Unlock instant, AI-driven research and patent intelligence for your innovation.

Detection of temperature in connectors by means of superimposed test frequency

A frequency and temperature change technology, applied to thermometers, thermometers using electric/magnetic elements that are directly sensitive to heat, and parts of thermometers, can solve the problems of costing sensors and receiving units

Active Publication Date: 2018-01-02
HEIDELBERGER DRUCKMASCHINEN AG
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this device is that complex sensors and receiver units have to be provided here

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Detection of temperature in connectors by means of superimposed test frequency
  • Detection of temperature in connectors by means of superimposed test frequency
  • Detection of temperature in connectors by means of superimposed test frequency

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] figure 1 A charging cable for an electric vehicle is shown, which has a current conductor L1 and a neutral conductor N. In addition, a protective conductor PE is provided. The electrical power is transmitted from the grid via the charging cable to the electric vehicle via the plug connector. In order to detect the temperature in the plug connector at the end of the charging cable, a temperature sensor 5, 6 is mounted on the conductor end in the plug connector, which detects the temperature in the conductor L1 and the neutral conductor N . The temperature sensors 5 , 6 can here be formed either capacitively by means of a variable capacitor 5 a or inductively by means of a variable inductance 6 a. The variable capacitance 5 a and the variable inductance 6 a are temperature dependent, so that a change in temperature causes a change in capacitance or inductance. The charging cable also has a so-called on-cable control box 1 for safety and communication functions. The u...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a device for detecting the temperature in a current conductor (L1, N) by means of at least one temperature sensor (5, 6), which outputs a signal whose frequency changes due to the temperature change. The invention is characterized in that the signal of the temperature sensor (5, 6) is conveyed via the current conductor (L1, N) and that the signal is coupled inductively or capacitively from the current conductor (L1, N) via the coupling element (4, 8). Out to the analysis and processing device (2) for temperature detection.

Description

technical field [0001] The invention relates to a device for detecting the temperature in a current conductor by means of at least one temperature sensor which outputs a signal whose frequency changes due to the temperature change. Background technique [0002] In current conductors and plug connectors that have to transmit high electrical power, heating can occur during operation. This heating must not exceed the permissible maximum temperature, since otherwise there would be a danger to the environment or damage to the conductors and the plug connectors. The power transmission must therefore be interrupted if an impermissible temperature is exceeded by actuating corresponding switches and disconnecting the cable from the grid. Such a situation often arises when the battery is being charged, especially in electric vehicles. In order to keep the charging time in electric vehicles as short as possible, very high electrical powers are transmitted, which leads to a correspond...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01K7/00G01K7/34
CPCG01K7/34G01K1/14G01K7/36H01R13/6683
Inventor M·克吕格尔J·赖特尔A·舒尔茨T·沃尔夫
Owner HEIDELBERGER DRUCKMASCHINEN AG