EP1467150A2 - Zündsicherung - Google Patents
Zündsicherung Download PDFInfo
- Publication number
- EP1467150A2 EP1467150A2 EP04008590A EP04008590A EP1467150A2 EP 1467150 A2 EP1467150 A2 EP 1467150A2 EP 04008590 A EP04008590 A EP 04008590A EP 04008590 A EP04008590 A EP 04008590A EP 1467150 A2 EP1467150 A2 EP 1467150A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pin
- contact
- solenoid valve
- button
- valve
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q9/00—Pilot flame igniters
- F23Q9/08—Pilot flame igniters with interlock with main fuel supply
- F23Q9/12—Pilot flame igniters with interlock with main fuel supply to permit the supply to the main burner in dependence upon existence of pilot flame
- F23Q9/14—Pilot flame igniters with interlock with main fuel supply to permit the supply to the main burner in dependence upon existence of pilot flame using electric means, e.g. by light-sensitive elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
- F23N5/105—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples using electrical or electromechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
- F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2231/00—Fail safe
- F23N2231/12—Fail safe for ignition failures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/24—Valve details
Definitions
- thermoelectric ignition fuse with a valve housing and a push-button, which has a pin on a solenoid valve of a solenoid valve insert acts, with the solenoid valve in operative connection with an armature is in the pressed state of the button in contact with an electromagnet stands, and wherein the ignition fuse comprises an electric ignition device, the with at least one ground contact electrically conductive with the valve housing connected is.
- thermoelectric ignition fuses ensure that when gas-powered Burners of the main gas flow is released only when a pilot light safe ignited.
- an anchor For about 10 s, using a push-button, an anchor must be used against a pin a spring force is pressed on an electromagnet.
- This is a Solenoid valve open, which clears the way for a pilot gas while the path is closed by a further valve for a main gas flow. simultaneously a circuit is closed, which causes a spark band, with which the ignition gas of the pilot flame is ignited on a pilot burner.
- thermocouple The pilot flame heats a thermocouple.
- the thermocouple is with the Electromagnet of the solenoid valve connected.
- the thermo-current causes the Excitation of the electromagnet, whereby an anchor is held.
- the Electromagnet can be designed as U-magnet, the anchor as an anchor plate.
- the solenoid valve After releasing the button, the solenoid valve remains open. Continue the second valve for the main gas flow opened, which is located in the burner at the Ignited pilot flame.
- a contact plate mounted on the pin is pressed against a contact spring connected to the electric ignition device. It thus forms a current path, starting from the electric ignition device via the contact spring, the contact plate, the pin, the guide bush of the pin and connected to the ground terminal of the electrical ignition valve housing.
- the contact between the contact spring and the contact plate is about 1 to 3 mm, before the armature bears against the electromagnet, is closed.
- thermoelectric Zündsch This requirement has for the error-free operation of the thermoelectric Zünd rejoin devis proved to be disadvantageous.
- the Contact spring touches the ignition is audible with the audible and for the operator visible spark band started. Furthermore, the contact spring causes a Force increase for the keystroke. This combination is used by the operators of the Device often interpreted for the end of the keyway. The anchor is thus not pressed against the electromagnet and remains at a distance of about 1 up to 3 mm away from it. After releasing the button, it is therefore despite burning pilot flame is not held by the solenoid and the solenoid valve closes again, causing the ignition flame goes out and the burner is not is ignited. This operating error leads to complaints.
- thermoelectric ignition fuse of the beginning to create mentioned type in which this operating error is reliably avoided.
- the problem is solved by pressing the button while pressing a current path of the ground contact of the electric ignition device starting over the Valve body, the solenoid valve insert and the pin is formed, wherein the pin is electrically connected to the second pole of the electrical ignition device. This ensures that the circuit path is not closed until when the button is fully pressed. Furthermore, the user feels a solid Stop and the sparking tape is only effected when the button is pressed completely. There is no premature increase in force due to the contact spring on the user the end of the operation simulates.
- a preferred variant of the invention provides that an electrical contact to the Closing the current path of the electric ignition device between the Electromagnet and the armature of the solenoid valve insert is formed. Thereby is achieved that when closing the contact of the electric ignition device the armature bears against the electromagnet and thus after ignition of the Zündbrenners the anchor is held securely by the electromagnet and the Solenoid valve remains open.
- the electrical connection between the pin and the second pole of the electric ignition permanently on the contact plate connected. This is preferably done with a cable connection. This one has the Advantage that the entire arrangement ensures the function without tolerances and a Adjustment of the contact spring is eliminated.
- a special construction provides that in the not depressed state of the Tasters and after ignition of the circuit path between the pin and the Solenoid valve is interrupted. This has the advantage that when you release the Buttons the contact is opened, the spark plug goes out and the ignition fuse in Function occurs.
- the pin is opposite the valve housing electrically insulated. This ensures that the circuit path only is closed when the button is pressed to its end position.
- a good insulation of the pin to the valve body is achieved in that the Spring plate and / or the socket of the pin guide and / or the socket of the valve and / or the pin guide and / or the valve made of electrically insulating material, preferably made of plastic, are formed.
- a preferred variant of the invention provides that the input resistance of the electrical ignition device is designed high impedance. This may be necessary as a sufficient holding force of the magnetic insert is only achieved if the Surfaces of the electromagnet and the armature are very smooth. These smooth Surfaces are unfavorable for electrical contact, as the Contact resistance can be high. With this variant of the invention is ensured that the resistance of the current path while pressing the button is always small compared to the input resistance of the electrical ignition device and thereby the voltage drop at the contact point is low.
- FIG. 1 shows a thermoelectric ignition fuse 1, as is known from the prior art Technique is known, shown in section and partly schematic representation.
- the ignition fuse 1 consists of a valve housing 80 which has a gas inlet 81, a gas outlet 82 and a gas outlet 83. Of the Gas outlet 82 is via a line with a pilot burner 120 a Gas heating device connected. The gas outlet 83 is provided with a burner 110 the gas heating device, for example a gas-fired hot water connected. Furthermore, the ignition fuse 1 an electric ignition device 10th on, via a ground contact 12 conductively connected to the valve housing 80 is.
- the ignition device 10 has a voltage source 13, for example a battery and a not detailed here ignition electronics, the Zündbrenner 120 generates a spark band when the ignition device 10th is activated.
- the ignition fuse 1 has a button 20, which is connected to a pin 30.
- the pin 30 is in the valve housing 80 by means a pin guide 40 out.
- a contact plate 70 which is conductively connected to the pin 30.
- the contact plate 70 closes upon actuation of the probe 20 makes electrical contact with a contact spring 11, which is connected to the second pole of the electrical ignition device 10.
- the contact plate 70 is by means of a spring 60 which is opposite to a valve 100 supports, and presses on a mounted on the pin 30 spring plate 50, in held his position.
- the valve housing 80 has at the lower end a receptacle 84 for a Solenoid valve insert 90.
- This consists of a magnetic insert 93, in turn consists of an electromagnet 95 and an armature 94, which has a rigid Connection is in operative connection with a solenoid valve 91, which in Hibernation seals a passage 85 in the valve housing 80 from below.
- the Solenoid valve 91 is supported by a spring 92 from the housing of the magnetic insert 93 off.
- the solenoid 95 has a coil, not shown here, the with a thermocouple 150, which is located on the pilot burner 120, electrically connected is.
- the button 20 When the ignition fuse 1 is put into operation, the button 20 must be pressed for approx. 10 seconds be pressed.
- the pin 30 presses on the solenoid valve 91, which over the rigid connection presses the armature 94 to the solenoid 95.
- the valve 100 seals the passage 85 from above, so that initially no gas can pass through the gas outlet 83 to the burner 110.
- the contact between the contact spring 11 of the electric Ignition device 10 and the contact plate 70 is closed, so that a Stromlaufpfad 130 via the contact spring 11, the contact plate 70, the pin 30, the Pin guide 40, the valve housing 80 and the ground contact 12 to Voltage source 13 of the electrical ignition device 10 is formed.
- This will generates a spark band on the pilot burner 120 via the ignition device 10, which ignites a pilot flame.
- the pilot flame heats the Thermocouple 150, which generates a thermal current, which in turn Electromagnet 95 generates a magnetic force that attracts the armature 94.
- the solenoid valve 91 Upon release of the button 20 remains after ignition of the pilot burner 120th the solenoid valve 91 is opened.
- the button 20 goes together with the contact plate 70, by the spring force of the spring 60 back to the starting position and interrupts doing the contact between the contact plate 70 and the contact spring 11th At the same time, the valve 100 opens the passage 85 and thus gives the gas flow through the gas outlet 83 to the burner 110 free.
- FIG. 2 shows an ignition fuse 1 in an inventive design.
- button 20 is a circuit path 130 from the ground contact 12 of the electrical Ignition device 10, starting via the valve housing 80, the solenoid valve insert 90 and the pin 30 is formed.
- the pin 30 is permanently electric - im shown embodiment by means of a cable connection 140 - between the Contact plate 70, which is conductively mounted on the pin 30, and the second pole of the electrical ignition device 10 is connected.
- the pin 30 is in this arrangement with respect to the valve housing 80 electrically isolated.
- the spring plate 50 is made of an electrically insulating Material, for example made of plastic, formed. An electrical contact via the spring 60 to the valve housing 80 is thereby prevented.
- the Guide the pin 30 serving pin guide 40 a socket 41, which also is formed of an insulating material, preferably of plastic.
- the valve 100 also has a bush 101 in the embodiment shown, which isolates the pin 30 from the valve housing 80.
- the electrical Ignition 10 is designed high impedance, which is particularly necessary can be, if to achieve a higher holding power the surfaces of Electromagnet 95 and the anchor 94 very smooth, for example, lapped are formed and thereby possibly greater contact resistance result. This ensures that the resistance of the current path 130 at pressed button 20 always small compared to the input resistance of the electric ignition device 10 is.
- electromagnet 95 and the armature 94 have special contact surfaces, for example in the form of very good conductive Metal surfaces and / or in the form of rough surfaces that touch one result in very low-resistance electrical contact.
- the ignition fuse 1 is achieved that the contact point to close the current path 130 spatially from the contact point to open of the current path 130 is disconnected.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
- Control Of Combustion (AREA)
- Magnetically Actuated Valves (AREA)
- Fuses (AREA)
Abstract
Description
Bei dieser Anordnung muss aus Toleranzgründen sichergestellt sein, dass der Kontakt zwischen der Kontaktfeder und dem Kontaktblech circa 1 bis 3 mm, bevor der Anker an dem Elektromagneten anliegt, geschlossen wird.
- Fig. 1
- eine Zündsicherung mit Magneteinsatz gemäß dem Stand der Technik
- Fig. 2
- eine Zündsicherung mit Magneteinsatz in der erfinderischen Ausgestaltung
Claims (9)
- Thermoelektrische Zündsicherung (1) mit einem Ventilgehäuse (80) und einem Taster (20), der über einen Stift (30) auf ein Magnetventil (91) eines Magnetventileinsatzes (90) wirkt, wobei das Magnetventil (91) in Wirkverbindung mit einem Anker (94) steht, die im gedrückten Zustand des Tasters (20) im Kontakt mit einem Elektromagneten (95) steht, und wobei die Zündsicherung (1) eine elektrische Zündeinrichtung (10) aufweist, die mit mindestens einem Massekontakt (12) elektrisch leitend mit dem Ventilgehäuse (80) verbunden ist,
dadurch gekennzeichnet, dass bei gedrücktem Taster (20) ein Stromlaufpfad (130) von dem Massekontakt (12) der elektrischen Zündeinrichtung (10) ausgehend über das Ventilgehäuse (80), den Magnetventileinsatz (90) und den Stift (30) gebildet ist, wobei der Stift (30) elektrisch mit dem zweiten Pol der elektrischen Zündeinrichtung (10) verbunden ist. - Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass ein elektrischer Kontakt zum Schließen eines Stromlaufpfades (130) der elektrischen Zündeinrichtung (10) zwischen dem Elektromagneten (95) und dem Anker (94) des Magnetventileinsatzes (90) ausgebildet ist. - Vorrichtung nach einem der Ansprüche 1 oder 2,
dadurch gekennzeichnet, dass die elektrische Verbindung zwischen dem Stift (30) und dem zweiten Pol der elektrischen Zündeinrichtung (10) dauerhaft über ein Kontaktblech (70) verbunden ist, vorzugsweise mit einer Kabelverbindung (140). - Vorrichtung nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass der Stift (30) im gedrückten Zustand elektrisch leitfähig über das Magnetventil (91) mit dem Anker (94) in Kontakt steht. - Vorrichtung nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass im nicht gedrückten Zustand des Tasters (20) und nach erfolgter Zündung der Stromlaufpfad (130) zwischen dem Stift (30) und dem Magnetventil (91) unterbrochen ist. - Vorrichtung nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass der Stift (30) gegenüber dem Ventilgehäuse (80) elektrisch isoliert geführt ist. - Vorrichtung nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass ein Federteller (50) aus einem elektrisch isolierenden Werkstoff, vorzugsweise aus Kunststoff, ausgebildet ist. - Vorrichtung nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass eine Buchse (41) einer Stiftführung (40) und/oder eine Buchse (101) eines Ventils (100) und/oder die Stiftführung (40) und/oder das Ventil (100) aus elektrisch isolierendem Werkstoff, vorzugsweise aus Kunststoff, ausgebildet sind. - Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass der Eingangswiderstand der elektrischen Zündeinrichtung (10) hochohmig ausgelegt ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10316642 | 2003-04-11 | ||
DE10316642A DE10316642B4 (de) | 2003-04-11 | 2003-04-11 | Zündsicherung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1467150A2 true EP1467150A2 (de) | 2004-10-13 |
EP1467150A3 EP1467150A3 (de) | 2011-01-26 |
EP1467150B1 EP1467150B1 (de) | 2012-12-26 |
Family
ID=32864442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04008590A Expired - Lifetime EP1467150B1 (de) | 2003-04-11 | 2004-04-08 | Zündsicherung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1467150B1 (de) |
DE (1) | DE10316642B4 (de) |
ES (1) | ES2402093T3 (de) |
PT (1) | PT1467150E (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT508263B1 (de) | 2009-11-09 | 2010-12-15 | Anstoss Regelgeraete Ges M B H | Ventilvorrichtung sowie verfahren zur thermoelektrischen zündsicherung für gasbetriebene geräte |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2290048A (en) * | 1938-12-12 | 1942-07-14 | Milwaukee Gas Specialty Co | Safety device for heating and other apparatus |
FR68517E (fr) * | 1955-08-29 | 1958-05-02 | Bosch Gmbh Robert | Appareil à gaz, en particulier fourneau à gaz à allumeur magnétique |
DE1256176B (de) * | 1965-09-18 | 1967-12-14 | Vaillant Joh Kg | Thermoelektrische Zuendsicherung, insbesondere fuer Umlauf-Gaswassererhitzer |
CH456826A (de) * | 1966-12-03 | 1968-05-31 | Beteiligungs & Patentverw Gmbh | Zündeinrichtung für Gasbrenner |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT301119B (de) * | 1970-01-28 | 1972-08-25 | Vaillant Joh Kg | Thermoelektrische Zündsicherung, insbesondere für Umlauf-Gaswassererhitzer |
-
2003
- 2003-04-11 DE DE10316642A patent/DE10316642B4/de not_active Expired - Fee Related
-
2004
- 2004-04-08 EP EP04008590A patent/EP1467150B1/de not_active Expired - Lifetime
- 2004-04-08 PT PT40085904T patent/PT1467150E/pt unknown
- 2004-04-08 ES ES04008590T patent/ES2402093T3/es not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2290048A (en) * | 1938-12-12 | 1942-07-14 | Milwaukee Gas Specialty Co | Safety device for heating and other apparatus |
FR68517E (fr) * | 1955-08-29 | 1958-05-02 | Bosch Gmbh Robert | Appareil à gaz, en particulier fourneau à gaz à allumeur magnétique |
DE1256176B (de) * | 1965-09-18 | 1967-12-14 | Vaillant Joh Kg | Thermoelektrische Zuendsicherung, insbesondere fuer Umlauf-Gaswassererhitzer |
CH456826A (de) * | 1966-12-03 | 1968-05-31 | Beteiligungs & Patentverw Gmbh | Zündeinrichtung für Gasbrenner |
Also Published As
Publication number | Publication date |
---|---|
DE10316642B4 (de) | 2005-03-31 |
EP1467150B1 (de) | 2012-12-26 |
EP1467150A3 (de) | 2011-01-26 |
ES2402093T3 (es) | 2013-04-26 |
DE10316642A1 (de) | 2004-11-11 |
PT1467150E (pt) | 2013-02-11 |
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