EP1843110A2 - Appareil frigorifique - Google Patents

Appareil frigorifique Download PDF

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Publication number
EP1843110A2
EP1843110A2 EP07105539A EP07105539A EP1843110A2 EP 1843110 A2 EP1843110 A2 EP 1843110A2 EP 07105539 A EP07105539 A EP 07105539A EP 07105539 A EP07105539 A EP 07105539A EP 1843110 A2 EP1843110 A2 EP 1843110A2
Authority
EP
European Patent Office
Prior art keywords
tube
refrigerating appliance
recess
widenings
appliance according
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Withdrawn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
EP07105539A
Other languages
German (de)
English (en)
Other versions
EP1843110A3 (fr
Inventor
Caglar Tansu Balci
Serdar Uyan
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1843110A2 publication Critical patent/EP1843110A2/fr
Publication of EP1843110A3 publication Critical patent/EP1843110A3/fr
Withdrawn legal-status Critical Current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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • 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
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/052—Compression system with heat exchange between particular parts of the system between the capillary tube and another part of the refrigeration cycle
    • 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
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/054—Compression system with heat exchange between particular parts of the system between the suction tube of the compressor and another part of the cycle
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/37—Capillary tubes

Definitions

  • the present invention relates to a refrigerator with a spacer member for fixing at least one tube on an outer side, in particular in a second tube with a larger cross-section, and a tube assembly which uses such a spacer member.
  • spacer parts and pipe arrangements are used in particular for supplying and discharging refrigerant to an evaporator of a refrigerator, such as a refrigerator or a freezer, where a capillary line, the compressed, relatively warm refrigerant leads to a throttle point at the entrance of the evaporator, inside a Suction line is arranged by a substantially larger cross-section, is sucked through the vaporized refrigerant from the evaporator and fed to a compressor.
  • the arrangement of the capillary in the interior of the suction pipe is to allow pre-cooling of the compressed refrigerant even before reaching the throttle point by the countercurrently flowed outside of the capillary vaporized refrigerant.
  • An immediate contact of the capillary with the wall of the suction line would create an undesirable thermal bridge, which affects the pre-cooling of the refrigerant. It is therefore known per se to fix the capillary in such a suction tube by means of spacer parts.
  • spacer parts of disc-like shape generally have an open-edged recess, which makes it possible réellestecken the spacer members on the capillary transverse to the longitudinal direction and to lock by positive engagement of the capillary in a widening at the bottom of the recess on the capillary.
  • refrigerators or evaporators for these are manufactured in different models, which differ, for example, with regard to the refrigerant flow rate for which they are designed, capillaries of different external dimensions are required, while the free cross-section of the suction lines is the same even with models designed for different refrigerant flow rates can be. Therefore, in order to fix the various types of capillaries in the suction line, conventionally, different types of spacer members are required. This makes the assembly consuming and costly, since the respective capillary diameters appropriate spacers parts must be made and stored, and must be ensured It must be ensured that the distance holder parts that fit the capillary to be mounted are always available at a mounting station.
  • Object of the present invention is to provide a spacer member and a pipe assembly with a spacer member, which allow to reduce this effort.
  • a spacer member for fixing a tube in a cavity having an elastic body and in the body an open-edged recess for positive reception of the tube, wherein the open-edged recess has at least two widenings, which are suitable To hold pipe with a different external dimensions positively.
  • a spacer member is no longer specific to a particular type of pipe, but can be used in the assembly of at least two types of pipe with different outer dimensions. Since the second expansion requires a priori no additional material costs in the production and only a set of molds for a uniform model is required instead of several sets of molds for the production of different models of spacer parts, the unit cost of the spacer parts reduce. The logistics effort for the provision of the spacer parts at the assembly site is also reduced.
  • the at least two widenings for the tubes with different external dimensions are formed one behind the other at the slot-like recess, so that when the spacer part is pushed onto the tube, the spacer part is pushed in each case with minimal expenditure of time until the tube has reached the widening suitable for its external dimension ,
  • a kinked course of the slot-like recess makes it possible given a given depth of the spacer member portion a large depth, so that the spacer member can be formed from a fairly rigid material in the Recesses the pipes each find secure hold, without that by the insertion of the tubes into the recess necessarily occurring bending of the spacer member insertion is excessively difficult.
  • one of the widenings in the amount of a kink of the recess is arranged, so that when plugging the spacer member on a first tube first comes to rest when the tube has reached the recess of the kink and the next recess can only be reached by a change of direction. This will prevent a tube from being accidentally inserted deeper into the recess than is appropriate from its outside dimensions.
  • one of the recesses is located at a mid-point of the body of the spacer member.
  • the recess is branched, because this makes it possible to increase the number of widenings in which a tube can be held in a form-fitting manner.
  • a widening at the end of each branch is preferably formed.
  • widenings are preferably dimensioned to hold tubes of the same outer size form-fitting, and on the body an anti-rotation is formed to make the body in the cavity rotationally fixed.
  • a tube does not extend along its entire length along the central axis of the cavity, but it shuttles on its way around this central axis and in this way, in particular when it is under bending stress, also reliably kept away from the walls of the interior.
  • the spacer member shown in Fig. 1 is a plastic body, which is obtained for example by injection molding or preferably by extruding a profile and cutting the profile in slices transverse to its extrusion direction.
  • the body 1 of the spacer member has substantially the shape of a circular disc in which a T-shaped open-edge recess 2 is formed.
  • the vertical bar 3 of the T extends from the outer periphery of the body 1 to the midpoint thereof and is tapered from outside to inside to form on the outer periphery a large insertion opening facilitating the attachment of the spacer member to a pipeline.
  • a first expansion 5 is formed, which is dimensioned to accommodate, for example, a cylindrical pipe having an outside diameter of 7 mm.
  • the vertical bar 4 is at its narrowest point, in the immediate vicinity of the first expansion, 6 mm wide. Therefore, the spacer member can be slipped onto a pipe having a diameter of 7 mm corresponding to the first widening without too much effort and under slight elastic deformation until the pipe reaches the widening 5.
  • the extending from the expansion 5 in opposite directions arms of the crossbar 4 are significantly narrower, for example, with 3.7 mm width than the expansion 5.
  • the force that would be required to the 7 mm thick tube in an arm of the crossbar. 4 is therefore much higher than the force required to pass the narrowest point of the vertical beam 3, so that it is easy to see during assembly that this is not intended.
  • the body 1 has a truss structure with a circular segment-shaped outer wall 7, which merges into side walls 8 of the T-shaped recess 2, and radially oriented struts 9, 10, each extending in extension of the vertical beam 3 and of the crossbar 4 between the widenings 5 and 6 and the outer wall 7 extend.
  • the struts 9, 10 do not hinder a temporary bending apart of the side walls of the recess when the body is slipped onto a pipe, but they prevent the widenings 5, 6 from displacing with respect to the outer wall 7 under the pressure exerted during insertion.
  • a bracket 11 is formed, which protrudes from the abutting edge initially slightly radially outwardly to then bend back inwards and leak into an engaging in the vertical bar 3 arm 12.
  • This bracket 11 can perform different functions.
  • the inwardly directed tip of the arm 12 and the opposite, towards the center of the spacer toward each other tapering side walls 8 define a further expansion, in which, as indicated in Fig. 1 as a dotted outline, also a capillary is latched.
  • Figures 2 and 3 respectively show examples of use of the spacer part, wherein an outer tube 13 is shown cut on a portion of its length.
  • an inner tube 14 is locked in the widenings 5 of a plurality of spacer members 1, and the spacer members are inserted into the outer tube 13, thus keeping the inner tube 14 coaxial with the outer 13th
  • the outer tube 13 may have a circular inner cross section, so that the spacer members are held by elastic deformation of their bracket 11 frictionally in the interior of the tube 13. Due to the coaxial arrangement of the tubes 13 and 14 is it is not necessary that the spacer parts are aligned with each other. But it can also, as indicated in the figure, a deviation from the circular shape in the form of a -. B. by a weld - flat groove 15 may be present, in which the bracket 11 engage, so that they are rotatably held in the interior of the tube 13 and aligned.
  • Fig. 3 shows the use of the same spacer member as in Figs. 1 and 2 for fixing an inner tube 14 ', whose outer diameter is smaller than that of the tube 14 of FIG. 2 and adapted to the widenings 6 at the ends of the crossbar 4. Since the widenings 6 are closer to the wall of the tube 13 than the widening 5 and the tube 14 'is more flexible than the tube 14 due to its small diameter, there is the possibility that the tube 14' may be in contact with the wall of the tube 13 device when it passes through aligned recesses 6 of successively arranged in the tube 13 spacer members and is not ideal straight. In order to avoid this risk, in the structure of FIG.
  • the tube 14 ' which is straight in the relaxed state, is alternately guided by widenings 6 at opposite ends of the crossbar 4 by spacers 1 arranged in alignment with each other and thus held under bending stress and then to a forced around the longitudinal central axis of the tube 13 oscillating course.
  • the risk of accidental contact with the wall of the tube 13 is not greater than in the case of the coaxial guide of the tubes 13, 14 shown in FIG. 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Supports For Pipes And Cables (AREA)
  • Clamps And Clips (AREA)
EP07105539A 2006-04-05 2007-04-03 Appareil frigorifique Withdrawn EP1843110A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202006005550U DE202006005550U1 (de) 2006-04-05 2006-04-05 Kältegerät

Publications (2)

Publication Number Publication Date
EP1843110A2 true EP1843110A2 (fr) 2007-10-10
EP1843110A3 EP1843110A3 (fr) 2012-05-30

Family

ID=36710191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07105539A Withdrawn EP1843110A3 (fr) 2006-04-05 2007-04-03 Appareil frigorifique

Country Status (2)

Country Link
EP (1) EP1843110A3 (fr)
DE (1) DE202006005550U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210254882A1 (en) * 2020-02-17 2021-08-19 Trane International Inc. Vibration Damping Clips for Climate Control Systems

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007010274U1 (de) * 2007-07-24 2007-09-27 BSH Bosch und Siemens Hausgeräte GmbH Wärmetauscher und Kältegerät

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0563718A1 (fr) * 1992-03-30 1993-10-06 KM-SCHMÖLE GmbH Dispositif frigorifique pour réfrigérateurs
CA2127506A1 (fr) * 1993-10-22 1995-04-23 Daniel F. Kiblawi Dispositif de couplage pivotant a raccord instantane

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210254882A1 (en) * 2020-02-17 2021-08-19 Trane International Inc. Vibration Damping Clips for Climate Control Systems
US11781798B2 (en) * 2020-02-17 2023-10-10 Trane International Inc. Vibration damping clips for climate control systems

Also Published As

Publication number Publication date
EP1843110A3 (fr) 2012-05-30
DE202006005550U1 (de) 2006-07-06

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