Device comprising a housing, an electrical circuit in the housing, and an electrically conductive connection between the housing and the circuit

Patent metadata

Field	Value
Publication number	US-12062949-B2
Application number	US-202117547981-A
Country	US
Kind code	B2
Filing date	Dec 10, 2021
Priority date	Dec 11, 2020
Publication date	Aug 13, 2024
Grant date	Aug 13, 2024

Abstract

A device with a housing electrically conductive at least in regions, with an electrical circuit in the housing, with an electrically conductive connection between an electrically conductive region of the housing and the circuit, and with a holder made up of an insulator, which is arranged in the housing and to which at least parts and/or components of the electrical circuit are attached. At least one electrically conductive spring element, which is attached in or to the holder and which has a first end protruding beyond the holder and bearing against the housing with a spring force, is provided for establishing the electrically conductive connection between the electrically conductive region of the housing and the circuit.

First claim

What is claimed is:

1. A device comprising:
a housing electrically conductive at least in regions;
an electrical circuit arranged in the housing;
an electrically conductive connection between an electrically conductive region of the housing and the electrical circuit;
a holder made up of an insulator, which is arranged in the housing and to which at least parts and/or components of the electrical circuit are attached; and
at least one electrically conductive spring element attached in or to the holder, the electrically conductive spring element having a first end protruding beyond the holder and bearing against the housing with a spring force, such that the electrically conductive spring element establishes the electrically conductive connection between the electrically conductive region of the housing and the electrical circuit,
wherein a distal end of the first end of the electrically conductive spring element projects in a direction towards an inner wall of the housing and bears against the inner wall of the housing.

2. The device according to claim 1 , wherein the electrically conductive spring element has a second end which protrudes beyond the holder and is electrically conductively connected to the electrical circuit.

3. The device according to claim 2 , wherein the electrical circuit, a part of the electrical circuit, and/or a component of the electrical circuit are attached to the second end of the electrically conductive spring element.

4. The device according to claim 3 , wherein the second end of the electrically conductive spring element forms a press-fit pin.

5. The device according to claim 4 , wherein the electrical circuit has a circuit board which has a hole with which the circuit board is plugged onto the press-fit pin formed by the second end.

6. The device according to claim 5 , wherein the housing has multiple parts and wherein the circuit board is attached to a first part of the housing.

7. The device according to claim 1 , wherein the holder is a plastic injection-molded part and a part or a component of the electrical circuit is completely or partially overmolded by the plastic of the holder.

8. The device according to claim 7 , wherein the electrically conductive spring element is electrically insulated from the part or the component of the electrical circuit that is overmolded by the plastic of the holder.

9. The device according to claim 1 , wherein the device comprises an electric motor, and wherein a stator of the electric motor is a component of the electrical circuit.

10. The device according to claim 9 , wherein the holder is a plastic injection-molded part and wherein the stator is completely or partially overmolded by the plastic of the holder.

Assignees

• Hella Gmbh & Co Kgaa

Inventors

• Feldkamp Horst
• Goessmann Georg
• Praest Christian
• Schulte Christoph
• Grothe Benjamin

Classifications

• H02K2203/03

  Machines characterised by the wiring boards, i.e. printed circuit boards or similar structures for connecting the winding terminations · CPC title

• H02K3/522

  for generally annular cores with salient poles · CPC title

• H02K5/08

  Insulating casings · CPC title

• H02K5/225

  Terminal boxes or connection arrangements (specially adapted for submersible motors H02K5/132) · CPC title

• H01R13/02

  Contact members · CPC title