WO2023280261A1 - 三通管及使用该三通管的空调系统 - Google Patents

三通管及使用该三通管的空调系统 Download PDF

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Publication number
WO2023280261A1
WO2023280261A1 PCT/CN2022/104309 CN2022104309W WO2023280261A1 WO 2023280261 A1 WO2023280261 A1 WO 2023280261A1 CN 2022104309 W CN2022104309 W CN 2022104309W WO 2023280261 A1 WO2023280261 A1 WO 2023280261A1
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WIPO (PCT)
Prior art keywords
interface
tee
connecting piece
inner diameter
connector
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Ceased
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PCT/CN2022/104309
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English (en)
French (fr)
Inventor
李书求
王文杰
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Zhejiang Dunan Artificial Environment Co Ltd
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Zhejiang Dunan Artificial Environment Co Ltd
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Application filed by Zhejiang Dunan Artificial Environment Co Ltd filed Critical Zhejiang Dunan Artificial Environment Co Ltd
Priority to JP2023577891A priority Critical patent/JP7762738B2/ja
Priority to KR1020247003112A priority patent/KR20240025015A/ko
Publication of WO2023280261A1 publication Critical patent/WO2023280261A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F16L13/00—Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints
    • F16L13/02—Welded joints
    • 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
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/02—Branch units, e.g. made in one piece, welded, riveted
    • 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

Definitions

  • the present application relates to the technical field of air conditioning, in particular to a three-way pipe and an air-conditioning system using the three-way pipe.
  • tee pipes are widely used.
  • the heat exchange tubes of general air conditioners mostly use copper tee pipes, but the strength of copper tee pipes is low. Due to the limitation of processing technology, there will be stress concentration at the corners where the cross-sectional shape of copper tee pipes changes sharply, and this The wall thickness will be thinned, making the copper tee pipe easily damaged under the impact of fluid.
  • tee pipes in some large-scale air-conditioning equipment involve the connection of pipe fittings of two different materials, but the welding of dissimilar metals is generally more complicated, which makes the production cost higher.
  • a tee pipe and an air conditioning system using the tee pipe are provided.
  • a tee pipe includes a tee body and a connecting piece.
  • the tee body is connected to the external pipeline through the connecting piece;
  • the tee body is a stainless steel tee, and
  • the connecting piece is a copper pipe or an aluminum pipe.
  • one end of the connecting piece connected to the tee body is provided with a positioning portion matching the tee body in the radial direction, and the other end is connected to an external pipeline, and the positioning portion is used for To limit the connection length between the connecting piece and the tee body.
  • the connecting piece is plugged into the tee body, and the positioning part is a necking section formed by shrinking the connecting piece in the radial direction; or, the connecting piece is sleeved on the The three-way body, and the positioning part is a flared section formed by radially expanding the connecting piece.
  • the tee body includes a first interface, a second interface, and a third interface, and the second interface and the third interface are coaxially arranged;
  • the connector includes a first connector, The second connecting piece and the third connecting piece, the first interface, the second interface and the third interface are respectively connected to the first connecting piece, the second connecting piece and the third connecting piece.
  • connection between the first interface and the second interface and/or the connection between the first interface and the third interface is provided with a connection part, and the connection part is The connection part of the fillet transition.
  • the first interface and the first connecting piece are connected by welding; and/or, the second interface and the second connecting piece are connected by welding; and/or, the first The three interfaces are connected to the third connecting piece by welding.
  • the inner diameter of the first connector is greater than or equal to the inner diameter of the first interface; and/or, the inner diameter of the second connector is greater than or equal to the inner diameter of the second interface; and /or, the inner diameter of the third connecting piece is greater than or equal to the inner diameter of the third interface.
  • the present application also provides an air-conditioning system, the air-conditioning system comprising the tee pipe described in any one of the above.
  • Fig. 1 is a schematic structural diagram of a tee pipe according to one or more embodiments of the present application.
  • Fig. 2 is a structural schematic diagram of the tee body in the tee pipe shown in Fig. 1 .
  • Fig. 3 is a schematic structural diagram of a tee pipe according to one or more embodiments.
  • Fig. 4 is a partially enlarged schematic diagram at A of the tee pipe shown in Fig. 3 .
  • FIG. 5 is a schematic diagram of a tee pipe and an air conditioning system including the tee pipe according to one or more embodiments.
  • Tee pipe 100.
  • Tee body 10.
  • Connecting part; 20. Connecting piece; 21. First connecting piece; 22.
  • a component when a component is said to be “mounted on” another component, it can be directly on the other component or there can also be an intervening component.
  • a component When a component is said to be “set on” another component, it may be set directly on the other component or there may be an intervening component at the same time.
  • a component When a component is said to be “fixed” to another component, it may be directly fixed to the other component or there may be an intervening component at the same time.
  • the terms “vertical,” “horizontal,” “left,” “right,” and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.
  • FIG. 1 is a schematic structural diagram of the tee pipe 100 provided by the present application
  • FIG. 2 is a schematic structural diagram of the tee body 10 shown in FIG. 1 .
  • the present application provides a tee pipe 100, which is mainly used for connecting with external pipelines, and is widely used in the field of refrigeration, and is an extremely important part. It can be understood that the tee pipe 100 can also be used in other pipelines.
  • the tee pipe 100 includes a tee body 10 and a connecting piece 20 .
  • the tee body 10 is connected to the external pipeline through the connecting piece 20 .
  • the tee body 10 is used to communicate with an external pipeline, for example, a heat exchange pipeline in an air-conditioning system.
  • the connecting piece 20 is used to connect the interface of the tee body 10 to an external pipeline.
  • tee pipes are widely used.
  • the heat exchange tubes of general air conditioners mostly use copper tee pipes, but the strength of copper tee pipes is low. Due to the limitation of processing technology, there will be stress concentration at the corners where the cross-sectional shape of copper tee pipes changes sharply, and this The wall thickness will be thinned, making the copper tee pipe easily damaged under the impact of fluid.
  • tee pipes in some large-scale air-conditioning equipment involve the connection of pipe fittings of two different materials, but the welding of dissimilar metals is generally more complicated, which makes the production cost higher.
  • the tee body 10 is a stainless steel tee with greater strength, and the cost of the stainless steel tee is lower than that of the copper tee.
  • the connector 20 is a copper tube or an aluminum tube, which can facilitate the connection with the external pipeline, especially the copper tube, aluminum tube or other pipelines in the air conditioning system, effectively reducing the direct contact between the stainless steel tee and the external pipeline.
  • the difficulty of connection especially reduces the difficulty of repairing the tee pipe inside the air conditioner after the tee pipe is damaged.
  • the cross-section of the tee body 10 is substantially "T"-shaped.
  • the three-way body 10 is mainly used for connecting external pipelines and changing the direction of fluid.
  • the tee body 10 includes a first interface 11 , a second interface 12 and a third interface 13 for connecting with the connector 20 .
  • the first interface 11 , the second interface 12 and the third interface 13 are all hollow structures, and the second interface 12 and the third interface 13 are coaxially arranged.
  • the three-way body 10 may be of other structures, such as the three-way body 10 with a “Y”-shaped cross section, as long as the three interfaces can communicate with each other.
  • the second interface 12 and the third interface 13 can also be arranged on different axes, as long as they can meet the requirements of the processing technology and facilitate the flow of fluid.
  • first interface 11 is arranged on the pipe section between the second interface 12 and the third interface 13 .
  • pipe section between the second interface 12 and the third interface 13 extends radially to form the first interface 11 through the flanging process.
  • the length of the outward protrusion should be controlled within a certain range, so that the connection with the first connecting member 21 is convenient. should.
  • the inner diameter of the first interface 11 should not be too large due to the limitation of the setting position, structure and flanging process.
  • Such setting can not only effectively avoid the phenomenon of too small wall thickness or even cracking when processing the first interface 11 , improve the product quality of the tee body 10 , but also effectively avoid the current limiting phenomenon when the tee pipe 100 is used.
  • the tee body 10 further includes a connecting portion 14 disposed between the first port 11 and the second port 12; and/or, a connecting portion 14 between the first port 11 and the third port 13 .
  • the connecting portion 14 adopts relatively large fillet transition and uniform wall thickness, and the connecting portion 14 is used for smooth transition between the first interface 11 and the second interface 12; and/or, the connecting portion 14 is used for connecting the first interface 11 and the second interface 12 There is a smooth transition between the third interfaces 13 .
  • the overall structure of the three-way pipe 100 does not have a sharp change in shape, which effectively reduces the stress concentration of the connecting part 14, so that when the three-way pipe 100 changes the direction of the fluid, the connecting part 14 will not be easily affected by the impact of the fluid. Therefore, the three-way pipe 100 needs to be replaced in advance, and the three-way pipe 100 is also easier to process.
  • the connecting piece 20 includes a first connecting piece 21 , a second connecting piece 22 and a third connecting piece 23 for connecting the tee body 10 with an external pipeline.
  • the first connecting piece 21, the second connecting piece 22 and the third connecting piece 23 are all hollow structures, and the first connecting piece 21 is connected to the first interface 11, the second connecting piece 22 is connected to the second interface 12 and the third connecting piece
  • the component 23 is connected with the third interface 13 .
  • the cross-sectional shape of the connecting piece 20 should be approximately the same as that of the interface of the tee body 10, so as to reduce the connection between the first interface 11 and the first connecting piece 21 and the connection between the second interface 12 and the second connecting piece 22. connection and the difficulty of connecting the third interface 13 to the third connecting member 23 .
  • the inner diameter of the first connecting part 21 is greater than or equal to the inner diameter of the first interface 11 on the tee body 10;
  • the inner diameter of the second interface 12 ; and/or, the inner diameter of the third connecting member 23 is greater than or equal to the inner diameter of the third interface 13 on the tee body 10 .
  • FIG. 3 is a schematic structural diagram of the tee pipe in another embodiment of the present application
  • FIG. 4 is a partially enlarged schematic diagram of the tee pipe shown in FIG. 3 at point A.
  • Another embodiment of the tee pipe 100 is substantially the same in structure as the tee pipe 100 in the above-mentioned embodiment, and the main improvement is that: one end of the connecting piece 20a connected to the tee body 10 is provided with a radial direction matching with the tee body 10.
  • the other end of the positioning part 24a is connected to the external pipeline, for example, the other end of the positioning part 24a is connected to the original copper pipe, aluminum pipe or other pipelines in the air conditioning system.
  • the connecting piece 20a is plugged into the tee body 10, and the positioning portion 24a is a shrinkage section formed by shrinking the connecting piece 20a in the radial direction, and the outer end surfaces of the first interface 11, the second interface 12 and the third interface 13 Respectively contact with the stepped surface on the necking section of the first connecting piece 21a, the second connecting piece 22a and the third connecting piece 23a; or, the connecting piece 20a is sleeved on the tee body 10, and the positioning part 24a is the connecting piece 20a In the radially expanded and formed flaring section, the outer end surfaces of the first interface 11, the second interface 12, and the third interface 13 are respectively flared with the first connecting piece 21a, the second connecting piece 22a, and the third connecting piece 23a.
  • the main function of the positioning part 24a is to locate so that the connecting piece 20a is connected to the tee body 10, and to limit the connection length of the connecting piece 20a and the tee body 10; if the length is small, the tee body 10 after the connection cannot be effectively guaranteed If the length is too large, the material of the connecting piece 20a will be wasted, which is not conducive to reducing production costs; therefore, reasonable control of the depth can better ensure that the connecting piece 20a and the tee The connection strength and airtightness of the interface of the body 10 and the production cost of the tee pipe 100 are reduced.
  • the positioning portion 24a is a necking section or a flaring section of the connecting piece 20a; in other embodiments, the positioning portion 24a can also be a concave ring or a convex ring arranged radially on the connecting piece 20a , as long as the positioning and limitation of the connection length between the connecting piece 20a and the tee body 10 can be realized.
  • the first interface 11 and the first connecting piece 21a are connected by welding, and the second interface 12 and the second connecting piece are connected by welding.
  • 22a is connected by welding and the third interface 13 is connected with the third connecting piece 23a by welding.
  • the gaps between the positioning portion 24a and the joints on the tee body 10 should be set reasonably so as to better meet welding requirements and ensure welding quality.
  • the connecting piece 20a can also be connected to the interface on the tee body 10 through flanges, threads, etc., as long as the firmness and airtightness of the connection can be achieved.
  • the connection between the first connecting part 21a and the first interface 11, the second connecting part 22a and the second interface 12, and the connection between the third connecting part 23a and the third interface 13 of the present application can adopt different connection methods, mainly depending on the working environment and Use requirements to determine.
  • the tee pipe provided in an embodiment of the present application uses a stainless steel tee body instead of a copper tee pipe, so that the strength of the tee pipe is increased and the production cost is reduced, thereby prolonging the service life of the tee pipe.
  • the application uses the connecting piece to connect the tee body with the external pipeline, and the connecting piece is a copper tube or an aluminum tube, which not only facilitates the connection with the external pipeline, but also further reduces the Cost of production.
  • the present application also provides an air-conditioning system 200 (see FIG. 5 ) using the above-mentioned three-way pipe 100 .
  • the air-conditioning system 200 has better overall performance and lower production costs, and has broad application prospects.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

一种三通管(100)及使用该三通管的空调系统(200)，该三通管包括三通本体(10)和连接件(20)，三通本体通过连接件与外置管路连接，三通本体为不锈钢三通，连接件为铜管或者铝管。该三通管使用不锈钢三通本体，使得三通管的强度增加，生产成本降低，能够延长三通管的使用寿命。

Description

三通管及使用该三通管的空调系统
相关申请
本申请要求2021年7月7日申请的，申请号为202121540428.7，发明名称为“三通管及使用该三通管的空调系统”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
本申请涉及空调技术领域，特别是涉及三通管及使用该三通管的空调系统。
背景技术
在空调领域中，三通管使用广泛。一般的空调器的换热管多使用铜三通管，但铜三通管的强度较低，由于加工工艺的限制，在铜三通管截面形状急剧变化的转角处会存在应力集中，且该处壁厚会减薄，使得铜三通管在流体的冲击下容易损坏。
有些大型空调设备中的三通管会涉及到两种不同材质的管件的连接，但异种金属的焊接一般较为复杂，使得生产成本较高。
发明内容
根据本申请的各种实施例，提供一种三通管及使用该三通管的空调系统。
一种三通管，包括三通本体和连接件。所述三通本体通过所述连接件与外置管路连接；所述三通本体为不锈钢三通，所述连接件为铜管或者铝管。
在其中一个实施例中，所述连接件与所述三通本体连接的一端的径向上 设有与所述三通本体匹配的定位部，另一端与外置管路连接，所述定位部用于限制所述连接件与所述三通本体的连接长度。
在其中一个实施例中，所述连接件插接于所述三通本体，且所述定位部为连接件沿径向收缩并形成的缩口段；或者，所述连接件套接于所述三通本体，且所述定位部为连接件沿径向扩展并形成的扩口段。
在其中一个实施例中，所述三通本体包括第一接口、第二接口以及第三接口，且所述第二接口与第三接口同轴线设置；所述连接件包括第一连接件、第二连接件和第三连接件，所述第一接口、第二接口以及第三接口分别与所述第一连接件、第二连接件以及第三连接件连接。
在其中一个实施例中，所述第一接口的壁厚t1、所述第二接口的壁厚t2以及所述第三接口的壁厚t3满足以下关系式：t1＜t2，且t2＝t3。
在其中一个实施例中，所述第一接口的内径D1、所述第二接口的内径D2以及所述第三接口的内径D3满足以下关系式：D1≤D2，且D2＝D3。
在其中一个实施例中，所述第一接口与所述第二接口之间的连接处及/或所述第一接口和第三接口之间的连接处设置有连接部，所述连接部为圆角过渡的连接部。
在其中一个实施例中，所述第一接口与所述第一连接件通过焊接连接；及/或，所述第二接口与所述第二连接件通过焊接连接；及/或，所述第三接口与所述第三连接件通过焊接连接。
在其中一个实施例中，所述第一连接件的内径大于或等于所述第一接口的内径；及/或，所述第二连接件的内径大于或等于所述第二接口的内径；及/或，所述第三连接件的内径大于或等于所述第三接口的内径。
本申请还提供一种空调系统，所述空调系统包括如上述任意一项所述的 三通管。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征、目的和优点将从说明书、附图以及权利要求书变得明显。
附图说明
为了更好地描述和说明这里公开的那些发明的实施例和/或示例，可以参考一幅或多幅附图。用于描述附图的附加细节或示例不应当被认为是对所公开的发明、目前描述的实施例和/或示例以及目前理解的这些发明的最佳模式中的任何一者的范围的限制。
图1为本申请根据一个或多个实施例的三通管的结构示意图。
图2为图1所示三通管中的三通本体的结构示意图。
图3为根据一个或多个实施例的三通管的结构示意图。
图4为图3所示三通管在A处的局部放大示意图。
图5为根据一个或多个实施例的三通管及包括该三通管的空调系统的示意图。
元件标号说明
100、三通管；10、三通本体；11、第一接口；12、第二接口；13、第三接口；14、连接部；20、连接件；21、第一连接件；22、第二连接件；23、第三连接件；24、定位部；20a、连接件；21a、第一连接件；22a、第二连接件；23a、第三连接件；24a、定位部；200、空调系统。
以上主要元件符号说明结合附图及具体实施方式对本申请作进一步详细的说明。
具体实施方式
为使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及具体实施方式，对本申请进行进一步的详细说明。应当理解的是，此处所描述的具体实施方式仅用以解释本申请，并不限定本申请的保护范围。
需要说明的是，当组件被称为“安装于”另一个组件，它可以直接在另一个组件上或者也可以存在居中的组件。当一个组件被认为是“设置于”另一个组件，它可以是直接设置在另一个组件上或者可能同时存在居中组件。当一个组件被认为是“固定于”另一个组件，它可以是直接固定在另一个组件上或者可能同时存在居中组件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本申请。本文所使用的术语“或/及”包括一个或多个相关的所列项目的任意的和所有的组合。
请参阅图1及图2，图1为本申请提供的三通管100的结构示意图，图2为图1所示的三通本体10的结构示意图。
本申请提供一种三通管100，主要用于与外置管路连接，在制冷领域中具有广泛的应用，是极为重要的零件。可以理解，三通管100还可用于其他管路中。
三通管100包括三通本体10和连接件20。三通本体10通过连接件20与外置管路连接。三通本体10用于连通外置管路，例如，空调系统中的换热管 路。连接件20用于将三通本体10的接口连接至外置管路上。
在空调领域中，三通管使用广泛。一般的空调器的换热管多使用铜三通管，但铜三通管的强度较低，由于加工工艺的限制，在铜三通管截面形状急剧变化的转角处会存在应力集中，且该处壁厚会减薄，使得铜三通管在流体的冲击下容易损坏。
有些大型空调设备中的三通管会涉及到两种不同材质的管件的连接，但异种金属的焊接一般较为复杂，使得生产成本较高。
三通本体10为不锈钢三通，具有较大的强度，且不锈钢三通的成本比铜三通的成本更低。同时连接件20为铜管或者铝管，能够便于与外置管路连接，特别是空调系统中的铜管、铝管或其他管路进行连接，有效降低了不锈钢三通直接与外置管路连接的难度，尤其降低了三通管损坏后在空调内部维修三通管的难度。
在其中一个实施方式中，三通本体10的截面大致呈“T”形。三通本体10主要用于将外置管路连接并改变流体的方向。三通本体10包括用于与连接件20连接的第一接口11、第二接口12以及第三接口13。第一接口11、第二接口12以及第三接口13接口均为中空结构，且第二接口12与第三接口13同轴线设置。
可以理解，在其他实施方式中，三通本体10可以是其他结构，例如截面为“Y”形的三通本体10，只要能够实现三个接口相互连通即可。除此之外，第二接口12与第三接口13也可以不同轴线设置，只要能够满足加工工艺要求以及便于流体的流动即可。
进一步地，第一接口11设置在第二接口12与第三接口13之间的管段上。且通过翻边工艺使得第二接口12与第三接口13之间的管段沿径向延伸并形 成第一接口11。根据翻边工艺的变形特点，为了避免第一接口11的材料厚度过小以及产生隐性裂纹，该向外凸出的长度应当控制在一定范围内，以使与第一连接件21便于连接为宜。
在其中一个实施方式中，考虑到三通本体10整体力学性能，当不出现在流体的冲击下使得壁厚薄弱处较早地破损从而需要提前更换三通管100的情况时，三通本体10的壁厚是相等的。具体地，第一接口11的壁厚t1、第二接口12的壁厚t2以及第三接口13的壁厚t3需满足关系式：t1＜t2，且t2＝t3；同时，由于第一接口11设置的位置、结构以及翻边加工工艺的限制，第一接口11的内径不宜过大。具体地，第一接口11的内径D1、第二接口12的内径D2以及第三接口13的内径D3需满足关系式：D1≤D2，且D2＝D3。如此设置，不仅能够有效避免在加工第一接口11时出现壁厚过小甚至开裂等现象，提高了三通本体10的产品质量，还能够有效避免在使用三通管100时的限流现象。
在其中一个实施方式中，三通本体10还包括设置于第一接口11与第二接口12之间的连接部14；及/或，第一接口11与第三接口13之间的连接部14。连接部14采用较大的圆角过渡且壁厚均匀，连接部14用于将第一接口11与第二接口12之间平滑过渡；及/或，连接部14用于将第一接口11与第三接口13之间平滑过渡。如此设置，三通管100的整体结构不存在形状急剧变化的地方，有效降低了连接部14的应力集中，使得在三通管100改变流体方向时，连接部14不会在流体的冲击下容易损坏从而需要提前更换三通管100，同时三通管100也更便于加工。
连接件20包括用于将三通本体10与外置管路连接的第一连接件21、第二连接件22以及第三连接件23。第一连接件21、第二连接件22以及第三连 接件23均为中空结构，且第一连接件21与第一接口11连接、第二连接件22与第二接口12连接以及第三连接件23与第三接口13连接。除此之外，连接件20的横截面形状应该与三通本体10接口的横截面形状大致相同，以减少第一接口11与第一连接件21连接、第二接口12与第二连接件22连接以及第三接口13与第三连接件23连接的连接难度。
在其中一个实施方式中，第一连接件21的内径大于或等于三通本体10上的第一接口11的内径；及/或，第二连接件22的内径大于或等于三通本体10上的第二接口12的内径；及/或，第三连接件23的内径大于或等于三通本体10上的第三接口13的内径。如此设置，使得流经三通管100的液体不会被限流。
请参阅图3及图4，图3为本申请另一个实施方式中三通管的结构示意图，图4为图3所示三通管在A处的局部放大示意图。
三通管100的另一个实施例与上述实施例中的三通管100结构大致相同，主要改进点在于：连接件20a与三通本体10连接的一端的径向上设有与三通本体10匹配的定位部24a，另一端则与外置管路连接，例如定位部24a的另一端与空调系统中原有的铜管、铝管或其他管路进行连接。
进一步地，连接件20a插接于三通本体10，且定位部24a为连接件20a沿径向收缩并形成的缩口段，第一接口11、第二接口12以及第三接口13的外端面分别与第一连接件21a、第二连接件22a以及第三连接件23a的缩口段上的阶梯面接触；或者，连接件20a套接于三通本体10，且定位部24a为连接件20a沿径向扩展并形成的扩口段，第一接口11、第二接口12以及第三接口13的外端面分别与第一连接件21a、第二连接件22a以及第三连接件23a的扩口段上的阶梯面接触。定位部24a的主要作用是定位以便于连接件20a 与三通本体10连接，以及限制连接件20a与三通本体10的连接长度；若该长度较小，不能有效保证连接之后的三通本体10和连接件20a之间的气密性，若该长度过大，则会造成连接件20a的材料浪费，不利于降低生产成本；因此，合理控制该深度可以更好地保证连接件20a与三通本体10的接口的连接强度和密封性以及降低三通管100的生产成本。
可以理解，于本实施例中，定位部24a为连接件20a的缩口段或扩口段；于其他实施例中，定位部24a还可以为连接件20a沿径向设置的凹环或凸环，只要能够实现定位以及限制连接件20a与三通本体10的连接长度即可。
在其中一个实施方式中，为了保证连接件与三通本体10上的接口连接的牢固性和气密性，第一接口11与第一连接件21a通过焊接连接、第二接口12与第二连接件22a通过焊接连接以及第三接口13与第三连接件23a通过焊接连接。除此之外，应当合理设置定位部24a与三通本体10上各接口的间隙，使其能够更好地满足焊接要求，从而保证焊接质量。
可以理解，在其他实施方式中，连接件20a也可以通过法兰、螺纹等方式实现与三通本体10上的接口的连接，只要能够实现该连接处的牢固性和气密性即可。本申请的第一连接件21a与第一接口11、第二连接件22a与第二接口12以及第三连接件23a与第三接口13的连接可以采用不相同的连接方式，主要依据工作环境和使用要求来确定。
本申请一实施方式提供的所述三通管，使用不锈钢三通本体替代铜三通管，使得三通管的强度增加，且生产成本降低，进而能够延长三通管的使用寿命。除此之外，本申请使用所述连接件将所述三通本体与外置管路连接，所述连接件为铜管或者铝管，不仅能够便于与外置管路连接，而且进一步降低了生产成本。
本申请还提供一种采用上述三通管100的空调系统200(见图5)，该空调系统200整体使用性能更佳且生产成本更低，具有广泛的应用前景。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对实用新型专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种三通管，包括三通本体和连接件，其特征在于，所述三通本体通过所述连接件与外置管路连接；所述三通本体为不锈钢三通，所述连接件为铜管或者铝管。
  2. 根据权利要求1所述的三通管，其中，所述连接件与所述三通本体连接的一端的径向上设有与所述三通本体匹配的定位部，所述连接件的另一端与外置管路连接，所述定位部(24)用于限制所述连接件与所述三通本体的连接长度。
  3. 根据权利要求2所述的三通管，其中，所述连接件插接于所述三通本体，且所述定位部为所述连接件沿径向收缩而形成的缩口段；或者，所述连接件套接于所述三通本体，且所述定位部为所述连接件沿径向扩展而形成的扩口段。
  4. 根据权利要求1所述的三通管，其中，所述三通本体包括第一接口、第二接口以及第三接口，且所述第二接口与所述第三接口同轴线设置；所述连接件包括第一连接件、第二连接件和第三连接件，所述第一接口、所述第二接口以及所述第三接口分别与所述第一连接件、所述第二连接件以及所述第三连接件连接。
  5. 根据权利要求4所述的三通管，其中，所述第一接口的壁厚t1、所述第二接口的壁厚t2以及所述第三接口的壁厚t3满足以下关系式：
    t1＜t2，且t2＝t3。
  6. 根据权利要求4所述的三通管，其中，所述第一接口的内径D1、所述第二接口的内径D2以及所述第三接口的内径D3满足以下关系式：
    D1≤D2，且D2＝D3。
  7. 根据权利要求4所述的三通管，其中，所述第一接口与所述第二接口之间的连接处及/或所述第一接口与所述第三接口之间的连接处设置有连接部，所述连接部为圆角过渡的连接部。
  8. 根据权利要求4所述的三通管，其中，所述第一接口与所述第一连接件通过焊接连接；及/或，
    所述第二接口与所述第二连接件通过焊接连接；及/或，
    所述第三接口与所述第三连接件通过焊接连接。
  9. 根据权利要求4所述的三通管，其中，所述第一连接件的内径大于或等于所述第一接口的内径；及/或，
    所述第二连接件的内径大于或等于所述第二接口的内径；及/或，
    所述第三连接件的内径大于或等于所述第三接口的内径。
  10. 一种空调系统，其特征在于，所述空调系统包括如权利要求1-9任意一项所述的三通管。
PCT/CN2022/104309 2021-07-07 2022-07-07 三通管及使用该三通管的空调系统 Ceased WO2023280261A1 (zh)

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