DE2125116A1 - Safety switch - for choking coils of phosphorescent lamps - Google Patents
Safety switch - for choking coils of phosphorescent lampsInfo
- Publication number
- DE2125116A1 DE2125116A1 DE19712125116 DE2125116A DE2125116A1 DE 2125116 A1 DE2125116 A1 DE 2125116A1 DE 19712125116 DE19712125116 DE 19712125116 DE 2125116 A DE2125116 A DE 2125116A DE 2125116 A1 DE2125116 A1 DE 2125116A1
- Authority
- DE
- Germany
- Prior art keywords
- solder
- melting temperature
- melting
- protection switch
- heat protection
- 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.)
- Pending
Links
Classifications
-
- 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
- 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
-
- 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
- H01H2037/768—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material characterised by the composition of the fusible material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Thermally Actuated Switches (AREA)
Abstract
Description
Wärmeschutzschalter für Drosselspulen von Leuchtstofflampen Die Erfindung hat einen Wärmeschutzschalter für Drossel spulen von Leuchtstofflampen zum Gegenstand.Thermal circuit breaker for choke coils of fluorescent lamps The invention has a thermal circuit breaker for the choke coils of fluorescent lamps.
Windungsschlüsse in Drosselspulen von Leuchtstofflampen, die z.B. durch thermische oder elektrische Überlastung oder durch alterung der Lackdrahtiscolation verursacht sind, führen zu überhöhter Temperatur der Spulen die zu Bränden Anlaß geben kann.Shorted turns in choke coils of fluorescent lamps, e.g. due to thermal or electrical overload or due to aging of the enamelled wire insulation cause the coils to overheat, which can lead to fires can give.
Nan ist daher dazu übergegangen, in den Stromkreis der Drosselspulen Wärmeschutzschalter einzuschalten, welche die Drosselspulen beim Erreichen einer bestimmten Temperatur abschalten und die Entstehung von Bränden dadurch verhindern.Nan has therefore moved on to the circuit of the inductors Switch on thermal circuit breaker, which activates the choke coils when reaching a switch off at a certain temperature and thereby prevent fires.
Ein derartiger besonders einfacher Wärmeschutzschalter besteht gemäß der Erfindung aus zwei in einem Ilalter befestigten federnden Drähten, die in den Stromkreis einer Drosselspule eingeschaltet und an ihren freien Enden zusammengebogen, durch ein niedrigschmelzen des Lot miteinander verlötet und in den aus der Halter herausragenden Bereich mit einer schmelzbaren Spritzmasse unspritzt sind, deren Schmelztemperatur niedriger ist als die Schmelztemperatur des die Drahtenden zusainmenhaltendes Lots.Such a particularly simple thermal circuit breaker exists according to of the invention of two resilient wires fastened in an Ilalter, which in the Circuit of a choke coil switched on and bent at its free ends, soldered together by a low melting of the solder and into the out of the holder outstanding area with a fusible injection compound are unsprayed, whose Melting temperature is lower than the melting temperature of the wire ends holding together Lots.
Ein ausführungsbeispiel eines erfindungsgemäßen Abschalters ist in der Zeichnung in vergrößertem Maßstab dargestellt. Es zeigt: Fig. 1 einen Abschalter in der Ansicht von vorne, Fig 2 in-der Ansicht von der Seite und Fig. 3 in perspektivischer Darstellung.An exemplary embodiment of a switch according to the invention is shown in the drawing shown on an enlarged scale. It shows: Fig. 1 a switch in the view from the front, FIG. 2 in the view from the side and FIG. 3 in perspective Depiction.
Der neue Schalter besteht aus einem aus einer Phenolharz-Preßmasse gespritzten Ilalter 10 für zwei isolierte federnde Drähte 11; und 12, die an ihren aus dem Ilalter herausragenden, sbisolierten Enden zusammengebogen und durch ein bei 145°C schmelzendes Lot 13 (50 % Sn, 30 % Fb, 20 % Cd) zusammengelötet sind.The new switch consists of a phenolic resin molding compound injection-molded Ilalter 10 for two insulated resilient wires 11; and 12 attached to theirs Stripped ends protruding from the Ilalter bent together and through a at 145 ° C melting solder 13 (50% Sn, 30% Fb, 20% Cd) are soldered together.
Die aus dem Halter 10 herausragenden Drähte mit der Lötstelle 13 sind mit einer hülle 14 aus Oxyhydrochinon mit einer Schmelztemperatur von 141°C umspritzt. Das Oxyhydrochinon schmilzt also schon bei einer um wenige Grade niedrigeren Temperatur als das Let 13, es beeinträchtigt daher die hnsprechtemperatur der Sicherung nicht.The wires protruding from the holder 10 are connected to the solder joint 13 encapsulated with a shell 14 made of oxyhydroquinone with a melting temperature of 141 ° C. The oxyhydroquinone therefore melts at a temperature a few degrees lower than Let 13, it therefore affects the speaking temperature of the Backup not.
Das Oxyhydrochinon hat insbesondere die auf Zug beansprchten Drähte und die Lötstelle zu entlasten und dadurch ein vorzeiteges etwa durch Lötstellenalterung verursachtes Ansprechen der Sicherung zu verhindern. Es dient ferner zur Isolierung und zum Schntz des Abschalters vor mechanischen Beschädigungen.The oxyhydroquinone in particular has the wires that are subjected to tensile stress and to relieve the solder joint and thereby premature aging, for example prevent the fuse from responding. It is also used for insulation and to protect the switch from mechanical damage.
Form und Volumen des Oxyhydrochinons sind so bemessen, daß die Bewegungsfreiheit der Drähte beim Schmelzen des Lots 13 nicht becinträchtigt ist.The shape and volume of the oxyhydroquinone are dimensioned to allow freedom of movement of the wires is not impaired when the solder 13 is melted.
Für höhere Abschalttemperaturen sind andere Lotlegierungen und Spritzmassen zu wählen. Für eine Abschalttemperatur von 160°C empliehlot sich z.B. eine Legierung aus 70% Sn, 30 % Cd und Zn mit einer Schmelztemperatur von 160°C und die Verwendung von Thiantren als die Lötstelle entlastende Spritzmasse, die bei 159°C schmilzt.Other solder alloys and gunning mixes are used for higher shutdown temperatures to choose. For example, an alloy is recommended for a switch-off temperature of 160 ° C from 70% Sn, 30% Cd and Zn with a melting temperature of 160 ° C and the use of thiantren as an injection compound that relieves the load on the solder joint and melts at 159 ° C.
Eine weitere Legierung für das niedrigschmelzende Lot aus 32,5 % Cd und 67,5 96 Sn hat ei eine Scmelztemperatur von 17600. Als Spritzmasse für den Schutz der Lötstelle kommt in diesem Fall Hydrochinon mit eines Schmelztemperatur von 170,3°C in Frage.Another alloy for the low-melting solder made of 32.5% Cd and 67.5 96 Sn has a melting temperature of 17,600. As a spray compound for protection In this case, the soldering point is hydroquinone with a melting temperature of 170.3 ° C in question.
Der Einbau derartiger Wärmeschutzschalter ist darauf zu achten, daß ein guter Wärmekontakt zwischen Schalter und Drosselspule besteht. Dies ist z.b. dann der Fall, wenn der Abschalter zwischen Eisenkern und Spulenkörper eingebaut ist. Bei nachträglichem Einbau kann der Abschalter am Drosselspulengehäuse befestigt werden.The installation of such thermal circuit breakers must ensure that there is good thermal contact between the switch and the inductor. This is e.g. this is the case when the switch is installed between the iron core and the coil body is. If it is retrofitted, the switch can be attached to the reactor housing will.
ca Wichtige Vorteile des neuen Abschalters sind sein geringer Durchgangswiderstand, sein kleines Volumen, geringe Herstellungakosten und lange Lebensdauer.approx Important advantages of the new breaker are its low volume resistance, its small volume, low manufacturing cost and long life.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712125116 DE2125116A1 (en) | 1971-05-21 | 1971-05-21 | Safety switch - for choking coils of phosphorescent lamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712125116 DE2125116A1 (en) | 1971-05-21 | 1971-05-21 | Safety switch - for choking coils of phosphorescent lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2125116A1 true DE2125116A1 (en) | 1972-11-30 |
Family
ID=5808454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19712125116 Pending DE2125116A1 (en) | 1971-05-21 | 1971-05-21 | Safety switch - for choking coils of phosphorescent lamps |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2125116A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2336783A1 (en) * | 1975-12-22 | 1977-07-22 | Illinois Tool Works | THERMAL CIRCUIT BREAKER AND ITS MANUFACTURING PROCESS |
EP0064824A2 (en) * | 1981-04-28 | 1982-11-17 | Tasuku Okazaki | Thermal fuse |
DE3740175A1 (en) * | 1987-11-26 | 1989-06-08 | Bosch Siemens Hausgeraete | Electrically heatable, water-carrying domestic appliance |
AT405580B (en) * | 1995-12-01 | 1999-09-27 | Hauser Hans Dr | Foil coil for producing strong (pulsed) magnetic fields |
WO2002033721A1 (en) * | 2000-10-21 | 2002-04-25 | Robert Bosch Gmbh | Overload protector for electrical motors |
DE102007021426A1 (en) * | 2007-05-03 | 2008-06-19 | Afl Europe Gmbh | Thermal protection for electrical circuits, comprises contact carrier, contact element with contact lug, supported on contact carrier and another contact element with another contact lug, which is supported on contact carrier |
-
1971
- 1971-05-21 DE DE19712125116 patent/DE2125116A1/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2336783A1 (en) * | 1975-12-22 | 1977-07-22 | Illinois Tool Works | THERMAL CIRCUIT BREAKER AND ITS MANUFACTURING PROCESS |
EP0064824A2 (en) * | 1981-04-28 | 1982-11-17 | Tasuku Okazaki | Thermal fuse |
EP0064824A3 (en) * | 1981-04-28 | 1983-06-08 | Tasuku Okazaki | Thermal fuse and the method of manufacturing the same |
DE3740175A1 (en) * | 1987-11-26 | 1989-06-08 | Bosch Siemens Hausgeraete | Electrically heatable, water-carrying domestic appliance |
AT405580B (en) * | 1995-12-01 | 1999-09-27 | Hauser Hans Dr | Foil coil for producing strong (pulsed) magnetic fields |
WO2002033721A1 (en) * | 2000-10-21 | 2002-04-25 | Robert Bosch Gmbh | Overload protector for electrical motors |
US7023674B2 (en) | 2000-10-21 | 2006-04-04 | Robert Bosch Gmbh | Overload protector for electrical motors |
KR100796710B1 (en) * | 2000-10-21 | 2008-01-21 | 로베르트 보쉬 게엠베하 | Overload protector for electrical motors |
DE102007021426A1 (en) * | 2007-05-03 | 2008-06-19 | Afl Europe Gmbh | Thermal protection for electrical circuits, comprises contact carrier, contact element with contact lug, supported on contact carrier and another contact element with another contact lug, which is supported on contact carrier |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OHJ | Non-payment of the annual fee |