Electrical connection terminal having a metal leaf spring actuated by a shift member and an elastic unit

Patent metadata

Field	Value
Publication number	US-9466894-B2
Application number	US-201514923766-A
Country	US
Kind code	B2
Filing date	Oct 27, 2015
Priority date	Dec 31, 2014
Publication date	Oct 11, 2016
Grant date	Oct 11, 2016

Abstract

An electrical connection terminal structure includes: a main body defining a chamber; a metal leaf spring disposed in the chamber, the metal leaf spring being movable with the motion of a shift member to press a conductive wire into electrical connection or release the conductive wire; and an elastic unit mounted in the chamber. When the metal leaf spring is released from the pressing of the shift member to release the conductive wire from the pressing, the elastic unit normally makes the metal leaf spring and the shift member move toward a position where the conductive wire is released. This improves the shortcoming of the conventional electrical connection terminal that when released, the metal leaf spring is apt to interfere with the conductive wire and make it hard to extract the conductive wire out of the main body.

First claim

What is claimed is:

1. An electrical connection terminal structure comprising:
a main body defining a chamber, the main body having a wire inlet in communication with the chamber;
a shift member having a pivoted end pivotally connected with the main body and an operation end, the shift member being reciprocally movable between an opened position and a closed position, the shift member further having a press section;
a metal leaf spring disposed in the chamber, the metal leaf spring having a first section and a second section, the first section having a head end, the second section having a tail end, the first section being in contact with the press section of the shift member, whereby the press section can press and move the first section of the metal leaf spring; and
an elastic unit mounted in the chamber, the elastic unit having a fixed end and a free end, the fixed end being fixedly mounted on the main body, when the metal leaf spring is released from the pressing of the press section of the shift member, the free end normally making the shift member and the metal leaf spring move toward the opened position.

2. The electrical connection terminal structure as claimed in claim 1 , wherein the elastic unit is defined with a first side and a second side, the elastic unit having a fixed end extending from the first side, a bent section being connected with the fixed end and extending from the fixed end, the elastic unit having a free end extending from the second side, the free end having an oblique section and a bent section connected with the oblique section, the elastic unit being mounted on a post in the chamber of the main body, the bent section of the free end being in contact with a lower side of the first section of the metal leaf spring, the fixed end of the elastic unit being leant against a stop section of the main body.

3. The electrical connection terminal structure as claimed in claim 2 , wherein the oblique section of the elastic unit integrally extends from the free end to the first side of the elastic unit and an upper side, the bent section of the free end being bent from the oblique section and extending from the oblique section to the second side of the elastic unit, the bent section of the fixed end of the elastic unit being bent from the first side to the second side, the stop section having a guide angle.

4. The electrical connection terminal structure as claimed in claim 1 , wherein the elastic unit is defined with a first side and a second side, the elastic unit having a free end extending from the first side, the free end including a bent section and a curved section connected with the bent section, the elastic unit further having a fixed end extending from the second side, the elastic unit being mounted on a post in the chamber of the main body, the curved section of the free end being in contact with a lower side of the first section of the metal leaf spring, the fixed end of the elastic unit being leant against a stop section of the main body.

5. The electrical connection terminal structure as claimed in claim 4 , wherein the bent section of the free end of the elastic unit is an arched structure, the bent section of the free end integrally extending from the first side of the elastic unit to an upper side and then being bent and extending to the second side of the elastic unit, the curved section being bent and extending to the second side and a lower side to form a tail section connected with the curved section.

6. The electrical connection terminal structure as claimed in claim 1 , wherein the press section of the shift member is a cantilever structure protruding from the pivoted end, a terminal pin being mounted in the chamber, the terminal pin being for inserting on a circuit board, the wire inlet of the main body being for a conductive wire to be inserted into the chamber and pressed by the tail end of the metal leaf spring to electrically connect with the terminal pin.

7. The electrical connection terminal structure as claimed in claim 2 , wherein the press section of the shift member is a cantilever structure protruding from the pivoted end, a terminal pin being mounted in the chamber, the terminal pin being for inserting on a circuit board, the wire inlet of the main body being for a conductive wire to be inserted into the chamber and pressed by the tail end of the metal leaf spring to electrically connect with the terminal pin.

8. The electrical connection terminal structure as claimed in claim 3 , wherein the press section of the shift member is a cantilever structure protruding from the pivoted end, a terminal pin being mounted in the chamber, the terminal pin being for inserting on a circuit board, the wire inlet of the main body being for a conductive wire to be inserted into the chamber and pressed by the tail end of the metal leaf spring to electrically connect with the terminal pin.

9. The electrical connection terminal structure as claimed in claim 4 , wherein the press section of the shift member is a cantilever structure protruding from the pivoted end, a terminal pin being mounted in the chamber, the terminal pin being for inserting on a circuit board, the wire inlet of the main body being for a conductive wire to be inserted into the chamber and pressed by the tail end of the metal leaf spring to electrically connect with the terminal pin.

10. The electrical connection terminal structure as claimed in claim 5 , wherein the press section of the shift member is a cantilever structure protruding from the pivoted end, a terminal pin being mounted in the chamber, the terminal pin being for inserting on a circuit board, the wire inlet of the main body being for a conductive wire to be inserted into the chamber and pressed by the tail end of the metal leaf spring to electrically connect with the terminal pin.

11. The electrical connection terminal structure as claimed in claim 1 , wherein at least one side of the press section of the shift member is formed with a shoulder section having an arched configuration, a damping section being disposed in the main body corresponding to the shoulder section of the shift member, the damping section being formed with an arched recessed face, whereby when the shift member is moved to the opened position, the damping section interferes with the shoulder section.

12. The electrical connection terminal structure as claimed in claim 2 , wherein at least one side of the press section of the shift member is formed with a shoulder section having an arched configuration, a damping section being disposed in the main body corresponding to the shoulder section of the shift member, the damping section being formed with an arched recessed face, whereby when the shift member is moved to the opened position, the damping section interferes with the shoulder section.

13. The electrical connection terminal structure as claimed in claim 3 , wherein at least one side of the press section of the shift member is formed with a shoulder section having an arched configuration, a damping section being disposed in the main body corresponding to the shoulder section of the shift member, the damping section being formed with an arched recessed face, whereby when the shift member is moved to the opened position, the damping section interferes with the shoulder section.

14. The electrical connection terminal structure as claimed in claim 4 , wherein at least one side of the press section of the shift member is formed with a shoulder section having an arched configuration.

15. The electrical connection terminal structure as claimed in claim 5 , wherein at least one side of the press section

Assignees

• Switchlab Inc
• Switchlab (Shanghai) Co Ltd

Inventors

• Wu Chih-Yuan
• Chen Wei-Chi

Classifications

• H01R12/515

  Terminal blocks providing connections to wires or cables · CPC title

• H01R13/42

  Securing in a demountable manner · CPC title

• H01R4/4863

  Coil spring · CPC title

• H01R4/4836 Primary

  Electricity · mapped topic

• H01R4/4835

  Mechanically bistable arrangements, e.g. locked by the housing when the spring is biased · CPC title