EP0552169A1 - Interrupteur a haute tension - Google Patents

Interrupteur a haute tension

Info

Publication number
EP0552169A1
EP0552169A1 EP91915511A EP91915511A EP0552169A1 EP 0552169 A1 EP0552169 A1 EP 0552169A1 EP 91915511 A EP91915511 A EP 91915511A EP 91915511 A EP91915511 A EP 91915511A EP 0552169 A1 EP0552169 A1 EP 0552169A1
Authority
EP
European Patent Office
Prior art keywords
voltage switch
light
voltage
switch according
emitting 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.)
Ceased
Application number
EP91915511A
Other languages
German (de)
English (en)
Inventor
Manfred Vogel
Werner Herden
Johann Konrad
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0552169A1 publication Critical patent/EP0552169A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/02—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors
    • F02P7/03—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors with electrical means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/02—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors
    • F02P7/03—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors with electrical means
    • F02P7/035—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors with electrical means without mechanical switching means

Definitions

  • the invention relates to a high voltage switch according to the preamble of the main claim.
  • a high-voltage switch is already known from EP 0 377 619, which takes over the function of an ignition voltage distributor when the high-voltage distribution is at rest.
  • This high-voltage switch consists of semiconductor elements that have light-sensitive zones. The light-sensitive zones can be controlled by light-emitting elements so that, for. B. switch through the ignition sequence accordingly.
  • LEDs arranged opposite the light-sensitive zones of the high-voltage switch.
  • the disadvantage here is that some of the light energy is lost to the environment, which affects the functional reliability of the high-voltage switch.
  • the arrangement according to the invention with the characterizing features of the main claim has the advantage that the light energy through a light-concentrating formation of the transition between light emitting element and light-sensitive zone of the high-voltage switch passed on with little loss and the functional reliability is improved.
  • the glazing of the high-voltage switch and a corresponding design of the light-emitting element for focusing the light can already be included in the focusing of the light energy.
  • Another option is to install the high-voltage switch in a reflector trough or to transmit the light energy to the high-voltage switch using mirrored light guide pieces.
  • the light guide can be arranged along this high-voltage switch and is specially designed with notches or knobs on the light-sensitive areas.
  • FIG. 1 shows an ignition circuit with a high-voltage switch
  • FIG. 2a in cross-section
  • FIG. 2b in front view the transition point of the optical fiber-high-voltage switch with an additional lens
  • FIG. 3 shows a cross-section through the high-voltage switch with inclusion of the glazing in the focusing of the light, a reflector trough
  • Figure 5 with laser-treated glazing
  • Figure 6 advantageous embodiments of a light guide with a thin insulation layer in the longitudinal or cross-section a) with notches, b) with knobs and c) with flattening
  • Figure 7 shows an embodiment with a light guide.
  • a battery voltage UB is connected to a primary winding 1 of an ignition coil 2, a switching transistor 3 being interposed.
  • the switching transistor 3 is continuously operated by a controller via its base connection to generate a secondary-side high voltage on the ignition coil.
  • a secondary winding 5 of the ignition coil 2 is grounded on the one hand and is connected to the spark plugs 10 to 13 on the other hand in each case via a high-voltage switch 6 to 9.
  • the high-voltage switches 6 to 9 are used as toggle diodes in a cascade connection, a cascade consisting of 30 to 50 chips, so that approx. 40 KV blocking voltage is guaranteed, at their light-sensitive areas by a light-emitting source 14 to 17 (e.g.
  • FIGS. 2 to 6 show possibilities for designing the transition from the light-emitting element to the light-sensitive zone of the high-voltage switch to be light-igniting, in order to ensure that as little light energy as possible is lost.
  • FIG. 2a The cross section of a high-voltage switch 18, a glass rod 19 and an optical fiber 20 can be seen in FIG. 2a.
  • the glass rod 19 has a lenticular effect due to the different refractive indices of air and glass and due to its round cross section and bundles the light rays of the LED 14 in such a way that as much energy as possible hits the high-voltage switch 18.
  • Figure 2b shows the same embodiment in front view.
  • FIG. 3 also shows a cross section through the high-voltage switch 18 and the associated light guide 20, but here no glass rod is used for focusing the light, but the thick glazing 21 is used to focus the light energy.
  • the polygonal high-voltage switch 18 is arranged in such a way that the largest possible circumferential surface of the high-voltage switch is irradiated with light energy.
  • FIG. 4 shows the cross section of the high-voltage switch with associated light guide 20, the high-voltage switch 18 being arranged in a reflector trough 22. This configuration enables a high effectiveness of the transmission of the light energy to the light-sensitive zones of the high-voltage switch 18, since no light energy is lost due to the reflection.
  • FIG. 5 shows a high-voltage switch 18 with thick glazing 21, the surface of the glazing being treated with a laser in such a way that small elevations 23, which have a lens effect, arise.
  • 6a to c show that, in the case of a thin transparent insulation layer 24 on the high-voltage switch 18, the light guide 20 can also be appropriately designed for a low-loss transition of the light energy.
  • the light guide 20 is arranged lengthwise at the high-voltage switch and is mirrored at its end 25, ie no light energy can escape at the end of the light guide 20.
  • FIG. 6a shows a light guide which has notches 26, the notches covering only part of the high-voltage switch 8 and being arranged at the distance which corresponds to the distance between the light-sensitive zones on the high-voltage switch.
  • FIG. 6b shows an optical waveguide with knobs 27 formed, the spacing of the knobs 27 corresponding to the spacing of the light-sensitive zones.
  • the high-voltage switch 18 at its light-sensitive zones, that is to say the pn junctions, in such a way, for example, by indentations that the light switch 20 and the high-voltage switch can be assigned to one another with as little space as possible.
  • the possible flattening of the light guide 20 shown in FIG. 6c on the side of the high-voltage switch 18 with which it rests on the high-voltage switch 18 should also be mentioned.
  • a light guide piece 28 has a round cross section on one side around the light-emitting element or the end of a light guide 20 to record and is adapted on the other side to the shape of the high-voltage switch, for example by means of a rectangular or linear exit surface.
  • the outer surface of this light guide piece 28 can be white or mirrored, so that almost complete transmission of the light energy to the light-sensitive zones is ensured by reflection on the outer surface.
  • an optical fiber 20 according to FIG. 8 can be fanned out from many individual optical fibers 30 in such a way that one optical fiber each can be assigned to a light-sensitive zone of the high-voltage switch 18, i.e. the originally round cross section of the optical fiber 20 becomes linear or stretched rectangular.
  • these optical fibers 30 can each be led into a notch 29 on the light-sensitive zones of the cooking voltage switch, so that the transition from the end of an optical fiber 30 at a pn junction is as favorable as possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electronic Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

Il est proposé un interrupteur à haute tension (18) contenant des zones photosensibles, lequel transmet la haute tension aux bougies d'allumage. Afin de transmettre l'énergie lumineuse depuis l'élément émetteur de lumière (20) aux zones photosensibles de l'interrupteur à haute tension (18) avec le moins de pertes possibles, on propose une configuration focalisant la lumière dans la zone de transition (21) entre l'élément émetteur de lumière et la zone photosensible.
EP91915511A 1990-10-10 1991-09-06 Interrupteur a haute tension Ceased EP0552169A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4032131 1990-10-10
DE4032131A DE4032131A1 (de) 1990-10-10 1990-10-10 Hochspannungsschalter

Publications (1)

Publication Number Publication Date
EP0552169A1 true EP0552169A1 (fr) 1993-07-28

Family

ID=6415999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91915511A Ceased EP0552169A1 (fr) 1990-10-10 1991-09-06 Interrupteur a haute tension

Country Status (6)

Country Link
US (1) US5369283A (fr)
EP (1) EP0552169A1 (fr)
JP (1) JPH06502003A (fr)
KR (1) KR930702613A (fr)
DE (1) DE4032131A1 (fr)
WO (1) WO1992007188A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4946319A (en) * 1988-08-12 1990-08-07 Kennametal Inc. Cutting insert and clamping arrangement therefor
GB9224651D0 (en) * 1992-11-25 1993-01-13 Ici Plc Switching means
EP0627554B1 (fr) * 1993-05-28 1997-05-28 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Système d'allumage sans distributeur avec des commutateurs de haute tension contrÔlés par lumière
DE4405994A1 (de) * 1993-05-28 1994-12-01 Bayerische Motoren Werke Ag Hochspannungsschalter, insbesondere als Zündspannungsverteiler zum Anlegen der Zündspannung an Zündkerzen einer Brennkraftmaschine
FR2710209B1 (fr) * 1993-09-14 1995-11-03 Lacoste Frederic Guillaume Dispositif mélangeur de signaux analogiques adapté aux signaux continus et à fréquence basse.
KR950704611A (ko) * 1993-09-29 1995-11-20 랄프 베렌스·위르겐 프리드만 내연기관의 점화시스템용 고전압 스위치(High voltage switch for ignition systems of internal combustion engines)
EP0789626B1 (fr) * 1993-11-16 2001-02-14 The Procter & Gamble Company Dispositif de pulverisation
DE4417164C1 (de) * 1994-05-17 1995-06-22 Bosch Gmbh Robert Hochspannungskippdiode insb. geeignet als Zündspannungsverteiler eines Verbrennungsmotors
DE4442545C1 (de) * 1994-11-30 1995-12-14 Bosch Gmbh Robert Anordnung zum Schalten eines Hochspannungsschalters mittels optischer Energie
DE19502304A1 (de) * 1995-01-26 1996-08-01 Bosch Gmbh Robert Zündanlage für Brennkraftmaschinen
US9142339B2 (en) * 2012-06-26 2015-09-22 Lawrence Livermore National Security, Llc Compact optical transconductance varistor
US10333010B2 (en) * 2017-04-14 2019-06-25 Lawrence Livermore National Security, Llc Photoconductive device with optical concentrator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4577114A (en) * 1984-05-17 1986-03-18 The United States Of America As Represented By The Secretary Of The Army High power optical switch for microsecond switching
US4695733A (en) * 1984-10-17 1987-09-22 Philip Pesavento Photoconductive power switch
DE3722666A1 (de) * 1987-07-09 1989-01-19 Bosch Gmbh Robert Hochspannungsschalter
US4899204A (en) * 1987-12-01 1990-02-06 General Electric Company High voltage switch structure with light responsive diode stack
US4900947A (en) * 1988-05-02 1990-02-13 The United States Of America As Represented By The Secretary Of The Army Asynchronous marx generator utilizing photo-conductive semiconductor switches
US5047623A (en) * 1990-02-02 1991-09-10 The United States Of America As Represented By The United States Department Of Energy Transparent selective illumination means suitable for use in optically activated electrical switches and optically activated electrical switches constructed using same
US5155352A (en) * 1991-11-25 1992-10-13 The United States Of America As Represented By The Secretary Of The Army Optically activated sub-nanosecond hybrid pulser

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9207188A1 *

Also Published As

Publication number Publication date
KR930702613A (ko) 1993-09-09
US5369283A (en) 1994-11-29
DE4032131A1 (de) 1992-04-16
WO1992007188A1 (fr) 1992-04-30
JPH06502003A (ja) 1994-03-03

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