EP0778599B1 - Interrupteur avec un mécanisme de commutation sensible à la température - Google Patents

Interrupteur avec un mécanisme de commutation sensible à la température Download PDF

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Publication number
EP0778599B1
EP0778599B1 EP96118727A EP96118727A EP0778599B1 EP 0778599 B1 EP0778599 B1 EP 0778599B1 EP 96118727 A EP96118727 A EP 96118727A EP 96118727 A EP96118727 A EP 96118727A EP 0778599 B1 EP0778599 B1 EP 0778599B1
Authority
EP
European Patent Office
Prior art keywords
switch
countercontact
accordance
housing
housing part
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
EP96118727A
Other languages
German (de)
English (en)
Other versions
EP0778599A2 (fr
EP0778599A3 (fr
Inventor
Marcel Hofsäss
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.)
HOFSAESS, MARCEL
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0778599A2 publication Critical patent/EP0778599A2/fr
Publication of EP0778599A3 publication Critical patent/EP0778599A3/fr
Application granted granted Critical
Publication of EP0778599B1 publication Critical patent/EP0778599B1/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
    • 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 present invention relates to a switch with a Housing, the first housing part a lower part and as second housing part an upper part closing the lower part has, and with a temperature-dependent inserted in the lower part Rear derailleur on an inner bottom of the First counter contact as well as on an inner bottom of the lower part, a second counter contact is provided, wherein the rear derailleur depending on its temperature electrically conductive connection between the two mating contacts manufactures that through the associated housing part of are contactable on the outside, and at least one housing part Insulating material is made.
  • the housing has an electrical made of conductive material pot-like lower part as well a lid part which closes the lower part and which Insulating material is made.
  • This is loose in this housing Switch mechanism inserted, which comprises a spring washer, the one movable contact.
  • the spring washer works against one Bimetallic disc that is placed over the electrical contact is.
  • the spring washer presses below the switching temperature, which is supported on the bottom of the lower part, the movable Contact against a mating contact provided on the inside of the cover and is like a rivet through the wall of the lid extends outwards.
  • the spring washer itself made of electrically conductive material is manufactured, it ensures below the response temperature of the Switchgear for a low-resistance, electrically conductive connection between the mating contact on the cover part and the Bottom part that is contacted from the outside. Will now If the temperature of the rear derailleur rises, the bimetal disc snaps suddenly turns and presses the moving contact against the force of the spring washer from the mating contact of the cover away so that the electrical connection is interrupted.
  • Such switches are generally used for temperature monitoring used by electrical devices. As long as the temperature of the electrical device a predetermined response temperature does not exceed, the switch remains closed in line with the consumer to be protected is switched. Now the temperature of the consumer increases impermissible, the bimetal disc snaps over and interrupts so the flow of electricity to the consumer.
  • the known switch has the disadvantage that its manufacture is relatively expensive. This is mainly due to the fact that after the counter contact after the manufacture of the cover part must be attached to the cover part, at the same time for an electrically conductive connection through the wall of the cover part must be taken care of to the outside. This happens like a rivet that goes outside the lid into a head passes over, soldered to the strands, crimp connections etc. have to. This mating contact on the cover is done in usually manually and is therefore very expensive.
  • connection technology in the known switch is also complex, since after its complete final assembly strands or Crimp connections both to the head of the rivet and to a suitable place on the electrically conductive lower part or have to be welded on.
  • This connection technology However, it is very expensive because it is often done by hand becomes.
  • Another switch is known from DE 21 21 802 A, in whose housing also has a rear derailleur as described above is arranged.
  • This switch has a cover part and a lower part both are pot-shaped and made of electrically conductive material manufactured. Both on the upper part and on the lower part are molded in one piece, the Crimp connection of the lower part by a corresponding notch extends outward in the wall of the top. Between the An insulating film is arranged on the upper part and the lower part, to electrically isolate the two housing parts from each other.
  • the switching mechanism now contacts on the one hand via the spring washer the lower part and on the other hand via the movable contact the cover part so that an electrically conductive connection between the two crimp terminals as long as the Switchgear temperature is below the response threshold. If the temperature of the rear derailleur rises, it will electrical connection opened in the manner described above.
  • connection technology in this known switch very is easy to implement, all you have to do is strands to be clamped in the crimp terminals is its assembly because of the insulating film to be inserted very expensive and therefore only to be carried out manually. This manual final assembly is not only wage-intensive, it also leads to assembly errors and thus to a higher committee.
  • a switch with one made of electrically conductive Made of lower part and a cover part Insulating material is known from DE 31 22 899 C2. With this Switches are cast in the cover part two connecting tongues.
  • a first connecting tongue is with a plate-shaped part connected in one piece, which sits in the middle of the cover part and carries the first counter contact.
  • the other contact tongue forms with a transverse contact, they strip together a T-shaped Part, the outer ends of which follow around the lid are bent below where they are assembled with the Lower part are in contact, the inner bottom of which is second Counter contact serves.
  • the known switch is also complicated in structure, during final assembly, care must be taken that the bent They actually end up in electrical contact with the Bottom part.
  • Another disadvantage of this switch is in that between the lower part and the bent ends of the contact strip there are further contact resistances are that can corrode in everyday use, causing the Function of this switch can be negatively affected.
  • the temperature dependent Switchgear here includes a one-sided Bimetal tongue, which at its clamped end with a first Connection tongue is connected and one at its free end movable contact that carries a connector inside of the switch cooperates, which is integral with the second Connection tongue can be formed.
  • This switch is of a completely different construction than that generic switches, e.g. completely different To make demands on the bimetallic tongue, because that is here Rear derailleur cannot be inserted loosely into the housing, as is the case with the generic switch.
  • the Assembly of this switch is on the one hand because of the complicated, correct feeding and connection of the bimetal tongue difficult with the first connecting tongue, points over it further problems related to the formation of the housing made of PTC material.
  • this object is achieved in the aforementioned Switch solved in that the lower part made of insulating material manufactured and the second counter contact formed as a flat part is that as an integral support part in the form-fitting Lower part is held.
  • the object underlying the invention is achieved in this way completely solved.
  • the lower part can now e.g. as Plastic injection molded part, being made during the The mating contact is directly encapsulated, so that it becomes an integral part of the lower part.
  • Words during the manufacture of this housing part at the same time attaching the mating contact to it Housing part realized with, so that several operations saved can be.
  • the top can also be made of insulating material, and then the first Counter contact as an integral support part in the form-fitting Top is held.
  • the second and, if necessary, the first counter contact thus fulfill, so to speak a double function, on the one hand they serve as electrical Contact part and on the other hand as a carrier part on which the entire Switch or at least: the associated housing part itself is constructed.
  • potted or overmolded counter contact a molded, after outside projecting connector, which preferably as Clamp, crimp or solder connection is formed.
  • the advantage here is that the "assembly" of the mating contact including its via to the outside during the manufacture of the relevant housing part in one operation can be realized integrally. After e.g. Pouring the So there is such a housing part in the housing part
  • the counter contact is arranged on the inside on the bottom, starting from the a connector through the wall of the housing part extends outwards and there as a clamp, crimp or solder connection can be trained.
  • the housing part made of insulating material one by one Has wall through connection channel, which under the Counter contact leads, so that from the outside in the connection channel inserted, electrically conductive connector the counter contact electrically contacted, being in the connection channel preferably retaining means are provided for the connecting part are.
  • the housing part in question lies after its manufacture with an integral counter contact that is now through through the wall, namely through the connecting channel, can be contacted by an insertable connector.
  • This connector can e.g. a stranded wire, a plug contact, a connection lug, a connection lug provided with a strand, etc. his.
  • this inserted connector kept captive, so another advantage of the new Switch is that after its final assembly Contacting or connection technology very easily possible is. It is only necessary in the connection channel of the otherwise fully assembled switch is a stranded wire or a similar connector. to insert the appropriate Realize connection technology.
  • Such switches are often without connections the corresponding manufacturer of the electrical to be protected Devices are delivered as semi-finished products, where they are used accordingly built into the devices and electrically connected to them become.
  • the new switch now enables a very simple one Contact, because the strands already present on the device only have to be inserted into the connection channels, where they snap and contact accordingly.
  • the switching mechanism is one of one resilient washer supported on the second counter contact Carried movable contact includes the first Counter contact cooperates.
  • the advantage here is that a loosely inserted bimetal rear derailleur Can be used, which is made of insulating material aligns the manufactured lower part during final assembly, because both the lower part and the spring washer are round can be trained. This is a great advantage when final assembly of the new switch, it doesn't have to be anything special Pay attention to the angular alignment between the rear derailleur and Lower part to be judged.
  • the spring washer can either a bimetallic snap disk or one Spring washer against the force of a bimetallic snap washer works as this, for example, from the above EP 0 342 441 A2 is known.
  • the counter contact is one metallic ring or disc, preferring it is designed as a stamped sheet metal part, in which the connecting part is integrally formed with the counter contact.
  • disks and rings preferably as sheet metal stampings
  • the overall height is also such trained counter contacts very low, so that in such Switches preferred miniature version can be maintained.
  • the counter contacts can be, for example, as disks or rings of which extending connection parts on precisely these connection parts be strapped so that they are successively by a corresponding Plastic molding machine run where the appropriate Housing part designed so to speak around the mating contact becomes. The connector then extends automatically through a side wall of the housing part.
  • both Housing parts are made of insulating material and each have a counter contact as an integral support part.
  • the advantage here is that the manufacture of both housing parts can be done in the simple manner described above, so that the entire production of the new switch is very simplified and becomes inexpensive.
  • the two made of insulating material Housing parts can then be glued together or are welded, for which purpose e.g. UV light, ultrasound or similar can be used.
  • the connection technology is either via two connecting channels, pushed into the connecting pieces be, or over two through the walls to the outside extending connecting pieces on which clamping blocks, soldering lugs, Crimp connections etc. can be provided.
  • the upper part is made of electrically conductive material is made, the metallic Bottom of this housing part serves as a counter contact and a wall this housing part is flanged so that it Bottom part encloses and holds.
  • the advantage here is that a simple as a second housing part Thermoformed metal part can be used on the second Connection of the new switch is provided.
  • the first connection extends through the wall of the made of insulating material through the first housing part.
  • Another advantage of such a switch is in its mechanical stability due to the metal Manufactured other housing part is determined that the Insulated housing part encloses insofar.
  • Fig. 1 10 denotes a switch in its housing 11 a conventional temperature-dependent switching mechanism 12 is arranged is.
  • the housing 11 comprises a first housing part 14 in the form a lower part 15 and a second housing part 16 in the form an upper part 17, the wall 18 of which is flanged at 19 and encloses the lower part 15.
  • the upper part 17 is made of electrical conductive material 21 made.
  • the upper part 17 works with his Bottom 22 as a fixed counter contact 23 for a movable contact 24, which is arranged on a spring washer 25 of the switching mechanism 12 is.
  • the spring washer 25 is supported on the bottom 26 of the lower part 15 from where another counter contact 27 in the form of a flat Part is arranged.
  • a bimetallic disc 28 slipped in the 1 position shown a temperature below it Response threshold. The temperature of the Bimetallic disc 28, it snaps out of the convex shown Form into a concave shape, based on the bottom 22 of the Upper part 17 and thereby presses the movable contact 24 against the force of the spring washer 25 from the counter contact 23 from.
  • the lower counter contact 27 as a ring 29 made of electrically conductive Material made and has a center hole 30 through which therethrough the movable contact 24 with the bottom 26 of the lower part 15 comes into contact, which is made of insulating material 31 is.
  • a connecting part 32 is formed in one piece with the ring 29, that laterally through a wall 33 of the lower part 15 extends outwards and is available there for contacting stands.
  • Ring 29 and connecting part 32 are sheet metal stampings 34 trained in the manufacture of the lower part 15 in the Insulation material 31 cast or overmolded by this, so that the mating contact 27 is positively held as a carrier part and is therefore an integral part of the lower part 15.
  • the Switch 10 is so to speak built on the counter contact 27.
  • the upper part 17 is made of insulating material 31.
  • conductive disc 38 arranged in one piece with a Connection part 39 is connected and formed as a stamped sheet metal part 40 has been.
  • the connecting part 39 extends laterally through a wall 41 of the upper part 17 through to the outside, where it preferably runs parallel to the connecting part 32.
  • the Wall 41 has a notch 42 through which the connecting part 32 extends outwards.
  • the stamped sheet metal part 40 is also an integral part of the second Housing part 17, with which it is cast during manufacture or was overmolded.
  • the counter contact 23 is a disk 38, so in their central area a contact to the movable contact 24 can be produced if it is in contact with the disc 38 is. It is understood that the two counter contacts 23 and 27 can also have geometrically other suitable shapes. So it is possible, for example, that the counter contacts as Strips are formed in the corresponding housing parts be shed.
  • an abutment is also indicated at 43, which extends radially inwards so far that the bimetallic disc 28 with its edge comes into contact with this abutment if them from the shown low temperature position to their high temperature position jumps around. Because of this abutment Bimetallic snap disk 28 and thus also the spring washer 25 isolated from the first counter contact 23, so that in this Training also the second counter-contact 27 is formed as a disc can be.
  • the abutment 43 is not a circumferential shoulder, but encompasses it only a few "blocks" distributed over a large area, which are inserted of the switching mechanism 12 in the lower part 17 by pressing the allow the resulting tension on the spring washers.
  • FIG. 3 a further housing part 14, 16 is shown, which at the switches from Figures 1 and 2 can be used.
  • This housing part 14, 16 is also made of insulating material 31 manufactured, but has a connecting channel 44, the side leads through the wall 33 under the counter contact 27, which is a ring 29 in the embodiment shown.
  • In the connecting channel 44 are holding means 45 in the form of barbs 46 provided that an inserted connector 47 captive hold.
  • the connecting part 47 can for example a wire, a terminal lug, a crimp connection or with Stranded crimp connection, which after the complete Final assembly of the switch 10 can only be inserted from the outside must to accomplish the connection technology.
  • FIG To equip switch 10 with two housing parts, as shown in Fig. 3.
  • the two housing parts 14, 16 are after inserting the rear derailleur 12 and pushing it together of the two housing parts 14, 16 in a suitable manner glued or welded to one another, for example UV light or Ultrasound can be used.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Manufacture Of Switches (AREA)

Claims (12)

  1. Interrupteur comportant un boítier (11), lequel présente, en tant que première partie (14), une partie inférieure (15) ainsi qu'en tant que deuxième partie (16), une partie supérieure (17) fermant la partie inférieure (15), et comportant un mécanisme de coupure (12) sensible à la température, placé dans la partie inférieure (15), pour lequel est prévu un premier contre-contact (23), sur un fond intérieur (22) de la partie supérieure (17) ainsi qu'un deuxième contre-contact (27) sur un fond intérieur (26) de la partie inférieure (15), le mécanisme de coupure (12) réalisant une liaison électrique conductrice, en fonction de sa température, entre les deux contre-contacts (23, 27) avec lesquels on peut établir un contact de l'extérieur, à travers la partie (14, 16) associée du boítier, et au moins une partie (14, 16) du boítier étant réalisée dans une matière isolante (31),
    caractérisé en ce que la partie inférieure (15) est réalisée dans une matière isolante (31) et le deuxième contre-contact (27) est conformé en élément plat qui est maintenu par complémentarité de forme, en tant qu'élément de support intégré, dans la partie inférieure (15).
  2. Interrupteur selon la revendication 1, caractérisé en ce que le mécanisme de coupure (12) comprend un contact mobile (24) supporté par un disque élastique (25) qui prend appui sur le deuxième contre-contact (27), lequel contact (24) coopère avec le premier contre-contact (23).
  3. Interrupteur selon la revendication 1 ou 2, caractérisé en ce que les deux parties (14, 16) du boítier sont faites d'une matière isolante (31) et comportent chacune un contre-contact (23, 27) en tant qu'élément de support intégré.
  4. Interrupteur selon l'une des revendications 1 à 3, caractérisé en ce que le premier et/ou le deuxième contre-contacts (23, 27) présente(nt) un élément de connexion (32, 39) venu de moulage et dépassant vers l'extérieur.
  5. Interrupteur selon la revendication 4, caractérisé en ce que l'élément de connexion (32, 39) est réalisé en tant que connexion serrée, connexion crimp ou connexion brasée.
  6. Interrupteur selon l'une des revendications 1 à 3, caractérisé en ce que la partie (14, 16) du boítier réalisée dans une matière isolante (31) présente un canal de connexion (44) qui traverse une paroi (33) et qui passe sous le contre-contact (23, 27), de sorte qu'un élément de connexion (47) électriquement conducteur, introduit de l'extérieur dans le canal de connexion (44), vient en contact électrique avec le contre-contact (23, 27).
  7. Interrupteur selon la revendication 6, caractérisé en ce que des moyens de retenue (45) sont prévus dans le canal de connexion (44) pour l'élément de connexion (47).
  8. Interrupteur selon l'une des revendications 1 à 7, caractérisé en ce qu'un contre-contact (27) est une bague métallique (29).
  9. Interrupteur selon l'une des revendications 1 à 8, caractérisé en ce qu'un contre-contact (23) est un disque métallique (38).
  10. Interrupteur selon l'une des revendications 1 ou 3 à 8, caractérisé en ce que la partie supérieure (17) est réalisée dans une matière électriquement conductrice (21), le fond métallique (22) de cette partie (16) du boítier sert de contre-contact (23) et une paroi (18) de cette partie (16) du boítier est rebordée de manière à entourer et maintenir la partie inférieure (15).
  11. Interrupteur selon l'une des revendications 1 à 10, caractérisé en ce qu'au moins un contre-contact (23, 27) est un élément en tôle emboutie (34, 43).
  12. Interrupteur selon l'une des revendications 3 à 11, caractérisé en ce que l'élément de connexion (32, 39) est réalisé d'une seule pièce avec le contre-contact (23, 27).
EP96118727A 1995-12-09 1996-11-22 Interrupteur avec un mécanisme de commutation sensible à la température Expired - Lifetime EP0778599B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19546005A DE19546005C2 (de) 1995-12-09 1995-12-09 Schalter mit einem temperaturabhängigen Schaltwerk
DE19546005 1995-12-09

Publications (3)

Publication Number Publication Date
EP0778599A2 EP0778599A2 (fr) 1997-06-11
EP0778599A3 EP0778599A3 (fr) 1998-05-27
EP0778599B1 true EP0778599B1 (fr) 2001-05-23

Family

ID=7779672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96118727A Expired - Lifetime EP0778599B1 (fr) 1995-12-09 1996-11-22 Interrupteur avec un mécanisme de commutation sensible à la température

Country Status (6)

Country Link
US (1) US5867084A (fr)
EP (1) EP0778599B1 (fr)
AT (1) ATE201530T1 (fr)
DE (2) DE19546005C2 (fr)
ES (1) ES2158214T3 (fr)
PT (1) PT778599E (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19705154C2 (de) * 1997-02-11 1999-06-02 Thermik Geraetebau Gmbh Temperaturabhängiger Schalter mit einem Bimetall-Schaltwerk
JP4312350B2 (ja) * 2000-06-06 2009-08-12 ウチヤ・サーモスタット株式会社 サーマルプロテクタ
CN1428806A (zh) * 2001-12-07 2003-07-09 古河电气工业株式会社 热保护器
JP3996400B2 (ja) * 2002-01-11 2007-10-24 株式会社東海理化電機製作所 電気導通機能を有する弾性シート構造及びプリント回路基板構造
DE102004036117B4 (de) * 2004-07-24 2006-12-14 Tmc Sensortechnik Gmbh Thermobimetallschalter
JP2006092825A (ja) * 2004-09-22 2006-04-06 Fuji Denshi Kogyo Kk 温度スイッチと温度スイッチの組立方法
JP5300840B2 (ja) * 2008-04-18 2013-09-25 タイコエレクトロニクスジャパン合同会社 回路保護デバイス
CN104011823B (zh) * 2011-10-20 2017-05-24 泰科电子日本合同会社 保护装置
DE102011119632B3 (de) * 2011-11-22 2013-04-11 Marcel P. HOFSAESS Temperaturabhängiges Schaltwerk
CN105308710B (zh) * 2013-04-19 2018-08-07 泰科电子日本合同会社 保护装置
JPWO2015029826A1 (ja) * 2013-08-26 2017-03-02 Ｌｉｔｔｅｌｆｕｓｅジャパン合同会社 保護装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2121802C3 (de) * 1971-05-03 1974-10-24 Thermik-Geraetebau Gmbh + Co, 7530 Pforzheim Temperaturwächter
DE2917557C2 (de) * 1979-04-30 1983-12-08 Peter 7530 Pforzheim Hofsäss Wärmeschutzschalter
DE3122899C2 (de) * 1981-06-10 1984-10-11 Peter 7530 Pforzheim Hofsäss Temperaturschalter
DE3710672C2 (de) * 1987-03-31 1997-05-15 Hofsaes Geb Zeitz Ulrika Temperaturwächter mit einem Gehäuse
EP0313674B1 (fr) * 1987-10-27 1993-01-20 Temtech-Temperatur-Technik Hans Peter Bojer Thermo-rupteur bimétallique
DE8806648U1 (de) 1988-05-20 1989-06-22 Hofsäss, Peter, 7530 Pforzheim Temperaturschalteinrichtung
GB9109316D0 (en) * 1991-04-30 1991-06-19 Otter Controls Ltd Improvements relating to electric switches
GB2275823B (en) * 1993-02-18 1996-11-27 Otter Controls Ltd Improvements relating to electric switches

Also Published As

Publication number Publication date
ES2158214T3 (es) 2001-09-01
ATE201530T1 (de) 2001-06-15
US5867084A (en) 1999-02-02
EP0778599A2 (fr) 1997-06-11
PT778599E (pt) 2001-09-28
DE19546005A1 (de) 1997-06-12
EP0778599A3 (fr) 1998-05-27
DE19546005C2 (de) 1999-07-08
DE59606949D1 (de) 2001-06-28

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