EP0408982B1 - Disjoncteur de surintensité - Google Patents

Disjoncteur de surintensité Download PDF

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Publication number
EP0408982B1
EP0408982B1 EP90112708A EP90112708A EP0408982B1 EP 0408982 B1 EP0408982 B1 EP 0408982B1 EP 90112708 A EP90112708 A EP 90112708A EP 90112708 A EP90112708 A EP 90112708A EP 0408982 B1 EP0408982 B1 EP 0408982B1
Authority
EP
European Patent Office
Prior art keywords
contact element
slide
contact
switch according
spring
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.)
Expired - Lifetime
Application number
EP90112708A
Other languages
German (de)
English (en)
Other versions
EP0408982A3 (en
EP0408982A2 (fr
Inventor
Gene L. James
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0408982A2 publication Critical patent/EP0408982A2/fr
Publication of EP0408982A3 publication Critical patent/EP0408982A3/de
Application granted granted Critical
Publication of EP0408982B1 publication Critical patent/EP0408982B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/22—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release
    • H01H73/30—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release reset by push-button, pull-knob or slide
    • H01H73/306—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release reset by push-button, pull-knob or slide the push-button supporting pivotally a combined contact-latch lever
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/01—Application power window

Definitions

  • the invention relates to the use of such an overcurrent switch in a motor circuit for switching off the motor when it is blocked.
  • a window in particular the window on the driver's side, can be moved by a single actuation, the motor then switching off automatically when an end position is reached .
  • This end position of the window can either be defined as a full opening or a full closing position.
  • the one-time actuation typically consists of one Switch actuation by one quick touch.
  • the switch is then intended to maintain the actuation state until the end of the movement.
  • the switch and any associated circuitry are designed to detect the completion of this task and then turn off. The detection is usually carried out by measuring the current flowing through the motor, which blocks when the task is completed.
  • an overcurrent switch of the type mentioned is already known.
  • There an angular bridge contact element is clamped in the working position between a bimetal contact element serving as a current sensor and a fixed contact element; if the bimetal contact element is deformed as a result of an overcurrent, the bridge contact element is reset via a release spring.
  • the bridge contact element is there with laterally attached projections or fingers in corresponding recesses in the housing. This results in a relatively cumbersome assembly of the slide, bridge contact element and release spring in the housing.
  • the known overcurrent switch can only be used to close and interrupt a circuit. When using such a switch, for example for the window regulator of a vehicle or the like, in addition to the normal monostable switch, another switch must therefore be used which interrupts the circuit of the monostable switch for the duration of the overcurrent switch.
  • the object of the invention is therefore to provide an overcurrent switch of the type mentioned, which is small, inexpensive to manufacture, reliable in function and compact with all functions in one housing, so that additional switches with appropriate wiring are not required .
  • the bridge contact element is guided in a slide guide of the slide in its longitudinal direction in an overcurrent switch of the type mentioned.
  • the overcurrent switch according to the invention thus has the shape a compact push button switch whose bridge contact element can be locked in the actuation position and whose main circuit is automatically opened when the current sensor responds.
  • the switch can also be unlocked manually by pressing the push button again.
  • a thermal current sensor in particular a bimetal element, is preferably provided as the current sensor.
  • the overcurrent switch is preferably accommodated in a protective housing made of electrically insulating material, the individual functional elements being held and guided by ribs and grooves in the housing.
  • an auxiliary contact arrangement is arranged in the housing with a fixed auxiliary contact piece and an auxiliary contact spring biased relative to it, an auxiliary slide coupled to the actuating device being able to lift the auxiliary contact spring from the auxiliary contact piece when displaced in the actuating direction.
  • the fixed auxiliary contact piece can be mechanically and electrically connected to the first fixed contact element, while the auxiliary contact spring in an advantageous embodiment is a hairpin-shaped leaf spring.
  • an auxiliary circuit can be interrupted simultaneously with actuation of the overcurrent switch to close the main circuit, which auxiliary circuit is, for example, the circuit of a monostable switch connected in parallel. If the main circuit is triggered by the current sensor and thus interrupted, the auxiliary slide can also be reset via the associated resetting of the actuating device, as a result of which the auxiliary circuit is closed again.
  • the bridge contact element is guided on the slide itself.
  • this bridge contact element with the release spring can be preassembled on a slide assembly and inserted into the housing together with the latter.
  • the bridge contact element can be guided in such a way that the slide has two longitudinal legs with mutually facing rails, between which the bridge contact element is arranged to be displaceable in the longitudinal direction.
  • a guide rod running parallel to them is provided for the release spring, on which the bridge contact element can be displaced by means of a corresponding recess.
  • the trigger spring presses the bridge contact element against the first and the second contact element in the operating position of the overcurrent switch and, in the event of a trigger, causes the circuit to open even if the actuating device is held by hand in the closed position.
  • the main circuit is quickly interrupted by the rapid movement of the bridge contact element.
  • This is also pivoted under the action of the release spring about an axis perpendicular to the longitudinal direction of the slide, whereby in the rest position a coupling of the bridge contact element with the slide is made possible for a new actuation.
  • the overcurrent switch according to the invention can be used as a circuit breaker, as a single monitoring switch or in combination with other conventional switches. It is particularly advantageous to use it in the circuit of a motor blocking after performing its task, in which case the triggering of the overcurrent switch automatically opens the locked circuit.
  • FIG. 1 shows an overcurrent switch in an exploded view.
  • a housing 1 consists of a base body 11, a cover 12, a push button 13 being fitted into a front opening of the housing.
  • the base body 11 consists of pressed or injection-molded insulating material and forms the carrier for receiving the functional elements of the switch between ribs and in recesses.
  • the base body is initially open at the top; after the assembly of the individual parts, it is closed with the cover 12.
  • the housing has a correspondingly designed front cover 11a and 12a, which can each be produced in one piece with the housing parts (as shown in FIG. 1), but which could also be retrofitted as a separately manufactured part .
  • the front cover could be selected to match the respective style, color or other equipment of a vehicle and attached to the housing with conventional fastening elements, locking elements or the like.
  • the back of the case is the intended use designed accordingly, for example also in a corresponding adaptation to the selected connection technology, be it that tabs protruding from the housing are connected to individual cables via cable lugs, be it that connection pins are inserted into a printed circuit board or the like.
  • the housing also has lateral fastening elements for the cover 12, specifically in the form of bores 11b, which serve to receive fastening pins 12b of the cover 12.
  • fastening are also conceivable.
  • the functional assemblies inserted into the housing are essentially an auxiliary contact unit 2, a stationary contact element 3, a main contact unit 4 and an actuating device 5.
  • the auxiliary contact unit 2 has a connection element 15 which carries an auxiliary contact spring 16 which is bent in the shape of a hairpin and which is formed from a leaf spring. On the free or movable end of the auxiliary contact spring 16, a contact piece 17 is fastened, which cooperates with the contact piece 19 of the stationary contact unit, which will be described later.
  • the auxiliary contact spring 16 is biased towards the stationary contact unit.
  • a bead 16a is formed on it, which serves to actuate the auxiliary contact spring.
  • the stationary contact element 3 comprises a connecting element 18 made of suitable conductor material and an auxiliary contact piece 19 fastened to it.
  • This auxiliary contact piece 19 is riveted, for example, after assembly so that it forms a main contact piece 19a on the opposite side (see FIG. 2).
  • this stationary contact element can either close the main circuit with the main contact unit or the auxiliary circuit with the auxiliary contact unit.
  • the main contact unit 4 has a further connection element 26, to which a bimetal element 27 is attached as a current sensor is.
  • a movable contact element in the form of a locking element 28 is also fastened, for example by welding, which interacts with a fork-shaped end 28a with a movable bridge contact element 22.
  • the bimetallic element 27 extends essentially in the longitudinal direction in the base body 11 and bends away from the longitudinal axis in the event of excessive heating, in order to trigger the locking mechanism to be described later.
  • the actuating device 5 contains, as a switching element, the already mentioned movable bridge contact element 22, which has two legs 22a and 22b which are essentially perpendicular to one another.
  • the corresponding surfaces of the contact tab 22c are coated with contact material.
  • the second leg or longitudinal leg 22b of the bridge contact element carries near its end a contact piece 23 which cooperates with the main contact piece 19a (FIG. 2) of the stationary contact element 3 to form the main circuit.
  • the actuating device 5 furthermore has a slide 21, which generally has a fork-like shape and extends elongated approximately in the direction of the longitudinal axis of the housing 1, the two side legs 30 and a guide rod 32 formed between them extending in the direction of the pushbutton 13 (in FIGS Figures to the right).
  • the two side legs 30 of the slide 21 each have inwardly formed guide rails 33, between which the movable bridge contact element 22 is guided in a longitudinally displaceable manner in its cross leg 22a via corresponding guide notches 22d.
  • the bridge contact element 22 is opened in the direction of by means of a release spring 24 seated on the guide rod 32 its rest position, that is, biased to the right in the drawings.
  • the slide 21 is fastened via its side legs 30 with latching elements 30a in corresponding recesses 13a in the pushbutton 13.
  • the bridge contact element 22 is thus slidably held between the slide 21 and the push button 13 and is biased against the button 13 by the release spring 24. Due to the force of the release spring 24, the bridge contact element is also pivoted about the bearing lugs 14, these bearing lugs resting laterally on the longitudinal leg 30 of the slide and forming a pivot axis perpendicular to the direction of actuation.
  • the push button 13 like the slide 21, is made of suitable insulating material.
  • An auxiliary slide 20 is also formed on the pushbutton 13 and is used to actuate the auxiliary contact spring 16.
  • the pushbutton 13 comes to rest in the actuation opening 11c of the base body 11 and is biased outwards by a return spring 29.
  • This return spring 29 lies with its inner end in a recess 11d of the base body 1; depending on the switching state of the switching device, the spring button 29 pushes the push button 13 more or less out of the housing 1.
  • FIG. 2 shows the switch in a top view without a cover in the idle state, that is to say not actuated.
  • the return spring 29 presses the push button 13 outwards in the direction of the arrow 13b; the entire actuating device 5 including the slide 21 is thus pushed to the right in FIG. 2.
  • the auxiliary contact spring 16 rests with its auxiliary contact piece 17 on the contact piece 19 of the stationary contact element 3 and thus closes the auxiliary circuit.
  • the main circuit on the other hand, is open since the movable bridge contact element 22 is in the rightmost position in the rest position.
  • the return spring 29 Since the return spring 29 has a greater spring force than the release spring 24, the latter is compressed and the bridge contact element 22 is pressed via the release spring 24 and the shoulders 35 on the guide rails 33 to the right against the shoulder 34 of the base body 11, whereby a catch hook 25 at the free end of the leg 22b comes into engagement with the inner end 31 of the slide 21.
  • bridge contact element 22 is taken to the left by slide 21.
  • the bridge contact element is moved in the direction of arrow 36 until it engages with its contact tab 22c between the fork ends 28a of the locking element 28.
  • auxiliary slide 20 was moved to the left until it struck the bead 16a of the auxiliary contact spring 16 and lifted the contact piece 17 from the contact piece 19 of the stationary contact element 18.
  • the auxiliary circuit is thus open.
  • the auxiliary slide 20 mentioned is formed in one piece with the push button 13 in the example shown. But it could also be made as a separate part and retrofitted to the button be attached. If the pushbutton 13 is released in the state of FIG. 3, it is held in place by the slide 21 in the position shown in FIG. 3, since the slide 35 abuts the leg 22a of the bridge contact element 22 and by its locking in the actuated position is held. Only by thermal triggering via the bimetallic element 27 or by manual triggering by pressing the button again (FIG. 5) is this returned to the starting position in FIG.
  • FIG. 4 shows the switching device after tripping by overcurrent. If, in the switch position of FIG. 3, an excessively high current flows through the bimetallic strip 27 in accordance with an overload of the main circuit, then this bends briefly outward from the bridge contact element 22 (upwards in FIG. 3 or 4), as a result of which the locking between the locking element 28 and the bridge contact element 22 is canceled. In this case, the bridge contact element 22 is displaced to the right by the release spring 24 until it rests against the shoulder 34 of the base body 11 as shown in FIG. 4. The main circuit is thereby opened again, even if the bimetallic strip 27 returns to its starting position as shown in FIG. 4.
  • This triggering process occurs in any case due to the pretensioning of the trigger spring 24, even if, for example, the push button 13, as shown in FIG. 4, is still held by hand in the actuating position to the left. If the push button 13 is released, it returns with the slider to the starting position to the right (FIG. 2), as a result of which the auxiliary circuit is closed again via the auxiliary contact spring 16.
  • Figure 5 shows that the lock according to Figure 3 can also be released by hand. If the push button 13, as shown in FIG. 5, is pushed all the way to the left in the direction of arrow 37 until it strikes in the housing, then the slider 21 presses with its oblique shoulder 38 against the locking element 28 and bends the bimetallic strip 27 away from the bridge contact element 22 outwards, which also releases the lock. The bridge contact element thus also returns to its rest position in the case of manual release under the action of the release spring 24 in the direction of arrow 39. The main circuit is open in this case, while the auxiliary circuit is also still open. After releasing the button 13, the idle state of FIG. 2 is again obtained, the auxiliary circuit being closed. The switching device can then be operated again according to FIG. 6, as has already been described above.
  • a main circuit between the fixed contact element 3 and the movable locking element 28 can be closed by means of their connecting elements 18 and 26 by simply pushing the pushbutton 13 into the housing 1.
  • the locking of this main circuit can be released in two ways.
  • the switch is triggered as a result of an overcurrent through the bimetal element 27, as a result of which the bridge contact element 22 is returned to its rest position by the release spring 24. This cannot be prevented by holding the push button 13.
  • the bimetallic element 27 is mechanically deformed with the locking element 28 by pressing the pushbutton 13 again deeply, which likewise leads to the unlocking of the bridge contact element 22 and to its resetting by the release spring 24.
  • the described auxiliary contact with the contact piece 19 and the auxiliary contact spring 16 could be omitted. In this case, the switch could be made even more compact and narrow.
  • the auxiliary contact arrangement is particularly advantageous for certain applications, in particular for the parallel connection of the overcurrent switch with another switch.
  • FIG. 7 shows a typical circuit arrangement for the use of the overcurrent switch described here for the drive shown for a window regulator in the motor vehicle.
  • the circuit arrangement of FIG. 7 basically contains three components, namely a conventional window switch 41, the window motor 42 for actuating a window regulator (not shown) and a quick switch 43 which corresponds to the overcurrent switch shown in FIGS. 1 to 6.
  • a voltage source for example a 12 V battery, is connected via the connecting terminals 46 and 47 of the switch 41 and via the connecting terminal 26 of the switch 43.
  • the two switches 41 and 43 are shown in their idle state.
  • the switching arms 48 and 49 which can be actuated independently of one another, touch a contact element 51 and are therefore at ground potential (negative pole of the battery), so that the window motor 42 is switched off.
  • the switch 43 a current path via the auxiliary contact connection element 15 and the connection element 18 is closed. In this state, the switch 41 can be operated manually.
  • the switching arm 48 is switched from the connecting element 51 to the connecting element 46, while the switching arm 49 remains lying.
  • the switching arm 49 is placed on the connecting element 47 by the connecting element 51.
  • It is a monostable switch i. that is, the motor is operated as long as a corresponding rocker switch (not shown) is pressed, which operates the switching arms 48 and 49 independently.
  • the position of the switch 43 shown thus enables the switch 41 to be operated in a normal manner.
  • the switch 43 can be used to switch the window on quickly by briefly pressing the push button 13 by simply pressing it in.
  • the current path between the connection elements 15 and 18 is opened, while the current path between the connection elements 46 and 18 is closed, whereby the motor 42 lowers the window. Since the switch 43 is locked, it retains this function Lower the window even after releasing the button.
  • the motor 42 locks and thus its power consumption increases. This increased current also increases the temperature of the bimetal element 27, which moves with its free end and thus releases the bridge contact element 22 from the locking element 28.
  • the return spring 29 presses the push button 13 out of the housing and with it the bridge contact element 22 into the position of FIG. 2.
  • the application of Figure 7 can be modified in a variety of ways.
  • the switch 43 can also be used in such a way that the window is closed when it is actuated and the switch is triggered when the motor is completely closed when the motor is blocked.
  • the overcurrent switch can of course also be combined with various other circuit arrangements and switching devices.

Landscapes

  • Thermally Actuated Switches (AREA)
  • Push-Button Switches (AREA)
  • Breakers (AREA)
  • Control Of Electrical Variables (AREA)
  • Slide Switches (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Claims (14)

  1. Disjoncteur à maximum d'intensité présentant les caractéristiques suivantes :
    a) dans un corps de base (11) sont disposés un premier élément de contact fixe (3) et un second élément de contact mobile (28) et un élément de contact en pont (22), auquel cas dans une position de travail, l'élément de contact en pont (22) peut être verrouillé entre l'élément de contact fixe (3) et l'élément de contact mobile (28) à l'encontre de la force d'un ressort de déclenchement (24) et ferme ainsi une voie de courant principale entre l'élément de contact fixe (3) et l'élément de contact mobile (28);
    b) dans la voie de courant principale est monté un capteur de courant (27) qui, lors du dépassement d'une intensité prédéterminée, peut déplacer l'élément de contact mobile (28), déverrouiller l'élément de contact en pont (22) et ouvrir la voie de courant principale;
    c) un dispositif d'actionnement (5), monté dans le corps de base (11), possède un poussoir allongé (21), qui peut être actionné dans sa direction longitudinale à l'encontre d'une force de rappel et au moyen duquel l'élément de contact en pont (22) peut être amené d'une position de repos dans la position de travail, et
    d) l'élément de contact en pont (22) peut être déplacé en translation et basculer par rapport au poussoir (21);
    caractérisé par le fait
       e) que l'élément de contact en pont (22) est guidé dans une glissière (30) du poussoir.
  2. Disjoncteur à maximum d'intensité suivant la revendication 1, caractérisé par un dispositif de contact auxiliaire (16,19), monté dans le corps de base (11) et comportant une pièce de contact auxiliaire fixe (19) et un ressort de contact auxiliaire (16) précontraint par rapport à cette pièce, ainsi que par un poussoir auxiliaire (20) accouplé au dispositif d'actionnement (5) et qui, lors du déplacement dans la direction d'actionnement, peut écarter le ressort de contact auxiliaire (16), de la pièce de contact auxiliaire fixe (19).
  3. Disjoncteur à maximum d'intensité suivant la revendication 2, caractérisé par le fait que la pièce de contact auxiliaire fixe (19) est reliée au premier élément de contact fixe (3).
  4. Disjoncteur à maximum d'intensité suivant la revendication 2 ou 3, caractérisé par le fait que le ressort de contact auxiliaire (16) est un ressort à lame replié en forme d'épingle à cheveux.
  5. Disjoncteur à maximum d'intensité suivant l'une des revendications 1 à 4, caractérisé par le fait que le poussoir (21) possède deux branches longitudinales (30), entre lesquelles est guidé l'élément de contact en pont (22).
  6. Disjoncteur à maximum d'intensité suivant la revendication 5, caractérisé par le fait que le poussoir est une barre de guidage (32), qui est parallèle aux branches longitudinales (30), pour le ressort de déclenchement (24).
  7. Disjoncteur à maximum d'intensité suivant l'une des revendications 1 à 6, caractérisé par le fait qu'il est prévu, comme détecteur de courant, un élément bimétallique (27), sur l'extrémité libre duquel est fixé le second élément de contact mobile (28).
  8. Disjoncteur à maximum d'intensité suivant la revendication 7, caractérisé par le fait que le second élément de contact (28) est agencé sous la forme d'un élément de verrouillage, contre lequel l'élément de contact en pont (22) est repoussé par le ressort de déclenchement (24).
  9. Disjoncteur à maximum d'intensité suivant l'une des revendications 1 à 8, caractérisé par le fait que l'élément de contact en pont (22) possède une première branche (22a) qui s'étend approximativement perpendiculairement à la direction longitudinale du poussoir (21) en traversant ce dernier, et est guidé des deux côtés, par des encoches (22d), dans un rail de guidage (33) du poussoir et peut être verrouillé au moyen de son extrémité libre (22c) en établissant le contact avec l'élément de contact mobile (28).
  10. Disjoncteur à maximum d'intensité suivant la revendication 9, caractérisé par le fait que l'élément de contact en pont (22) possède une seconde branche (22b), qui s'étend approximativement parallèlement au poussoir (21), et une pièce de contact (23) pour établir le contact avec l'élément de contact fixe (18,19) et possède, sur son extrémité libre, un crochet d'entraînement (25) qui peut être accroché sur le poussoir (21).
  11. Disjoncteur à maximum d'intensité suivant l'une des revendications 1 à 10, caractérisé par le fait que le dispositif d'actionnement (5) possède un bouton-poussoir (13), qui est guidé dans une ouverture du boîtier et qui peut être verrouillé au poussoir (21) et est chargé au moyen d'un ressort de rappel (29) en sens opposé de la direction d'actionnement.
  12. Disjoncteur à maximum d'intensité suivant la revendication 11, caractérisé par le fait que le ressort de rappel (29) possède une force de rappel supérieure à celle du ressort de déclenchement (24).
  13. Disjoncteur à maximum d'intensité suivant l'une des revendications 9 à 12, caractérisé par le fait que l'élément de contact en pont (22) peut basculer autour d'un axe perpendiculaire à la direction longitudinale du poussoir, par l'intermédiaire de becs de support (14) qui sont recourbés latéralement et peuvent rouler latéralement sur le poussoir (21).
  14. Utilisation d'un disjoncteur à maxima d'intensité suivant l'une des revendications 1 à 13, caractérisé par le fait que le contact principal, qui est formé par les premier et second éléments de contact (3,28), est branché dans le circuit d'un moteur (42), que le contact auxiliaire, qui est formé par le ressort de contact auxiliaire (16) et par le premier élément de contact (3), est branché en série avec un interrupteur monostable (41), parallèlement au contact principal dans le circuit (42) du moteur et que le détecteur de courant (27) est dimensionné de manière que, lors du blocage du moteur (42), l'interruption du contact principal (19a,28) est déclenchée.
EP90112708A 1989-07-17 1990-07-03 Disjoncteur de surintensité Expired - Lifetime EP0408982B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US380955 1989-07-17
US07/380,955 US4984123A (en) 1989-07-17 1989-07-17 Latching switching device having current responsive release

Publications (3)

Publication Number Publication Date
EP0408982A2 EP0408982A2 (fr) 1991-01-23
EP0408982A3 EP0408982A3 (en) 1992-07-01
EP0408982B1 true EP0408982B1 (fr) 1994-11-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90112708A Expired - Lifetime EP0408982B1 (fr) 1989-07-17 1990-07-03 Disjoncteur de surintensité

Country Status (5)

Country Link
US (1) US4984123A (fr)
EP (1) EP0408982B1 (fr)
JP (1) JP2814012B2 (fr)
DE (1) DE59007675D1 (fr)
ES (1) ES2063866T3 (fr)

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CN112116765B (zh) * 2020-09-23 2022-02-08 浙江勇创天涯科技服务有限公司 一种基于物联网的快递柜

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US4518943A (en) * 1982-09-28 1985-05-21 Heinemann Electric Company Bimetallic circuit breaker with an auxiliary switch
DE3313465A1 (de) * 1983-04-14 1984-10-18 Ellenberger & Poensgen Gmbh, 8503 Altdorf Druckknopfbetaetigter ueberstromschalter
JPS603817A (ja) * 1983-06-20 1985-01-10 株式会社東海理化電機製作所 モ−タ制御用スイツチ装置
IT8422063V0 (it) * 1984-06-04 1984-06-04 Cavis Cavetti Isolati Spa Interruttore di comando per dispositivi alzacristalli di autoveicoli, atto a consentire una chiusura differenziata del circuito di alimentazione dei dispositivi medesimi.
US4754362A (en) * 1986-03-07 1988-06-28 Eaton Corporation Magnetically latching and current sensitive automatically unlatching switch assembly
EP0247508B1 (fr) * 1986-05-26 1993-07-14 Matsushita Electric Works, Ltd. Disjoncteur

Also Published As

Publication number Publication date
DE59007675D1 (de) 1994-12-15
JP2814012B2 (ja) 1998-10-22
EP0408982A3 (en) 1992-07-01
ES2063866T3 (es) 1995-01-16
US4984123A (en) 1991-01-08
EP0408982A2 (fr) 1991-01-23
JPH0357121A (ja) 1991-03-12

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