WO2005064246A1 - Appareil refrigerant muni d'un tuyau d'admission et d'un tuyau d'etranglement soudes par ultrasons - Google Patents

Appareil refrigerant muni d'un tuyau d'admission et d'un tuyau d'etranglement soudes par ultrasons Download PDF

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Publication number
WO2005064246A1
WO2005064246A1 PCT/EP2004/053358 EP2004053358W WO2005064246A1 WO 2005064246 A1 WO2005064246 A1 WO 2005064246A1 EP 2004053358 W EP2004053358 W EP 2004053358W WO 2005064246 A1 WO2005064246 A1 WO 2005064246A1
Authority
WO
WIPO (PCT)
Prior art keywords
throttle
intake manifold
pipe
tube
point
Prior art date
Application number
PCT/EP2004/053358
Other languages
German (de)
English (en)
Inventor
Jürgen Eberle
Thomas Kranz
Werner Schmid
Original Assignee
BSH Bosch und Siemens Hausgeräte 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 Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Priority to EP04804736A priority Critical patent/EP1702184A1/fr
Priority to US10/584,161 priority patent/US20080016904A1/en
Publication of WO2005064246A1 publication Critical patent/WO2005064246A1/fr

Links

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
    • F25B39/02—Evaporators
    • F25B39/022—Evaporators with plate-like or laminated elements
    • 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
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size

Definitions

  • the present invention relates to a refrigeration device with a throttle pipe and a suction pipe for refrigerant.
  • the throttle tube runs at least over part of its length in the interior of the intake manifold and emerges from the intake manifold to form an exit point.
  • the throttle pipe and the suction pipe are connected to one another at a further, second point of the suction pipe, at which outer surfaces of the throttle pipe and the suction pipe touch.
  • the invention further relates to a method for connecting the throttle and intake manifold.
  • the throttle tube is usually introduced into the interior of the intake pipe before entering an evaporator and is continued within the intake pipe to the evaporator.
  • this is intended to achieve a pre-cooling of the liquefied refrigerant guided in the throttle pipe.
  • the intake manifold and the throttle tube are connected to one another in a liquid-tight and gas-tight manner by soldering at this first point of the intake manifold, at which the throttle tube is led into the interior of the intake tube.
  • the material from which the throttle tube is made usually copper or a copper alloy, is changed in its structure by soldering in such a way that the throttle tube would bend easily without further attachment. For this reason, the part of the throttle tube located outside the intake manifold is guided parallel to the intake manifold over a certain length before entering the intake manifold and fixed to the intake manifold with an adhesive tape.
  • the tape is usually applied by hand.
  • the object of the present invention is to provide a refrigerator of the type mentioned, in which the throttle tube introduced into the intake manifold is protected in a simple and inexpensive manner from kinking at the entry point into the intake manifold.
  • the object is achieved with a refrigeration device according to claim 1 and a method for connecting the suction and throttle tube of a refrigeration device according to claim 7.
  • the dependent claims relate to preferred configurations of the refrigerator.
  • a refrigeration device is provided with a throttle tube and a suction pipe for refrigerant, wherein the throttle pipe is inserted into and connected to the inside of the suction pipe at a first point of the suction pipe, and wherein the throttle pipe and the suction pipe at a further, second point of the intake manifold, on which outer surfaces of the throttle tube and the intake manifold touch, are connected to one another.
  • the outer surfaces of the throttle tube and the intake manifold are connected to one another by ultrasonic welding at the second connection point of the intake and throttle tube.
  • the ultrasonic welding is usually done so that the outer surfaces to be connected by the suction and throttle tube are brought into contact with one another and excited with high-frequency ultrasound.
  • the frequencies here can range from approximately 20,000 to 60,000 Hertz.
  • the two surfaces of the intake and throttle tube rub against each other and heat up so much that their contact surfaces fuse together.
  • the ultrasonic energy is supplied to the pipes to be connected via a so-called sonode.
  • the sonode amplifies the ultrasound generated, for example, by a piezo composite oscillator.
  • a piezo composite transducer is usually made up of several piezoceramic perforated disks that are clamped together via metallic end pieces.
  • the welding of suction and throttling pipe by means of ultrasonic welding has the advantage that the heat required for welding is released in a short time and exclusively on the contacting surfaces of the two pipes. Other regions of the pipes are at most heated by the flow of heat from the contact area. They therefore remain much cooler than e.g. when soldering is possible. Therefore, the structure of the metallic material from which the intake manifold and the throttle tube are made, mostly copper or a copper alloy, is not significantly changed. The mechanical strength properties of the material are therefore not changed. It is also a very inexpensive connection technology. Furthermore, the throttle tube can be fixed automatically to the intake manifold by means of ultrasonic welding, which is not the case when fixing with the aid of an adhesive tape. This should still be done by hand. The elimination of the adhesive tape also saves material.
  • the second point at which the outer surfaces of the throttle and intake manifold are connected to one another by means of ultrasonic welding is approximately 5 mm to 20 mm, in particular about 5 mm to 15 mm, more particularly about 10 mm, spaced from the first point at which the throttle tube enters the interior of the intake manifold.
  • the throttle tube can be guided into the interior of the intake manifold in a variety of ways.
  • the suction pipe may have a puncture or an entry hole for the throttle pipe in its wall, for example.
  • a connection pipe which has a connection point on one side for an end of a first partial suction pipe and a throttle pipe and is therefore widened.
  • the second partial intake manifold and the throttle tube are inserted into the expansion.
  • Another possibility is to provide one of the partial suction pipes with a cover at one of its ends, which has an insertion hole for the second partial suction pipe and an entry hole for the throttle pipe.
  • the suction pipe has a larger diameter at the first point than at the second point.
  • the second point at which a part of the throttle tube located outside the intake manifold is fixed to the intake manifold by ultrasonic welding, is preferably downstream of the first point at which the throttle tube enters the intake manifold, with respect to the refrigerant flowing in the intake manifold entry.
  • the refrigeration device according to the invention can, for example, be a refrigerator or freezer, for example for domestic use.
  • the present invention also includes a method for connecting a suction pipe of a refrigeration device to a throttle pipe.
  • the method has the following steps: leading the throttle tube out of the interior of the intake manifold at a first point of the intake manifold serving as an exit point; Connecting the suction pipe and the throttle pipe at the first point, in particular by soldering; Bringing an outer surface of a part of the throttle tube located outside the intake manifold into contact with an outer surface of the intake manifold at a second location of the intake manifold; Connect the suction pipe and the throttle pipe at the second point.
  • the outer surfaces of the intake manifold and the throttle tube are connected to one another by ultrasonic welding.
  • the method steps mentioned are preferably carried out in the order listed above.
  • the throttle tube can first be inserted into the interior of the intake manifold, then the throttle tube can be fixed to the intake manifold by means of ultrasonic welding for later protection against kinking, and then the throttle tube and the intake manifold can be connected to each other at the entry point of the throttle tube, which is preferably done by soldering ,
  • FIG. 1 shows a part of an evaporator 1 with a throttle tube 1 which supplies a refrigerant and a suction tube 2 which discharges the refrigerant, and the connection of the two tubes in front of the evaporator 1 in a sectional view.
  • the throttle tube 1 shows a throttle pipe 1 and a suction pipe 2 of a refrigeration device according to the invention.
  • the refrigerator itself is not shown because its structure is known to the person skilled in the art.
  • the refrigerator can be a refrigerator, for example.
  • the throttle tube 1 leads liquefied refrigerant to an evaporator 3 of the refrigeration device. It opens into a refrigerant line 4 of the evaporator 3, which, which cannot be seen from the detail shown, extends in a meandering manner over the entire surface of the evaporator 3.
  • the end of the refrigerant line 4 opens into a connection section 5 of the evaporator 3, into which the suction pipe 2 is inserted and fastened.
  • the suction pipe 2 leads the evaporated refrigerant away from the evaporator 3.
  • the intake manifold 2 and the throttle tube 1 are each thin-walled tubes with an inner diameter of a few millimeters in the case of the intake manifold 2 and fractions of a millimeter in the case
  • the throttle tube 1 In front of the evaporator 3, the throttle tube 1 enters the intake manifold 2 at a first point A of the intake manifold 2 and is continued up to the evaporator 3 in the intake manifold 2 until it ends in the connection section 5 of the evaporator 3.
  • the liquefied refrigerant guided in the throttle tube 1 is pre-cooled by heat exchange with the evacuated, evaporated refrigerant in the intake manifold 2.
  • the suction pipe 2 is formed from at least two partial suction pipes 9 and 10, which are connected to one another in a liquid-tight and gas-tight manner by a connecting pipe 11.
  • the partial suction pipe 10 directly connected to the evaporator 3 is connected at one of its ends to the connecting pipe 11, which has a first point A, which is widened and has an outlet point for the throttle pipe.
  • the connecting pipe 11 which has a first point A, which is widened and has an outlet point for the throttle pipe.
  • the throttle tube 1 is continued up to the evaporator 3 in the partial intake manifold 10.
  • the partial suction pipe 9 and the throttle pipe 1 are tightly connected to the partial suction pipe 10 by soldering at the widening of the connecting pipe 11.
  • the throttle tube 1 is inserted at point A of the intake manifold 2 through a puncture in the wall of the intake manifold 2 or the connecting tube 11 or an entry hole into the intake manifold 2 is.
  • the suction pipe 2 could then be configured in one piece.
  • the connecting pipe 11 at the first point A with a cover which has two through holes, one for inserting the partial suction pipe 9 and one for inserting the throttle pipe 1.
  • the throttle pipe 1 and the suction pipe 2 would also come on in this case the entry point of the throttle tube 1 in the intake manifold 2 connected by soldering.
  • the intake manifold 2 and the throttle tube 1 are usually made of copper or a copper alloy. When soldering, the structure of the copper material is changed, which leads to an impairment of the strength properties of the copper material.
  • the throttle tube 1 can therefore bend slightly under mechanical stress at the soldered entry point into the intake manifold 2. In order to prevent this, the throttle tube 1 is fixed at a further, second point B to the intake manifold 2 by means of ultrasonic welding. At this point B, the throttle tube 1 is located outside the intake manifold 2.
  • the second location B of the intake manifold 2 is thus downstream of the first location A of the intake manifold 2 with respect to the refrigerant guided in the intake manifold 2 the first point A and the second point B are spaced apart by approximately 5 mm to 20 mm, preferably approximately 5 mm to 15 mm and particularly preferably approximately 10 mm.
  • a connection of the throttle tube 1 and the intake manifold 2 at the two points A and B can be carried out, for example, as follows:
  • the throttle tube 1 is led out of the interior of the intake manifold 2 at point A and connected to it by soldering. Thereafter, an outer surface of a part of the throttle tube 1 located outside the intake manifold 2 is brought into contact with an outer surface of the intake manifold 2 at point B, ie the throttle tube 1 is placed on the intake manifold 2.
  • the contacting outer surfaces of throttle tube 1 and intake manifold 2 are connected to one another by ultrasonic welding. This is done by excitation with high-frequency ultrasound. The frequencies here can range from around 20 000 to 60,000 hertz.
  • the surfaces of the throttle tube 1 and the suction tube 2 rub against each other and heat up so strongly that their contact surfaces fuse with one another.
  • the ultrasonic energy is supplied via a so-called sonode.
  • the sonode amplifies the ultrasound generated, for example, by a piezo composite oscillator.
  • a piezo composite oscillator can be constructed from a plurality of piezoceramic perforated disks which are clamped together via metallic end pieces.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un appareil réfrigérant muni d'un tuyau d'étranglement (1) et d'un tuyau d'aspiration (2) pour fluide réfrigérant. Le tuyau d'étranglement (1) est introduit en un premier point (A) du tuyau d'aspiration (2), à l'intérieur dudit tuyau d'aspiration (2) et est raccordé audit tuyau d'aspiration. Le tuyau d'étranglement (1 et le tuyau d'aspiration (2) sont raccordés l'un à l'autre, en un second point (B) du tuyau d'aspiration (2), où les faces extérieures du tuyau d'étranglement (1) et du tuyau d'aspiration (2) sont en contact. Selon l'invention, à cet effet, les faces extérieures du tuyau d'étranglement (1) et du tuyau d'aspiration (2) sont raccordées les unes aux autres, par soudage par ultrasons, au niveau du second point (B). L'invention concerne en outre un procédé permettant de raccorder le tuyau d'étranglement (1) et le tuyau d'aspiration (2).
PCT/EP2004/053358 2003-12-13 2004-12-08 Appareil refrigerant muni d'un tuyau d'admission et d'un tuyau d'etranglement soudes par ultrasons WO2005064246A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04804736A EP1702184A1 (fr) 2003-12-23 2004-12-08 Appareil refrigerant muni d'un tuyau d'admission et d'un tuyau d'etranglement soudes par ultrasons
US10/584,161 US20080016904A1 (en) 2003-12-13 2004-12-08 Refrigerating Unit Comprising An Ultrasound-Welded Suction Tube And A Throttling Tube

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10360899.0 2003-12-23
DE10360899A DE10360899A1 (de) 2003-12-23 2003-12-23 Kältegerät mit ultraschallverschweißtem Saug- und Drosselrohr

Publications (1)

Publication Number Publication Date
WO2005064246A1 true WO2005064246A1 (fr) 2005-07-14

Family

ID=34683832

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/053358 WO2005064246A1 (fr) 2003-12-13 2004-12-08 Appareil refrigerant muni d'un tuyau d'admission et d'un tuyau d'etranglement soudes par ultrasons

Country Status (6)

Country Link
US (1) US20080016904A1 (fr)
EP (1) EP1702184A1 (fr)
CN (1) CN100412469C (fr)
DE (1) DE10360899A1 (fr)
RU (1) RU2375650C2 (fr)
WO (1) WO2005064246A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8687968B2 (en) 2008-08-18 2014-04-01 Nippon Telegraph And Telephone Corporation Vector sum phase shifter, optical transceiver, and control circuit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010029581A1 (de) * 2010-06-01 2011-12-01 BSH Bosch und Siemens Hausgeräte GmbH Saug-Drosselrohr für ein Kältegerät
KR101938713B1 (ko) * 2012-02-24 2019-01-16 삼성전자주식회사 냉장고
CN109737249A (zh) * 2019-03-05 2019-05-10 昆山一鼎工业科技有限公司 一种流体管路吸取装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1516944A (fr) * 1967-01-20 1968-02-05 Siemens Elektrogeraete Gmbh Machine frigorifique à compresseur incorporée à un réfrigérateur à isolement par mousse plastique
US5269158A (en) * 1991-06-22 1993-12-14 Krupp Vdm Gmbh Evaporator for a compressor-refrigerating apparatus
EP0788860A1 (fr) * 1996-02-07 1997-08-13 C.G.A. COMPAGNIA GENERALE ALLUMINIO S.p.A. Ensemble d'échange de chaleur, et procédé d'installation de fabrication relatif
EP1020691A1 (fr) * 1999-01-11 2000-07-19 VDM Evidal GmbH Système de tube capillaire et d'aspiration pour systèmes évaporatifs, en particulier systèmes de cycle froid
DE10055915A1 (de) * 2000-11-10 2002-05-23 Bsh Bosch Siemens Hausgeraete Kältemittelkreislauf für eine Kältemaschine
WO2003062719A1 (fr) * 2002-01-23 2003-07-31 BSH Bosch und Siemens Hausgeräte GmbH Procede et outil pour monter une conduite capillaire dans une platine d'evaporateur et platine d'evaporateur produite a l'aide dudit procede et dudit outil

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1106628A (fr) * 1976-10-27 1981-08-11 Robert B. Gelbard Echangeur de chaleur haut rendement pour groupe tube d'aspiration et capillaire de refrigeration
CA2409279C (fr) * 2000-06-26 2010-03-23 Multisorb Technologies, Inc. Tube en u et unite adsorbante integres

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1516944A (fr) * 1967-01-20 1968-02-05 Siemens Elektrogeraete Gmbh Machine frigorifique à compresseur incorporée à un réfrigérateur à isolement par mousse plastique
US5269158A (en) * 1991-06-22 1993-12-14 Krupp Vdm Gmbh Evaporator for a compressor-refrigerating apparatus
EP0788860A1 (fr) * 1996-02-07 1997-08-13 C.G.A. COMPAGNIA GENERALE ALLUMINIO S.p.A. Ensemble d'échange de chaleur, et procédé d'installation de fabrication relatif
EP1020691A1 (fr) * 1999-01-11 2000-07-19 VDM Evidal GmbH Système de tube capillaire et d'aspiration pour systèmes évaporatifs, en particulier systèmes de cycle froid
DE10055915A1 (de) * 2000-11-10 2002-05-23 Bsh Bosch Siemens Hausgeraete Kältemittelkreislauf für eine Kältemaschine
WO2003062719A1 (fr) * 2002-01-23 2003-07-31 BSH Bosch und Siemens Hausgeräte GmbH Procede et outil pour monter une conduite capillaire dans une platine d'evaporateur et platine d'evaporateur produite a l'aide dudit procede et dudit outil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8687968B2 (en) 2008-08-18 2014-04-01 Nippon Telegraph And Telephone Corporation Vector sum phase shifter, optical transceiver, and control circuit

Also Published As

Publication number Publication date
CN100412469C (zh) 2008-08-20
DE10360899A1 (de) 2005-07-21
EP1702184A1 (fr) 2006-09-20
RU2006120460A (ru) 2008-01-27
RU2375650C2 (ru) 2009-12-10
US20080016904A1 (en) 2008-01-24
CN1898508A (zh) 2007-01-17

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