Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
  • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
  • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
  • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
  • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
  • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
  • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
  • F28D1/0435—Combination of units extending one behind the other
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
  • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
  • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
  • F28D2021/0084—Condensers
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
  • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
  • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
  • F28D2021/0091—Radiators
  • F28D2021/0094—Radiators for recooling the engine coolant
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
  • F28F9/02—Header boxes; End plates
  • F28F2009/0285—Other particular headers or end plates
  • F28F2009/0287—Other particular headers or end plates having passages for different heat exchange media

Definitions

• the invention relates to an arrangement for fastening a first heat transfer to a second heat exchanger according to the preamble of patent claim 1.
• a cooling module which is arranged in the front engine compartment of the motor vehicle, usually comprises a coolant cooler, an intercooler. and / or a capacitor, which are attached to one another and thus form a structural unit.
• the heat exchangers are also fastened separately in the vehicle, as was known from EP-A 915 308 for a refrigerant condenser of a motor vehicle air conditioning system.
• the refrigerant condenser consists of a soldered tube / fin block with tube ends, which open into mutually arranged manifolds and are also soldered to them.
• Refrigerant enters and exits via so-called block connections, which are soldered to the header pipes.
• block connections which are soldered to the header pipes.
• four holding elements are arranged on the tube / fin block, with which the entire condenser is fastened in the vehicle, usually in front of a coolant cooler.
• the known condenser has, in addition to the collecting pipes, a collecting container which has become known as an integrated collecting container by DE-A 42 38 853 of the applicant.
• the collecting container or collector is connected directly to one of the collecting pipes.
• fastening elements are soldered to the header pipes so that the condenser can be fastened in the vehicle or on an adjacent heat exchanger, e.g. B. a coolant cooler, which rather serves to cool a liquid coolant for the internal combustion engine of the motor vehicle.
• Coolant coolers are constructed differently than refrigerant condensers and often have a soldered network with a soldered tube sheet and a coolant box, which is manufactured as a plastic tip and thus offers the possibility of spraying coolant sockets and fastening elements onto the coolant box. This became known for the attachment of fan hoods or intercoolers.
• Corresponding fastening elements are injection molded onto the fan hood or onto the air boxes of the intercooler, which are also made of plastic, and are connected or locked to the associated fastening elements on the coolant box. Since a condenser does not have plastic boxes, but rather metal manifolds, it is not possible to inject fastening elements here.
• the first heat exchanger is held at four corner regions, and the molded-on holding means on the second heat exchanger are adapted to the shape of the first heat exchanger, so that a positive and / or non-positive connection results.
• This is advantageously done by molded hooks in the upper area of the collecting boxes of the second! Heat exchanger reached. This design allows the first heat exchanger to be inserted from below into the hooks arranged at the top.
• the lower fastening elements on the second heat exchanger are designed as a rib-shaped shoulder with snap hooks, likewise molded onto one of the header boxes.
• a secure support of the first heat exchanger fixing in the vertical
• a fixation by the snap hook in the horizontal is achieved.
• a so-called block connection which serves as an anchoring element of the first heat exchanger on the second heat exchanger, is fastened to the first heat exchanger, that is to say to its manifolds.
• the block connection is encased by a molded hook and held by a snap hook.
• the first heat exchanger is thus sufficiently fastened to the second heat exchanger without an additional part.
• the first heat exchanger is designed as a condenser of a motor vehicle and the second heat exchanger is designed as a coolant cooler of a motor vehicle, which are advantageously combined in a cooling module.
• the coolant cooler is advantageously the module carrier, i. H. the other components are attached to it.
• the capacitor which consists of aluminum and is completely soldered in a soldering furnace, can thus be designed simply by dispensing with soldered holding means and can be produced at low cost.
• the additional effort for the fasteners on the coolant boxes of the cooler is relatively small and is reflected in one-off costs for the plastic injection mold of the collecting boxes.
• FIG. 1 is a view of a coolant cooler for a motor vehicle with a hidden condenser
• FIG. 1a shows a top view of the coolant cooler and condenser according to FIG. 1
• FIG. 2 shows a side view of the cooler from the left with the condenser according to FIG. 1
• FIG. 2a shows a 3-D representation of the side view according to FIG. 2
• FIG. 3 shows a side view of the cooler from the right with a condenser according to FIG. 1 and FIG. 3a shows a 3-D representation of the side view according to FIG. 3.
• the cooler 1 shows a coolant cooler 1 of a motor vehicle in the direction of travel of the motor vehicle, ie in the X direction.
• the cooler 1 has a preferably soldered cooler block 2, consisting of flat tubes and corrugated fins, not shown, and coolant boxes 3, 4 arranged on both sides of the block 2, which are produced as injection-molded plastic parts.
• the two coolant boxes 3, 4 are placed on metallic tube sheets 5, 6 and with this mechanically connected.
• the tube sheets 5, 6 are soldered to the block 2, ie tube ends, not shown, are received and soldered in the two tube sheets 5, 6.
• the cooler 1 is designed as a cross-flow cooler, ie with coolant cheeses 3, 4 or tube sheets 5, 6 installed vertically in the vehicle.
• the coolant enters the left coolant box 4 through a coolant inlet connection 7 and leaves the cooler via the coolant outlet connection 8 in the right coolant box 3.
• Each coolant box 3, 4 has in its lower region a fastening pin 9, 10, which supports the cooler 1 on the vehicle side and fix.
• the radiator is also attached to two upper, not designated locations in the vehicle.
• FIG. 1 a shows the cooler according to FIG. 1 in a view from above, the direction of travel X and the transverse direction Y being drawn in as coordinates on the right.
• the direction of air flow is shown by an arrow L.
• a refrigerant condenser 11 is arranged in the air flow direction in front of the radiator 2 and is connected to the radiator 2 in a manner to be explained below.
• the condenser 11 has a condenser block 12 soldered from flat tubes and corrugated fins, not shown, and on both sides two header tubes, of which only the left header tube 13 is visible, which is integrated with a header 14.
• Such capacitors with an integrated collector are from the prior art cited at the beginning, i. H. DE-A 42 38 853 known.
• FIG. 2 shows a side view of the cooler 1 from the left with the condenser 11 connected upstream in the air flow direction, of which essentially only the collector 14 can be seen.
• the holding pin 9 is arranged on the coolant box 4, offset somewhat to the right in the air flow direction.
• the collecting container 14 lies parallel to the coolant box 4 and is fixed in the Y direction (perpendicular to the plane of the drawing) by a bow-shaped rib 15 molded onto the coolant box 4.
• a downward-pointing hook 16 is molded onto the upper end of the coolant box 4, which engages over the upper part 14a of the collector 14, fixes it in the X direction and permits tolerance compensation in the Z direction.
• the coolant box 4 has in its lower area an injection molded rib-shaped shoulder 17, on which a snap hook 18 connects in the X direction.
• the lower part 14b of the collector 14 rests on the shoulder 17, is thus fixed in the Z direction and is held in the X direction by the snap hook 18.
• a rigid rib 19 for securing the snap hook 18 against bending over is arranged below the snap hook 18.
• Below the rib 19, a block connection 20 with two connection bores 20a, 20b can be seen, which is connected to the collecting pipe, which is arranged on the side of the condenser block facing away from the collector 14.
• the block connection 20 is encompassed by a hook 21 which is molded onto the coolant boxes 4 and fixes the condenser in the Z direction.
• FIG. 2a shows the side view according to FIG. 2 rotated somewhat about a vertical axis (parallel to the Z axis), i. H. in a 3-D representation, the same reference numbers being used for the same parts.
• the upper part of the capacitor block 12 and the collector 14 can be seen, the upper part 14a of which is overlapped by the hook 16.
• the lower part 14b of the collector 14 is secured to the front by the snap hook 18 and protected against overbending by the lower rib 19.
• FIG. 3 shows the coolant cooler 1 according to FIG. 1 , in a side view from the right, ie with a view of the right coolant box 3, parallel to which a second header pipe 22 is arranged.
• the block connection 20 is fastened, ie soldered, to the lower end of the collecting tube 22.
• Such refrigerant connections are known from the prior art mentioned at the beginning; they are intended for the connection of a refrigerant inflow and outflow line, not shown.
• the block connection 20 is arranged at the end, that is to say an end face of the collecting tube 22, and thus forms an anchorage by means of which the condenser 11 can be fixed to the cooler 1 or its coolant box 3.
• the hook 21 is molded onto the coolant box 3 and on the other hand a snap hook 23 is provided in the Z direction above the block connection 20 (also molded onto the coolant box 3), which engages in a corresponding recess 24 in the block connection 20 and thus the Secures capacitor in the X direction.
• the opposite of the block connection 20 set side of the collector pipe 22 is overlapped by a molded on the coolant box 3 hook 25, which holds the collector pipe 22 and thus the condenser 11 in the X direction.
• FIG. 3a shows the side view according to FIG. 3 pivoted somewhat about a vertical axis (parallel to the Z axis), so that one can see the upper part of the capacitor block 12. Furthermore, the upper hook 24 and the lower fastening means such as the hook 21 and the snap hook 23 can be clearly seen. Finally, the fastening pin 10, which is formed in one piece with the coolant box 3, is also shown.
• the two heat exchangers are assembled in the manner described below: First, the condenser 11 is connected to the coolant cooler 1 by slightly tilting the condenser 11 (about a horizontal axis) and with its upper edge under the two upper hooks 16 and 24 is pushed. The condenser 11 is then folded onto the coolant cooler 1, so that the lower edge of the condenser 11 comes to rest on the one hand on the rib-shaped extension 17 and the snap hook 18 and on the other hand between the hook 21 and the snap hook 22. After the two snap hooks 18 and 22 have engaged, the assembly process is ended. In order to ensure that the condenser 11 and the collector 14 rest against the coolant box 4 without play, support ribs (not shown in more detail) are arranged on the latter, in the region of the upper third of the coolant box 4.

Landscapes

• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Air-Conditioning For Vehicles (AREA)
• Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
• Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
• Details Of Heat-Exchange And Heat-Transfer (AREA)
• Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=34428483

Family Applications (1)

Country Status (7)

Families Citing this family (13)

Family Cites Families (28)

• 2003
  • 2003-10-16 DE DE10348701A patent/DE10348701A1/de not_active Withdrawn
• 2004
  • 2004-09-13 WO PCT/EP2004/010193 patent/WO2005038374A1/fr active Application Filing
  • 2004-09-13 EP EP04765115A patent/EP1676085B1/fr active Active
  • 2004-09-13 BR BRPI0415382-0A patent/BRPI0415382A/pt not_active IP Right Cessation
  • 2004-09-13 US US10/575,903 patent/US7367379B2/en active Active
  • 2004-09-13 AT AT04765115T patent/ATE550618T1/de active
• 2006
  • 2006-04-12 ZA ZA200602983A patent/ZA200602983B/en unknown

Non-Patent Citations (1)

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