EP0162940B1 - Interrupteur de protection contre les surchages - Google Patents

Interrupteur de protection contre les surchages Download PDF

Info

Publication number
EP0162940B1
EP0162940B1 EP84106193A EP84106193A EP0162940B1 EP 0162940 B1 EP0162940 B1 EP 0162940B1 EP 84106193 A EP84106193 A EP 84106193A EP 84106193 A EP84106193 A EP 84106193A EP 0162940 B1 EP0162940 B1 EP 0162940B1
Authority
EP
European Patent Office
Prior art keywords
housing
contact
circuit breaker
overload circuit
heating resistor
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
Application number
EP84106193A
Other languages
German (de)
English (en)
Other versions
EP0162940A1 (fr
Inventor
André Nicolet
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.)
Lectra Trading AG
Original Assignee
Lectra Trading 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 Lectra Trading AG filed Critical Lectra Trading AG
Priority to DE8484106193T priority Critical patent/DE3478973D1/de
Priority to AT84106193T priority patent/ATE44630T1/de
Priority to EP84106193A priority patent/EP0162940B1/fr
Publication of EP0162940A1 publication Critical patent/EP0162940A1/fr
Application granted granted Critical
Publication of EP0162940B1 publication Critical patent/EP0162940B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/504—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by thermal means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
    • H01H37/5427—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting encapsulated in sealed miniaturised housing

Definitions

  • the invention relates to an electrical overload protection switch according to the preamble of claim 1.
  • Such an overload protection switch is known from DE-A-2 752 430. It serves to protect electrical consumers against overheating and can be used for a wide variety of electrical devices. Special areas of application are in cable drums, electrical distributors and sometimes also in cables for supplying electrical devices.
  • the overload protection switch with its switch contacts is in the circuit of the consumer to be monitored. A sharp increase in temperature at the monitoring location is taken as an indication of the presence of an overload condition, and if a limit temperature is exceeded, the switch contacts are electrically isolated using a bimetal switch. The direct power supply to the consumer via the switch contacts is interrupted and permanent damage caused by excessive temperatures is prevented.
  • the open state of the bimetallic switch should now be maintained until there is no longer any fear of the consumer being automatically switched on again; in particular, an operator is to be prompted to disconnect the consumer from the supply network before the overload protection switch returns to its normal state and enables current to flow again via the switch contacts.
  • the heating resistor connected in parallel with the metal switch is used for this.
  • the heating resistor is practically bridged when the bimetal switch is closed, so that it experiences no or at most minimal heating.
  • the bimetal switch opens the current flow to the consumer takes place exclusively via the heating resistor. This is designed to be so high-resistance that the supply voltage drops to a large extent at the heating resistor, and the small voltage drop still remaining at the consumer cannot lead to an operational malfunction of the latter.
  • the heating resistor heats up so strongly in a short time that the bimetal switch remains in the overheated, open position assigned to an interruption of the switching contacts.
  • the current flow through the heating resistor must be interrupted, which can be done by switching off the consumer or pulling out the mains plug. Briefly switching off the consumer is not sufficient to restore the normal condition of the overload protection, since the unit first has to cool down, which takes a certain period of time due to the predetermined thermal inertia.
  • overload protection switch is associated with high production costs with regard to various individual parts, and in particular the bimetal switch. It also has the disadvantage of a complicated and complicated structure, and requires a considerable amount of work in the assembly. For these reasons, such overload protection switches have not been widely used in practice.
  • Another overload protection switch is known from DE-C-1 080 673, which, however, does not have a parallel connection of the heating resistor and the bimetallic switch, but instead there is a heating winding connected around a bimetallic element into the supply to a switch contact of the switch.
  • the housing consists of two essentially identical half-shells, the components there cannot be inserted into suitable housing recesses and can be connected without soldering. The assembly is therefore relatively complex and the individual parts are complicated.
  • the object of the invention is to remedy these disadvantages and to provide an overload protection switch which is distinguished by a particularly simple construction and can be produced and assembled with little effort.
  • the overload protection switch has a housing 1 which contains a temperature-dependent switching circuit breaker which protects a connected consumer against overheating.
  • a bimetal switch is primarily considered as a circuit breaker. This receives a piece of bimetal 2 which undergoes thermal deformation, as a result of which switching contacts 3 are electrically connected to one another or separated from one another.
  • Contact lugs 4 are provided as carriers of the switching contacts 3 and are captively attached to the housing 1. One end 5 of the contact lugs 4 protrudes from the housing 1. It is used to connect the electrical supply line that leads to the consumer to be secured.
  • a contact lug 4 is connected to a network conductor and the other contact lug 4 to a conductor leading to the consumer, for which purpose suitable cable fastening means are provided at the ends 5.
  • two clamping screws 6 are indicated in FIG. 1, which press a stripped cable end against the contact tabs 4.
  • other devices for the preferably solderless connection can also be used, e.g. in the form of commercially available luster terminals.
  • the other end of the contact lugs 4 protrude into the housing 1, where they come to lie at the same height from one another. They are interconnected via a contact bridge 7 made of conductive material.
  • the contact bridge 7 lies on the surface of the contact lugs 4, and it can be lifted off by deforming the bimetal 2.
  • the z. B. are formed by embossing.
  • the contact bridge 7 is movably guided in the housing 1 with respect to the contact lugs 4. It is acted upon on one end face by a plunger 9, which establishes a force-transmitting connection to the bimetal piece 2.
  • the plunger 9 according to FIG. 1 is stamp-shaped. It has a cylindrical shaft 10 which is guided so that it can move axially in a suitable housing opening 11. At its end facing the contact bridge 7, the shaft 10 is expanded in the form of a protruding stamp plate 12. The stamp plate 12 lies flat against the contact bridge 7. It also forms a stop that limits the insertion depth of the plunger 9 in the direction of the bimetal piece 2. The opposite axial end of the shaft 10 forms a foot with which the plunger 9 stands centrally on the bimetal piece 2.
  • the bimetallic piece 2 is held on its edge in a membrane-like manner on the housing 1. It preferably asked for the shape of a circular disk, and accordingly the housing 1 is provided with a circumferential ring recess 13 which receives the edge of the bimetal piece 2.
  • the bimetal piece 2 extends freely through a chamber 14 in the interior of the housing 1, the required play for the thermal deformation of the bimetal piece 2 being ensured.
  • Fig. 1 shows the bimetal piece 2 in a curved state away from the contact bridge 7.
  • the contact bridge 7 rests on the contact attachments 8, and an electrical connection is made via the contact bridge 7 between the contact lugs 4; this corresponds to the normal state of the overload protection switch according to the invention, in which the connected consumer is loaded with the full mains voltage.
  • the bimetal piece 2 heats up, deforming it against the curvature shown in FIG. 1.
  • This movement of the contact bridge 7 takes place against the force of a return spring 15 which loads the contact bridge 7 on the end face remote from the plunger 9.
  • the return spring 15 is received in a suitable opening of the housing 1. It has a bow-shaped shape and its apex 16 bears against the contact bridge 7.
  • the overload protection switch only returns to the normal position if the connected consumer is previously switched off or is otherwise disconnected from the mains.
  • This protective effect which prevents an uncontrolled restart of the consumer, is achieved by means of a heating resistor 19 in the interior of the housing 1.
  • the heating resistor 19 is electrically connected in parallel with the bimetal switch, and it is thermally coupled to the bimetal piece 2.
  • a good heat transfer from the pickling resistor 19 to the bimetallic piece 2 is ensured in the illustrated embodiment in that these two components are arranged in one and the same chamber 14 of the housing 1.
  • the Seiz resistor 19 is substantially parallel and at a short distance from the bimetal piece 2 on the housing 1.
  • Webs 20 serve as spacers, which limit the ring recess 13 for the bimetallic disc 2 at the bottom.
  • the webs 20 only cover the region of the bimetal piece 2 near the edge, and likewise only the edge of the heating resistor 19 is in contact with the webs 20.
  • the electrical connection of the heating resistor 19 is carried out on the contact lugs 4.
  • a design which is particularly advantageous in terms of assembly technology and saves material is one in which the keiz resistor 19 is simultaneously held in the housing 1 by means of two resilient clamping brackets 22 and connected to the contact lugs 4.
  • the contact lugs 4 have a second contact point which, like the contact attachments 8, is coated in a suitable manner in order to achieve a low contact resistance, and in particular can be silver-plated.
  • the contact point is located on the underside of the contact tabs 4 facing away from the contact attachments 8. While the contact attachments 8 are located in a central region of the housing 1, the contact points for the clamping bracket 22 lie close to the edge of the housing.
  • a guide channel 23 is provided on the edge side next to the ring recess 13 for the bimetal piece 2, into which the clamping bracket 22 can be inserted.
  • the guide channel 23 and the ring recess 13 are separated from one another by a rib 24 formed integrally on the housing 1.
  • the guide channel 23 opens to the contact lugs 4 into a cabbage space below the connection point for the clamping bracket 22, and on the opposite side the guide channel 23 ends below the heating resistor 19 in the chamber 14 of the housing 1.
  • the heating resistor 19 has the shape of a flat, elongated rectangular plate, the lateral edge zones of which are designed for contacting the clamping brackets 22.
  • a heating resistor 19 is preferably produced as a thick-film resistor. It consists of an aluminum oxide plate, the edge zones z. B. coated with AgPd and the central region is formed as a resistance surface; the latter can be done, for example, by coating the middle region with a layer of resistance paste.
  • this design is not essential for the invention; Rather, a resistance wire or a heating spiral wound from resistance wire can also be used as the heating resistor 19.
  • a resistor with a positive temperature coefficient PTC resistor, PTC thermistor
  • the clamps 22 used to connect the heating resistor 19 are supported against a bottom 25 of the housing 1 and act on the underside of the contact lugs 4 and the underside of the heating resistor 19 with spring tension.
  • the clamps 22 consist of an electrically conductive material, so that a electrical connection between the connection points on the contact lugs 4 and the heating resistor 19 is established.
  • the spring tension of the clamping bracket 22 ensures a secure contact; at the same time, the clamp brackets 22 also have a mechanical holding function for the heating resistor 19, which they press against the webs 20.
  • the clamp bracket 22 have a C-shaped profile. Its C-back is received in the guide channel 23, while its curved C-legs serve to make contact with the contact lug 4 or the heating resistor 19.
  • the C-leg coming into contact with the heating resistor 19 is wavy in a serpentine shape, so that there are two contact points 27 with the bottom 25. Between these contact points 27 there is a single contact point 28 of the C-legs 26 on the heating resistor 19, to which a resilient contact pressure is exerted.
  • the overload safety switch according to the invention is characterized in that all of its components are received and guided in suitable housing recesses, and that the electrical connections located inside the housing can be made without soldering. This makes the overload protection switch particularly easy to manufacture and assemble.
  • the housing 1 also consists of two almost identical half-shells, which further simplifies production. A practical embodiment of such a housing is described below with reference to FIGS. 2 to 6, the same parts being provided with the same reference numerals.
  • FIG. 2 the view is directed towards an open calf shell of the housing 1.
  • the drawing plane corresponds to the parting plane of the half shells.
  • Components of the overload protection switch are inserted into the half-shell, which protrude beyond the parting plane and are held in both half-shells when the housing 1 is closed; these components appear cut in Fig. 2.
  • the overload protection switch in turn has two contact lugs 4, of which only the right one is shown in FIG. 2; the left half of FIG. 2, however, shows the slot 29 in the housing 1, which receives the contact lugs 4.
  • the shape of the anchoring of the contact lugs 4 in the housing 1 can be found in FIG. 2, FIG. 3, and in particular FIG.
  • the contact lugs 4 are inserted into the slot 29 of the housing half-shells, the notch 31 coming to lie at the level of the housing edge 32.
  • the slots 29 are placed so deeply in the solid material of the housing half-shells that a nose 33 remains (see FIG. 3) which falls into the notches 31.
  • the contact flags 4, as well the other components of the overload protection switch are first inserted into a half-shell of the housing, and then the other half-shell of the housing 1 is closed above them.
  • the contact lugs 4 are locked in their notches 31 by lugs 33 on both half-shells in the housing 1.
  • the end 5 of the contact lugs 4 protruding from the housing 1 is provided with a cable fastening device in the form of two angled prongs 34 which interact with a clamping screw in a threaded bore 35.
  • the prongs 34 start on trapezoidal beveled front edges of the contact lugs 4, and they project downward from the contact plane.
  • Other forms of cable attachment are also conceivable.
  • the end of the contact lugs 4 in the interior of the housing 1 carries a contact attachment 8 in the form of a dome-shaped configuration; the associated counter-embossing on the opposite underside of the contact lugs 4 is not shown in the figures.
  • the contact lugs 4 are held in the half-shells of the housing 1 between molded webs 36, 37.
  • the web 37 on the side of the contact attachments 8 also serves as a guide for the contact bridge 7 and as a support for the return spring 15 which acts on the contact bridge 7.
  • the contact bridge 7 is rectangular in cross-section and narrower than the contact lugs 4. It is provided on its upper side facing the return spring 15 with a centrally shaped spherical cap 38 which, for. B. can be applied by embossing.
  • the ball dome 38 serves to center the return spring 15, which is designed in the shape of a bow and rests with its apex 16 on the contact bridge 7.
  • the apex 16 is complementary to the ball dome 38 with an indentation in which the ball dome 38 comes to rest in a form-fitting manner.
  • the contact bridge 7 and the return spring 15 are thereby aligned and fixed to one another such that a central introduction of force onto the contact bridge 7 is always ensured.
  • the width of the return spring 15 corresponds approximately to that of the contact bridge 7.
  • the contact bridge 7 and the return spring 15 both lie on the web 37, which for this purpose extends in steps on two mutually offset levels in the interior of the housing 1.
  • FIGS. 2, 3 and 5 a view from the parting plane of the housing half-shells (see FIG. 2) shows in the background a holding section 39 of the web 37, with which this acts on the contact lugs 4.
  • This holding section 39 extends over the full length of the contact lug 4 to the center of the housing 1.
  • a step 40 which has a trapezoidal profile, projects from the holding section 39 into the foreground of FIG. 2 in steps.
  • the end face 41 of the shoulder 40 directed towards the center of the housing 1 forms a lateral stop for the contact bridge 7, which is guided with its transverse sides between the shoulders 40.
  • the contact bridge 7 is mounted on the long side between the holding sections 39; for this purpose the contact bridge 7 is narrower than the contact lugs 4.
  • the inclined upper side 42 of the shoulder 40 delimits a housing chamber which receives the return spring 15.
  • the inclination of the top 42 is matched to the spread angle of the bow-shaped return spring 15. As already mentioned, the latter has approximately the same width as the contact bridge 7. It is therefore held captively between the surface of the holding section 39, the inclined upper side 42 of the shoulder 40 and the bottom 18 of the housing 1.
  • a semi-cylindrical recess 43 is provided in the half-shells of the housing 1, which receives a circular bimetallic disc 2.
  • the recess 43 is graduated in diameter.
  • a section of larger diameter 44 halfway up the recess 43 is delimited in the axial direction on both sides by sections 45 of smaller diameter.
  • the portion of larger diameter 44 takes up the edge of the bimetallic disc 2, and the portions 45 of smaller diameter ensure the movement play required for the thermal deformation.
  • the bimetallic disc 2 is in a force-transmitting connection with the contact bridge 7 via a plunger 9.
  • the plunger 9 is a simple round rod which is received between semi-cylindrical guide surfaces of the housing half-shells.
  • a heating resistor 19 in the form of a rectangular plate is contained in the housing 1.
  • the heating resistor 19 is in contact with a rib 24, which serves as a spacer to the bimetallic disc 2. It is locked in this position by means of two resilient clamping brackets 22, which at the same time establish an electrical connection to the contact tabs 4.
  • the clamping brackets 22 have the profile of a parallelogram open on a base line, and the bracket ends are rounded in a dome shape.
  • the clamp brackets 22 are inserted with their parallelogram back 46 into a guide channel of the housing half-shells, and the parallelogram legs 47 act resiliently on the contact lug 4 or the heating resistor 19, their angle of attack being elastically variable relative to the parallelogram back 46.
  • the outer contour of the housing half-shells essentially follows that of the components contained.
  • the contact lugs 4, the contact bridge 7, the return spring 15 and the heating resistor 19 have a rectangular plan.
  • the corresponding part of the housing half-shells has a cuboid shape.
  • the bimetal piece 2 is a circular disk. It is received in a circular cylindrical bulge 48 of the housing half-shells 1.
  • tabs 49, 50 are further formed at the case half shells, by means of which the half-shells are assembled together when the housing 1 is assembled.
  • the tabs 49, 50 form cuboid approaches of the housing half-shells with reduced width and thickness in the illustrated embodiment. They are located above the contact level, or below the heating resistor 19, and are provided with fastening means in the form of two rivet holes 51.
  • the tab 49 below the heating resistor 19 is short and solid in the material.
  • the other flap 50 is extended upwards and designed as a hollow body, with a web-shaped material web 52 being provided only in the vicinity of the rivet hole 51.
  • the half-shells can be provided on their contact surface with complementary guide structures which engage with one another on the principle of tongue and groove and position the half-shells during assembly.
  • the housing edge 32 accordingly has a web 53 with a triangular cross section on one half side of each half shell, and the housing edge 32 on the other half side is leveled with a complementary triangular groove 54.
  • the web 53 of the one half-shell falls into the triangular groove 54 of the other half-shell during assembly, which ensures precise alignment of the hat shells.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)
  • Control Of Eletrric Generators (AREA)
  • Amplifiers (AREA)
  • Electronic Switches (AREA)

Claims (15)

1. Disjoncteur à surcharge comprenant un boîtier (1), des contacts (3) contenus dans le boîtier (1), un interrupteur à bilame qui sépare électriquement les contacts (3) lorsqu'une température limite est dépassée et une résistance chauffante (19) montée en parallèle sur l'interrupteur à bilame, caractérisé par le fait que le boîtier (1) se compose de deux demi-coquilles sensiblement identiques, et par le fait que tous les éléments constitutifs du disjoncteur à surcharge sont logés et guidés dans des évidements appropriés du boîtier avec des étriers élastiques de serrage (22) et sont reliés sans soudage à l'intérieur du boîtier (1), les étriers élastiques de serrage (22) assurant aussi bien le maintien des éléments constitutifs que la réalisation des connexions électriques situées à l'intérieur du boîtier (1).
2. Disjoncteur à surcharge selon la revendication 1, caractérisé par le fait que deux cosses de contact (4) peuvent être ancrées sur le boîtier (1), et que la résistance chauffante (19) est maintenue dans le boîtier (1) au moyen de deux étriers de serrage (22) à la fois et reliée aux cosses de contact (4).
3. Disjoncteur à surcharge selon la revendication 2, caractérisé par le fait que les étriers de serrage (22) s'appuient sur un fond (25) du boîtier (1) et exercent une pression élastique sur les cosses de contact (4) et la résistance chauffante (19).
4. Disjoncteur à surcharge selon la revendication 2 ou 3, caractérisé par le fait qu'une pièce bimétallique (2) de l'interrupteur à bilame est maintenue dans le boîtier (1) entre les cosses de contact (4) et la résistance chauffante (19), et que les étriers de serrage (22) peuvent être introduits latéralement dans un canal de guidage (23) à côté de la pièce bimétallique (2).
5. Disjoncteur à surcharge selon l'une des revendications 2 à 4, caractérisé par le fait que les étriers de serrage (22) présentent un profil en forme de 6 et sont ondulés sur l'aile (26) du 6 qui vient en contact avec la résistance chauffante (19), de sorte que son point de contact (28) avec la résistance chauffante (19) se trouve entre deux points d'appui de l'étrier de serrage (22) sur le fond (25) du boîtier (1).
6. Disjoncteur à surcharge selon l'une des revendications 2 à 4, caractérisé par le fait que les étriers de serrage (22) présentent le profil d'un parallélogramme ouvert sur une base, les extrémités de l'étrier étant arrondies en forme de calotte.
7. Disjoncteur à surcharge selon l'une des revendications 2 à 6, caractérisé par le fait que les extrémités des cosses de contact (4) situées dans le boîtier (1) viennent au même niveau, à distance l'une de l'autre, et sont connectées l'une à l'autre au moyen d'un pontet de contact (7) qui porte sur les cosses de contact (4) et peut en être soulevé, qui est relié sur un côté frontal avec report de forces à la pièce bimétallique (2) par l'intermédiaire d'un poussoir (9), et qui est soumis à l'action d'un ressort de rappel (15) sur l'autre côté frontal.
8. Disjoncteur à surcharge selon la revendication 7, caractérisé par le fait que le poussoir (9) porte sur le milieu de la pièce bimétallique (2) et est monté coulissant dans le boîtier (1).
9. Disjoncteur à surcharge selon la revendication 7, caractérisé par le fait que le ressort de rappel (15) en forme d'étrier s'appuie sur un fond (18) du boîtier (1) par deux bras de ressort (17) en saillie latéralement et porte par son sommet (16) sur le pontet de contact (7).
10. Disjoncteur à surcharge selon la revendication 9, caractérisé par le fait qu'une calotte sphérique (38) est formée au centre du pontet de contact (7) et que le ressort de rappel (15) présente une voussure qui s'ajuste sur la calotte sphérique (38).
11. Disjoncteur à surcharge selon l'une des revendications 7 à 10, caractérisé par le fait que les cosses de contact (4), le pontet de contact (7), le ressort de rappel (15) et la résistance chauffante (19) présentent un tracé rectangulaire, la partie associée du boîtier étant conformée pour présenter une forme parallélépipédique correspondante, et par le fait que la pièce bimétallique (2) est un disque circulaire qui est logé dans un renflement en cylindre de révolution (48) du boîtier (1).
12. Disjoncteur à surcharge selon l'une des revendications 1 à 11, caractérisé par le fait que les demi-coquilles du boîtier (1) sont munies sur leurs surfaces de contact de structures de guidage complémentaires qui viennent en prise l'une avec l'autre selon le principe de l'assemblage par rainure et languette et qui positionnent les demi-coquilles lors de l'assemblage.
13. Disjoncteur à surcharge selon la revendication 12, caractérisé par une nervure (53) à contour triangulaire en saillie sur un bord (32) du boîtier de l'une des demi-coquilles qui pénètre dans une rainure triangulaire (54) ménagée sur le bord (32) du boîtier de l'autre demi-coquille.
14. Disjoncteur à surcharge selon l'une des revendications 1 à 13, caractérisé par le fait que les demi-coquilles sont rivées ou vissées l'une sur l'autre sur des pattes (49, 50) qui sont formées sur elles.
15. Disjoncteur à surcharge selon l'une des revendications 2 à 14, caractérisé par le fait que les cosses de contact (4) portent une borne de serrage pour un câble sur leur extrémité (5) qui fait saillie hors du boîtier (1).
EP84106193A 1984-05-30 1984-05-30 Interrupteur de protection contre les surchages Expired EP0162940B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE8484106193T DE3478973D1 (en) 1984-05-30 1984-05-30 Overload protection switch
AT84106193T ATE44630T1 (de) 1984-05-30 1984-05-30 Ueberlastsicherungsschalter.
EP84106193A EP0162940B1 (fr) 1984-05-30 1984-05-30 Interrupteur de protection contre les surchages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84106193A EP0162940B1 (fr) 1984-05-30 1984-05-30 Interrupteur de protection contre les surchages

Publications (2)

Publication Number Publication Date
EP0162940A1 EP0162940A1 (fr) 1985-12-04
EP0162940B1 true EP0162940B1 (fr) 1989-07-12

Family

ID=8191958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84106193A Expired EP0162940B1 (fr) 1984-05-30 1984-05-30 Interrupteur de protection contre les surchages

Country Status (3)

Country Link
EP (1) EP0162940B1 (fr)
AT (1) ATE44630T1 (fr)
DE (1) DE3478973D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710672C2 (de) * 1987-03-31 1997-05-15 Hofsaes Geb Zeitz Ulrika Temperaturwächter mit einem Gehäuse
DE3802647C2 (de) * 1988-01-29 1998-02-05 Lectra Trading Ag Anzeigevorrichtung für den Schaltzustand eines Überlastschalters
EP0903836A3 (fr) * 1997-09-22 2000-05-17 G. Kienzler AG Interrupteur de protection thermique
JP6997689B2 (ja) * 2018-08-27 2022-01-18 ボーンズ株式会社 ブレーカー、安全回路及び２次電池パック

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2369986A (en) * 1942-07-21 1945-02-20 Gen Electric Electric protective means

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1490815B2 (de) * 1964-09-26 1972-05-18 Texas Instruments Ine, Dallas, Tex (VStA) Selbstschalter mit einem gegen den druck einer feder axial beweglichen druckknopfglied
US4048611A (en) * 1976-06-23 1977-09-13 Kuczynski Walter J Thermal switch
DE2752430A1 (de) * 1977-11-24 1979-05-31 Braun Ag Schutzschalter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2369986A (en) * 1942-07-21 1945-02-20 Gen Electric Electric protective means

Also Published As

Publication number Publication date
EP0162940A1 (fr) 1985-12-04
DE3478973D1 (en) 1989-08-17
ATE44630T1 (de) 1989-07-15

Similar Documents

Publication Publication Date Title
DE3688800T2 (de) Schutzsysteme für einen Kältemaschinenkompressormotor.
DE69507848T2 (de) Kompakte Schutzeinrichtung
EP2601715B1 (fr) Dispositif de protection contre les surcharges thermiques
EP0887826B1 (fr) Interrupteur à commande thermique avec pont de contact
DE19941190B4 (de) Wärmeschutzsicherung
EP2511930B1 (fr) Disjoncteur thermique
EP2874171B1 (fr) Mécanisme de commutation variable avec la température
EP0966014A1 (fr) Interrupteur à commande thermique avec élément de transfert de courant
EP0920044B1 (fr) Interrupteur avec un mécanisme de commutation sensible à la température
DE69208705T2 (de) Elektrothermisches Relais mit Schichtheizelement
DE102011101862A1 (de) Temperaturabhängiger Schalter mit Stromübertragungsglied
DE3335934C2 (fr)
DE10151107A1 (de) Wärmeschutzeinrichtung
EP0994497B1 (fr) Interrupteur avec support isolant
DE2917557A1 (de) Waermeschutzschalter
DE3526785C1 (de) Druckknopfbetaetigter UEberstromschutzschalter
DE3233909A1 (de) Schnappvorrichtung, insbesondere elektrischer schnappschalter
DE1915721B2 (de) Thermostatische schaltvorrichtung
DE69505884T2 (de) Geräte mit Widerstandselemeten und Temperaturschutzvorrichtung zum Gebrauch dafür
EP0162940B1 (fr) Interrupteur de protection contre les surchages
EP0938116B1 (fr) Interrupteur
DE2448026C3 (de) Direkt beheizter Bimetallstreifen zur thermischen Auslösung eines Überstromschalters
EP2843680B1 (fr) Commutateur thermique
DE2502579C2 (de) Druckknopfbetaetigter ueberstromschalter mit thermischer ausloesung
DE3729223A1 (de) Thermische magnetische ausloeseeinheit fuer schalter mit gekapseltem gehaeuse

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB LI NL

17P Request for examination filed

Effective date: 19860430

17Q First examination report despatched

Effective date: 19870902

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB LI NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19890712

Ref country code: BE

Effective date: 19890712

REF Corresponds to:

Ref document number: 44630

Country of ref document: AT

Date of ref document: 19890715

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3478973

Country of ref document: DE

Date of ref document: 19890817

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910426

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19910430

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19910514

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910829

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19920530

Ref country code: AT

Effective date: 19920530

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19920531

Ref country code: CH

Effective date: 19920531

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19920530

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19930129

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030424

Year of fee payment: 20