Switch wire connection device

Patent metadata

Field	Value
Publication number	US-9922778-B2
Application number	US-201615295023-A
Country	US
Kind code	B2
Filing date	Oct 17, 2016
Priority date	Oct 19, 2015
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

A switch wire connection device has a simplified structure and is easy to operate with enhanced stability of operation. The switch wire connection device includes a conductive component mounted in an insulation case, a switch pushbutton assembled with the conductive component and an electrical contact. The electrical contact has a restriction unit and a contact plate connected with the restriction unit. By means of operating the pushbutton, the conductive component is driven to selectively electrically contact or separate from the contact plate. The restriction unit is divided into a first space and a second space, in which a first leg section and a second leg section of a metal leaf spring are respectively assembled. The wiring circuits or conductive wires can be easily directly plugged into the first and second spaces of the restriction unit and held by the first and second leg sections.

First claim

What is claimed is:

1. A switch wire connection device comprising an insulation case and a switch pushbutton assembled with the insulation case, the case having a cavity for receiving the switch pushbutton, the switch pushbutton being assembled with a conductive component and a spring, the case being formed with wire sockets in communication with the cavity, an electrical contact being disposed in the cavity of the case, the electrical contact having a restriction unit and a contact plate connected with the restriction unit, the contact plate having a first end and a second end, the first end being connected with the restriction unit, the switch pushbutton serving to control the conductive component into electrical contact with the second end of the contact plate or separation from the second end of the contact plate, the restriction unit being formed with a first space and a second space for receiving a metal leaf spring, the metal leaf spring including a first section and a second section, the first section being assembled with the restriction unit and together mounted in the cavity of the case, the second section having a first leg section and a second leg section, the first and second leg section being respectively swingably received in the first and second spaces of the restriction unit.

2. The switch wire connection device as claimed in claim 1 , wherein the wire sockets are formed on lower end sections of two sides of the case, two side by side conductive wires being allowed to respectively plug through the wire sockets into the first and second spaces of the restriction unit, whereby the first and second leg sections of the metal leaf spring respectively presses the side by side conductive wires against the first end of the contact plate, the plug-in angle of the conductive wires being equal to the inclination angle of the first end of the contact plate, an operation hole being formed at a lower end of the case in communication with the cavity and the first and second spaces of the restriction unit.

3. The switch wire connection device as claimed in claim 1 , wherein the restriction unit and the contact plate are formed as an integrated structure.

4. The switch wire connection device as claimed in claim 1 , wherein the restriction unit has a first side, a second side connected with the first side, a third side connected with the second side and a fourth side connected with the third side, the first, second, third and fourth sides together forming a cuboidal frame structure, the fourth side being bent toward the second side and extending to forma fifth side, the fifth side and the first side being positioned on the same plane, at least one of the first and fifth sides being bent toward the third side and extending to format least one subsidiary side between the first and second spaces.

5. The switch wire connection device as claimed in claim 4 , wherein the first end of the contact plate has a first finger section and a second finger section, the first and second finger sections being respectively connected with the first and fifth sides of the restriction unit, the second end of the contact plate being an inclined and lifted structure and extending in a direction to contact the conductive component.

6. The switch wire connection device as claimed in claim 4 , wherein the restriction unit and the contact plate are formed as an integrated structure, the first finger section of the first end of the contact plate being integrally connected with the first side of the restriction unit, the second finger section of the first end of the contact plate being connected with the fifth side of the restriction unit.

7. The switch wire connection device as claimed in claim 4 , wherein the second end of the contact plate of the electrical contact is bent toward the restriction unit and extends to form a subsidiary end, the second end and the subsidiary end containing an acute angle, a right angle or an obtuse angle, the subsidiary end being further bent toward the conductive component and extends to form a tail end, the subsidiary end and the tail end containing an acute angle, a right angle or an obtuse angle, the switch pushbutton being operable to drive the conductive component into electrical contact with the tail end of the second end of the contact plate to power on or separation from the tail end of the second end of the contact plate to power off.

8. The switch wire connection device as claimed in claim 4 , wherein the wire sockets are formed on lower end sections of two sides of the case, two side by side conductive wires being allowed to respectively plug through the wire sockets into the first and second spaces of the restriction unit, whereby the first and second leg sections of the metal leaf spring respectively presses the side by side conductive wires against the first and second finger sections of the contact plate, the plug-in angle of the side by side conductive wires being respectively equal to the inclination angle of the first and second finger sections of the contact plate, an operation hole being formed at a lower end of the case in communication with the cavity and the first and second spaces of the restriction unit.

9. The switch wire connection device as claimed in claim 4 , wherein the metal leaf spring is in the form of a V-shaped body having an opening, the metal leaf spring including a bent section connected between the first and second sections, the first section having a head end and an assembling section assembled on an assembling section of the third side of the restriction unit, whereby the first section of the metal leaf spring is positioned in the restriction unit, the head end of the first section of the metal leaf spring and an upper end section of the third side of the restriction unit being together fixed in a recess of the cavity of the case, the bent section of the metal leaf spring being wound on a stake in the cavity of the case, whereby the opening of the metal leaf spring is directed to the conductive component and the second section of the metal leaf spring extends into the restriction unit and can swing within the restriction unit.

10. The switch wire connection device as claimed in claim 9 , wherein the second end of the contact plate of the electrical contact is bent toward the opening of the metal leaf spring and extends to form a subsidiary end, the second end and the subsidiary end containing an acute angle, a right angle or an obtuse angle, the subsidiary end being further bent toward the conductive component and extends to form a tail end, the subsidiary end and the tail end containing an acute angle, a right angle or an obtuse angle, the switch pushbutton being operable to drive the conductive component into electrical contact with the tail end of the second end of the contact plate to power on or separation from the tail end of the second end of the contact plate to power off.

11. The switch wire connection device as claimed in claim 4 , wherein the first side of the restriction unit is bent toward the third side and extends to form a first subsidiary side and the fifth side of the restriction unit is bent toward the third side and extends to form a second subsidiary side.

12. The switch wire connection device as claimed in claim 11 , wherein the first and second subsidiary sides are side by side arranged in parallel to each other, at least the second side and the first subsidiary side serving to help in restricting the moving path of the first leg section of the metal leaf spring and the fourth side and the second subsidiary side serving to help in restricting the moving path of the second leg section of the metal leaf spring.

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Assignees

• Switchlab Inc
• Switchlab Shanghai Co Ltd

Inventors

• Wu Chih-Yuan
• Wu Cherng Shin

Classifications

• H01H13/04

  Cases; Covers · CPC title

• H01H13/50

  having a single operating member · CPC title

• H01R9/2433

  with built-in switch · CPC title

• H01H1/58 Primary

  Electric connections to or between contacts; Terminals {(for high tension switches H01H33/025; for electromagnetic relays H01H50/14; for circuit breakers H01H71/08)} · CPC title

• H01R4/4842

  the spring housing being provided with a single opening for insertion of a spring-activating tool · CPC title