EP0342155A3 - Laboratoriumsgerät zum wahlweisen Heizen und Kühlen - Google Patents

Laboratoriumsgerät zum wahlweisen Heizen und Kühlen Download PDF

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Publication number
EP0342155A3
EP0342155A3 EP89810324A EP89810324A EP0342155A3 EP 0342155 A3 EP0342155 A3 EP 0342155A3 EP 89810324 A EP89810324 A EP 89810324A EP 89810324 A EP89810324 A EP 89810324A EP 0342155 A3 EP0342155 A3 EP 0342155A3
Authority
EP
European Patent Office
Prior art keywords
cooling
heating
laboratory
samples
peltier elements
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Withdrawn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
EP89810324A
Other languages
English (en)
French (fr)
Other versions
EP0342155A2 (de
Inventor
Ulrich Christian Dr. Ing. Agr. Knopf
Josef E. Jun. Sieber
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.)
Seyffer and Co
Original Assignee
AGROGEN-STIFTUNG
Knopf Ulrich C Dr
Seyffer and Co
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 CH1918/88A external-priority patent/CH676332A5/de
Priority claimed from CH151989A external-priority patent/CH679282A5/de
Application filed by AGROGEN-STIFTUNG, Knopf Ulrich C Dr, Seyffer and Co filed Critical AGROGEN-STIFTUNG
Publication of EP0342155A2 publication Critical patent/EP0342155A2/de
Publication of EP0342155A3 publication Critical patent/EP0342155A3/de
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L7/00—Heating or cooling apparatus; Heat insulating devices
    • B01L7/52—Heating or cooling apparatus; Heat insulating devices with provision for submitting samples to a predetermined sequence of different temperatures, e.g. for treating nucleic acid samples
    • 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
    • F25B21/00—Machines, plants or systems, using electric or magnetic effects
    • F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
    • F25B21/04—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect reversible

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Control Of Temperature (AREA)
  • Devices For Use In Laboratory Experiments (AREA)

Abstract

Die Erfindung betrifft ein handliches Laboratoriumsgerät zum wahlweisen Heizen oder Kühlen von Proben. Als thermisches Element dient ein Block von einem oder mehreren Peltierelementen, der durch Umkehr der Stromrichtung nach Belieben zum Kühlen oder Heizen benützt werden kann. Der eine Pol der Peltierelemente steht in thermischem Kontakt mit einem Metallblock; der Gegenpol ist mit einem Wärme­ austauscher thermisch verbunden Der Metallblock, mit einer heiz- oder kühlbaren horizontalen Arbeitsfläche versehen, ist vom Wärmeaustauscher durch eine Isolationsschicht getrennt und auch auf seinen nicht benützten Aussenflächen durch einen Isolationsmantel geschützt. Die Gefässe mit den zu heizenden bezw. zu kühlenden Proben können gegebenenfalls auch in auswechselbaren, mit passenden Oeffnungen versehenen Arbeitsmoduln untergebracht werden, die eine auf die Arbeitsfläche zu stellende ebene Kontaktfläche aufweisen.
Das Gerät besteht aus drei voneinander getrennten Teilen, dem eigentlichen Heiz- und Kühlblock, den Moduln zur Aufnahme der Probengefässe und der elektrischen Speise- und Steuereinheit. Die letztere besitzt ein getaktetes Netzteil für die Speisung der Peltier-Elemente und einen elektroni­ schen Steuerteil, der gegebenenfalls mit einem Mikrocomputer für die Programmierung von Temperaturzyklen verbunden werden kann.
Das Heiz- und Kühlgerät eignet sich einerseits für die Arbeit im biologischen, biochemischen und genetischen Laboratorium, bei welcher oft Temperaturzyklen durchgeführt werden müssen, die teils oberhalb und teils unterhalb der Raumtemperatur verlaufen, anderseits aber auch ausserhalb des Laboratoriums, z.B. für die Arbeit an, bezw. den Transport von temperaturlabilen Proben in mobilen Einheiten, wie z.B. in Autos, Eisenbahnen und Flugzeugen.
EP89810324A 1988-05-13 1989-04-28 Laboratoriumsgerät zum wahlweisen Heizen und Kühlen Withdrawn EP0342155A3 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH1918/88A CH676332A5 (en) 1988-05-13 1988-05-13 Temp. control for laboratory specimens
CH1918/88 1988-05-13
CH1519/89 1989-04-21
CH151989A CH679282A5 (en) 1989-04-21 1989-04-21 Temp. control for laboratory specimens

Publications (2)

Publication Number Publication Date
EP0342155A2 EP0342155A2 (de) 1989-11-15
EP0342155A3 true EP0342155A3 (de) 1990-06-27

Family

ID=25687877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810324A Withdrawn EP0342155A3 (de) 1988-05-13 1989-04-28 Laboratoriumsgerät zum wahlweisen Heizen und Kühlen

Country Status (3)

Country Link
US (1) US5061630A (de)
EP (1) EP0342155A3 (de)
CA (1) CA1317646C (de)

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US5061630A (en) 1991-10-29
CA1317646C (en) 1993-05-11

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