WO2009008024A2 - Commutateur thermoélectrique automatique en courant continu - Google Patents

Commutateur thermoélectrique automatique en courant continu Download PDF

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Publication number
WO2009008024A2
WO2009008024A2 PCT/IT2008/000448 IT2008000448W WO2009008024A2 WO 2009008024 A2 WO2009008024 A2 WO 2009008024A2 IT 2008000448 W IT2008000448 W IT 2008000448W WO 2009008024 A2 WO2009008024 A2 WO 2009008024A2
Authority
WO
WIPO (PCT)
Prior art keywords
tension
current
switch
supply
equipments
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.)
Ceased
Application number
PCT/IT2008/000448
Other languages
English (en)
Other versions
WO2009008024A3 (fr
Inventor
Claudio Mrak
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2009008024A2 publication Critical patent/WO2009008024A2/fr
Publication of WO2009008024A3 publication Critical patent/WO2009008024A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for DC applications

Definitions

  • the switch d.c. master (slave) has got inside itself 6 operational amplifiers, 4 logic doors and some active and passive electronic components.
  • the entries of A. O. are connected by two resistive carriers to the SHUNT of the positive of primary's supply.
  • the A.O. is used to amplify the tension present at the ends of the SHUNT; the resistive carriers will give the possibility to vary the sensitivity at the entry of the operational.
  • This phase has the task to steer the MOS-FET of power; the task of this phase is subjected to the phase comparator, until the level of the little foot n. 5, as already mentioned, will go beyond the threshold present in the little foot n. 6; the exit 7 will remain at a logic level (1).
  • the FLIP-FLOP will permit the MOS-FET of power to send the primary tension that is at the entry, towards the user.
  • the FLIP-FLOP has been endowed with two buttons. One is START, the second STOP. START re-establishes the tension every time the device goes under protection, while stop interrupts the tension if necessary.
  • the slave is sent to an entrance of the logic door NAND I. C. (7), which prepares the switch slave for the pre stand-by picture 2/5.
  • the stand-by will be transmitted by the switch master, to pin n. 3 should it need power, changing the logic stage of the comparator n. 4 from 1-0, taking the slave to the stand-by position.
  • the little feet of the comparator have the opposite tension reference.
  • the other two operational amplifiers A O. I C. (5) LC. (6) have the task of controlling, by some resistive dividers and a reference tension, the tension of the primary supply of the switch master-slave, before the stabilizers of tension.
  • the exits 1 and 7 of the two comparators are sent to the FLIP-FLOP.
  • the device is controlled by a thermostat N A. at a temperature that may change from a variation of 30°-75°C (celsius) according to the type.
  • the thermostat will take the FLIP-FLOP to earth by sending the device to emergency; this device may be refitted only when the temperature has gone back to its parameters.
  • -8 DISPLAY.
  • the display conveniently connected with the signals will show the typologies of the different situations (see how the switch works).
  • the device may be monopolar or bipolar.
  • the device has got a switch, three buttons and a display.
  • the switch is the system that allows the above mentioned functions.
  • buttons the first "start”, gives the electric current to the user, the second “stop” forbids the current towards the user, the third “stop buzzer” only stops the sound of the device that has been given the alarm (this is due to the features mentioned above).
  • this device stops the power supply towards the user, informing both acoustically and visually, by the help of a "Bip" and a "display", that there is something wrong which may be produced by a short circuit, by the maximum absorption, by the highest temperature and by the highest and least tension of the accumulator; the display shows the different types of alarm, which are marked, for the switch d.c. master and the switch d.c. slave by the letter "A" (It appears systematically in every types of alarm with intermittence) + Bip.
  • the function stand-by is marked with the letter "S" and refers only to the switch d.c. slave and the functions of the switch d.c. master remain unchanged.
  • the alpha numerical function 6A + Bip of the switch d.c. slave is referred to three interventions: "L” stands for least tension of the accumulator/s or other source.
  • a further surety of the switch d.c. master and slave is given by the existence inside it, of a fuse whose only function is to preserve the user from a possible, but rare damage of the safety device.
  • Both the switch d.c. master and the slave are active devices; this means that they need their own source of energy that may be obtained from the supply source of the same user, or from an external source.
  • the device may be monopolar or bipolar 12 or 24 V.

Landscapes

  • Emergency Alarm Devices (AREA)
  • Alarm Systems (AREA)
  • Push-Button Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Relay Circuits (AREA)
  • Control Of Temperature (AREA)

Abstract

L'invention porte sur un dispositif purement électronique, conçu pour interrompre, dans le temps le plus court possible, l'alimentation de courant continu vers l'utilisateur que ce soit pour l'absorption maximale ou pour la température la plus élevée ou en raison d'un court-circuit, évitant ainsi le chauffage en excès (surchauffe) et la détérioration des câbles filaires d'alimentation (qui peuvent être la cause d'un incendie) en raison d'un courant très élevé en jeu. Le commutateur thermoélectrique peut avoir différents seuils d'intervention fixe qui peuvent aller de 100 mA à 20, 30, 40 etc. A (ampère) ou variable. Le modèle examiné est d'un type variable; si l'on effectue des changements appropriés à certaines petites résistances, on peut obtenir le modèle fixe que l'on souhaite, à 12 et/ou 24 V (volt) avec des déconnexions d'ampérage de 100 mA à 20, 30, 40 etc. A. Le commutateur thermoélectrique possède (contient) d'autres caractéristiques qui le rendent polyvalent pour des utilisations dans lesquelles il y a une large utilisation d'accumulateurs 12 et/ou 24 V. Le dispositif a été conçu dans le but d'avoir de façon continue sous contrôle, lorsqu'il est activé, à la fois le courant et la tension du courant continu parmi lesquels ceux des accumulateurs en couplage série ou parallèle. Cette dernière caractéristique a une double tâche. 1) Elle doit contrôler la tension de l'accumulateur par l'arrêt du dispositif de blocage (en raison de la tension minimale de l'accumulateur lui-même) évitant ainsi le seuil du taux de décharge au-delà duquel l'accumulateur ne peut pas et ne doit pas aller, étant donné qu'il peut être détruit par sulfatation. 2) Elle doit contrôler la tension maximale, pour protéger les appareils qui sont connectés à celui-ci, d'une tension de charge excessive, provenant de sources externes connectées au même accumulateur (voir charge alternateur - batterie etc.). Le commutateur thermoélectrique en courant continu maître, en fonction des exigences, peut être connecté au commutateur thermoélectrique en courant continu esclave dont il a les mêmes caractéristiques mais avec une option supplémentaire : il peut passer en position d'attente s'il y a nécessité de plus de puissance; cette attente est envoyé par une impulsion du commutateur en courant continu maître au commutateur en courant continu esclave, qui est déjà en position de pré-attente : qui finira automatiquement lorsque le commutateur en courant continu maître diminuera sa consommation énergétique. Une autre caractéristique du dispositif, sur le même courant conduit, est qu'il a une chute potentielle remarquable de la dispersion de température du même dispositif avec un effet magnétocalorique classique.
PCT/IT2008/000448 2007-07-06 2008-07-02 Commutateur thermoélectrique automatique en courant continu Ceased WO2009008024A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRM2007A000379 2007-07-06
ITRM20070379 ITRM20070379A1 (it) 2007-07-06 2007-07-06 Interruttore termo elettronico in corrente continua

Publications (2)

Publication Number Publication Date
WO2009008024A2 true WO2009008024A2 (fr) 2009-01-15
WO2009008024A3 WO2009008024A3 (fr) 2009-03-19

Family

ID=39941795

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2008/000448 Ceased WO2009008024A2 (fr) 2007-07-06 2008-07-02 Commutateur thermoélectrique automatique en courant continu

Country Status (2)

Country Link
IT (1) ITRM20070379A1 (fr)
WO (1) WO2009008024A2 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6288881B1 (en) * 1999-08-17 2001-09-11 John A. Melvin Battery voltage regulator protection circuits
US20030080621A1 (en) * 2001-10-26 2003-05-01 Kirk John B. Automotive electrical system protection device
US6734577B2 (en) * 2002-05-16 2004-05-11 Earl R. Holcomb, Jr. Vehicle auxiliary accessory system
JP2006340450A (ja) * 2005-05-31 2006-12-14 Mitsumi Electric Co Ltd 電池保護回路

Also Published As

Publication number Publication date
ITRM20070379A1 (it) 2009-01-07
WO2009008024A3 (fr) 2009-03-19

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