Surge protection device

Patent metadata

Field	Value
Publication number	US-11877407-B2
Application number	US-202016995402-A
Country	US
Kind code	B2
Filing date	Aug 17, 2020
Priority date	Aug 17, 2020
Publication date	Jan 16, 2024
Grant date	Jan 16, 2024

Abstract

A surge protection device has a housing that is formed from a first lateral portion, a middle portion, and a second lateral portion that are connected together with a plurality of fasteners. The surge protection device includes an electronic apparatus having a neutral wire and further includes a housing that advantageously includes a strain relief that causes the neutral wire to frictionally engage the housing with sufficient friction to resist a predetermined tension applied to the free end or other portion of the neutral wire at the exterior of the housing from damaging an electrical connection between the neutral wire and a circuit board within an interior region of the surge protection device.

First claim

What is claimed is:

1. A surge protection device comprising:
a housing comprising a first lateral portion, a second lateral portion, and a middle portion, at least a part of the middle portion being situated between the first and second lateral portions, the housing having an interior region;
an electronic apparatus situated on the housing, the electronic apparatus comprising a circuit board, at least a first varistor electrically connected with the circuit board, and at least a first line terminal electrically connected with the circuit board, the circuit board and the at least first varistor being situated within the interior region; and
at least one of the circuit board and the middle portion having a receptacle formed therein, at least a portion of the other of the at least one of the circuit board and the middle portion being received in the receptacle to thereby mount the circuit board to the middle portion,
wherein the housing further comprises a number of alignment bosses and a number of alignment receptacles, an alignment boss of the number of alignment bosses being situated on one of the first lateral portion, the second lateral portion, and the middle portion and being received in an alignment receptacle of the number of alignment receptacles that is formed on another of the first lateral portion, the second lateral portion, and the middle portion.

2. A surge protection device comprising:
a housing comprising a first lateral portion, a second lateral portion, and a middle portion, at least a part of the middle portion being situated between the first and second lateral portions, the housing having an interior region;
an electronic apparatus situated on the housing, the electronic apparatus comprising a circuit board, at least a first varistor electrically connected with the circuit board, and at least a first line terminal electrically connected with the circuit board, the circuit board and the at least first varistor being situated within the interior region; and
at least one of the circuit board and the middle portion having a receptacle formed therein, at least a portion of the other of the at least one of the circuit board and the middle portion being received in the receptacle to thereby mount the circuit board to the middle portion,
wherein the housing further comprises a number of fasteners, a fastener of the number of fasteners directly affixing together the first lateral portion and the middle portion, and the fastener further directly affixing together the second lateral portion and the middle portion, another fastener of the number of fasteners directly affixing together the first lateral portion and the second lateral portion.

3. The surge protection device of claim 1 wherein the housing further comprises a number of fasteners, a fastener of the number of fasteners being received through the alignment boss and the alignment receptacle.

4. The surge protection device of claim 1 wherein at least one of the first lateral portion and the middle portion includes a ledge that overlaps the other of the first lateral portion and the middle portion, and wherein at least one of the second lateral portion and the middle portion includes another ledge that overlaps the other of the second lateral portion and the middle portion.

5. The surge protection device of claim 1 wherein:
the electronic apparatus further comprises a neutral wire electrically connected with the circuit board and having a free end situated at an exterior of the housing;
the housing further comprising a strain relief that comprises a first wall portion, a second wall portion, and a routing path through which at least a portion of the neutral wire is routed between the interior region and the exterior, the first and second wall portions each being situated adjacent the routing path, the neutral wire extending adjacent the first and second wall portions and being structured to frictionally engage the first and second wall portions with sufficient friction to resist a predetermined tension applied to a portion of the neutral wire situated at the exterior.

6. The surge protection device of claim 1 wherein:
the electronic apparatus further comprises a neutral wire electrically connected with the circuit board and having a free end situated at an exterior of the housing;
the housing further comprising a strain relief that comprises a routing path through which at least a portion of the neutral wire is routed between the interior region and the exterior, the neutral wire being structured to frictionally engage the housing with sufficient friction to resist a predetermined tension applied to the free end.

7. The surge protection device of claim 1 wherein:
the receptacle is formed in the circuit board;
the at least portion of the other of the at least one of the circuit board and the middle portion being a tab situated on the middle portion and being received in the receptacle;
the circuit board further comprising a first surface and a second surface opposite one another; and
the middle portion further comprising a first abutment situated adjacent the first surface and a second abutment situated adjacent the second surface.

8. The surge protection device of claim 7 wherein:
the tab is situated between the first and second abutments;
the receptacle extending between the first and second surfaces;
the first abutment engaging the first surface adjacent the receptacle; and
the second abutment engaging the second surface adjacent the receptacle.

9. The surge protection device of claim 1 wherein:
the receptacle is formed in an end of the circuit board;
the at least portion of the other of the at least one of the circuit board and the middle portion being a tab situated on the middle portion and being received in the receptacle;
the first lateral portion comprising a first support that engages another end of the circuit board opposite the end;
the second lateral portion comprising a second support that engages the another end of the circuit board.

10. A surge protection device comprising:
a housing comprising a first lateral portion, a second lateral portion, and a middle portion, at least a part of the middle portion being situated between the first and second lateral portions, the housing having an interior region;
an electronic apparatus situated on the housing, the electronic apparatus comprising a circuit board, a neutral wire, and at least a first line terminal electrically connected with the circuit board, the circuit board being situated within the interior region, the neutral wire being electrically connected with the circuit board and having a free end situated at an exterior of the housing; and
the housing further comprising a strain relief that comprises a routing path through which at least a portion of the neutral wire is routed between the interior region and the exterior, the neutral wire being structured to frictionally engage the housing with sufficient friction to resist a predetermined tension applied to a portion of the neutral wire situated at the exterior.

11. The surge protection device of claim 10 wherein the strain relief comprises a first wall portion and a second wall portion, the first and second wall portions each being situated adjacent the routing path, the neutral wire extending adjacent the first and second wall portions and being structured to frictionally engage the first and second wall portions with sufficient friction to resist the predetermined tension.

12. The surge protection device of claim 10 wherein the housing further comprises a number of fasteners, a fastener of the number of fasteners directly affixing together the first latera

Assignees

• Eaton Intelligent Power Ltd

Inventors

• Powar Ramesh Shivaji
• Jagadale Ramesh
• Cox Jeffrey
• Lockhart Jeffrey W
• Epee Victor

Classifications

• H05K5/006 Primary

  characterized by features for holding the PCB within the housing · CPC title

• H01C1/02

  Housing; Enclosing; Embedding; Filling the housing or enclosure · CPC title

• H01C7/12

  Overvoltage protection resistors; Arresters · CPC title

• H05K1/18 Primary

  structurally associated with non-printed electric components (H05K1/16 takes precedence) · CPC title

• H05K5/0052

  characterized by joining features of the housing parts · CPC title