Rail terminal assembling structure

Patent metadata

Field	Value
Publication number	US-10910737-B2
Application number	US-201816018322-A
Country	US
Kind code	B2
Filing date	Jun 26, 2018
Priority date	Sep 13, 2016
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

A rail terminal assembling structure includes a protection member formed with an assembling passage defined by a contact side section, a connection side section and two lateral sections. The connection side section has a first locating section, an elastic locating section and a second locating section. An end section of a conductive plate extends into the assembling passage and securely attached to the contact side section. A metal leaf spring has a first section, a second section and an elastic bight section connected between the first and second sections. The first section has a first located section and an insertion section. When the first section extends into the assembling passage and the first section elastically pushes/presses the elastic locating section until the insertion section reaches the elastic locating section, the elastic locating section is elastically engaged with the insertion section.

First claim

What is claimed is:

1. A rail terminal assembling structure comprising:
a protection member composed of a contact side section, a connection side section opposite to the contact side section and two lateral sections disposed between the connection side section and the contact side section, the contact side section, the connection side section and the lateral sections together defining an assembling passage passing through the protection member, the assembling passage having a wire inlet, the protection member having a first locating section and a second locating section disposed at one end of the protection member distal from the first locating section, an elastic locating section being disposed between the first and second locating sections;
a conductive plate, an end section of the conductive plate extending into the assembling passage of the protection member and securely attaching to an inner surface of the contact side section; and
a metal leaf spring having a first section, a second section and an elastic bight section connected between the first and second sections, whereby the metal leaf spring is a U-shaped member, the first section being connected with an inner surface of the connection side section of the protection member, a first located section being disposed on the first section of the metal leaf spring near the elastic bight section, in addition, a second located section being disposed on the first section in a position corresponding to the second locating section, an insertion section being disposed between the first and second located sections corresponding to the elastic locating section, whereby when the first section extends into the assembling passage corresponding to the connection side section until the insertion section reaches the elastic locating section, the elastic locating section is engaged into the insertion section and the first located section is securely assembled with the first locating section and the second locating section cooperatively secures the second located section of the first section of the metal leaf spring so that the metal leaf spring and the protection member are securely assembled with each other and the second section of the metal leaf spring extends in a direction to the contact side section and the conductive plate.

2. The rail terminal assembling structure as claimed in claim 1 , wherein the insertion section has the form of a locating hole and the elastic locating section is a protruding elastic tongue section, whereby the first section elastically pushes/presses the elastic locating section and permits the elastic locating section to be elastically engaged into the insertion section, the second section of the metal leaf spring having an end section abutting against the conductive plate, a maximum displacement amount of the first section of the metal leaf spring in response to an external action force being limited within a movable range together defined by an assembling structure of the elastic locating section and the insertion section and the second locating section and the second located section.

3. The rail terminal assembling structure as claimed in claim 2 , wherein the first locating section is lateral notches and the first located section is outward expanding lateral protrusion sections disposed on two sides of the first section near a middle section, the second located section of the metal leaf spring being disposed at a tail end of the first section, a tail end of the second section being formed with an arched end section bent toward the contact side section, the conductive plate being respectively formed with lateral recesses near two lateral sides of two end sections, the lateral recesses being fittable with a portion of the two lateral sections of the protection member in adjacency to the contact side section with the conductive plate attached to the inner side of the contact side section, whereby the protection member is located and hindered from moving in an axial direction of the conductive plate, a lateral surface of the conductive plate distal from the contact side section forming an inner face, the two end sections of the conductive plate being respectively formed with arched edges extending in a direction away from the assembling passage.

4. The rail terminal assembling structure as claimed in claim 3 , wherein the second locating section is a stop plate downward bent from an edge of the connection side section toward the assembling passage, the stop plate being formed with a perforation on one side near the connection side section, the second locating section serving to stop the tail end of the first section of the metal leaf spring to make the second located section inserted into the perforation, the first located section being securely connected with the first locating section, the first locating section, the elastic locating section and the perforation of the second locating section being connected with the first located section, the insertion section and the second located section, whereby the first section of the metal leaf spring and the connection side section of the protection member form a multi-portion locating system.

5. The rail terminal assembling structure as claimed in claim 3 , wherein a middle section of the second locating section is punched and formed with an upward protruding elastic tongue section protruding toward the connection side section, a gap being reserved between the upward protruding elastic tongue section and the connection side section, two lateral stop sections being respectively disposed on the two lateral sections near an edge of the second locating section, the lateral stop sections being bent toward the assembling passage, the two lateral stop sections being positioned on two lateral outer sides of the second locating section, the second locating section serving to stop the tail end of the first section of the metal leaf spring and the tail end of the first section or the second located section being directly inserted in the gap between the upward protruding elastic tongue section and the connection side section, the first located section being securely connected with the first locating section, the first locating section, the elastic locating section and the upward protruding elastic tongue section of the second locating section being connected with the first located section, the insertion section and the second located section, whereby the first section of the metal leaf spring and the connection side section of the protection member form a multi-portion locating system.

6. The rail terminal assembling structure as claimed in claim 3 , wherein the second locating section is a bent plate extending into the assembling passage and bent toward the first locating section, two lateral stop sections being respectively disposed on the two lateral sections near a lateral edge of the second locating section, the lateral stop sections being bent toward the assembling passage, the lateral stop sections respectively abutting against a bottom side of the second locating section, the second locating section holding the tail end of the first section of the metal leaf spring or the second located section, the first located section being securely connected with the first locating section.

7. The rail terminal assembling structure as claimed in claim 3 , wherein two lateral stop sections are respectively disposed on the two lateral sections of the second locating section on a lateral edge distal from the first locating section, the lateral stop sections being bent toward the assembling passage, a gap being reserved between the second locating section and the connection side section, the second located section of the first section directly passing through the gap, the first located section being connected w

Assignees

• Switchlab Inc
• Switchlab Shanghai Co Ltd

Inventors

• Wu Chih-Yuan
• Chen Wei-Chi
• Tai Ming-Shan

Classifications

• H01R4/484

  Spring housing details · CPC title

• H01R4/4821

  Single-blade spring · CPC title

• H01R9/26 Primary

  Clip-on terminal blocks for side-by-side rail- or strip-mounting · CPC title

• H01R9/2608 Primary

  Fastening means for mounting on support rail or strip (H01R9/2691 takes precedence; for switch or other electrical device H02B1/042) · CPC title

• H01R9/2416

  Means for guiding or retaining wires or cables connected to terminal blocks · CPC title