Electric connection structure and image forming apparatus

Patent metadata

Field	Value
Publication number	US-10601151-B2
Application number	US-201816215271-A
Country	US
Kind code	B2
Filing date	Dec 10, 2018
Priority date	Dec 12, 2017
Publication date	Mar 24, 2020
Grant date	Mar 24, 2020

Abstract

An electric connection structure includes: a connection terminal that includes a compression coil spring part; a terminal holding part that includes a base supporting one end surface side of the compression coil spring part and a guide part provided along an outer surface of the compression coil spring part; and a lead wire that includes a folded-back part in one end part. In the electric connection structure, the folded-back part is held between the one end surface of the compression coil spring part and a support part and two lines of the folded-back part are brought into contact with the connection terminal, and the connection terminal and the lead wire are thereby electrically connected.

First claim

What is claimed is:

1. An electric connection structure comprising:
a connection terminal that includes a compression coil spring part;
a terminal holding part that includes a base supporting one end surface side of the compression coil spring part and a guide part provided along an outer surface of the compression coil spring part; and
a lead wire that includes a folded-back part in one end part, wherein
the folded-back part is held between the one end surface of the compression coil spring part and the base and two lines of the folded-back part are brought into contact with the connection terminal, and the connection terminal and the lead wire are thereby electrically connected.

2. The electric connection structure according to claim 1 , wherein the terminal holding part includes a second locking part that locks the extending part from a direction orthogonal to an axial direction of the compression coil spring part.

3. The electric connection structure according to claim 1 , wherein
the connection terminal includes an extending part that extends outward from one end part of the compression coil spring part, and
the terminal holding part includes a first locking part that locks the extending part from another end surface side of the compression coil spring part.

4. The electric connection structure according to claim 3 , wherein the guide part includes a slit that extends in a circumferential direction of the guide part, and the slit is used as the first locking part.

5. The electric connection structure according to claim 4 , wherein the guide part includes an opening that communicates with one end part side of the slit.

6. The electric connection structure according to claim 5 , wherein the terminal holding part includes, in a boundary portion between the slit and the opening, a rib that projects from an outer surface of the guide part.

7. An image forming apparatus comprising the electric connection structure comprising an electric connection structure;
the electric connection structure comprising:
a connection terminal that includes a compression coil spring part;
a terminal holding part that includes a base supporting one end surface side of the compression coil spring part and a guide part provided along an outer surface of the compression coil spring part; and
a lead wire that includes a folded-back part in one end part, wherein
the folded-back part is held between the one end surface of the compression coil spring part and the base and two lines of the folded-back part are brought into contact with the connection terminal, and the connection terminal and the lead wire are thereby electrically connected.

8. The image forming apparatus according to claim 7 , wherein the electric connection structure is provided in a grounding path through which a pre-transfer paper insertion guide included in a transfer unit is grounded.

Assignees

• Sharp Kk

Inventors

• Nakamura Ginga

Classifications

• H01R13/6616

  with resistor · CPC title

• H01R35/025 Primary

  having a flexible conductor wound around a rotation axis · CPC title

• H01R4/64

  Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail · CPC title

• H01R4/4863 Primary

  Coil spring · CPC title

• H01R13/2421

  using coil springs · CPC title