CN111271532A - Connector of automobile air conditioner pipeline - Google Patents

Connector of automobile air conditioner pipeline Download PDF

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Publication number
CN111271532A
CN111271532A CN202010116150.4A CN202010116150A CN111271532A CN 111271532 A CN111271532 A CN 111271532A CN 202010116150 A CN202010116150 A CN 202010116150A CN 111271532 A CN111271532 A CN 111271532A
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Prior art keywords
annular
hole
metal sealing
component
annular piercing
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CN202010116150.4A
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CN111271532B (en
Inventor
王奔剑
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CHANGZHOU SENSTAR AUTOMOBILE AIR CONDITIONER CO LTD
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CHANGZHOU SENSTAR AUTOMOBILE AIR CONDITIONER CO LTD
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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
    • F16L21/00—Joints with sleeve or socket
    • F16L21/08—Joints with sleeve or socket with additional locking means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00557—Details of ducts or cables
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0881—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing the sealing effect being obtained by plastic deformation of the packing

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention relates to a connector of an automobile air-conditioning pipeline, wherein a first through hole penetrating through a first body is arranged on the first body, one end of a first annular piercing part is fixed with the first body, and the first annular piercing part surrounds the hole opening of the first through hole; the second body is provided with a second through hole penetrating through the second body, one end of the second annular piercing part is fixed with the second body, and the second annular piercing part surrounds the hole opening of the second through hole; the metal sealing member is positioned between the first annular piercing member and the second annular piercing member, and pressure is applied to the first body and/or the second body such that the first annular piercing member pierces through one end of the metal sealing member to form a first seal between the first body and the metal sealing member, and the second annular piercing member pierces through the other end of the metal sealing member to form a second seal between the second body and the metal sealing member. The invention has the advantages of simple structure and high reliability.

Description

Connector of automobile air conditioner pipeline
Technical Field
The invention relates to the technical field of automobile air conditioner pipe fittings, in particular to a connector of an automobile air conditioner pipeline.
Background
For example, CN209278668U discloses a sealing structure of an R744 air conditioning pipeline, which includes a male joint, an end face gasket, a first O-ring, a second O-ring, and a female joint, wherein a sealing shaft of a hollow structure is disposed on an end face of the inner side of the male joint, the sealing shaft is communicated with a connecting hole for mounting an air conditioning pipe on an end face of the outer side of the male joint, and the end face gasket, the first O-ring, and the second O-ring are sequentially mounted on the sealing shaft along the axial direction; and a sealing through hole for inserting the sealing shaft is formed in the end face of the inner side of the female joint, is of a stepped structure and is communicated with a connecting hole which is formed in the end face of the outer side of the female joint and used for installing an air conditioning pipe.
In the above-described seal structure, the intention of the designer is: the sealing shaft is inserted into a small hole of a stepped hole in the female joint, a gap between the sealing shaft and the small hole is sealed by the first O-shaped ring and the second O-shaped ring, and the end face sealing gasket is clamped by the male joint and the female joint so as to seal an orifice of the stepped hole. Thereby ensuring the sealability between the male and female connectors through two sealing structures. The above structure has the following problems:
1, the O-ring is typically stretched by a certain amount after being installed in the sealing groove. The stretching amount a can be represented by the following formula:
α＝(d+d0)/(d1+d0)
wherein d represents the shaft diameter (mm); d1Indicating the inner diameter (mm) of the O-shaped ring
The amount of stretching also has a great influence on the sealing performance and the service life of the O-shaped ring. The large stretching amount not only causes the difficulty in installing the O-shaped ring, but also causes the difficulty in installing the O-shaped ring due to the diameter d of the cross section0A change occurs to lower the compression ratio so as to cause leakage.
However, for the air conditioning pipeline of the automobile, the flowing working medium inside the pipeline is generally R744, and the R744 working medium has extremely high technical requirements on parts and even the whole system: the working pressure in the system is increased by 3-4 times, the working pressure at a high-pressure end reaches 14Mpa, the working temperature is increased to 165 ℃, the molecular weight is small, and the permeability is stronger. Therefore, in order to provide the first O-ring and the second O-ring for sealing, in the field, in order to provide the O-rings with a tensile amount to ensure corresponding sealing performance, only the O-ring with a hardness (shore a) of "70 ± 5" can be selected at the highest for the hardness of the O-rings, and the O-ring can bear a maximum pressure of 10 MPa.
The following table shows the hardness of various O-ring rubber materials as a function of operating pressure
Figure BDA0002391563510000011
Figure BDA0002391563510000021
From the above, it can be seen that if the O-ring with hardness (shore a) exceeding 75 is selected, the O-ring is stretched less due to its excessive hardness, and the O-ring is subjected to a pressing force in the radial direction of the female connector and the seal shaft during the assembly process, resulting in difficulty in assembly. Therefore, the sealing structure can only select the O-ring with the hardness (Shore A) of 70 +/-5, and the O-ring is adopted to result in that: the pressure of 14Mpa generated by the R744 working medium can not be borne, and after the O-shaped ring is used for a period of time, the O-shaped ring is broken by the high-pressure acting force generated by the R744 working medium, so that the sealing effect is lost.
And 2, the end face sealing gasket is provided with a metal reinforcing ring, and when the male joint and the female joint clamp the end face sealing gasket, the end face sealing gasket forms sealing on the sealing through hole through the matching of the metal reinforcing ring and the female joint. However, the female joint is a metal piece, and sealing cannot be achieved between metals through surface-to-surface matching, so that the end face gasket loses the meaning of sealing the through hole.
3, after the sealing shaft is provided in the above structure, the sealing through hole matched with the sealing shaft is a stepped hole, so that the structure not only needs to increase the production cost of the sealing shaft, but also makes the structure of the sealing through hole complicated, thereby increasing the cost of the product.
Disclosure of Invention
The invention aims to provide a connector of an automobile air conditioner pipeline, which has simple structure and high reliability.
The technical scheme for solving the technical problems is as follows:
the connector of the air-conditioning pipeline of the car, including the first union joint, second union joint, metal seal part, the first union joint includes the first body, first cyclic annular to sting the part, there is the first through hole to run through the first body on the first body, one end of the first cyclic annular to sting the part is fixed with first body, the first cyclic annular pierces around the orifice of the first through hole to sting the part;
the second pipe joint comprises a second body and a second annular puncturing part, wherein the second body is provided with a second through hole penetrating through the second body, one end of the second annular puncturing part is fixed with the second body, and the second annular puncturing part surrounds the hole opening of the second through hole;
the metal sealing component is positioned between the first annular puncture component and the second annular puncture component, and pressure is applied to the first body and/or the second body, so that the first annular puncture component punctures into one end of the metal sealing component to form a first sealing part between the first body and the metal sealing component, and the second annular puncture component punctures into the other end of the metal sealing component to form a second sealing part between the second body and the metal sealing component;
the first body is fixed to the second body after the first sealing portion and the second sealing portion are formed.
The connector of the air conditioner pipeline of the car, including the first union joint, second union joint, metal seal part, the first union joint includes the first body, support, there is the first through hole which runs through the first body on the first body, one end of the support is fixed with first body, the support surrounds around the drill way of the first through hole;
the second pipe joint comprises a second body and a second annular puncturing part, wherein the second body is provided with a second through hole penetrating through the second body, one end of the second annular puncturing part is fixed with the second body, and the second annular puncturing part surrounds the hole opening of the second through hole;
one end of the metal sealing component is sleeved on the support and is in interference fit with the support to form a first sealing part between the metal sealing component and the support, and pressure is applied to the first body and/or the second body to enable the second annular piercing component to pierce into the other end of the metal sealing component so as to form a second sealing part between the second body and the metal sealing component;
the first body is fixed to the second body after the first sealing portion and the second sealing portion are formed.
The connector of the automobile air-conditioning pipeline comprises a first pipe joint, a second pipe joint and a metal sealing part, wherein the first pipe joint comprises a first body, and a first through hole penetrating through the first body is formed in the first body;
the second pipe joint comprises a second body, and a second through hole penetrating through the second body is formed in the second body;
the metal sealing component comprises an annular carrier, a third annular puncturing component and a fourth annular puncturing component, wherein the third annular puncturing component is arranged at one end of the annular carrier, and the fourth annular puncturing component is arranged at the other end of the annular carrier;
one end of the metal sealing component surrounds around the orifice of the first through hole, the other end of the metal sealing component surrounds around the orifice of the second through hole, pressure is applied to the first body and/or the second body, so that a third annular puncturing component punctures into the first body to form a first sealing part between the metal sealing component and the first body, and a fourth annular puncturing component punctures into the second body to form a second sealing part between the metal sealing component and the second body;
the first body is fixed to the second body after the first sealing portion and the second sealing portion are formed.
The connector of the air conditioner pipeline of the car, including the first union joint, second union joint, metal seal part, the first union joint includes the first body, support, there is the first through hole which runs through the first body on the first body, one end of the support is fixed with first body, the support surrounds around the drill way of the first through hole;
the second pipe joint comprises a second body and a second annular puncturing part, wherein the second body is provided with a second through hole penetrating through the second body, one end of the second annular puncturing part is fixed with the second body, and the second annular puncturing part surrounds the hole opening of the second through hole;
the metal sealing component comprises an annular carrier and a fourth annular piercing component, one end of the annular carrier is sleeved on the support and is in interference fit with the support to form a first sealing part between the metal sealing component and the support, and the fourth annular piercing component is arranged at the other end of the annular carrier;
applying pressure to the first body and/or the second body to pierce the fourth annular piercing element into the second body to form a second seal between the second body and the metallic sealing element;
the first body is fixed to the second body after the first sealing portion and the second sealing portion are formed.
The invention has the advantages that the metal sealing part is respectively formed with the first pipe joint and the second pipe joint in a piercing mode or respectively formed with the first pipe joint and the second pipe joint in a piercing and interference fit mode, compared with the O-shaped sealing ring adopted in the background technology, the structure can bear higher pressure when only the sealing ring with lower hardness is selected during assembly, namely the metal sealing part cannot be damaged under the pressure of 14MPa of R744 working medium, and the sealing performance is ensured. Meanwhile, compared with the mode that the hole opening is sealed by adopting a smooth-surface metal piece in a matched mode in the background art, due to the existence of the first sealing part and the second sealing part, the sealing structure is changed, so that the sealing reliability is ensured.
Drawings
FIG. 1 is a schematic structural view of a first automotive air conditioning duct connector according to the present invention;
FIG. 2 is an exploded view of a first vehicle air conditioning duct connector according to the present invention;
FIG. 3 is a perspective view of a first type of fitting;
FIG. 4 is a cross-sectional view of a first type of fitting;
FIG. 5 is a perspective view of a first second tube fitting;
FIG. 6 is a cross-sectional view of a first second type of fitting;
FIG. 7 is a perspective view of a first metal seal component;
FIG. 8 is a schematic view of a pre-positioning feature;
FIG. 9 is a schematic view of an isolation member;
FIG. 10 is an assembly view of a second first type of fitting with a second type of metal seal member;
FIG. 11 is a schematic view of a third metal seal component;
FIG. 12 is a schematic view of a third first pipe fitting;
FIG. 13 is a schematic view of a fourth metal seal component;
FIG. 14 is a schematic view of a fourth first pipe fitting;
the reference numerals in the figures denote:
10 is a first pipe joint, 11 is a first body, 12 is a first annular piercing part, 12a is a mounting seat, 12b is a first annular bulge, 13 is a first through hole, and 14 is a support;
20 is a second pipe joint, 21 is a second body, 22 is a second annular piercing member, 23 is a second through hole, 24 is a first hole, 25 is a second hole, and 26 is a step;
30 is a metal sealing member, 31 is an annular carrier, 32 is a third annular piercing member, and 33 is a fourth annular piercing member;
40 is a pre-positioning part, 41 is a sleeve, 42 is a limiting part, and 43 is an opening
50 is the isolation part, 51 is the sleeve, 52 is the isolation pad, 53 is spacing portion.
Detailed Description
Example 1
Referring to fig. 1 to 9, a first connector for an air conditioning pipe of a vehicle according to the present invention includes a first pipe joint 10, a second pipe joint 20, and a metal sealing member 30, and each part and the relationship between the parts will be described in detail below:
the first pipe joint 10 includes a first body 11, a first annular piercing member 12, the first body 11 having a first through hole 13 formed therethrough, the first body 11 having one end of the first annular piercing member 12 fixed to the first body 11, the first annular piercing member 12 surrounding an opening of the first through hole 13.
The first annular piercing member 12 preferably has a structure in which: including mount 12a, first annular arch 12b, the one end of mount 12a is fixed with first body 11, and mount 12a encircles around the drill way of first through-hole 13, is equipped with the through-hole on the mount 12a, therefore, mount 12a encircles around the drill way of first through-hole 13. The other end of the first annular protrusion 12b, which is the free end that penetrates into the metal sealing member 30, is integrally formed with the other end of the mounting seat 12 a.
The first annular protrusion 12b is provided in plurality (two in this embodiment), the radius of any two first annular protrusions 12b is different, the center of each first annular protrusion 12b is located at the same position, and when the first annular protrusions 12b are inserted into the metal sealing member 30, each first annular protrusion 12b forms a first sealing portion with the metal sealing member 30, so that a plurality of first sealing portions can be formed by combining the plurality of first annular protrusions 12b with the metal sealing member 30.
The first annular projection 12b has a triangular cross-section, and the first annular projection 12b having such a shape can be more easily pierced into the metal seal member 30. The height of the first annular projection 12b is 1 to 3mm, and the height of the first annular projection 12b is preferably 1.5 mm.
The second pipe joint 20 includes a second body 21, a second annular piercing member 22, a second through hole 23 formed through the second body 21 is formed in the second body 21, one end of the second annular piercing member 22 is fixed to the second body 21, and the second annular piercing member 22 is wound around an opening of the second through hole 23.
Preferably, the second through hole 23 includes a first hole 24 and a second hole 25, a step 26 is formed between the first hole 24 and the second hole 25, the second annular piercing member 22 is positioned in the first hole 24, the second annular piercing member 22 has a height smaller than that of the first hole 24, and one end of the second annular piercing member 22 is coupled to the step 26 and surrounds an opening of the second hole 25.
The height of the second annular piercing member 22 is 1 to 3mm, and the height of the second annular piercing member 22 is preferably 1.5 mm. The second annular piercing member 22 protrudes from the step 26, and the second annular piercing member 22 has a triangular cross-section, so that the second annular protrusion 22 can be more easily pierced into the metal sealing member 30. The second annular piercing element 22 is formed integrally with the second body 21, i.e. the step 26 has a protrusion which is machined to form the second annular piercing element 22.
The number of the second annular piercing members 22 is plural (two in this embodiment), the radii of any two second annular piercing members 22 are different, the centers of the second annular piercing members 22 are located at the same position, and after the second annular piercing members 22 are pierced into the metal sealing member 30, one second sealing portion is formed between each second annular piercing member 22 and the metal sealing member 30, and thus, a plurality of second sealing portions can be formed by the joining of the plurality of second annular piercing members 22 and the metal sealing member 30.
The metal sealing member 30 is positioned between the first annular piercing member 12 and the second annular piercing member 22, and pressure is applied to the first body 11 and/or the second body 21 such that the first annular piercing member 12 pierces one end of the metal sealing member 30 to form a first seal between the first body 11 and the metal sealing member 30, and the second annular piercing member 22 pierces the other end of the metal sealing member 30 to form a second seal between the second body 21 and the metal sealing member 30. After the first sealing portion and the second sealing portion are formed, the first body 11 and the second body 22 are fixed, and the first body 11 and the second body 22 are preferably fixed by bolts.
The metal seal member 30 is an annular metal gasket, a plating layer is provided on the surface of the metal gasket, zinc plating is preferentially performed on the surface of the metal gasket, and the hardness of the metal seal member 30 is lower than the hardness of the first annular penetration member 12 and the second annular penetration member 22.
The above-mentioned connector further comprises a pre-positioning member 40 by which the metal seal member 30 is pre-positioned on the axial end face of the other end of the first annular piercing member 12 or the axial end face of the other end of the second annular piercing member 22 before the first body 11 and/or the second body 21 is pressurized.
The pre-positioning section 40 includes: a sleeve 41 and a stopper 42 provided on an inner wall of the sleeve 41, wherein the sleeve 41 is fitted over the metal seal member 30 and the first annular piercing member 12 or the second annular piercing member 22; the stopper portion 42 is engaged with an axial end surface of the metal seal member 30. An opening 43 extending in the axial direction of the sleeve 41 is provided on the circumferential surface of the sleeve 41.
Preferably, the metal sealing member 30 is preset on the axial end face of the other end of the first annular piercing member 12 by the preset position member 40, specifically, the metal sealing member 30 is placed on the first annular piercing member 12, one end of the metal sealing member 30 is supported by the first annular protrusion 12b, the sleeve 41 is sleeved on the mounting seat 12a, and the other end of the limiting part 42 is limited by the limiting part 42, so that the metal sealing member 30 is clamped between the first annular protrusion 12b and the limiting part 42, and the axial direction of the metal sealing member 30 is limited.
Since the first annular piercing member 12 and the metallic sealing member 30 fitted over the first annular piercing member 12 are located inside the first hole 24 during press-fitting, it is not visible from the outside whether the center of the metallic sealing member 30 is substantially aligned with the centers of the first annular piercing member 12 and the second annular piercing member 22. After the metal sealing member 30 is pre-positioned by the pre-positioning member 40, the center of the metal sealing member 30 and the center of the first annular piercing member 12 are maintained on the same line, and thus, it is ensured that the center of the metal sealing member 30 substantially corresponds to the first annular piercing member 12 and the second annular piercing member 22 during the press-fitting process, thereby ensuring the reliability of forming the first sealing part and the second sealing part at both ends of the metal sealing member 30 after the press-fitting process.
The above connector further includes a positioning spacer member 50, the positioning spacer member 50 including: the sleeve 51 is sleeved on the pre-positioning component 40 to limit the rotation of the pre-positioning component 40; the isolation pad 52 is connected to the sleeve 51, the isolation pad 52 is sandwiched between the first body 11 and the second body 21, and the isolation pad 52 isolates the first body 11 from the second body 21, so that static electricity can be prevented from being transmitted between the first body 11 and the second body 21. The spacer member 50 further includes a stopper portion 53, and one end of the stopper portion 53 is fixed to the inner wall of the sleeve 51.
The stopper portion 53 is fitted with the opening 43 on the peripheral surface of the sleeve 41 to restrict the sleeve 41 from being fitted. Preferably, the other end of the position-limiting portion 53 extends in the axial direction of the sleeve 51 and is exposed to the outside of the sleeve 51, so that the area of the position-limiting portion 53 engaged with the opening 43 can be increased.
The present embodiment may also adopt the following modifications:
the first annular penetration member 12 includes only the first annular projection 12b, the first annular projection 12b projects from the end surface of the first body 11, and similarly, the second annular penetration member 22 projects from the end surface of the second body 21.
The method for assembling the connector of the present embodiment, as shown in fig. 1 to 9, includes the steps of:
s1, placing the metal seal member 30 on the end face of the first annular piercing member 12, the metal seal member 30 being supported by the first annular piercing member 12;
s2, the sleeve 41 of the pre-positioning member 40 is fitted over the first annular piercing member 12 and the metal sealing member 30, the metal sealing member 30 is clamped between the stopper 42 and the first annular projection 12b, and the metal sealing member 30 is axially restrained by the stopper 42 and the first annular projection 12 b;
s3, the sleeve 51 of the isolation component 50 is sleeved on the sleeve 41, the limiting part 53 is clamped into the opening 43, and the isolation pad 52 is supported by the surface of the first body 11;
s4, after the second through hole 23 on the second pipe joint 20 is matched with the first annular piercing part 12, the metal sealing part 30 is abutted against the second annular piercing part 22;
s5, applying pressure to the first body 11 and/or the second body 21, so that the first annular piercing member 12 pierces into one end of the metal sealing member 30 to form a first sealing portion between the first body 11 and the metal sealing member 30, and the second annular piercing member 22 pierces into the other end of the metal sealing member 30 to form a second sealing portion between the second body 21 and the metal sealing member 30; at the same time, the insulating pad 52 is clamped to the first body 11 and/or the second body 21;
s6, the first body 11 and the second body 21 are fastened together by bolts.
Example 2
Referring to fig. 10, a third connector for an air conditioning pipe of a vehicle according to the present invention includes a first pipe joint 10, a second pipe joint 20, and a metal sealing member 30, wherein the first pipe joint 10 includes a first body 11 and a support 14, the first body 11 is provided with a first through hole 13 penetrating through the first body, one end of the support 14 is fixed to the first body 11, and the support 14 surrounds an opening of the first through hole 13;
the second tube connector 20 comprises a second body 21, a second annular piercing member 22, a second through hole 23 passing through the second body 21 is formed on the second body 21, one end of the second annular piercing member 22 is fixed to the second body 21, and the second annular piercing member 22 surrounds the opening of the second through hole 23;
one end of the metal sealing member 30 is fitted over the seat 14 and is in interference fit with the seat 14 to form a first sealing portion between the metal sealing member 30 and the seat 14, and the first body 11 and/or the second body 21 are/is pressurized to make the second annular piercing member 22 pierce into the other end of the metal sealing member 30 to form a second sealing portion between the second body 21 and the metal sealing member 30;
the first body 11 is fixed to the second body 22 after the first sealing portion and the second sealing portion are formed.
The first annular protrusion 12b may be disposed on the seat 14, and when the metal sealing component 30 is in interference fit with the seat 14, the first annular protrusion 12b penetrates into the metal sealing component 30, so that the sealing performance of the first sealing portion formed by the metal sealing component 30 and the seat 14 is more reliable.
In the present embodiment, in addition to the above structure, since the metal sealing member 30 is in interference fit with the support 14, it is not necessary to adopt the pre-positioning member 40 to pre-position the metal sealing member 30. The rest of the structure is the same as that of embodiment 1, and is not described again here.
The method of assembling the connector of the present embodiment, as shown in fig. 6 and 10, includes the steps of:
s1, sleeving one end of the metal sealing component 30 on the support 14 and performing interference fit with the support 14 to form a first sealing part between the metal sealing component 30 and the support 14;
s2, after the second through hole 23 of the second pipe joint 20 is matched with the support 14 sleeved with the metal sealing component 30, the metal sealing component 30 and the second annular piercing component 22 form a butting joint;
s3, the first body 11 and/or the second body 21 is pressed to make the second annular insert member 22 insert into the other end of the metal sealing member 30 to form a second sealing part between the second body 21 and the metal sealing member 30
S4, the first body 11 and the second body 21 are fastened together by bolts.
Example 3
Referring to fig. 11 and 12, a third connector for an air conditioning pipeline of a vehicle according to the present invention includes a first pipe joint 10, a second pipe joint 20, and a metal sealing member 30, wherein the first pipe joint 10 includes a first body 11, and the first body 11 is provided with a first through hole 13 penetrating through the first body. The second pipe joint 20 includes a second body 21, and a second through hole 23 penetrating the second body 21 is formed in the second body 21.
The metal sealing member 30 includes an annular carrier 31, a third annular piercing member 32, and a fourth annular piercing member 33, the third annular piercing member 32 being disposed at one end of the annular carrier 31, and the fourth annular piercing member 33 being disposed at the other end of the annular carrier 31.
One end of the metal sealing member 30 is circumferentially surrounded by the aperture of the first through hole 13, the other end of the metal sealing member 30 is circumferentially surrounded by the aperture of the second through hole 23, and pressure is applied to the first body 11 and/or the second body 21 to cause the third annular piercing member 32 to pierce into the first body 11 to form a first seal between the metal sealing member 30 and the first body 11, and the fourth annular piercing member 33 pierces into the second body 21 to form a second seal between the metal sealing member 30 and the second body 21. The first body 11 is fixed to the second body 22 after the first sealing portion and the second sealing portion are formed.
Further, the first pipe joint 10 further includes a support 14 disposed on the first body 11, the support 14 surrounds the opening of the first through hole 13, after the support 14 is additionally disposed on the first body 11, when assembling, the metal sealing member 30 is first placed in the first hole 24, the fourth annular piercing member 33 on the metal sealing member 30 abuts against the step on the second body 21, after the support 14 is in clearance fit with the first hole 24, the third annular piercing member 32 abuts against the support 14, and when pressure is applied, the third annular piercing member 32 pierces into the support 14 to form a first sealing portion.
The rest of the structure of this embodiment is the same as embodiment 1, and is not described herein again.
The assembling method of the connector of the embodiment comprises the following steps:
s1, fitting the metal sealing member 30 between the first body 11 and the second body 21 such that the center of the metal sealing member 30 and the centers of the first through hole 13 and the second through hole 23 are substantially aligned, wherein the third annular piercing member 32 abuts against the first body 11 and the fourth annular piercing member 33 abuts against the second body 21;
s2, applying pressure to the first body 11 and/or the second body 21, so that the third annular piercing member 32 pierces into the first body 11 to form a first seal between the metal sealing member 30 and the first body 11, and the fourth annular piercing member 33 pierces into the second body 21 to form a second seal between the metal sealing member 30 and the second body 21;
s3, the first body 11 and the second body 21 are fastened together by bolts.
Further, the preferred manner in which the metal seal member 30 is fitted between the first body 11 and the second body 21 in step S1 is: the metal sealing element 30 is placed in the first hole 24, the fourth annular piercing element 33 on the metal sealing element 30 abuts against the step on the second body 21, the third annular piercing element 32 abuts against the support 14 after the support 14 is in clearance fit with the first hole 24, and when pressure is applied, the third annular piercing element 32 pierces into the support 14 to form a first sealing portion.
Example 4
Referring to fig. 13 and 14, a fourth connector for an air conditioning pipe of a vehicle according to the present invention includes a first pipe joint 10, a second pipe joint 20, and a metal sealing member 30. The first pipe joint 10 includes a first body 11, a support 14, a first through hole 13 penetrating the first body 11 is provided on the first body 11, one end of the support 14 is fixed with the first body 11, and the support 14 surrounds an opening of the first through hole 13.
The second pipe joint 20 includes a second body 21, a second annular piercing member 22, a second through hole 23 formed through the second body 21 is formed in the second body 21, one end of the second annular piercing member 22 is fixed to the second body 21, and the second annular piercing member 22 is wound around an opening of the second through hole 23.
The metal seal member 30 includes an annular carrier 31, and a fourth annular piercing member 33, and the fourth annular piercing member 33 is provided at one end of the annular carrier 31. One end of the annular carrier 31 fits over the carrier 14 and is an interference fit with the carrier 14 to form a first seal between the metal seal component 30 and the carrier 14.
Pressure is applied to the first body 11 and/or the second body 21 to pierce the fourth annular piercing member 33 into the second body 21 to form a second seal between the second body 21 and the metallic sealing member 30. The first body 11 is fixed to the second body 22 after the first sealing portion and the second sealing portion are formed.
The first annular protrusion 12b may be disposed on the seat 14, and when the metal sealing component 30 is in interference fit with the seat 14, the first annular protrusion 12b penetrates into the metal sealing component 30, so that the sealing performance of the first sealing portion formed by the metal sealing component 30 and the seat 14 is more reliable.
In the present embodiment, in addition to the above structure, since the metal sealing member 30 is in interference fit with the support 14, it is not necessary to adopt the pre-positioning member 40 to pre-position the metal sealing member 30. The rest of the structure is the same as that of embodiment 1, and is not described again here.
The assembling method of the connector of the embodiment comprises the following steps:
s1, sleeving one end of the metal sealing component 30 on the support 14 and performing interference fit with the support 14 to form a first sealing part between the metal sealing component 30 and the support 14;
s2, after the second through hole 23 of the second pipe joint 20 is matched with the support 14 sleeved with the metal sealing component 30, the fourth annular piercing component 33 of the metal sealing component 30 is abutted against the step 26;
s3, pressing the first body 11 and/or the second body 21 to make the fourth annular piercing member 33 pierce into the second body 21 to form a second sealing portion between the second body 21 and the metal sealing member 30;
s4, the first body 11 and the second body 21 are fastened together by bolts.

Claims (10)

1. The connector of the air conditioning pipeline of the car, including the first union joint (10), the second union joint (20), the metal seal part (30), characterized by, the first union joint (10) includes the first body (11), the first cyclic annular pierces into the part (12), there is the first through hole (13) which runs through the first body (11) on the first body (11), one end of the first cyclic annular pierces into the part (12) and fixes with the first body (11), the first cyclic annular pierces into the part (12) and surrounds around the orifice of the first through hole (13);
the second pipe joint (20) comprises a second body (21) and a second annular piercing part (22), wherein a second through hole (23) penetrating through the second body (21) is formed in the second body (21), one end of the second annular piercing part (22) is fixed with the second body (21), and the second annular piercing part (22) surrounds the hole opening of the second through hole (23);
a metal sealing member (30) is positioned between the first annular piercing member (12) and the second annular piercing member (22), and pressure is applied to the first body (11) and/or the second body (21) so that the first annular piercing member (12) pierces one end of the metal sealing member (30) to form a first sealing portion between the first body (11) and the metal sealing member (30), and the second annular piercing member (22) pierces the other end of the metal sealing member (30) to form a second sealing portion between the second body (21) and the metal sealing member (30);
the first body (11) and the second body (22) are fixed after the first seal portion and the second seal portion are formed.
2. Connector of an air conditioning pipe of a vehicle according to claim 1, further comprising a pre-positioning member (40), wherein the metal sealing member (30) is pre-positioned on an axial end face of the other end of the first annular piercing member (12) or an axial end face of the other end of the second annular piercing member (22) by the pre-positioning member (40) before the first body (11) and/or the second body (21) is pressurized.
3. Connector for vehicle air-conditioning lines according to claim 2, characterised in that the pre-positioning means (40) comprise:
a sleeve (41), wherein the sleeve (41) is sleeved on the metal sealing component (30) and the first annular puncture component (12) or the second annular puncture component (22);
and a limiting part (42) arranged on the inner wall of the sleeve (41), wherein the limiting part (42) is matched with the axial end face of the metal sealing part (30).
4. A connector for air conditioning pipe of vehicle as claimed in claim 3, wherein the sleeve (41) is provided with an opening (43) on its circumferential surface extending in the axial direction of the sleeve (41).
5. The connector of air conditioning pipe of automobile as claimed in any one of claims 2 to 4, further comprising a positioning and isolating member (50), wherein the positioning and isolating member (50) comprises:
the sleeve (51), the sleeve (51) is fitted on the pre-positioning part (40) to limit the pre-positioning part (40) to rotate;
an insulating pad (52), the insulating pad (52) being connected to the sleeve (51), the insulating pad (52) being sandwiched between the first body (11) and the second body (21).
6. The connector for air conditioning pipe of vehicle as claimed in claim 5, wherein the spacer member (50) further comprises a stopper portion (53), and one end of the stopper portion (53) is fixed to the inner wall of the sleeve (51).
7. A connector for air conditioning piping of a vehicle according to any of claims 1 to 4, wherein the first annular piercing member comprises:
the mounting seat (12a), one end of the mounting seat (12a) is fixed with the first body (11), and the mounting seat (12a) surrounds the hole opening of the first through hole (13);
and the other end of the first annular bulge (12b) is integrally formed with the other end of the mounting seat (12a), and the other end of the first annular bulge (12b) is a free end which penetrates into the metal sealing part (30).
8. The connector of the automobile air conditioner pipeline comprises a first pipe joint (10), a second pipe joint (20) and a metal sealing part (30), and is characterized in that the first pipe joint (10) comprises a first body (11) and a support (14), a first through hole (13) penetrating through the first body is formed in the first body (11), one end of the support (14) is fixed with the first body (11), and the support (14) surrounds the hole opening of the first through hole (13);
the second pipe joint (20) comprises a second body (21) and a second annular piercing part (22), wherein a second through hole (23) penetrating through the second body (21) is formed in the second body (21), one end of the second annular piercing part (22) is fixed with the second body (21), and the second annular piercing part (22) surrounds the hole opening of the second through hole (23);
one end of the metal sealing component (30) is sleeved on the support (14) and is in interference fit with the support (14) to form a first sealing part between the metal sealing component (30) and the support (14), and pressure is applied to the first body (11) and/or the second body (21) to enable the second annular piercing component (22) to pierce into the other end of the metal sealing component (30) to form a second sealing part between the second body (21) and the metal sealing component (30);
the first body (11) and the second body (22) are fixed after the first seal portion and the second seal portion are formed.
9. The connector of the automobile air-conditioning pipeline comprises a first pipe joint (10), a second pipe joint (20) and a metal sealing component (30), and is characterized in that the first pipe joint (10) comprises a first body (11), and a first through hole (13) penetrating through the first body is formed in the first body (11);
the second pipe joint (20) comprises a second body (21), and a second through hole (23) penetrating through the second body (21) is formed in the second body (21);
the metal sealing component (30) comprises an annular carrier (31), a third annular piercing component (32) and a fourth annular piercing component (33), wherein the third annular piercing component (32) is arranged at one end of the annular carrier (31), and the fourth annular piercing component (33) is arranged at the other end of the annular carrier (31);
one end of the metal sealing component (30) surrounds around the opening of the first through hole (13), the other end of the metal sealing component (30) surrounds around the opening of the second through hole (23), pressure is applied to the first body (11) and/or the second body (21), a third annular piercing component (32) is pierced into the first body (11) to form a first sealing part between the metal sealing component (30) and the first body (11), and a fourth annular piercing component (33) is pierced into the second body (21) to form a second sealing part between the metal sealing component (30) and the second body (21);
the first body (11) and the second body (22) are fixed after the first seal portion and the second seal portion are formed.
10. The connector of the automobile air conditioner pipeline comprises a first pipe joint (10), a second pipe joint (20) and a metal sealing part (30), and is characterized in that the first pipe joint (10) comprises a first body (11) and a support (14), a first through hole (13) penetrating through the first body is formed in the first body (11), one end of the support (14) is fixed with the first body (11), and the support (14) surrounds the hole opening of the first through hole (13);
the second pipe joint (20) comprises a second body (21) and a second annular piercing part (22), wherein a second through hole (23) penetrating through the second body (21) is formed in the second body (21), one end of the second annular piercing part (22) is fixed with the second body (21), and the second annular piercing part (22) surrounds the hole opening of the second through hole (23);
the metal sealing component (30) comprises an annular carrier (31) and a fourth annular piercing component (33), one end of the annular carrier (31) is sleeved on the support (14) and is in interference fit with the support (14) to form a first sealing part between the metal sealing component (30) and the support (14), and the fourth annular piercing component (33) is arranged at the other end of the annular carrier (31);
applying pressure to the first body (11) and/or the second body (21) to cause the fourth annular penetration member (33) to penetrate into the second body (21) to form a second seal between the second body (21) and the metal seal member (30);
the first body (11) and the second body (22) are fixed after the first seal portion and the second seal portion are formed.
CN202010116150.4A 2020-02-25 2020-02-25 Connector of automobile air conditioner pipeline Active CN111271532B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010116150.4A CN111271532B (en) 2020-02-25 2020-02-25 Connector of automobile air conditioner pipeline

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CN202010116150.4A CN111271532B (en) 2020-02-25 2020-02-25 Connector of automobile air conditioner pipeline

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110214755A1 (en) * 2010-03-05 2011-09-08 Visteon Global Technologies, Inc. Double metal seal fitting
CN202860213U (en) * 2012-10-16 2013-04-10 绍兴市承天电器有限公司 Cooling water sand collection bag for water cooling high-frequency power supply
CN106907538A (en) * 2017-04-06 2017-06-30 珠海格力电器股份有限公司 Pipe joint arrangement and motorcar air conditioner
CN109990162A (en) * 2019-03-28 2019-07-09 格力电器（合肥）有限公司 Self-sealing nut and air conditioner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110214755A1 (en) * 2010-03-05 2011-09-08 Visteon Global Technologies, Inc. Double metal seal fitting
CN202860213U (en) * 2012-10-16 2013-04-10 绍兴市承天电器有限公司 Cooling water sand collection bag for water cooling high-frequency power supply
CN106907538A (en) * 2017-04-06 2017-06-30 珠海格力电器股份有限公司 Pipe joint arrangement and motorcar air conditioner
CN109990162A (en) * 2019-03-28 2019-07-09 格力电器（合肥）有限公司 Self-sealing nut and air conditioner

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