Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/50—Current conducting connections for cells or batteries
  • H01M50/572—Means for preventing undesired use or discharge
  • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
  • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
  • H01M50/591—Covers
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
  • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
  • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/50—Current conducting connections for cells or batteries
  • H01M50/572—Means for preventing undesired use or discharge
  • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
  • H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/50—Current conducting connections for cells or batteries
  • H01M50/572—Means for preventing undesired use or discharge
  • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
  • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
  • H01M50/593—Spacers; Insulating plates
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02E60/10—Energy storage using batteries

Definitions

• TITLE PROTECTIVE BOX FOR ELECTRICAL CONNECTORS
• the invention relates to the field of electrical connection protectors, and in particular the protection of connectors of a motor vehicle battery.
• This protection protects against the risk of short-circuiting between the connectors, but also protects against the risk of external attacks, such as following the intervention of an operator for vehicle maintenance or during transport of the battery.
• Patent document CN-A1 -109066924 discloses a battery comprising a protector comprising a cover articulated around an axis forming a hinge and covering the connectors.
• the object of the invention is to remedy this lack by proposing an improvement to this device.
• the subject of the invention is a protective casing for electrical connectors, this casing comprising:
• a pivot articulation means articulating the cover on the base between an open position where the connectors are accessible and the closed position
• the housing comprising an electrical separation partition intended to separate two adjacent connectors, this partition consisting of a first part secured to the base and a second part secured to the cover arranged so as to overlap if the cover is in the closed position.
• the first and the second part are in contact with each other if the bonnet is in the closed position.
• the first and the second part are arranged so as to fit together if the bonnet is in the closed position.
• the first or the second part is a double wall comprising a space between the two walls, and respectively the second or the first part is a single wall intended to penetrate the space if the hood is in the closed position.
• the first and/or the second part comprise a curved surface around the axis of rotation of the pivot articulation means.
• the center of curvature of the curved surface is carried by the axis of rotation of the pivot hinge means.
• the invention also relates to an electrical connection box comprising:
• the spindle is a threaded rod capable of receiving a bus bar from a battery and a nut tightening this bar on the threaded rod.
• bus bar can be replaced by any current conductor arranged to be connected to the pin, in particular an electrical lug crimped or welded to the end of an electrical cable.
• This terminal comprises for example an eyelet through which the pin passes.
• the invention also relates to a battery comprising a protective box as described above, or an electrical connection box as described above.
• the invention also relates to a motor vehicle comprising a protective box as described above, or an electrical connection box as described above.
• FIG 1 shows a perspective view of the protective casing according to the invention.
• FIG 2 shows a sectional view of the protective housing according to the invention orthogonal to the axis of the pivot articulation means. This same section also represents the electrical connection box according to the invention.
• FIG 3 shows a sectional view orthogonal to Figure 2 and passing through the axis of one of the connectors of the electrical connection box according to the invention.
• a cover 4 intended to cover the base 3 to, once in the closed position on the base 3, define a space enclosing the connectors 1, 2,
• a pivot articulation means 5 articulating the cover 4 on the base 3 between an open position where the connectors 1, 2 are accessible and the closed position.
• This pivot articulation means 5 is for example a hinge comprising hinges articulating the cover 4 on the base 3, but can be more simply hooks of the cover 4 articulating in notches of the base 3, or even more simply a thinning of material between the cover 4 and the base 3, the base 3 and the cover 4 being made by molding in one piece.
• the cover 4 and the base 3 are made for example of plastic material, or at least of an electrically insulating material.
• the box comprises an electrical partition 6 intended to separate two adjacent connectors 1, 2, this partition 6 consisting of a first part 61 secured to the base 3 and a second part 62 secured to the cover 4 arranged so as to overlap if the cover 4 is in the closed position.
• This partition 6 is, like the cover 4 and the base 3, made of an electrically insulating material, advantageously resulting from molding with the base 3 and/or the cover 4.
• the first part 61 integral with the base 3 is intended, during an assembly operation consisting in connecting a conductive element to the connector 1, 2, while the cover 4 is in the open position, to avoid the appearance of a short-circuit between the two connectors 1, 2.
• This first part 61 is therefore intended to separate two adjacent connectors 1, 2.
• this first part 61 takes the form of two "C"s joined back to back, and partially encircling each connector 1, 2. But as a variant, this first part 61 can be a simple flat partition, or of any other shape.
• the first and the second part 61, 62 are for example in contact with each other if the cover 4 is in the closed position.
• the first and the second part 61, 62 are for example arranged so as to fit one inside the other if the cover 4 is in the closed position.
• a socket is for example the first or the second part 61, 62 being a double wall comprising a space 63 between the two walls, and respectively the second or the first part 62, 61 being a single wall intended to penetrate the space 63 if the cover 4 is in the closed position.
• first and/or the second part 61, 62 comprise a curved surface 91, 92 around the axis of rotation of the pivot hinge means 5.
• the curved surface 91, 92 has a concavity vis-à-vis the pivot hinge means 5.
• the second part 62 comprises a first curved surface 91.
• the first part 61 also includes a second curved surface 92, which is one of the branches of one of the two "C"s joined back to back.
• This configuration is not obligatory and, for example and as already described, the first part 61 can be a simple flat partition while the second part 62 comprises the first curved surface 91 coming to lick the first part 61 when the cover is closed. 4.
• the center of curvature of the curved surface 91, 92 is carried by, or coincides with the axis of rotation of the pivot articulation means 5.
• the protective casing in order to keep the cover 4 closed on the base 3, it is advantageous for the protective casing to comprise a means 10 for locking the cover 4 on the base 3, for example a screw, or a clip as shown in Figure 2.
• This locking means 10 is for example advantageously positioned at one end of the cover 4 farthest from the pivot hinge means 5 but not necessarily.
• this blocking means 10 is a clip positioned on and locking the first part 61 on the second part 62: this clip becoming inaccessible once the cover 4 is closed, the opening subsequent cover 4 will require at least the breakage of this clip which will show that cover 4 has been opened.
• these connectors 1, 2, elongated, cross right through the thickness of the base 3 so that each of the two ends of the electrical connectors 1, 2 can be electrically connected to an electrical circuit 70, 71 , 72: thus a sealed electrical connection is made through the base 3.
• the spindle is, for example, a threaded rod capable of receiving a bus bar 70 from a battery and a nut, not shown, tightening this bar 70 on the threaded rod.
• the first end of the electrical connector 1, 2 receives the busbar 70, while the second end of the electrical connector 1, 2 receives an electrical terminal crimped or welded to the end of an electrical cable 71.
• This terminal includes for example an eyelet 72 through which the pin passes and is tightened on the pin by a nut 8.
• connectors 1, 2 are possible, for example a pin having means for clipping conductors at one end, or a connection by welding with this conductor, or a connection by friction and/or clamping.
• the spindle may be in several parts, for example a male threaded rod screwed into a female threaded rod.
• this electrical connection box comprises for example a sealing means providing a seal between these connectors 1, 2 and the base 3.
• the example illustrated by Figure 3 discloses a connector 1, 2 molded in the thickness of the base 3.
• This connector comprises for example a ring centered on the axis of the pin and embedded in the thickness of the base 3, ensuring a mechanical strength of the connector 1, 2 in the base 3 and sealing.
• This invention applies for example to a battery and/or a motor vehicle comprising the protective casing or an electrical connection casing.
• the base 3 forms an interface plate for fixing on one face of a tray or casing of the battery, and the connectors 1, 2 coincide with a opening made in the wall of the tank or casing, this opening being closed by the plate.
• the base 3 comes directly from the material of the tank or casing, by molding for example, thus the base 3 is the tank or casing.
• Battery will be understood throughout the text of this document to mean an assembly comprising at least one battery module containing at least one electrochemical cell.
• This battery optionally comprises electrical or electronic means for managing the electrical energy of this at least one module.
• this battery pack When there are several modules, they are generally grouped together in the tray or casing and then form a battery pack, this battery pack being often designated by the English expression "battery pack", this casing generally containing an assembly interface, and connection terminals and forming an airtight space around the modules by enclosing them between a bottom and a lid.
• the term electrochemical cell will be understood throughout the text of this document to mean cells generating current by chemical reaction, for example of the lithium-ion (or Li-ion) type, of the Ni-Mh type, or Ni -Cd or lead or even fuel cells.
• the cover 4 comprises a peripheral edge 11 resting against the base 3 if the cover 4 is in the closed position.
• the protective case comprises for example a sealing means compressed between this peripheral edge and the base 3.
• This sealing means is for example a seal inserted between the peripheral edge 11 and the base 3, or resulting from a bi-material molding process of the cover 4 or the base 3, or even a simple covering of the peripheral edge 11 with a corresponding edge of the base 3.
• FIG. 3 illustrates this peripheral edge 11 penetrating into a groove of the base 3, thus ensuring this covering.

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Connector Housings Or Holding Contact Members (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=76601359

Family Applications (1)

Country Status (4)

Family Cites Families (5)

• 2021
  • 2021-04-27 FR FR2104342A patent/FR3122309B1/fr active Active
• 2022
  • 2022-02-22 EP EP22710674.7A patent/EP4331042A1/de active Pending
  • 2022-02-22 WO PCT/FR2022/050314 patent/WO2022229520A1/fr active Application Filing
  • 2022-02-22 CN CN202280031059.XA patent/CN117223158A/zh active Pending

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