compression spring 60 is in contact with the first piston body 21 , and the other end of the first compression spring 40 is in contact with the fixing member 50 .
  • the second compression spring 60 plays a role of sealing between the first seal ring 22 and the first wall surface 111 .
  • the leak-proof quick connector of this embodiment includes two types, one is a leak-proof male head as shown in Figure 1, and the other is a leak-proof female head as shown in Figure 2. Male plugs fit into leak-proof female plugs.
  • the difference between the leak-proof female head and the leak-proof male head is that the shell unit 10 of the leak-proof female head includes an inner shell 101 and an outer shell 102 sleeved outside the inner shell 101, and the inner shell 101 and the outer shell A third spring 19 is sleeved between 102, and the third spring 19 provides elastic force along the sliding direction of the piston unit for both the inner housing 101 and the outer housing 102, so that when the leak-proof male head and the leak-proof female head are connected
  • the respective housing units 10 can be tightly connected to each other; at the same time, for the leak-proof female head, a third sealing ring 17 is installed on the bottom wall of the communication cavity 16 to strengthen the connection between the leak-proof male head and the leak-proof female head.
  • a fourth sealing ring 18 is embedded in the inner shell 101, and the anti-leakage male head is provided with an installation groove corresponding to the fourth sealing ring 18.
  • the fourth sealing ring is partly engaged in the installation groove to improve the stability of the connection between the leak-proof male head and the leak-proof female head.
  • the anti-leakage quick connector provided in this embodiment can prevent liquid leakage under the premise of ensuring refrigeration efficiency, and also has the advantages of stable connection and high leak-proof level.
  • This embodiment provides a liquid cooling system including the anti-leakage quick connector as in Embodiment 1.
  • the specific structure and technical effects of the anti-leakage quick connector are described in the first embodiment, and the liquid cooling system of this embodiment uses the anti-leakage quick connector, which also has its technical effect.
  • the number of anti-leakage quick connectors is two, wherein the housing unit 10 of one anti-leakage quick connector is inserted into the housing unit 10 of the other anti-leakage quick connector, and the communicating cavities in the two housing units 10 16 interconnected. That is, as shown in FIG. 3 , the leak-proof male connector is inserted into the leak-proof female connector.
  • the anti-leakage male when the anti-leakage male is inserted into the anti-leakage female, one end of the anti-leakage male at the external connection port 13 extends into the external connection port 13 of the anti-leakage female, and the second piston of the anti-leakage male
  • the unit 30 abuts against the second piston unit 30 of the anti-leakage female head, so that the respective second piston units 30 overcome the elastic force of the first compression spring 40 and the second compression spring 60 and move in a direction close to the internal connection port 12, so that the anti-leakage
  • the second sealed cavity 15 of the leaking male head, the communicating cavity 16 of the leak-proof female head, the communicating cavity 16 of the leak-proof female head, and the second sealed cavity 15 of the leak-proof female head are connected in sequence; at the same time, the first piston The unit 30 also overcomes the elastic force of the second compression spring 60 and moves in a direction close to the internal connection port 12 under the action of the second piston unit 30, so that the first sealed cavity 15 communicates with the
  • Liquid can pass through the first sealed cavity 14 of the anti-leakage male head, the second sealed cavity 15 of the anti-leakage male head, the communication cavity 16 of the anti-leakage female head, the communication cavity 16 of the anti-leakage female head, and the anti-leakage female head.
  • the second sealed cavity 15 of the leak-proof female head and the first sealed cavity 14 of the leak-proof female head realize the communication between the internal connection port 12 of the leak-proof male head and the internal connection port 12 of the leak-proof female head.
  • the liquid cooling system provided by this embodiment can prevent liquid leakage under the premise of ensuring refrigeration efficiency, and also has the advantages of stable connection and high level of leakage prevention.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

一种防泄漏快速接头及包括该防泄漏快速接头的液冷系统，该防泄漏快速接头在防泄漏快速接头未与其他部件连接时，第一活塞单元(20)与第二活塞单元(30)将流道(11)分隔形成第一密封腔体(14)、第二密封腔体(15)及连通腔体(16)，从而在内部连接口(12)与外部连接口(13)之间形成二级防漏；当第一密封腔体(14)中的液体在液体质量低下且内部流体压力下过大的情况下从第一密封腔体(14)意外流出时，液体会流入至第二密封腔体(15)中，并且液体流经第一活塞单元(20)时，流体压力会显著降低，即第二密封腔体(15)中的流体压力较小，降低了液体泄漏的风险，从而提升了防泄漏快速接头的密封可靠性，因此使用时无需降低液体流速或定期更换，保证了制冷效率，该液冷系统能够在保证制冷效率的前提下防止液体泄漏。

Description

一种防泄漏快速接头及液冷系统
本申请要求于2021年12月21日提交中国专利局、申请号为202111575497.6、发明名称为“一种防泄漏快速接头及液冷系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及液冷系统技术领域，尤其涉及一种防泄漏快速接头及液冷系统。
背景技术
快速接头是液冷系统的重要部件，它起到接通和关断回路的作用，以方便对液冷系统进行安装和维护。
目前液冷系统所用的快速接头容易发生泄漏，特别是当液冷系统中的液体夹杂的杂质颗粒直径大于100mm时，漏液的情况更容易出现；因为液体中的大直径杂质颗粒在液冷系统的加压下，会影响快速接头内的密封圈与快速接头的壳体接触，从而在较大的内部压力下容易导致液体从密封圈与壳体之间的间隙泄漏。
当前，有两种原因会引起液体质量变差(体现于杂质颗粒直径变大)：1、当液体流速过大时，长时间地对管路表面的冲刷，容易导致金属和非金属颗粒的析出；2、接头受到外界的污染；对应地存在有两种解决方案：1、降低液体流速；2、定期更换液体。
然而上述的第一种解决方案会影响液冷系统的制冷效率，第二种解决方案需要定期维护，减少了液冷系统的制冷时间，同样降低了液冷系统的制冷效率；即现有技术中的快速接头不能在保证制冷效率的前提下防止液体泄漏。
发明内容
本发明的目的在于提供一种防泄漏快速接头及液冷系统，来解决目前现有技术中的快速接头不能在保证制冷效率的前提下防止液体泄漏的问题。
为达此目的，本发明采用以下技术方案：
一种防泄漏快速接头，包括壳体单元，所述壳体单元内开设有一配置 内部连接口及外部连接口的流道；
于所述内部连接口至所述外部连接口之间，所述壳体单元依次滑动连接有第一活塞单元和第二活塞单元，所述第一活塞单元和所述第二活塞单元将所述流道分隔形成第一密封腔体、第二密封腔体和连通腔体；其中，所述第二密封腔体分别与所述第一密封腔体及所述连通腔体密封连接；
当所述壳体单元安装时，所述第一活塞单元和所述第二活塞单元沿靠近所述内部连接口的方向滑动，所述第一密封腔体、所述第二密封腔体和所述连通腔体连通。
可选地，所述第一活塞单元包括第一活塞本体和嵌设于所述第一活塞本体上的第一密封圈；
所述第二活塞单元包括第二活塞本体和嵌设于所述第二活塞本体上的第二密封圈；
所述流道的壁面上形成有能与所述第一密封圈抵接的第一壁面和能与所述第二密封圈抵接的第二壁面。
可选地，所述第一活塞本体靠近所述第二活塞本体的一侧凸设有第一导向柱，所述第二活塞本体对应所述第一导向柱的位置开设有第一导向槽，所述第一导向柱可滑动地套设于所述第一导向槽内。
可选地，所述第一导向柱上套设有第一压簧，所述第一压簧的一端与所述第一活塞本体抵接，所述第一压簧的另一端与所述第二活塞本体抵接。
可选地，所述第二活塞本体沿靠近所述第一活塞本体的方向的投影完全落入所述第一活塞本体中；
所述第一壁面的直径大于所述第二壁面的直径。
可选地，所述壳体单元于远离所述外部连接口的一端嵌设有一固定件，所述内部连接口开设于所述固定件上，且所述第一活塞单元与所述固定件滑动连接。
可选地，所述第一活塞本体靠近所述固定件的一侧凸设有第二导向柱，所述固定件对应所述第二导向柱的位置开设有第二导向槽，所述第二导向柱可滑动地套设于所述第二导向槽内。
可选地，所述第二导向槽外套设有第二压簧，所述第二压簧的一端与 所述第一活塞本体抵接，所述第一压簧的另一端与所述固定件抵接。
一种液冷系统，包括如上所述的防泄漏快速接头。
可选地，所述防泄漏快速接头的数量为两个，其中一个所述防泄漏快速接头的壳体单元插入另一个所述防泄漏快速接头的壳体单元内，且两个所述壳体单元内的连通腔体相互连通。
与现有技术相比，本发明具有以下有益效果：
本发明提供的防泄漏快速接头及液冷系统，其在防泄漏快速接头未与其他部件连接时，第一活塞单元与第二活塞单元将流道分隔形成第一密封腔体、第二密封腔体及连通腔体，从而在内部连接口与外部连接口之间形成二级防漏；当第一密封腔体中的液体在液体质量低下且内部流体压力下过大的情况下从第一密封腔体意外流出时，液体会流入至第二密封腔体中，并且液体流经第一活塞单元时，流体压力会显著降低，即第二密封腔体中的流体压力较小，显著降低了液体泄漏的风险，从而显著提升了防泄漏快速接头的密封可靠性；在上述的过程中，通过二级防漏的设计，即使液体的杂质颗粒直径增加，液体也难以泄漏至防泄漏快速接头外，因此，无需降低液体流速或定期更换，保证了制冷效率，即本防泄漏快速接头及液冷系统能够在保证制冷效率的前提下防止液体泄漏。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其它的附图。
本说明书附图所绘示的结构、比例、大小等，均仅用以配合说明书所揭示的内容，以供熟悉此技术的人士了解与阅读，并非用以限定本发明可实施的限定条件，故不具技术上的实质意义，任何结构的修饰、比例关系的改变或大小的调整，在不影响本发明所能产生的功效及所能达成的目的下，均应仍落在本发明所揭示的技术内容得能涵盖的范围内。
图1为本发明实施例提供的防泄漏快速接头的第一整体结构示意图；
图2为本发明实施例提供的防泄漏快速接头的第二整体结构示意图；
图3为本发明实施例提供的防泄漏快速接头的连接结构示意图；
图4为本发明实施例的第二活塞单元的第一结构示意图；
图5为本发明实施例的第二活塞单元的第二结构示意图。
图示说明：10、壳体单元；101、内侧壳体；102、外侧壳体；11、流道；111、第一壁面；112、第二壁面；12、内部连接口；13、外部连接口；14、第一密封腔体；15、第二密封腔体；16、连通腔体；17、第三密封圈；18、第四密封圈；19、第三弹簧；
20、第一活塞单元；21、第一活塞本体；22、第一密封圈；23、第一导向柱；24、第二导向柱；30、第二活塞单元；31、第二活塞本体；32、第二密封圈；33、第一导向槽；40、第一压簧；50、固定件；51、第二导向槽；60、第二压簧。
具体实施方式
为使得本发明的发明目的、特征、优点能够更加的明显和易懂，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，下面所描述的实施例仅仅是本发明一部分实施例，而非全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
在本发明的描述中，需要理解的是，术语“上”、“下”、“顶”、“底”、“内”、“外”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，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。需要说明的是，当一个组件被认为是“连接”另一个组件，它可以是直接连接到另一个组件或者可能同时存在居中设置的组件。
下面结合附图并通过具体实施方式来进一步说明本发明的技术方案。
请参考图1至图5，图1为本发明实施例提供的防泄漏快速接头的第一整体结构示意图，图2为本发明实施例提供的防泄漏快速接头的第二整体结构示意图，图3为本发明实施例提供的防泄漏快速接头的连接结构示意图，图4为本发明实施例的第二活塞单元的第一结构示意图，图5为本 发明实施例的第二活塞单元的第二结构示意图。
实施例一
本实施例提供的防泄漏快速接头，应用于液冷系统中，该液冷系统主要用于服务器、通信机柜上，其中，通过对防泄漏快速接头的结构进行改进，使其能够在保证液冷系统的制冷效率的前提下，提高其密封性。
如图1和图2所示，本实施例的防泄漏快速接头包括壳体单元10，壳体单元10内开设有一配置内部连接口12及外部连接口13的流道11。其中，内部连接口12与液冷系统中的流路出口或流路入口连通，而外部连接口13能够连接其他防泄漏快速接头的外部连接口13或外接至其他设备。
于内部连接口12至外部连接口13之间，壳体单元10依次滑动连接有第一活塞单元20和第二活塞单元30，第一活塞单元20和第二活塞单元30将流道11分隔形成第一密封腔体14、第二密封腔体15和连通腔体16。其中，第二密封腔体15分别与第一密封腔体14及连通腔体16密封连接。
当壳体单元10安装时，第一活塞单元20和第二活塞单元30沿靠近内部连接口12的方向滑动，第一密封腔体14、第二密封腔体15和连通腔体16连通。其中，需要说明的是，当壳体单元10安装时，第一活塞单元20和第二活塞单元30会在外力作用下滑动，例如图3中两个防泄漏快速接头中的两个第二活塞单元30相互抵接各自向其对应的内部连接口12的方向滑动，使得第一密封腔体14、第二密封腔体15和连通腔体16连通。
具体地，防泄漏快速接头未与其他部件连接时，第一活塞单元20与第二活塞单元30将流道11分隔形成第一密封腔体14、第二密封腔体15及连通腔体16，从而在内部连接口12与外部连接口13之间形成二级防漏；当第一密封腔体14中的液体在液体质量低下且内部流体压力下过大的情况下从第一密封腔体14意外流出时，液体会流入至第二密封腔体15中，并且液体流经第一活塞单元20时，流体压力会显著降低，即第二密封腔体15中的流体压力较小，显著降低了液体泄漏的风险，从而显著提升了防泄漏快速接头的密封可靠性；在上述的过程中，通过二级防漏的设计，即使液体的杂质颗粒直径增加，液体也难以泄漏至防泄漏快速接头外，因此，无需降低液体流速或定期更换，保证了制冷效率，即本防泄漏快速接头及 液冷系统能够在保证制冷效率的前提下防止液体泄漏。
进一步地，如图2至图5所示，第一活塞单元20包括第一活塞本体21和嵌设于第一活塞本体21上的第一密封圈22。
第二活塞单元30包括第二活塞本体31和嵌设于第二活塞本体31上的第二密封圈32。
流道11的壁面上形成有能与第一密封圈22抵接的第一壁面111和能与第二密封圈32抵接的第二壁面112。当壳体单元10安装时，第一活塞单元20和第二活塞单元30沿靠近内部连接口12的方向滑动，从而第一密封圈22与第一壁面111之间出现间隙，第二密封圈32与第二壁面112之间出现间隙，使得使得第一密封腔体14、第二密封腔体15和连通腔体16连通。
在一个具体的实施方式中，第一活塞本体21靠近第二活塞本体31的一侧凸设有第一导向柱23，第二活塞本体31对应第一导向柱23的位置开设有第一导向槽33，第一导向柱23可滑动地套设于第一导向槽33内。
在其他可选的实施方式中，第一活塞本体21靠近第二活塞本体31的一侧开设有导向槽，第二活塞本体31对应导向槽的位置凸设有导向柱，导向柱可活动地套设在导向槽内。
进一步地，第一导向柱23上套设有第一压簧40，第一压簧40的一端与第一活塞本体21抵接，第一压簧40的另一端与第二活塞本体31抵接。其中，第一压簧40起到令第二密封圈32与第二壁面112的接触更加紧密，从而加强在壳体单元10未安装时的密封性。
在一个具体的实施方式中，第二活塞本体31沿靠近第一活塞本体21的方向的投影完全落入第一活塞本体21中。第一壁面111的直径大于第二壁面112的直径。其中，需要说明的是，第一活塞本体21较第二活塞本体31与流道11的接触面积更大，当流体经过第一活塞单元20时，流体的压力能进一步减少，而当流体进入第二密封腔体15后，由于第二活塞本体31与流道11的接触面积小，更难从第二密封腔体15中流出，从而整体地提高了防泄漏快速接头的密封性。
进一步地，壳体单元10于远离外部连接口13的一端嵌设有一固定件 50，内部连接口12开设于固定件50上，且第一活塞单元20与固定件50滑动连接。
在一个具体的实施方式中，第一活塞本体21靠近固定件50的一侧凸设有第二导向柱24，固定件50对应第二导向柱24的位置开设有第二导向槽51，第二导向柱24可滑动地套设于第二导向槽51内。
在另一个具体的实施方式中，第一活塞本体21靠近固定件50的一侧开设有导向槽，固定件50对应导向槽的位置开设导向柱，导向柱可滑动地套设于导向槽内。
其中，需要说明的是，在一个具体的实施方式中，第一活塞本体21靠近第二活塞本体31的一侧凸设有第一导向柱23，第二活塞本体31对应第一导向柱23的位置开设有第一导向槽33，第一导向柱23可滑动地套设于第一导向槽33内；第一活塞本体21靠近固定件50的一侧凸设有第二导向柱24，固定件50对应第二导向柱24的位置开设有第二导向槽51，第二导向柱24可滑动地套设于第二导向槽51内；特别地，导向柱均设置在第一活塞本体21上，能够提高第一活塞本体21的整体质量，有利于进一步减少流体经过第一活塞单元20时的压力，从而防止流体从第二密封腔体15中流出。
进一步地，第二导向槽51外套设有第二压簧60，第二压簧60的一端与第一活塞本体21抵接，第一压簧40的另一端与固定件50抵接。其中，第二压簧60起到令第一密封圈22与第一壁面111之间的密封性的作用。
在上述实施例的基础上，本实施例的防泄漏快速接头包括两种，一种如图1所示为防泄漏公头，另一种如图2所示为防泄漏母头，该防泄漏公头能插入防泄漏母头中。防泄漏母头与防泄漏公头的区别在于，防泄漏母头的壳体单元10包括内侧壳体101和套设在内侧壳体101外的外侧壳体102，内侧壳体101与外侧壳体102之间套设有第三弹簧19，该第三弹簧19为内侧壳体101与外侧壳体102两者提供沿活塞单元滑动方向的弹性力，使得防泄漏公头与防泄漏母头连接时各自壳体单元10能够相互紧密连接；同时，对于防泄漏母头而言，其连通腔体16的底壁还安装有一第三密封圈17，加强防泄漏公头与防泄漏母头连接时的密封性；内侧壳体101中 嵌设有一第四密封圈18，且防泄漏公头对应该第四密封圈18开设有安装槽，当防泄漏公头与防泄漏母头连接时，第四密封圈18部分卡合于安装槽内，提高防泄漏公头与防泄漏母头连接的稳定性。
综上所述，本实施例提供的防泄漏快速接头能够在保证制冷效率的前提下防止液体泄漏，并且还具有连接稳定、防漏等级高等优点。
实施例二
本实施例提供了一种液冷系统包括如实施例一中的防泄漏快速接头。实施例一中叙述了关于防泄漏快速接头的具体结构及技术效果，本实施例的液冷系统引用了该防泄漏快速接头，同样具有其技术效果。
具体地，防泄漏快速接头的数量为两个，其中一个防泄漏快速接头的壳体单元10插入另一个防泄漏快速接头的壳体单元10内，且两个壳体单元10内的连通腔体16相互连通。即如图3所示，防泄漏公头插入防泄漏母头中。
示例性的，当防泄漏公头插入防泄漏母头的过程中，防泄漏公头于外部连接口13的一端伸入防泄漏母头的外部连接口13内，防泄漏公头的第二活塞单元30与防泄漏母头的第二活塞单元30相抵接，使得各自的第二活塞单元30克服第一压簧40及第二压簧60的弹力沿靠近内部连接口12的方向移动，使得防泄漏公头的第二密封腔体15、防泄漏母头的连通腔体16、防泄漏母头的连通腔体16、防泄漏母头的第二密封腔体15依次连通；同时，第一活塞单元30也在第二活塞单元30的作用下克服第二压簧60的弹力沿靠近内部连接口12的方向移动，使得第一密封腔体15连通内部连接12与第二密封腔体16，此时液体能依次经过防泄漏公头的第一密封腔体14、防泄漏公头的第二密封腔体15、防泄漏母头的连通腔体16、防泄漏母头的连通腔体16、防泄漏母头的第二密封腔体15、防泄漏母头的第一密封腔体14，实现防泄漏公头的内部连接口12至防泄漏母头的内部连接口12的连通。
综上所述，本实施例提供的液冷系统能够在保证制冷效率的前提下防止液体泄漏，并且还具有连接稳定、防漏等级高等优点。
以上所述，以上实施例仅用以说明本发明的技术方案，而非对其限制； 尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (10)

  1. 一种防泄漏快速接头，其特征在于，包括壳体单元(10)，所述壳体单元(10)内开设有一配置内部连接口(12)及外部连接口(13)的流道(11)；
    于所述内部连接口(12)至所述外部连接口(13)之间，所述壳体单元(10)依次滑动连接有第一活塞单元(20)和第二活塞单元(30)，所述第一活塞单元(20)和所述第二活塞单元(30)将所述流道(11)分隔形成第一密封腔体(14)、第二密封腔体(15)和连通腔体(16)；其中，所述第二密封腔体(15)分别与所述第一密封腔体(14)及所述连通腔体(16)密封连接；
    当所述壳体单元(10)安装时，所述第一活塞单元(20)和所述第二活塞单元(30)沿靠近所述内部连接口(12)的方向滑动，所述第一密封腔体(14)、所述第二密封腔体(15)和所述连通腔体(16)连通。
  2. 根据权利要求1所述的防泄漏快速接头，其特征在于，所述第一活塞单元(20)包括第一活塞本体(21)和嵌设于所述第一活塞本体(21)上的第一密封圈(22)；
    所述第二活塞单元(30)包括第二活塞本体(31)和嵌设于所述第二活塞本体(31)上的第二密封圈(32)；
    所述流道(11)的壁面上形成有能与所述第一密封圈(22)抵接的第一壁面(111)和能与所述第二密封圈(32)抵接的第二壁面(112)。
  3. 根据权利要求2所述的防泄漏快速接头，其特征在于，所述第一活塞本体(21)靠近所述第二活塞本体(31)的一侧凸设有第一导向柱(23)，所述第二活塞本体(31)对应所述第一导向柱(23)的位置开设有第一导向槽(33)，所述第一导向柱(23)可滑动地套设于所述第一导向槽(33)内。
  4. 根据权利要求3所述的防泄漏快速接头，其特征在于，所述第一导向柱(23)上套设有第一压簧(40)，所述第一压簧(40)的一端与所述第一活塞本体(21)抵接，所述第一压簧(40)的另一端与所述第二活塞本体(31)抵接。
  5. 根据权利要求2所述的防泄漏快速接头，其特征在于，所述第二活塞本体(31)沿靠近所述第一活塞本体(21)的方向的投影完全落入所述第一活塞本体(21)中；
    所述第一壁面(111)的直径大于所述第二壁面(112)的直径。
  6. 根据权利要求2所述的防泄漏快速接头，其特征在于，所述壳体单元(10)于远离所述外部连接口(13)的一端嵌设有一固定件(50)，所述内部连接口(12)开设于所述固定件(50)上，且所述第一活塞单元(20)与所述固定件(50)滑动连接。
  7. 根据权利要求6所述的防泄漏快速接头，其特征在于，所述第一活塞本体(21)靠近所述固定件(50)的一侧凸设有第二导向柱(24)，所述固定件(50)对应所述第二导向柱(24)的位置开设有第二导向槽(51)，所述第二导向柱(24)可滑动地套设于所述第二导向槽(51)内。
  8. 根据权利要求7所述的防泄漏快速接头，其特征在于，所述第二导向槽(51)外套设有第二压簧(60)，所述第二压簧(60)的一端与所述第一活塞本体(21)抵接，所述第一压簧(40)的另一端与所述固定件(50)抵接。
  9. 一种液冷系统，其特征在于，包括如权利要求1-8中任一项所述的防泄漏快速接头。
  10. 根据权利要求9所述的液冷系统，其特征在于，所述防泄漏快速接头的数量为两个，其中一个所述防泄漏快速接头的壳体单元(10)插入另一个所述防泄漏快速接头的壳体单元(10)内，且两个所述壳体单元(10)内的连通腔体(16)相互连通。
PCT/CN2022/122439 2021-12-21 2022-09-29 一种防泄漏快速接头及液冷系统 WO2023116114A1 (zh)

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CN203023703U (zh) * 2012-11-19 2013-06-26 泉州丰源机械有限公司 一种改进型耐高压气动快速接头
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