EP2919246B1 - Rotor shaft module support for a rotor shaft of a compact circuit breaker, rotor shaft for a compact circuit breaker, compact circuit breaker and method for producing a rotor shaft module for a rotor shaft of a compact circuit breaker - Google Patents
Rotor shaft module support for a rotor shaft of a compact circuit breaker, rotor shaft for a compact circuit breaker, compact circuit breaker and method for producing a rotor shaft module for a rotor shaft of a compact circuit breaker Download PDFInfo
- Publication number
- EP2919246B1 EP2919246B1 EP14196006.2A EP14196006A EP2919246B1 EP 2919246 B1 EP2919246 B1 EP 2919246B1 EP 14196006 A EP14196006 A EP 14196006A EP 2919246 B1 EP2919246 B1 EP 2919246B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor shaft
- module
- circuit breaker
- insert element
- case circuit
- 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.)
- Not-in-force
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
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- 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
- H01H1/2041—Rotating bridge
- H01H1/2058—Rotating bridge being assembled in a cassette, which can be placed as a complete unit into a circuit breaker
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
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- 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
-
- 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
- H01H1/2041—Rotating bridge
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- 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
- H01H2009/0094—Details of rotatable shafts which are subdivided; details of the coupling means thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2205/00—Movable contacts
- H01H2205/002—Movable contacts fixed to operating part
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/056—Modular conception
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
- H01H71/0235—Contacts and the arc extinguishing space inside individual separate cases, which are positioned inside the housing of the circuit breaker
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/025—Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts
- H01H71/0257—Strength considerations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49105—Switch making
Definitions
- Rotor shaft module for a rotor shaft of a molded case circuit breaker rotor shaft for a molded case circuit breaker, molded case circuit breaker and method for producing a rotor shaft module for a rotor shaft of a molded case circuit breaker
- the present invention relates to a rotor shaft module for a rotor shaft of a molded case circuit breaker, comprising a module body of an electrically insulating first material, wherein the module body has a receptacle for a contact element of the molded case circuit breaker and the rotor shaft module has at least one coupling device for connection to a counter coupling device of another rotor shaft module. Furthermore, the invention relates to a rotor shaft for a molded case circuit breaker, a compact circuit breaker with a rotor shaft and a method for producing a rotor shaft module for a rotor shaft of a molded case circuit breaker.
- MCCB Molded Case Circuit Breaker
- Such compact circuit breakers allow in particular the switching of high currents or powers. Since such molded case circuit breakers are often designed with safety devices such as overload and / or short-circuit protection, known molded case circuit breakers also increase safety when switching such currents.
- the power is usually provided in multiple phases, each with one line for one phase. However, when a fault such as an overload or a short circuit occurs in only one of these phases, all phases that are switched by a common molded case circuit breaker must be disconnected.
- Such compact circuit breaker therefore have a rotor shaft, wherein the rotor shaft of individual Rotor shaft modules is constructed.
- a rotor shaft module For each phase of the current to be conducted, a rotor shaft module is provided, wherein the rotor shaft module has a contact element which is designed to open and close a conductive connection for the respective phase.
- the entire switching mechanism of the molded case circuit breaker in particular consisting of rotor shaft modules rotor shaft with the respective contact elements for the individual phases, fixed contacts for each phase and the associated mechanics of the molded case circuit breaker forms a switching mechanism of the molded case circuit breaker.
- the strength and / or rigidity of the rotor modules can be reduced by the heat input into the plastic material.
- the resulting pressure drop losses can reduce the contact forces and thus jeopardize the functional reliability of the molded case circuit breaker.
- a rotor shaft module according to the preamble of claim 1 is disclosed.
- a multi-pole circuit breaker is disclosed with a switching chamber housing in which a pole number corresponding number of switching chambers is arranged side by side, and a common pole for all switching shaft, each switching chamber comprises a fixed and designed as a pivotable contact bridge contact arrangement, which with the fixed contact arrangement cooperates.
- a compact circuit breaker is disclosed with a movable contact assembly, which as a modular support assembly, a plurality of spring-biased Contact cam elements included.
- the DE 10 2012 201 939 A1 discloses a switching unit for an electrical switching device, in particular an electric circuit breaker, comprising a switching mechanism with a switching mechanism and a rotor housing with a contact arm arranged therein for opening and closing contacts during rotation of the rotor housing about an axis of rotation (R), wherein at least one lever device its upper end with the switching mechanism and at its lower end via a connecting pin with one side of the rotor housing is in operative connection.
- a rotor shaft module for a Rotor shaft of a molded case circuit breaker having the features of independent claim 1 by a rotor shaft for a molded case circuit breaker having the features of claim 8, by a molded case circuit breaker with a rotor shaft having the features of claim 9 and by a method for producing a rotor shaft module for a rotor shaft of a molded case circuit breaker the features of claim 10.
- a rotor shaft module for a rotor shaft of a molded case circuit breaker comprising a module body of an electrically insulating first material, wherein the module body has a receptacle for a contact element of the molded case circuit breaker and the rotor shaft module at least one coupling device for connecting to a Comprising negative feedback device of another rotor shaft module.
- a rotor shaft module according to the invention is characterized in that the rotor shaft module has an insertion element fixed to the module body, wherein the insertion element comprises a second material which has a higher strength compared to the first material, wherein the insertion element by the electrically insulating first material of the module body of the recording is completely spaced and wherein the at least one coupling device is formed by the insert element.
- a rotor shaft module according to the present invention is intended for use in a rotor shaft of a molded case circuit breaker.
- a module body of the rotor shaft module is a receptacle in which a contact element the compact circuit breaker can be arranged, wherein the contact element may be formed in the molded case circuit breaker for forming moving contacts of a contact system of the molded case circuit breaker for a phase of the current to be conducted together with the fixed contacts.
- the rotor shaft module has at least one coupling device which is designed to connect to a counter coupling device of another rotor shaft module, whereby a plurality of rotor shaft modules can be assembled to form a rotor shaft of the molded case circuit breaker.
- the rotor shaft module has, in addition to the module body, an insertion element which is fixed on the module body.
- the insert element comprises a second material, which differs in particular from the first, electrically insulating material of the module body.
- the insert element may consist entirely of the second material.
- An essential difference of the first and the second material is that the second material has a higher strength. Such a higher strength can manifest itself in particular in a higher rigidity, in particular with respect to rotational loads.
- the second material may be formed such that it maintains this higher strength even with a high heat input, such as may occur when operating a molded case circuit breaker at high currents and / or electrical power.
- the invention provides that the coupling device of the rotor shaft module is formed by the insert element.
- This makes it possible in connection with the fixation of the insert element on the module body, in particular by the higher rigidity of the second material of the insert element to transmit higher rotational forces between the individual rotor modules in the rotor shaft of the molded case circuit breaker.
- This has the advantage that the molded case circuit breaker can be provided for higher currents, since the ability to transmit higher rotational forces, even higher Stromschaltment can be overcome, creating a safe Tripping the molded case circuit breaker can be ensured even at these higher currents.
- the contact element of the molded case circuit breaker can be arranged by the first, electrically insulating material of the module body, it can moreover be ensured that no contact takes place between the insert element and the contact element in the assembled state.
- restrictions on the selection of the second material can be prevented in such a way that, for example, electrically conductive materials can also be used for the second material.
- this allows the use of metals and / or metal alloys as the second material for the insert element.
- the module body and the insert element can preferably be designed such that creepage currents on the surface of the material of the module body can be avoided.
- the insert element may consist entirely of a second material, wherein this material may also be electrically conductive.
- the at least one coupling device of the rotor shaft module which is formed by the insert element, insertion or assembly aids such as bevels and / or bevels has.
- the rotor shaft module for a one-phase molded case circuit breaker is provided, in which case the coupling device of the rotor shaft module is formed for coupling to a counter coupling device of an external mounting of the rotor shaft formed by the single rotor shaft module.
- the insert element is at least partially disposed in the interior of the module body. This can ensure that a particularly good power transmission can take place between the insert element and the module body.
- the fact that the contact element is arranged in the receptacle in the module body, thereby also a particularly good power transmission from the insert element allows the contact element. Particularly high switching forces can be generated thereby, whereby the operation of a molded case circuit breaker can be made safer with such a rotor shaft module.
- the rotor shaft module has at least one counter coupling device, wherein the at least one counter coupling device is formed by the insert element.
- the insert element may in particular be produced in one piece, in one piece and / or monolithically. A particularly good power transmission or force transmission can be generated.
- the counter coupling device of the rotor shaft module is designed such that it can be coupled to a coupling device of another rotor shaft module to form a rotor shaft. This can ensure that the power transmission in the rotor shaft of the molded case circuit breaker is performed by the insertion elements of the individual rotor shaft modules.
- the at least one counter coupling device can also have insertion or assembly aids, such as, for example, chamfers and / or chamfers. The assembly of the individual rotor shaft modules to a rotor shaft can be facilitated.
- a rotor shaft module it can further be provided that the at least one coupling device and the at least one counter coupling device are arranged at different axial ends of the rotor shaft module. Both the coupling device and the counter coupling device are formed by the insert element.
- the coupling device and the counter coupling device are formed by the insert element.
- a rotor shaft module can be designed to the effect that the insert element is arranged like a frame around the receptacle. It can of course be provided that the insert element is completely encased in the region of the receptacle from the module body. Due to the frame-like shape, in particular when installing the contact element in the receptacle of the module body, the contact element is pushed through an opening which is formed by the frame-like insertion element. A particularly good transmission of force between the insert element, which determines the transmission of force in the rotor shaft via the at least one coupling device, can thereby be ensured. Due to the frame-like configuration of the insert element is the insert element for embracing the contact element in the receptacle of the module body educated. Rotational movements of the rotor shaft, and thus of the insert element, can be transferred particularly well to the contact element. Particularly high currents are thus switchable in a molded case circuit breaker with such a rotor shaft module.
- the insert element has two or more coupling devices and two or more counter coupling devices.
- the power transmission between two rotor shaft modules, which are connected via these coupling devices and counter coupling devices can be further improved.
- a force distribution between the individual coupling devices or counter coupling devices can reduce the forces acting on a single coupling device or counter coupling device.
- less force must be transmitted per coupling device or counter coupling device.
- the specific requirements for the individual coupling device or counter coupling device can be reduced and, on the other hand, a greater force can be transmitted overall over the entirety of the coupling devices or counter coupling devices.
- the two or more coupling devices and the two or more counter coupling devices can be arranged on the insert element in various ways.
- all existing coupling devices or counter coupling devices may be provided on the insertion element such that they are arranged at the same axial end of the rotor shaft module.
- a particularly good and secure connection to another rotor shaft module can be ensured.
- the coupling devices and the counter coupling devices are provided on the insert element such that the coupling devices are arranged at one axial end of the rotor shaft module and the counter coupling devices at the other axial end of the rotor shaft module.
- a rotor shaft module according to the invention can moreover be designed such that the rotor shaft module has at least one connection device for connection to a mating connection device of a further rotor shaft module, wherein the at least one connection device is formed by the module body.
- the connecting device makes it possible to produce an even more secure connection between different rotor shaft modules of a rotor shaft constructed from rotor shaft modules.
- a rotor shaft module may also have a plurality of such connection devices and moreover also one or more such mating connection device, so that all variants described with respect to the coupling devices and the advantages that can be achieved thereby can also be achieved by connecting devices and mating connection devices.
- connection devices or the mating connection device can be used in particular for accurate positioning of the individual rotor shaft modules against each other, since the power transmission between the rotor shaft modules according to the invention essentially by the coupling devices and counter coupling devices, which are formed by the insert element, are generated.
- the low manufacturing tolerances of the connecting devices, as are known in the prior art, can be avoided thereby, whereby the production of the rotor shaft modules can be facilitated.
- the electrically insulating material of the module body is a plastic material, and / or that the insert element is made of metal and / or a metal Fiber composite material exists.
- Plastic materials are electrically insulating materials that are lightweight, easy and versatile to process. In particular, such plastic materials can also be used in an injection molding process, whereby a wide range of possible shape variants for rotor shaft modules is made possible.
- Essential to the invention on the second material of the insert element is that it has a higher strength than the first material of the module body. Metals and / or fiber composite materials represent such materials. As the metal, it is of course also possible to use a metal alloy for the insert element.
- Metals and / or fiber composites are materials with a high strength, especially against rotational loads.
- the insert element consists of metal and / or a fiber composite material, it can thus be ensured that higher rotational forces can be transmitted by a rotor shaft module according to the invention than by rotor shaft modules according to the prior art.
- the switching reliability of a molded case circuit breaker in which such a rotor shaft module is used can be increased, on the other hand simultaneously a possible current or a height of the switchable power of the molded case circuit breaker can be increased.
- the rotor shaft module is produced in a molding process, in particular an injection molding process, wherein the insert element is formed, in particular extrusion-coated, by the electrically insulating material of the module body.
- a molding process in particular an injection molding process
- the insert element is formed, in particular extrusion-coated, by the electrically insulating material of the module body.
- the first material is a plastic material
- the molding process is a plastic molding process.
- the molding process is more preferably an injection molding process.
- an arranging the insertion element may be provided in an injection mold, which is subsequently filled in the injection molding process with the electrically insulating material of the module body.
- a two-component injection molding process is conceivable in which the first step, the insert element, for example of a fiber composite material, produced in an injection mold and subsequently this insert element is overmolded with the electrically insulating first material of the module body in the second step.
- a particularly secure fixation of the insert element in the module body can be generated thereby.
- a rotor shaft for a molded case circuit breaker comprising at least two coupled rotor shaft modules.
- a rotor shaft according to the invention is characterized in that the at least two rotor shaft modules are each formed according to the first aspect of the invention.
- the object is achieved by a molded case circuit breaker with a rotor shaft.
- An inventive compact circuit breaker is characterized in that the rotor shaft is formed according to the second aspect of the invention.
- Such a rotor shaft according to the second aspect of the invention comprises rotor shaft modules according to the first aspect of the invention. All the advantages which have been described for a rotor shaft according to the second aspect of the invention or to a rotor shaft module according to the first aspect of the invention thus naturally also result for a device according to the invention Compact circuit breaker having such a rotor shaft according to the second aspect of the invention with rotor shaft modules according to the first aspect of the invention.
- the object is achieved by a method for producing a rotor shaft module according to the first aspect of the invention for a rotor shaft of a molded case circuit breaker.
- An inventive method is characterized in that the insert element is formed with the electrically insulating first material of the module body in a molding process. Particularly preferred is the first material is a plastic material and the molding process is a plastic molding process.
- the molding method may be an injection molding method and for the insert element to be overmolded with the electrically insulating first material of the module body.
- An injection molding process is a particularly versatile molding process and moreover a particularly simple way of producing a rotor shaft module according to the invention in accordance with the first aspect of the invention.
- the insert element is inserted into an injection mold and with the electrically insulating first material the module body overmoulded. A particularly secure fixation of the insert element in the module body can be achieved.
- the insert element for example of a fiber composite material
- this insert element is overmoulded with the electrically insulating first material of the module body in the second step.
- Fig. 1 shows a molded case circuit breaker 20.
- the molded case circuit breaker 20 in this case has a switching mechanism 22, which is designed in particular for actuating a contact system 24.
- the contact system 24 comprises for each individual phase, which can be switched by the molded case circuit breaker 20, fixed contacts 23 and a contact element 21, wherein in Fig. 1 one of these contact systems 24 is visible.
- the contact element 21 is arranged in a rotor shaft module 1 of a rotor shaft 10 of the molded case circuit breaker 20. By a rotation of the rotor shaft 10, the contact element 21 and the fixed contacts 23 can be brought into contact, whereby the contact system 24 is closed and current can flow.
- the molded case circuit breaker 20 for switching a plurality of phases visible through the plurality of first terminals 25 and second terminals 26 is formed.
- all contact systems 24 of the individual phases are closed during a switch-on operation of the molded case circuit breaker 20. Occurs in the downstream circuit of one of the phases an error condition, such as an overload or a short circuit, on, so all phases of the molded case circuit breaker 20 must be turned off.
- the molded case circuit breaker 20 for the rotor shaft 10 is provided, which is composed of a plurality of rotor shaft modules 1.
- Each of these rotor shaft modules 1 in this case has a receptacle 3, not shown, in which a contact element 21 is arranged for the respective phase.
- Fig. 2 shows two rotor shaft modules 1, which are formed according to the prior art.
- the rotor shaft modules 1 have a module body 2, which is formed from an electrically insulating material.
- the rotor shaft modules 1 each have a receptacle 3, in which a contact element 21 of a molded case circuit breaker 20 (not shown) can be arranged.
- this receptacle 3 is designed such that a rotation of the rotor shaft module 1 also results in a rotation of the contact element 21, whereby an opening and closing of the contact system 24 of the molded case circuit breaker 20 can be performed.
- the module body 2 of the rotor shaft modules 1 are each formed with connecting devices 4 and mating connection devices 8.
- the connecting devices 4 and the counter-connecting devices 8 are designed such that they can be inserted into one another and thus produce a firm connection between the rotor shaft modules 1.
- Fig. 3a, 3b and 3c show different views of two inventive rotor shaft modules 1. It is in Fig. 3a in each case the entire rotor shaft module 1 is shown, wherein the insert element 5 is drawn visible in the interior of the respective rotor shaft module 1 for the figure.
- Fig. 3b is a sectional view of the module body 2 of the rotor shaft modules 1 and in Fig. 3c a sectional view of the insertion elements 5 of the respective rotor shaft module 1 shown.
- the rotor shaft modules 1 according to the invention again have one Module body 2, which in particular has a receptacle 3 for a contact element 21 (not shown) of a molded case circuit breaker 20. It is essential to the invention that a rotor shaft module 1 according to the invention also has an insert element 5 and a force transmission between the rotor shaft modules 1 in the assembled state to the rotor shaft 10 is performed by coupling devices 6 and counter coupling devices 7 of the insert elements 5.
- the module body 2 need not take over this task and are as visible in Fig. 3b , only next to each other.
- the insertion elements 5 are formed such that they extend like a frame around the receptacle 3 in the module body 2.
- the contact element 21 can be offset particularly effectively during rotation of the rotor shaft 10, since the power transmission between the insert elements 5 and the respective contact element 21 by the frame-like configuration of the insert element 5 is particularly effective.
- Fig. 3a visible that in the region of the receptacle 3, the insertion element 5 is completely spaced by the material of the module body 2 of the receptacle 3.
- the insert element 5 is even completely encased in the region of the receptacle 3 by the material of the module body 2. Since the material of the module body 2 is electrically insulating, thereby an electrically conductive connection between the contact element 21 and the insert element 5 can be safely avoided.
- the insert element 5 from an electrically conductive material, for example metal or a metal alloy.
- a metal or a metal alloy has with respect to the transmission of forces, in particular rotational forces, very good properties, whereby a total of a rotor shaft 10, which is constructed by such rotor shaft modules 1 according to the invention, a switching of the molded case circuit breaker 20, in which such a rotor shaft 10 installed is, even at high currents or switched electrical power can be ensured.
- the Fig. 3b and 3c each still show sectional views, once the module body 2 in Fig. 3b and the insert elements 5 in Fig. 3c , In particular in Fig.
- Such a rotor shaft 10 according to the invention is in the Fig. 4a, 4b shown. It is in Fig. 4a a fully assembled rotor shaft 10 of four rotor shaft modules 1 shown. The same rotor shaft 10 is in Fig. 4b shown just before assembly from the four rotor shaft modules 1.
- the individual elements of the rotor shaft modules 1 are only in Fig. 4b characterized.
- these rotor shaft modules 1, in addition to the coupling devices 6 and the counter coupling devices 7 of the insertion elements 5, also have connection devices 4 and counter connection devices 8, which are formed by the module body 2.
- These connecting devices 4 and the counter-connecting devices 8 are used in particular for the stabilization or positioning of the individual rotor shaft modules 1 against each other, wherein for a power transmission between the individual rotor shaft modules 1 substantially the coupling devices 6 and the counter coupling devices 7 are provided.
- the insert elements 5 of the individual rotor shaft modules 1 are again completely separated by the material of the module body 2 from a receptacle 3 in the interior of the module body 2. As already in relation to Fig. 3a, 3b, 3c described, thereby an electrically conductive connection between the insert element 5 and a contact element 21 (not shown) can be prevented at any time.
- the insert element 5 can thereby be made of an electrically conductive material, for example a metal or a metal alloy, be made.
- a rotor shaft 10, which is constructed by such rotor shaft modules 1 according to the invention, can thus ensure that all contact elements 21 in the respective receptacles 3 of the respective rotor shaft modules 1 can be actuated simultaneously or at least approximately simultaneously, thereby ensuring safety during switching, even when the molded case circuit breaker is tripped 20 (not shown) in a fault condition in the downstream circuit, can be ensured at all times.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Breakers (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Description
Rotorwellenmodul für eine Rotorwelle eines Kompaktleistungsschalters, Rotorwelle für einen Kompaktleistungsschalter, Kompaktleistungsschalter sowie Verfahren zur Herstellung eines Rotorwellenmoduls für eine Rotorwelle eines KompaktleistungsschaltersRotor shaft module for a rotor shaft of a molded case circuit breaker, rotor shaft for a molded case circuit breaker, molded case circuit breaker and method for producing a rotor shaft module for a rotor shaft of a molded case circuit breaker
Die vorliegende Erfindung betrifft ein Rotorwellenmodul für eine Rotorwelle eines Kompaktleistungsschalters, aufweisend einen Modulkörper aus einem elektrisch isolierenden ersten Material, wobei der Modulkörper eine Aufnahme für ein Kontaktelement des Kompaktleistungsschalters aufweist und das Rotorwellenmodul zumindest eine Koppelvorrichtung zum Verbinden mit einer Gegenkoppelvorrichtung eines weiteren Rotorwellenmoduls aufweist. Ferner betrifft die Erfindung eine Rotorwelle für einen Kompaktleistungsschalter, einen Kompaktleistungsschalter mit einer Rotorwelle sowie ein Verfahren zur Herstellung eines Rotorwellenmoduls für eine Rotorwelle eines Kompaktleistungsschalters.The present invention relates to a rotor shaft module for a rotor shaft of a molded case circuit breaker, comprising a module body of an electrically insulating first material, wherein the module body has a receptacle for a contact element of the molded case circuit breaker and the rotor shaft module has at least one coupling device for connection to a counter coupling device of another rotor shaft module. Furthermore, the invention relates to a rotor shaft for a molded case circuit breaker, a compact circuit breaker with a rotor shaft and a method for producing a rotor shaft module for a rotor shaft of a molded case circuit breaker.
In der modernen Technik sind Kompaktleistungsschalter (MCCB = Molded Case Circuit Breaker) bekannt und werden weitläufig eingesetzt. Derartige Kompaktleistungsschalter ermöglichen insbesondere das Schalten von hohen Strömen bzw. Leistungen. Da derartige Kompaktleistungsschalter oftmals auch mit Sicherungsvorrichtungen, wie beispielsweise einer Überlast- und/oder einer Kurzschlusssicherung, ausgebildet sind, erhöhen bekannte Kompaktleistungsschalter auch die Sicherheit beim Schalten derartiger Ströme. Um einen Strom mit hoher Leistung und/oder hoher Stärke zur Verfügung zu stellen, wird der Strom zumeist mehrphasig mit je einer Leitung für eine Phase bereitgestellt. Beim Auftreten eines Fehlers, beispielsweise einer Überlast oder eines Kurzschlusses, in nur einer dieser Phasen, müssen jedoch alle Phasen, die durch einen gemeinsamen Kompaktleistungsschalter geschaltet werden, getrennt werden. Derartige Kompaktleistungsschalter weisen daher eine Rotorwelle auf, wobei die Rotorwelle aus einzelnen Rotorwellenmodulen aufgebaut ist. Für jede Phase des zu leitenden Stroms ist ein Rotorwellenmodul vorgesehen, wobei das Rotorwellenmodul ein Kontaktelement aufweist, das zum Öffnen und Schließen einer leitenden Verbindung für die jeweilige Phase ausgebildet ist. Die gesamte Schaltmechanik des Kompaktleistungsschalters, insbesondere die aus Rotorwellenmodulen bestehende Rotorwelle mit den jeweiligen Kontaktelementen für die einzelnen Phasen, Festkontakte für jede einzelne Phase und die dazugehörige Mechanik des Kompaktleistungsschalters bildet ein Schaltschloss des Kompaktleistungsschalters.In modern technology Molded Case Circuit Breaker (MCCB) known and are widely used. Such compact circuit breakers allow in particular the switching of high currents or powers. Since such molded case circuit breakers are often designed with safety devices such as overload and / or short-circuit protection, known molded case circuit breakers also increase safety when switching such currents. In order to provide a power with high power and / or high power, the power is usually provided in multiple phases, each with one line for one phase. However, when a fault such as an overload or a short circuit occurs in only one of these phases, all phases that are switched by a common molded case circuit breaker must be disconnected. Such compact circuit breaker therefore have a rotor shaft, wherein the rotor shaft of individual Rotor shaft modules is constructed. For each phase of the current to be conducted, a rotor shaft module is provided, wherein the rotor shaft module has a contact element which is designed to open and close a conductive connection for the respective phase. The entire switching mechanism of the molded case circuit breaker, in particular consisting of rotor shaft modules rotor shaft with the respective contact elements for the individual phases, fixed contacts for each phase and the associated mechanics of the molded case circuit breaker forms a switching mechanism of the molded case circuit breaker.
Bei Kompaktleistungsschaltern wirken durch das Schaltschloss und die auftretenden Stromkräfte hohe Drehmomente auf das Kontaktsystem, das durch die Festkontakte und das Kontaktelement für jede einzelne Phase gebildet wird. Jedes Kontaktsystem einer Phase des Kompaktleistungsschalters muss zueinander elektrisch isoliert gekoppelt werden. Deshalb ist es gemäß dem Stand der Technik bekannt, die einzelnen Rotormodule aus einem elektrisch isolierenden Material, beispielsweise Kunststoff, herzustellen. Jedoch sind nicht alle Materialien in der Lage, die auftretenden Kräfte bzw. Drehmomente bei einer Auslösung des Kompaktleistungsschalters und auch bereits die Dauerbelastung durch die während des Betriebs des Kompaktleistungsschalters auftretenden statischen Kräfte aufzunehmen. Auch kann bei hohen Strömen bzw. elektrischen Leistungen eine Wärmebelastung auftreten, die die Festigkeit der verwendeten Materialien beeinträchtigt. Insbesondere bei Kunststoffmaterialien, die elektrisch isolierend sind und deshalb als Material für die Rotormodule verwendet werden, kann die Festigkeit und/oder Steifigkeit der Rotormodule durch den Wärmeeintrag in das Kunststoffmaterial vermindert werden. Durch die daraus resultierenden Durchdruckverluste können die Kontaktkräfte reduziert und damit die Funktionssicherheit des Kompaktleistungsschalters gefährdet werden.In the case of molded case circuit breakers, high torques act on the contact system, which is formed by the fixed contacts and the contact element for each individual phase, through the switching mechanism and the current forces that occur. Each contact system of one phase of the molded case circuit breaker must be electrically isolated from each other. It is therefore known in accordance with the prior art to manufacture the individual rotor modules from an electrically insulating material, for example plastic. However, not all materials are able to absorb the forces or torques occurring when the molded case circuit breaker is tripped and also the continuous load due to the static forces occurring during operation of the molded case circuit breaker. Also, at high currents or electrical services, a heat load may occur, which affects the strength of the materials used. Particularly in the case of plastic materials which are electrically insulating and are therefore used as material for the rotor modules, the strength and / or rigidity of the rotor modules can be reduced by the heat input into the plastic material. The resulting pressure drop losses can reduce the contact forces and thus jeopardize the functional reliability of the molded case circuit breaker.
Gemäß dem Stand der Technik ist es bekannt, diese Probleme insbesondere durch das Vorsehen geringer Toleranzen der Konturen von Koppelvorrichtungen, durch die die einzelnen Rotormodule verbunden werden, zu lösen. Durch diese geringen Produktionstoleranzen, insbesondere um Vorschädigungen an den Verbindungsvorrichtung aufgrund dieser geringen Toleranzen zu vermeiden, sind jedoch aufwändige Maßnahmen bei der Herstellung und der Montage der Rotorwellenmodule des Kompaktleistungsschalters notwendig. Um die auftretenden Drehkräfte zu übertragen, sind teilweise bereits derart kleine Toleranzen bei der Herstellung der Rotorwellenmodule nötig, dass es bei einer nur leicht fehlerhaften oder auch nur unaufmerksamen Montage der Rotorwellenmodule zu einer Rotorwelle zu einer Zerstörung einer Koppelvorrichtung kommen kann. Darüber hinaus ist durch den Einsatz von Kunststoff die maximal übertragbare Drehkraft zwischen den einzelnen Rotorwellenmodulen begrenzt. Dies begrenzt jedoch auch die Stärke des Stroms bzw. die Höhe der Leistung, die durch den Kompaktleistungsschalter geschaltet werden kann. Dies liegt darin begründet, dass hohe Ströme bzw. hohe Leistungen auch hohe Stromkräfte mit sich bringen, wobei die daraus resultierenden höheren Drehmomente bei einer Auslösung des Kompaktleistungsschalters im schlechtesten Fall durch die Verbindungsvorrichtungen zwischen den einzelnen Rotormodulen der Rotorwelle des Kompaktleistungsschalters nicht mehr sicher übertragen werden können. Ein Versagen des Kompaktleistungsschalters bei hohen Strömen bzw. hohen Stromleistungen kann dadurch nicht sicher ausgeschlossen werden.In the prior art, it is known to overcome these problems, in particular by providing low tolerances of the contours of coupling devices through which the individual rotor modules be connected to solve. Due to these low production tolerances, in particular to avoid pre-damage to the connecting device due to these small tolerances, however, complex measures in the manufacture and assembly of the rotor shaft modules of the molded case circuit breaker are necessary. In order to transmit the occurring rotational forces, in some cases such small tolerances are necessary in the manufacture of the rotor shaft modules that a destruction of a coupling device can occur if the rotor shaft modules are only slightly faulty or even inattentive. In addition, the maximum transferable torque between the individual rotor shaft modules is limited by the use of plastic. However, this also limits the strength of the current or the amount of power that can be switched by the molded case circuit breaker. This is due to the fact that high currents or high powers also bring high current forces, with the resulting higher torques can not be transmitted safely at a tripping of the molded case circuit breaker in the worst case by the connection devices between the individual rotor modules of the molded case circuit breaker , A failure of the molded case circuit breaker at high currents or high power can not be excluded safe.
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Es ist somit Aufgabe der Erfindung, die oben beschriebenen Nachteile von Rotorwellenmodulen, Rotorwellen bzw. Kompaktleistungsschaltern zumindest teilweise zu beheben. Insbesondere ist es Aufgabe der Erfindung, ein Rotorwellenmodul, eine Rotorwelle, einen Kompaktleistungsschalter bzw. ein Verfahren zur Herstellung eines Rotorwellenmoduls zur Verfügung zu stellen, bei denen auf besonders einfache und kostengünstige Art und Weise eine besonders gute Drehkraftübertragung zwischen benachbarten Rotorwellenmodulen sichergestellt werden kann.It is therefore an object of the invention to remedy the disadvantages of rotor shaft modules, rotor shafts or compact circuit breakers described above at least partially. In particular, it is an object of the invention to provide a rotor shaft module, a rotor shaft, a molded case circuit breaker or a method for producing a rotor shaft module in which a particularly simple and cost-effective manner, a particularly good torque transmission between adjacent rotor shaft modules can be ensured.
Diese Aufgabe wird gelöst durch ein Rotorwellenmodul für eine Rotorwelle eines Kompaktleistungsschalters mit den Merkmalen des unabhängigen Anspruchs 1, durch eine Rotorwelle für einen Kompaktleistungsschalter mit den Merkmalen des Anspruchs 8, durch einen Kompaktleistungsschalter mit einer Rotorwelle mit den Merkmalen des Anspruchs 9 sowie durch ein Verfahren zur Herstellung eines Rotorwellenmoduls für eine Rotorwelle eines Kompaktleistungsschalters mit den Merkmalen des Anspruchs 10.This object is achieved by a rotor shaft module for a Rotor shaft of a molded case circuit breaker having the features of
Dabei gelten Merkmale und Details, die im Zusammenhang mit dem erfindungsgemäßen Rotorwellenmodul beschrieben sind, selbstverständlich auch in Verbindung mit der erfindungsgemäßen Rotorwelle, dem erfindungsgemäßen Kompaktleistungsschalter sowie dem erfindungsgemäßen Verfahren und jeweils umgekehrt, so dass bezüglich der Offenbarung zu den einzelnen Erfindungsaspekten stets wechselseitig Bezug genommen wird bzw. werden kann.In this case, features and details that are described in connection with the rotor shaft module according to the invention apply, of course, in conjunction with the rotor shaft according to the invention, the circuit breaker of the invention and the inventive method and in each case vice versa, so that with respect to the disclosure of the individual aspects of the invention always reciprocal reference or can be.
In einem ersten Aspekt der Erfindung wird die Aufgabe gelöst durch ein Rotorwellenmodul für eine Rotorwelle eines Kompaktleistungsschalters, aufweisend einen Modulkörper aus einem elektrisch isolierenden ersten Material, wobei der Modulkörper eine Aufnahme für ein Kontaktelement des Kompaktleistungsschalters aufweist und das Rotorwellenmodul zumindest eine Koppelvorrichtung zum Verbinden mit einer Gegenkoppelvorrichtung eines weiteren Rotorwellenmoduls aufweist. Ein erfindungsgemäßes Rotorwellenmodul ist dadurch gekennzeichnet, dass das Rotorwellenmodul ein am Modulkörper fixiertes Einlegeelement aufweist, wobei das Einlegeelement ein zweites Material umfasst, welches im Vergleich zum ersten Material eine höhere Festigkeit aufweist, wobei das Einlegeelement durch das elektrisch isolierende erste Material des Modulkörpers von der Aufnahme vollständig beabstandet ist und wobei die zumindest eine Koppelvorrichtung durch das Einlegeelement gebildet ist.In a first aspect of the invention, the object is achieved by a rotor shaft module for a rotor shaft of a molded case circuit breaker, comprising a module body of an electrically insulating first material, wherein the module body has a receptacle for a contact element of the molded case circuit breaker and the rotor shaft module at least one coupling device for connecting to a Comprising negative feedback device of another rotor shaft module. A rotor shaft module according to the invention is characterized in that the rotor shaft module has an insertion element fixed to the module body, wherein the insertion element comprises a second material which has a higher strength compared to the first material, wherein the insertion element by the electrically insulating first material of the module body of the recording is completely spaced and wherein the at least one coupling device is formed by the insert element.
Ein Rotorwellenmodul gemäß der vorliegenden Erfindung ist für einen Einsatz in einer Rotorwelle eines Kompaktleistungsschalters vorgesehen. In einem Modulkörper des Rotorwellenmoduls befindet sich eine Aufnahme, in der ein Kontaktelement des Kompaktleistungsschalters angeordnet werden kann, wobei das Kontaktelement im Kompaktleistungsschalter zum Bilden von Bewegkontakten eines Kontaktsystems des Kompaktleistungsschalters für eine Phase des zu leitenden Stroms zusammen mit den Festkontakten ausgebildet sein kann. Das Rotorwellenmodul weist dabei zumindest eine Koppelvorrichtung auf, die zum Verbinden mit einer Gegenkoppelvorrichtung eines weiteren Rotorwellenmoduls ausgebildet ist, wodurch mehrere Rotorwellenmodule zu einer Rotorwelle des Kompaktleistungsschalters zusammensetzbar sind.A rotor shaft module according to the present invention is intended for use in a rotor shaft of a molded case circuit breaker. In a module body of the rotor shaft module is a receptacle in which a contact element the compact circuit breaker can be arranged, wherein the contact element may be formed in the molded case circuit breaker for forming moving contacts of a contact system of the molded case circuit breaker for a phase of the current to be conducted together with the fixed contacts. The rotor shaft module has at least one coupling device which is designed to connect to a counter coupling device of another rotor shaft module, whereby a plurality of rotor shaft modules can be assembled to form a rotor shaft of the molded case circuit breaker.
Erfindungsgemäß ist vorgesehen, dass das Rotorwellenmodul neben dem Modulkörper ein Einlegeelement aufweist, das am Modulkörper fixiert ist. Das Einlegeelement umfasst dabei ein zweites Material, das sich insbesondere vom ersten, elektrisch isolierenden Material des Modulkörpers unterscheidet. Selbstverständlich kann dabei das Einlegeelement vollständig aus dem zweiten Material bestehen. Ein wesentlicher Unterschied des ersten und des zweiten Materials ist dabei, dass das zweite Material eine höhere Festigkeit aufweist. Eine derartige höhere Festigkeit kann sich dabei insbesondere in einer höheren Steifigkeit, insbesondere gegenüber Drehbelastungen, manifestieren. Auch kann das zweite Material derart ausgebildet sein, dass es diese höhere Festigkeit auch bei einem hohen Wärmeeintrag, wie er beispielsweise beim Betrieb eines Kompaktleistungsschalters bei hohen Strömen und/oder elektrischen Leistungen auftreten kann, bestehen bleibt. Ferner ist erfindungsgemäß vorgesehen, dass die Koppelvorrichtung des Rotorwellenmoduls durch das Einlegeelement gebildet ist. Dadurch ist es in Verbindung mit der Fixierung des Einlegeelements am Modulkörper möglich, insbesondere durch die höhere Steifigkeit des zweiten Materials des Einlegeelements, höhere Drehkräfte zwischen den einzelnen Rotormodulen in der Rotorwelle des Kompaktleistungsschalters zu übertragen. Dies hat zum einen den Vorteil, dass der Kompaktleistungsschalter für höhere Ströme vorgesehen werden kann, da durch die Fähigkeit, höhere Drehkräfte zu übertragen, auch höhere Stromschaltkräfte überwunden werden können, wodurch ein sicheres Auslösen des Kompaktleistungsschalters auch bei diesen höheren Strömen sichergestellt werden kann. Darüber hinaus ist es auch möglich, die Anforderungen an die Passgenauigkeit bzw. die Toleranzen bei der Herstellung der Koppelvorrichtung zu verringern, ohne Einbußen bei der Sicherheit bezüglich der Funktionalität des Kompaktleistungsschalters, in dem das Rotorwellenmodul verbaut ist, befürchten zu müssen. Ein geringerer Ausschuss bei der Herstellung und der Montage der erfindungsgemäßen Rotorwellenmodule kann dadurch erreicht werden. Darüber hinaus kann durch das zweite Material, dass insbesondere unter Wärmeeintrag seine Festigkeit nicht oder nur unwesentlich vermindert, ein sicheres Schalten von hohen Strömen, die eine hohe Abwärme aufweisen, sichergestellt werden.According to the invention, it is provided that the rotor shaft module has, in addition to the module body, an insertion element which is fixed on the module body. The insert element comprises a second material, which differs in particular from the first, electrically insulating material of the module body. Of course, the insert element may consist entirely of the second material. An essential difference of the first and the second material is that the second material has a higher strength. Such a higher strength can manifest itself in particular in a higher rigidity, in particular with respect to rotational loads. Also, the second material may be formed such that it maintains this higher strength even with a high heat input, such as may occur when operating a molded case circuit breaker at high currents and / or electrical power. Furthermore, the invention provides that the coupling device of the rotor shaft module is formed by the insert element. This makes it possible in connection with the fixation of the insert element on the module body, in particular by the higher rigidity of the second material of the insert element to transmit higher rotational forces between the individual rotor modules in the rotor shaft of the molded case circuit breaker. This has the advantage that the molded case circuit breaker can be provided for higher currents, since the ability to transmit higher rotational forces, even higher Stromschaltkräfte can be overcome, creating a safe Tripping the molded case circuit breaker can be ensured even at these higher currents. In addition, it is also possible to reduce the requirements for the accuracy of fit or the tolerances in the manufacture of the coupling device, without compromising on the safety of the functionality of the molded case circuit breaker in which the rotor shaft module is installed to fear. A lower reject rate in the manufacture and assembly of the rotor shaft modules according to the invention can be achieved thereby. In addition, can be ensured by the second material that, especially under heat input its strength is not or only insignificantly reduced, a safe switching of high currents, which have a high heat loss.
Durch die vollständige Beabstandung des Einlegeelements von der Aufnahme, in der das Kontaktelement des Kompaktleistungsschalters anordenbar ist, durch das erste, elektrisch isolierende Material des Modulkörpers, kann darüber hinaus sichergestellt werden, dass zwischen dem Einlegeelement und dem Kontaktelement im zusammengebauten Zustand keine Berührung stattfindet. Dadurch können Einschränkungen bei der Auswahl des zweiten Materials dahingehend verhindert werden, dass beispielsweise für das zweite Material auch elektrisch leitende Materialien verwendet werden können. Insbesondere ist dadurch der Einsatz von Metallen und/oder Metalllegierungen als zweites Material für das Einlegeelement ermöglicht. Bevorzugt können dabei der Modulkörper und das Einlegeelement derart ausgebildet sein, dass auch Kriechströme auf der Oberfläche des Materials des Modulkörpers vermieden werden können. Insbesondere ist es dadurch auch möglich, dass das Einlegeelement vollständig aus einem zweiten Material besteht, wobei dieses Material auch elektrisch leitend sein kann. Auch kann vorgesehen sein, dass die zumindest eine Koppelvorrichtung des Rotorwellenmoduls, die durch das Einlegeelement gebildet ist, Einführ- bzw. Montagehilfen wie beispielsweise Abschrägungen und/oder Fasen aufweist. Darüber hinaus kann auch vorgesehen sein, dass das Rotorwellenmodul für einen einphasigen Kompaktleistungsschalter vorgesehen ist, wobei hier die Koppelvorrichtung des Rotorwellenmoduls zum Koppeln an eine Gegenkoppelvorrichtung einer externen Lagerung der durch das einzige Rotorwellenmodul gebildeten Rotorwelle gebildet ist.Due to the complete spacing of the insert element from the receptacle, in which the contact element of the molded case circuit breaker can be arranged by the first, electrically insulating material of the module body, it can moreover be ensured that no contact takes place between the insert element and the contact element in the assembled state. As a result, restrictions on the selection of the second material can be prevented in such a way that, for example, electrically conductive materials can also be used for the second material. In particular, this allows the use of metals and / or metal alloys as the second material for the insert element. In this case, the module body and the insert element can preferably be designed such that creepage currents on the surface of the material of the module body can be avoided. In particular, it is thereby also possible for the insert element to consist entirely of a second material, wherein this material may also be electrically conductive. It can also be provided that the at least one coupling device of the rotor shaft module, which is formed by the insert element, insertion or assembly aids such as bevels and / or bevels has. In addition, it can also be provided that the rotor shaft module for a one-phase molded case circuit breaker is provided, in which case the coupling device of the rotor shaft module is formed for coupling to a counter coupling device of an external mounting of the rotor shaft formed by the single rotor shaft module.
Darüber hinaus kann bei einem erfindungsgemäßen Rotorwellenmodul vorgesehen sein, dass das Einlegeelement zumindest teilweise im Inneren des Modulkörpers angeordnet ist. Dadurch kann sichergestellt werden, dass zwischen dem Einlegeelement und dem Modulkörper eine besonders gute Kraftübertragung erfolgen kann. Dadurch, dass das Kontaktelement in der Aufnahme im Modulkörper angeordnet ist, ist dadurch auch eine besonders gute Kraftübertragung vom Einlegeelement auf das Kontaktelement ermöglicht. Besonders hohe Schaltkräfte können dadurch erzeugt werden, wodurch der Betrieb eines Kompaktleistungsschalters mit einem derartigen Rotorwellenmodul sicherer gestaltet werden kann.In addition, it can be provided in a rotor shaft module according to the invention that the insert element is at least partially disposed in the interior of the module body. This can ensure that a particularly good power transmission can take place between the insert element and the module body. The fact that the contact element is arranged in the receptacle in the module body, thereby also a particularly good power transmission from the insert element allows the contact element. Particularly high switching forces can be generated thereby, whereby the operation of a molded case circuit breaker can be made safer with such a rotor shaft module.
Besonders bevorzugt kann bei einem erfindungsgemäßen Rotorwellenmodul vorgesehen sein, dass das Rotorwellenmodul zumindest eine Gegenkoppelvorrichtung aufweist, wobei die zumindest eine Gegenkoppelvorrichtung durch das Einlegeelement gebildet ist. Das Einlegeelement kann insbesondere einstückig, einteilig und/oder monolithisch hergestellt sein. Eine besonders gute Kraftübertragung bzw. Kraftweiterleitung kann dadurch erzeugt werden. Besonders bevorzugt kann dabei vorgesehen sein, dass die Gegenkoppelvorrichtung des Rotorwellenmoduls derart ausgestaltet ist, dass sie an eine Koppelvorrichtung eines weiteren Rotorwellenmoduls zur Bildung einer Rotorwelle gekoppelt werden kann. Dadurch kann sichergestellt werden, dass die Kraftübertragung in der Rotorwelle des Kompaktleistungsschalters durch die Einlegeelemente der einzelnen Rotorwellenmodule durchgeführt wird. Durch das zweite Material der Einlegeelemente, das eine höhere Festigkeit als das erste Material der Modulkörper aufweist, kann so eine bessere Kraftübertragung innerhalb der gesamten Rotorwelle des Kompaktleistungsschalters sichergestellt werden. Selbstverständlich kann auch die zumindest eine Gegenkoppelvorrichtung Einführ- bzw. Montagehilfen, wie beispielsweise Abschrägungen und/oder Fasen, aufweisen. Der Zusammenbau der einzelnen Rotorwellenmodule zu einer Rotorwelle kann dadurch erleichtert werden.Particularly preferably, in a rotor shaft module according to the invention, it can be provided that the rotor shaft module has at least one counter coupling device, wherein the at least one counter coupling device is formed by the insert element. The insert element may in particular be produced in one piece, in one piece and / or monolithically. A particularly good power transmission or force transmission can be generated. Particularly preferably, it can be provided that the counter coupling device of the rotor shaft module is designed such that it can be coupled to a coupling device of another rotor shaft module to form a rotor shaft. This can ensure that the power transmission in the rotor shaft of the molded case circuit breaker is performed by the insertion elements of the individual rotor shaft modules. By the second material of the insert elements, which has a higher strength than the first material of the module body, so a better power transmission can be ensured within the entire rotor shaft of the molded case circuit breaker. Of course The at least one counter coupling device can also have insertion or assembly aids, such as, for example, chamfers and / or chamfers. The assembly of the individual rotor shaft modules to a rotor shaft can be facilitated.
In einer bevorzugten Weiterentwicklung eines erfindungsgemäßen Rotorwellenmoduls kann ferner vorgesehen sein, dass die zumindest eine Koppelvorrichtung und die zumindest eine Gegenkoppelvorrichtung an verschiedenen axialen Enden des Rotorwellenmoduls angeordnet sind. Sowohl die Koppelvorrichtung als auch die Gegenkoppelvorrichtung werden durch das Einlegeelement gebildet. Durch eine Anordnung der Koppelvorrichtung und der Gegenkoppelvorrichtung an verschiedenen axialen Enden des Rotorwellenmoduls ist es möglich, aus mehreren derartigen, insbesondere gleichartig aufgebauten, Rotorwellenmodulen eine Rotorwelle zu erstellen. Das Vorsehen von verschiedenen Rotorwellenmodulen zum Aufbau einer Rotorwelle kann dadurch vermieden werden. Die einzelnen Rotorwellenmodule können somit in großer Stückzahl hergestellt werden, wodurch zum einen die Fertigung erleichtert und zum anderen die Fertigungskosten für die Fertigung von Rotorwellenmodulen gesenkt werden kann.In a preferred further development of a rotor shaft module according to the invention, it can further be provided that the at least one coupling device and the at least one counter coupling device are arranged at different axial ends of the rotor shaft module. Both the coupling device and the counter coupling device are formed by the insert element. By arranging the coupling device and the counter coupling device at different axial ends of the rotor shaft module, it is possible to create a rotor shaft from a plurality of such rotor shaft modules, in particular of a similar construction. The provision of various rotor shaft modules for the construction of a rotor shaft can be avoided. The individual rotor shaft modules can thus be produced in large numbers, which on the one hand facilitates the production and on the other hand, the production costs for the manufacture of rotor shaft modules can be reduced.
Auch kann ein Rotorwellenmodul dahingehend ausgebildet sein, dass das Einlegeelement rahmenartig um die Aufnahme angeordnet ist. Dabei kann selbstverständlich vorgesehen sein, dass das Einlegeelement im Bereich der Aufnahme vollständig vom Modulkörper ummantelt ist. Durch die rahmenartige Form wird insbesondere beim Einbau des Kontaktelements in die Aufnahme des Modulkörpers das Kontaktelement durch eine Öffnung geschoben, die durch das rahmenartige Einlegeelement gebildet ist. Eine besonders gute Kraftübertragung zwischen dem Einlegeelement, das über die zumindest eine Koppelvorrichtung die Kraftübertragung in der Rotorwelle bestimmt, auf das Kontaktelement kann dadurch sichergestellt werden. Durch die rahmenartige Ausgestaltung des Einlegeelements ist das Einlegeelement zum Umfassen des Kontaktelements in der Aufnahme des Modulkörpers ausgebildet. Drehbewegungen der Rotorwelle, und damit des Einlegeelements, können dadurch besonders gut auf das Kontaktelement übertragen werden. Besonders hohe Ströme sind somit in einem Kompaktleistungsschalter mit einem derartigen Rotorwellenmodul schaltbar.Also, a rotor shaft module can be designed to the effect that the insert element is arranged like a frame around the receptacle. It can of course be provided that the insert element is completely encased in the region of the receptacle from the module body. Due to the frame-like shape, in particular when installing the contact element in the receptacle of the module body, the contact element is pushed through an opening which is formed by the frame-like insertion element. A particularly good transmission of force between the insert element, which determines the transmission of force in the rotor shaft via the at least one coupling device, can thereby be ensured. Due to the frame-like configuration of the insert element is the insert element for embracing the contact element in the receptacle of the module body educated. Rotational movements of the rotor shaft, and thus of the insert element, can be transferred particularly well to the contact element. Particularly high currents are thus switchable in a molded case circuit breaker with such a rotor shaft module.
Auch kann bei einem erfindungsgemäßen Rotorwellenmodul vorgesehen sein, dass das Einlegeelement zwei oder mehr Koppelvorrichtungen und zwei oder mehr Gegenkoppelvorrichtungen aufweist. Durch das Vorsehen mehrerer Koppelvorrichtungen und Gegenkoppelvorrichtungen kann die Kraftübertragung zwischen zwei Rotorwellenmodulen, die über diese Koppelvorrichtungen und Gegenkoppelvorrichtungen verbunden sind, nochmals verbessert werden. Auch kann eine Kraftverteilung zwischen den einzelnen Koppelvorrichtungen bzw. Gegenkoppelvorrichtungen die Kräfte, die auf eine einzelne Koppelvorrichtung bzw. Gegenkoppelvorrichtung wirken, vermindern. Somit muss pro Koppelvorrichtung bzw. Gegenkoppelvorrichtung weniger Kraft übertragen werden. Dadurch können zum einen die spezifischen Anforderungen an die einzelne Koppelvorrichtung bzw. Gegenkoppelvorrichtung vermindert werden und zum anderen kann insgesamt eine größere Kraft über die Gesamtheit der Koppelvorrichtungen bzw. Gegenkoppelvorrichtungen übertragen werden. Dabei können die zwei oder mehr Koppelvorrichtungen und die zwei oder mehr Gegenkoppelvorrichtungen am Einlegeelement auf verschiedene Arten angeordnet sein. So können beispielsweise alle vorhandenen Koppelvorrichtungen bzw. Gegenkoppelvorrichtungen derart am Einlegeelement vorgesehen sein, dass sie am gleichen axialen Ende des Rotorwellenmoduls angeordnet sind. Eine besonders gute und sichere Verbindung zu einem weiteren Rotorwellenmodul kann dadurch sichergestellt werden. Eine weitere Möglichkeit besteht darin, dass die Koppelvorrichtungen und die Gegenkoppelvorrichtungen derart am Einlegeelement vorgesehen sind, dass die Koppelvorrichtungen an einem axialen Ende des Rotorwellenmoduls und die Gegenkoppelvorrichtungen am anderen axialen Ende des Rotorwellenmoduls angeordnet sind. Dadurch ist wiederum ein modularer Aufbau der Rotorwelle aus konstruktiv identischen Rotorwellenmodulen möglich, wobei jeweils die Koppelvorrichtungen des einen Rotorwellenmoduls mit den Gegenkoppelvorrichtungen eines zweiten Rotorwellenmoduls verbunden werden. Auch dadurch kann eine besonders gute Kraftübertragung zwischen dem Rotorwellenmodul sichergestellt werden, da mindestens zwei Koppelvorrichtungs-Gegenkoppelvorrichtungspaare vorhanden sind.It can also be provided in a rotor shaft module according to the invention that the insert element has two or more coupling devices and two or more counter coupling devices. By providing a plurality of coupling devices and counter coupling devices, the power transmission between two rotor shaft modules, which are connected via these coupling devices and counter coupling devices, can be further improved. Also, a force distribution between the individual coupling devices or counter coupling devices can reduce the forces acting on a single coupling device or counter coupling device. Thus, less force must be transmitted per coupling device or counter coupling device. As a result, on the one hand, the specific requirements for the individual coupling device or counter coupling device can be reduced and, on the other hand, a greater force can be transmitted overall over the entirety of the coupling devices or counter coupling devices. In this case, the two or more coupling devices and the two or more counter coupling devices can be arranged on the insert element in various ways. Thus, for example, all existing coupling devices or counter coupling devices may be provided on the insertion element such that they are arranged at the same axial end of the rotor shaft module. A particularly good and secure connection to another rotor shaft module can be ensured. Another possibility is that the coupling devices and the counter coupling devices are provided on the insert element such that the coupling devices are arranged at one axial end of the rotor shaft module and the counter coupling devices at the other axial end of the rotor shaft module. This in turn makes possible a modular construction of the rotor shaft from structurally identical rotor shaft modules, wherein in each case the coupling devices of the one rotor shaft module are connected to the counter coupling devices of a second rotor shaft module. This also ensures a particularly good power transmission between the rotor shaft module, since there are at least two coupling device Gegenkoppelvorrichtungspaare.
Ein erfindungsgemäßes Rotorwellenmodul kann darüber hinaus dahingehend ausgebildet sein, dass das Rotorwellenmodul zumindest eine Verbindungsvorrichtung zum Verbinden mit einer Gegenverbindungsvorrichtung eines weiteren Rotorwellenmoduls aufweist, wobei die zumindest eine Verbindungsvorrichtung durch den Modulkörper gebildet ist. Durch die Verbindungsvorrichtung ist es möglich, eine noch sicherere Verbindung zwischen verschiedenen Rotorwellenmodulen einer aus Rotorwellenmodulen aufgebauten Rotorwelle herzustellen. Dabei kann ein Rotorwellenmodul selbstverständlich auch mehrere derartige Verbindungsvorrichtungen und darüber hinaus auch eine oder mehrere derartige Gegenverbindungsvorrichtung aufweisen, so dass alle zu den Koppelvorrichtungen beschriebenen Varianten und die dadurch erzielbaren Vorteile auch durch Verbindungsvorrichtungen und Gegenverbindungsvorrichtungen erzielt werden können. Dabei können die Verbindungsvorrichtungen bzw. die Gegenverbindungsvorrichtung insbesondere für eine genaue Positionierung des einzelnen Rotorwellenmodule gegeneinander verwendet werden, da die Kraftübertragung zwischen den Rotorwellenmodulen erfindungsgemäß im Wesentlichen durch die Koppelvorrichtungen und Gegenkoppelvorrichtungen, die durch die Einlegeelement gebildet sind, erzeugt werden. Die geringen Fertigungstoleranzen der Verbindungsvorrichtungen, wie sie gemäß dem Stand der Technik bekannt sind, können dadurch vermieden werden, wodurch die Herstellung der Rotorwellenmodule erleichtert werden kann.A rotor shaft module according to the invention can moreover be designed such that the rotor shaft module has at least one connection device for connection to a mating connection device of a further rotor shaft module, wherein the at least one connection device is formed by the module body. The connecting device makes it possible to produce an even more secure connection between different rotor shaft modules of a rotor shaft constructed from rotor shaft modules. Of course, a rotor shaft module may also have a plurality of such connection devices and moreover also one or more such mating connection device, so that all variants described with respect to the coupling devices and the advantages that can be achieved thereby can also be achieved by connecting devices and mating connection devices. In this case, the connection devices or the mating connection device can be used in particular for accurate positioning of the individual rotor shaft modules against each other, since the power transmission between the rotor shaft modules according to the invention essentially by the coupling devices and counter coupling devices, which are formed by the insert element, are generated. The low manufacturing tolerances of the connecting devices, as are known in the prior art, can be avoided thereby, whereby the production of the rotor shaft modules can be facilitated.
Besonders bevorzugt kann bei einem erfindungsgemäßen Rotorwellenmodul vorgesehen sein, dass das elektrisch isolierende Material des Modulkörpers ein Kunststoffmaterial ist, und/oder dass das Einlegeelement aus Metall und/oder einem Faserverbundwerkstoff besteht. Kunststoffmaterialien sind elektrisch isolierende Materialien, die leicht, einfach und vielseitig verarbeitbar sind. Insbesondere können derartige Kunststoffmaterialien auch in einem Spritzgussverfahren eingesetzt werden, wodurch eine große Bandbreite an möglichen Formvarianten für Rotorwellenmodule ermöglicht ist. Erfindungswesentlich am zweiten Material des Einlegeelements ist, dass es eine höhere Festigkeit als das erste Material des Modulkörpers aufweist. Metalle und/oder Faserverbundwerkstoffe stellen derartige Materialien dar. Als Metall kann für das Einlegeelement dabei selbstverständlich auch eine Metalllegierung eingesetzt werden. Metalle und/oder Faserverbundwerkstoffe sind Materialien mit einer hohen Festigkeit, insbesondere auch gegen Drehbelastungen. Durch die Eigenschaft eines erfindungsgemäßen Rotorwellenmoduls, dass das Einlegeelement aus Metall und/oder einem Faserverbundwerkstoff besteht, kann somit sichergestellt werden, dass durch ein erfindungsgemäßes Rotorwellenmodul höhere Drehkräfte übertragen werden können als durch Rotorwellenmodule gemäß dem Stand der Technik. Zum einen kann dadurch die Schaltsicherheit eines Kompaktleistungsschalters, in dem ein derartiges Rotorwellenmodul eingesetzt ist, erhöht werden, wobei andererseits gleichzeitig eine mögliche Stromstärke bzw. eine Höhe der schaltbaren Leistung des Kompaktleistungsschalters erhöht werden kann.In a rotor shaft module according to the invention, it may be particularly preferred that the electrically insulating material of the module body is a plastic material, and / or that the insert element is made of metal and / or a metal Fiber composite material exists. Plastic materials are electrically insulating materials that are lightweight, easy and versatile to process. In particular, such plastic materials can also be used in an injection molding process, whereby a wide range of possible shape variants for rotor shaft modules is made possible. Essential to the invention on the second material of the insert element is that it has a higher strength than the first material of the module body. Metals and / or fiber composite materials represent such materials. As the metal, it is of course also possible to use a metal alloy for the insert element. Metals and / or fiber composites are materials with a high strength, especially against rotational loads. By virtue of the property of a rotor shaft module according to the invention that the insert element consists of metal and / or a fiber composite material, it can thus be ensured that higher rotational forces can be transmitted by a rotor shaft module according to the invention than by rotor shaft modules according to the prior art. On the one hand, the switching reliability of a molded case circuit breaker in which such a rotor shaft module is used, can be increased, on the other hand simultaneously a possible current or a height of the switchable power of the molded case circuit breaker can be increased.
Besonders bevorzugt kann bei einem erfindungsgemäßen Rotorwellenmodul ferner vorgesehen sein, dass das Rotorwellenmodul in einem Formverfahren, insbesondere einem Spritzgussverfahren, hergestellt ist, wobei das Einlegeelement durch das elektrisch-isolierende Material des Modulkörpers umformt, insbesondere umspritzt, ist. Durch ein Umformen des Einlegeelements mit dem elektrisch isolierenden ersten Material des Modulkörpers ist eine besonders gute Fixierung des Einlegeelements am und insbesondere im Modulkörper ermöglicht. Besonders bevorzugt ist dabei das erste Material ein Kunststoffmaterial und das Formverfahren ein Kunststoffformverfahren. Besonders bevorzugt ist das Formverfahren darüber hinaus ein Spritzgussverfahren. Dabei kann insbesondere ein Anordnen des Einlegeelements in eine Spritzgussform vorgesehen sein, die im Anschluss daran im Spritzgussvorgang mit dem elektrisch isolierenden Material des Modulkörpers ausgefüllt wird. Selbstverständlich ist auch ein zweikomponentiges Spritzgussverfahren denkbar, bei dem als erster Schritt das Einlegeelement, beispielsweise aus einem Faserverbundwerkstoff, in einer Spritzgussform erzeugt und im Anschluss daran dieses Einlegeelement mit dem elektrisch isolierenden ersten Material des Modulkörpers im zweiten Schritt umspritzt wird. Eine besonders sichere Fixierung des Einlegeelements im Modulkörper kann dadurch erzeugt werden. Darüber hinaus können durch den Einsatz eines Spritzgussverfahrens hohe Stückzahlen der Modulkörper auf besonders einfache und kostengünstige Art und Weise erzeugt werden.Particularly preferably, in a rotor shaft module according to the invention it can further be provided that the rotor shaft module is produced in a molding process, in particular an injection molding process, wherein the insert element is formed, in particular extrusion-coated, by the electrically insulating material of the module body. By forming the insert element with the electrically insulating first material of the module body, a particularly good fixation of the insert element on and in particular in the module body is made possible. Particularly preferred is the first material is a plastic material and the molding process is a plastic molding process. In addition, the molding process is more preferably an injection molding process. In particular, an arranging the insertion element may be provided in an injection mold, which is subsequently filled in the injection molding process with the electrically insulating material of the module body. Of course, a two-component injection molding process is conceivable in which the first step, the insert element, for example of a fiber composite material, produced in an injection mold and subsequently this insert element is overmolded with the electrically insulating first material of the module body in the second step. A particularly secure fixation of the insert element in the module body can be generated thereby. In addition, can be produced in a particularly simple and cost-effective manner by the use of an injection molding process high numbers of module body.
Gemäß einem zweiten Aspekt der Erfindung wird die Aufgabe gelöst durch eine Rotorwelle für einen Kompaktleistungsschalter, aufweisend zumindest zwei gekoppelte Rotorwellenmodule. Eine erfindungsgemäße Rotorwelle ist dadurch gekennzeichnet, dass die zumindest zwei Rotorwellenmodule jeweils gemäß dem ersten Aspekt der Erfindung ausgebildet sind. Sämtliche Vorteile, die zu einem Rotorwellenmodul gemäß dem ersten Aspekt der Erfindung beschrieben worden sind, ergeben sich somit selbstverständlich auch für eine erfindungsgemäße Rotorwelle, die derartige Rotorwellenmodule gemäß dem ersten Aspekt der Erfindung aufweist.According to a second aspect of the invention, the object is achieved by a rotor shaft for a molded case circuit breaker, comprising at least two coupled rotor shaft modules. A rotor shaft according to the invention is characterized in that the at least two rotor shaft modules are each formed according to the first aspect of the invention. All the advantages which have been described for a rotor shaft module according to the first aspect of the invention thus naturally also result for a rotor shaft according to the invention which has such rotor shaft modules according to the first aspect of the invention.
In einem dritten Aspekt der Erfindung wird die Aufgabe gelöst durch einen Kompaktleistungsschalter mit einer Rotorwelle. Ein erfindungsgemäßer Kompaktleistungsschalter ist dabei dadurch gekennzeichnet, dass die Rotorwelle gemäß dem zweiten Aspekt der Erfindung ausgebildet ist. Eine derartige Rotorwelle gemäß dem zweiten Aspekt der Erfindung weist Rotorwellenmodule gemäß dem ersten Aspekt der Erfindung auf. Sämtliche Vorteile, die zu einer Rotorwelle gemäß dem zweiten Aspekt der Erfindung bzw. zu einem Rotorwellenmodul gemäß dem ersten Aspekt der Erfindung beschrieben worden sind, ergeben sich somit selbstverständlich auch für einen erfindungsgemäßen Kompaktleistungsschalter, der eine derartige Rotorwelle gemäß dem zweiten Aspekt der Erfindung mit Rotorwellenmodulen gemäß dem ersten Aspekt der Erfindung aufweist.In a third aspect of the invention, the object is achieved by a molded case circuit breaker with a rotor shaft. An inventive compact circuit breaker is characterized in that the rotor shaft is formed according to the second aspect of the invention. Such a rotor shaft according to the second aspect of the invention comprises rotor shaft modules according to the first aspect of the invention. All the advantages which have been described for a rotor shaft according to the second aspect of the invention or to a rotor shaft module according to the first aspect of the invention thus naturally also result for a device according to the invention Compact circuit breaker having such a rotor shaft according to the second aspect of the invention with rotor shaft modules according to the first aspect of the invention.
Darüber hinaus wird gemäß einem vierten Aspekt der Erfindung die Aufgabe gelöst durch ein Verfahren zur Herstellung eines Rotorwellenmoduls gemäß dem ersten Aspekt der Erfindung für eine Rotorwelle eines Kompaktleistungsschalters. Ein erfindungsgemäßes Verfahren ist dadurch gekennzeichnet, dass das Einlegeelement mit dem elektrisch isolierenden ersten Material des Modulkörpers in einem Formverfahren umformt wird. Besonders bevorzugt ist dabei das erste Material ein Kunststoffmaterial und das Formverfahren ein Kunststoffformverfahren. Durch ein Umformen des Einlegeelements durch das elektrisch isolierende erste Material des Modulkörpers kann das Einlegeelement besonders gut am und insbesondere im Modulkörper fixiert werden. Die Fixierung wird dabei direkt durch das elektrisch isolierende erste Material des Modulkörpers bereitgestellt, so dass zusätzliche Fixierelemente nicht benötigt werden. Die Fixierung des Einlegeelements am bzw. im Modulkörper wird dadurch erleichtert bei gleichzeitiger Steigerung der Sicherheit der erzeugten Fixierung. Darüber hinaus können dabei selbstverständlich mit einem Verfahren zur Herstellung eines Rotorwellenmoduls gemäß dem ersten Aspekt der Erfindung sämtliche Vorteile erreicht werden, die in Bezug auf ein Rotorwellenmodul gemäß dem ersten Aspekt der Erfindung beschrieben worden sind.Moreover, according to a fourth aspect of the invention, the object is achieved by a method for producing a rotor shaft module according to the first aspect of the invention for a rotor shaft of a molded case circuit breaker. An inventive method is characterized in that the insert element is formed with the electrically insulating first material of the module body in a molding process. Particularly preferred is the first material is a plastic material and the molding process is a plastic molding process. By forming the insert element by the electrically insulating first material of the module body, the insert element can be fixed particularly well on and in particular in the module body. The fixation is provided directly by the electrically insulating first material of the module body, so that additional fixing elements are not needed. The fixation of the insert element on or in the module body is thereby facilitated while increasing the security of the fixation produced. In addition, of course, with a method for manufacturing a rotor shaft module according to the first aspect of the invention, all the advantages described with respect to a rotor shaft module according to the first aspect of the invention can be achieved.
Besonders bevorzugt kann in einer Weiterentwicklung eines erfindungsgemäßen Verfahrens vorgesehen sein, dass das Formverfahren ein Spritzgussverfahren ist und dass das Einlegeelement mit dem elektrisch isolierenden ersten Material des Modulkörpers umspritzt wird. Ein Spritzgussverfahren ist dabei ein besonders vielseitiges Formverfahren und darüber hinaus eine besonders einfache Art und Weise, ein erfindungsgemäßes Rotorwellenmodul gemäß dem ersten Aspekt der Erfindung herzustellen. Das Einlegeelement wird dabei in eine Spritzgussform eingelegt und mit dem elektrisch isolierenden ersten Material des Modulkörpers umspritzt. Eine besonders sichere Fixierung des Einlegeelements im Modulkörper kann dadurch erreicht werden. Darüber hinaus können durch den Einsatz eines Spritzgussverfahrens hohe Stückzahlen der Modulkörper auf besonders einfache und kostengünstige Art und Weise erzeugt werden. Selbstverständlich ist dabei auch ein zweikomponentiges Spritzgussverfahren möglich, bei dem als erster Schritt das Einlegeelement, beispielsweise aus einem Faserverbundwerkstoff, in einer Spritzgussform erzeugt und im Anschluss daran dieses Einlegeelement mit dem elektrisch isolierenden ersten Material des Modulkörpers im zweiten Schritt umspritzt wird.In a further development of a method according to the invention, it may be particularly preferred for the molding method to be an injection molding method and for the insert element to be overmolded with the electrically insulating first material of the module body. An injection molding process is a particularly versatile molding process and moreover a particularly simple way of producing a rotor shaft module according to the invention in accordance with the first aspect of the invention. The insert element is inserted into an injection mold and with the electrically insulating first material the module body overmoulded. A particularly secure fixation of the insert element in the module body can be achieved. In addition, can be produced in a particularly simple and cost-effective manner by the use of an injection molding process high numbers of module body. Of course, a two-component injection molding process is also possible, in which the insert element, for example of a fiber composite material, is produced in an injection mold as a first step and subsequently this insert element is overmoulded with the electrically insulating first material of the module body in the second step.
Ein erfindungsgemäßes Rotorwellenmodul, eine erfindungsgemäße Rotorwelle sowie ein erfindungsgemäßer Kompaktleistungsschalter sowie deren Weiterbildungen und Vorteile werden nachfolgend anhand von Zeichnungen näher erläutert. Es zeigt schematisch:
- Fig. 1
- einen erfindungsgemäßen Kompaktleistungsschalter,
- Fig. 2
- Rotorwellenmodule gemäß dem Stand der Technik,
- Fig. 3a,b,c
- verschiedene Ansichten eines erfindungsgemäßen Rotorwellenmoduls und
- Fig. 4a,b
- eine erfindungsgemäße Rotorwelle.
- Fig. 1
- a molded case circuit breaker according to the invention,
- Fig. 2
- Rotor shaft modules according to the prior art,
- Fig. 3a, b, c
- different views of a rotor shaft module according to the invention and
- Fig. 4a, b
- a rotor shaft according to the invention.
Elemente mit gleicher Funktion und Wirkungsweise sind dabei jeweils mit denselben Bezugszeichen versehen.Elements with the same function and mode of action are each provided with the same reference numerals.
Die
Die erfindungsgemäßen Rotorwellenmodule 1 weisen wiederum einen Modulkörper 2 auf, der insbesondere eine Aufnahme 3 für ein Kontaktelement 21 (nicht mit abgebildet) eines Kompaktleistungsschalters 20 aufweist. Erfindungswesentlich ist, dass ein erfindungsgemäßes Rotorwellenmodul 1 ferner ein Einlegeelement 5 aufweist und eine Kraftübertragung zwischen den Rotorwellenmodulen 1 im zusammengebauten Zustand zur Rotorwelle 10 durch Koppelvorrichtungen 6 und Gegenkoppelvorrichtungen 7 der Einlegeelemente 5 vorgenommen wird. Die Modulkörper 2 müssen diese Aufgabe nicht mehr übernehmen und sind, wie sichtbar in
Eine derartige erfindungsgemäße Rotorwelle 10 ist in den
- 11
- RotorwellenmodulRotor shaft module
- 22
- Modulkörpermodule body
- 33
- Aufnahmeadmission
- 44
- Verbindungsvorrichtungconnecting device
- 55
- Einlegeelementinsertion element
- 66
- Koppelvorrichtungcoupling device
- 77
- GegenkoppelvorrichtungAgainst coupling device
- 88th
- GegenverbindungsvorrichtungAgainst connecting device
- 1010
- Rotorwellerotor shaft
- 2020
- KompaktleistungsschalterMolded Case Circuit Breakers
- 2121
- Kontaktelementcontact element
- 2222
- Schaltschlossswitch lock
- 2323
- Festkontaktfixed contact
- 2424
- KontaktsystemContact system
- 2525
- erster Anschlussfirst connection
- 2626
- zweiter Anschlusssecond connection
Claims (11)
- Rotor shaft module (1) for a rotor shaft (10) of a molded-case circuit breaker (20), having a module body (2) consisting of an electrically insulating first material, wherein the module body (2) has a receptacle (3) for a contact element (21) of the molded-case circuit breaker (20), and the rotor shaft module (1) has at least one coupling apparatus (6) for connection to an opposing coupling apparatus (7) of a further rotor shaft module (1),
wherein
the rotor shaft module (1) has an insert element (5) which is fixed on the module body (2), wherein the insert element (5) comprises a second material, which has a higher strength than the first material, wherein the insert element (5) is completely spaced apart from the receptacle (3) by the electrically insulating first material of the module body (2), and wherein the at least one coupling apparatus (6) is formed by the insert element (5), wherein the rotor shaft module (1) has at least one opposing coupling apparatus (7), wherein the at least one opposing coupling apparatus (7) is formed by the insert element (5),
characterized
in that the at least one coupling apparatus (6) and the at least one opposing coupling apparatus (7) are arranged at different axial ends of the rotor shaft module (1). - Rotor shaft module (1) according to Claim 1,
characterized
in that the insert element (5) is arranged at least partially in the interior of the module body (2). - Rotor shaft module (1) according to one of the preceding claims,
characterized
in that the insert element (5) is arranged in the form of a frame around the receptacle (3). - Rotor shaft module (1) according to one of the preceding claims,
characterized
in that the insert element (5) has two or more coupling apparatuses (6) and two or more opposing coupling apparatuses (7). - Rotor shaft module (1) according to one of the preceding claims,
characterized
in that the rotor shaft module (1) has at least one connecting apparatus (4) for connection to an opposing connecting apparatus (8) of a further rotor shaft module (1), wherein the at least one connecting apparatus (4) is formed by the module body (2). - Rotor shaft module (1) according to one of the preceding claims,
characterized
in that the electrically insulating material of the module body (2) is a plastics material and/or in that the insert element (5) consists of metal and/or a fiber composite material. - Rotor shaft module (1) according to one of the preceding claims,
characterized
in that the rotor shaft module (1) is produced in a molding method, in particular an injection molding method, wherein the electrically insulating material of the module body (2) is formed, in particular by injection molding, around the insert element (5). - Rotor shaft (10) for a molded-case circuit breaker (20) having at least two coupled rotor shaft modules (1), characterized
in that the at least two rotor shaft modules (1) are each designed according to one of the preceding claims. - Molded-case circuit breaker (20) comprising a rotor shaft (10),
characterized
in that the rotor shaft (10) is designed according to Claim 8. - Method for producing a rotor shaft module (1) according to one of Claims 1 to 7 for a rotor shaft (10) of a molded-case circuit breaker (20),
characterized
in that the electrically insulating first material of the module body (2) is formed around the insert element (5) in a forming process. - Method for producing a rotor shaft module (1) according to Claim 10,
characterized
in that the forming process is an injection-molding process, and in that the electrically insulating first material of the module body (2) is injection-molded around the insert element (5).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014204750.1A DE102014204750A1 (en) | 2014-03-14 | 2014-03-14 | Rotor shaft module for a rotor shaft of a molded case circuit breaker, rotor shaft for a molded case circuit breaker, molded case circuit breaker and method for producing a rotor shaft module for a rotor shaft of a molded case circuit breaker |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2919246A1 EP2919246A1 (en) | 2015-09-16 |
EP2919246B1 true EP2919246B1 (en) | 2016-10-19 |
Family
ID=52002814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14196006.2A Not-in-force EP2919246B1 (en) | 2014-03-14 | 2014-12-03 | Rotor shaft module support for a rotor shaft of a compact circuit breaker, rotor shaft for a compact circuit breaker, compact circuit breaker and method for producing a rotor shaft module for a rotor shaft of a compact circuit breaker |
Country Status (4)
Country | Link |
---|---|
US (1) | US10014134B2 (en) |
EP (1) | EP2919246B1 (en) |
CN (1) | CN104952639B (en) |
DE (1) | DE102014204750A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016212737A1 (en) * | 2016-07-13 | 2018-01-18 | Siemens Aktiengesellschaft | Polkassette for an electrical switch and electrical switch with Polkassetten |
CN108172430B (en) * | 2018-02-07 | 2023-11-21 | 河南森源电气股份有限公司 | Automatic assembly line of isolator |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5874699A (en) * | 1997-09-18 | 1999-02-23 | Eaton Corporation | Molded case circuit breaker and moving conductor assembly therefor |
DE19910032C1 (en) * | 1999-03-08 | 2000-04-06 | Moeller Gmbh | Multiple pole switch for power switching, has chamber housing containing adjacent switch chambers with common switch shaft, in which each chamber has interacting fixed, pivotable contacts |
IT1314039B1 (en) * | 1999-10-08 | 2002-12-03 | Abb Ricerca Spa | ELECTRIC POLE FOR LOW VOLTAGE POWER SWITCH. |
DE10062761A1 (en) * | 2000-12-13 | 2002-06-20 | Siemens Ag | Movable contact carrier for holding contact levers for low-voltage circuit breakers |
US6965292B2 (en) | 2003-08-29 | 2005-11-15 | General Electric Company | Isolation cap and bushing for circuit breaker rotor assembly |
CN101399137B (en) | 2007-09-25 | 2011-06-29 | 浙江正泰电器股份有限公司 | Low-voltage plastic case breakers |
US9129768B2 (en) * | 2009-10-15 | 2015-09-08 | Siemens Aktiengesellschaft | Multipole electrical switching device |
DE102012201939B4 (en) * | 2012-02-09 | 2021-08-05 | Siemens Aktiengesellschaft | Switching unit for an electrical switching device |
-
2014
- 2014-03-14 DE DE102014204750.1A patent/DE102014204750A1/en not_active Withdrawn
- 2014-12-03 EP EP14196006.2A patent/EP2919246B1/en not_active Not-in-force
- 2014-12-29 US US14/583,845 patent/US10014134B2/en not_active Expired - Fee Related
-
2015
- 2015-03-16 CN CN201510113431.3A patent/CN104952639B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US10014134B2 (en) | 2018-07-03 |
CN104952639A (en) | 2015-09-30 |
US20150262772A1 (en) | 2015-09-17 |
EP2919246A1 (en) | 2015-09-16 |
DE102014204750A1 (en) | 2015-09-17 |
CN104952639B (en) | 2019-11-08 |
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