DE2013663C - Electric ignition device for the burners of gas cooking appliances - Google Patents

Description

1 2

The invention relates to an electrical ignition which can be controlled. That has the advantage that over the

direction for the burners of Guskochgertiten, in particular contacts of the switch, which has the corresponding

• Special of gas heating devices, with which the ignition actuation mechanisms outside or inside

organs of the burner of at least one transformer of the gas stove can be influenced by a control element

that is in the discharge circuit of a 5, no longer the high discharge current of the condenser

Condenser lies, with a two-position reversal, but only the weak polarization

ter, which in one position has a load circuit current of the control electrode of the controlled diode

for the capacitor closes. flows, the contacts are extraordinary

In gas stoves with electric ignition, the life of the lungs must be demonstrated and not tend to

Burners, especially in gas stoves, are currently subject to welding or other wear and tear

electrical spark igniters or glow wires to be defeated.

Ignition used. To feed this device enjoy an advantageous embodiment gen are usually one or more independent of the invention then the discharge signal comes from High voltage transformers are provided which are in by the charged capacitor itself, so that Discharge circuit of a capacitor. No connection after charging the capacitor a high-voltage transformer is provided in each case with the mains voltage for ignition and viewing, when all burners have to be made to charge the capacitor to a single controller. subordinate; several independent high-voltage Further advantageous configurations and further transformers are then used when several formations of the invention can apply to the subjects Control organs are in place. Such arrangements can be found in proverbs.

For example, the German usage Ι: · η Ausführungsuiigsbeispid wild in the following iiiitci

sample 1922 014, the German Auslegeschrift reference to the drawing explained in more detail, whose

1149 126 as well as the USA. Patent 2 275S6I single figure shows the electrical circuit diagram of a

can be removed. In this known arrangement such device illustrated that on a

The control unit, which can usually be attached to the gas kitchen stove, is the control unit, in which both the

consists of a two-position switch, so eye-burner of the stove, as well as that of the hotplate

arranges that it ignites the capacitor in each case with one means of a common ignition device

- Connect the discharge circuit and a charging circuit.

det. The device shown is connected to the

sators with the holding tongue of the two-position switchover 30 terminals 1 and 2 (the latter is connected to ground)

connected, which in its one position feeds the alternating current and includes a condenser

Charging capacitor via a rectifier with the generator 3, whose charging circuit based on the

Mains voltage or another suitable terminal 1 in series connection a rectifier

Spantnmg connects, while the other diode 4, a current limiting resistor 5, two

Position of the two-position switch is a discharge 35 contacts 6 and 7, as well as the primary winding 10 one

current from the capacitor via the switch transformer 11 includes. Contacts 6 and 7

through the primary winding of an ignition transformer * are by means of the contact tongue 8 of a changeover switch 9

It means that it causes the burner to ignite. connectable to each other, which occupy two positions

The changeover switch is usually at the front of the menue and mechanically with an actuation

Geräl attached and can be connected from the one to the 41) organ (for example a push button)

other working position can be switched. which is preferably at the front of the kitchen

These known ignition devices have the hearth arranged. The two secondary windings

Disadvantage that the contacts of the switch or gene 12 and 13 of the transformer Π feed the

the switch used always from the high ignition organs of the burner of the gas stove and the

Entladestiom are traversed by the Ziiiid- 45 hotplate. The discharge circuit of the condenser

Devices for household appliances in the fraction of a gate 3, however, includes the series connection

Second peak values about up to 25 amperes reach primary winding 10 of transformer 11 and one

can. As a result, over time there is a controlled diode 14, the control electrode of which is connected to one another

Destruction or melting of the point between two resistors 15 and 16

Kontakle, so that there * control member of the device 50 is bound, in series between ground and a

becomes ineffective and the entire device is located contact 17, which is through the contact tongue 8 of the

says. Changeover switch 9 alternates with contact 6 with

The invention is based on the object that the contact 7 can be connected.

To eliminate disadvantages of the known arrangement, the contact tongue 8 is full of its during operation

and to create an ignition device in which the 55 position, shown in solid lines, changes to the dashed line

Discharge current no longer transferred via the control element drawn position, then the

must flow, although closed by actuation of this control charging circuit of the capacitor 3, so

organs the ignition process is set in action that the same is charged while in the

will. . Secondary windings of the transformer 11 flowing

To solve this problem, the invention is not capable of the 60 weak induced current

to be actuated from an ignition device of the initially shielded ignition elements (the same can be done from

of the kind and means that the discharge current - spark plugs, from a filament or from another

circuit of the capacitor in series with the transformer devices of this type exist. The controlled

mator includes a controlled diode (thyristor), diode 14 is now through the zero potential

whose control electrode is blocked with a polarization current 65 of its control electrode,

circle is connected, your when the charging current is open- If the movable contact tongue 8 then

circle of the capacitor over the position drawn in its second in the shown fully drawn position

If the changeover switch in the position returns a discharge signal, then the charging circuit of the

Capacitor 3 interrupted and at the same time the capacitor in series with the two resistors 15 and 16 switched. The potential of the control electrode the gosteuorten diode 14 then rises to Threshold value of the diode, so that it becomes conductive and the capacitor discharges freely through it can.

The high discharge current generates correspondingly high induced currents in the secondary windings 12 and 13 of the I runsformators U ₁ through which the Zlindorgano are made effective, whereby the ignition of the Urenner (of course only those whose Gus supply was opened) is made possible.

The diagram shown and described relates to a device for electrical ignition the burner of a kitchen stove with joint control for the burners of the stove and jeno the hotplate. By simply doubling the Circuit shown IUlH adapt the device for use in such Gusherden, at ao which the ignition of the burner mentioned takes place separately.

Claims (4)

Patent claims: I. Electric ignition device for the burners of gas cookers, especially gas cookers, in which the Zündorganc the burner is fed by at least one transformer , which is in the discharge circuit of a capacitor, with a Zwcistelliingsumschalter, which in one position closes a charging circuit for the capacitor, characterized in that duss the discharge circuit of the capacitor (3) in series with the transformer (II) comprises a controlled diode (thyristor 14), whose control electrode is connected to a polarization circuit, which when the Charging circuit of the capacitor (3) via the changeover switch in its second position (9) a discharge signal can be supplied. 2. Ignition device according to claim I, characterized in that the discharge signal is dem Capacitor (3) itself is removed. 3. Ignition device according to claim I and / or 2, characterized in that the polarization circuit consists of two resistances (15,16) connected in series, dereji junction is connected to the control electrode and its other connections on the one hand the transformer (M) with one connection of the capacitor * (3) and on the other hand via the Changeover switch (9) are connected to the other terminal of the capacitor. 4. Ignition device according to one or more of claims I to 3, characterized gekennnzeichnct, that the charging circuit for the capacitor (3) from the primary winding of the transformer (11) as well as a diode (4) connected in series with a resistor (5) and the changeover switch (9) consists. Here 1 sheet of drawings