WO2021129313A1 - 消音器及空调 - Google Patents

消音器及空调 Download PDF

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Publication number
WO2021129313A1
WO2021129313A1 PCT/CN2020/132531 CN2020132531W WO2021129313A1 WO 2021129313 A1 WO2021129313 A1 WO 2021129313A1 CN 2020132531 W CN2020132531 W CN 2020132531W WO 2021129313 A1 WO2021129313 A1 WO 2021129313A1
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WO
WIPO (PCT)
Prior art keywords
tube
sleeve
muffler
pipe
diameter
Prior art date
Application number
PCT/CN2020/132531
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English (en)
French (fr)
Inventor
王文杰
单宇宽
金烨
Original Assignee
浙江盾安人工环境股份有限公司
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Application filed by 浙江盾安人工环境股份有限公司 filed Critical 浙江盾安人工环境股份有限公司
Priority to JP2022533369A priority Critical patent/JP7345660B2/ja
Publication of WO2021129313A1 publication Critical patent/WO2021129313A1/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
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/033—Noise absorbers
    • 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
    • F24F13/24—Means for preventing or suppressing noise

Definitions

  • This application relates to the technical field of air conditioning equipment manufacturing, in particular to a muffler and an air conditioner.
  • the muffler includes a muffler tube.
  • the muffler tube is a structure with a large middle and a small end.
  • the openings at both ends of the muffler tube are usually connected to the connecting tube by a connecting sleeve, and the connecting tube communicates with other components.
  • the openings at both ends of the muffler tube are usually made to have a larger amount of necking (the necking amount is equal to the large tube diameter minus the small tube diameter and then divided by the large tube diameter. A description of).
  • the necking amount is equal to the large tube diameter minus the small tube diameter and then divided by the large tube diameter. A description of).
  • the necking volume is too large, the two ends of the muffler tube are more likely to be cracked, which greatly affects the pass rate in the muffler production.
  • a silencer is provided.
  • a muffler including:
  • the muffler pipe includes a first pipe and two second pipes respectively connected to both ends of the first pipe.
  • the pipe diameter of the second pipe is smaller than the pipe diameter of the first pipe, and the second pipe is far away from the first pipe.
  • a step is formed on the outer wall of one end of the first tube, the step is arranged along the circumferential direction of the second tube, and the outer diameter of the step is smaller than the outer diameter of the second tube;
  • the connecting sleeve is used to connect the muffler tube and the connecting tube in the air conditioner.
  • the tube diameter of the connecting tube is usually smaller than the tube diameter of the muffler tube. Since the outer diameter of the step is smaller than the outer diameter of the second tube, the setting of the step effectively reduces the amount of necking of the second tube relative to the first tube under the condition that the inner diameter of the second part of the connecting sleeve remains unchanged.
  • the flaring amount of the first part of the connecting sleeve relative to the second part which greatly reduces the probability of sidewall cracking during the processing of the muffler tube and/or the connecting sleeve, and effectively improves the product qualification rate of the muffler processing .
  • the edge of the step close to one end of the first tube is formed with a transition chamfer. In this way, the generation of burrs during the processing of the steps can be reduced, so as to facilitate the subsequent installation of the pre-connecting sleeve.
  • the angle between the extending direction of the transition chamfer and the end surface of the second tube is less than 45°. In this way, the thickness of the tube wall of the part of the second tube where the steps are provided can be increased, and the connection strength between the second tube and the connecting sleeve can be improved.
  • the connecting sleeve includes a first sleeve, a transition sleeve, and a second sleeve, and two ends of the transition sleeve are connected to the first sleeve and the second sleeve respectively.
  • the first sleeve is the first part
  • the second sleeve is the second part
  • the inner diameter of the transition sleeve is in a direction that points to the second part along the first part slowing shrieking. In this way, the flow loss of the airflow in the connecting sleeve 120 can be reduced.
  • the first sleeve, the transition sleeve, and the second sleeve are integrally formed. In this way, the welding process can be saved.
  • the connecting sleeve is a copper sleeve. In this way, it is convenient to weld the connecting sleeve to the connecting pipe of the air conditioner.
  • the inner wall of the second part is convexly provided with a limiting protrusion. In this way, restricting the connecting tube can prevent the connecting tube from being inserted too deep and hitting the second tube.
  • the outer side wall of the second part is recessed inward to form the limiting protrusion. In this way, the process is simplified.
  • the limiting protrusions there are a plurality of the limiting protrusions, and the plurality of limiting protrusions are arranged at intervals along the circumferential direction of the connecting sleeve. In this way, the limiting effect can be enhanced.
  • a welding joint is formed between the inner wall of the first part and the axial end surface of the second tube, so that the first part and the second tube are fixedly connected; the welding The joint is arranged along the circumferential direction of the second tube.
  • the solder joint is a copper-tin solder joint. In this way, the welding strength can be enhanced.
  • the muffler tube is a stainless steel muffler tube. In this way, the service life of the muffler tube can be prolonged and the cost can be reduced.
  • An air conditioner including:
  • FIG. 1 is a schematic diagram of the structure of a muffler in a preferred embodiment of the application.
  • Fig. 2 is a partial enlarged view of A in Fig. 1.
  • Fig. 3 is a schematic diagram of the structure of the muffler tube in the muffler shown in Fig. 1.
  • Fig. 4 is a partial enlarged view of B in Fig. 3.
  • Fig. 5 is a schematic structural diagram of the connecting sleeve in the muffler shown in Fig. 1.
  • Fig. 6 is a schematic diagram of the structure of the muffler shown in Fig. 1 before welding.
  • Fig. 7 is a partial enlarged view of C in Fig. 6.
  • the present application provides an air conditioner (not shown) and a silencer 100 thereof.
  • the air conditioner includes a muffler 100 and two connecting pipes (not shown).
  • the two connecting pipes communicate with both ends of the muffler 100 respectively.
  • the end of the connecting pipe away from the muffler 100 communicates with other components of the air conditioner.
  • the above-mentioned muffler 100 is not limited to use in air conditioners, and can also be used in other refrigeration equipment such as freezers and refrigerators, and can also be used in power equipment such as air compressors, generators, and boiler exhaust ports.
  • the application of the muffler 100 to an air conditioner is taken as an example for description.
  • the muffler 100 in the preferred embodiment of the present application includes a muffler tube 110 and two connecting sleeves 120.
  • the muffler pipe 110 includes a first pipe 111 and two second pipes 112 respectively connected to two ends of the first pipe 111.
  • the diameter of the second pipe 112 is smaller than that of the first pipe 111.
  • the pipe diameter refers to the average value between the outer diameter of the pipe and the inner diameter of the pipe.
  • the first tube 111 and the second tube 112 may be an integrally formed structure, or may be a spliced structure fixedly connected to each other by welding, bonding, or the like, which is not limited in the present application.
  • the outer wall of the second tube 112 at one end away from the first tube 111 has a step 1121 formed along the circumferential direction of the second tube 112.
  • the outer diameter of the step 1121 is smaller than the outer diameter of the second tube 112.
  • the outer wall of the end of the second tube 112 away from the first tube 111 is processed by machining (for example, milling, turning, etc.) to form the step 1121.
  • a transition chamfer 1122 is formed on the edge of the step 1121 close to one end of the first tube 111.
  • the included angle ⁇ between the extending direction of the transition chamfer 1122 and the diameter direction of the second tube 112 is less than 45 degrees, that is, the included angle ⁇ between the extending direction of the transition chamfer 1122 and the end surface of the second tube 112 is less than 45 degree.
  • the setting of the transition chamfer 1122 can reduce the generation of burrs during the processing of the step 1121, facilitate the subsequent assembly of the muffler 100, and improve the processing quality of the muffler 100, and the included angle ⁇ is less than 45 degrees, so that the The wall of the second tube 112 of the step 1121 is not too thin, thereby improving the welding strength with the connecting sleeve 120.
  • the first tube 111 and the second tube 112 are integrally formed.
  • the muffler tube 110 has an integrally formed structure. Setting the first tube 111 and the second tube 112 into an integral structure not only makes the connection between the first tube 111 and the second tube 112 stronger, but also makes the processing of the muffler tube 110 easier.
  • the muffler tube 110 is a stainless steel tube. Since stainless steel has greater strength and excellent corrosion resistance, the muffler tube 110 also has greater strength and excellent corrosion resistance. The greater strength makes the muffler 100 less likely to crack or break even if the muffler 100 works in a vibrating environment for a long time; the excellent corrosion resistance makes the muffler 110 even if it is exposed to air or other belts for a long time. Contact with water vapor or corrosive gas, the probability of rusting is also low. Therefore, setting the muffler tube 110 as a stainless steel tube greatly prolongs the service life of the muffler 100 and can reduce the cost.
  • the connecting sleeve 120 is disposed at an end of the second tube 112 away from the first tube 111.
  • the connecting sleeve 120 includes a first part 121 and a second part 122.
  • the first part 121 is sleeved and fixed on the step 1121.
  • the connecting sleeve 120 is a reducing sleeve, and the first part 121 is sleeved on the outside of the second tube 112 and fixedly connected to the second tube 112 by welding, bonding, or the like.
  • the inner diameter of the second part 122 is smaller than the inner diameter of the second tube 112.
  • the inner diameter of the second part 122 is smaller than the inner diameter of the first part 121, so the connecting sleeve 120 is a reducing sleeve.
  • the connecting pipe passes through the second part 122. Therefore, the connecting sleeve 120 is used to connect the muffler 100 with other components in the air conditioner.
  • the inner diameter of the second part 122 of the connecting sleeve 120 is smaller than the inner diameter of the second tube 112 of the muffler tube 110, so the connecting sleeve 120 can further reduce the diameter of the second tube 112 at both ends of the muffler tube 110 to ensure that the muffler 100 has a better diameter. Good noise reduction effect.
  • the connecting sleeve 120 is a copper sleeve. Because copper has the characteristics of good ductility and softness, the connecting sleeve 120 is set as a copper sleeve, which not only makes the processing of the connecting sleeve 120 simpler, but the copper connecting sleeve 120 is convenient for welding with the connecting pipe in the air conditioner. connection.
  • the setting of the step 1121 effectively reduces the second tube 112 relative to the first tube 112.
  • the necking amount of the tube 111 and/or the flaring amount of the first part 121 of the connecting sleeve 120 relative to the second part 122 greatly reduces the probability of sidewall cracking during the processing of the muffler tube 110 and/or the connecting sleeve 120 , Effectively improve the qualified rate of products processed by the muffler 100.
  • the connecting sleeve 120 includes a first sleeve 123, a transition sleeve 124 and a second sleeve 125. Two ends of the transition sleeve 124 are respectively communicated with the first sleeve 123 and the second sleeve 125. Specifically, the first sleeve 123, the transition sleeve 124, and the second sleeve 125 are coaxially arranged. The first sleeve 123 is the first part 121, and the second sleeve 125 is the second part 122. Thus, the first sleeve 123 is sleeved and fixed on the step 1121.
  • the inner diameter of the transition sleeve 124 gradually decreases along the direction in which the first part 121 points to the second part 122.
  • the transition sleeve 124 is a tapered cylinder. Therefore, the provision of the transition sleeve 124 can reduce the probability of the airflow flowing through the connecting sleeve 120 colliding in the connecting sleeve 120, and can further improve the noise reduction effect of the muffler 100.
  • first sleeve 123, the transition sleeve 124, and the second sleeve 125 are integrally formed.
  • the first sleeve 123, the transition sleeve 124, and the second sleeve 125 are set as an integral structure, which not only makes the connection between the first sleeve 123 and the transition sleeve 124, and the transition sleeve 124 and the second sleeve 125 It is stronger, and also makes the processing of the connecting sleeve 120 easier.
  • the second portion 122 is provided with a limiting protrusion 1221 protruding from the inner wall of the first portion 121.
  • the setting of the limiting protrusion 1221 can limit the connecting pipe passing through the second part 122, so the setting of the limiting protrusion 1221 can improve the installation accuracy of the connecting pipe and the muffler 100 during installation.
  • the arrangement of the limiting protrusion 1221 can also reduce the probability that the connecting pipe collides with the second pipe 112 of the muffler 100 due to the excessively deep insertion of the connecting pipe into the connecting sleeve 120, resulting in damage to the connecting pipe, etc. Ensure the smooth progress of the installation of the silencer 100 and other components.
  • the connecting sleeve 120 includes the first sleeve 123, the transition sleeve 124 and the second sleeve 125, the limiting protrusion 1221 protrudes from the inner wall of the second sleeve 125.
  • the side wall of the second portion 122 is recessed inward to form a limiting protrusion 1221.
  • the limiting protrusion 1221 is formed so that the side wall of the second part 122 is recessed inward, which greatly simplifies the processing of the limiting protrusion 1221.
  • the second part 122 Correspondingly, grooves are formed on the outer surface.
  • the multiple limiting protrusions 1221 there are multiple limiting protrusions 1221, and the multiple limiting protrusions 1221 are arranged at intervals along the circumferential direction of the connecting sleeve 120.
  • the arrangement of the multiple limiting protrusions 1221 can improve the limiting effect on the connecting pipe, and further reduce the probability of the connecting pipe colliding with the inner wall of the second pipe 112 of the muffler pipe 110.
  • a welding joint 130 is formed between the inner wall of the first part 121 and the axial end surface of the second tube 112 to fix the first part 121 and the second tube 112 connection.
  • the welding joint 130 is arranged along the circumferential direction of the second tube 112.
  • the welding joint 130 is a connecting joint formed by solidifying the molten solder after cooling, and is used to realize the welding of the connecting sleeve 120 and the muffler tube 110. Since the welding joint 130 is arranged along the circumferential direction of the second tube 112, the sealing performance between the second tube 112 and the connecting sleeve 120 can be improved. Therefore, the arrangement of the welding joint 130 not only makes the connection between the connecting sleeve 120 and the muffler tube 110 stronger, but also improves the sealing performance of the muffler 100.
  • the solder forming the solder joint 130 is the solder ring 140 before soldering.
  • the welding ring 140 is received in the first part 121 and abuts between the inner wall of the first part 121 and the end of the second tube 112 away from the end of the first tube 111.
  • the welding ring 140 is a welding material with a relatively low melting temperature.
  • the connecting sleeve 120 and the muffler tube 110 need to be welded, the connecting sleeve 120 containing the welding ring 140 only needs to be sleeved on the step 1121 of the second tube 112, and placed together in the brazing equipment for heating and then cooling, that is, The welding between the connecting sleeve 120 and the muffler tube 110 can be completed. Therefore, the arrangement of the welding ring 140 makes the welding work between the connecting sleeve 120 and the muffler tube 110 more convenient, and at the same time makes the welding reliability between the connecting sleeve 120 and the muffler tube 110 higher.
  • the solder ring 140 is generally made of copper-tin alloy, silver-copper alloy, tin-lead alloy, and the like.
  • the solder joints 130 all have the advantages of low melting point and high strength. Therefore, the welding joint 130 is set as a copper-tin welding joint, so that the welding strength between the connecting sleeve 120 and the muffler tube 110 is greater, and the connection between the connecting sleeve 120 and the muffler tube 110 is stronger.
  • the connecting sleeve 120 is used to connect the muffler pipe 110 and the connecting pipe in the air conditioner.
  • the pipe diameter of the connecting pipe is usually small. Since the outer diameter of the step 1121 is smaller than the outer diameter of the second tube 112, when the inner diameter of the second part 122 of the connecting sleeve 120 remains the same, the setting of the step 1121 effectively reduces the second tube 112 relative to the second tube 112.
  • the amount of necking of a tube 111 and/or the amount of flaring of the first part 121 of the connecting sleeve 120 relative to the second part 122 greatly reduces the occurrence of sidewall cracks during the processing of the muffler tube 110 and/or the connecting sleeve 120. Probability, effectively improving the qualified rate of products processed by the muffler 100.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust Silencers (AREA)
  • Pipe Accessories (AREA)
  • Duct Arrangements (AREA)

Abstract

本申请涉及一种消音器及空调。消音器包括消音管及两个连接套。消音管包括第一管及分别连通于第一管两端的两个第二管。第二管的管径小于第一管的管径。第二管远离第一管一端的外壁形成有台阶。台阶沿第二管的周向设置。台阶的外径小于第二管的外径。连接套设置于第二管远离第一管一端。连接套包括相对的第一部及第二部。第一部套设并固定于台阶上。第二部的内径小于第二管的内径。在连接套的第二部内径不变的情况下，台阶的设置可减小第二管相对于第一管的缩口量和/或连接套的第一部相对于第二部的扩口量，降低了消音管和/或连接套加工时发生侧壁开裂等情况的概率，提高了消音器加工的产品合格率。

Description

消音器及空调
相关申请
本申请要求2019年12月26日申请的，申请号为201922388518.8，发明名称为“消音器及空调”的中国专利的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及空调设备制造技术领域，特别是涉及一种消音器及空调。
背景技术
消音器作为一种管道降噪器件，通常被安装于空调等制冷设备中，起缓冲及减弱噪音的作用。而消音器包括消音管，消音管为中间大两端小的结构，而消音管两端的开口通常利用连接套与连接管连接，该连接管连通其他部件。为了提高消音效果，通常会使消音管两端开口处具有较大缩口量(缩口量等于大管径减去小管径再除以大管径，缩口量是对消音管变径量的一种描述)。但是在生产过程中，若是缩口量过大，消音管的两端就越容易发生开裂等情况，大大影响了消音器生产中的合格率。
发明内容
根据本申请的各种实施例，提供一种消音器。
一种消音器，包括：
消音管，包括第一管及分别连通于所述第一管两端的两个第二管，所述第二管的管径小于所述第一管的管径，且所述第二管远离所述第一管一端的外壁形成有台阶，所述台阶沿所述第二管的周向设置，且所述台阶的外径小于所述第二管的外径；及
设置于所述第二管远离所述第一管一端的连接套，且所述连接套包括第一部及第二部，所述第一部套设并固定于所述台阶上，且所述第二部的内径小于所述第二管的内径。
上述消音器，在实际安装使用时，连接套用于连通消音管及空调中的连接管，为了保证消音效果，连接管的管径通常都小于消音管的管径。由于台阶的外径小于第二管的外径，所以在连接套的第二部内径不变的情况下，台阶的设置，有效地减小了第二管相对于第一管的缩口量和/或连接套的第一部相对于第二部的扩口量，大大降低了消音管和/或连接套加工时发生侧壁开裂等情况的概率，有效地提高了消音器加工的产品合格率。
在其中一个实施例中，所述台阶靠近所述第一管一端的边缘形成有过渡倒角。如此，能够减少在台阶在加工过程中毛刺的产生，以方便后续预连接套的安装。
在其中一个实施例中，所述过渡倒角的延伸方向与所述第二管的端面之间的夹角小于45°。如此，能够加大设有台阶的那部分第二管的管壁的厚度，提高第二管与连接套的连接强度。
在其中一个实施例中，所述连接套包括第一套筒、过渡套筒及第二套筒，且所述过渡套筒的两端分别与所述第一套筒及所述第二套筒连通，所述第一套筒为所述第一部，所述第二套筒为所述第二部，且所述过渡套筒的内径沿所述第一部指向所述第二部的方向逐渐减小。如此，能够减小连接套120内的气流的流动损失。
在其中一个实施例中，所述第一套筒、所述过渡套筒及所述第二套筒为一体成型结构。如此，能够节省焊接工艺。
在其中一个实施例中，所述连接套为铜套。如此，方便连接套与空调 的连接管焊接连接。
在其中一个实施例中，所述第二部的内壁凸设有限位凸点。如此，对于连接管进行限位，能够防止连接管插入过深而碰伤第二管。
在其中一个实施例中，所述第二部的外侧壁向内凹陷形成所述限位凸点。如此，简化工艺。
在其中一个实施例中，所述限位凸点为多个，多个所述限位凸点沿连接套的周向间隔设置。如此，能够加强限位效果。
在其中一个实施例中，所述第一部的内壁与所述第二管的轴向端面之间形成有焊接接头，以使所述第一部与所述第二管固定连接；所述焊接接头沿所述第二管的周向设置。
在其中一个实施例中，所述焊接接头为铜锡焊接接头。如此，能够加强焊接强度。
在其中一个实施例中，所述消音管为不锈钢消音管。如此，能够延长消音管的使用寿命，且降低成本。
一种空调，包括：
消音器；及
两个连接管，分别穿设于两个所述第二部内。
附图说明
图1为本申请较佳实施例中消音器的结构示意图。
图2为图1中A处的局部放大图。
图3为图1所示消音器中的消音管的结构示意图。
图4为图3中B处的局部放大图。
图5为图1所示消音器中的连接套的结构示意图。
图6为图1所示消音器焊接前的结构示意图。
图7为图6中C处的局部放大图。
附图中标号的含义为：
100表示消音器；110表示消音管；111表示第一管；112表示第二管；1121表示台阶；1122表示过渡倒角；120表示连接套；121表示第一部；122表示第二部；1221表示限位凸点；123表示第一套筒；124表示过渡套筒；125表示第二套筒；130表示焊接接头；140表示焊环。
具体实施方式
为了便于理解本申请，下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的较佳的实施例。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使对本申请的公开内容的理解更加透彻全面。
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例的目的，不是旨在于限制本申请。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
在描述位置关系时，除非另有规定，否则当一元件被指为在另一元件“上”时，其能直接在其他元件上或亦可存在中间元件。亦可以理解的是，当元件被指为在两个元件“之间”时，其可为两个元件之间的唯一一个，或亦可存在一或多个中间元件。
在使用本文中描述的“包括”、“具有”、和“包含”的情况下，除非使用了明确的限定用语，例如“仅”、“由……组成”等，否则还可以添加另一部件。除 非相反地提及，否则单数形式的术语可以包括复数形式，并不能理解为其数量为一个。
此外，附图并不是1：1的比例绘制，并且各元件的相对尺寸在附图中仅以示例地绘制，而不一定按照真实比例绘制。
请参阅图1及图2，本申请提供了一种空调(图未示)及其消音器100。其中，空调包括消音器100及两个连接管(图未示)。两个连接管分别与消音器100的两端连通。连接管远离消音器100的一端与空调的其他部件连通。
需要说明的是，上述消音器100不限于在空调中使用，还可以在冰柜、冰箱等其他制冷设备中使用，更可以应用于空压机、发电机、锅炉排气口等动力设备上。在申请中以将消音器100应用于空调中为例进行说明。
本申请较佳实施例中的消音器100包括消音管110及两个连接套120。
请参阅图3，消音管110包括第一管111及分别连通于第一管111两端的两个第二管112。第二管112的管径小于第一管111的管径。其中，管径是指管外径与管内径之间的平均值。第一管111及第二管112可以为一体成型结构，也可以为相互之间通过焊接、粘接等方式固定连接的拼接结构，本申请并不对此加以限定。
请一并参阅图4，第二管112远离第一管111一端的外壁沿第二管112的周向形成有台阶1121。台阶1121的外径小于第二管112的外径。具体的，通过机械加工的方式(例如铣削、车削等方式)对第二管112远离第一管111一端的外壁进行加工，以形成台阶1121。
在本实施例中，台阶1121靠近第一管111一端的边缘形成有过渡倒角1122。具体的，过渡倒角1122的延伸方向与第二管112直径方向之间的夹角θ小于45度,即，过渡倒角1122的延伸方向与第二管112的端面之间的夹角θ 小于45度。过渡倒角1122的设置，可减少在台阶1121加工过程中毛刺的产生，以方便后续消音器100的装配，并提高消音器100的加工质量，并且，夹角θ小于45度，以使设有台阶1121的第二管112的管壁不至于太薄，从而提高与连接套120的焊接强度。
在本实施例中，第一管111及第二管112为一体成型结构。由此，消音管110为一体成型结构。将第一管111及第二管112设置为一体成型结构，不但使得第一管111及第二管112的连接更为牢固，而且还使得消音管110的加工更为简便。
在本实施例中，消音管110为不锈钢管。由于不锈钢具有较大的强度及优异的耐腐蚀性，故消音管110也具有较大的强度及优异的耐腐蚀性能。较大的强度，使得消音器100即使长时间工作在振动的环境下，也不容易发生消音管110开裂或断裂等情况；优异的耐腐蚀性能，使得消音管110即使长时间与空气或者其他带水汽或腐蚀性的气体接触，发生锈蚀的概率也较低。因此，将消音管110设置为不锈钢管，大大延长消音器100的使用寿命，并且能够降低成本。
请一并参阅图5，连接套120设置于第二管112远离第一管111一端。由此，连接套120为两个，分别设置于两个第二管112上。连接套120包括第一部121及第二部122。第一部121套设并固定于台阶1121上。
连接套120为一个异径套，第一部121通过焊接、粘接等方式套接于第二管112外并与第二管112固定连接。第二部122的内径小于第二管112的内径。由此，第二部122的内径小于第一部121的内径，故连接套120为异径套。
在空调中，连接管穿设于第二部122内。故连接套120用于连接消音 器100与空调中的其他部件。而连接套120第二部122的内径小于消音管110的第二管112的内径，故连接套120还可实现对消音管110两端的第二管112的进一步缩径，保证消音器100具有更好的消音效果。
在本实施例中，连接套120为铜套。由于铜具有延展性好、质软等特性，故将连接套120设置为铜套，不但使得连接套120的加工较为简单，铜制的连接套120方便与空调中的连接管进行同管材的焊接连接。
由于台阶1121的外径小于第二管112的外径，所以在连接套120第二部122的内径不变的情况下，台阶1121的设置，有效地减小了第二管112相对于第一管111的缩口量和/或连接套120的第一部121相对于第二部122的扩口量，大大降低了消音管110和/或连接套120加工时发生侧壁开裂等情况的概率，有效地提高了消音器100加工的产品合格率。其中，缩口量＝(第一管111的管径-第二管112的管径)/第一管111的管径；扩口量＝(第一部121的内径-第二部122的内径)/第二部122的内径。
请再次参阅图5，在本实施例中，连接套120包括第一套筒123、过渡套筒124及第二套筒125。过渡套筒124的两端分别与第一套筒123及第二套筒125连通。具体的，第一套筒123、过渡套筒124及第二套筒125同轴设置。第一套筒123为第一部121，第二套筒125为第二部122。由此，第一套筒123套设并固定于台阶1121上。过渡套筒124的内径沿第一部121指向第二部122的方向逐渐减小。由此，过渡套筒124为锥形筒。由此，过渡套筒124的设置，可减小流经连接套120的气流在连接套120内发生碰撞的概率，可进一步提高消音器100的消音效果。
进一步的，在本实施例中，第一套筒123、过渡套筒124及第二套筒125为一体成型结构。将第一套筒123、过渡套筒124及第二套筒125设置为 一体成型结构，不但使得第一套筒123与过渡套筒124及过渡套筒124与第二套筒125之间的连接更为牢固，而且还使得连接套120的加工更为简便。
在本实施例中，第二部122靠近第一部121的内壁凸设有限位凸点1221。限位凸点1221的设置，可对穿设于第二部122内的连接管起到限位作用，故限位凸点1221的设置，可提高连接管与消音器100安装时的安装精度。而且，限位凸点1221的设置，还可降低由于连接管插入连接套120的深度过深，而发生连接管与消音器100的第二管112碰撞而导致连接管损坏等情况的概率，以保证消音器100与其他部件安装的顺利进行。
当连接套120包括第一套筒123、过渡套筒124及第二套筒125时，限位凸点1221凸设于第二套筒125的内壁。
进一步的，在本实施例中，第二部122的侧壁向内凹陷形成限位凸点1221。在连接套120的加工过程中，只需要利用冲压设备对第二部122的侧壁进行冲压，即可实现限位凸点1221的加工。因此，将限位凸点1221设置为第二部122的侧壁向内凹陷形成，大大简化了限位凸点1221的加工，当第二部122的侧壁向内凹陷时，第二部122的外表面相应地形成了凹槽。
进一步的，在本实施例中，限位凸点1221为多个，且多个限位凸点1221沿连接套120的周向间隔设置。由此，多个限位凸点1221的设置，可提高对连接管的限位效果，进一步降低了连接管与消音管110的第二管112的内壁发生碰撞的概率。
请再次参阅图1及图2，在本实施例中，第一部121的内壁与第二管112的轴向端面之间形成有焊接接头130，以使第一部121与第二管112固定连接。焊接接头130沿第二管112的周向设置。其中，焊接接头130为熔融后的焊料冷却后固化形成的连接接头，用于实现连接套120与消音管110的 焊接。由于焊接接头130沿第二管112的周向设置，可提高第二管112与连接套120之间的密封性。因此，焊接接头130的设置，不但使得连接套120与消音管110之间的连接较为牢固，而且还提高了消音器100的密封性能。
请再次参阅图6及图7，具体的，在焊接之前，形成焊接接头130的焊料为焊环140。焊环140收容于第一部121内，并抵接于第一部121的内壁与第二管112远离第一管111一端的端部之间。焊环140是一种焊接材料，其熔化温度较低。当连接套120与消音管110需要焊接时，只需要将收容有焊环140的连接套120套设于第二管112的台阶1121上，并一同放置于钎焊设备中进行加热后冷却，即可完成连接套120与消音管110之间的焊接。因此，焊环140的设置，使得连接套120与消音管110之间的焊接工作更为方便，同时使得连接套120与消音管110之间的焊接可靠性更高。焊环140的材质一通为铜锡合金、银铜合金、锡铅合金等。
进一步的，在本实施例中，由于铜锡合金具有熔点低、强度大等特性，使得焊接接头130均具有熔点低、强度大等优点。因此，将焊接接头130设置为铜锡焊接接头，使得连接套120与消音管110之间的焊接强度较大，进而使得连接套120与消音管110之间的连接更为牢固。
上述空调及其消音器100，在实际使用安装时，连接套120用于连通消音管110及空调中的连接管，为了保证消音效果，连接管的管径通常都较小。而由于台阶1121的外径小于第二管112的外径，所以在连接套120第二部122的内径不变的情况下，台阶1121的设置，有效地减小了第二管112相对于第一管111的缩口量和/或连接套120的第一部121相对于第二部122的扩口量，大大降低了消音管110和/或连接套120加工时发生侧壁开裂等情况的概率，有效地提高了消音器100加工的产品合格率。
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申请专利范围的限制。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 (13)

  1. 一种消音器，其特征在于，包括：
    消音管，包括第一管及分别连通于所述第一管两端的两个第二管，所述第二管的管径小于所述第一管的管径，且所述第二管远离所述第一管一端的外壁形成有台阶，所述台阶沿所述第二管的周向设置，且所述台阶的外径小于所述第二管的外径；及
    设置于所述第二管远离所述第一管一端的连接套，且所述连接套包括第一部及第二部，所述第一部套设并固定于所述台阶上，且所述第二部的内径小于所述第二管的内径。
  2. 根据权利要求1所述的消音器，其特征在于，所述台阶靠近所述第一管一端的边缘形成有过渡倒角。
  3. 根据权利要求2所述的消音器，其特征在于，所述过渡倒角的延伸方向与所述第二管的端面之间的夹角小于45°。
  4. 根据权利要求1所述的消音器，其特征在于，所述连接套包括第一套筒、过渡套筒及第二套筒，且所述过渡套筒的两端分别与所述第一套筒及所述第二套筒连通，所述第一套筒为所述第一部，所述第二套筒为所述第二部，且所述过渡套筒的内径沿所述第一部指向所述第二部的方向逐渐减小。
  5. 根据权利要求3所述的消音器，其特征在于，所述第一套筒、所述过渡套筒及所述第二套筒为一体成型结构。
  6. 根据权利要求1所述的消音器，其特征在于，所述连接套为铜套。
  7. 根据权利要求1所述的消音器，其特征在于，所述第二部的内壁凸设有限位凸点。
  8. 根据权利要求7所述的消音器，其特征在于，所述第二部的外侧壁向内 凹陷形成所述限位凸点。
  9. 根据权利要求7所述的消音器，其特征在于，所述限位凸点为多个，多个所述限位凸点沿连接套的周向间隔设置。
  10. 根据权利要求1所述的消音器，其特征在于，所述第一部的内壁与所述第二管的轴向端面之间形成有焊接接头，以使所述第一部与所述第二管固定连接；所述焊接接头沿所述第二管的周向设置。
  11. 根据权利要求10所述的消音器，其特征在于，所述焊接接头为铜锡焊接接头。
  12. 根据权利要1所述的消音器，其特征在于，所述消音管为不锈钢消音管。
  13. 一种空调，其特征在于，包括：
    如权利要求1至12任一项所述的消音器；及
    两个连接管，分别穿设于两个所述第二部内。
PCT/CN2020/132531 2019-12-26 2020-11-28 消音器及空调 WO2021129313A1 (zh)

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