DE19615643A1 - Arrangement for protecting voltage-limited electronic modules against over-heating and over-voltage - Google Patents
Arrangement for protecting voltage-limited electronic modules against over-heating and over-voltageInfo
- Publication number
- DE19615643A1 DE19615643A1 DE1996115643 DE19615643A DE19615643A1 DE 19615643 A1 DE19615643 A1 DE 19615643A1 DE 1996115643 DE1996115643 DE 1996115643 DE 19615643 A DE19615643 A DE 19615643A DE 19615643 A1 DE19615643 A1 DE 19615643A1
- Authority
- DE
- Germany
- Prior art keywords
- temperature
- voltage
- connection
- solder
- switching element
- 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- Withdrawn
Links
- 238000013021 overheating Methods 0.000 title claims 2
- 229910000679 solder Inorganic materials 0.000 claims abstract description 23
- 238000002844 melting Methods 0.000 claims abstract 7
- 230000008018 melting Effects 0.000 claims abstract 7
- 239000004020 conductor Substances 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 2
- 230000005764 inhibitory process Effects 0.000 claims 3
- 238000010309 melting process Methods 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- 230000001681 protective effect Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/14—Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
- H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
- H01H37/761—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
- H01H2037/762—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit using a spring for opening the circuit when the fusible element melts
- H01H2037/763—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit using a spring for opening the circuit when the fusible element melts the spring being a blade spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
- H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
- H01H37/761—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0254—High voltage adaptations; Electrical insulation details; Overvoltage or electrostatic discharge protection ; Arrangements for regulating voltages or for using plural voltages
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10174—Diode
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10181—Fuse
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/17—Post-manufacturing processes
- H05K2203/176—Removing, replacing or disconnecting component; Easily removable component
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/30—Details of processes not otherwise provided for in H05K2203/01 - H05K2203/17
- H05K2203/304—Protecting a component during manufacturing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
- H05K3/3421—Leaded components
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fuses (AREA)
- Protection Of Static Devices (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Überspannungsschutzanord nung (1, 2) für elektronische Baugruppen nach dem Oberbegriff des Anspruchs 1.The invention relates to an overvoltage protection arrangement ( 1 , 2 ) for electronic assemblies according to the preamble of claim 1.
Aus der DE-AS 18 16 553 ist eine Überspannungsschutzeinrich tung gemäß dem Oberbegriff des Anspruchs 1 bekannt, bei der sich die Forderung nach einem besonderen Schutz daraus ergibt, daß die Verbraucher oder Meßwertgeber in explosionsgefährdeten Räumen liegen. Die zur Spannungsbegrenzung dienenden Dioden sollen dabei durch vorgeschaltete Feinsicherungen gegen unzulässige Erwärmung geschützt sein.DE-AS 18 16 553 is an overvoltage protection device device known according to the preamble of claim 1, in which the demand for special protection arises from this, that the consumers or sensors in potentially explosive atmospheres Rooms. The diodes used to limit the voltage are to be protected against this by upstream microfuses inadmissible heating.
In der Praxis hat sich jedoch gezeigt, daß der Schutz durch die Sicherung nicht immer ausreicht, wenn die Überlastung in einem weiten Bereich schwanken kann.In practice, however, it has been shown that protection by the fuse is not always sufficient if the overload in can fluctuate over a wide range.
Erwärmt sich das spannungsbegrenzende Element durch eine an stehende Überspannung bzw. durch den als Folge der Überspan nung hindurchfließenden Strom, so kann dieses Element nach kurzer Zeit, zum Beispiel im Sekunden- oder Minutenbereich, überlastet sein, bevor die vorgeschaltete strombegrenzende Schmelzsicherung zum Ansprechen gebracht wird.The voltage-limiting element heats up by a standing overvoltage or as a result of the overvoltage current flowing through, this element can short time, for example in the seconds or minutes range, be overloaded before the upstream current limiting Fuse is triggered.
Deshalb richtet sich die Erfindung auf einen Schutz gegen eine Zerstörung der Überspannungsschutzeinrichtung, die ihrerseits schwerwiegende Folgen nach sich ziehen kann, wenn die zu schützenden elektronischen Baugruppen sicherheitstechnische Schutzeinrichtungen darstellen.Therefore, the invention is directed to protection against Destruction of the surge protective device, which in turn can have serious consequences if too protective electronic assemblies Represent protective devices.
Gemäß der Erfindung ist vorgesehen, daß dem spannungsbegren zenden Element (1) ein temperaturempfindliches Schaltelement (2) unter besonders guter thermischer Kopplung (9) zugeordnet ist. Diese wird erreicht, indem ein Anschluß (7) des span nungsbegrenzenden Elements gleichermaßen einen Anschluß (8) des temperaturempfindlichen Schaltelements bildet.According to the invention it is provided that the voltage-limiting element ( 1 ) is assigned a temperature-sensitive switching element ( 2 ) with particularly good thermal coupling ( 9 ). This is achieved in that a connection ( 7 ) of the voltage-limiting element likewise forms a connection ( 8 ) of the temperature-sensitive switching element.
Im Falle einer unzulässigen Erwärmung wird der die Erwärmung hervorrufende Stromfluß unterbrochen, indem das temperaturemp findliche Schaltelement öffnet.In the event of inadmissible warming, it becomes warming causing current flow interrupted by the tempemp sensitive switching element opens.
Als Grundlage für einen vereinigenden Aufbau des spannungs begrenzenden Elements mit dem temperaturempfindlichen Schalt element eignet sich beispielsweise das Tragblech oder ein Lötanschluß in unmittelbarer Nähe des Gehäusekörpers (7) einer bipolaren Begrenzerdiodenanordnung oder eines zur Begrenzung verwendeten Halbleiterschalters, der wiederum ein aktiver Teil einer Schaltungsanordnung zur Spannungsbegrenzung sein kann. Das begrenzende Element führt an seinem Tragblech, seiner Kühlfahne oder an mindestens einer seiner Elektroden die durch die Begrenzungsfunktion hervorgerufene Temperatur. Benutzt man nun die temperaturführende Stelle selbst (7) als Teil des temperaturempfindlichen Schaltelements (8), ist eine optimale thermische Kopplung gegeben.As a basis for a unifying structure of the voltage-limiting element with the temperature-sensitive switching element, for example, the support plate or a solder connection in the immediate vicinity of the housing body ( 7 ) of a bipolar limiter diode arrangement or a semiconductor switch used for limitation, which in turn is an active part of a circuit arrangement for voltage limitation, is suitable can be. The limiting element guides the temperature caused by the limiting function on its support plate, its cooling vane or on at least one of its electrodes. If the temperature-carrying point itself (7) is now used as part of the temperature-sensitive switching element ( 8 ), there is an optimal thermal coupling.
Ein Tragblech oder eine Kühlfahne bietet darüber hinaus die für den Zusammenbau der Einheit geeignete mechanische Festig keit. Der Stromfluß unter normalen Betriebsbedingungen erfolgt über einen Metallfinger oder eine elektrisch leitfähige Feder, der bzw. die über einen Lottropfen mit der temperaturführenden Stelle des spannungsbegrenzenden Elements verbunden ist und unter mechanischer Spannung (22) steht. Anstelle der Feder und des Lottropfens kann auch eine Lotbrücke vorgesehen sein, die im Falle ihres Abschmelzens den Stromfluß unterbricht. Die Auslösetemperatur des verwendeten Lots beträgt vorzugsweise etwa 100°C, weil dann noch keine Beschädigung der Bauteile der Schutzeinrichtung und der gegebenenfalls zur Isolierung einge setzten Werkstoffe, insbesondere von Kunstharzen, zu erwarten ist.A carrier plate or a cooling vane also offers the mechanical strength suitable for assembling the unit. The current flow under normal operating conditions takes place via a metal finger or an electrically conductive spring which is connected to the temperature-carrying point of the voltage-limiting element via a solder drop and is under mechanical tension ( 22 ). Instead of the spring and the solder drop, a solder bridge can also be provided, which interrupts the current flow when it melts. The trigger temperature of the solder used is preferably about 100 ° C, because then no damage to the components of the protective device and any materials used for insulation, especially synthetic resins, is to be expected.
Zur näheren Erläuterung der Erfindung, die in der Zeichnung Fig. 1 als Schaltplan dargestellt ist, werden anhand der Zeichnungen Fig. 2 und Fig. 3 zwei Ausführungsbeispiele beschrieben.For further explanation of the invention, which is shown as a circuit diagram in the drawing Fig. 1, 3, two embodiments are based on the drawings Fig. 2 and Fig. Described.
Die zu schützende Elektronikbaugruppe (6) ist ein Über wachungsstromkreis für eine Batterie, die gegen Unter- und Überladung zu schützen ist, da sie bei Tiefentladung Schaden nehmen und bei Überladung explodieren kann.The electronics module ( 6 ) to be protected is a monitoring circuit for a battery which is to be protected against undercharging and overcharging, since it can be damaged in the event of deep discharge and can explode if overcharged.
Parallel zu der zu schützenden Überwachungselektronik liegt ein spannungsbegrenzendes Element (1), welches seine Begren zungsfunktion dann aufnimmt, wenn die Spannung an den Ein gangsklemmen (3, 4) einen für dem Überwachungsstromkreis zu hohen Wert überschreitet.Parallel to the monitoring electronics to be protected is a voltage-limiting element ( 1 ), which takes on its limiting function when the voltage at the input terminals ( 3 , 4 ) exceeds a value that is too high for the monitoring circuit.
Das spannungsbegrenzende Element kann beispielsweise eine Transienten-Suppressor-Schutzdiode oder ein Thyristor sein, dessen Zündelektrode mit der Anode einer passend dimensionier ten Zenerdiode verbunden ist und deren Kathode an die Anode des Thyristors geschaltet ist. Ersetzt man den Thyristor durch einen Triac, so spricht dieser in einer Richtung gemäß der Zenerspannung und in dazu inverser Richtung gemäß ihrer Fluß spannung in Diodenrichtung an, bewirkt also auch einen Schutz gegen eine Falschpolung der Versorgungsspannung. The voltage-limiting element can be, for example Transient suppressor protection diode or a thyristor, whose ignition electrode with the anode of a suitable dimension ten zener diode is connected and its cathode to the anode of the thyristor is switched. If you replace the thyristor a triac, it speaks in one direction according to the Zener voltage and in the opposite direction according to its flow voltage in the direction of the diode, thus also provides protection against incorrect polarity of the supply voltage.
Im normalen Betriebsfall ist das temperaturempfindliche Schaltelement, in Fig. 1 durch das Schaltersymbol (2) symbolisiert, stets geschlossen. Im Falle einer Überspannung an den Klemmen (3, 4) kommt es aufgrund des Stromflusses zu einer mehr oder weniger starken Erwärmung des spannungsbegren zenden Elements. Diese bleibt bei mäßiger Beanspruchung, zum Beispiel bis zu 100°C, ohne Folgen. Wird aber die zulässige Temperaturgrenze überschritten, bringt das spannungsbegren zende Element (1) das temperaturempfindliche Schaltelement (2) über die thermische Kopplung (9) zum Ansprechen.In normal operation, the temperature-sensitive switching element, symbolized in FIG. 1 by the switch symbol ( 2 ), is always closed. In the event of an overvoltage at the terminals ( 3 , 4 ), the voltage-limiting element heats up to a greater or lesser extent due to the current flow. With moderate stress, for example up to 100 ° C, this has no consequences. However, if the permissible temperature limit is exceeded, the voltage-limiting element ( 1 ) triggers the temperature-sensitive switching element ( 2 ) via the thermal coupling ( 9 ).
In dem Ausführungsbeispiel nach Fig. 2 schmilzt dann der Lottropfen (10) und gibt die Feder (2) frei, so daß diese sich entsprechend ihrer Vorspannung bewegen kann und damit jeden weiteren Stromfluß unterbricht.In the exemplary embodiment according to FIG. 2, the solder drop ( 10 ) then melts and releases the spring ( 2 ) so that it can move according to its pretension and thus interrupt any further current flow.
In dem Ausführungsbeispiel nach Fig. 3 schmilzt statt dessen die Lotbrücke (16) und zieht sich aufgrund ihrer Oberflächen spannung, unterstützt durch das sie umgebende Flußmittel (17), kugelförmig zusammen, wobei die elektrische Brückenverbindung öffnet und somit den Stromfluß unterbricht.In the embodiment of FIG. 3, the solder bridge ( 16 ) melts instead and pulls due to their surface tension, supported by the surrounding flux ( 17 ), spherical together, the electrical bridge connection opens and thus interrupts the flow of current.
Die weiteren Bezeichnungen in Fig. 2 und 3 bedeuten:The further designations in FIGS. 2 and 3 mean:
BezugszeichenlisteReference list
7, 8 = Gemeinsamer Anschluß des spannungsbegrenzenden
Elements und des temperaturempfindlichen Schaltelements;
14 = Platine;
11 = Lot zur Fixierung der Bauteile auf der Platine;
12, 13 = Leiterbahnen. 7 , 8 = common connection of the voltage-limiting element and the temperature-sensitive switching element;
14 = circuit board;
11 = solder for fixing the components on the board;
12 , 13 = conductor tracks.
Claims (5)
daß der zweite Anschluß des temperaturempfindlichen Schalt elements aus einer elektrisch leitfähigen Feder (2, 22) gebildet wird,
daß die Stromverbindung zwischen dem ersten und dem zweiten Anschluß durch einen Lottropfen (10) erfolgt, wobei die Schmelztemperatur des Lottropfens der vorgegebenen Temperatur zur Auslösung dem Stromhemmung entspricht,
und daß die Feder (2) eine Spannkraft (22) aufweist, die den lottropfenseitigen Teil des zweiten Anschlusses des tempera turempfindlichen Schaltelements von der Verbindungsstelle des spannungsbegrenzenden Elements (5, 7, 8) abzieht, wenn der Lottropfen seine Schmelztemperatur erreicht hat. 1. Arrangement for protecting a voltage-limiting circuit arrangement from overheating and for protecting the module connected to this arrangement from overvoltage with a series circuit comprising at least one voltage-limiting element of the voltage-limiting circuit arrangement and a temperature-sensitive switching element with at least a first and a second connection, the temperature sensitive switching element forms a current connection at normal operating temperature and a current inhibition when a predetermined temperature is exceeded, the electronic module to be protected being connected to the connection point of the voltage-limiting element with the temperature-sensitive switching element, and wherein between the voltage-limiting element and the temperature-sensitive switching element a thermally conductive connection is provided, characterized in that the thermally conductive connection ( 9 ) between the voltage limiting element ( 1 ) and the temperature-sensitive switching element ( 2 ) is produced in that the connection point ( 7 ) of the voltage-limiting element forms the first connection ( 8 ) of the temperature-sensitive switching element,
that the second connection of the temperature-sensitive switching element is formed from an electrically conductive spring ( 2 , 22 ),
that the current connection between the first and the second connection is made by a solder drop ( 10 ), the melting temperature of the solder drop corresponding to the predetermined temperature for triggering the current inhibition,
and that the spring ( 2 ) has a tensioning force ( 22 ) which subtracts the solder drop-side part of the second connection of the temperature-sensitive switching element from the connection point of the voltage-limiting element ( 5 , 7 , 8 ) when the solder drop has reached its melting temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1996115643 DE19615643A1 (en) | 1996-04-21 | 1996-04-21 | Arrangement for protecting voltage-limited electronic modules against over-heating and over-voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1996115643 DE19615643A1 (en) | 1996-04-21 | 1996-04-21 | Arrangement for protecting voltage-limited electronic modules against over-heating and over-voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19615643A1 true DE19615643A1 (en) | 1997-10-23 |
Family
ID=7791854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1996115643 Withdrawn DE19615643A1 (en) | 1996-04-21 | 1996-04-21 | Arrangement for protecting voltage-limited electronic modules against over-heating and over-voltage |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19615643A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19752781A1 (en) * | 1997-11-28 | 1999-06-02 | Wabco Gmbh | Circuit arrangement for protecting an electrical component from an electrical potential |
| EP1098418A3 (en) * | 1999-11-03 | 2002-12-11 | ABB Schweiz AG | Surge arrester for low voltage network |
| WO2008116685A1 (en) * | 2007-03-26 | 2008-10-02 | Robert Bosch Gmbh | Thermal fuse |
| DE112004000913B4 (en) * | 2003-06-04 | 2009-10-15 | Bel Fuse Inc. | Telecom circuit protection device |
| WO2013017682A1 (en) * | 2011-08-03 | 2013-02-07 | Phoenix Contact Gmbh & Co. Kg | Thermal overload protection apparatus |
| DE102017131432B3 (en) | 2017-10-12 | 2018-12-06 | Dehn + Söhne Gmbh + Co. Kg | Arrangement for the thermal monitoring of electronic components located on a wiring carrier |
-
1996
- 1996-04-21 DE DE1996115643 patent/DE19615643A1/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19752781A1 (en) * | 1997-11-28 | 1999-06-02 | Wabco Gmbh | Circuit arrangement for protecting an electrical component from an electrical potential |
| EP1098418A3 (en) * | 1999-11-03 | 2002-12-11 | ABB Schweiz AG | Surge arrester for low voltage network |
| DE112004000913B4 (en) * | 2003-06-04 | 2009-10-15 | Bel Fuse Inc. | Telecom circuit protection device |
| WO2008116685A1 (en) * | 2007-03-26 | 2008-10-02 | Robert Bosch Gmbh | Thermal fuse |
| CN101647081B (en) * | 2007-03-26 | 2013-06-19 | 罗伯特.博世有限公司 | thermal fuse |
| US8633795B2 (en) | 2007-03-26 | 2014-01-21 | Robert Bosch Gmbh | Thermal fuse |
| WO2013017682A1 (en) * | 2011-08-03 | 2013-02-07 | Phoenix Contact Gmbh & Co. Kg | Thermal overload protection apparatus |
| CN103733293A (en) * | 2011-08-03 | 2014-04-16 | 菲尼克斯电气公司 | Thermal overload protection apparatus |
| CN103733293B (en) * | 2011-08-03 | 2015-12-23 | 菲尼克斯电气公司 | thermal overload protection device |
| DE102017131432B3 (en) | 2017-10-12 | 2018-12-06 | Dehn + Söhne Gmbh + Co. Kg | Arrangement for the thermal monitoring of electronic components located on a wiring carrier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE60031598T2 (en) | Overcurrent protection device | |
| EP0129035B1 (en) | Varistor fuse element | |
| EP1117107B1 (en) | Surge Voltage Arrester | |
| EP2984715B1 (en) | Arrangement for overload protection for overvoltage protection equipment | |
| DE19639279C2 (en) | Converter circuit | |
| DE3231143C2 (en) | Reverse polarity and overvoltage protection circuit for electronic consumers | |
| DE102012004678A1 (en) | Surge protection device | |
| DE4330381A1 (en) | Protection circuit for a circuit with a capacitor circuit | |
| DE3146303C2 (en) | Arrangement for protecting a voltage-limiting circuit arrangement from overheating due to overvoltage | |
| DE19623541A1 (en) | Process for protecting a network or a system against overvoltages and voltage limiting circuit | |
| DE2748567C2 (en) | Power semiconductor component | |
| US5247273A (en) | Surge absorber for protection of communication equipment connected to communication lines | |
| DE2917256C2 (en) | ||
| DE19615643A1 (en) | Arrangement for protecting voltage-limited electronic modules against over-heating and over-voltage | |
| DE69215442T2 (en) | Surge protection device and system | |
| DE9010246U1 (en) | Surge protection device | |
| EP2151026B1 (en) | Short-circuiting device for surge arresters | |
| DE3884003T2 (en) | Encapsulated semiconductor surge protection device. | |
| DE102018129679B4 (en) | Surge protection device with thermal overload protection device | |
| EP1920448A2 (en) | Device comprising at least one double-layer capacitor | |
| DE2431167A1 (en) | Monitor for overload protection circuit - has comparator comparing resistor and capacitor volts in two RC timing circuits to return supply | |
| DE1538376B2 (en) | CIRCUIT ARRANGEMENT FOR THE PROTECTION OF A CONSUMER | |
| DE19957423B4 (en) | Device for the protection of electrical consumers | |
| DE202018101334U1 (en) | Overvoltage protection order | |
| WO2001061718A1 (en) | Semiconductor power component comprising a safety fuse |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |