Sealed fuse holder
View Patent ↗The invention relates to a fuse holder comprising two housing elements which, once assembled, together form a tube in which a fuse is accommodated. The first housing element includes a base extending longitudinally along the direction of assembly of the two housing elements with each other. A seal is placed on the base mainly in a plane perpendicular to the direction of assembly. During assembly, the second housing element is brought to at least partially cover the base to sandwich the seal between the two housing elements. A rim extends around the base in the direction of assembly in order to protect the seal until the two housing elements are assembled together.
1. A fuse holder, comprising:
a first and second housing element which, once assembled, are configured to accommodate a fuse;
a cap integrally formed with the first or second housing element and extending longitudinally in a direction of assembly of the first and second housing elements;
a locking feature having a first part situated on the first housing element and having a second part situated on the second housing element and configured to retain the first and second housing elements assembled together and to form a tube closed at each of its ends by a wall including a passage for a cable portion;
a seal disposed on the cap essentially in a plane perpendicular to an assembly direction and covered by the second housing element when the first and second housing elements are locked together; and
a seal retaining feature movable between an open position and a closed position, wherein the seal retaining feature is integral with a support in which the fuse is accommodated, wherein the seal retaining feature includes two opposed lugs each having a hook configured to lock the support to the first housing element, and wherein the seal is retained on the first housing element when the first and second housing elements are not assembled together.
2. The fuse holder in accordance with claim 1 , wherein the seal is an O-ring seal.
3. The fuse holder in accordance with claim 1 , wherein the first and second housing elements each includes a contact intended to make an electrical connection with a terminal of the fuse and electrically connected to a cable and wherein the first and second housing elements each include a cable passage and a wire seal inserted between the cable and the cable passage.
4. The fuse holder in accordance with claim 1 , wherein the first housing element essentially consists of the cap and a rim integrally molded with the cap extending all around the cap and in the direction of assembly of the first and second housing elements with each other.
5. The fuse holder in accordance with claim 4 , wherein the first and second parts of the locking feature engage with each other to lock the first and second housing elements when they are assembled together and wherein the locking feature is at least partly covered by the rim.
6. The fuse holder in accordance with claim 4 , wherein the first housing element includes a beveled surface situated at least in part under the rim and flared in the assembly direction corresponding to insertion of a portion of the second housing element under the rim, wherein the beveled surface forms a ramp for leading the seal onto a seating on assembling the first and second housing elements together.
7. The fuse holder in accordance with claim 6 , wherein the second housing element includes a flared opening into which are inserted the seating and the seal situated on the first housing element.