Measuring assembly for measuring temperature and voltage

Patent metadata

Field	Value
Publication number	US-11585855-B2
Application number	US-202117209295-A
Country	US
Kind code	B2
Filing date	Mar 23, 2021
Priority date	Mar 25, 2020
Publication date	Feb 21, 2023
Grant date	Feb 21, 2023

Abstract

A measuring assembly for measuring a temperature and a voltage includes a contact element including a temperature sensor and an electrically conductive portion, a voltage measurement conductor electrically connected to the conductive portion of the contact element, and an electrically conductive fixation element electrically connected to the conductive portion of the contact element, the electrically conductive fixation element extending through a fixation hole of a busbar in a fixed state to connect to the busbar by an elastic force provided by the electrically conductive fixation element in the fixed state, and the electrically conductive fixation element pressing the contact element to a measuring surface of the busbar by the elastic force in the fixed state.

First claim

What is claimed is:

1. A measuring assembly for measuring a temperature and a voltage, the measuring assembly comprising:
a contact element including a temperature sensor and an electrically conductive portion;
a voltage measurement conductor electrically connected to the conductive portion of the contact element; and
an electrically conductive fixation element electrically connected to the conductive portion of the contact element, the electrically conductive fixation element extending through a fixation hole of a busbar in a fixed state to connect to the busbar by an elastic force provided by the electrically conductive fixation element in the fixed state, and the electrically conductive fixation element being bent out of the fixation hole to contact and press the contact element to a measuring surface of the busbar by the elastic force in the fixed state.

2. The measuring assembly as claimed in claim 1 , wherein the contact element further includes a contact side which, in the fixed state, contacts the busbar via a planar contact.

3. The measuring assembly as claimed in claim 1 , wherein the contact element further includes an insulator between the temperature sensor and the voltage measurement conductor, and between the temperature sensor and sides of the conductive portion.

4. The measuring assembly as claimed in claim 3 , wherein the insulator is an epoxy resin.

5. The measuring assembly as claimed in claim 1 , wherein the fixation element is a metal sheet.

6. The measuring assembly as claimed in claim 1 , wherein the voltage measurement conductor is connected to the contact element by a weld.

7. The measuring assembly as claimed in claim 1 , wherein the conductive portion of the contact element and the fixation element are integral with each other.

8. A battery system comprising the measuring assembly as claimed in claim 1 .

9. An electrical vehicle including the battery system as claimed in claim 8 .

10. The measuring assembly as claimed in the claim 1 , wherein the electrically conductive fixation element includes:
a shaft portion; and
a bent portion integral with the shaft portion, the bent portion being bent from a top of the shaft portion.

11. The measuring assembly as claimed in the claim 10 , wherein the electrically conductive fixation element further includes a tip portion integral with and bent from a bottom of the shaft portion, the tip portion and the bent portion being at opposite ends of the shaft portion.

12. The measuring assembly as claimed in claim 1 , wherein the electrically conductive fixation element is a flexible metal sheet, the flexible metal sheet being bent to define an empty space in the fixation hole between facing portions of the flexible metal sheet.

13. A measuring assembly for measuring a temperature and a voltage, the measuring assembly comprising:
a contact element including a temperature sensor and an electrically conductive portion;
a voltage measurement conductor electrically connected to the conductive portion of the contact element; and
an electrically conductive fixation element electrically connected to the conductive portion of the contact element, the electrically conductive fixation element extending through a fixation hole of a busbar in a fixed state to connect to the busbar by an elastic force provided by the electrically conductive fixation element in the fixed state, and the electrically conductive fixation element pressing the contact element to a measuring surface of the busbar by the elastic force in the fixed state,
wherein the fixation element includes:
a shaft portion extending through the fixation hole in the fixed state; and
a bent portion connected to the shaft portion, the bent portion being bent from the shaft portion toward the contact element, and the contact element being connected to an end of the bent portion.

14. The measuring assembly as claimed in claim 13 , wherein a bottom of the end of the bent portion is parallel to a bottom of the contact element, the end of the bent portion contacting the busbar in the fixed state and/or is oriented parallel to the measuring surface of the busbar.

15. The measuring assembly as claimed in claim 14 , wherein the bent portion curves from the shaft portion toward a bottom of the contact element, an inner space being defined between the bent portion and the busbar in the fixed state.

16. The measuring assembly as claimed in the claim 13 , wherein the fixation element further includes a tip portion connected to the shaft portion, the tip portion and the bent portion being at opposite ends of the shaft portion, a width of the tip portion being greater than a width of the shaft portion, and the width of the tip portion being greater than a width of the fixation hole in the fixed state such that the busbar is clamped between the contact element and the tip portion in the fixed state.

17. The measuring assembly as claimed in claim 16 , wherein the tip portion includes a widening portion which widens with respect to the shaft portion, and a narrowing portion which narrows toward a tip of the tip portion from the widening portion.

18. The measuring assembly as claimed in claim 13 , wherein a contact direction of a bottom of the contact element is tilted with respect to an axis of the shaft portion, such that an acute angle is defined between the axis of the shaft portion and the contact direction.

Assignees

• Samsung Sdi Co Ltd

Inventors

• Köppel Andreas
• Haring Fritz

Classifications

• G01R1/0416 Primary

  Connectors, terminals (G01R1/0425 and G01R1/0433 take precedence; with measurement function for battery poles G01R31/364) · CPC title

• H01M10/48

  Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569) · CPC title

• H01M10/486

  for measuring temperature · CPC title

• H01M50/502

  Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing · CPC title

• G01R31/3835

  involving only voltage measurements · CPC title