WO2020011239A1 - 管路连接结构 - Google Patents

管路连接结构 Download PDF

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Publication number
WO2020011239A1
WO2020011239A1 PCT/CN2019/095645 CN2019095645W WO2020011239A1 WO 2020011239 A1 WO2020011239 A1 WO 2020011239A1 CN 2019095645 W CN2019095645 W CN 2019095645W WO 2020011239 A1 WO2020011239 A1 WO 2020011239A1
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WO
WIPO (PCT)
Prior art keywords
groove
channel
connection block
positioning
hole
Prior art date
Application number
PCT/CN2019/095645
Other languages
English (en)
French (fr)
Inventor
王美
李理
董军启
Original Assignee
杭州三花研究院有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201810759405.1A external-priority patent/CN110715128B/zh
Priority claimed from CN201810758683.5A external-priority patent/CN110715127B/zh
Priority claimed from CN201810758681.6A external-priority patent/CN110715133B/zh
Application filed by 杭州三花研究院有限公司 filed Critical 杭州三花研究院有限公司
Publication of WO2020011239A1 publication Critical patent/WO2020011239A1/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
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/02—Branch units, e.g. made in one piece, welded, riveted

Definitions

  • the present application relates to the technical field of electrical appliance manufacturing, and in particular, to a pipeline connection structure.
  • a pipeline connection structure for connecting a refrigerant pipeline includes two connection blocks, the two connection blocks are provided with respective passages, and the two connection blocks are connected by bolts to realize the butt communication of the passages.
  • the existing pipeline connection structure is a single connection plate structure, which is suitable for the structure of the heat exchanger inlet and outlet at both ends.
  • the heat exchanger inlet and outlet are on the same side, two independent connection plates are required, occupying a relatively large big space.
  • This application proposes a pipeline connection structure.
  • the inlet and outlet of the heat exchanger are on the same side, only a double pipeline connection structure is needed to save installation space.
  • a pipeline connection structure includes: a first connection block, and the first connection block includes at least a first channel and a second channel; A connection block, the second connection block includes at least a third channel and a fourth channel, the third channel is in communication with the first channel, the fourth channel is in communication with the second channel, and the first connection A surface of the block facing the second connecting block is provided with a first positioning ring groove surrounding the first channel, and a surface of the second connecting block facing the first connecting block is provided with a first positioning ring surrounding the second channel.
  • Two positioning ring platforms are fitted in the first positioning ring groove; a fastener, the first connection block and the second connection block are fastened by the fastener.
  • pipeline connection structure according to the above embodiments of the present application may also have the following additional technical features:
  • the pipeline connection structure further includes a through hole, the fastener penetrates through the through hole, the fastener is not less than two, the first connection block and Each of the second connection blocks is provided with not less than two through holes.
  • the through hole of the first connection block includes a first through hole and a second through hole, and the first channel and the second channel are located in two of the first through hole and the second through hole.
  • the through holes of the second connection block include a third through hole and a fourth through hole, and the third channel and the fourth channel are located in two of the third through hole and the second through hole.
  • the fastener includes a first fastener and a second fastener, and the first connection block is fitted in the first through hole and the third through hole through A first fastener and a second fastener fitted in the second through hole and the fourth through hole are connected.
  • the pipeline connection structure further includes a third fastener, the third fastener is located between the first channel and the second channel and is located in the third channel
  • the first connection block includes a first sub-block and a second sub-block
  • the second channel is provided on the first sub-block
  • the first channel is provided on the first sub-block Two sub-blocks
  • the first sub-block is provided with a fifth through-hole
  • the second sub-block is provided with a sixth through-hole
  • the second connection block is provided with a seventh through-hole
  • the third fastener is provided Fit in the fifth through hole, the sixth through hole and the seventh through hole.
  • the first sub-block has an extension, at least a part of the second sub-block is sandwiched between the extension and the second connection block, and the second sub-block A boss is provided, and the boss fits in the gap.
  • a surface of the first connection block facing the second connection block includes a protrusion, the protrusion is provided with a positioning protrusion, and the second connection block faces the first connection block.
  • the surface includes positioning grooves, the positioning protrusions fit in the positioning grooves, the positioning protrusions are integrally formed with the projections, and the total clearance between the positioning protrusions and the sidewalls of the positioning grooves is H, H width is 0mm-0.15mm.
  • a contact surface between the positioning protrusion and the positioning groove, a side near the fastener includes a first mating surface located on a side wall of the positioning protrusion and a side wall of the positioning groove.
  • a second mating surface, the gap between the first mating surface and the second mating surface is 0mm-0.075mm.
  • the positioning protrusion and the positioning groove are located on one side of the fastener and the first channel and the second channel Located on the other side of the fastener.
  • the second connection block includes a first side surface and a second side surface disposed substantially parallel to the first side surface, and two ends of the positioning groove are respectively located on the first side surface and On the second side surface, the positioning groove is a circular groove, and the positioning protrusion is a cylinder.
  • the pipeline connection structure further includes a seal ring
  • the first positioning ring groove has a first groove bottom surface, a first groove inner side wall, and a first groove outer side wall, and the first groove bottom face Connected to the outer side wall of the first slot
  • the second positioning ring platform has a second platform end surface, a second platform internal wall and a second platform external wall, the second platform end surface and the second platform internal wall, the second platform
  • the outer wall of the table is connected, the sealing ring fits in the groove of the first positioning ring and the sealing ring is provided with a protruding portion, the protruding portion is arranged along the circumferential direction of the sealing ring, and the second end surface of the table
  • at least one of the bottom surface of the first groove has a sealing groove
  • the sealing groove is adapted to the shape of the protrusion
  • the outer wall of the second stage is matched with the outer wall of the first groove
  • the inner side of the second stage The outer peripheral surface of the seal ring is matched with
  • the protruding portion has a first outwardly extending from an inner peripheral surface of the seal ring in an axial direction of the seal ring and extending obliquely outward in a radial direction of the seal ring.
  • An inclined surface, and a second inclined surface extending outward from the outer peripheral surface of the seal ring in the axial direction of the seal ring and inclined inwardly in the radial direction of the seal ring, the first inclined surface and the second inclined surface
  • the inclined surfaces intersect, and the sealing groove has a third inclined surface and a fourth inclined surface, and an included angle between the third inclined surface and the fourth inclined surface is greater than an included angle between the first inclined surface and the second inclined surface.
  • the protruding portion has a circular arc surface connected to the inner peripheral surface and the outer peripheral surface of the seal ring, respectively, and protruding outward along the axial direction of the seal ring.
  • the protrusions are two and are respectively located at two ends in the axial direction of the seal ring, and the second end surface and the first groove bottom surface both have the same protrusions as the protrusions.
  • the shape of the seal groove is two and are respectively located at two ends in the axial direction of the seal ring, and the second end surface and the first groove bottom surface both have the same protrusions as the protrusions.
  • a cross section of the seal ring in a radial direction is a stepped shape, and the end surface of the second stage and the bottom surface of the first groove are both stepped shapes adapted to the end surface of the seal ring.
  • the seal ring has a first tread surface, a second tread surface, a third tread surface, and a fourth tread surface, and a first kick surface and a second kick surface.
  • the inner peripheral surface of the seal ring is respectively the first tread surface and the third tread surface. Connected, the first kick surface is connected to the first tread surface and the second tread surface, the outer peripheral surface of the seal ring is connected to the second tread surface and the fourth tread surface, and the second kick surface is respectively Connected to the fourth tread and the third tread.
  • a surface of the first connection block facing the second connection block is provided with a first boss surrounding the first channel, and the first positioning ring groove is formed in the first
  • An end surface of the boss, a surface of the second connection block facing the first connection block is provided with a second groove surrounding the second channel, and the second positioning ring table is formed in the second groove.
  • a bottom wall, the first boss is fitted in the second groove, and the first boss has a first inner end face, a first outer end face, and a first outer side wall; The end surface is connected to the inner peripheral surface of the first channel and the inner wall of the first groove, and the outer end surface of the first stage is connected to the outer wall of the first stage and the outer wall of the first groove, respectively.
  • the second groove has a second groove inner bottom surface, a second groove outer bottom surface, and a second groove outer side wall.
  • the second groove outer bottom surface is connected to the second stage outer wall and the second groove outer side wall, respectively.
  • the inner bottom surface of the second groove is respectively connected to the inner peripheral surface of the second channel and the inner wall of the second stage of the second positioning ring platform.
  • the outer wall of the second groove is matched with the outer wall of the first stage, and the outer end surface of the first stage is opposite to the outer bottom surface of the second groove in the axial direction of the first channel and the second channel,
  • the inner surface of the first stage is opposite to the inner surface of the second groove in the axial direction of the first channel and the second channel.
  • FIG. 1 is an exploded view of a pipeline connection structure according to an embodiment of the present application.
  • FIG. 2 is a cross-sectional view of a pipeline connection structure according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a pipeline connection structure according to another embodiment of the present application.
  • FIG. 4 is an exploded view of a pipeline connection structure according to another embodiment of the present application.
  • FIG. 5 is a cross-sectional view of a pipeline connection structure according to another embodiment of the present application.
  • FIG. 6 is an exploded view of a pipeline connection structure according to another embodiment of the present application.
  • FIG. 7 is a cross-sectional view of a pipeline connection structure according to another embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a pipeline connection structure according to another embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a pipeline connection structure according to another embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a pipeline connection structure according to another embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a pipeline connection structure according to another embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a pipeline connection structure according to another embodiment of the present application.
  • FIG. 13 is a cross-sectional view of a pipeline connection structure according to another embodiment of the present application.
  • FIG. 14 is an enlarged view at D in FIG. 13.
  • 15 is a cross-sectional view of a pipeline connection structure according to another embodiment of the present application.
  • FIG. 16 is an enlarged view at E in FIG. 15.
  • 17 is a cross-sectional view of a pipeline connection structure according to another embodiment of the present application.
  • FIG. 18 is a cross-sectional view of a pipeline connection structure according to another embodiment of the present application.
  • FIG. 19 is an enlarged view at D in FIG. 18.
  • 20 is a cross-sectional view of a second connection block of a pipeline connection structure according to another embodiment of the present application.
  • 21 is a cross-sectional view of a second connection block of a pipeline connection structure according to another embodiment of the present application.
  • FIG. 22 is a cross-sectional view of a first connection block of a pipeline connection structure according to another embodiment of the present application.
  • FIG. 23 is a cross-sectional view of a seal ring of a pipeline connection structure according to another embodiment of the present application.
  • pipeline connection structure 1 first connection block 100, bump 101, second channel 111, first channel 112, first positioning ring groove 120, sealing groove 121, third inclined surface 125, fourth inclined surface 126 , First groove bottom surface 122, first groove inner side wall 123, first groove outer side wall 124, first boss 130, first stage inner end face 131, first stage outer end face 132, first stage outer side wall 133, first Through-hole 140, second through-hole 150, first sub-block 160, fifth through-hole 161, extension 162, notch 163, second sub-block 170, sixth through-hole 171, boss 172, positioning protrusion 180, First mating surface 181, second connection block 200, first side surface 201, second side surface 202, fourth channel 211, third channel 212, second positioning ring table 220, second end surface 221, second table Inner side wall 222, second outer side wall 223, second groove 230, second groove inner bottom surface 231, second groove outer bottom surface 232, second groove outer side wall 233, ninth through hole 240, third through hole 250, Fourth through hole
  • connection blocks are connected by bolts.
  • carbon dioxide used as a refrigerant
  • the working pressure of the carbon dioxide system is relatively large, resulting in a large pretension force on the side of the two connection blocks away from the bolts.
  • the pre-tensioning force on the other side of the bolt is small, so that the two connecting blocks away from the bolt are prone to warp, which causes the pipeline connection structure to leak.
  • the pipeline connection structure 1 includes a first connection block 100, a second connection block 200, a fastener 300, and a through hole.
  • the first connection block 100 includes at least a first channel 112 and a second channel 111.
  • the second connection block 200 includes at least a third channel 212 and a fourth channel 211.
  • the third channel 212 is in communication with the first channel 112, and the fourth channel 211 is in communication with the second channel 111.
  • the first connection block 100 and the second connection block 200 are fastened by the fastener 300.
  • the surface of the first connection block 100 facing the second connection block 200 is provided with a first positioning ring groove 120 surrounding the first channel 112 and the second channel 111.
  • the surface of the second connection block 200 facing the first connection block 100 is provided with a first positioning ring groove 120.
  • the second positioning ring stage 220 of the three channels 212 and the fourth channel 211 are fitted in the first positioning ring groove 120.
  • the positions of the first positioning ring groove 120 and the second positioning ring table 220 can also be interchanged.
  • the first positioning ring groove 120 and the second positioning ring table 220 can be used for the first connection block 100 and
  • the installation and positioning of the second connection block 200 facilitates the smooth installation of the first connection block 100 and the second connection block 200, facilitates the smooth communication between the first channel 110 and the second channel 210, and further facilitates the improvement of the pipeline connection structure. 1 tightness.
  • first channel 112 and a second channel 111 are provided on the first connection block 100, and a third channel 212 and a fourth channel 211 are provided on the second connection block 200, which facilitates different refrigerants such as high-pressure refrigerant and low-pressure refrigerant in the tube.
  • the circuit connection structure 1 flows smoothly inside, which is convenient for improving the working performance of the pipeline connection structure 1.
  • the sealing performance of the pipeline connection structure 1 can be improved compared with the pipeline connection structure 1 in the related art, and the pipeline connection structure 1 is convenient for the application of high sealing requirements.
  • it is applied to an air conditioning system using two refrigerants, especially an air conditioning system in which one of the refrigerants is carbon dioxide.
  • the pipeline connection structure 1 according to the embodiment of the present application has advantages such as convenient use and good sealing effect.
  • the pipeline connection structure 1 includes a first connection block 100, a second connection block 200, a fastener 300, and a through hole. .
  • the fastener 300 penetrates the through hole, the fastener 300 is not less than two, and the first connection block 100 and the second connection block 200 are each provided with not less than two of the fasteners. Through-hole.
  • the pre-tension force distribution of the first connection block 100 and the second connection block 200 can be made more uniform, and the forces of the first connection block 100 and the second connection block 200 can be more balanced.
  • the risk of leakage of the structure 1 is convenient for improving the sealing reliability of the pipeline connection structure 1 and improving the performance of the pipeline connection structure 1.
  • the through holes of the first connection block 100 include a first through hole 140 and a second through hole 150, and the first channel 112 and the second channel 111 are located in the two first through holes 140 and Between the second through holes 150, the through holes of the second connection block 200 include a third through hole 250 and a fourth through hole 260, and the third channel 212 and the fourth channel 211 are located in the two third through holes 250 and the first through hole 250. Between the four through holes 260. This can further make the forces of the first connection block 100 and the second connection block 200 more uniform, and further improve the sealing effect of the pipeline connection structure 1.
  • the fastener 300 includes a first fastener 310 and a second fastener 320.
  • the first connection block 100 is mated with the first fastener in the first through hole 140 and the third through hole 250.
  • the fastener 310 and the second fastener 320 fitted in the second through hole 150 and the fourth through hole 260 are connected to the second connection block 200.
  • the installation of the structure 1 improves the disassembly and assembly efficiency of the pipeline connection structure 1, not only can improve the assembly efficiency of the pipeline connection structure 1, but also can be quickly disassembled when the pipeline connection structure 1 fails.
  • the pipeline connection structure 1 further includes a third fastener 330.
  • the third fastener 330 is located between the first channel 112 and the second channel 111 and is located between the third channel 212 and the fourth channel. Between channels 211. In this way, the stress of the pipeline connection structure 1 can be made more uniform, further improving the connection reliability of the pipeline connection structure 1, further improving the sealing performance of the pipeline connection structure 1, and reducing the risk of leakage of the pipeline connection structure 1. .
  • the first connection block 100 includes a first sub-block 160 and a second sub-block 170.
  • the second channel 111 is provided in the first sub-block 160 and the first channel 112 is provided in the second sub-block. 170
  • the first sub-block 160 is provided with a fifth through-hole 161
  • the second sub-block 170 is provided with a sixth through-hole 171
  • the second connection block 200 is provided with a seventh through-hole 270
  • the third fastener 330 is fitted in the first The five through holes 161, the sixth through holes 171, and the seventh through holes 270.
  • connection structure 1 This is not only convenient to improve the connection reliability of the pipeline connection structure 1, but also because one of the sub-blocks is installed before the other is installed during installation, it can avoid jamming due to mismatch or tilt during assembly, which is convenient for the pipeline. Smooth disassembly of the connection structure 1.
  • the first through hole 140 is located on one side of the second channel 111 and the fifth through hole 161 is located on the other side of the second channel 111.
  • the sixth through hole 171 is located on one side of the first channel 112 and the second through hole 150 is located on the other side of the first channel 112.
  • the fifth through hole 161 and the sixth through hole 171 are located between the second channel 111 and the first channel 112.
  • the seventh through hole 270 is located between the fourth channel 211 and the third channel 212.
  • the fifth through-hole 161, the sixth through-hole 171, and the seventh through-hole 270 are sequentially communicated.
  • the first sub-block 160 has an extension 162, and at least a part of the second sub-block 170 is sandwiched between the extension 162 and the second connection block 200.
  • the extension portion 162 can be used for positioning when the second sub-block 170 is installed, which not only simplifies the installation operation and facilitates the smooth installation of the second sub-block 170, but also improves the stability and reliability of the second sub-block 170 after installation.
  • the extending portion 162 is provided with a notch 163, and the second sub-block 170 is provided with a boss 172, and the boss 172 fits in the notch 163.
  • the boss 172 fits in the notch 163.
  • the second sub-block 170 can be positioned by using the notch 163 and the boss 172, which facilitates the setting of the second sub-block 170, but also avoids interference between the first sub-block 160 and the second sub-block 170, which is convenient for the first sub-block. 160 and the second sub-block 170 are smoothly assembled and formed.
  • the end surface of the boss 172 is flush with the surface of the first sub-block 160 away from the second connection block 200. This facilitates improving the appearance integrity and aesthetics of the pipeline connection structure 1.
  • the pipeline connection structure 1 further includes a seal ring 400.
  • the sealing ring 400 is an expanded graphite gasket.
  • a surface of the first connection block 100 facing the second connection block 200 is provided with a first boss 130 surrounding the first channel 110, and the first positioning ring groove 120 is formed on the first boss 130.
  • a surface of the second connection block 200 facing the first connection block 100 is provided with a second groove 230 surrounding the second channel 210, and a second positioning ring platform 220 is formed on the bottom wall of the second groove 230.
  • the stage 130 fits in the second groove 230.
  • the pipeline connection structure 1 includes a first connection block 100, a second connection block 200, and a fastener 300.
  • the first connection block 100 is provided with a first channel 110
  • the second connection block 200 is provided with a second channel 210
  • the second channel 210 is in communication with the first channel 110.
  • the surface of the first connection block 100 facing the second connection block 200 includes a protrusion 101
  • the protrusion 101 is provided with a positioning protrusion 180.
  • the second connection block 200 includes a positioning groove 280.
  • the positioning protrusion 180 fits in the positioning groove 280.
  • the protrusion 180 is integrally formed with the boss 101.
  • the first connection block 100 and the second connection block 200 are connected by a fastener 300.
  • the total assembly clearance of the positioning protrusion 180 and the side wall of the positioning groove 280 is H, and the width of H is 0 mm-0.15 mm.
  • the total clearance H between the side walls of the positioning protrusion 180 and the positioning groove 280 is equal to the gap H1 between the side wall of the positioning protrusion 180 and the positioning groove 280 and the other side Sum of side wall gap H2.
  • the positioning protrusion 180 and the positioning groove 280 when the first connection block 100 and the second connection block 200 are connected by the fastener 300, the positioning protrusion 180 and the positioning groove can be used 280 Positions the first connection block 100 and the second connection block 200 in the vertical rotation degree of freedom.
  • the first connection block 100 and the second connection block 200 can be prevented from facing each other. Dislocation caused by rotation facilitates the smooth installation of the first connection block 100 and the second connection block 200, facilitates the improvement of the assembly efficiency of the pipeline connection structure 1, and improves the stability and reliability of the pipeline connection structure 1 after installation.
  • an additional positioning structure such as a positioning pin can be omitted, which facilitates simplifying the structure of the pipeline connection structure 1 and improves the production efficiency of the pipeline connection structure 1.
  • the positioning protrusion 180 and the positioning groove 280 can be used to position the first connection block 100 and the second connection block 200 to prevent The first connection block 100 and the second connection block 200 are lifted up under the pressure, which is convenient for improving the structural reliability of the pipeline connection structure 1 and avoids the first connection block 100 and the second connection block 200 from being lifted up and separated, so that The risk of leakage of the pipeline connection structure 1 is reduced, the sealing reliability of the pipeline connection structure 1 is facilitated, and the working performance of the pipeline connection structure 1 is facilitated.
  • the positioning protrusion 180 and the positioning groove 280 can improve the sealing performance of the pipeline connection structure 1 compared with the pipeline connection structure in the related art, and facilitate the application of the pipeline connection structure 1 to a place with high sealing requirements, such as Applied to air-conditioning systems using carbon dioxide as a refrigerant, this is convenient to improve the working performance of the air-conditioning system, improve the working efficiency of the air-conditioning system, and reduce the volume of the air-conditioning system.
  • the compressor, evaporator and condenser in the air-conditioning system can be reduced. The volume of the air conditioning system is reduced, the air conditioning system is easy to set up, and it is convenient to improve the reliability and stability of the air conditioning system.
  • the total assembly clearance between the positioning protrusion 180 and the side wall of the positioning groove 280 is H, and the width of H is 0mm-0.15mm. This can reduce the friction between the mounting positioning protrusion 180 and the positioning groove 280, facilitate the positioning protrusion 180 to fit smoothly in the positioning groove 280, and improve the structural accuracy and position accuracy of the pipeline connection structure 1.
  • the pipeline connection structure 1 according to this embodiment has the advantages of convenient use and good sealing effect.
  • the pipeline connection structure 1 of this embodiment includes a first connection block 100, a second connection block 200, and a fastener 300.
  • the contact surface of the positioning protrusion 180 and the positioning groove 280, the side near the fastener 300 includes a first mating surface 181 located on a side wall of the positioning protrusion 180 and a second mating surface 281 on a side wall of the positioning groove 280.
  • the gap between the first mating surface 181 and the second mating surface 281 is 0 mm-0.075 mm. This facilitates improving the uniformity of the fit between the positioning protrusion 180 and the positioning groove 280, and further facilitates the positioning protrusion 180 to fit smoothly in the positioning groove 280.
  • the positioning protrusion 180 and the positioning groove 280 are located on one side of the fastener 300 and the first channel 110 and the second channel 210 are located tightly.
  • the other side of the firmware 300 Since the two connecting blocks are lifted on one side of the fastener 300, the opposite force will be applied to the other side of the fastener 300, so that the positioning protrusion 180 and the positioning groove 280 are provided in the fastener 300
  • the other side is more beneficial to prevent the first connection block 100 and the second connection block 200 from rising under the pressure of the refrigerant.
  • the positioning protrusions 180 and the positioning grooves 280 facilitate the positioning of the first connection block 100 and the second connection block 200 on one side of the fastener 300, and limit the first connection block 100 and the second connection block 200 on the fastener 300.
  • the other side of the valve is relatively rotated and warped due to the pressure of the refrigerant, thereby improving the positioning accuracy and reliability of the positioning protrusion 180 and the positioning groove 280, thereby further improving the sealing effect of the pipeline connection structure 1.
  • the positioning protrusion 180 is provided on the first connection block 100
  • the first connection block 100 is provided with an eighth through hole 290
  • the positioning groove 280 is provided on the second connection block 200.
  • the second connection block 200 is provided with a ninth through hole 240.
  • the first connection block 100 and the second connection block 200 are connected by a fastener 300 fitted in the eighth through hole 290 and the ninth through hole 240.
  • the eighth through hole 290 is located between the positioning protrusion 180 and the first channel 110
  • the ninth via hole 240 is located between the positioning groove 280 and the second channel 210.
  • the positions of the positioning protrusion 180 and the positioning groove 280 can also be interchanged.
  • the positioning groove 280 is a rectangular groove and the length direction is perpendicular to the imaginary connection line between the center axis of the ninth via hole 240 and the center axis of the second channel 210.
  • the riser 180 is a rectangular parallelepiped whose length direction is perpendicular to the imaginary connection line between the central axis of the eighth through hole 290 and the central axis of the first channel 110. In this way, it is convenient for the positioning protrusion 180 to cooperate with the positioning groove 280, it is convenient to reliably limit the first connection block 100 and the second connection block 200, and the sealing performance of the pipeline connection structure 1 is further improved.
  • the second connection block 200 includes a first side surface 201 and a second side surface 202 disposed substantially parallel to the first side surface 201. Both ends of the positioning groove 280 are respectively located on the first side surface 201. And second side surface 202. This facilitates processing and positioning of the positioning protrusions 180 and the positioning grooves 280 and improves the production efficiency of the pipeline connection structure 1.
  • the positioning groove 280 is a circular groove and the center axis is parallel to the center axis of the ninth via hole 240.
  • the positioning protrusion 180 is a cylinder and the center axis is in communication with the eighth channel.
  • the center axis of the hole 290 is parallel. This facilitates the coordination of the positioning protrusion 180 and the positioning groove 280, further facilitates the smooth installation of the first connection block 100 and the second connection block 200, and facilitates reliable positioning of the first connection block 100 and the second connection block 200, further facilitating The sealing effect of the pipeline connection structure 1 is improved.
  • three positioning protrusions 180 are provided on the surface of the second connection block 200 facing the first connection block 100 at intervals.
  • the three positioning grooves 280 are three and the three positioning protrusions 180 are respectively fitted in the three positioning grooves 280. Inside. In this way, the forces of the first connection block 100 and the second connection block 200 can be more uniform, and the structural stability of the pipeline connection structure 1 can be improved.
  • the projection of the positioning groove 280 in the groove depth direction may be a V-shape, and of course, it may also have other shapes.
  • the positioning grooves 280 may be multiple and spaced on the second connection block 200, and the positioning protrusions 180 may be multiple and spaced on the first connection block 100. This can make the forces of the first connection block 100 and the second connection block 200 more uniform, and improve the stability of the pipeline connection structure.
  • the positioning protrusion 180 is fitted into the positioning groove 280 with a clearance of 0-0.15 mm. This facilitates the positioning protrusion 180 to fit smoothly into the positioning groove 280.
  • the one-sided fitting clearances of the positioning protrusion 180 and the positioning groove 280 are 0-0.075 mm, respectively.
  • a surface of the first connection block 100 facing the second connection block 200 is provided with a first positioning ring groove 120 surrounding the first passage 110, and the second connection block 200 faces the first connection block 100.
  • a second positioning ring table 220 surrounding the second channel 210 is provided on the surface, and the second positioning ring table 220 fits in the first positioning ring groove 120.
  • the pipeline connection structure 1 further includes a seal ring 400.
  • the sealing ring 400 is an expanded graphite gasket.
  • a surface of the first connection block 100 facing the second connection block 200 is provided with a first boss 130 surrounding the first channel 110, and a first positioning ring groove 120 is formed in the first boss 130.
  • a surface of the second connection block 200 facing the first connection block 100 is provided with a second groove 230 surrounding the second channel 210, a second positioning ring platform 220 is formed on a bottom wall of the second groove 230, and a second boss 230 fits in the first groove 130.
  • the pipeline connection structure 1 includes a first connection block 100, a second connection block 200, a fastener 300, and a seal ring 400.
  • the first connection block 100 is provided with a first channel 110
  • the second connection block 200 is provided with a second channel 210
  • the second channel 210 is in communication with the first channel 110.
  • a surface of the first connection block 100 facing the second connection block 200 is provided with a first positioning ring groove 120 surrounding the first channel 110
  • a surface of the second connection block 200 facing the first connection block 100 is provided with a first positioning ring 120 surrounding the second channel 210.
  • Two positioning ring platforms 220 are fitted in the first positioning ring groove 120.
  • the first positioning ring groove 120 has a first groove bottom surface 122, a first groove inner side wall 123, and a first groove outer side wall 124.
  • a groove bottom surface 122 is connected to the first groove outer side wall 124, the second positioning ring stage 220 has a second stage end surface 221, a second stage inner side wall and a second stage outer side wall 223, and the second stage end surface 221 and the second stage inner side wall are first The two outer side walls 223 are connected.
  • the first connection block 100 and the second connection block 200 are connected by a fastener 300.
  • the sealing ring 400 is fitted in the first positioning ring groove 120 and the sealing ring 400 is provided with a protruding portion 410.
  • the protruding portion 410 is arranged along the circumferential direction of the sealing ring 400. At least one of the second end surface 221 and the first groove bottom surface 122 is provided.
  • a sealing groove 121 is provided.
  • the sealing groove 121 is adapted to the shape of the protruding portion 410.
  • the second outer wall 223 cooperates with the first groove outer wall 124.
  • the outer peripheral surface of the second inner wall sealing ring 400 and the first groove outer wall 124 In cooperation, the inner peripheral surface of the seal ring 400 is matched with the inner wall of the first groove 123, and the seal ring 400 is clamped between the first groove bottom surface 122 and the second end surface 221 in the axial direction thereof.
  • the fit in the “fitting of the second outer wall 223 with the first groove outer wall 124” includes two cases of overlapping fit and non-overlapping fit.
  • the sealing ring 400 is provided with a protruding portion 410, and the second end surface 221 and the first At least one of the groove bottom surfaces 122 has a sealing groove 121 formed by turning.
  • the sealing groove 121 is adapted to the shape of the protruding portion 410 and cooperates with the protruding portion 410, so that the convex portion 410 and the sealing groove 121 can be used to The pipeline connection structure 1 is sealed.
  • the protrusion 410 can be used to balance the fastener 300 on one side of the connection structure 1 Pressure, the other side of the connection structure 1 receives unevenness and insufficient pre-tightening. Due to reducing the contact area of the seal ring 400 with at least one of the first positioning ring groove 120 and the second positioning ring table 220, Under the condition that the pressure of the fastener 300 is unchanged, the contact surface of the seal ring 400 is stressed, which improves the combination between the seal ring 400 and at least one of the first and second positioning ring grooves 120 and 220. Force to improve the sealing reliability of the pipeline connection structure 1, which can make The sealing ring 400 has a better sealing effect and improves the working performance of the pipeline connection structure 1.
  • the protruding portion 410 has a characteristic of abrupt cross section when the sealing ring 400 is squeezed, compared with the pipe connection structure in the related art, which is convenient for the sealing ring 400 to receive.
  • the elastic deformation of the pressure increases the elastic deformation capacity of the seal ring 400. Not only can a larger contact surface pressure be obtained by applying a smaller pre-tightening force, and it is convenient to reduce the pre-tightening force required for the pipeline connection structure 1.
  • the seal ring 400 can compensate the separation amount of the first connection block 100 and the second connection block 200 by the rebound amount, thereby preventing leakage of the pipeline connection structure 1, The sealing reliability of the pipeline connection structure 1 is further improved.
  • the sealing performance of the pipeline connection structure 1 can be improved compared with the pipeline connection structure in the related art, and the pipeline connection structure 1 is convenient for applications with high sealing requirements, such as Applied to air-conditioning systems using carbon dioxide as a refrigerant, this is convenient to improve the working performance of the air-conditioning system, improve the working efficiency of the air-conditioning system, and reduce the volume of the air-conditioning system.
  • the compressor, evaporator and condenser in the air-conditioning system can be reduced.
  • the volume of the air conditioning system is reduced, the air conditioning system is easy to set up, and it is convenient to improve the reliability and stability of the air conditioning system.
  • the pipeline connection structure 1 according to the embodiment of the present application has advantages such as convenient use and good sealing effect.
  • the pipeline connection structure 1 of this embodiment includes a first connection block 100, a second connection block 200, a fastener 300, and a seal ring 400.
  • the second positioning ring table 220 also has a second outer wall 223, and the second end surface 221 is connected to the second inner wall 222 and the second outer wall 223, respectively.
  • the protruding portion 410 has an inner peripheral surface 402 of the seal ring 400 extending outward in the axial direction of the seal ring 400 and extends obliquely outward in the radial direction of the seal ring 400.
  • a first inclined surface 411 and a second inclined surface 412 extending outward from the outer peripheral surface of the seal ring 400 along the axial direction of the seal ring 400 and extending obliquely inward along the radial direction of the seal ring 400; the first inclined surface 411 and the second inclined surface 412 intersects, the sealing groove 121 has a third inclined surface 125 and a fourth inclined surface 126, and an included angle between the third inclined surface 125 and the fourth inclined surface 126 is greater than an included angle between the first inclined surface 411 and the second inclined surface 412. This is convenient to reduce the sealing contact area of the sealing ring 400, to facilitate the elastic deformation of the sealing ring 400 under pressure, and to further improve the sealing performance of the sealing ring 400.
  • the protruding portion 410 has a circular arc surface connected to the inner peripheral surface 402 and the outer peripheral surface 401 of the seal ring 400 and protruding outward along the axial direction of the seal ring 400, respectively. In this way, it is also easy to reduce the sealing contact area of the sealing ring 400, it is easy for the sealing ring 400 to be elastically deformed, and the sealing effect of the sealing ring 400 is further improved.
  • the protruding portions 410 are two and are respectively located at two ends in the axial direction of the seal ring 400.
  • the second end surface 221 and the first groove bottom surface 122 both have a convex shape.
  • the shape of the outlet portion 410 is a sealing groove 121. In this way, it is convenient to reduce the contact area of the seal ring 400 with the first connection block 100 and the second connection block 200, improve the elastic deformation capability of the seal ring 400, and further improve the sealing performance of the pipeline connection structure 1.
  • the seal ring 400 it is convenient for the seal ring 400 to cooperate with the first connection block 100 and the second connection block 200, which can prevent the seal ring 400 from being misinstalled, facilitate the smooth installation of the seal ring 400, and improve the installation efficiency of the seal ring 400.
  • the cross section of the seal ring 400 in the radial direction is stepped, and the second end surface 221 and the first groove bottom wall 122 are connected to the seal ring 400.
  • the stepped type of the end face is adapted.
  • the seal ring 400 has a first tread surface 413, a second tread surface 414, a third tread surface 415 and a fourth tread surface 416, and a first kick surface 417 and a second kick surface 418.
  • the inner peripheral surface of the seal ring 400 402 is connected to the first tread surface 413 and the third tread surface 415
  • the first kick surface 417 is connected to the first tread surface 413 and the second tread surface 414, respectively
  • the outer circumferential surface 401 of the seal ring 400 is connected to the second tread surface 414 and the fourth tread surface 416, respectively.
  • the second kick surface 418 is connected to the fourth tread surface 416 and the third tread surface 415, respectively.
  • the first kicking surface 417 and the second tread surface 414 of the seal ring 400 constitute a protruding portion 410
  • the second kicking surface 418 and the third tread surface 415 of the seal ring 400 constitute a protruding portion 410.
  • This also facilitates reducing the contact area of the seal ring 400 with the first connection block 100 and the second connection block 200, improving the elastic deformation ability of the seal ring 400, and further improving the sealing reliability of the pipeline connection structure 1.
  • a surface of the first connection block 100 facing the second connection block 200 is provided with a first boss 130 surrounding the first channel 110, and a first positioning ring groove 120 is formed in the first On the end surface of the boss 130, a surface of the second connection block 200 facing the first connection block 100 is provided with a second groove 230 surrounding the second channel 210, and a second positioning ring stage 220 is formed on the bottom wall of the second groove 230.
  • the first boss 130 fits in the second groove 230.
  • the first boss 130 has a first inner end surface 131, a first outer end surface 132, and a first outer side wall 133.
  • the first inner end surface 131 and the first The inner peripheral surface of a channel 110 is connected to the first groove inner side wall 123, the first outer end surface 132 is connected to the first outer side wall 133 and the first groove outer side wall 124, respectively, and the second groove 230 has a second groove inner bottom surface. 231.
  • the second groove outer bottom surface 232 is connected to the second stage outer side wall 223 and the second groove outer side wall 233, respectively.
  • the second groove inner bottom surface 231 is respectively connected to the second channel.
  • the inner peripheral surface of 210 is connected to the second inner wall 222 of the second positioning ring platform 220, and the second groove outer wall 233 is matched with the first outer wall 133.
  • first outer end surface 132 and the second groove outer bottom surface 232 are opposite to each other in the axial direction of the first channel 110 and the second channel 210, and the first inner end surface 131 and the second groove inner bottom surface 231 are in the first channel 110 and The second channel 210 is axially opposed.
  • This not only facilitates the setting of the first positioning ring groove 120 and the second positioning ring table 220, but also can use the first boss 130 and the second groove 230 to position and guide the first connection block 100 and the second connection block 200. It is convenient for smooth assembly of the first connection block 100 and the second connection block 200, and it is convenient to improve the assembly accuracy and the assembly efficiency of the pipeline connection structure 1.
  • the forces of the first connection block 100 and the second connection block 200 can be made more uniform, and local stress concentration can be avoided, thereby preventing one side of the first connection block 100 and the second connection block 200 from being warped.
  • the first boss 130 fits in the second groove 230 with a clearance.
  • first positioning ring groove 120 and the second positioning ring table 220 may be interchanged, and the positions of the first boss 130 and the second groove 230 may also be interchanged.
  • the center axes of the first channel 110 and the second channel 210 coincide
  • the first boss 130 and the first positioning ring groove 120 coincide with the center axis of the first channel 110
  • the ring platform 220 coincides with the central axis of the second channel 210. This not only facilitates the manufacture and assembly of the pipeline connection structure 1, but also improves the structural strength and stability of the pipeline connection structure 1. It also facilitates the correspondence between the first channel 110 and the second channel 210, and reduces the media in the pipeline. Resistance makes the medium flow smoothly.
  • the inner peripheral surfaces of the second groove outer side wall 233, the second stage outer side wall 223, the second stage inner side wall 222, and the second channel 210 are arranged in parallel and spaced apart, and the first stage outer side wall 132 and the first groove inner side wall 123.
  • the outer wall 124 of the first groove and the inner peripheral surface of the first channel 110 are disposed in parallel and spaced apart. This can prevent the seal ring 400 from contacting the fastener 300, prevent the seal ring 400 from being locally stressed, and damage the seal ring 400, which is convenient for protecting the seal ring 400 and increasing the service life of the seal ring 400.
  • the sealing ring 400 is an expanded graphite gasket. This further facilitates improving the working reliability of the seal ring 400 and the sealing effect of the seal ring 400.
  • the first connection block 100 is provided with an eighth through hole 290
  • the second connection block 200 is provided with a ninth through hole 240
  • the fastener 300 is a bolt
  • the first connection block 100 and the second The connection block 200 is connected by a bolt fitted in the eighth through hole 290 and the ninth via hole 240.
  • the first connection block 100 and the second connection block 200 can be firmly installed together to ensure the reliability and stability of the fixed connection between the first connection block 100 and the second connection block 200.
  • the installation of the pipeline connection structure 1 can be facilitated, and the disassembly and assembly efficiency of the pipeline connection structure 1 can be improved. Not only can the production efficiency of the pipeline connection structure 1 be improved, but also when the pipeline connection structure 1 fails, it can be performed quickly. Disassembly.
  • the air-conditioning system according to the embodiment of the present application includes the pipe connection structure 1 according to the above-mentioned embodiment of the present application.
  • the air conditioning system may be an air conditioning system using carbon dioxide as a refrigerant.
  • the air-conditioning system according to the embodiment of the present application has the advantages of convenient use and good sealing effect by using the pipe connection structure 1 according to the above-mentioned embodiment of the present application.
  • first and second may explicitly or implicitly include one or more of the features.
  • a plurality means two or more.
  • first feature “above” or “below” the second feature may include the first and second features in direct contact, or the first and second features may not be in direct contact but through them Additional characteristic contact between.
  • the first feature is “above”, “above”, and “above” the second feature, including the first feature is directly above and obliquely above the second feature, or merely indicates that the level of the first feature is higher than The second feature.
  • connection should be understood in a broad sense, unless explicitly stated and limited otherwise.
  • they may be fixed connections or removable.
  • Connection, or integral connection it can be mechanical or electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements.
  • connection or integral connection; it can be mechanical or electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements.

Abstract

一种管路连接结构(1)，包括：第一连接块(100)、第二连接块(200)，第一连接块(100)设有第一定位环槽(120)，第二连接块(200)设有第二定位环台(220)，第二定位环台(220)配合在第一定位环槽(120)内，第一连接块(100)和第二连接块(200)通过紧固件(300)紧固。

Description

管路连接结构
相关申请的交叉引用
本申请基于申请号为201810758683.5、201810758681.6和201810759405.1，申请日为2018年07月11日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及电器制造技术领域，具体而言，涉及一种管路连接结构。
背景技术
相关技术中的空调系统，其用于连接冷媒管路的管路连接结构包括两个连接块，两个连接块设有各自的通路，两个连接块通过螺栓连接后实现通路的对接连通。
目前，现有的管路连接结构均为单个连接板结构，适用于换热器进出口在两端结构，当换热器进出口在同一侧时，需要两个独立的连接板，占用了较大空间。
发明内容
本申请提出一种管路连接结构，当换热器进出口在同一侧时，只需一个双管路的连接结构，节省安装空间。
为实现上述目的，根据本申请的实施例提出一种管路连接结构，所述管路连接结构包括：第一连接块，所述第一连接块至少包括第一通道和第二通道；第二连接块，所述第二连接块至少包括第三通道和第四通道，所述第三通道与所述第一通道连通，所述第四通道与所述第二通道连通，所述第一连接块朝向所述第二连接块的表面设有围绕所述第一通道的第一定位环槽，所述第二连接块朝向所述第一连接块的表面设有围绕所述第二通道的第二定位环台，所述第二定位环台配合在所述第一定位环槽内；紧固件，所述第一连接块和所述第二连接块通过所述紧固件紧固。
另外，根据本申请上述实施例的管路连接结构还可以具有如下附加的技术特征：
根据本申请的一个实施例，所述管路连接结构还包括通孔，所述紧固件贯穿于所述通孔内部，所述紧固件不少于两个，所述第一连接块和所述第二连接块均设有不少于两个的所述通孔。
根据本申请的一个实施例，所述第一连接块的所述通孔包括第一通孔和第二通孔，所述第一通道和第二通道位于两个所述第一通孔和所述第二通孔之间，所述第二连接块的所述通孔包括第三通孔和第四通孔，所述第三通道和第四通道位于两个所述第三通孔和所述第四通孔之间，所述紧固件包括第一紧固件、第二紧固件，所述第一连接块通过 配合在所述第一通孔和所述第三通孔内的第一紧固件以及配合在所述第二通孔和所述第四通孔内的第二紧固件相连。
根据本申请的一个实施例，所述管路连接结构还包括第三紧固件，所述第三紧固件位于所述第一通道和所述第二通道之间且位于所述第三通道和所述第四通道之间，所述第一连接块包括第一子块和第二子块，所述第二通道设于所述第一子块，所述第一通道设于所述第二子块，所述第一子块设有第五通孔，所述第二子块设有第六通孔，所述第二连接块设有第七通孔，所述第三紧固件配合在所述第五通孔、第六通孔和所述第七通孔内。
根据本申请的一个实施例，所述第一子块具有延伸部，所述第二子块的至少一部分夹持在所述延伸部和所述第二连接块之间，所述第二子块设有凸台，所述凸台配合在所述缺口内。
根据本申请的一个实施例，所述第一连接块朝向所述第二连接块的表面包括凸块，所述凸块设有定位凸起，所述第二连接块朝向所述第一连接块的表面包括定位槽，所述定位凸起配合在所述定位槽内，所述定位凸起与所述凸块为一体成型，所述定位凸起与所述定位槽的侧壁装配总间隙为H，H的宽度为0mm-0.15mm。
根据本申请的一个实施例，所述定位凸起与所述定位槽的接触面，近紧固件一侧包括位于所述定位凸起侧壁的第一配合面和位于所述定位槽侧壁的第二配合面，所述第一配合面与所述第二配合面之间间隙为0mm-0.075mm。
根据本申请的一个实施例，在所述第一连接块的长度方向，所述定位凸起和所述定位槽位于所述紧固件的一侧且所述第一通道和所述第二通道位于所述紧固件的另一侧。
根据本申请的一个实施例，所述第二连接块包括第一侧表面和与第一侧表面大体平行设置的第二侧表面，所述定位槽的两端分别位于所述第一侧表面和所述第二侧表面，所述定位槽为圆形槽，所述定位凸起为圆柱体。
根据本申请的一个实施例，所述管路连接结构还包括密封环，所述第一定位环槽具有第一槽底面、第一槽内侧壁和第一槽外侧壁，所述第一槽底面与所述第一槽外侧壁相连，所述第二定位环台具有第二台端面第二台内侧壁和第二台外侧壁，所述第二台端面与第二台内侧壁所述第二台外侧壁相连，所述密封环配合在所述第一定位环槽内且所述密封环设有凸出部，所述凸出部沿所述密封环周向设置，所述第二台端面和所述第一槽底面中的至少一个具有密封槽，所述密封槽与所述凸出部形状适配，所述第二台外侧壁与所述第一槽外侧壁配合，第二台内侧壁所述密封环的外周面与所述第一槽外侧壁配合，所述密封环的内周面与所述第一槽内侧壁配合，所述密封环在其轴向上夹持在所述第一槽底面与所述第二台端面之间，所述密封环为膨胀石墨垫圈。
根据本申请的一个实施例，所述凸出部具有由所述密封环的内周面沿所述密封环的轴向向外，且沿所述密封环的径向向外倾斜延伸的第一斜面，和由所述密封环的外周面 沿所述密封环的轴向向外，且沿所述密封环的径向向内倾斜延伸的第二斜面，所述第一斜面与所述第二斜面相交，所述密封槽具有第三斜面和第四斜面，所述第三斜面和所述第四斜面之间的夹角大于所述第一斜面和所述第二斜面之间的夹角。
根据本申请的一个实施例，所述凸出部具有分别与所述密封环的内周面和外周面相连且沿所述密封环的轴向向外凸出的圆弧面。
根据本申请的一个实施例，所述凸出部为两个且分别位于所述密封环轴向上的两端，所述第二台端面和所述第一槽底面均具有与所述凸出部形状适配的密封槽。
根据本申请的一个实施例，所述密封环在其径向上的截面为阶梯型，所述第二台端面和所述第一槽底面均为与所述密封环的端面适配的阶梯型，所述密封环具有第一踏面、第二踏面、第三踏面和第四踏面以及第一踢面和第二踢面，所述密封环的内周面分别与所述第一踏面和第三踏面相连，所述第一踢面分别与所述第一踏面和第二踏面相连，所述密封环的外周面分别与所述第二踏面和所述第四踏面相连，所述第二踢面分别与所述第四踏面和所述第三踏面相连。
根据本申请的一个实施例，所述第一连接块朝向所述第二连接块的表面设有围绕所述第一通道的第一凸台，所述第一定位环槽形成在所述第一凸台的端面，所述第二连接块朝向所述第一连接块的表面设有围绕所述第二通道的第二凹槽，所述第二定位环台形成在所述第二凹槽的底壁，所述第一凸台配合在所述第二凹槽内，所述第一凸台具有第一台内端面、第一台外端面和第一台外侧壁，所述第一台内端面分别与所述第一通道的内周面和所述第一槽内侧壁相连，所述第一台外端面分别与所述第一台外侧壁和所述第一槽外侧壁相连，所述第二凹槽具有第二槽内底面、第二槽外底面和第二槽外侧壁，所述第二槽外底面分别与所述第二台外侧壁和所述第二槽外侧壁相连，所述第二槽内底面分别与所述第二通道的内周面和所述第二定位环台的第二台内侧壁相连，所述第二槽外侧壁与所述第一台外侧壁配合，所述第一台外端面与所述第二槽外底面在所述第一通道和所述第二通道的轴向上相对，所述第一台内端面与所述第二槽内底面在所述第一通道和所述第二通道的轴向上相对。
根据本申请实施例的管路连接结构，两个管路通过一对连接块连接，节约了一部分安装空间。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本申请一个实施例的管路连接结构的爆炸图。
图2是根据本申请一个实施例的管路连接结构的剖视图。
图3是根据本申请另一个实施例的管路连接结构的结构示意图。
图4是根据本申请另一个实施例的管路连接结构的爆炸图。
图5是根据本申请另一个实施例的管路连接结构的剖视图。
图6是根据本申请另一个实施例的管路连接结构的爆炸图。
图7是根据本申请另一个实施例的管路连接结构的剖视图。
图8是根据本申请另一个实施例的管路连接结构的结构示意图。
图9是根据本申请另一个实施例的管路连接结构的结构示意图。
图10是根据本申请另一个实施例的管路连接结构的结构示意图。
图11是根据本申请另一个实施例的管路连接结构的结构示意图。
图12是根据本申请另一个实施例的管路连接结构的结构示意图。
图13是根据本申请另一个实施例的管路连接结构的剖视图。
图14是图13中D处的放大图。
图15是根据本申请另一个实施例的管路连接结构的剖视图。
图16是图15中E处的放大图。
图17是根据本申请另一个实施例的管路连接结构的剖视图。
图18是根据本申请另一个实施例的管路连接结构的剖视图。
图19是图18中D处的放大图。
图20是根据本申请另一个实施例的管路连接结构的第二连接块的剖视图。
图21是根据本申请另一个实施例的管路连接结构的第二连接块的剖视图。
图22是根据本申请另一个实施例的管路连接结构的第一连接块的剖视图。
图23是根据本申请另一个实施例的管路连接结构的密封环的剖视图。
附图标记：管路连接结构1、第一连接块100、凸块101、第二通道111、第一通道112、第一定位环槽120、密封槽121、第三斜面125、第四斜面126、第一槽底面122、第一槽内侧壁123、第一槽外侧壁124、第一凸台130、第一台内端面131、第一台外端面132、第一台外侧壁133、第一通孔140、第二通孔150、第一子块160、第五通孔161、延伸部162、缺口163、第二子块170、第六通孔171、凸台172、定位凸起180、第一配合面181、第二连接块200、第一侧表面201、第二侧表面202、第四通道211、第三通道212、第二定位环台220、第二台端面221、第二台内侧壁222、第二台外侧壁223、第二凹槽230、第二槽内底面231、第二槽外底面232、第二槽外侧壁233、第九通孔240、第三通孔250、第四通孔260、第七通孔270、定位槽280、第二配合面281、第八通孔290、紧固件300、第一紧固件310、第二紧固件320、第三紧固件330、密封环400、密封环的外周面401、密封环的内周面402、凸出部410、第一斜面411、第二斜面412、第一踏面413、第二踏面414、第三踏面415、第四踏面416、第一踢面417、第二踢面418。
具体实施方式
本申请是基于发明人对以下事实和问题的发现和认识作出的：
相关技术中的管路连接结构，两个连接块通过螺栓连接，当采用二氧化碳作为冷媒时，由于二氧化碳系统的工作压力较大，导致两个连接块远离螺栓的一侧预紧力较大，靠近螺栓的另一侧预紧力较小，这样两个连接块远离螺栓的一侧易发生翘起，从而导致管路连接结构发生泄漏。
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
下面参考附图描述根据本申请实施例的管路连接结构1。
如图1-图7所示，根据本申请实施例的管路连接结构1包括第一连接块100、第二连接块200、紧固件300和通孔。
第一连接块100至少包括第一通道112和第二通道111。第二连接块200至少包括第三通道212和第四通道211，第三通道212与第一通道112连通，第四通道211与第二通道111连通。第一连接块100和第二连接块200通过所述紧固件300紧固。第一连接块100朝向第二连接块200的表面设有围绕第一通道112和第二通道111的第一定位环槽120，第二连接块200朝向第一连接块100的表面设有围绕第三通道212和第四通道211的第二定位环台220，第二定位环台220配合在第一定位环槽120内。当然，第一定位环槽120和第二定位环台220的位置也可以互换。
根据本申请实施例的管路连接结构1，通过设置第一定位环槽120和第二定位环台220，可以利用第一定位环槽120和第二定位环台220对第一连接块100和第二连接块200的安装进行定位和导向，便于第一连接块100和第二连接块200顺畅地安装，便于实现第一通道110和第二通道210的顺畅连通，进一步便于提高管路连接结构1的密封性。
并且，在第一连接块100设有第一通道112和第二通道111，在第二连接块200设有第三通道212和第四通道211，便于不同的冷媒例如高压冷媒和低压冷媒在管路连接结构1内顺畅流通，便于提高管路连接结构1的工作性能。相比高压管路和低压管路分别采用不同的连接结构连接的方式，将不同的管路例如高压管路和低压管路整合在一起，提高管路连接结构1的集成度，不仅便于提高管路连接结构1的装配效率，节省装配时间，而且可以减小管路连接结构1的体积，节约所需的安装空间。同时，可以解决管路连接结构1受力不均的问题，降低管路连接结构1的泄漏风险，进一步提高管路连接结构1的密封效果。
此外，通过使所述紧固件300不少于两个，相比相关技术中的管路连接结构1，能够提高管路连接结构1的密封性能，便于管路连接结构1应用在密封要求高的场合，例如应用到使用两种冷媒的空调系统中，尤其是其中一种冷媒为二氧化碳为冷媒的空调系统中。
因此，根据本申请实施例的管路连接结构1具有使用方便、密封效果好等优点。
下面参考附图描述根据本申请具体实施例的管路连接结构1。
在本申请的一些具体实施例中，如图1-图7所示，根据本申请实施例的管路连接结构1包括第一连接块100、第二连接块200、紧固件300和通孔。
可选地，所述紧固件300贯穿所述通孔，所述紧固件300不少于两个，第一连接块100和第二连接块200均设有不少于两个的所述通孔。这样相比相关技术中的管路连接结构，可以使第一连接块100和第二连接块200的预紧力分布较均匀，使第一连接块100和第二连接块200的受力更加均衡，避免出现局部应力过大的情况，便于提高管路连接结构1的结构稳定性，避免第一连接块100和第二连接块200受力不均而发生翘起分离，从而可以降低管路连接结构1发生泄漏的风险，便于提高管路连接结构1的密封可靠性，提高管路连接结构1的使用性能。
具体地，如图2所示，第一连接块100的所述通孔包括第一通孔140和第二通孔150，第一通道112和第二通道111位于两个第一通孔140和第二通孔150之间，第二连接块200的所述通孔包括第三通孔250和第四通孔260，第三通道212和第四通道211位于两个第三通孔250和第四通孔260之间。这样可以进一步使第一连接块100和第二连接块200的受力更加均匀，进一步便于提高管路连接结构1的密封效果。
更为具体地，所述紧固件300包括第一紧固件310、第二紧固件320，第一连接块100通过配合在第一通孔140和第三通孔250内的第一紧固件310以及配合在第二通孔150和第四通孔260内的第二紧固件320与第二连接块200相连。这样不仅可以将第一连接块100和第二连接块200牢固的安装在一起，保证第一连接块100和第二连接块200之间固定连接的可靠性和稳定性，而且可以便于管路连接结构1的安装，提高管路连接结构1的拆装效率，不仅能够提高管路连接结构1的装配效率，而且在管路连接结构1发生故障时，可以快速地进行拆装。
进一步地，如图5所示，管路连接结构1还包括第三紧固件330，第三紧固件330位于第一通道112和第二通道111之间且位于第三通道212和第四通道211之间。这样可以使管路连接结构1的受力更加均匀，进一步便于提高管路连接结构1的连接可靠性，进一步便于提高管路连接结构1的密封性能，减小管路连接结构1发生泄漏的风险。
更进一步地，如图5所示，第一连接块100包括第一子块160和第二子块170，第二通道111设于第一子块160，第一通道112设于第二子块170，第一子块160设有第五通孔161，第二子块170设有第六通孔171，第二连接块200设有第七通孔270，第三紧固件330配合在第五通孔161、第六通孔171和第七通孔270内。这样不仅便于提高管路连接结构1的连接可靠性，而且由于安装时是先安装其中一个子块再安装另一个子块，可以避免由于配合误差或装配时倾斜发生卡死的情况，便于管路连接结构1的顺畅拆装。
具体而言，第一通孔140位于第二通道111的一侧且第五通孔161位于第二通道111 的另一侧。第六通孔171位于第一通道112的一侧且第二通孔150位于第一通道112的另一侧。第五通孔161和第六通孔171位于第二通道111和第一通道112之间。第七通孔270位于第四通道211和第三通道212之间。第五通孔161、第六通孔171和第七通孔270顺次连通。
具体地，如图7所示，第一子块160具有延伸部162，第二子块170的至少一部分夹持在延伸部162和第二连接块200之间。这样可以利用延伸部162在安装第二子块170时进行定位，不仅可以简化安装操作，便于第二子块170的顺畅安装，而且可以提高第二子块170安装后的稳定性和可靠性。
更为具体地，如图6所示，延伸部162设有缺口163，第二子块170设有凸台172，凸台172配合在缺口163内。这样不仅可以利用缺口163和凸台172对第二子块170进行定位，便于第二子块170的设置，而且可以避免第一子块160和第二子块170发生干涉，便于第一子块160和第二子块170顺畅地装配成型。
如图7所示，凸台172的端面与第一子块160远离第二连接块200的表面平齐。这样便于提高管路连接结构1外观的整体性和美观性。
具体地，如图7所示，管路连接结构1还包括密封环400。更进一步地，密封环400为膨胀石墨垫圈。
可选地，如图7所示，第一连接块100朝向第二连接块200的表面设有围绕第一通道110的第一凸台130，第一定位环槽120形成在第一凸台130的端面，第二连接块200朝向第一连接块100的表面设有围绕第二通道210的第二凹槽230，第二定位环台220形成在第二凹槽230的底壁，第一凸台130配合在第二凹槽230内。
如图8-图14所示，根据本申请另一实施例的管路连接结构1包括第一连接块100、第二连接块200和紧固件300。
第一连接块100设有第一通道110，第二连接块200设有第二通道210，第二通道210与第一通道110连通。第一连接块100朝向第二连接块200的表面包括凸台101，凸台101设有定位凸起180，第二连接块200包括定位槽280，定位凸起180配合在定位槽280内，定位凸起180与凸台101为一体成型。第一连接块100和第二连接块200通过紧固件300相连。定位凸起180与定位槽280的侧壁装配总间隙为H，H的宽度为0mm-0.15mm。
这里需要理解的是，定位凸起180与定位槽280的侧壁装配总间隙H等于定位凸起180与定位槽280一侧的侧壁间隙H1与定位凸起180与定位槽280另一侧的侧壁间隙H2之和。
本实施例的管路连接结构1，通过设置定位凸起180和定位槽280，在通过紧固件300连接第一连接块100和第二连接块200时，可以利用定位凸起180和定位槽280对第一连接块100和第二连接块200在竖直方向的转动自由度进行定位，相比相关技术中的管路连接结构，可以避免第一连接块100和第二连接块200发生相对转动而产生错位，便 于第一连接块100和第二连接块200的顺畅安装，便于提高管路连接结构1的装配效率，便于提高管路连接结构1安装后的稳定性和可靠性。同时，可以省去设置例如定位销等额外的定位结构，便于简化管路连接结构1的结构，提高管路连接结构1的生产效率。
并且，通过设置定位凸起180和定位槽280，相比相关技术中的管路连接结构，可以利用定位凸起180和定位槽280对第一连接块100和第二连接块200进行定位，防止第一连接块100和第二连接块200在压力的作用下翘起，便于提高管路连接结构1的结构可靠性，避免第一连接块100和第二连接块200发生翘起分离，从而可以降低管路连接结构1发生泄漏的风险，便于提高管路连接结构1的密封可靠性，便于提高管路连接结构1的工作性能。
此外，通过设置定位凸起180和定位槽280，相比相关技术中的管路连接结构，能够提高管路连接结构1的密封性能，便于管路连接结构1应用在密封要求高的场合，例如应用到使用二氧化碳为冷媒的空调系统中，这样便于提高空调系统的工作性能，便于提高空调系统的工作效率，减小空调系统的体积，例如可以减小空调系统中压缩机、蒸发器和冷凝器的体积，从而减小空调系统的占用空间，便于空调系统的设置，便于提高空调系统的工作可靠性和稳定性。
同时，定位凸起180与定位槽280的侧壁装配总间隙为H，H的宽度为0mm-0.15mm。这样可以减少安装定位凸起180与定位槽280之间的摩擦力，便于定位凸起180顺畅地配合在定位槽280内，提高管路连接结构1的结构精度和位置准确性。
因此，根据本实施例的管路连接结构1具有使用方便、密封效果好等优点。
在本申请的一些具体实施例中，如图8-图14所示，本实施例的管路连接结构1包括第一连接块100、第二连接块200和紧固件300。
具体地，定位凸起180与定位槽280的接触面，近紧固件300一侧包括位于定位凸起180侧壁的第一配合面181和位于定位槽280侧壁的第二配合面281，第一配合面181与第二配合面281之间间隙为0mm-0.075mm。这样便于提高定位凸起180与定位槽280之间的配合均匀性，进一步便于定位凸起180顺畅地配合在定位槽280内。
具体地，如图8-图13所示，在第一连接块100的长度方向，定位凸起180和定位槽280位于紧固件300的一侧且第一通道110和第二通道210位于紧固件300的另一侧。由于两个连接块在紧固件300的一侧翘起时，在紧固件300的另一侧会受到反向的作用力，这样将定位凸起180和定位槽280设在紧固件300的另一侧更有利于防止第一连接块100和第二连接块200在冷媒压力的作用下发生翘起。这样便于定位凸起180和定位槽280在紧固件300的一侧对第一连接块100和第二连接块200进行定位，限制第一连接块100和第二连接块200在紧固件300的另一侧受冷媒压力的作用而发生相对转动和翘曲变形，提高定位凸起180和定位槽280的定位准确性和可靠性，从而进一步提高管路连接结构1的密封效果。
更为具体地，如图8-图13所示，定位凸起180设在第一连接块100，第一连接块100设有第八通孔290，定位槽280设在第二连接块200，第二连接块200设有第九通孔240，第一连接块100和第二连接块200通过配合在第八通孔290和第九通孔240内的紧固件300相连，第八通孔290位于定位凸起180和第一通道110之间，第九过孔240位于定位槽280和第二通道210之间。这样不仅可以对第一连接块100和第二连接块200进行有效止挡限位，进一步避免第一连接块100和第二连接块200发生翘起分离，便于提高管路连接结构1的结构稳定性，进一步提高管路连接结构1的密封性能，而且可以将第一连接块100和第二连接块200牢固的安装在一起，保证第一连接块100和第二连接块200之间固定连接的可靠性和稳定性，便于提高管路连接结构1的拆装效率，便于在管路连接结构1发生故障时可以快速地进行拆装。
当然，定位凸起180和定位槽280的位置也可以互换。
根据本申请的一个实施例，如图8和图9所示，定位槽280为矩形槽且长度方向垂直于第九过孔240的中心轴线与第二通道210中心轴线的假想连线，定位凸起180为长方体且长度方向垂直于第八通孔290的中心轴线与第一通道110中心轴线的假想连线。这样便于定位凸起180和定位槽280相配合，便于对第一连接块100和第二连接块200进行可靠限位，进一步提高管路连接结构1的密封性能。
具体地，如图9所示，第二连接块200包括第一侧表面201和与第一侧表面201大体平行设置的第二侧表面202，定位槽280的两端分别位于第一侧表面201和第二侧表面202。这样便于定位凸起180和定位槽280的加工成型，便于提高管路连接结构1的生产效率。
根据本申请的另一个实施例，如图10所示，定位槽280为圆形槽且中心轴线与第九过孔240的中心轴线平行，定位凸起180为圆柱体且中心轴线与第八通孔290的中心轴线平行。这样便于定位凸起180和定位槽280相配合，进一步便于第一连接块100和第二连接块200的顺畅安装，便于对第一连接块100和第二连接块200进行可靠限位，进一步便于提高管路连接结构1的密封效果。
具体地，定位凸起180为三个且在第二连接块200朝向第一连接块100的表面上间隔设置，定位槽280为三个且三个定位凸起180分别配合在三个定位槽280内。这样可以使第一连接块100和第二连接块200的受力更加均匀，而且可以提高管路连接结构1的结构稳定性。
当然，如图12所示，定位槽280在槽深度方向的投影可以为V型，当然也可以为其他形状。可选地，如图11所示，定位槽280可以为多个且在第二连接块200上间隔设置，定位凸起180可以为多个且在第一连接块100上间隔设置。这样可以使第一连接块100和第二连接块200的受力更加均匀，提高管路连接结构的稳定性。
具体地，定位凸起180间隙配合在定位槽280内且配合间隙为0-0.15毫米。这样便 于定位凸起180顺畅地配合在定位槽280内。
更为具体地，定位凸起180和定位槽280的单边配合间隙分别为0-0.075毫米。
可选地，如图13所示，第一连接块100朝向第二连接块200的表面设有围绕第一通道110的第一定位环槽120，第二连接块200朝向第一连接块100的表面设有围绕第二通道210的第二定位环台220，第二定位环台220配合在第一定位环槽120内。
进一步地，如图13所示，管路连接结构1还包括密封环400。更进一步地，密封环400为膨胀石墨垫圈。
具体地，如图13所示，第一连接块100朝向第二连接块200的表面设有围绕第一通道110的第一凸台130，第一定位环槽120形成在第一凸台130的端面，第二连接块200朝向第一连接块100的表面设有围绕第二通道210的第二凹槽230，第二定位环台220形成在第二凹槽230的底壁，第二凸台230配合在第一凹槽130内。
如图15-图23所示，根据本申请另一实施例的管路连接结构1包括第一连接块100、第二连接块200、紧固件300和密封环400。
第一连接块100设有第一通道110，第二连接块200设有第二通道210，第二通道210与第一通道110连通。第一连接块100朝向第二连接块200的表面设有围绕第一通道110的第一定位环槽120，第二连接块200朝向第一连接块100的表面设有围绕第二通道210的第二定位环台220，第二定位环台220配合在第一定位环槽120内，第一定位环槽120具有第一槽底面122、第一槽内侧壁123和第一槽外侧壁124，第一槽底面122与第一槽外侧壁124相连，第二定位环台220具有第二台端面221第二台内侧壁和第二台外侧壁223，第二台端面221与第二台内侧壁第二台外侧壁223相连。第一连接块100和第二连接块200通过紧固件300相连。密封环400配合在第一定位环槽120内且密封环400设有凸出部410，凸出部410沿密封环400周向设置，第二台端面221和第一槽底面122中的至少一个具有密封槽121，密封槽121与凸出部410形状适配，第二台外侧壁223与第一槽外侧壁124配合，第二台内侧壁密封环400的外周面与第一槽外侧壁124配合，密封环400的内周面与第一槽内侧壁123配合，密封环400在其轴向上夹持在第一槽底面122与第二台端面221之间。
这里需要理解的是，“第二台外侧壁223与第一槽外侧壁124配合”中配合包括重叠配合和不重叠配合两种情况。
根据本申请实施例的管路连接结构1，通过设置第一定位环槽120、第二定位环台220和密封环400,使密封环400设有凸出部410，第二台端面221与第一槽底面122中的至少一个具有车削加工而成的密封槽121，密封槽121与凸出部410形状适配且与凸出部410相配合，这样可以利用凸出部410和密封槽121对管路连接结构1进行密封，相比相关技术中的管路连接结构，通过使密封环400设有凸出部410，可以利用凸出部410平衡由于紧固件300在连接结构1的一侧加压，连接结构1的另一侧受理不均、预紧力不够 的问题，由于减小了密封环400与第一定位环槽120和第二定位环台220中的至少一个的接触面积，在紧固件300的压力不变的情况下，密封环400的接触面受力增大，提高密封环400与第一定位环槽120和第二定位环台220中的至少一个之间的结合力，提高管路连接结构1的密封可靠性，可以使密封环400的密封效果更好，提高管路连接结构1的工作性能。
并且，通过使密封环400设有凸出部410，相比相关技术中的管路连接结构，当密封环400被挤压时，凸出部410具有截面突变的特点，这样便于密封环400受压产生弹性变形，提高密封环400的弹性变形能力，不仅施加较小的预紧力就能获得较大的接触面压，便于减小管路连接结构1所需的预紧力，而且在第一连接块100和第二连接块200受力发生分离时，密封环400可以通过回弹量弥补第一连接块100和第二连接块200的分离量，从而避免管路连接结构1发生泄漏，进一步提高管路连接结构1的密封可靠性。
此外，通过设置凸出部410和密封槽121，相比相关技术中的管路连接结构，能够提高管路连接结构1的密封性能，便于管路连接结构1应用在密封要求高的场合，例如应用到使用二氧化碳为冷媒的空调系统中，这样便于提高空调系统的工作性能，便于提高空调系统的工作效率，减小空调系统的体积，例如可以减小空调系统中压缩机、蒸发器和冷凝器的体积，从而减小空调系统的占用空间，便于空调系统的设置，便于提高空调系统的工作可靠性和稳定性。
因此，根据本申请实施例的管路连接结构1具有使用方便、密封效果好等优点。
在本申请的一些具体实施例中，如图15-图23所示，本实施例的管路连接结构1包括第一连接块100、第二连接块200、紧固件300和密封环400。
具体地，第二定位环台220还具有第二台外侧壁223，第二台端面221分别与第二台内侧壁222和第二台外侧壁223相连。
根据本申请的一个实施例，如图23所示，凸出部410具有由密封环400的内周面402沿密封环400的轴向向外，且沿密封环400的径向向外倾斜延伸的第一斜面411，和由密封环400的外周面沿密封环400的轴向向外，且沿密封环400的径向向内倾斜延伸的第二斜面412，第一斜面411与第二斜面412相交，密封槽121具有第三斜面125和第四斜面126，第三斜面125和第四斜面126之间的夹角大于第一斜面411和第二斜面412之间的夹角。这样便于减小密封环400的密封接触面积，便于密封环400受压产生弹性变形，进一步便于提高密封环400的密封性能。
根据本申请的另一个实施例，凸出部410具有分别与密封环400的内周面402和外周面401相连且沿密封环400的轴向向外凸出的圆弧面。这样同样便于减小密封环400的密封接触面积，易于密封环400发生弹性变形，进一步提高密封环400的密封效果。
具体地，如图16所示，如图17所示，凸出部410为两个且分别位于密封环400轴向上的两端，第二台端面221和第一槽底面122均具有与凸出部410形状适配的密封槽 121。这样便于减小密封环400与第一连接块100和第二连接块200的接触面积，提高密封环400的弹性变形能力，进一步便于提高管路连接结构1的密封性能。同时，便于密封环400与第一连接块100和第二连接块200相配合，可以防止密封环400发生错装，便于密封环400的顺畅安装，便于提高密封环400的安装效率。
根据本申请的另一个实施例，如图18和图19所示，密封环400在其径向上的截面为阶梯型，第二台端面221和第一槽底壁122均为与密封环400的端面适配的阶梯型，密封环400具有第一踏面413、第二踏面414、第三踏面415和第四踏面416以及第一踢面417和第二踢面418，密封环400的内周面402分别与第一踏面413和第三踏面415相连，第一踢面417分别与第一踏面413和第二踏面414相连，密封环400的外周面401分别与第二踏面414和第四踏面416相连，第二踢面418分别与第四踏面416和第三踏面415相连。具体而言，如图18所示，密封环400的第一踢面417和第二踏面414构成凸出部410，密封环400的第二踢面418和第三踏面415构成凸出部410。这样同样便于减小密封环400与第一连接块100和第二连接块200的接触面积，提高密封环400的弹性变形能力，进一步提高管路连接结构1的密封可靠性。
可选地，如图15和图16所示，第一连接块100朝向第二连接块200的表面设有围绕第一通道110的第一凸台130，第一定位环槽120形成在第一凸台130的端面，第二连接块200朝向第一连接块100的表面设有围绕第二通道210的第二凹槽230，第二定位环台220形成在第二凹槽230的底壁，第一凸台130配合在第二凹槽230内，第一凸台130具有第一台内端面131、第一台外端面132和第一台外侧壁133，第一台内端面131分别与第一通道110的内周面和第一槽内侧壁123相连，第一台外端面132分别与第一台外侧壁133和第一槽外侧壁124相连，第二凹槽230具有第二槽内底面231、第二槽外底面232和第二槽外侧壁233，第二槽外底面232分别与第二台外侧壁223和第二槽外侧壁233相连，第二槽内底面231分别与第二通道210的内周面和第二定位环台220的第二台内侧壁222相连，第二槽外侧壁233与第一台外侧壁133配合，第一台外端面132与第二槽外底面232在第一通道110和第二通道210的轴向上相对，第一台内端面131与第二槽内底面231在第一通道110和第二通道210的轴向上相对。这样不仅便于第一定位环槽120和第二定位环台220的设置，而且可以利用第一凸台130和第二凹槽230对第一连接块100和第二连接块200进行定位和导向，便于第一连接块100和第二连接块200的顺畅装配，便于提高管路连接结构1的装配准确性和装配效率。同时，可以使第一连接块100和第二连接块200的受力更加均匀，避免造成局部应力集中，从而可以进一步防止第一连接块100和第二连接块200的一侧发生翘起。
可选地，第一凸台130间隙配合在第二凹槽230内。
当然，第一定位环槽120和第二定位环台220的位置可以互换，第一凸台130与第二凹槽230的位置也可以互换。
更为具体地，第一通道110和第二通道210的中心轴线重合，第一凸台130、第一定位环槽120与第一通道110的中心轴线重合，第二凹槽230、第二定位环台220与第二通道210的中心轴线重合。这样不仅便于管路连接结构1的制造和装配，便于提高管路连接结构1的结构强度和稳定性，而且便于使第一通道110与第二通道210相对应，便于减小管路内介质的阻力，使介质能够顺畅流动。
可选地，第二槽外侧壁233、第二台外侧壁223、第二台内侧壁222和第二通道210的内周面平行且间隔设置，第一台外侧壁132、第一槽内侧壁123、第一槽外侧壁124和第一通道110的内周面平行间隔设置。这样可以避免密封环400与紧固件300相接触，防止密封环400局部受力较大而发生损坏，便于对密封环400进行保护，提高密封环400的使用寿命。
可选地，密封环400为膨胀石墨垫圈。这样进一步便于提高密封环400的工作可靠性，提高密封环400的密封效果。
具体地，如图15所示，第一连接块100设有第八通孔290，第二连接块200设有第九过孔240，紧固件300为螺栓，第一连接块100和第二连接块200通过配合在第八通孔290和第九过孔240内的螺栓相连。这样可以将第一连接块100和第二连接块200牢固的安装在一起，保证第一连接块100和第二连接块200之间固定连接的可靠性和稳定性。同时，可以便于管路连接结构1的安装，提高管路连接结构1的拆装效率，不仅能够提高管路连接结构1的生产效率，而且在管路连接结构1发生故障时，可以快速地进行拆装。
下面描述根据本申请实施例的空调系统。根据本申请实施例的空调系统包括根据本申请上述实施例的管路连接结构1。
具体地，所述空调系统可以为以二氧化碳为冷媒的空调系统。
根据本申请实施例的空调系统，通过利用根据本申请上述实施例的管路连接结构1，具有使用方便、密封效果好等优点。
根据本申请实施例的空调系统的其他构成以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。在本申请的描述中，第一特征在第二特征“之上”或“之下”可以包括第一 和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。
在本申请的描述中，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本申请的实施例，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。

Claims (15)

  1. 一种管路连接结构，其特征在于，包括：
    第一连接块(100)，所述第一连接块(100)至少包括第一通道(112)和第二通道(111)；
    第二连接块(200)，所述第二连接块(200)至少包括第三通道(212)和第四通道(211)，所述第三通道与所述第一通道连通，所述第四通道与所述第二通道连通，所述第一连接块(100)朝向所述第二连接块(200)的表面设有围绕所述第一通道(112)的第一定位环槽(120)，所述第二连接块(200)朝向所述第一连接块(100)的表面设有围绕所述第二通道(111)的第二定位环台(220)，所述第二定位环台(220)配合在所述第一定位环槽(120)内；
    紧固件(300)，所述第一连接块(100)和所述第二连接块(200)通过所述紧固件(300)紧固。
  2. 根据权利要求1所述的管路连接结构，其特征在于，还包括通孔，所述紧固件(300)贯穿于所述通孔内部，所述紧固件(300)不少于两个，所述第一连接块(100)和所述第二连接块(200)均设有不少于两个的所述通孔。
  3. 根据权利要求2所述的管路连接结构，其特征在于，所述第一连接块(100)的所述通孔包括第一通孔(140)和第二通孔(150)，所述第一通道和第二通道位于两个所述第一通孔(140)和所述第二通孔(140)之间，所述第二连接块(200)的所述通孔包括第三通孔(250)和第四通孔(260)，所述第三通道和第四通道位于两个所述第三通孔(250)和所述第四通孔(260)之间，所述紧固件(300)包括第一紧固件(310)、第二紧固件(320)，所述第一连接块(100)通过配合在所述第一通孔(140)和所述第三通孔(250)内的第一紧固件(310)以及配合在所述第二通孔(140)和所述第四通孔(260)内的第二紧固件(320)相连。
  4. 根据权利要求3所述的管路连接结构，其特征在于，还包括第三紧固件(330)，所述第三紧固件(330)位于所述第一通道和所述第二通道之间且位于所述第三通道和所述第四通道之间，所述第一连接块(100)包括第一子块(160)和第二子块(170)，所述第二通道设于所述第一子块(160)，所述第一通道(112)设于所述第二子块(170)，所述第一子块(160)设有第五通孔(161)，所述第二子块(170)设有第六通孔(171)，所述第二连接块(200)设有第七通孔(270)，所述第三紧固件(330)配合在所述第五通孔(161)、第六通孔(171)和所述第七通孔(270)内。
  5. 根据权利要求4所述的管路连接结构，其特征在于，所述第一子块(160)具有延伸部(162)，所述第二子块(170)的至少一部分夹持在所述延伸部(162)和所述第二连接块(200)之间，所述延伸部(162)一侧设有缺口(163)，所述第二子块设有凸 台(172)，所述凸台(172)配合在所述缺口(163)内。
  6. 根据权利要求1-5中任一项所述的管路连接结构，其特征在于，所述第一连接块(100)朝向所述第二连接块(200)的表面包括凸块(101)，所述凸块(101)设有定位凸起(180)，所述第二连接块(200)朝向所述第一连接块(100)的表面包括定位槽(280)，所述定位凸起(180)配合在所述定位槽(280)内，所述定位凸起(180)与所述凸块(101)为一体成型，所述定位凸起(180)与所述定位槽(280)的侧壁装配总间隙为H，H的宽度为0mm-0.15mm。
  7. 根据权利要求6所述的管路连接结构，其特征在于，所述定位凸起(180)与所述定位槽(280)的接触面，近紧固件一侧包括位于所述定位凸起(180)侧壁的第一配合面(181)和位于所述定位槽(280)侧壁的第二配合面(281)，所述第一配合面(181)与所述第二配合面(280)之间间隙为0mm-0.075mm。
  8. 根据权利要求6所述的管路连接结构，其特征在于，在所述第一连接块(100)的长度方向，所述定位凸起(180)和所述定位槽(280)位于所述紧固件(300)的一侧且所述第一通道(112)和所述第二通道位于所述紧固件(300)的另一侧。
  9. 根据权利要求8所述的管路连接结构，其特征在于，所述第二连接块(200)包括第一侧表面和与第一侧表面大体平行设置的第二侧表面，所述定位槽(280)的两端分别位于所述第一侧表面和所述第二侧表面，或所述定位槽(280)为圆形槽，所述定位凸起(180)为圆柱体。
  10. 根据权利要求1-9中任一项所述的管路连接结构，其特征在于，还包括密封环(400)，所述第一定位环槽(120)具有第一槽底面(122)、第一槽内侧壁(123)和第一槽外侧壁(124)，所述第一槽底面(122)与所述第一槽外侧壁(124)相连，所述第二定位环台(220)具有第二台端面(221)第二台内侧壁(222)和第二台外侧壁(223)，所述第二台端面(221)与第二台内侧壁(222)所述第二台外侧壁(223)相连，所述密封环(400)配合在所述第一定位环槽(120)内且所述密封环(400)设有凸出部(410)，所述凸出部(410)沿所述密封环(400)周向设置，所述第二台端面和(221)所述第一槽底面(122)中的至少一个具有密封槽(121)，所述密封槽(121)与所述凸出部(410)形状适配，所述第二台外侧壁(223)与所述第一槽外侧壁(124)配合，第二台内侧壁(222)所述密封环(400)的外周面与所述第一槽外侧壁(124)配合，所述密封环(400)的内周面与所述第一槽内侧壁(123)配合，所述密封环(400)在其轴向上夹持在所述第一槽底面(122)与所述第二台端面(221)之间，所述密封环(400)为膨胀石墨垫圈。
  11. 根据权利要求10所述的管路连接结构，其特征在于，所述凸出部(410)具有由所述密封环(400)的内周面沿所述密封环(400)的轴向向外，且沿所述密封环(400)的径向向外倾斜延伸的第一斜面(411)，和由所述密封环(400)的外周面沿所述密封环 (400)的轴向向外，且沿所述密封环(400)的径向向内倾斜延伸的第二斜面(412)，所述第一斜面(411)与所述第二斜面(412)相交，所述密封槽(121)具有第三斜面和第四斜面，所述第三斜面和所述第四斜面之间的夹角大于所述第一斜面和所述第二斜面之间的夹角。
  12. 根据权利要求11所述的管路连接结构，其特征在于，所述凸出部(410)具有分别与所述密封环(400)的内周面和外周面相连且沿所述密封环(400)的轴向向外凸出的圆弧面。
  13. 根据权利要求10所述的管路连接结构，其特征在于，所述凸出部(410)为两个且分别位于所述密封环(400)轴向上的两端，所述第二台端面(221)和所述第一槽底面(122)均具有与所述凸出部形状适配的密封槽(121)。
  14. 根据权利要求13所述的管路连接结构，其特征在于，所述密封环(400)在其径向上的截面为阶梯型，所述第二台端面(221)和所述第一槽底面(122)均为与所述密封环(400)的端面适配的阶梯型，所述密封环(400)具有第一踏面(413)、第二踏面(414)、第三踏面(415)和第四踏面(416)以及第一踢面(417)和第二踢面(418)，所述密封环(400)的内周面分别与所述第一踏面(413)和第三踏面(415)相连，所述第一踢面(417)分别与所述第一踏面(413)和第二踏面(414)相连，所述密封环(400)的外周面分别与所述第二踏面(414)和所述第四踏面(416)相连，所述第二踢面(418)分别与所述第四踏面(416)和所述第三踏面(415)相连。
  15. 根据权利要求10所述的管路连接结构，其特征在于，所述第一连接块(100)朝向所述第二连接块(200)的表面设有围绕所述第一通道(112)的第一凸台(130)，所述第一定位环槽(120)形成在所述第一凸台(130)的端面，所述第二连接块(200)朝向所述第一连接块(100)的表面设有围绕所述第二通道的第二凹槽(230)，所述第二定位环台形成在所述第二凹槽(230)的底壁，所述第一凸台(130)配合在所述第二凹槽(230)内，所述第一凸台(130)具有第一台内端面(131)、第一台外端面(132)和第一台外侧壁(133)，所述第一台内端面(131)分别与所述第一通道(112)的内周面和所述第一槽内侧壁相连，所述第一台外端面(132)分别与所述第一台外侧壁(133)和所述第一槽外侧壁相连，所述第二凹槽(230)具有第二槽内底面(231)、第二槽外底面(232)和第二槽外侧壁(233)，所述第二槽外底面(232)分别与所述第二台外侧壁和所述第二槽外侧壁(233)相连，所述第二槽内底面(231)分别与所述第二通道的内周面和所述第二定位环台(220)的第二台内侧壁相连，所述第二槽外侧壁(233)与所述第一台外侧壁配合，所述第一台外端面(132)与所述第二槽外底面(232)在所述第一通道(112)和所述第二通道(111)的轴向上相对，所述第一台内端面(131)与所述第二槽内底面(231)在所述第一通道(112)和所述第二通道(111)的轴向上相对。
PCT/CN2019/095645 2018-07-11 2019-07-11 管路连接结构 WO2020011239A1 (zh)

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