CN111594683A - Carbon dioxide automobile air conditioner high-pressure pipeline - Google Patents
Carbon dioxide automobile air conditioner high-pressure pipeline Download PDFInfo
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- CN111594683A CN111594683A CN202010326914.2A CN202010326914A CN111594683A CN 111594683 A CN111594683 A CN 111594683A CN 202010326914 A CN202010326914 A CN 202010326914A CN 111594683 A CN111594683 A CN 111594683A
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- Prior art keywords
- pipe
- rubber
- air conditioner
- carbon dioxide
- pressure pipeline
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 42
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 42
- 229920001971 elastomer Polymers 0.000 claims abstract description 106
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 59
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 59
- 241001330002 Bambuseae Species 0.000 claims abstract description 59
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 59
- 239000011425 bamboo Substances 0.000 claims abstract description 59
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 37
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 24
- 239000010410 layer Substances 0.000 claims description 56
- 239000003292 glue Substances 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 238000003780 insertion Methods 0.000 claims description 14
- 230000037431 insertion Effects 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 239000010963 304 stainless steel Substances 0.000 claims description 10
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 10
- 239000012790 adhesive layer Substances 0.000 claims description 9
- 229920006168 hydrated nitrile rubber Polymers 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 229920006228 ethylene acrylate copolymer Polymers 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 30
- 238000001125 extrusion Methods 0.000 abstract description 10
- 230000035699 permeability Effects 0.000 abstract description 5
- 238000004880 explosion Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 description 7
- 238000004378 air conditioning Methods 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 230000006353 environmental stress Effects 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010073 coating (rubber) Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
Classifications
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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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses
- F16L33/20—Undivided rings, sleeves, or like members contracted on the hose or expanded inside the hose by means of tools; Arrangements using such members
- F16L33/207—Undivided rings, sleeves, or like members contracted on the hose or expanded inside the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose
- F16L33/2071—Undivided rings, sleeves, or like members contracted on the hose or expanded inside the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member
-
- 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
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/10—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements not embedded in the wall
-
- 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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses
- F16L33/18—Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses characterised by the use of additional sealing means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a carbon dioxide automobile air conditioner high-pressure pipeline, which relates to the technical field of automobile air conditioner pipelines and adopts the technical scheme that the carbon dioxide automobile air conditioner high-pressure pipeline comprises a rubber pipe connector and an aluminum alloy pipe which is fixedly spliced with the rubber pipe connector; a bamboo joint connector inserted into the aluminum alloy pipe is arranged at one end of the rubber pipe connector, the aluminum alloy pipe is sleeved with an aluminum pipe sleeve with an L-shaped section, and one end of the aluminum pipe sleeve, which is close to the rubber pipe connector, is abutted to the bamboo joint connector; the other end of the rubber tube connector is inserted with a metal corrugated inner tube. The invention has the function of remarkably improving the extrusion deformation and the explosion resistance of the high-pressure pipeline through the aluminum alloy pipe, thereby effectively prolonging the service life of the high-pressure pipeline; and the high-pressure pipeline of the carbon dioxide automobile air conditioner has the effects of high pressure resistance, high temperature resistance, low permeability, oil resistance and long service life.
Description
Technical Field
The invention relates to the technical field of automobile air conditioner pipelines, in particular to a carbon dioxide automobile air conditioner high-pressure pipeline.
Background
The connecting rubber tube of the carbon dioxide automobile air conditioning system must meet the requirements of 17Ma working pressure, over 34Mpa burst pressure, 180 ℃ cabin environment and penetration requirement of not more than 0.1 g/year. Therefore, the connecting rubber tube of the carbon dioxide automobile air conditioning system has good protection characteristic on the environment, and the damage of the traditional refrigerant to the atmospheric ozone layer is effectively reduced.
Chinese patent No. CN209054217U discloses an automobile air conditioner rubber hose end crimping structure, which includes a rubber hose sleeve, an inner insertion joint and a steel bushing, wherein the inner wall of the rubber hose sleeve is a steel skeleton layer, and the outer diameter of one end of the rubber hose sleeve is larger than that of the other end; the outer diameter of one end of the inner inserting joint is larger than that of the other end, and the small-diameter end of the inner inserting joint is inserted into the end with the smaller outer diameter of the rubber pipe sleeve; the steel sleeve is provided with a step hole matched with the outer wall of the rubber pipe sleeve, and the steel sleeve is buckled and pressed on the outer wall of the rubber pipe sleeve.
However, the end fastening structure of the automotive air conditioner rubber pipe only consists of the rubber pipe sleeve, the inner inserting joint and the steel sleeve which are connected with each other, the requirement on the safety performance of the air conditioner exhaust pipe is difficult to meet, the extrusion deformation resistance, the leakage resistance and the high temperature resistance are poor, and the service life of the automobile air conditioner exhaust pipe is further shortened due to the influences of high temperature and high pressure and the penetration of a refrigerant when the automobile air conditioner exhaust pipe is used, so that the refrigerant overflows and destroys the atmospheric ozone layer, and the improvement is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a carbon dioxide automobile air conditioner high-pressure pipeline which has the effects of high pressure resistance, high temperature resistance, low permeability, oil resistance and long service life.
In order to achieve the purpose, the invention provides the following technical scheme:
a carbon dioxide automobile air conditioner high-pressure pipeline comprises a rubber pipe connector and an aluminum alloy pipe which is fixedly inserted into the rubber pipe connector;
a bamboo joint connector inserted into the aluminum alloy pipe is arranged at one end of the rubber pipe connector, the aluminum alloy pipe is sleeved with an aluminum pipe sleeve with an L-shaped section, and one end of the aluminum pipe sleeve, which is close to the rubber pipe connector, is abutted to the bamboo joint connector;
the other end of the rubber tube connector is provided with a metal corrugated inner tube.
By adopting the technical scheme, the aluminum pipe is sleeved on the aluminum alloy pipe and is abutted against the bamboo joint, so that the problem that the aluminum alloy pipe is separated from the bamboo joint is effectively avoided and solved, and the effect of improving the connection and fixation stability of the aluminum alloy pipe and the bamboo joint is further achieved; the aluminum alloy pipe has the effects of remarkably improving the extrusion deformation and the explosion resistance of the high-pressure pipeline, so that the service life of the high-pressure pipeline is effectively prolonged; meanwhile, the two ends of the outer rubber layer are respectively spliced and fixed by the bamboo joint connector and the corresponding end of the metal corrugated inner pipe, so that when the bamboo joint connector is connected with an air conditioning system assembly pipe, the metal corrugated inner pipe plays a role in remarkably improving the leakage resistance and the high temperature resistance of the high-pressure pipeline of the carbon dioxide automobile air conditioner, and the high-pressure pipeline of the carbon dioxide automobile air conditioner has the effects of high pressure resistance, high temperature resistance, low permeability, oil resistance and long service life.
The invention is further configured to: one end of the bamboo joint connector is provided with an inserting end inserted into the inner side of the corresponding end of the outer sleeve glue layer, and the peripheral side wall of the inserting end is matched with the inner side wall of the corresponding part of the outer sleeve glue layer;
the metal corrugated inner pipe is provided with a corrugated pipe section and an inserting pipe section, the inserting pipe section is inserted into the inserting end, and the inner side wall of the corresponding part of the outer coating glue layer is provided with a corrugated matching part matched with the peripheral side wall of the corrugated pipe section.
Through adopting above-mentioned technical scheme, ripple matching portion and the peripheral lateral wall accordant connection of bellows section, and then play and show the effect that promotes the fixed stability of being connected of bellows section and overcoat glue film, effectively prolong this carbon dioxide vehicle air conditioner high pressure line's life.
The invention is further configured to: a plurality of fixed inserting rings which are arranged at equal intervals are arranged on the peripheral side wall of the inserting end, a fixed matching part matched with the fixed inserting rings is arranged on the inner side of the outer sleeve glue layer, and a connecting slot matched with the inserting pipe section is arranged at the corresponding end of the inserting end; one end of the corrugated pipe section connected with the inserting pipe section is abutted against the corresponding end of the inserting end.
By adopting the technical scheme, the fixed inserting ring is matched with the fixed matching part, so that the effect of remarkably improving the connection and fixation stability between the inserting end and the outer sleeve glue layer is achieved, and the service life of the high-pressure pipeline of the carbon dioxide automobile air conditioner is further prolonged; and the bamboo joint connector is inserted into one end of the outer rubber layer and is abutted against one end of the metal corrugated inner tube inserted into the outer rubber layer, so that the connection fixing stability of the bamboo joint connector, the metal corrugated inner tube and the outer rubber layer is improved, and the carbon dioxide automobile air conditioner high-pressure pipeline has the effect of long service life.
The invention is further configured to: the outer adhesive layer sequentially comprises an inner adhesive layer, a steel wire woven reinforcing layer and an outer adhesive layer from inside to outside.
Through adopting above-mentioned technical scheme, outer glue film and interior glue film play the effect of being connected with this carbon dioxide vehicle air conditioner high pressure line of protection, and the steel wire is woven the enhancement layer and is played the withstand voltage performance and the anti elongation performance's that show this carbon dioxide vehicle air conditioner high pressure line effect that promotes.
The invention is further configured to: the inner rubber layer and the outer rubber layer are both made of AEM rubber; the bamboo joint connector and the steel wire braided reinforcing layer are both made of 304 stainless steel.
By adopting the technical scheme, the inner rubber layer and the outer rubber layer made of AEM rubber have the effect of remarkably improving the environmental stress cracking resistance of the outer rubber layer, and the high temperature resistance reaches 300 degrees, so that the carbon dioxide automobile air conditioner high-pressure pipeline has the effects of high temperature resistance and long service life; and the bamboo joint made of 304 stainless steel and the steel wire woven reinforcing layer have the function of remarkably improving the anti-extrusion deformation capacity, so that the carbon dioxide automobile air conditioner high-pressure pipeline has the effects of high pressure resistance and long service life.
The invention is further configured to: the cross sections of the fixed matching part and the fixed inserting ring are isosceles trapezoids.
Through adopting above-mentioned technical scheme, the cross-section is isosceles trapezoid's fixed matching portion and fixed inserting ring be accordant connection each other, and then is showing the connection structure stability who promotes between bamboo joint and the overcoat glue film.
The invention is further configured to: at least one sealing ring groove is formed in the side wall of the periphery of the bamboo joint connector, and a sealing ring located between the bamboo joint connector and the aluminum alloy pipe is arranged in the sealing ring groove.
Through adopting above-mentioned technical scheme, the sealing washer is fixed in the seal ring inslot, and then effectively promotes the fixed stability of sealing washer to play through the sealing washer that is located between bamboo joint and the aluminum alloy pipe and showing the sealing performance who promotes between bamboo joint and the aluminum alloy pipe, under the extrusion fixed action that combines metal sleeve again, thereby make this high-pressure line have the effect of high leakproofness.
The invention is further configured to: the rubber tube connector is sleeved with a rubber tube sleeve with an L-shaped section, and one end of the rubber tube sleeve close to the aluminum alloy tube is abutted to the bamboo joint connector.
By adopting the technical scheme, the rubber tube is sleeved on the rubber tube connector and is abutted against the bamboo joint connector, so that the connection and fixation stability of the rubber tube connector and the bamboo joint connector is remarkably improved, the service life of the high-pressure pipeline is effectively prolonged, the burst pressure of the high-pressure pipeline is improved, and the leakage rate of the rubber tube connector is reduced.
The invention is further configured to: be provided with the grafting annular on the periphery lateral wall that the bamboo joint connects, the aluminum pipe sleeve pipe with the corresponding one end of rubber tube sleeve pipe is all pegged graft in the grafting annular and mutual butt, the sheathed tube inboard of aluminum pipe with the lateral wall butt of aluminum alloy tube, the sheathed tube inboard of rubber tube with the lateral wall butt of rubber tube connector.
By adopting the technical scheme, the corresponding ends of the aluminum pipe sleeve and the rubber pipe sleeve are inserted into the insertion ring grooves, so that the aims of further improving the connection and fixation stability of the aluminum alloy pipe and the bamboo joint connector and the connection and fixation stability of the rubber pipe connector and the bamboo joint connector are fulfilled.
The invention is further configured to: the aluminum pipe sleeve and the rubber pipe sleeve are both made of metal, and the sealing ring is an HNBR rubber sealing ring.
By adopting the technical scheme, the aluminum pipe sleeve and the rubber pipe sleeve made of 304 stainless steel have good deformation resistance, so that the high-pressure pipeline has the characteristics of strong durability and difficult failure, the structural stability of the high-pressure pipeline is obviously improved, and the service life of the high-pressure pipeline is effectively prolonged; meanwhile, the HNBR rubber sealing ring plays a role in remarkably improving the leakage resistance and the fatigue stability of the high-pressure pipeline.
In conclusion, the invention has the following beneficial effects: in the operation process of an air conditioning system, the carbon dioxide automobile air conditioner high-pressure pipeline transports refrigerant carbon dioxide from a compressor to a gas cooler, and the environmental stress cracking resistance of an outer rubber layer is obviously improved through an inner rubber layer and an outer rubber layer which are made of AEM rubber; the extrusion deformation resistance is obviously improved through the bamboo joint made of 304 stainless steel and the steel wire woven reinforcing layer; the bamboo joint connector and the metal corrugated inner pipe are arranged in the outer rubber layer, and the ends of the bamboo joint connector and the metal corrugated inner pipe are mutually abutted, so that the metal corrugated inner pipe has the effect of remarkably improving the leakage resistance and the high temperature resistance of the carbon dioxide automobile air conditioner high-pressure rubber pipe; the aluminum alloy pipe is used as an assembly pipe for buckling and pressing, so that the aluminum alloy pipe has good extrusion deformation capability and higher explosion resistance; the aluminum pipe sleeve and the rubber pipe sleeve made of 304 stainless steel have good deformation resistance, and have the effects of strong durability and difficult failure after buckling; the HNBR rubber sealing ring obviously improves the leakage resistance and the fatigue stability of the buckling structure; and the high-pressure rubber pipe of the automobile air conditioner has good pressure resistance and low permeability through the arrangement of the corrugated inner pipe, so that the buckling structure meets the requirement of the safety performance of the air conditioner exhaust pipe.
Drawings
FIG. 1 is a schematic structural view of a hose connector according to the present embodiment;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a schematic structural diagram of the high-pressure pipeline structure of the air conditioner of the present embodiment;
fig. 4 is an enlarged schematic structural view of a portion B in fig. 3.
Description of reference numerals: 1. a bamboo joint; 11. a plug end; 111. connecting the slots; 112. fixing the insert ring; 12. sealing the ring groove; 13. inserting ring grooves; 2. coating a glue layer outside; 21. an outer adhesive layer; 22. weaving a steel wire into a reinforcing layer; 23. an inner glue layer; 231. a fixed matching section; 232. a ripple matching section; 3. a metal corrugated inner tube; 31. a bellows section; 32. a pipe section is plugged; 4. a rubber tube sleeve; 41. the rubber tube is inserted into the ring; 5. an aluminum pipe sleeve; 51. an aluminum pipe insertion ring; 6. a seal ring; 7. an aluminum alloy pipe.
Detailed Description
In order to make the technical solution and advantages of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in figure 1, the high-pressure pipeline of the carbon dioxide automobile air conditioner comprises a rubber pipe connector. The rubber tube connector comprises an outer rubber layer 2, and a bamboo joint connector 1 and a metal corrugated inner tube 3 which are respectively inserted into the inner sides of two ends of the outer rubber layer 2. The two ends of the outer rubber layer 2 are respectively spliced and fixed by the bamboo joint connector 1 and the corresponding end of the metal corrugated inner tube 3, and then when the bamboo joint connector 1 is connected with an air conditioning system assembly pipe, the metal corrugated inner tube 3 plays a role in remarkably improving the anti-leakage performance and the high-temperature resistance of the high-pressure pipeline of the carbon dioxide automobile air conditioner, so that the high-pressure pipeline of the carbon dioxide automobile air conditioner has the effects of high pressure resistance, high temperature resistance, low permeability, oil resistance and long service life.
The outer rubber layer 2 includes an inner rubber layer 23, a steel wire woven reinforcement layer 22, and an outer rubber layer 21 in sequence from inside to outside. The outer rubber layer 21 and the inner rubber layer 23 play a role in connecting and protecting the carbon dioxide automobile air conditioner high-pressure pipeline, and the steel wire woven reinforcing layer 22 plays a role in remarkably improving the pressure resistance and the elongation resistance of the carbon dioxide automobile air conditioner high-pressure pipeline. Meanwhile, the inner rubber layer 23 and the outer rubber layer 21 are both made of AEM rubber, so that the inner rubber layer 23 and the outer rubber layer 21 made of the AEM rubber have the effect of remarkably improving the environmental stress cracking resistance of the outer rubber layer 2, the high temperature resistance reaches 300 degrees, and the carbon dioxide automobile air conditioner high-pressure pipeline has the effects of high temperature resistance and long service life. The bamboo joint connector 1 and the steel wire woven reinforcing layer 22 are both made of 304 stainless steel, so that the bamboo joint connector 1 made of 304 stainless steel and the steel wire woven reinforcing layer 22 have the effect of remarkably improving the anti-extrusion deformation capacity, and the carbon dioxide automobile air conditioner high-pressure pipeline has the effects of high pressure resistance and long service life.
As shown in fig. 1 and 2, one end of the bamboo joint connector 1 is provided with an insertion end 11 inserted into the inner side of the corresponding end of the outer rubber layer 2. The peripheral side wall of the inserting end 11 is matched with the inner side wall of the corresponding part of the outer sheath glue layer 2. It should be noted that the outer peripheral wall of the insertion end 11 is provided with a plurality of fixed insertion rings 112 arranged at equal intervals. And a fixing matching part 231 matched with the fixing insert ring 112 is arranged on the inner side of the outer rubber casing layer 2. The fixed inserting ring 112 is matched with the fixed matching part 231, so that the effect of remarkably improving the connection and fixation stability between the inserting end 11 and the outer sleeve glue layer 2 is achieved, and the service life of the high-pressure pipeline of the carbon dioxide automobile air conditioner is further prolonged. The cross-sections of the fixing matching portion 231 and the fixing insert ring 112 may be isosceles trapezoid, triangle, rectangle, etc. Fixed matching portion 231 is isosceles trapezoid with the fixed cross-section of inserting ring 112 in this embodiment, and then when the cross-section was isosceles trapezoid's fixed matching portion 231 and fixed inserting ring 112 mutual accordant connection, will play and show the effect that promotes the connection structure stability between bamboo joint 1 and the overcoat glue film 2.
As shown in fig. 2, a connection socket 111 is provided at a corresponding end of the insertion end 11 to mate with the insertion tube section 32. The corrugated metal inner pipe 3 is provided with a corrugated pipe section 31 and a splicing pipe section 32. The plug-in pipe section 32 is plugged into the connection socket 111 of the plug-in end 11. And a corrugated matching part 232 matched with the peripheral side wall of the corrugated pipe section 31 is arranged on the inner side wall of the corresponding part of the outer rubber coating layer 2. Consequently, through ripple matching portion 232 and the peripheral lateral wall accordant connection of bellows section 31, and then play and show the effect that promotes the fixed stability of being connected of bellows section 31 and overcoat glue film 2, effectively prolong this carbon dioxide vehicle air conditioner high pressure line's life. What need mention is that, the one end that corrugated pipe section 31 and grafting pipe section 32 are connected is held with the corresponding one end butt of grafting end 11, and then will play the effect that promotes the fixed stability of being connected of bamboo joint 1, metal ripple inner tube 3 and overcoat glue film 2 when the one end that the bamboo joint connects 1 and inserts in overcoat glue film 2 and the one end butt that metal ripple inner tube 3 inserted in overcoat glue film 2 for this carbon dioxide vehicle air conditioner high pressure line has long service life's effect.
As shown in figure 3, an aluminum alloy pipe 7 is fixedly inserted on the bamboo joint connector 1 of the rubber pipe connector. And an aluminum pipe sleeve 5 with an L-shaped section is sleeved on the aluminum alloy pipe 7. The aluminum alloy pipe 7 has the effect of remarkably improving the extrusion deformation and the explosion resistance of the high-pressure pipeline, so that the service life of the high-pressure pipeline is effectively prolonged. It should be noted that one end of the aluminum pipe sleeve 5, which is close to the rubber pipe connector, abuts against the bamboo joint connector 1, so that the problem that the aluminum alloy pipe 7 is separated from the bamboo joint connector 1 is effectively avoided and solved, and the effect of improving the connection fixing stability of the aluminum alloy pipe 7 and the bamboo joint connector 1 is achieved.
It should be mentioned that at least one sealing ring groove 12 is provided on the outer circumferential side wall of the bamboo joint 1. In the embodiment, two sealing ring grooves 12 are arranged, and the sealing rings 6 between the bamboo joint 1 and the aluminum alloy pipe 7 are arranged in the sealing ring grooves 12. The seal ring 6 is an HNBR rubber seal ring 6, so that the HNBR rubber seal ring 6 plays a role in remarkably improving the leakage resistance and the fatigue stability of the high-pressure pipeline. And through fixing HNBR rubber seal 6 in seal ring groove 12, and then effectively promote HNBR rubber seal 6's fixed stability to play through the HNBR rubber seal 6 that is located between bamboo joint 1 and the aluminum alloy pipe 7 and show the leakproofness that promotes between bamboo joint 1 and the aluminum alloy pipe 7, under the extrusion fixed action that combines metal sleeve again, thereby make this high pressure pipeline have the stable effect in utilization.
Meanwhile, the rubber tube connector is sleeved with a rubber tube sleeve 4 with an L-shaped section. And the one end that rubber tube sleeve pipe 4 is close to aluminum alloy tube 7 connects 1 butt with the bamboo joint, and then realizes showing the fixed stability of being connected of promotion rubber tube connector and bamboo joint 1 to effectively prolong this high-pressure line's life's effect.
The aluminum pipe sleeve 5 and the rubber pipe sleeve 4 are both made of 304 stainless steel. Therefore, the aluminum pipe sleeve 5 and the rubber pipe sleeve 4 made of 304 stainless steel have good deformation resistance strength, and further have the characteristics of strong durability and difficult failure in the high-pressure pipeline, so that the structural stability of the high-pressure pipeline is remarkably improved, and the service life of the high-pressure pipeline is effectively prolonged.
As shown in fig. 3 and 4, the bamboo joint 1 has an insertion ring groove 13 on its outer circumferential side wall. The corresponding ends of the aluminum pipe sleeve 5 and the rubber pipe sleeve 4 are inserted in the insertion ring groove 13 and are mutually abutted. The inner side of the aluminum pipe sleeve 5 is abutted against the outer side wall of the aluminum alloy pipe 7, and the inner side of the rubber pipe sleeve 4 is abutted against the outer side wall of the rubber pipe connector. Therefore, when the corresponding ends of the aluminum pipe sleeve 5 and the rubber pipe sleeve 4 are inserted into the insertion ring grooves 13, the purpose of further improving the connection and fixation stability of the aluminum alloy pipe 7 and the bamboo joint connector 1 and the connection and fixation stability of the rubber pipe connector and the bamboo joint connector 1 can be achieved.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment, but all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the present invention may occur to those skilled in the art without departing from the principle of the present invention, and such modifications and embellishments should also be considered as within the scope of the present invention.
Claims (10)
1. The utility model provides a carbon dioxide vehicle air conditioner high pressure line which characterized in that: comprises a rubber tube connector and an aluminum alloy tube (7) which is fixedly spliced with the rubber tube connector;
one end of the rubber tube connector is provided with a bamboo joint connector (1) inserted into the aluminum alloy tube (7), the aluminum alloy tube (7) is sleeved with an aluminum tube sleeve (5) with an L-shaped section, and one end, close to the rubber tube connector, of the aluminum tube sleeve (5) is abutted to the bamboo joint connector (1);
the other end of the rubber tube connector is inserted with a metal corrugated inner tube (3).
2. The carbon dioxide automobile air conditioner high-pressure pipeline as claimed in claim 1, characterized in that: one end of the bamboo joint connector (1) is provided with an inserting end (11) inserted into the inner side of the corresponding end of the outer sleeve glue layer (2), and the peripheral side wall of the inserting end (11) is matched with the inner side wall of the corresponding part of the outer sleeve glue layer (2);
the corrugated metal pipe is characterized in that a corrugated pipe section (31) and an insertion pipe section (32) are arranged on the corrugated metal pipe (3), the insertion pipe section (32) is inserted into the insertion end (11), and a corrugated matching portion (232) matched with the peripheral side wall of the corrugated pipe section (31) is arranged on the inner side wall of the corresponding portion of the outer adhesive layer (2).
3. The carbon dioxide automobile air conditioner high-pressure pipeline as claimed in claim 2, characterized in that: a plurality of fixed inserting rings (112) which are arranged at equal intervals are arranged on the peripheral side wall of the inserting end (11), a fixed matching part (231) matched with the fixed inserting rings (112) is arranged on the inner side of the outer adhesive layer (2), and a connecting slot (111) matched with the inserting pipe section (32) is arranged at the corresponding end of the inserting end (11); one end of the corrugated pipe section (31) connected with the plug pipe section (32) is abutted against the corresponding end of the plug end (11).
4. The carbon dioxide automobile air conditioner high-pressure pipeline according to any one of claims 1 to 3, characterized in that: the outer adhesive layer (2) sequentially comprises an inner adhesive layer (23), a steel wire woven reinforced layer (22) and an outer adhesive layer (21) from inside to outside.
5. The carbon dioxide automobile air conditioner high-pressure pipeline as claimed in claim 4, characterized in that: the inner rubber layer (23) and the outer rubber layer (21) are both made of AEM rubber; the bamboo joint connector (1) and the steel wire braided reinforcing layer (22) are both made of 304 stainless steel.
6. The carbon dioxide automobile air conditioner high-pressure pipeline as claimed in claim 5, characterized in that: the cross sections of the fixed matching part (231) and the fixed insert ring (112) are isosceles trapezoids.
7. The carbon dioxide automobile air conditioner high-pressure pipeline as claimed in claim 1, characterized in that: be provided with at least one sealed annular (12) on the periphery lateral wall of bamboo joint (1), be provided with in sealed annular (12) and be located bamboo joint (1) with sealing washer (6) between aluminum alloy pipe (7).
8. The carbon dioxide automobile air conditioner high-pressure pipeline as claimed in claim 7, characterized in that: the rubber tube connector is sleeved with a rubber tube sleeve (4) with an L-shaped section, the rubber tube sleeve (4) is close to one end of the aluminum alloy tube (7) and the bamboo joint connector (1) is abutted.
9. The carbon dioxide automobile air conditioner high-pressure pipeline as claimed in claim 8, characterized in that: be provided with grafting annular (13) on the periphery lateral wall of bamboo joint (1), aluminum pipe sleeve pipe (5) with the corresponding one end of rubber tube sleeve pipe (4) is all pegged graft and is in grafting annular (13) and mutual butt, the inboard of aluminum pipe sleeve pipe (5) with the lateral wall butt of aluminum alloy pipe (7), the inboard of rubber tube sleeve pipe (4) with the lateral wall butt of rubber tube connector.
10. The carbon dioxide automobile air conditioner high-pressure pipeline of claim 9, characterized in that: the aluminum pipe sleeve (5) and the rubber pipe sleeve (4) are both made of metal, and the sealing ring (6) is an HNBR rubber sealing ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010326914.2A CN111594683A (en) | 2020-04-23 | 2020-04-23 | Carbon dioxide automobile air conditioner high-pressure pipeline |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010326914.2A CN111594683A (en) | 2020-04-23 | 2020-04-23 | Carbon dioxide automobile air conditioner high-pressure pipeline |
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| CN111594683A true CN111594683A (en) | 2020-08-28 |
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| CN202010326914.2A Pending CN111594683A (en) | 2020-04-23 | 2020-04-23 | Carbon dioxide automobile air conditioner high-pressure pipeline |
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| CN114526383A (en) * | 2022-02-28 | 2022-05-24 | 浙江百纳橡塑设备有限公司 | Refrigerant conveying pipe of air conditioner for vehicle |
| CN115807887A (en) * | 2022-11-18 | 2023-03-17 | 南京利德东方橡塑科技有限公司 | A connection structure and preparation method of an R744 air-conditioning hose end joint |
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