Electrical switch
View Patent ↗An electrical switch has a switch body, actuators, and switch contacts, and at least one moving contact member having first and second ends. Elongate cam sliders extend side-by-side in the switch body, between the actuators and the moving contact member, for sliding lengthwise by the actuators to cause pivotal movement of the moving contact member about the first end such that the second end is moved into and out of contact with at least one of the switch contacts. The first and second ends of the moving contact member lie in a plane extending parallel to the longitudinal extent of the cam sliders, or extend parallel to the length of the cam sliders.
1. An electrical switch comprising:
a switch body having upper and lower body interiors;
a plurality of actuators located in the upper body interior;
a plurality of switch contacts located in the lower body interior;
a plurality of first moving contact members having first and second ends, switching respective switch contacts, located in the lower body interior, and extending side-by-side, substantially in a first direction, with the first ends of the first moving contact members integrally inter-connected, and
a plurality of second moving contact members having first and second ends, switching respective switch contacts, located in the lower body interior, and extending side-by-side substantially in a second direction, with the first ends of the second moving contact members integrally inter-connected, wherein the first and second directions are opposite directions; and
a plurality of elongate cam sliders extending side-by-side in a plane of longitudinal extent in the switch body, located between the actuators and the pluralities of first and second moving contact members, for sliding lengthwise by the actuators to act upon and cause pivotal movement of the pluralities of first and second moving contact members, about the first ends of the pluralities of first and second moving contact members, so that the second ends of the pluralities of first and second moving contact members are moved into and out of contact with at least one of the switch contacts, wherein the first and second ends of the pluralities of first and second moving contact members lie in a plane extending substantially parallel to the plane of the longitudinal extent of the cam sliders.
2. The electrical switch as claimed in claim 1 , wherein
the pluralities of first and second moving contact members have intermediate parts located between the first and second ends, and
the pluralities of first and second moving contact members are acted upon, about the intermediate parts, by at least one of the cam sliders.
3. The electrical switch as claimed in claim 2 , wherein the pluralities of first and second moving contact members are bent about the intermediate parts.
4. The electrical switch as claimed in claim 2 , wherein the intermediate parts of the pluralities of first and second moving contact members comprise a protrusion acted upon by at least one of the cam sliders.
5. The electrical switch as claimed in claim 3 , wherein the pluralities of first and second moving contact members have a generally planar inverted V-shape.
6. The electrical switch as claimed in claim 1 , wherein the second ends of the pluralities of first and second moving contact members are positioned directly opposite the switch contacts.
7. The electrical switch as claimed in claim 1 , wherein
at least one of the cam sliders has a cam part for acting upon at least one of the contact members of the pluralities of first and second moving contact members, and
the cam part is arranged to approach and act upon at least one of the contact members of the pluralities of first and second moving contact members in a direction parallel to a direction in which the pluralities of first and second moving contact members extend from the first end to the second end.
8. The electrical switch as claimed in claim 7 , wherein the cam part has an inclined side for approaching and acting upon at least one of the contact members of the pluralities of first and second moving contact members.
9. The electrical switch as claimed in claim 1 , comprising a circuit board on which the switch body is mounted and a control circuit mounted on the circuit board.
10. The electrical switch as claimed in claim 9 , wherein
the switch contacts are located on the circuit board,
the pluralities of first and second moving contact members are mounted on the circuit board, and
the switch contacts and the pluralities of first and second moving contact members are part of the control circuit.
11. The electrical switch as claimed in claim 9 , wherein the switch body comprises a switch case and the circuit board, with the circuit board closing the switch case.
12. The electrical switch as claimed in claim 9 , wherein
the control circuit includes a semiconductor device and a plurality of circuit components connectable to the semiconductor device for controlling operation of the semiconductor device, and
the circuit components are connectable to the semiconductor device via the pluralities of first and second moving contact members and at least one of the switch contacts.
13. The electrical switch as claimed in claim 12 , the first and second moving contact members are equal in number to the plurality of circuit components, each first and second moving contact member connecting a respective circuit component to the semiconductor device.