DE4007148A1 - VOLUME-OPTIMIZED VIBRATION THROTTLE FOR HIGH CONTROL AND HIGH GOETE - Google Patents
VOLUME-OPTIMIZED VIBRATION THROTTLE FOR HIGH CONTROL AND HIGH GOETEInfo
- Publication number
- DE4007148A1 DE4007148A1 DE4007148A DE4007148A DE4007148A1 DE 4007148 A1 DE4007148 A1 DE 4007148A1 DE 4007148 A DE4007148 A DE 4007148A DE 4007148 A DE4007148 A DE 4007148A DE 4007148 A1 DE4007148 A1 DE 4007148A1
- Authority
- DE
- Germany
- Prior art keywords
- vibrating
- ferrite
- choke according
- choke
- volume
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F37/00—Fixed inductances not covered by group H01F17/00
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Coils Or Transformers For Communication (AREA)
Description
Metalldampfhochdrucklampen benötigen zum Zünden des Lichtbogens eine hohe Spannung, die etwa das 200fache oder mehr der Brenn spannung betragen kann. Diese Zündspannung wird allgemein mit Hochfrequenz durch einen Serienresonanzkreis erzeugt, wobei der Schwingkreiskondensator parallel zur MHD-Lampe geschaltet ist. Im Resonanzfall liegt an diesem Kondensator die benötigte Zünd spannung. Die Resonanzbedingung erfordert, daß die Drossel eine hohe Güte aufweist, um die Zündspannung sicher zu erreichen.High pressure metal vapor lamps need to ignite the arc a high voltage that is about 200 times or more the burning voltage can be. This ignition voltage is generally associated with Radio frequency generated by a series resonance circuit, the Resonant circuit capacitor is connected in parallel to the MHD lamp. In the event of resonance, the required ignition is due to this capacitor tension. The resonance condition requires that the choke be a has high quality in order to safely reach the ignition voltage.
Da aber diese Drossel im Normalbetrieb auch den Brennstrom be grenzt, muß sie bei der lampenbedingten, niedrigen Frequenz eine hohe Induktivität haben.But since this choke also be the combustion current in normal operation limits, it must be one at the lamp-related, low frequency have high inductance.
Diese beiden, sehr unterschiedlichen Betriebsarten:These two very different operating modes:
- a) hoher Blindstrom bei der Zündresonanzfrequenz ohne Sättigungs erscheinungen;a) high reactive current at the ignition resonance frequency without saturation appearances;
- b) große Induktivität für den Betrieb mit der Brennfrequenz bei gleichzeitig hoher Güte, um die Leistungsverluste in der Drossel klein zu halten,b) Great inductance for operation with the burning frequency high quality at the same time to reduce the power losses in the choke to keep small
führten zur erfindungsgemäßen Ausgestaltung der Schwingdrossel, die im folgenden beschrieben wird: led to the design of the oscillating throttle according to the invention, which is described below:
Fig. 1 zeigt den Aufbau einer herkömmlichen Spule. Um eine Sätti gung während des Zündvorgangs zu vermeiden, ist ein sehr großer Luftspalt innerhalb der Wicklung vorgesehen. Die Fläche beim Übergang der magnetischen Feldlinien von der Luft in das Ferrit ist so gewählt, daß die zulässige maximale Induktion des verwen deten Ferrits nicht überschritten wird. Diese Begrenzung der In duktion ist für die Luftstrecke nicht erforderlich. Aus diesem Grunde kann die magnetisch wirksame Fläche in der Luftstrecke stark verringert werden (Fig. 2). Fig. 1 shows the structure of a conventional coil. In order to avoid saturation during the ignition process, a very large air gap is provided within the winding. The area at the transition of the magnetic field lines from the air into the ferrite is selected so that the permissible maximum induction of the ferrite used is not exceeded. This limitation of the induction is not necessary for the air gap. For this reason, the magnetically effective area in the air gap can be greatly reduced ( Fig. 2).
Gegenüber einer Wicklung mit konstantem Querschnitt ergeben sich folgende Vorteile:Compared to a winding with a constant cross-section following advantages:
- 1. Eine Erhöhung der Windungszahl bei vorgegebener Drahtlänge. Hierdurch steigt die Güte erheblich, da bei gleichem ohmschem Widerstand die Induktivität stark zunimmt.1. An increase in the number of turns for a given wire length. As a result, the quality increases considerably since the same ohmic Resistance the inductance increases sharply.
- 2. Durch den größeren Wickelraum kann der Drahtquerschnitt ver größert werden, wodurch noch einmal die Güte verbessert wird.2. Due to the larger winding space, the wire cross section can ver be enlarged, which once again improves the quality.
- 3. Bei vorgegebener Güte kann der Kernquerschnitt verkleinert werden, da durch die beschriebene Querschnittsverringerung im Luftbereich eine größere Scherung ermöglicht wird.3. If the quality is specified, the core cross section can be reduced be because of the described cross-sectional reduction in Air range a greater shear is enabled.
Fig. 3 zeigt eine Ausführung, bei der die Scherung so vergrößert ist, daß völlig auf den Mittelschenkel verzichtet werden konnte. Das Ferritteil besteht nur noch aus einem Rahmen, der die Permeabili tät vergrößert und die äußeren Feldlinien bündelt, wodurch eine magnetische Abschirmfunktion erreicht wird. Diese Rahmenkon struktion kann auch für die Spule nach Fig. 2 verwendet werden. Die zur Erhöhung der Permeabilität vorhandenen, kurzen Mittel schenkel können als Einzelstücke aus Ferrit in den Spulenkörper eingelegt werden (Fig. 4). Der Vorteil der Rahmenkonstruktion ist, daß das Volumen der Spule durch höhere Außenschenkel (Fig. 5) bei gleichem Querschnitt verkleinert wird, und daß eine gute magnetische Abschirmung erreicht wird (Fig. 4). Die Abschirmwir kung kann noch dadurch verbessert werden, daß der Ferritrahmen kern aus einem Stück besteht und somit keinen Luftspalt aufweist. Fig. 3 shows an embodiment in which the shear is increased so that the middle leg could be completely dispensed with. The ferrite part only consists of a frame that increases the permeability and bundles the outer field lines, thereby achieving a magnetic shielding function. This framework construction can also be used for the coil according to FIG. 2. The short middle legs present to increase the permeability can be inserted as individual pieces of ferrite in the coil former ( FIG. 4). The advantage of the frame construction is that the volume of the coil is reduced by higher outer legs ( Fig. 5) with the same cross-section, and that a good magnetic shielding is achieved ( Fig. 4). The Abschirmwir effect can be further improved in that the ferrite core consists of one piece and thus has no air gap.
Für die Spannungsfestigkeit der Wicklung ist der Wickelkörper zweckmäßigerweise in Kammertechnik aufgebaut.The winding former is responsible for the dielectric strength of the winding expediently constructed in chamber technology.
Claims (6)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4007148A DE4007148A1 (en) | 1990-03-07 | 1990-03-07 | VOLUME-OPTIMIZED VIBRATION THROTTLE FOR HIGH CONTROL AND HIGH GOETE |
DE91103237T DE59100540D1 (en) | 1990-03-07 | 1991-03-04 | Vibrating choke especially for operating high-pressure metal vapor lamps. |
EP91103237A EP0445704B1 (en) | 1990-03-07 | 1991-03-04 | Reactor coil, particularly for operating high-pressure metal vapour lamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4007148A DE4007148A1 (en) | 1990-03-07 | 1990-03-07 | VOLUME-OPTIMIZED VIBRATION THROTTLE FOR HIGH CONTROL AND HIGH GOETE |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4007148A1 true DE4007148A1 (en) | 1991-09-12 |
DE4007148C2 DE4007148C2 (en) | 1992-07-02 |
Family
ID=6401603
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4007148A Granted DE4007148A1 (en) | 1990-03-07 | 1990-03-07 | VOLUME-OPTIMIZED VIBRATION THROTTLE FOR HIGH CONTROL AND HIGH GOETE |
DE91103237T Expired - Fee Related DE59100540D1 (en) | 1990-03-07 | 1991-03-04 | Vibrating choke especially for operating high-pressure metal vapor lamps. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE91103237T Expired - Fee Related DE59100540D1 (en) | 1990-03-07 | 1991-03-04 | Vibrating choke especially for operating high-pressure metal vapor lamps. |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0445704B1 (en) |
DE (2) | DE4007148A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4010473A1 (en) * | 1990-03-31 | 1991-10-02 | Vogt Electronic Ag | THROTTLE TRANSFORMER COMBINATION FOR THE OPERATION OF METAL VAPOR HIGH PRESSURE (MHD) LAMPS FROM ON-VEHICLE NETWORKS OF VEHICLES |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE922423C (en) * | 1942-08-21 | 1955-01-17 | Aeg | Transformer or reactor with a strongly flattened current-voltage characteristic in the upper part |
FR2077445A1 (en) * | 1969-04-14 | 1971-10-29 | Ibm France | |
US4298853A (en) * | 1980-03-27 | 1981-11-03 | General Electric Company | Compact high voltage shunt reactor |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2143037A1 (en) * | 1971-08-27 | 1973-03-01 | Joseph | INDUCTIVE ELEMENT |
DE3129381A1 (en) * | 1981-07-25 | 1983-02-10 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | POWER SUPPLY TRANSFORMER, ESPECIALLY FOR A TELEVISION RECEIVER |
JPS5922305A (en) * | 1982-07-28 | 1984-02-04 | Toshiba Electric Equip Corp | Leakage transformer for high frequency |
JPH01140613A (en) * | 1987-11-26 | 1989-06-01 | Matsushita Electric Works Ltd | Choke coil for high frequency |
-
1990
- 1990-03-07 DE DE4007148A patent/DE4007148A1/en active Granted
-
1991
- 1991-03-04 DE DE91103237T patent/DE59100540D1/en not_active Expired - Fee Related
- 1991-03-04 EP EP91103237A patent/EP0445704B1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE922423C (en) * | 1942-08-21 | 1955-01-17 | Aeg | Transformer or reactor with a strongly flattened current-voltage characteristic in the upper part |
FR2077445A1 (en) * | 1969-04-14 | 1971-10-29 | Ibm France | |
US4298853A (en) * | 1980-03-27 | 1981-11-03 | General Electric Company | Compact high voltage shunt reactor |
Also Published As
Publication number | Publication date |
---|---|
EP0445704B1 (en) | 1993-11-03 |
EP0445704A2 (en) | 1991-09-11 |
DE59100540D1 (en) | 1993-12-09 |
DE4007148C2 (en) | 1992-07-02 |
EP0445704A3 (en) | 1992-08-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8330 | Complete disclaimer |