Temperature measuring assembly and electrical device

Patent metadata

Field	Value
Publication number	US-10837841-B2
Application number	US-201715674676-A
Country	US
Kind code	B2
Filing date	Aug 11, 2017
Priority date	Aug 12, 2016
Publication date	Nov 17, 2020
Grant date	Nov 17, 2020

Abstract

A temperature measuring assembly and an electrical device. The temperature measuring assembly includes a heat conducting element and a temperature measuring element. The heat conducting element is arranged for conducting heat of a to-be-measured device. The temperature measuring element is thermally conductive with the heat conducting element so as to measure a temperature signal of the to-be-measured device according to the heat conducted by the heat conducting element and output the temperature signal to an output connecting element. The heat conducting element and the temperature measuring element are elements separately formed and may be connected as an integral element. The heat conducting element of the temperature measuring assembly has a good insulation and thermal conduction performance and is particularly suitable for measuring the temperature of the to-be-measured device and capable of shortening a temperature measurement response time of the temperature measuring element.

First claim

What is claimed is:

1. A temperature measuring assembly for measuring the temperature of a device, comprising:
a heat conducting element for conducting heat from the device to be measured, the heat conducting element having a contacting surface in direct contact to a contact area of the device; and
a temperature measuring element arranged to be thermally conductive with the heat conducting element so as to measure a temperature signal of the device according to the heat conducted by the heat conducting element and output the temperature signal to an output connecting element;
the output connecting element being a flexible flat cable which includes two electrically conductive layers, the electrically conductive layers having first electrically conductive surfaces and second electrically conductive surfaces disposed back-to-back, the first electrically conductive surface being configured to be connected with the temperature measuring element and the second electrically conductive surface being provided to be in face-to-face contact with the heat conducting element;
wherein the heat conducting element and the temperature measuring element are formed separately.

2. The temperature measuring assembly according to claim 1 , wherein the heat conducting element is a ceramic element.

3. The temperature measuring assembly according to claim 1 , wherein the heat conducting element has a first heat conducting face and a second heat conducting face, which are disposed back-to-back;
the first heat conducting face is arranged to be thermally conductive with the temperature measuring element; and
the second heat conducting face is arranged to be thermally conductive with the device.

4. The temperature measuring assembly according to claim 1 , wherein the output connecting element is arranged to extend between the temperature measuring element and the heat conducting element.

5. The temperature measuring assembly according to claim wherein the first electrically conductive surface is configured to be connected with the temperature measuring element by welding.

6. The temperature measuring assembly according to claim 1 , wherein the two electrically conductive layers are disposed at an interval; and the temperature measuring element is arranged to at least partially extend into contact with the heat conducting element.

7. The temperature measuring assembly according to claim 1 , further comprising a sealing connection element; wherein the sealing connection element is in contact with the heat conducting element and the temperature measuring element, and integrally connects the heat conducting element and the temperature measuring element.

8. The temperature measuring assembly according to claim 7 , wherein a thermal conductivity of the heat conducting element is greater than that of the sealing connection element.

9. The temperature measuring assembly according to claim 7 , wherein the sealing connection element is arranged to cover and enclose the temperature measuring element so as to seal the temperature measuring element.

10. The temperature measuring assembly according to claim 7 , wherein the sealing connection element is a cured body of a liquid glue or a cured body of a melt silicone liquid.

11. The temperature measuring assembly according to claim 1 , further comprising a holding frame that has a mounting cavity, wherein said temperature measuring elements is accommodated in the mounting cavity.

12. The temperature measuring assembly according to claim 11 , wherein one end of the mounting cavity has a mounting opening, and at least part of the heat conducting element is accommodated in the mounting cavity from the mounting opening.

13. The temperature measuring assembly according to claim 11 , further comprising an output connecting element, wherein the output connecting element is electrically connected to the temperature measuring element.

14. The temperature measuring assembly according to claim 11 , wherein a limiting notch is provided on one side wall of the holding frame; the limiting notch is arranged to be in communication with the mounting cavity, and part of the output connecting element is provided in the limiting notch.

15. The temperature measuring assembly according to claim 11 , further comprising a sealing connection element that is accommodated in the mounting cavity, wraps up and seals the temperature measuring element.

16. An electrical device, comprising the device and the temperature measuring assembly according to claim 1 , wherein the device is arranged to be in thermal conduction with the heat conducting element.

17. The electrical device according to claim 16 , wherein device is a bus-bar.

18. A temperature measuring assembly for measuring the temperature of a device, the temperature measuring assembly comprising:
a heat conducting element for conducting heat from the device to be measured, the heat conducting element having a contacting surface in direct contact to a contact area of the device;
an output connecting element having an electrically conductive portion, the output connecting element being a flexible flat cable which includes two electrically conductive layers, the electrically conductive layers having a first electrically conductive surface and a second electrically conductive surface disposed back-to-back, the first electrically conductive surface is configured to be connected with the temperature measuring element;
a temperature measuring element arranged to be thermally conductive with the heat conducting element so as to measure a temperature signal of the device according to the heat conducted by the heat conducting element, the temperature measuring element being electrically connected to the second electrically conductive surface of the output connecting element to output the temperature signal;
a sealing connection element fixing the temperature measuring element onto the heat conducting element;
wherein the heat conducting element and the temperature measuring element are formed separately.

Assignees

• Tyco Electronics Shanghai Co Ltd

Inventors

• Sun Pengcheng

Classifications

• G01K1/18

  for reducing thermal inertia · CPC title

• G01K1/16 Primary

  Special arrangements for conducting heat from the object to the sensitive element · CPC title

• G01K7/22

  the element being a non-linear resistance, e.g. thermistor (G01K7/26 takes precedence) · CPC title