Rotary switch

Patent metadata

Field	Value
Publication number	US-10650990-B2
Application number	US-201715815998-A
Country	US
Kind code	B2
Filing date	Nov 17, 2017
Priority date	May 21, 2015
Publication date	May 12, 2020
Grant date	May 12, 2020

Abstract

A rotary switch includes a rotation movable portion, a movable conductor held in the rotation movable portion, a base portion, a power supply terminal held in the base portion, and a plurality of fixed contacts held in the base portion. The fixed contact and the power supply terminal are connected and disconnected via the movable conductor by a rotational operation of the rotation movable portion. The power supply terminal is disposed at a rotation center position of the rotation movable portion. The plurality of fixed contacts are disposed on a plurality of concentric circles having different diameter dimensions around the power supply terminal.

First claim

The invention claimed is:

1. A rotary switch comprising:
a rotation movable portion;
a movable conductor held in rotation movable portion;
a base portion;
a power supply terminal held in the base portion; and
a plurality of fixed contacts held in the base portion,
wherein the fixed contact and the power supply terminal are connected and disconnected via the movable conductor by a rotational operation of the rotation movable portion,
wherein the power supply terminal is disposed at a rotation center position of the rotation movable portion,
wherein the plurality of fixed contacts are disposed at positions where the shortest distances from a rotation center of the rotation movable portion are different,
wherein when the movable conductor and the plurality of fixed contacts are in contact with each other, switching is ON, when the movable conductor and the plurality of fixed contacts are separated from each other, switching is OFF,
wherein the movable conductor includes a power supply contact in pressed contact with the power supply terminal at one end portion and a single movable contact at the other end portion, and
wherein the shortest distances are distances between each of the fixed contacts and the rotation center of the rotation movable portion.

2. The rotary switch according to claim 1 ,
wherein a movable contact, which is in contact with or separated from only the fixed contact corresponding to a rotation of the rotation movable portion, is provided in the movable conductor.

3. The rotary switch according to claim 1 ,
wherein a concave portion is provided in the base portion to surround each of the fixed contacts.

4. The rotary switch according to claim 1 ,
wherein a plurality of the movable conductors, including a power supply contact pressed to be in contact with the power supply terminal at one end portion and a single movable contact at the other end portion, are movably held in the rotation movable portion and independent with each other.

5. The rotary switch according to claim 2 ,
wherein the movable contact has a predetermined length and each of the fixed contacts is formed in a linear shape.

6. The rotary switch according to claim 1 ,
wherein the movable conductor includes a plurality of the movable conductors, and
wherein the plurality of fixed contacts are respectively applied to the plurality of the movable conductors.

7. The rotary switch according to claim 1 ,
wherein the movable conductor includes a plurality of the movable conductors, and
wherein the plurality of the movable conductors are held in accommodation grooves formed in the rotation movable portion.

8. The rotary switch according to claim 1 ,
wherein the movable conductor includes a plurality of the movable conductors, and
wherein the plurality of the movable conductors are urged to a surface side of the base portion by the rotation movable portion.

9. The rotary switch according to claim 1 ,
wherein the movable conductor includes a plurality of the movable conductors, and
wherein each of the plurality of the movable conductors has a substantially linear shape.

Assignees

• Alpha Corp

Inventors

• Okada Takahiro

Classifications

• H01H19/02

  Details · CPC title

• H01H1/44

  with resilient mounting · CPC title

• H01H19/08 Primary

  Bases; Stationary contacts mounted thereon · CPC title

• H01H19/14

  Operating parts, e.g. turn knob · CPC title

• H01H19/58

  having only axial contact pressure, e.g. disc switch, wafer switch · CPC title