Electric heater with housing
First Claim
1. An auxiliary electric heater for automotive vehicles, comprisinga housing which is made open on longitudinal faces thereof, anda layered structure includingat least one PTC heating element,a radiator element,contact sheets for power supply, anda resilient element, the layered structure being kept clamped in the housing by the resilient element,wherein an opening is provided in a lateral face of the housing for inserting the resilient element.
1 Assignment
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Accused Products
Abstract
The present invention relates to a novel constructional principle for electric heaters, wherein the functions of frame and resilient means are separated from one another. As a frame for an electric heater, a housing is used that consists of two half-shells. Positioning aids for the PTC heating elements are arranged in the housing. The longitudinal sides of the housing are essentially made open to allow for air throughput through the heating register. A resilient device is additionally inserted into the housing, the resilient device compressing the layered structure of radiator elements, PTC heating elements and contact sheets. After the heater has been assembled, the resilient device can be inserted through a lateral opening into the heater.
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Citations
42 Claims
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1. An auxiliary electric heater for automotive vehicles, comprising
a housing which is made open on longitudinal faces thereof, and a layered structure including at least one PTC heating element, a radiator element, contact sheets for power supply, and a resilient element, the layered structure being kept clamped in the housing by the resilient element, wherein an opening is provided in a lateral face of the housing for inserting the resilient element.
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24. A housing for an auxiliary heater for automotive vehicles, the housing comprising:
a housing structure for receiving a layered structure including at least one PTC heating element, a radiator element, contact sheets for power supply, and a resilient element, wherein the housing structure has a lateral opening for insertion of the resilient element. - View Dependent Claims (25, 26, 27, 28, 29, 30, 41)
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31. An auxiliary electric heater for an automotive vehicle, the electric heater comprising:
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a housing having open longitudinal faces; and a layered structure including of at least one PTC heating element, a radiator element, contact sheets for power supply, and a resilient element, the layered structure being clamped in the housing by the resilient element, wherein an opening is provided in a lateral face of the housing for inserting the resilient element. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 42)
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39. An auxiliary electric heater for an automotive vehicle, the electric heater comprising:
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a housing having open longitudinal faces; and a layered structure including of at least one PTC heating element, a radiator element, contact sheets for power supply, and a resilient element, the layered structure being clamped in the housing by the resilient element, wherein an opening is provided in a lateral face of the housing for inserting the resilient element, wherein the resilient element is configured such that it transmits the clamping forces essentially onto reinforced longitudinal sides of the housing, and wherein the sides of the housing are reinforced by longitudinal struts, and further comprising at least one seal for sealing the longitudinal struts relative to the PTC heating elements.
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Specification