Relay base

Patent metadata

Field	Value
Publication number	US-12573571-B2
Application number	US-202318133802-A
Country	US
Kind code	B2
Filing date	Apr 12, 2023
Priority date	Apr 13, 2022
Publication date	Mar 10, 2026
Grant date	Mar 10, 2026

Abstract

A relay base for connection to a plug-in relay is disclosed. The relay base comprises a plurality of connection units. Each connection unit comprises an electrically conductive socket member having a first end configured to receive a pin of the relay, an electrically conductive flexible connector having a first end that is electrically connected to a second end of the socket member, and an electrically conductive insert having a first end that is electrically connected to a second end of the flexible connector. A second end of the insert is configured as an electrical connectivity receptacle (e.g., a screw type terminal comprising a thread for receiving a screw). The configuration of the second end of the insert allows for facilitated making and breaking an electrical connection between the relay and an external wiring.

First claim

The invention claimed is:

1 . A relay base for connection to a plug-in relay, comprising a plurality of connection units, each connection unit comprising:
an electrically conductive socket member having a first end and a second end, the first end being configured to receive a pin of the relay; an electrically conductive flexible connector having a first end and a second end, the first end of the flexible connector being electrically connected to the second end of the socket member; and an electrically conductive insert having a first end and a second end, the first end of the insert being electrically connected to the second end of the flexible connector, wherein the second end of the insert is configured as an electrical connectivity receptacle.

2 . The relay base of claim 1 , wherein the electrical connectivity receptacle comprises a screw type terminal, comprising a thread for receiving a screw.

3 . The relay base of claim 2 , wherein the insert has a through-hole extending between the first end and the second end of the insert, wherein the thread of the second end of the insert is formed within the through-hole.

4 . The relay base of claim 2 , wherein the first end of the insert is configured as a further screw type terminal, comprising a thread for receiving a further screw for connecting the lug member.

5 . The relay base of claim 1 , further comprising a lug member for connecting the second end of the flexible connector to the first end of the insert.

6 . The relay base of claim 5 , wherein the second end of the flexible connector is connected to the lug member by a crimped connection.

7 . The relay base of claim 1 , wherein the socket member has a first main axis and the thread of the second end of the insert has a second main axis being parallel to the first main axis.

8 . The relay base of claim 7 , further comprising a top plate configured to prevent a movement of the socket member parallel to the first main axis, directing to the side of the pin.

9 . The relay base of claim 8 , further comprising a middle plate for supporting the socket member.

10 . The relay base of claim 9 , wherein the top plate is fixed to the middle plate by an ultrasonic welding connection.

11 . The relay base of claim 9 , wherein the middle plate and the top plate are configured to allow a rotation of the socket member about the first main axis.

12 . The relay base of claim 9 , further comprising a terminal plate for supporting the insert.

13 . The relay base of claim 12 , wherein the terminal plate, the middle plate, and the top plate are attached to each other to form a housing for the plurality of connection units.

14 . The relay base of claim 7 , wherein the first end of the insert comprises a flange.

15 . The relay base of claim 14 , wherein the flange is configured for fixing the insert in a direction parallel to the second main axis.

16 . The relay base of claim 14 , wherein the flange is configured for preventing a movement of the insert in a direction parallel to the second main axis.

17 . The relay base of claim 1 , wherein the first end of the flexible connector is connected to the second end of the socket member by a crimped connection.

18 . The relay base of claim 1 , further comprising a terminal plate for supporting the insert.

19 . The relay base of claim 18 , wherein the insert is fixed to the terminal plate by insert-molding the terminal plate around the insert.

20 . A relay kit, comprising
at least one relay base according to claim 1 , and at least one plug-in relay configured to be connected to the at least one relay base.

Assignees

• Hitachi Energy Ltd

Inventors

• Kotraiah Gurusiddaiah
• Aj Manjunath

Classifications

• H01H45/02 Primary

  Bases; Casings; Covers (frames for mounting two or more relays or for mounting a relay and another electric component H02B1/01, H04Q1/08, H05K) · CPC title

• H01R13/405

  Securing in non-demountable manner, e.g. moulding, riveting · CPC title

• H01H2050/049

  Assembling or mounting multiple relays in one common housing · CPC title

• H01H50/54

  Contact arrangements · CPC title

• H01H50/14

  Terminal arrangements {(for coils H01H50/443)} · CPC title