Modular fuse holder and arrangement and connection thereof

• US 10,699,866 B2
• Filed: 07/19/2019
• Issued: 06/30/2020
• Est. Priority Date: 05/24/2016
• Status: Active Grant

• Current Assignee: Eaton Intelligent Power Limited (Eaton Corporation PLC.)
• Original Assignee: Eaton Intelligent Power Limited (Eaton Corporation PLC.)
• Inventors: Shah, Rushabh Dhanesh, McKinney, Patrick Thomas, N, Aswini, Fisher, Brandon William
• Primary Examiner(s): Gandhi, Jayprakash N
• Assistant Examiner(s): Sul, Stephen S
• Application Number:
  US16/516,983
• Publication Number:
  US 20190341215A1
• Time in Patent Office: 347 Days
• Field of Search: 337187, 337191, 337198
• CPC Class Codes: H01H 2085/2085 Holders for mounting a fuse on a printed circuit
• CPC Class Codes: H01H 2085/209 Modular assembly of fuses or holders, e.g. side by side; combination of a plurality of identical fuse units
• CPC Class Codes: H01H 85/0411 Miniature fuses
• CPC Class Codes: H01H 85/203 for fuses with blade type terminals
• CPC Class Codes: H01H 85/2035 for miniature fuses with parallel side contacts
• CPC Class Codes: H01H 85/2045 Mounting means or insulating parts of the base, e.g. covers, casings
• CPC Class Codes: H05K 1/18 Printed circuits structurally associated with non-printed electric components H05K1/0201, H05K1/023, H05K1/0243, and H05K1/16 take precedence
• CPC Class Codes: H05K 2201/10181 Fuse

Abstract

A fuse holder includes a holder base comprising a plurality of protrusions each having a mounting hole formed therein to provide for mounting of the holder base to an external component and one or more mating protrusions and one or more mating slots formed on each of opposing side surfaces. The fuse holder also includes an input stud coupled to or formed on the holder base and a cover configured to attach to the holder base to at least partially enclose one or more fuses positionable on the fuse holder. The one or more mating protrusions and the one or more mating slots formed on each of the opposing side surfaces of the holder base comprise dovetailed protrusions and slots of a matching profile capable of receiving such a dovetailed protrusion, so as to enable a side-by-side stacking and interlocking of fuse holders with such mating protrusions and mating slots.

Claims

1. A fuse assembly comprising:

a fuse holder including;

a holder base comprising;

a main body;

an electrically conductive insert molded in the main body; and

a receptacle secured onto or formed integrally with the main body, the receptacle partially covering the electrically conductive insert and extending upwardly from the main body; and

an input stud coupled to or formed on the holder base and electrically coupled to the electrically conductive insert; and

a printed circuit board (PCB) fuse assembly including;

a printed circuit board (PCB);

fuse terminal blocks mounted to the PCB;

fuse terminals positioned within the fuse terminal blocks and electrically connected to the PCB; and

blade-type fuses inserted in the fuse terminals and electrically connected to the PCB through the fuse terminals;

wherein the PCB fuse assembly is secured onto the receptacle to mount the PCB fuse assembly on the holder base.

2. The fuse assembly of claim 1 wherein the fuse holder further comprises input and output connecting pins positioned within the receptacle for providing input power to the PCB fuse assembly and transferring output power from the PCB fuse assembly.

3. The fuse assembly of claim 2 wherein the receptacle includes a female output connector formed on surface thereof to which the output power is provided.

4. The fuse assembly of claim 3 wherein the input connecting pins electrically and mechanically couple the PCB fuse assembly to the electrically conductive insert and the output connecting pins mechanically and electrically couple the PCB fuse assembly to the female output connector.

5. The fuse assembly of claim 1 wherein the blade-type fuses comprise one of ATM-mini fuses, ATC fuses, and Maxi fuses.

6. The fuse assembly of claim 1 wherein the main body of the holder base includes a plurality of mating protrusions and a plurality of mating slots formed on side surfaces thereof, with the plurality of mating protrusions and mating slots comprising dovetailed protrusions and slots of a matching profile capable of receiving such a dovetailed protrusion, so as to enable a side-by-side stacking and interlocking of fuse holders with such mating protrusions and mating slots.

7. The fuse holder of claim 1 further comprising an input buss bar bolted to the input stud to provide power to the fuse assembly.

8. The fuse holder of claim 1 further comprising a seal positioned between the PCB and the receptacle to provide ingression protection to the blade-type fuses and the PCB.

9. The fuse holder of claim 1 wherein the electrically conductive insert is bent at 90°

such that first and second portions thereof are orthogonal to one another.

10. The fuse holder of claim 1 further comprising a cover configured to at least partially enclose the PCB fuse assembly, wherein the receptacle comprises a pair of latching features on each of opposing sides thereof configured to mate with notches formed in downward extending tabs of the cover to secure the cover to the holder base.

11. A fuse holder configured to house a plurality of blade type fuses therein, the fuse holder comprising:

a holder base including;

a main body;

a box-shaped receptacle formed integrally with the main body and configured to receive a printed circuit board (PCB) fuse assembly therein, the PCB fuse assembly including a PCB and fuse terminal blocks mounted to the PCB to accept the plurality of blade type fuses; and

an electrically conductive insert molded in the main body;

wherein the PCB fuse assembly is securable onto the box-shaped receptacle to mount the PCB fuse assembly on the holder base; and

an input stud coupled to or formed on the holder base and electrically coupled to the electrically conductive insert.

12. The fuse holder of claim 11 wherein the holder base comprises:

a plurality of protrusions each having a mounting hole formed therein to provide for mounting of the holder base to an external component; and

one or more mating protrusions and one or more mating slots formed on each of opposing side surfaces;

wherein the one or more mating protrusions and the one or more mating slots formed on each of the opposing side surfaces of the holder base comprise dovetailed protrusions and slots of a matching profile capable of receiving such a dovetailed protrusion, so as to enable a side-by-side stacking and interlocking of fuse holders with such mating protrusions and mating slots.

13. The fuse holder of claim 11 further comprising a cover configured to attach to the box-shaped receptacle to at least partially enclose the PCB fuse assembly.

14. The fuse holder of claim 11 further comprising an input buss bar bolted to the input stud to provide power to the fuse holder.

15. The fuse holder of claim 11 further comprising input and output connecting pins positioned within the box-shaped receptacle for providing input power to the PCB fuse assembly and transferring output power from the PCB fuse assembly.

16. The fuse holder of claim 15 wherein the receptacle includes a female output connector formed on surface thereof to which the output power is provided.

17. The fuse holder of claim 16 wherein the input connecting pins electrically and mechanically couple the PCB fuse assembly to the electrically conductive insert and the output connecting pins mechanically and electrically couple the PCB fuse assembly to the female output connector.

18. The fuse holder of claim 11 wherein the electrically conductive insert is bent at 90°

such that first and second portions thereof are orthogonal to one another.