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DE823299C - Process for the production of thermocouples for electrothermal cold generation - Google Patents

Process for the production of thermocouples for electrothermal cold generation

Info

Publication number
DE823299C
DE823299C DEP34549A DEP0034549A DE823299C DE 823299 C DE823299 C DE 823299C DE P34549 A DEP34549 A DE P34549A DE P0034549 A DEP0034549 A DE P0034549A DE 823299 C DE823299 C DE 823299C
Authority
DE
Germany
Prior art keywords
thermocouples
legs
production
cold generation
produced
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.)
Expired
Application number
DEP34549A
Other languages
German (de)
Inventor
Dr Phil Eduard Justi
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.)
Siemens Schuckertwerke AG
Siemens Corp
Original Assignee
Siemens Schuckertwerke AG
Siemens 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
Application filed by Siemens Schuckertwerke AG, Siemens Corp filed Critical Siemens Schuckertwerke AG
Priority to DEP34549A priority Critical patent/DE823299C/en
Application granted granted Critical
Publication of DE823299C publication Critical patent/DE823299C/en
Expired legal-status Critical Current

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
    • 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
    • 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
    • F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
    • F25B2321/02—Details of machines, plants or systems, using electric or magnetic effects using Peltier effects; using Nernst-Ettinghausen effects
    • F25B2321/023—Mounting details thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Powder Metallurgy (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Description

Verfahren zur Herstellung von Thermoelementen zur elektrothermischen Kälteerzeugung Die -Möglichkeit, mit Thermoelementen eine Wärmeförderung vorzunehmen, ist bekannt. Der thermoelektrische Effekt war jedoch bisher zu gering, um diesen z. B. technisch für die Kälteerzeugung auszunutzen. Für die Größe der sogenannten effektiven Thermokraft ist das Verhältnis der elektrischen Leitfähigkeit zur Wärmeleitfähigkeit maßgebend. Es handelt sich hierbei um die sogenannte Wiedemann-Franzsche Zahl.Process for the manufacture of thermocouples for electrothermal Cold generation The possibility of carrying out heat transfer with thermocouples, is known. However, the thermoelectric effect has so far been too small to achieve this z. B. to exploit technically for refrigeration. For the size of the so-called effective thermal force is the ratio of electrical conductivity to thermal conductivity authoritative. This is the so-called Wiedemann-Franz number.

Der vorliegenden Erfindung liegt nun die Erkenntnis zugrunde, daß es durch strukturelle Beeinflussung der Stoffe, aus denen die Thermoelemente bestehen, möglich ist, eine Steigerung der effektiven Thermokraft zu erzielen. Gemäß der Erfindung wird bei der Herstellung von Thermoelementen eine derartige Beeinflussung der die Schenkel bildenden Stoffe vorgenommen, daß eine Herabsetzung der Wärmeleitfähigkeit erfolgt. Dies kann vor allem durch Beeinflussung der Packungsdichte beim Herstellen der Thermoelemente durch Pressen oder Sintern aus einem körnigen Pulver vorgenommen werden. Es kann auch ein Herstellen durch Verpressen von Spänen oder Gespinsten erfolgen, oder die Thermoelemente werden aus Folien o. dgl. aufgebaut. Es kann auch durch Verwendung von Schaumbildnern oder ähnlichen Verfahren eine entsprechende Strukturänderung erzielt werden, die eine Steigerung der effektiven Thermokraft ergibt. Das erfindungsgemäße Verfahren wird sich besonders vorteilhaft bei solchen Stoffen oder Stoffpaaren auswirken, die an sich bereits relativ hohe Thermokräfte aufweisen, wie etwa das Paar Antimon-Wismut.The present invention is based on the knowledge that it by structurally influencing the substances from which the thermocouples are made, is possible to achieve an increase in the effective thermal power. According to the invention in the manufacture of thermocouples such an influence on the Leg-forming substances made that a reduction in thermal conductivity he follows. This can mainly be done by influencing the packing density during manufacture the thermocouples are made by pressing or sintering from a granular powder will. It can also be produced by pressing chips or webs or the thermocouples are made of foils or the like. It can also by using foaming agents or similar processes a corresponding one Structural change can be achieved, which increases the effective thermal power results. The method according to the invention is particularly advantageous in such Fabrics or pairs of fabrics affect which in itself is already relative have high thermal forces, such as the antimony-bismuth pair.

Claims (1)

PATENTANSPRÜCHE: r. Verfahren zur Herstellung von Thermoelementen zur Wärmeförderung, insbesondere zur elektrothermischen Kälteerzeugung, dadurch gekennzeichnet, daß durch Strukturbeeinflussung der die Schenkel des Thermoelementes bildenden Stoffe eine Herabsetzung der Wärmeleitfähigkeit und dadurch eine Steigerung der effektiven Thermokraft erzeugt wird. ?. Verfahren nach Anspruch r, dadurch gekennzeichnet, daß die Schenkel der Thermoelemente durch Pressen, Sintern aus einem insbesondere körnigen Pulver hergestellt werden. 3. Verfahren nach Anspruch r, dadurch gekennzeichnet, daß die Schenkel der Thermoelemente durch Grob- bzw. Feinkornschmelzun. hergestellt werden. d. Verfahren nach Anspruch r, dadurch gekennzeichnet, daß die Schenkel der Thermoelemente aus Folien, Gespinsten o. dgl. aufgebaut werden. 5. Verfahren nach Anspruch r, dadurch gekennzeichnet, daß die die Schenkel der Thermoelemente bildenden Stoffe durch Schaumbildner in ihrer Struktur beeinflußt werden. PATENT CLAIMS: r. Process for the production of thermocouples for heat transfer, in particular for electrothermal cold generation, characterized in that by influencing the structure of the substances forming the legs of the thermocouple, a reduction in thermal conductivity and thereby an increase in the effective thermal force is produced. ?. Method according to Claim r, characterized in that the legs of the thermocouples are produced from an in particular granular powder by pressing or sintering. 3. The method according to claim r, characterized in that the legs of the thermocouples by coarse or fine-grain melting. getting produced. d. Method according to claim r, characterized in that the legs of the thermocouples are built up from foils, webs or the like. 5. The method according to claim r, characterized in that the substances forming the legs of the thermocouples are influenced in their structure by foaming agents.
DEP34549A 1949-02-19 1949-02-19 Process for the production of thermocouples for electrothermal cold generation Expired DE823299C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP34549A DE823299C (en) 1949-02-19 1949-02-19 Process for the production of thermocouples for electrothermal cold generation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP34549A DE823299C (en) 1949-02-19 1949-02-19 Process for the production of thermocouples for electrothermal cold generation

Publications (1)

Publication Number Publication Date
DE823299C true DE823299C (en) 1951-12-03

Family

ID=7373772

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP34549A Expired DE823299C (en) 1949-02-19 1949-02-19 Process for the production of thermocouples for electrothermal cold generation

Country Status (1)

Country Link
DE (1) DE823299C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1150694B (en) * 1959-12-24 1963-06-27 Siemens Ag Heating or cooling device with Peltier elements and method for producing such devices
DE1167931B (en) * 1961-08-18 1964-04-16 Bbc Brown Boveri & Cie Especially suitable as a leg for thermal or Peltier elements
DE1278111B (en) * 1954-12-15 1968-09-19 Minnesota Mining & Mfg Semiconductor material made of p-conductive lead telluride, suitable as a limb for thermocouples

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1278111B (en) * 1954-12-15 1968-09-19 Minnesota Mining & Mfg Semiconductor material made of p-conductive lead telluride, suitable as a limb for thermocouples
DE1150694B (en) * 1959-12-24 1963-06-27 Siemens Ag Heating or cooling device with Peltier elements and method for producing such devices
DE1167931B (en) * 1961-08-18 1964-04-16 Bbc Brown Boveri & Cie Especially suitable as a leg for thermal or Peltier elements

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