In electrical systems, a bus bar is adapted to act as a conductive connector between a power or signal source and various relays, circuit breakers, and other electronic connections. In conventional systems, the bus bar is often pre-formed with a variety of exposed contacts at predetermined locations. For example, U.S. Pat. No. 7,268,300 shows a bus bar assembly that includes multiple bus bars with a plurality of terminals extending therefrom. A housing, shown in
Electrical systems often include fuses to protect against over current conditions. Circuits are commonly routed through a fuse box, where multiple fuses are located. The fuse box protects the fuses, and provides access to the fuses so that damaged fuses may be replaced. It would be advantageous to have an improved system to protect and provide access to fuses.
This invention relates to a fuse adapter having an adapter base. A fuse shroud extends from the header base and defines a fuse cavity. An adapter shroud also extends from the adapter base and defines an adapter terminal space. A fuse terminal opening passes through the adapter base between the fuse cavity and the adapter terminal space. A fuse enclosure is located within the fuse cavity and is configured to retain a fuse. The fuse cavity is configured to engage a header and the adapter shroud is configured to engage an electrical connector.
In another embodiment, the invention relates to a fuse adapter a having an adapter base. A fuse shroud extends from the adapter base and defines a fuse cavity. The fuse adapter further includes a fuse enclosure located within the fuse cavity. The fuse enclosure includes an open end that is configured for the insertion of a fuse into the fuse enclosure. The fuse includes a first fuse terminal and a second fuse terminal. The first fuse terminal is located within the fuse enclosure and is aligned with a terminal opening defined in the fuse enclosure. The second fuse terminal extends out of the fuse enclosure through the open end and into the adapter terminal space. The fuse adapter may also include a fuse lock that retains the fuse in the fuse adapter. The fuse shroud may also include a lock window that allows an operator to release the fuse lock. The fuse adapter can be mated with a header assembly so that a terminal moves through the terminal opening and engages the first fuse terminal inside the fuse enclosure. An adapter shroud also extends from the adapter base and defines an adapter terminal space. The adapter shroud is configured to engage an electrical connector having a connector terminal. The connector terminal engages the second fuse terminal when the connector is mated with the fuse adapter.
Various aspects of this invention will become apparent to those skilled in the art from the following detailed description of the preferred embodiment, when read in light of the accompanying drawings.
Referring now to the drawings, there is illustrated in
The illustrated bus bar 10 extends linearly between the first end 24 and the second end 26, but includes bends 28 which create protrusions 30 that are offset from the line between the first end 24 and the second end 26. The purpose of the protrusions 30 will be described below. The bus bar 10 may have any desired shape between the first end 24 and the second end 26, and may include straight or curved portions if desired. The bus bar 10 also includes insulation cut-outs 32 and 32a where the insulation 22 is removed to expose the conductive portion 20. In the illustrated embodiment, part of the insulation 22 is removed by stripping. However, the insulation 22 may be removed by any desired mechanism or method, or the cut-outs 32 and 32a may be created by not placing any insulation 22 in desired locations during the installation of the insulation 22 on the bus bar 10. The illustrated bus bar 10 includes three cut outs 32 and 32a, but may include any desired number of cut outs 32 and 32a. The illustrated cut outs 32 extend predominately along the relatively large first face 12 and a small distance along the relatively small second face 14, while the cut out 32a is located predominately on the second face 14. However, the cut outs 32 and 32a may be located on any desired face 12, 14, 16, and 18 of the bus bar 10, and may extend onto multiple faces 12, 14, 16, and 18 of the bus bar 10, if desired.
Referring to
The illustrated terminal 34a is attached to the conductive portion 20 of the bus bar 10 and is located in the cut out 32a. The terminal 34a includes a connection portion 36a that is connected to the second face 14 of the bus bar 10 by welding. However, the terminal 34a may be attached to the bus bar 10 by any desired method and may be formed as part of the bus bar 10, if desired. The terminal 34a includes a contact portion 38a which serves to connect with a corresponding terminal, as will be described below. The illustrated terminal 34a abuts the second face 14 of the bus bar 10 and the contact portion 38a extends from the second face 14 of the bus bar 10 substantially parallel to the first face 12. However, the contact portion 38a may extend from the bus bar 10 in any desired direction. The illustrated contact portion 38a is a male blade terminal, but may be any desired type of terminal.
In the illustrated embodiment, the contact portions 38 and 38a all extend from the second face 14 of the bus bar 10 and extend substantially parallel to the first face 12. However, the contact portions 38 and 38a may extend from any location on the bus bar 10 and may extend in any desired direction. The contact portions 38 and 38a may extend in different directions from each other, if desired. Additionally, the illustrated contact portions 38 and 38a all extend from the centerline of the second face 14 and are all substantially coplanar. However, the contact portions 38 and 38a may be located in different planes or have different relative orientations, if desired.
Referring to
As previously described, the bus bar 10 includes protrusions 30 that are offset from the line between the first end 24 and the second end 26. As seen in
Referring to
The illustrated engagement portion 56 includes a first flange 58 that extends from the header base 48. The engagement portion 56 also includes a second flange 60 that also extends from the header base 48. In the illustrated embodiment, the second flange 60 is substantially parallel to the first flange 58. However, the first flange 58 and the second flange 60 may have any desired relative orientations. The engagement portion 56 includes a bus bar space 62 that is defined between the first flange 58 and the second flange 60. The engagement portion 56 includes a first bus bar opening 64 that is located between the first flange 58 and the second flange 60 and is adjacent to the bus bar space 62. The engagement portion 56 also includes a second bus bar opening 66 that is located between the first flange 58 and the second flange 60 and is adjacent to the bus bar space 62 on an opposite side of the bus bar space 62 from the first bus bar opening 64. The first bus bar opening 64 and the second bus bar opening 66 allow the engagement portion 56 to be positioned around the bus bar 10, as will be described below. The header 46 includes a header lock 68. The illustrated header lock 68 includes two protuberances located on the second flange 60 that extend toward the first flange 58. The header lock 68 serves to retain the header 46 in position on the bus bar 10, as will be described below.
The header assembly 45 also includes a header position assurance 70 that serves as a secondary lock to retain the header 46 on the bus bar 10 and to ensure that the header 46 is properly positioned on the bus bar 10, as will be described below. The illustrated header position assurance 70 is molded from plastic, but may be made of any desired material and by any desired process. The header position assurance 70 includes a header position assurance base 72. A first header position assurance arm 74 extends from the header position assurance base 72, and a second header position assurance arm 76 also extends from the header position assurance base 72. The illustrated first header position assurance arm 74 and second header position assurance arm 76 are parallel, but may have any desired relative orientation. The illustrated header position assurance 70 includes a plurality of optional ridges 78 that increase the structural rigidity of the header position assurance 70. The header position assurance 70 also includes a hinge 80 on the first header position assurance arm 74. The illustrated hinge 80 is a thin portion area that allows the first header position assurance arm 74 to deflect relative to the header position assurance base 72.
Referring to
The first flange 58 of the header 46 is engaged with the first face 12 of the bus bar 10, the protuberances are engaged with the second face 14 of the bus bar 10, the second flange 60 is engaged with the third face 16 of the bus bar 10, and the header base 48 is engaged with the fourth face of the bus bar 10. This engagement retains the header 46 in position relative to the bus bar 10. Additionally, the terminal 34 located in the terminal opening 82 is engaged with the header base 48 and also retains the header 46 in position relative to the bus bar 10.
When the header assembly 45 is assembled, the header position assurance 70 is positioned on an opposite side of the bus bar space 62 from the header base 48 and extends between the first flange 58 and the second flange 60. The header position assurance base 72 is engaged with the second face 14 of the bus bar 10. The first header position assurance arm 74 is engaged with the first flange 58 of the header 46, and the second header position assurance arm 76 is engaged with the second flange 60. The header assembly 45 includes a header position assurance lock 84 that retains the header position assurance 70 on the engagement portion 56 of the header 46. The illustrated header position assurance lock 84 includes a latch 86 on the header 46 and a catch 88 on the header position assurance 70. The hinge 80 on the header position assurance 70 allows the first header position assurance arm 74 to resiliently deflect relative to the first flange 58 so that the latch 86 can be engaged by the catch 88. However, the header position assurance lock 84 may be any desired retainer or retaining mechanism.
Referring to
The illustrated adapter 96 is made of plastic, but may be made of any desired material. The adapter 96 includes an adapter base 98. A fuse shroud 100 extends from the base 98 and defines a fuse cavity 102. An adapter shroud 104 also extends from the adapter base 98 and defines an adapter terminal space 106. In the illustrated embodiment, the fuse cavity 102 and the adapter terminal space 106 are on opposite sides of the adapter base 98, but they may have any desired relative positions. The adapter 96 includes a fuse terminal opening 108 passing through the adapter base 98 between the fuse cavity 102 and the adapter terminal space 106. The illustrated fuse terminal opening 108 is defined in the adapter base 98, but may be in any desired location on the adapter 96.
The adapter 96 includes a fuse enclosure 110. The illustrated fuse enclosure 110 is a separate piece, but may be part of the fuse shroud 100 if desired. The illustrated fuse enclosure 110 is made of plastic, but may be made of any desired material. The fuse enclosure 110 includes an open end 112 that is configured for the insertion of a fuse 114 into the fuse enclosure 110. The fuse 114 includes an attached first fuse terminal 116 and an attached second fuse terminal 118 at opposite sides of the fuse 114. The illustrated first fuse terminal 116 is a spring-reinforced female terminal, but may be any desired type of terminal. The fuse 114 is inserted into the fuse enclosure 110 so that the first fuse terminal 116 is located within the fuse enclosure 110 and is aligned with a terminal opening 120 defined in the fuse enclosure 110. The illustrated second fuse terminal 118 is a male blade terminal, but may be any desired type of terminal. When the fuse 114 is inserted into the fuse enclosure 110, the second fuse terminal 118 extends out of the fuse enclosure 110 through the open end 112.
The fuse enclosure 110 is positioned in the fuse cavity 102 so that the second fuse terminal 118 extends through the fuse terminal opening 108 in the adapter base 98. The second fuse terminal 118 is located at least partially within the adapter terminal space 106. The adapter 96 includes a fuse lock, indicated generally at 122, that retains the fuse 114 in the adapter 96. The illustrated fuse lock 122 includes a resilient lock arm 124 within the fuse enclosure 110 that includes a latch 126 that engages a catch 128 on the fuse enclosure 110. The latch 126 engages the fuse enclosure 110 to prevent the fuse enclosure 110 from being removed from the fuse cavity 102. However, the fuse lock 122 may be any desired retainer or mechanism. When the fuse enclosure 110 is installed in the fuse cavity 102, the fuse 114 is retained by the fuse enclosure 110 at one end and the adapter base 98 at the other end.
The assembled adapter 96 provides a female-male linear fuse assembly. The fuse 114 is provided with the female terminal 116 at one end and the male terminal 118 at the other end, each of which are configured to mate with respective corresponding terminals inserted along a fuse axis 130. The illustrated fuse shroud 100 includes an optional lock window 132 that allows an operator to release the fuse lock 122. In the illustrated embodiment, a finger or tool may be inserted through the lock window 132 to deflect the latch 126 out of engagement with the fuse enclosure 110. This allows the operator to remove the fuse enclosure 110 from the adapter 96 in order to replace or service the fuse 114. The adapter 96 may not have the illustrated lock window 132, or the fuse lock 122 may be a relatively permanent connection such as an adhesive, in order to provide an adapter 96 with a fuse 114 that is not serviceable. In that case, the adapter 96 may be replaced when it is desired to replace the fuse 114.
The connector 1090 includes a connector terminal 1136 that is located in the adapter terminal space 106 and is engaged with the second fuse terminal 118 when the connector 1090 is mated with the adapter 96. A connector lock 1138 serves to retain the connector 1090 in position on the adapter 96.
Referring to
The sealed header assembly 2045 includes a seal 2140 connected to a header 2046. The illustrated seal 2140 is made of an elastomeric material, but may be made of any desired material. The illustrated seal 2140 includes a pass-through portion 2142 that is positioned within a terminal opening 2082 defined in a header base 2048. The seal defines a terminal pass-through 2144 that allows the terminal 34a to pass through the seal 2140. The illustrated terminal pass-through 2144 is sized slightly smaller than the terminal 34a so that the seal 2140 engages the terminal 34a.
As seen in
The sealed header assembly 2045 includes a header position assurance 2070 that is substantially similar to the previous described header position assurance 70. The illustrated header position assurance 2070 includes a header position assurance lock 2084 on a first header position assurance arm 2074, and a second header position assurance lock 2084a on a second header position assurance arm 2076. The header position assurance 2070 also includes a first position assurance seal contact 2146 and a second position assurance seal contact 2148 that extend from a header position assurance base 2072. Both position assurance seal contacts 2146 and 2148 are substantially parallel to the first header position assurance arm 2074 and the second header position assurance arm 2076. The first position assurance seal contact 2146 is located between the first flange 2058 and the bus bar 10, and is engaged with the seal 2140. Similarly, the second position assurance seal contact 2148 is located between the second flange 2060 and the bus bar 10, and is also engaged with the seal 2140. The first position assurance seal contact 2146 and the second position assurance seal contact 2148 serve to compress the seal 2140 between the header 2046 and the header position assurance 2070 in order to provide a waterproof seal.
The principle and mode of operation of this invention have been explained and illustrated in its preferred embodiment. However, it must be understood that this invention may be practiced otherwise than as specifically explained and illustrated without departing from its spirit or scope.
This application claims the benefit of U.S. Provisional Application No. 62/377916, filed Aug. 22, 2016, the disclosure of which is incorporated herein by reference.
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Number | Date | Country | |
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20180130627 A1 | May 2018 | US |
Number | Date | Country | |
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62377916 | Aug 2016 | US |