Pluggable touch-safe fuse module with built-in removal handle

Patent metadata

Field	Value
Publication number	US-9837235-B2
Application number	US-201514753909-A
Country	US
Kind code	B2
Filing date	Jun 29, 2015
Priority date	Jun 30, 2014
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

A touch-safe fuse module includes a built-in slidable handle movable between extended and retracted positions relating to a housing of the fuse module. In the extended position, the handle assists with removal of the fuse from a base housing assembly by improving mechanical leverage to apply extraction force to the housing. Fuse modules having high current ratings may be effectively removed by hand without separately provided tools.

First claim

What is claimed is:

1. A touch-safe fuse module comprising:
a single housing having a plurality of side walls collectively defining an exterior surface;
first and second terminal blades projecting from the single housing, the first and second terminal blades having a longitudinal axis;
at least one fuse element connected between the first and second terminal blades; and
a built-in removal handle attached to the exterior surface of the single housing at a plurality of locations and slidably movable upon the exterior surface at the plurality of locations along a single axis in a direction parallel to the longitudinal axis of the first and second terminal blades, the built-in removal handle positionable relative to the exterior surface in a first position and a second position assisting with removal of the fuse, the built-in removal handle comprising a grip portion and first and second legs depending from the grip portion and respectively attaching to the exterior surface of the single housing at one of the plurality of locations;
wherein the exterior surface of the single housing is formed with at least a first recessed surface and a second recessed surface, a portion of the first leg being received in the first recessed surface and a portion of the second leg being received in the second recessed surface.

2. The touch-safe fuse module of claim 1 , wherein the first and second legs are attached to opposing ones of the plurality of side walls of the single housing.

3. The touch-safe fuse module of claim 1 wherein the housing includes a top surface, the touch-safe fuse module further comprising a fuse state indicator visible on the top surface of the single housing.

4. The touch-safe fuse module of claim 3 , wherein the grip portion includes an opening revealing the fuse state indicator when the built-in removal handle is in the first position.

5. The touch-safe fuse module of claim 1 , wherein the first recessed surface and second recessed surface are formed on different ones of the plurality of side walls of the single housing.

6. The touch-safe fuse module of claim 1 , wherein the first recessed surface and second recessed surface are formed adjacent respective corners of the single housing.

7. A touch-safe fuse module comprising:
a single housing having a plurality of side walls collectively defining an exterior surface;
first and second terminal blades projecting from the single housing, the first and second terminal blades having a longitudinal axis;
at least one fuse element connected between the first and second terminal blades; and
a built-in removal handle attached to the exterior surface of the single housing at a plurality of locations and slidably movable upon the exterior surface at the plurality of locations along a single axis in a direction parallel to the longitudinal axis of the first and second terminal blades, the built-in removal handle positionable relative to the exterior surface in a first position and a second position assisting with removal of the fuse, the built-in removal handle comprising a grip portion and first and second legs depending from the grip portion and respectively attaching to the exterior surface of the single housing at one of the plurality of locations,
wherein each of the first and second legs define an elongated guide slot.

8. The touch-safe fuse module of claim 7 , wherein the single housing defines first and second projections on the exterior surface, each of the first and second projections received in the elongated slot in the respective first and second legs.

9. The touch-safe fuse module of claim 7 , wherein the first and second legs are attached to respective corners of the single housing.

10. A touch-safe fuse module comprising:
a single housing having a plurality of side walls collectively defining an exterior surface;
first and second terminal blades projecting from the single housing, the first and second terminal blades having a longitudinal axis;
at least one fuse element connected between the first and second terminal blades; and
a built-in removal handle attached to the exterior surface of the single housing at a plurality of locations and slidably movable upon the exterior surface at the plurality of locations along a single axis in a direction parallel to the longitudinal axis of the first and second terminal blades, the built-in removal handle positionable relative to the exterior surface in a first position and a second position assisting with removal of the fuse, the built-in removal handle comprising a grip portion and first and second legs depending from the grip portion and respectively attaching to the exterior surface of the single housing at one of the plurality of locations
wherein the built-in removal handle further comprises third and fourth legs depending from the grip portion.

11. The touch-safe fuse module of claim 10 , wherein the first and second legs are attached to a first one of the plurality of side walls of the single housing, and wherein the third and fourth legs are attached a second one of the plurality of side walls of the single housing.

Assignees

• Cooper Technologies Co

Inventors

• Darr Matthew Rain
• Zhang Xuecheng
• Guo Rui

Classifications

• H01H85/12

  Two or more separate fusible members in parallel · CPC title

• H01H85/22

  Intermediate or auxiliary parts for carrying, holding, or retaining fuse, co-operating with base or fixed holder, and removable therefrom for renewing the fuse · CPC title

• H01H9/10

  Adaptation for built-in fuses (mounting switch and fuse separately on, or in, common support H02B1/18) · CPC title

• H01H85/165 Primary

  Casings · CPC title

• H01H85/54

  Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers · CPC title