EP1249672A2 - Mehrstromverflüssiger mit Unterkühlung - Google Patents

Mehrstromverflüssiger mit Unterkühlung Download PDF

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Publication number
EP1249672A2
EP1249672A2 EP02251912A EP02251912A EP1249672A2 EP 1249672 A2 EP1249672 A2 EP 1249672A2 EP 02251912 A EP02251912 A EP 02251912A EP 02251912 A EP02251912 A EP 02251912A EP 1249672 A2 EP1249672 A2 EP 1249672A2
Authority
EP
European Patent Office
Prior art keywords
plugging
header pipe
flow type
type sub
desiccant
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP02251912A
Other languages
English (en)
French (fr)
Other versions
EP1249672A3 (de
Inventor
Hirotaka Kado
Kenichi Wada
Hiromitsu Kamishima
Toshiharu Shinmura
Daisuke Watase
Shigeru Oakada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanden Corp
Original Assignee
Sanden Corp
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 JP2001111202A external-priority patent/JP2002310536A/ja
Priority claimed from JP2001152248A external-priority patent/JP2002350001A/ja
Priority claimed from JP2001183033A external-priority patent/JP2002372342A/ja
Priority claimed from JP2001293968A external-priority patent/JP2003106709A/ja
Application filed by Sanden Corp filed Critical Sanden Corp
Publication of EP1249672A2 publication Critical patent/EP1249672A2/de
Publication of EP1249672A3 publication Critical patent/EP1249672A3/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/003—Filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F25B2339/0441—Condensers with an integrated receiver containing a drier or a filter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/16—Receivers
    • F25B2400/162—Receivers characterised by the plug or stop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F25B40/02—Subcoolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2220/00—Closure means, e.g. end caps on header boxes or plugs on conduits

Definitions

  • the present invention relates to a multi-flow type sub cool condenser used as a condenser in a vehicular air conditioning apparatus. More particularly, this invention relates to a multi-flow type sub cool condenser whose header pipe includes a desiccant.
  • a multi-flow type sub cool condenser is often used in a vehicular air conditioning apparatus.
  • the so-called sub cool condenser generally has a portion for heat exchange called the sub cool portion that cools further the liquefied refrigerant.
  • the liquefied refrigerant Before flowing into the sub cool portion, the liquefied refrigerant must be accumulated somewhere.
  • the vessel for accumulating the liquefied refrigerant before sub-cooling is called the liquid tank.
  • the liquid tank is disposed next to a header pipe of the condenser. This conventional structure is disadvantageous because as the condenser and the liquid tank are separate from each other, their sizes are limited due to the constraint on the volume that a refrigeration circuit can occupy in a vehicle.
  • the refrigerant that has been liquefied in the condenser is then passed through a drier including desiccant for removal of water content.
  • a drier including desiccant for removal of water content.
  • the drier vessel itself conventionally is also provided as a separate vessel from the condenser. So this conventional structure is also disadvantageous with respect to the volume of space occupied in the vehicle.
  • the desiccant it needs a relatively frequent repair or exchange because of its temporal change in quality or deterioration.
  • the first object of the present invention is to provide a multi-flow type condenser that is equipped with a sub cool core.
  • the multi-flow type sub cool condenser according to the present invention is designed to have a header pipe of which the lower portion functions as a liquid tank.
  • the second object of the present invention is to provide a multi-flow type condenser that includes a desiccant.
  • the multi-flow type sub cool condenser according to the present invention is designed to have a header pipe containing a desiccant and functioning as a drier vessel too.
  • the third object of the present invention is to provide a multi-flow type condenser that is equipped with a plugging mechanism at one end of the header pipe that allows easy repair of the desiccant.
  • the multi-flow type sub cool condenser according to the present invention discloses four kinds of plugging mechanisms.
  • the first plugging mechanism comprises a bracket member that is fixed to the end of the header pipe and in which a female screw is provided, and plugging member around which a male screw is provided.
  • the second plugging mechanism comprises a block member which is fixed to the end of the header pipe and in which an internally bored groove is provided, and plugging member having protrusions that engage with the internally bored groove.
  • the third plugging mechanism comprises a block member that is fixed to the end of the header pipe and that has a couple of slits at diametrically opposing positions, a U-shaped stopper member that engages with the two slits and plugging member around which circumstance is provided a circular groove.
  • the fourth plugging mechanism comprises a flange member that is fixed to the end of the header pipe and that has a female screw member attached to its both sides, and plugging member that can be fixed to the flange member by screws.
  • a multi-flow type sub cool condenser according to the first embodiment of the present invention is shown.
  • a multi-flow type sub cool condenser will be called simply a condenser, for simplicity.
  • the condenser 1000 comprises mainly the first header pipe 1, the second header pipe 2, a plurality of flat heat transfer tubes 4 and a plurality of corrugate fins 5.
  • the first header pipe 1 and the second header pipe 2 are interconnected via the plurality of heat transfer tubes 4.
  • the plurality of heat transfer tubes4 and the plurality of corrugated fins 5 are stacked alternately.
  • the first header pipe 1 is sectioned into upper pipe portion lb and lower pipe portion la by a partition plate 19.
  • the second header pipe 2 is sectioned into upper pipe portion 2b and lower pipe portion 2a by a partition plate 8.
  • an inlet pipe 6 is connected above and near the partition plate 8.
  • the refrigerant flows into the upper pipe portion 2b of the second header pipe 2 via the inlet pipe 6 from an external refrigeration circuit (not shown).
  • an outlet pipe 7 is further connected below and near the partition plate 8.
  • the refrigerant flows out from the lower pipe portion 2a of the second header pipe 2 via the outlet pipe 1 to the external refrigeration circuit (not shown).
  • the upper portion of the condenser 1000 sectioned by the two partition plates 19 and 8 is called a refrigerant condensing core 9 in this specification.
  • the lower portion of the condenser 1000 sectioned by the two partition plates 19 and 8 is called a sub cool core 10 in this specification. That is, the refrigerant condensing core 9 comprises the upper pipe portion 2b of the second pipe header 2 and the upper pipe portion lb of the first header pipe 1 and the portion of the plurality of the heat transfer tubes 4 that interconnect them.
  • the sub cool core 10 comprises the lower pipe portion 2a of the second pipe header 2 and the lower pipe portion 1a of the first header pipe 1 and the remaining portion of the plurality of the heat transfer tubes 4 that interconnect them.
  • the refrigerant condensing core 9 functions to condensate and liquefy the refrigerant.
  • the refrigerant flows from the upper pipe portion 2b of the second header pipe 2 to the upper pipe portion 1b of the first header pipe 1 via the heat transfer tubes 4 that belong to the refrigerant condensing core 9.
  • the refrigerant flowing into the upper pipe portion 1b of the first header pipe 1 is liquefied and accumulates in the lower pipe portion 1a of the first header pipe 1.
  • the sub cool core 10 functions to further cool the liquefied refrigerant. That is, the liquefied refrigerant flows from the lower pipe portion 1a of the first header pipe 1 to the lower pipe portion 2a of the second header pipe 2 via the remaining heat transfer tubes 4 that belong to the sub cool core 10, thereby being further cooled.
  • a bracket 25 is fixedly brazed to hermetically seal off the header pipe 1.
  • two brackets 23 and 24 are fixedly brazed to hermetically seal off the header pipe 2.
  • a plugging mechanism 100 according to the first embodiment of the present invention is provided.
  • the plugging mechanism 100 that can be fastened and unfastened at will comprises a bracket member 123 that is fixedly brazed to the lower end of the first header pipe 1 and a plugging member 124 that is screwed into the bracket member 123.
  • the partition plate 19 provided in the first header pipe 1 has a hole through which a container 14 containing a desiccant passes.
  • the material constituting the container 14 can pass a fluid freely through its surface.
  • a desiccant 13 is contained in the container 14 .
  • the desiccant 13 may be shaped as one solid bar integrally by an adhesive or by a heat process as long as it can passes the refrigerant through its interior.
  • the desiccant may be granular material contained in a fibrous bag.
  • the container 14 comprises a skeleton 15 having cylindrical lattice and mesh portion 16.
  • the container 14 may comprises a cylinder having punched wall.
  • the refrigerant having passed through the heat transfer tubes 4 of the refrigerant condensing core 9 flows into the interior of the upper pipe portion lb of the first header pipe 1 as indicated by arrow 12.
  • the refrigerant flowing into the upper pipe portion lb further flows through the interior of the container 14 and the desiccant 13. Then the water content in the refrigerant is removed.
  • the refrigerant having passed through the heat transfer tubes 4 of the refrigerant condensing core 9 is in a heavy mist state.
  • the refrigerant in the mist state accumulates in the lower pipe portion la and lower portion of the upper pipe portion lb of the first header pipe 1.
  • the surface of the accumulated liquid refrigerant is indicated by a numeral 17.
  • liquid refrigerant accumulating portion 11 the interior of the lower pipe portion la of the first header pipe 1 is called as liquid refrigerant accumulating portion 11. in this specification.
  • the plugging member 124 comprises rod portion 124c, sealing portion 124b and male screw portion 124a.
  • the rod portion 124c is used for fixing the condenser 1000 to a vehicular body by inserting it into a hole provided in a vehicular frame, Around the sealing portion 124b an O-ring 125 is fitted for hermetical sealing.
  • bracket member 123 One end of the bracket member 123 is fixedly brazed on the lower end 1a1 of the first header pipe 1.
  • a female screw On the interior wall of the bracket member 123, the plugging mechanism 100 can fasten the plugging member 124.
  • the plugging mechanism 100 By screwing the plugging member 124 off the bracket member 123, the plugging mechanism 100 can unfasten the plugging member 124. In this way, the repair or the maintenance of the desiccant 13 can be done.
  • FIG. 3 a detailed illustration of the supporting structure of the container 14 by the partition plate 19 is depicted.
  • a flange 21 is provided and it engages with the partition plate 19.
  • a hole 20 limits the radial movement of the container 14, and the engagement of the flange 21 and the partition plate 19 limits the axial movement of the container 14.
  • the container 14 comprises a thin diameter portion 14a and a thick diameter portion 14b.
  • a shoulder portion between the thin diameter portion 14a and the thick diameter portion 14b engages with the partition plate 19.
  • a hole 20 limits the radial movement of the container 14, and the engagement of the shoulder portion and the partition plate 19 limits the axial movement of the container 14.
  • a perspective view of the skeleton 15 of the container 14 is illustrated.
  • FIG. 6 another way for providing a gap between the ends of the heat transfer tubes 4 that protrude into the interior of the first header pipe 1 and the surface of the container 14 of the desiccant 13, is illustrated.
  • Fig. 7 is the axial cross sectional view of the Fig. 6.
  • the cross sectional shape of the container 14 is circle.
  • the ends 4a of the heat transfer tubes 4 that protrude into the interior of the first header pipe 1 are cut along a similar curve to the axial cross sectional shape of the container 14. This cut line 4a provides the gap 18' so that the refrigerant coming from the heat tubes 4 can flow smoothly into the interior of the first header pipe 1 and the interior of the container 14.
  • the first header pipe 1 containing a desiccant 42 formed as one bar integrally by an adhesive is illustrated.
  • the desiccant 42 is illustrated in a perspective view.
  • the cross section of the desiccant 42 integrally formed as one bar or the cross section of the container 14 of the desiccant may be circle, generally circle, oval, or half circle.
  • a condenser 1000 according to the second embodiment of the present invention is shown. To the same parts with the first embodiment, the same numerals are attached, and their explanations are omitted.
  • a bracket 26 is fixedly brazed on the header pipe 1 like the other brackets 24 and 23.
  • the plugging mechanism 200 comprises a generally cylindrical block member 240 that is fixedly brazed to the upper end of the first header pipe 1 and a plugging member 243 that is screwed into the block member 240.
  • the lower point of the container 14 is formed in a tapered form so as to make it easy to insert the container 14 through the hole 20 of the partition plate 19.
  • the container 14 of the desiccant can be removed or inserted through a central hole 280 of the block member 240 that is fixed to an upper end 1b1 of the first header pipe 1.
  • An adaptor member may be disposed to hold the upper end of the container 14 between the lower surface of the plugging member 243 and the upper end of the container 14.
  • the only engagement between the container 14 and the hole 20 of the partition plate 19 can support the container 14 and the desiccant 13 without using the extra adaptor member.
  • the structure of the plugging member 243 is as shown in Fig. 12.
  • a knob 247 may be provided so as to make it possible to screw manually the plugging member 243 into the block member 240 or to screw it off manually.
  • rectangular projections 244 that protrude radially outwardly from the center are provided.
  • Fig. 13 a longitudinal cross sectional view of the block member 240 is shown.
  • a central hole 280 is bored.
  • a tapered surface 291 is connected to the upper portion of the central hole 280 .
  • an internally bored groove 290 is connected.
  • a opening 292 that is slightly wider than the diameter D of the plugging member 243 is connected.
  • a flange 241 of the opening 292 that projects inwardly, four rectangular notch 242 having such width as to accept the projections 244 of the plugging member 248 are provided.
  • recesses 248 that are concave toward the upper direction and are slightly wider than the projections 244 of the plugging member 243 are provided at places between the neighbouring two notches 242.
  • FIG. 14 a state in which the plugging member 243 has been screwed into the block member 240 is shown.
  • the plugging member 243 can be manually inserted into the central hole 280 of the block member 240.
  • 249 is an 0-ring for hermetical sealing fitted on the plugging member 243. Because the axial motion of the projections 244 of the plugging member 243 is limited by the flange 241 of the block member 240, the plugging member 243 will not be released spontaneously.
  • Figs. 15(a)-15(c) a brief process charts for screwing the plugging member 243 into the block member 240 are shown.
  • the projections 244 of the plugging member 243 are adjusted to the corresponding notches 242 of the block member 240, and the plugging member 243 is manually inserted in a axial direction into the central hole 280 of the block member 240.
  • the plugging member 243 is rotated by about 45 degrees so as to turn the projections 244 within the internally bored groove 290.
  • the plugging member 243 has projections which have rectangular cross section as shown in Fig. 12, the cross section of the projections may have other shape. An example is shown in Fig. 16. At four places around a plugging member 245 shown in Fig. 16, cylindrical shaped pins 246 are implanted. Of course the plugging member 245 together with the cylindrical pins 240 may be formed integrally.
  • a plugging mechanism 200 according to a variation of the second embodiment of the present invention in which a plugging member can be fastened or unfastened at will is shown.
  • a couple of rectangular cut out portions 250 are provided at diametrically opposing positions.
  • a bracket member 251 has a short cylindrical shape. On the inner wall of the bracket member 251 an inwardly pointing flange 253 is provided. The flange 253 is divided into two portions by a pair of rectangular notches 252 provided at diametrically opposing positions.
  • a plugging member 254 has a pair of projections 255 protruding diametrically outwardly.
  • a plugging mechanism 200 according to a variation of the second embodiment of the present invention is assembled by fixing and brazing the bracket member 251 onto the upper end 1b1 of the first header pipe 1 after adjusting a side of the notch 252 of the bracket member 251 to a side of the cut out portion 250 of the upper end 1b1 of the first header pipe 1. Then, with reference to Fig. 23(a), by adjusting the projections 255 of the plugging member 254 to the notches 252 of the bracket member 251, it is possible to insert in the axial direction the plugging member 254 into the bracket member 251.
  • Fig. 23(b) shows a state in which the plugging member 254 has been inserted into the bracket member 251.
  • the cut out portions 250 of the upper end 1b1 of the first header pipe I. and the flange 253 of the bracket member 251 cooperatively define two grooves in which the projections 255 of the plugging member 254 can turn around by a certain angle.
  • a plugging mechanism 200 according to a yet another variation of the second embodiment of the present invention in which a plugging member can be fastened or unfastened at will is shown.
  • an expanded portion 257 is provided in the upper end 1b1 of the first header pipe 1.
  • the lower portion of the expanded portion 257 is a circular shoulder portion 257b, and. upper portion of the expanded portion 257 is a inwardly pointing flange 257a.
  • four rectangular notches 256 are provided in the flange 257a.
  • the plugging mechanism 200 enables the plugging member 258 to be inserted in a axial direction into the expanded portion 257 provided in the upper end 1b1 of the first header pipe 1 after adjusting the projections 259 of the plugging member 258 to the notches 256 of the flange 257a.
  • the expanded portion 257 of the upper end 1b1 of the first header pipe 1 forms by itself an internal circular groove in which the projections 259 of the plugging member 258 can orbit. Therefore, if after inserted into the flange 257a the plugging member 258 is rotated by a certain angle, then the plugging member 258 becomes in a state in which the plugging member 258 can not be released spontaneously because of the engagement of the projections 259 and the circular shoulder portion 257b and the flange 257a. This state is shown in Fig. 28.
  • a plugging mechanism 200 according to a yet another variation of the second embodiment of the present invention in which a plugging member can be fastened or unfastened at will is shown.
  • a plugging member 264 two wide projections 265 projecting outwardly are provided at diametrically opposing positions. And for easy manual handling a knob 260 is provided on the plugging member 264.
  • an 0-ring 249 for hermetical sealing.
  • a block member 261 comprises a lower short cylindrical portion and an upper portion having hooking function.
  • a pair of arms 263 that protrude toward the center are provided.
  • a plate portion 262 At middle portion between the upper arm portion 263 and the short cylindrical portion of the block member 261 is provided.
  • a female screw 266 is provided in the plate portion 262.
  • a plugging mechanism 200 according to this variation of the second embodiment of the present invention is assembled first by inserting the lower short cylindrical portion into the upper end 1b1 of the first header pipe 1 and fixing and brazing them. With reference to Fig. 35(a), then, by adjusting the angular position of the plugging member 264 relative to the arms 263 such that the projections 265 are not hindered by the arms 263, it is possible to insert the plugging member 264 into the block member 261.
  • a condenser 1000 according to the third embodiment of the present invention is shown. To the same parts with the first embodiment, the same numerals are attached, and their explanations are omitted.
  • the plugging mechanism 300 comprises a generally cylindrical block member 320 that is fixed and brazed to the lower end of the first header pipe 1 and a plugging member 325 that is inserted straightly into the block member 320 and a stopper member 327.
  • Fig. 37 a longitudinal cross sectional view of the plugging mechanism 300 in which the plugging member is in a fixed state is shown.
  • the block member 320 is inserted and brazed to the lower end 1a1 of the first header pipe 1.
  • the center hole 280 partially accommodates the bottom 14b of the container 14 of the desiccant.
  • the stopper member 327 is a U-shaped metal.
  • the stopper member 327 has lateral side surfaces 327a and. 327b.
  • a pair of slits 324 in which the arms of the stopper member 327 are inserted, are provided at diametrically opposing positions.
  • the slits 324 is in communication with the center hole 280 via rectangular hole 324c.
  • the slit 324 has side surfaces 324a and 324b that are perpendicular to the axis of the first header pipe 1.
  • the plugging member 325 is inserted into the center hole 280 of the block member 320 until a surface 326b of a circular groove 326 provided on the plugging member 325 coincide with the side surface 324b of the slit 324 of the block member 320. Then, two arms of the stopper member 327 is inserted into the two slits 324 of the block member 320. On this occasion, the lateral side surface 327a and 327b of the stopper member 327 engage with the side surfaces 324a and 324b of the slits 324. Therefore the stopper member 327 is fixed relative to the block member 320.
  • a surface 326a of the circular groove 326 of the plugging member 325 extends beyond a straight bottom surface 324c of the slit 324. Therefore, the plugging member 325, due to the engagements between the surfaces 326a, 326b of the circular groove 326 of the plugging member 325 and the lateral side surfaces 327a, 327b of the stopper member 327 respectively, is fixed to the stopper member 327. As a result, the plugging member 325 can be fixed relative to the block member 320.
  • Figs. 40(a)-41(b) a variation of the third embodiment of the present invention is shown.
  • the stopper member 330 has longer arms. After inserting the arms of the stopper member 330 into the slits 324 of the block member 320, the points of the arms 332 of the stopper member 330 that protrude out of the block member 320 can be folded so as to embrace the block member 320. By this contrivance, the occurrence of a spontaneous release of the stopper member 380 can be prevented. Of course, it is possible to fold the points 332 of the arms back to its original shape, so the stopper member 330 can be easily fixed and easily detached.
  • one arm 334 of the stopper member 333 is designed to be longer than the other arm 336.
  • the point of the longer arm 334 of the stopper member 333 that protrudes out of the block member 320 may be bent by a right angle to embrace the block member 320.
  • a folded portion 335 is formed, and by bending the point of the folded portion 335 further, the folded portion 337 is formed.
  • the folded portion 337 is engaged with the tip of the shorter ann 336.
  • both the arms of the stopper member 338 are designed to be long. On each tip of the arms is provided a hole 343a for passing a bolt and female screw 343b respectively.
  • a pair of ear portion 340 having holes 342 for passing the bolt are provided. After inserting the stopper member 338 into the slits 324 of the block member 320, the hole 343a and the female screw 343b of the stopper member 338 and the holes 342 are adjusted. Then, a bolt 341 is screwed into them. By this contrivance, the occurrence of a spontaneous release of the stopper member 338 can be prevented.
  • Figs. 44-45 another variation of the third embodiment of the present invention is shown.
  • the stopper member 346 is fixed to the block member 347 by the engagement of the stopper member 346 and the slits 348 of the block member 347.
  • the lower surface 344b of the plugging member 344 is in engagement with one lateral side surface 346b of the stopper member 346.
  • a condenser 1000 according to the fourth embodiment of the present invention is shown. To the same parts with the first embodiment, the same numerals are attached, and their explanations are omitted.
  • the plugging mechanism 400 comprises a generally cylindrical flange member 426 that is fixed and brazed to the upper end of the first header pipe 1 and a plugging member 421 that is inserted straightly into the flange member 426 and fixed by bolts 431.
  • Figs. 47-49 detailed state of the plugging mechanism 400 in which the plugging member 421 is fixed is shown.
  • a short cylindrical portion 427 is provided to the center of the flange member 426 . It is fixed and brazed to the upper end 1b1 of the first header pipe 1.
  • holes 429 for fixing female screw member 430 are provided on flanges 428 that are positioned at both sides of the short cylindrical portion 427.
  • the female screw member 430 may be fixed to the hole 429 by pressure insertion or welding.
  • Lower portion of the plugging member 421 is inserted into the cylindrical portion 427 of the flange member 426.
  • the lower portion of the plugging member 421 may be fitted an 0-ring 484 for hermetical sealing.
  • To the both side of the plugging member 421 are provided flanges 421b that overlap the flange 428 of the flange member 426.
  • holes 432 for passing bolt are bored.
  • Fig. 50 a variation of the fourth embodiment of the present invention is shown.
  • an expanded portion 435 that functions to limit the insertion length of the female screw member 430 into to flange 428 is provided.
  • Fig. 51-52 a yet another variation of the fourth embodiment of the present invention.
  • both of the flange member 440 and the plugging member 437 are asymmetrical.
  • the flange member 440 has an overhanged flange 438 and a shoulder 436 that are made by folding twice the originally flat flange.
  • a short flange 437a that can be inserted into between the flange 438 and the shoulder 436 is provided.
  • the right side of the flange member 440, a portion 439 for providing a female screw 441 is made by folding twice and squashing the originally flat flange plate.
  • a flange 437b having a hole for passing a bolt like before.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Drying Of Gases (AREA)
EP02251912A 2001-04-10 2002-03-18 Mehrstromverflüssiger mit Unterkühlung Withdrawn EP1249672A3 (de)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2001111202A JP2002310536A (ja) 2001-04-10 2001-04-10 サブクールタイプコンデンサ
JP2001111202 2001-04-10
JP2001152248A JP2002350001A (ja) 2001-05-22 2001-05-22 サブクールタイプコンデンサ
JP2001152248 2001-05-22
JP2001183033A JP2002372342A (ja) 2001-06-18 2001-06-18 サブクールタイプコンデンサ
JP2001183033 2001-06-18
JP2001293968A JP2003106709A (ja) 2001-09-26 2001-09-26 熱交換器
JP2001293968 2001-09-26

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DE102015114562A1 (de) * 2015-09-01 2017-03-02 Halla Visteon Climate Control Corp. Wärmeübertrager mit Sammlerrohr
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CN105318612A (zh) * 2015-12-05 2016-02-10 广东志高空调有限公司 一种空调冷凝器过冷段热电冷却系统
CN107144045B (zh) * 2016-03-01 2020-01-21 杭州三花微通道换热器有限公司 一种蒸发器
CN106382840B (zh) * 2016-08-16 2018-12-07 合肥升园汽车配件有限公司 一种汽车空调冷凝器的集流管总成
CN106382841A (zh) * 2016-08-16 2017-02-08 合肥升园汽车配件有限公司 一种汽车空调冷凝器用集流管
CN106403695A (zh) * 2016-08-16 2017-02-15 合肥升园汽车配件有限公司 一种汽车空调的集流管总成
US10935288B2 (en) * 2017-08-28 2021-03-02 Hanon Systems Condenser
FR3078395B1 (fr) * 2018-02-26 2020-01-24 Valeo Systemes Thermiques Dispositif d'obturation pour bouteille d'un condensateur
WO2023030508A1 (zh) * 2021-09-03 2023-03-09 杭州三花微通道换热器有限公司 换热器和多系统空调机组

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DE10221968A1 (de) * 2002-05-17 2003-11-27 Modine Mfg Co Aufnahmevorrichtung für Trocknungsmittel
EP1420219A1 (de) * 2002-11-15 2004-05-19 Frape Behr S.A. Kondensator
WO2005050119A2 (de) * 2003-11-14 2005-06-02 Behr Gmbh & Co. Kg Wärmetauscher und sammelbehälter-trockner-baugruppe für wärmetauscher
WO2005050119A3 (de) * 2003-11-14 2005-12-08 Behr Gmbh & Co Kg Wärmetauscher und sammelbehälter-trockner-baugruppe für wärmetauscher
EP1577629A1 (de) * 2004-03-18 2005-09-21 Behr Lorraine S.A.R.L. Verschlusselement, Sammelbehälter und Wärmetauscher
DE102015114562A1 (de) * 2015-09-01 2017-03-02 Halla Visteon Climate Control Corp. Wärmeübertrager mit Sammlerrohr
CN105464949A (zh) * 2015-12-28 2016-04-06 华南理工大学 一种适用于冰箱压缩机壳体表面自然对流散热的装置
WO2020206090A1 (en) * 2019-04-02 2020-10-08 Valeo North America, Inc. A heat exchanger

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CN1302250C (zh) 2007-02-28
EP1249672A3 (de) 2004-07-07

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