Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
  • H01H21/02—Details
  • H01H21/16—Adaptation for built-in fuse
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
  • H01H9/10—Adaptation for built-in fuses
  • H01H9/104—Adaptation for built-in fuses with interlocking mechanism between switch and fuse
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H1/00—Contacts
  • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
  • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
  • H01H1/20—Bridging contacts

Definitions

• the subject of the invention is an electric switch for devices, especially a switch to be built on a lath, whereat the switch can be implemented in the same housing with a fuse, preferably a fuse with a fuse-link
• the technical problem solved by this invention is how to conceive an electric switch with the smallest possible number of simple component parts, which would make possible a simple and quick mounting and at the same time comply with all required standards and quality Furthermore, the product should also be price-effective and competitive
• a handle assembly and a three-membei lever are used, on the latter there is a moving contact supported by three sprmgs
• One fixed contact is also supported by a special spimg and contains a fork which prevents the handle from closing when a fuse-link is not it its place
• Said switch complies with all regulations but it is expensive because it contains elements the production of which is very complicated due to demandmg tools needed A great number of component parts call foi a time-consummg mounting of the switch, which also lenders the product even more expensive
• a novelty and characteristic of the said switch is m that its break handle contains an eccentric wmg, into which only one rod is put and which lies with its opposite end directly in a movmg contact
• the handle also contams a material-locking spring assming the closed position of the handle when the contacts are closed and at the same time provides for the clearance of the iod and the handle in this position so that an appropriate pressure of the closed contacts is assured, the pressure bemg determined by the spring under the movmg contact
• the eccentric wmg m the housing also regulates and positions the rod during its movement and holds it in both extreme positions Only one sprmg operating directly on the moving contact assures the force to preserve the position of the movmg contact m both extreme positions and the pressure pushes both movmg contacts to both fixed contacts
• the switch part of the switch accordmg to the invention comprises only a handle, a rod, contacts and a sprmg as well as shaped wings and guides positioned directly m the housing and a sprmg in the handle
• Such structure based on a simple shape of individual parts requires a simple tool for thermoplastic casting of the housing, the handle and the rod
• the contacts are also designed in a known way, which does not lequire any special manufacturing technology The result is a quick and simple assembling with simple insertion of all elements into one half of the housing and then this part is closed with another half All elements are mutually permanently connected
• Fig 1 a switch for the device with a fuse with a fuse-link in the state of closed contact in cross-section along the connection surface of both halves of the housing
• Fig 2 the same in the state of an open handle, open contact and removed bed of the fuse-link
• Fig 3 the same m the state of closmg the handle or switch-on
• Fig 4 a switch for devices (without a fuse) m the state of closed contact and m cross-section along the connection surface of both halves of the housmg
• the switch for devices which can be arranged with a fuse with a fuse-link or without a fuse, basically consists of a housmg 1 having two equal halves 2, whereat the housings differ in that the housing with the fuse is extended for the width of a bed 3 for a fuse-link 4
• the arrangement of the bed 3 for the fuse-link 4 is neither an object of this invention nor has any influence on it
• it is executed in compliance with standards and is preferably arranged to be placed on a lath which is not shown on diawings, by means of a groove 5 at its rear side
• the halves 2 of the housmg 1 have beds 6, 7, 8 in the shape of nbs for fixed contacts 9, 10 and a contact 1 1 of the fuse-link 4
• a moving contact 12 is controlled in rib guides 13 and supported by a spring 14
• the movmg contact 12 is directly controlled by a rod 15, which is controlled in its axial direction in rib guides 16 lying on the halves of the housing 1 in the area of the moving contact 12
• the rod 15 leaches into a break handle 17, which is used to manually bieak the switch
• the handle 17 has a bearing on an axle 18 lying in both halves 2 in the housing 1 In lelation to the axle 18, the handle has an eccentric circle arch 19 forming an angle of approximately 45° and is limited by limit fences 20 and 20' on both sides
• the rod 15 near the handle 17 is additionally guided in each half 2 of the housing 1 with an aich-shaped rib 21, the centre of which lies in the centre of the axle 18
• Each nb 21 lies so as to reach into an arch-shaped slot 22
• the arch 19 is eccentrically positioned with respect to the axle 18 and to the wmg 26 in such a way that in the position of the handle 17 with the electric contacts open, one end of the arch 19 lies near the limit fence 20 between the indentation 27 and the axle 18, the opposite end of the arch 19 near the limit fence 20' lies on the imaginary arch extension of the wing 26 via the indentation 27
• the rod 15 fits into the indentation 27 and the handle 17 is ieleased off the pressure of the spring 14 via the lod 15
• the handle 17 and the housing 1 have holes 28 foi fastenmg elements which are not shown in the drawings
• the switch is opened by turning the handle 17 fiom its final position when it lies inside the hah es 2 of the housmg 1 (Fig 1), whereby a seal, which is not shown in the drawings, can be broken
• the projection 24 of the handle 17 fust overcomes the projection 25 on the housing 1, which gives the feeling that the handle 17 is in the working field
• the limit fence 20 leans against the rod 15 guided by the rib 21 and the circle aich 19 of the handle 17
• the moving contact 12 tempoianly moves away fiom the fixed contacts 9, 10 and bieaks the circuit
• the rod 15 moves along the wing 26 until it is pushed to the indentation 27 neai the wmg 26 Due to the position of the arch 19 between the indentation 27 and the axle 18, the rod slips off the wmg 26 into the indentation in which it remains due to the force of the spring 14
• the handle 17 In its switch-off position the handle 17 releases the bed 3 of the fuse 4, so that it can be removed without any tool m order to replace the fuse
• the bed 3 of the fuse 4 there is a sprmg tooth 29 arranged on the side of the handle 17 which, when the bed 3 is removed from the housmg, leans against the tooth of the handle 17 and prevents a direct removal of the bed 3 from the housing 1 Only by bending the spring tooth 29 by means of a small screw-driver or a similar tool, the bed 3 can be entirely taken out of the housmg 1
• the handle 17 When switching on the switch (Fig 3), the handle 17 is turned in the opposite direction When the handle 17 has been turned freely, so that the limit fence 20' leans against the top of the rod 15, the eccentric arch 19 lifts the rod 15 from the indentation 27 If the handle 17 is further turned, the arch 19 neai the limit fence 20' of the handle 17 moves the rod 15 so that the latter travels along the wmg 26 In its unbalanced position on the arch 19 it temporarily trips over the bar 15 due to the opeiation of the spring 14 from position on the arch 19 at the limit fence 20' into the position on the arch 19 near the opposite limit fence 20 and momentarily closes the electric contacts 9, 10 via the contact 12 With the movmg contact 12 positioned on fixed contacts 9, 10 and with the spring 14 operating, the rod 15 and the handle 17 get rid of the force of the spring 14 which assures a long life and thus the required minimum number of switch-ons and switch-offs of the switch

Landscapes

• Switch Cases, Indication, And Locking (AREA)
• Relay Circuits (AREA)
• Keying Circuit Devices (AREA)
• Breakers (AREA)
• Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
• Push-Button Switches (AREA)
• Switches With Compound Operations (AREA)
• Fuses (AREA)
• Tumbler Switches (AREA)

Priority Applications (11)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20432136

Family Applications (1)

Country Status (17)

Cited By (7)

Families Citing this family (5)

Citations (3)

• 1997
  • 1997-10-02 SI SI9700256A patent/SI9700256A/sl not_active IP Right Cessation
• 1998
  • 1998-09-30 YU YU19400A patent/YU19400A/sh unknown
  • 1998-09-30 DK DK98944425T patent/DK1019929T3/da active
  • 1998-09-30 BR BR9812709-8A patent/BR9812709A/pt not_active Application Discontinuation
  • 1998-09-30 PL PL98339653A patent/PL339653A1/xx unknown
  • 1998-09-30 HU HU0004530A patent/HUP0004530A3/hu unknown
  • 1998-09-30 CZ CZ20001176A patent/CZ297167B6/cs not_active IP Right Cessation
  • 1998-09-30 AU AU91964/98A patent/AU9196498A/en not_active Abandoned
  • 1998-09-30 ES ES98944425T patent/ES2175772T3/es not_active Expired - Lifetime
  • 1998-09-30 SK SK479-2000A patent/SK286018B6/sk unknown
  • 1998-09-30 WO PCT/SI1998/000020 patent/WO1999018589A1/en active IP Right Grant
  • 1998-09-30 DE DE69803997T patent/DE69803997T2/de not_active Expired - Fee Related
  • 1998-09-30 AT AT98944425T patent/ATE213868T1/de not_active IP Right Cessation
  • 1998-09-30 IL IL13537298A patent/IL135372A0/xx unknown
  • 1998-09-30 EP EP98944425A patent/EP1019929B1/en not_active Expired - Lifetime
  • 1998-10-02 MY MYPI98004524A patent/MY124173A/en unknown
• 2000
  • 2000-03-30 HR HR20000178A patent/HRP20000178A2/hr not_active Application Discontinuation

Patent Citations (3)

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