Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
  • H01H85/02—Details
  • 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
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
  • H01H85/0013—Means for preventing damage, e.g. by ambient influences to the fuse
  • H01H85/0021—Means for preventing damage, e.g. by ambient influences to the fuse water or dustproof devices
  • H01H85/0026—Means for preventing damage, e.g. by ambient influences to the fuse water or dustproof devices casings for the fuse and its base contacts
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
  • H01H85/02—Details
  • H01H85/20—Bases for supporting the fuse; Separate parts thereof
  • H01H85/201—Bases for supporting the fuse; Separate parts thereof for connecting a fuse in a lead and adapted to be supported by the lead alone
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
  • H01H85/02—Details
  • H01H85/24—Means for preventing insertion of incorrect fuse
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
  • H01R13/46—Bases; Cases
  • H01R13/502—Bases; Cases composed of different pieces
  • H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
  • H01R13/46—Bases; Cases
  • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
  • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
  • H01R13/5221—Sealing means between coupling parts, e.g. interfacial seal having cable sealing means
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
  • H01H85/02—Details
  • H01H85/20—Bases for supporting the fuse; Separate parts thereof
  • H01H85/203—Bases for supporting the fuse; Separate parts thereof for fuses with blade type terminals
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
  • 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
  • H01H85/547—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers with sliding fuse carrier

Definitions

• the invention relates to the field of fuse holders, and in particular fuse holders for automotive applications.
• fuse holders of this type can be used to protect charging circuits of electric vehicles.
• these fuses are placed as far upstream as possible in the charging circuit, for example, at the charging socket, in order to protect the vehicle and its possible occupants from a short circuit, from excessive heating. or even a fire.
• the fuses are located outside the passenger compartment, and therefore subjected to bad weather, water jets, etc.
• a fuse carrier having two housing elements.
• Each element being monobloc.
• these two housing elements form, once assembled, a closed tube at each of its ends. They then allow to house at least one fuse.
• Several fuses may possibly be housed in parallel between two housing elements.
• Each fuse has two connection terminals.
• Each housing element has at least one contact for making an electrical connection with one of these terminals.
• two contacts are provided, each respectively located in a housing element. Each contact is intended to then establish an electrical connection with one of the two connection terminals of a fuse.
• Each contact is electrically connected, for example by crimping and / or welding, to a cable.
• Each housing element has a passage for this or these cable (s) and a wire seal for sealing between the outer insulating sheath of each cable and this passage.
• this seal may be a unitary wire seal.
• a wired unitary seal may be provided for each cable or a joint for several cables, with a passage for each cable.
• One of the two housing elements has a base, intended to receive at least one fuse and extending longitudinally in a direction of assembly of the two housing elements with each other.
• This housing element further comprises an interfacial seal disposed on the base. This is for example an O-ring that extends essentially in a plane perpendicular to the assembly direction.
• This interfacial seal is covered by the other housing member when the two housing members are assembled together. The interfacial seal is thus sandwiched between the two housing elements. Specifically, the interfacial seal is sandwiched between the outer surface of the base of one of the housing members and the inner surface of the other housing member.
• the fuse (s) housed in the fuse holder is (are) in a sealed zone.
• a molded edge may be provided on one of the housing members and extending from one to the other. a part all around the base and secondly in the assembly direction of the two housing elements with each other. The rim then overhangs the interfacial joint.
• the holding means are for example removable and / or movable between an open position and a closed position.
• the interfacial seal In the open position of the holding means, the interfacial seal can slide relatively freely over a portion of the cap.
• the displacement of the interfacial seal on the base In the closed position of the holding means, the displacement of the interfacial seal on the base is more limited and is essentially maintained under the rim, or at least an area sufficiently close to it for the flange to make the interfacial joint more difficult to reach.
• the means for holding the interfacial seal may for example be integral with a support in which at least one fuse is housed.
• the open position of the holding means / fuse holder allows the insertion of at least one fuse on the support and their closed position allows the connection of this fuse with a contact.
• locking means may be provided, part of which is located on one of the casing elements and another part is located on the other of the casing elements. . These two parts then engage, for example by snapping together with one another, to lock the housing members when they are assembled with each other. In order to protect these shock-locking means or an involuntary unlocking, these can be at least partially covered and protected by the rim.
• a bevelled surface on one of the housing elements This beveled surface is located at least partially under the rim. It flares in an assembly direction corresponding to the insertion of a portion of the other housing element under the flange. This beveled surface then forms a ramp for sliding, during the assembly of the housing elements with each other, the interfacial seal on the base of the position in which it was retained by the holding means, to a position in which he rests on a seat with which he makes a tight contact.
• the interfacial seal it can be provided on one of the housing members, a flared opening at which are inserted the seat and the seal located on the other housing member. In this way, it avoids having to make a groove on the base whose molding would have been incompatible with the realization of the rim.
• FIG 1 is a diagrammatic perspective view of an exemplary embodiment of a fuse holder according to the invention.
• FIG 2 is a diagrammatic perspective view and exploded fuse holder of Figure 1;
• FIGS. 3A and 3B show diagrammatically, in perspective, a support mounted on a housing element of the fuse holder of FIGS. 1 and 2, with the support respectively in the open and closed position;
• FIG. 4 schematically represents a longitudinal section along an axial plane, the fuse holder of FIGS. 1 and 2;
• FIG. 5 shows schematically in longitudinal section along an axial plane, perpendicular to that of Figure 4, the fuse holder of Figures 1 and 2.
• An example of a fuse holder 1 is shown in FIG. 1.
• This fuse holder 1 is inserted between two cable portions 2, in an electric circuit, such as a charge circuit of an electric vehicle.
• Each cable portion 2 is electrically connected, for example by crimping or soldering to a contact 3 (for example a DCS1 6.3 female contact of Delphi -visible in FIGS. 4 and 5).
• Each contact 3 is housed in a housing element 4, 5.
• a first housing element 4 comprises locking means 6 for holding the second housing element 5, forming a cover. Once assembled, the first 4 and second 5 housing elements form a tube closed at each of its ends by a wall 7 provided with a passage 8 for each cable portion 2.
• this fuse holder comprises, in addition to the contacts 3 and the first 4 and second 5 housing elements, a fuse holder 9, a fuse 10 and an O-ring 11.
• the fuse 10 is housed in the support 9, itself housed in the tube consisting of the first 4 and second 5 housing elements assembled with each other.
• the seal 11, mounted on the first housing element 4, is interposed between the first 4 and second 5 housing elements, in the manner of an interfacial seal, in order to seal them (see FIGS. ).
• the locking means 6, constituted by two elastic fasteners 6a, are disposed diametrically opposite to the first casing element 4, each of which is provided with a notch 6b in which an interlocking lug 6c is interlocked. on the second housing element 5 (see FIG. 5).
• the first housing element 4 essentially consists of a substantially cylindrical base 4a with an outer face 4b partially surrounded by a skirt 4c.
• the locking means 6 are partially covered by a flange consisting of a skirt 4c.
• the support 9 has a cradle shape with two lateral walls 12 extending longitudinally between two flanges 13.
• Two elastic lateral lugs 14 each extend respectively from a lateral wall 12.
• Each of these lateral lugs 14 is provided with a notch 14a to form retention means of a fuse 10 in its support 9.
• the support 9 also comprises guiding and fixing means 15 (FIG. 3A). These comprise two legs 15a, diametrically opposed, each respectively comprising a hook 15b for retaining or locking the support 9 on the first housing element 4 (see FIG. 4), in posterior recesses 17a (open position of the support 9) or anterior recesses 17b (closed position of the support 9). These two tabs 15a constitute guide means which make it possible to precisely guide and position the support 9 relative to the first housing element 4. These two tabs 15a also constitute means for holding the gasket 11 on the first housing element 4. The means for holding the gasket 11 are integral with the support 9.
• FIGS. 3A and 3B respectively illustrate the open and closed positions of the support 9 on the first housing element 4.
• the support 9 In the position corresponding to FIG. 3A, the support 9 is in the open position, or pre-locked. In this position, the fuse 10 can be introduced into the support 9 without having to dismount it from the first housing element 4.
• the support 9 remains maintained, but mobile, on the first housing element 4 thanks to the fact that the hooks 15b remain engaged in the posterior recesses 17b.
• the seal 11 remains held by the tabs 15a on the base 4a.
• the support 9 When the fuse 10 is well positioned between the lateral lugs 14, under the notches 14a and with the terminals 10a inserted in the slots 13a, the support 9 can be moved longitudinally, towards its closed position, inside a cavity 18 in the base 4a of the first housing element 4 and opening on an opening 19. In this movement, the tabs 15a slide in grooves 20 disposed longitudinally, diametrically opposite, on the outer face 4b of the base 4a (see Figure 2). Thus, when inserting the support 9 in the first housing element 4, it can only be correctly oriented, so that the opening of the female contact 3 which is housed in the first housing element 4 is aligned with the corresponding terminal 10a.
• the second housing element 5 can be threaded on the support 9 and around the base 4a, to be locked by the locking means 6.
• the second housing element 5 comprises keying means 16 allowing an operator to correctly orient it with respect to the support 9.
• the second housing element 5 can only be correctly oriented , in a way to that the opening of the female contact 3 which is housed therein is aligned with the corresponding terminal 10a.
• the first 4 and second 5 thus assembled casing elements form a closed and sealed tube thanks to the interfacial seal 11 and to the solder unit joints 19 crimped with the cables 2 on the contacts 3.
• the gasket 11 is disposed on the base 4a essentially in a plane perpendicular to the assembly direction A. It is covered by the second housing element 5 when the two housing elements 4 , 5 are assembled together.
• the first housing element 4 comprises a beveled surface 20, located under the flange consisting of the skirt 4c. It flares in an assembly direction corresponding to the insertion of a portion of the second housing element 5 under this flange.
• This bevelled surface 20 forms a ramp to bring the interfacial seal 11 to a seat 21 when assembling the first 4 and second 5 housing elements together.
• the second housing element 5 has an opening 22 flared at which are inserted the seat 21 and the seal 1.
• the seal 11 is at least partly protected by the flange consisting of the skirt 4c.
• This flange extending firstly around the base 4a and secondly in the assembly direction of the first 4 and second 5 housing elements with each other.
• the seal 11 is protected even when the second housing element 5 is not assembled with the first 4.
• the tabs 15a can hold the gasket 11 on the first housing element 5, under the skirt 4c, when the support 9 is in the closed position (which advantageously corresponds to the delivery position of the assembly consisting of the first housing element 4 and the support 9).
• the second housing element 5 tightly encloses the support 9, in which the fuse 10, which itself is connected to contacts 3 locked in such a way, is accurately housed. reliable and solid in their respective homes.
• the fuse holder 1 may comprise a single support 9 but can accommodate several fuses 10 or still several supports 9 each housing one or more fuses 10.
• the fuse holder 1 may comprise a single support 9 but can accommodate several fuses 10 or still several supports 9 each housing one or more fuses 10.

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• Fuses (AREA)

Applications Claiming Priority (2)

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• 2013
  • 2013-12-19 FR FR1363104A patent/FR3015766A1/fr not_active Withdrawn
• 2014
  • 2014-12-17 CN CN201480069596.9A patent/CN106104743B/zh active Active
  • 2014-12-17 US US15/103,096 patent/US9728366B2/en active Active
  • 2014-12-17 WO PCT/EP2014/078323 patent/WO2015091704A1/fr active Application Filing
  • 2014-12-17 EP EP14815695.3A patent/EP3084802B1/de active Active

Non-Patent Citations (2)

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