EP0708458A1 - Dispositif de commutation avec contact - Google Patents

Dispositif de commutation avec contact Download PDF

Info

Publication number
EP0708458A1
EP0708458A1 EP95111951A EP95111951A EP0708458A1 EP 0708458 A1 EP0708458 A1 EP 0708458A1 EP 95111951 A EP95111951 A EP 95111951A EP 95111951 A EP95111951 A EP 95111951A EP 0708458 A1 EP0708458 A1 EP 0708458A1
Authority
EP
European Patent Office
Prior art keywords
switching device
housing
pole tube
switching
contact
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.)
Granted
Application number
EP95111951A
Other languages
German (de)
English (en)
Other versions
EP0708458B1 (fr
Inventor
Heinz Jacobus
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.)
BSO Steuerungstechnik GmbH
Original Assignee
BSO Steuerungstechnik GmbH
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 BSO Steuerungstechnik GmbH filed Critical BSO Steuerungstechnik GmbH
Publication of EP0708458A1 publication Critical patent/EP0708458A1/fr
Application granted granted Critical
Publication of EP0708458B1 publication Critical patent/EP0708458B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures

Definitions

  • the invention relates to a switching device, in particular for actuating valves, with electrically mass-conducting parts, such as a housing and a coil former arranged therein, in which a pole tube with a switching part is guided and which is provided with a winding of a conductor which is connected to a power source by means of a connecting device can be connected.
  • Such switching devices are known and freely available on the market. If the conductor winding of the switching device is connected to a current or voltage source, with the excitation of the coil, the switching part, which is also referred to as a magnet armature and is arranged to be longitudinally displaceable in the pole tube, is actuated and, in this way, counter to the force of a spring accumulator or the like. a valve is opened, the switching part moving back into its unactuated rest position when the power supply is switched off, usually under the influence of this energy store.
  • the connection device has in the known Switching devices on two connecting pins which can be plugged into a power supply system in a manner comparable to the function of a plug for establishing the power connection.
  • the object of the invention is to improve this known switching device in such a way that any danger due to an electric shock is excluded for an operator when handling the switching device.
  • a relevant object is achieved by a switching device having the features of claim 1.
  • the pole tube is conductively connected via contacting with the mass-carrying parts of the device at least until the connection device is separated from the power source is one secure earth connection from the housing to the pole tube is reached, so that the danger for the operator of receiving an electric shock is reliably avoided even in the event of malfunctions or a failure of the switching device.
  • This security also includes a possible replacement process in which the pole tube with the switching part remains with the valve device and the housing is manually removed from the pole tube with the bobbin and the connecting device.
  • the contacting is arranged at the end of the device opposite the connecting device and the ground connection exists between the pole tube and the housing as a ground-carrying part.
  • the pole tube remains connected to the housing in a ground-leading manner via the contacting until the connection device has been reliably disconnected from the power source.
  • the contact has a dowel pin which can be inserted into a bore in the rear wall of the housing and which projects with a projection into the receiving space provided for guiding the pole tube within the device. Due to the inherent tension of the dowel pin, this ensures secure contacting, which is also inexpensive to manufacture.
  • the switching device is explained in more detail below with reference to the drawing.
  • the switching device has a housing 10 made of a metallic, electrically conductive material.
  • a coil body 12 is arranged in the housing 10, in which a pole tube with a switching part is guided in the usual and therefore not shown and described manner.
  • the coil former 12 is provided with a conductor winding 14, the conductor of the winding being connectable to a current source (not shown) by means of a connecting device 16.
  • the connection device has two contacts in the form of connecting pins 18 for the connection to a power source.
  • the switching device can have sealing means, for example in the form of an O-ring 22, at the ends and facing the receiving space 20 for the pole tube.
  • at least the conductor winding 14 can be cast or extrusion-coated with a plastic compound 24.
  • the structure of a switching device described in this regard is known and is therefore no longer explained in more detail here.
  • the contact shows one 5 and 6, which is designed in the manner of a clamping sleeve.
  • the metal dowel pin 28, which is made of spring steel, for example, can be a standard part, according to the DIN standard 7346, and have ends 30 chamfered by an angle of 30 °.
  • the roll pin 28 is of hollow cylindrical design and is provided with a longitudinal slot 32. The dowel pin 28 can be compressed using suitable and known handling tools along its adjacent edges delimiting the longitudinal slot 32 and inserted into a longitudinal bore 34 provided for this purpose in the rear wall 36 of the housing.
  • the dowel pin 28 Under the internal tension of the spring steel, the dowel pin 28 then lies firmly against the bore wall and protrudes with a certain projection into the receiving space 20 provided for the pole tube. This supernatant can best be seen in Fig. 5.
  • the longitudinal slot 32 is arranged in the inserted state of the dowel pin 28 pointing downward and the angle shown in FIG. 5 with a double arrow between the longitudinal axis of the longitudinal slot 32 and the vertical through the center of the dowel pin 28 is approximately 45 °.
  • the protrusion is preferably selected on the one hand such that a reliable contact is always made between the housing 10 and the pole tube (not shown); on the other hand, the insertion of the pole tube into the receiving space 20 is not difficult.
  • the addressed longitudinal bore 34 is thus arranged in the rear wall 36 in such a way that an opening remains towards the receiving space 20, which opening can be closed on the circumferential side by the roll pin 28 with its projection. If the longitudinal slot 32 points with the mentioned angle in the direction of the receiving space 20, the two free ends of the dowel pin 28, which delimit the longitudinal slot 32, can be moved relatively easily against one another under the influence of the pole tube to be inserted, but nevertheless reliable contacting at all times is reached with the pole tube.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Push-Button Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP95111951A 1994-10-19 1995-07-29 Dispositif de commutation avec contact Expired - Lifetime EP0708458B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9416832U DE9416832U1 (de) 1994-10-19 1994-10-19 Schaltvorrichtung mit Kontaktierung
DE9416832U 1994-10-19

Publications (2)

Publication Number Publication Date
EP0708458A1 true EP0708458A1 (fr) 1996-04-24
EP0708458B1 EP0708458B1 (fr) 1999-06-02

Family

ID=6915083

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95111951A Expired - Lifetime EP0708458B1 (fr) 1994-10-19 1995-07-29 Dispositif de commutation avec contact

Country Status (3)

Country Link
EP (1) EP0708458B1 (fr)
DE (2) DE9416832U1 (fr)
ES (1) ES2134381T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10213696C1 (de) * 2002-03-27 2003-10-30 Pierburg Gmbh Elektromagnetische Stellvorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3152325A1 (de) * 1981-04-09 1983-02-03 A. u. K. Müller GmbH & Co KG, 4000 Düsseldorf Elektromagnetventil
DE3546401A1 (de) * 1985-12-31 1987-07-02 Staiger Steuerungstech Magnetkopf
EP0577956A1 (fr) * 1992-07-07 1994-01-12 WABCO STANDARD GmbH Boîtier pour solenoide
JPH06112053A (ja) * 1992-09-25 1994-04-22 Toshiba Corp 樹脂モールド機器及びその製造方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309771C1 (de) * 1983-03-18 1984-07-12 Murrelektronik GmbH, 7155 Oppenweiler Gehäuse zur Aufnahme der zur Beschaltung einer Magnetspule eines Hydraulikventils oder dgl. erforderlichen elektrischen Bauteile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3152325A1 (de) * 1981-04-09 1983-02-03 A. u. K. Müller GmbH & Co KG, 4000 Düsseldorf Elektromagnetventil
DE3546401A1 (de) * 1985-12-31 1987-07-02 Staiger Steuerungstech Magnetkopf
EP0577956A1 (fr) * 1992-07-07 1994-01-12 WABCO STANDARD GmbH Boîtier pour solenoide
JPH06112053A (ja) * 1992-09-25 1994-04-22 Toshiba Corp 樹脂モールド機器及びその製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 382 (E - 1580) 19 July 1994 (1994-07-19) *

Also Published As

Publication number Publication date
ES2134381T3 (es) 1999-10-01
DE9416832U1 (de) 1994-12-08
EP0708458B1 (fr) 1999-06-02
DE59506090D1 (de) 1999-07-08

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