EP0730285B1 - Boítier isolant - Google Patents

Boítier isolant Download PDF

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Publication number
EP0730285B1
EP0730285B1 EP96100737A EP96100737A EP0730285B1 EP 0730285 B1 EP0730285 B1 EP 0730285B1 EP 96100737 A EP96100737 A EP 96100737A EP 96100737 A EP96100737 A EP 96100737A EP 0730285 B1 EP0730285 B1 EP 0730285B1
Authority
EP
European Patent Office
Prior art keywords
insulating housing
switch
accordance
contact
electrical
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
EP96100737A
Other languages
German (de)
English (en)
Other versions
EP0730285A1 (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 PETER
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
Priority claimed from DE19507488A external-priority patent/DE19507488C2/de
Priority claimed from DE19545996A external-priority patent/DE19545996C2/de
Application filed by Individual filed Critical Individual
Publication of EP0730285A1 publication Critical patent/EP0730285A1/fr
Application granted granted Critical
Publication of EP0730285B1 publication Critical patent/EP0730285B1/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 the use of an insulating housing with an interior to accommodate a mechanical and / or switch to be electrically protected with a temperature-dependent switching mechanism, the switch two has electrically conductive pads over which a electrical connection of the switch.
  • the well-known temperature monitor is a very expensive one Component, since the connection technology is usually only can be done by hand.
  • a switch with a temperature-dependent switching mechanism such as it is used, for example, for the purpose of the present invention can be known from DE 29 17 482 C2.
  • the desk has a closed housing in which the rear derailleur is arranged.
  • the housing includes an electrically conductive Cover and an electrically conductive lower part, the opposite the lid is insulated.
  • the electrical connection of the switch takes place in the installed state directly over the lid and that Lower part.
  • Such switches which are also called temperature monitors, serve the operating temperature and / or the operating current of the electrical consumer to be protected. If the operating temperature of the consumer exceeds one certain limit, the switch that opens to that Purpose in line with the consumer in the supply circuit must be switched. By parallel and / or provided on the switch Series resistors can hold such switches be trained and, if necessary, even if the current switching is too high, if the series resistance heats up too much.
  • Household appliances in particular are becoming more and more Devices used with electrical consumers, such as. B. Suds pumps for washing machines, motors for compressors Fridges and freezers, transformers for electrical Devices with a voltage different from the mains voltage operated, fan motors and heating coils for hair dryers etc.
  • temperature monitors used which has its own housing or support part have and be retrofitted to the consumer.
  • connection element of the temperature monitor is with a corresponding connection element of the consumer connected, wherein the second connection element of the temperature monitor and the second Connection element of the consumer then for electrical supply serve the consumer, who is now in line with the temperature monitor is switched.
  • Such temperature monitors are usually special developments, each adapted to the consumer to be protected Need to become. It is not just about the connection technology but especially on the good thermal contact attention to the consumer to be monitored. This leads to, that the cost of designing and manufacturing such Temperature monitors are very high. Naturally transferred this cost also depends on the final cost of the temperature monitor protected consumers.
  • a temperature monitor is known from DE 90 04 941 U mentioned at the beginning known, which has a frame made of plastic an electrically conductive one from above and one from below Contact plate is snapped on.
  • a bimetal rear derailleur arranged, which is clamped between the contact plates is. Contact is made here by creating the upper one Contact plates on the lid and the lower contact plate to the bottom of the rear derailleur.
  • the upper one is first Contact plate snapped onto the frame before from the The rear derailleur is inserted into the frame. Finally, the bottom contact plate is placed from below, so that the rear derailleur is jammed between the two contact plates is held, the locking projections of the frame part the Form abutments for the clamping forces.
  • Temperature monitor is disadvantageous in that the mechanical Tolerances of the sheet metal parts and the plastic frame are very small must be applied so that the necessary contact forces can be.
  • these temperature monitors are mass-produced are the sheet metal parts and plastic frames in very large Quantity produced, the tolerances not always being met become. Furthermore, these items are in large lots delivered to the manufacturers, which always happens that sheet metal parts in the lot during transport or Bend pouring processes.
  • Another disadvantage of the known temperature monitor is in connection with the required contact security between the bimetal rear derailleur and the ones that form the external connections Contact plates. Because the contact forces through unbent tabs the contact plates are applied, this contacting is sufficient often not the long-term requirements, because the high loads in everyday operation, e.g. B. by continuous vibrations by Devices protected by temperature monitors weaken the snap-in connection. Especially when the tolerances of the mated Contact reliability can add up to components in an unfavorable manner are no longer present after a short period of operation.
  • the insulating housing at least has an opening through which contact parts of a Holder or an electrical consumer to be protected get directly into contact with the two connection surfaces and pinch the switch between them to effect both the electrical connection to the switching mechanism and its mechanical hold.
  • the insulating housing is now designed so that the Switch only needs to be inserted, whereupon the insulating housing then on contact parts of an electrical consumer is postponed. These contact parts come into contact with the two connection surfaces and thus contact that in the Temperature-dependent switching mechanism provided inside the switch. Inserting the switch in the insulating housing can be mechanical take place, it is also possible that the switch with a is molded around a correspondingly shaped insulating housing. Not only the production but also the final assembly and installation on the electrical consumer to be protected or on one the holder provided for this is very simple, can be automated and are therefore inexpensive and fail-safe.
  • the electrical consumer mentioned is so equipped that two contact parts a receptacle for the Form switches, one of the two connection elements and one of the two contact parts with the consumer and the other Contact part are connected to the other connection element.
  • the insulating housing makes it extremely simple Connection technology created that inexpensive and with little Committee is to be realized.
  • the insulating housing is a Has inner profile through which the inserted contact parts be pressed onto the connection surfaces.
  • the advantage here is that not the spring force of the contact parts is crucial for contact security, but that the Contacting through the inner profile of the insulating housing at least is supported.
  • the insulating housing at least has a locking element, via which it is associated with an Locking element locked on one of the contact parts.
  • the insulating housing has an accommodated one Switch holds captive, which is why it prefers has snap-on locking means which have a received Keep the switch captive.
  • the advantage here is that of an insulating housing and switch existing temperature monitor can be preassembled
  • the switch only has to be inserted into the insulating housing, where it is held captive by the overpressed locking elements becomes.
  • Such temperature monitors can then be used as bulk goods be transported because the switch is mechanically through it surrounding insulating housing is protected. Of course can this push the switch into the insulating housing can be accomplished by manufacturing machines.
  • the insulating housing Has guide channels or grooves for the contact parts, wherein the guide channels or grooves preferably one in the longitudinal direction inclined guide surface to run on the interior or a have guide surface curved in the longitudinal direction.
  • the guide surfaces advantageously provide one corresponding contact pressure that the contact parts on the Exercise the contact surfaces of the switch.
  • the leadership channels and / or grooves have the further advantage that the Contact parts are guided when the insulating housing is pushed on, so that they cannot kink or break off.
  • the insulating housing is another Has opening for pushing the switch into the interior, the further opening preferably perpendicular to the guide channels and / or grooves.
  • This measure has the advantage that the switch by the contact parts inserted into the guide channels or grooves not only contacted but also falling out of the Insulated housing is prevented. It can either go all the way further locking means are dispensed with, the switch in one do not hold the insulating housing that has not yet been installed on a consumer, or it is possible to use locking means that are easy to press over be that only during transportation one not yet insulated housing for a consumer secure mechanical hold of the switch inside the insulating housing to care. Overall, this not only simplifies it the construction of the new insulating housing, the individual required assembly steps will also be very simplified.
  • the insulating housing is complete is made of insulating material and preferably a plastic injection molded part is.
  • the advantage here is that the insulating housing in a very simple, inexpensive spraying process made from one piece can be.
  • connection lugs are on which a new insulating housing with switch included therein, so that very inexpensive, also otherwise used connecting lugs used can be to the existing of insulating housing and switch Contact temperature monitor electrically and mechanically to keep.
  • the insulating housing can be designed that the recorded switch is kept loose or by the locking means is firmly clamped. Only through that Inserting the contact parts or connecting lugs of a holder or electrical consumer in the insulating housing the switch contacts, the insulating housing itself through the inner shape ensures that the contact parts on the Terminal pads of the switch pressed and there immovable being held.
  • a new insulating housing is generally designated 10, the one interior 11 for receiving a switch 12 with a temperature-dependent switching mechanism.
  • Switch 12 has an upper pad 13 and a lower one Pad 14, which is part of an electrically conductive Cover part 15 or an electrically conductive lower part 16 are, compared to the cover part 15 in a known manner is isolated.
  • Cover part 15 and lower part 16 form an encapsulated Housing 17 in which the temperature-dependent switching mechanism is arranged in a known manner.
  • the insulating housing 10 has an opening 18 in which pushable locking means 19 arranged in the form of locking lugs 21 and 22 are.
  • the switch can pass through this opening 18 12 are pushed into the interior 11, where it then passes through the latches 21 and 22 are held captive but loose.
  • a holder 23 is shown on the right, part of a Consumer is or is suitable with one to be protected Is to connect consumers.
  • the holder 23 has two contact parts 24, 25, which are terminal lugs 26, 27 here.
  • the Connection tabs 26, 27 face each other with their broad sides to and have a clear distance 28 from each other, which at 28 'indicated thickness or height of the switch 12 corresponds.
  • the opening 18 of the insulating housing 10 on the other hand has one clear width 29, which is dimensioned so that the connecting lugs 26, 27 then also inserted into the insulating housing 10 if the switch 12 is located in the interior 11 located.
  • a locking element 31 arranged in the form of a recess with which a further locking element 32 cooperates on the connecting lug 27 in such a way that one pushed onto the connecting lugs 26, 27 Insulating housing 10 is held captive.
  • Two further locking elements 33, 34 are in the cover part 15 of the Switch 12 or arranged on the connecting lug 26 such that another captive bracket of the insulating housing 10 via the switch 12 held captive therein Holder 23 is realized.
  • the terminal lug 26 on the cover part 15 After the assembly just described is done the terminal lug 26 on the cover part 15, while the Terminal lug 27 abuts the lower part 16.
  • the insulating housing 10 Guide bevels 35, 36 which are inclined into the interior 11 run. Through these guide slopes 35, 36 are the Connection lugs 26, 27 pressed onto the connection surfaces 13, 14, so that the electrical contact between these parts continues is improved. Because of the applied forces, this becomes However, the insulating housing 10 is not pushed away from the holder 23 again. because of the locking elements 31, 32, 33, 34 a captive Bracket is realized, as already described above has been.
  • the insulating housing 10 is a one-piece injection molded plastic part 39, as a corresponding mass article very much is inexpensive to implement.
  • a further insulating housing 41 is shown, in the Interior 42 a switch 12 is indicated.
  • the switch 12 is held firmly in the interior 42 by a latch 43 which acts like the locking lugs 21, 22 in the insulating housing 10.
  • a latch 43 acts like the locking lugs 21, 22 in the insulating housing 10.
  • the interior 42 can then pass through a lid 45 can be closed.
  • the insulating housing 41 also has guide channels 46, 47, into which the connecting lugs 26, 27 are inserted.
  • the upper Guide channel 46 has a curved guide surface 48 through which the terminal lug 26 when inserted into the Guide channel 46 is bent downward in Fig. 3 so that it with its locking element 34 through a locking opening 49 comes into contact with the cover part 15 of the switch 12. On this way not only becomes a mechanical latching but at the same time a very good electrical contact is achieved.
  • a locking part 51 is provided, which when pushed Insulating housing 41 with the lower part 16 of the switch 12 in contact reached. To insert the thickened connecting lug 27 in the guide channel 47, this has one enlarged insertion opening 50.
  • the guide channels 46, 47 end in grooves 52, 53 in which the Terminal lugs 26, 27 with their front ends 54, 55 for lying come when the insulating housing 41 is fully pushed open has been. These grooves 52, 53 ensure that also with strong vibrations or other mechanical stress the electrical contact between the connecting lugs 26, 27 and the switch 12 is retained.
  • the inserted contact parts 24, 25 also provide for a mechanical fit of the switch 12, so that on the Latch 43 could also be dispensed with if switch 12 and insulating housing 41 are to be stored separately.
  • the holder 23 is on arranged a consumer 57, the two connection elements 58, 59 for connection to an external circuit. While the connecting element 59 directly to the electrical consumer 57 is connected, the connection element 58 is in electrical connection with the connecting lug 27.
  • the second Terminal lug 26, however, is directly connected to the electrical Consumers 57 connected. Due to the chosen arrangement is a switch 12 received between the connecting lugs 26, 27 in series with the consumer 57 between the connection elements 58, 59 switched. It should also be mentioned that the connecting lugs 26, 27 with their broad sides 61, 62 facing each other.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)

Claims (10)

  1. Utilisation d'un boítier isolant comportant un espace intérieur (11, 42) pour recevoir un interrupteur (12) à protéger mécaniquement et/ou électriquement, avec un mécanisme de commutation sensible à la température, l'interrupteur (12) présentant deux surfaces de branchement (13, 14) conductrices électriquement, par l'intermédiaire desquelles s'effectue un branchement électrique de l'interrupteur (12),
       caractérisée en ce que le boítier isolant (10, 41) présente au moins une ouverture (18, 50) à travers laquelle des parties de contact (24, 25) d'un support (23) ou d'un utilisateur électrique (57) à protéger arrivent directement en contact avec les deux surfaces de branchement (13, 14) et enserrent entre elles l'interrupteur (12), afin d'assurer à la fois la connexion électrique avec le mécanisme de commutation et le maintien mécanique de celui-ci.
  2. Utilisation selon la revendication 1, caractérisée en ce que le boítier isolant (10, 41) présente un profilé intérieur à travers lequel les parties de contact (24, 25) enfoncées sont appuyées sur les surfaces de branchement (13, 14).
  3. Utilisation selon la revendication 1 ou 2, caractérisée en ce que le boítier isolant (10, 41) présente au moins un élément d'encliquetage (31, 49) par l'intermédiaire duquel il s'enclenche avec un élément d'encliquetage (34) associé sur l'une des parties de contact (24).
  4. Utilisation selon l'une des revendications 1 à 3, caractérisée en ce que le boítier isolant tient de manière imperdable un interrupteur (12) logé en lui.
  5. Utilisation selon la revendication 4, caractérisée en ce que le boítier isolant présente des moyens d'encliquetage compressibles (21, 22, 43) qui tiennent de manière imperdable un interrupteur logé (12).
  6. Utilisation selon l'une des revendications 1 à 5, caractérisée en ce que le boítier isolant (10, 41) présente des canaux et/ou des rainures de guidage (37, 38 ; 46, 47) pour les parties de contact (24, 25).
  7. Utilisation selon la revendication 6, caractérisée en ce que les canaux et/ou rainures de guidage (37, 38 ; 46, 47) présentent une surface de guidage (35, 36, 48) s'étendant dans le sens longitudinal inclinée en direction de l'intérieur (11, 42).
  8. Utilisation selon la revendication 6, caractérisée en ce que la surface de guidage (48) est cintrée dans la direction longitudinale.
  9. Utilisation selon l'une des revendications 1 à 8, caractérisée en ce que, sur le boítier isolant (10, 41), il est prévu une autre ouverture (44) pour enfoncer l'interrupteur (12) dans l'intérieur (42).
  10. Utilisation selon les revendications 6 et 9, caractérisée en ce que l'ouverture supplémentaire (44) s'étend perpendiculairement aux canaux et/ou rainures de guidage (46, 47).
EP96100737A 1995-03-03 1996-01-19 Boítier isolant Expired - Lifetime EP0730285B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19507488 1995-03-03
DE19507488A DE19507488C2 (de) 1995-03-03 1995-03-03 Halter für ein Bimetall-Schaltwerk sowie Temperaturwächter mit einem Bimetall-Schaltwerk
DE19545996A DE19545996C2 (de) 1995-03-03 1995-12-09 Isoliergehäuse und elektrischer Verbraucher
DE19545996 1995-12-09

Publications (2)

Publication Number Publication Date
EP0730285A1 EP0730285A1 (fr) 1996-09-04
EP0730285B1 true EP0730285B1 (fr) 1999-10-20

Family

ID=26013000

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96100737A Expired - Lifetime EP0730285B1 (fr) 1995-03-03 1996-01-19 Boítier isolant

Country Status (5)

Country Link
US (1) US5699033A (fr)
EP (1) EP0730285B1 (fr)
AT (1) ATE185925T1 (fr)
DK (1) DK0730285T3 (fr)
ES (1) ES2139963T3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3739525B2 (ja) * 1996-12-27 2006-01-25 富士通株式会社 可変遅延回路及び半導体集積回路装置
DE19705410C2 (de) * 1997-02-13 1999-02-11 Thermik Geraetebau Gmbh Temperaturabhängiger Schalter mit Haltebügel
US6781504B2 (en) * 2001-08-14 2004-08-24 Honeywell International, Inc. Thermal switch adapter
ES2350367T3 (es) 2006-07-11 2011-01-21 Thermik Gerätebau GmbH Capuchón de conexión y conmutador con capuchón de conexión.
US7808363B1 (en) * 2008-01-22 2010-10-05 Cantalice John J Overheat protection for pump
CN201435503Y (zh) * 2009-01-06 2010-03-31 深大宇电器(深圳)有限公司 一种过温过电流保护电源插头
DE102009030353B3 (de) * 2009-06-22 2010-12-02 Hofsaess, Marcel P. Kappe für einen temperaturabhängigen Schalter sowie Verfahren zur Fertigung eines temperaturabhängigen Schalters
DE102009039948A1 (de) * 2009-08-27 2011-03-03 Hofsaess, Marcel P. Temperaturabhängiger Schalter

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031565A (en) * 1959-06-08 1962-04-24 Texas Instruments Inc Condition-responsive control device
DE2917482C2 (de) * 1979-04-30 1982-11-25 Peter 7530 Pforzheim Hofsäss Übertemperaturschutzschalter
DE8607370U1 (fr) * 1986-03-18 1987-04-16 Hofsaess, Peter, 7530 Pforzheim, De
DE8708064U1 (fr) * 1987-06-06 1987-10-15 Hanning Elektro-Werke Gmbh & Co, 4811 Oerlinghausen, De
DE3817080A1 (de) * 1987-06-06 1988-12-15 Hanning Elektro Werke Temperaturueberwachungseinrichtung fuer spaltpolmotoren
US4795997A (en) * 1987-11-02 1989-01-03 North American Philips Corporation Thermostat for board mounting
DE9004943U1 (fr) * 1990-05-01 1991-05-29 Hofsaess, Peter, 7530 Pforzheim, De
DE9004941U1 (fr) * 1990-05-01 1991-05-29 Hofsaess, Peter, 7530 Pforzheim, De
DE9214543U1 (fr) * 1992-10-27 1992-12-17 Thermik Geraetebau Gmbh, 7530 Pforzheim, De
DE9301874U1 (fr) * 1993-02-10 1993-07-08 Bosch-Siemens Hausgeraete Gmbh, 8000 Muenchen, De
JP3421421B2 (ja) * 1993-06-15 2003-06-30 マブチモーター株式会社 小型モータ

Also Published As

Publication number Publication date
US5699033A (en) 1997-12-16
ATE185925T1 (de) 1999-11-15
DK0730285T3 (da) 1999-12-27
ES2139963T3 (es) 2000-02-16
EP0730285A1 (fr) 1996-09-04

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