Epcos Ag

Siemens Matsushita Components Gmbh & Co Kg

Werner Kahr

Jan Ihle

Volker Wischnat

Bernhard Steinberger

Steffen Mehlig

Markus Rath

Helmut Poelzl

Helmut Pölzl

A heating device is provided, comprising a shaped body, which has at least two regions comprising different compositions of a ceramic material with a positive temperature coefficient of electrical resistance. A method for manufacturing a heating device is furthermore specified.

Heating device and method for manufacturing the heating device

A mold (), which has a first region () comprising an electroceramic material and a second region () comprising a structural ceramic material, is provided. A heating device with this mold is also specified. Furthermore, a method for producing a mold is provided.

Molded object, heating device and method for producing a molded object

A heating module includes a housing with an opening, and a PTC ceramic heating element arranged in the housing having an inner face facing toward the opening, an outer face facing away from the opening and two end faces connecting the inner and outer faces, wherein the inner face is at least partially matched to the opening.

Heating module and vaporization apparatus having a heating module

A ceramic material has the following composition: (BaM)O.z(TiM)O.D.E. In this composition, (BaM)=A and (TiM)=B, where Mstands for at least one element selected from: Mg, Ca, Sr, Pb and mixtures thereof; Mstands for at least one element selected from: Sn, Zr and mixtures thereof; D stands for at least one element having donor properties; E stands for at least one element having acceptor properties. The following applies for the parameters: 0&#x2266;x&#x2266;0.6; 0&#x2266;y&#x2266;0.35; 0&#x2266;d&#x2266;0.02; 0&#x2266;e&#x2266;0.02; 1&#x3c;z; and the following applies for the molar ratio of B to A: 1&#x3c;B/A. The ceramic material comprises Si only as an impurity.

Ceramic material, method for producing the ceramic material, and resistor component comprising the ceramic material

A heating element with a ceramic body that has PTC properties is specified. The heating element has electrodes that are arranged on ceramic body. Both the ceramic body and the electrodes are lead-free.

Heating element

An electrical protective device is described which has two PTC thermistor components which are in the form of plates and are arranged in a common housing. The housing in each case has an opening on two opposite sides, which opening corresponds to the dimensions of the PTC thermistor components such that the PTC thermistor components can be inserted into the housing through the openings. The two PTC thermistor components are electrically isolated from one another in the housing. The PTC thermistor components each have at least two connecting wires, by means of which the PTC thermistor components are locked to the housing.

Electrical protective device

An electrical assembly includes at least two PTC-resistor elements, each of which has a base body having a flat shape. Each base body has main surfaces that contain electrodes. A carrier plate has spacers for positioning base bodies of the at least two PTC resistor elements. A width each spacer is about equal, in at least one area, to a distance between facing electrodes of adjacent PTC-resistor elements.

Electrical assembly with PTC resistor elements

A PTC-resistor includes a base body made of a ceramic material with a positive temperature coefficient of resistance. The base body extends along a median plane, and is confined by surfaces. At least one surface is configured to electrically connect the base body. An area of the at least one surface is larger than an area of a parallel projection of the base body in a direction perpendicular to the median plane.

PTC-resistor

A resistor arrangement with resistor elements is specified that are arranged essentially regularly and that are spaced apart from each other and that are interconnected by a flexible substrate. According to a first preferred embodiment, intermediate spaces that are provided to carry a flow of flowing medium are arranged between the resistor elements. According to a second preferred embodiment, the resistor elements are arranged between two flexible substrates and are rigidly connected to these substrates. According to a third preferred embodiment, an electrically insulating adhesive layer that has openings through which the resistor elements are conductively connected to the substrate is arranged between the resistor elements and the substrate. According to a fourth preferred embodiment, the substrate is composed of, as a ground material, an elastic plastic that is filled with electrically conductive particles. In addition, a method for producing the resistor arrangement is specified.

Resistor arrangement and method for producing a resistor arrangement

An electrical assembly includes a housing and at least two PTC (Positive Temperature Coefficient) resistor elements in the housing. Each of the at least two PTC resistor elements includes a body having a flat construction and electrodes on main surfaces of the body. Each of the at least two PTC resistor elements includes an electrically insulating envelope. The housing is closed.

A resistor element with a ceramic body that has PTC properties is specified. At least one main surface of the ceramic body has an arrangement of depressions.

Resistor element with PTC properties and high electrical and thermal conductivity

According to a first preferred embodiment, a resistor arrangement with resistor elements is specified whose first electrodes are conductively connected to each other by means of a flexible, conductive connection element that is curved. The connection element has changes in curvature in the regions arranged between two adjacent resistor elements. According to a second preferred embodiment, a resistor arrangement with resistor elements is specified that are connected to each other by a flexible connection element. The resistor elements each have an arrangement of slot-like recesses.

Resistor arrangement

A PCT thermistor arrangement for use in a circuit for demagnetizing shadowmasks of color picture tubes, has at least two PTC thermistor elements which are designed as switching PTC thermistors, are or can be thermally coupled and are or can be electrically connected in parallel.

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Deutschlandsberg, Austria

Werner Kahr