Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/06—Lead-acid accumulators
• • 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
  • H01M50/10—Primary casings; Jackets or wrappings
  • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
  • H01M50/112—Monobloc comprising multiple compartments
• • 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
  • H01M50/10—Primary casings; Jackets or wrappings
  • H01M50/172—Arrangements of electric connectors penetrating the casing
• • 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
  • H01M50/10—Primary casings; Jackets or wrappings
  • H01M50/183—Sealing members
  • H01M50/184—Sealing members characterised by their shape or structure
• • 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
  • H01M50/10—Primary casings; Jackets or wrappings
  • H01M50/183—Sealing members
  • H01M50/186—Sealing members characterised by the disposition of the sealing members
• • 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
  • H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
• • 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
  • H01M50/543—Terminals
  • H01M50/552—Terminals characterised by their shape
• • 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
  • H01M50/543—Terminals
  • H01M50/552—Terminals characterised by their shape
  • H01M50/561—Hollow metallic terminals, e.g. terminal bushings
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M2220/00—Batteries for particular applications
  • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
• • 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
  • H01M50/10—Primary casings; Jackets or wrappings
  • H01M50/147—Lids or covers
• • 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

• the present invention relates to a connection pole for a rechargeable battery as well as a rechargeable battery housing.
• the invention further relates to a plastic battery cover for closing a battery case with a mounted in the battery case state in the battery case facing bottom and a ner opposite top, and with at least one guided through the battery cover metallic terminal pole.
• the invention relates to a lead-acid battery having a cell-housed plastic housing, a plurality of electrode plates in the cells of the plastic housing, and electrolyte in the cells.
• bushings In the manufacture of batteries, in particular accumulators and in particular starter batteries, a particular problem is the execution of dense and tightly lasting bushings, z. B. for pole terminals and cell connectors, dar.
• the bushings must be inexpensive and easy to produce and can withstand the high-creep electrolyte.
• lead sockets are usually pressed or injected as pole feedthroughs into the battery cover or into the cell walls.
• the invention is therefore based on the object, starting from a terminal pole, as it is known for example from the publication WO 2014/198650 AI to further develop this to the effect that When pressing or injecting the Krebspoles in the battery cover no Kapillarspalte or gaps in the pm area between the terminal pole and the material of the battery cover occur in which can accumulate acid or electrolyte or through which acid or electrolyte can pass, so the terminal pole also To effectively protect against corrosion without the use of a lubricating seal.
• Another object of the present invention is to provide a corresponding plastic battery cover or a corresponding battery case and a lead acid battery.
• connection pole for a rechargeable battery
• connection pole has a connection region for fastening a pole terminal to the connection pole and a fastening region for fastening the connection pole to a housing part of the accumulator.
• connection region means that region of the connection pole which, in the installed state of the connection pole, that is to say, when the connection pole is pressed or injected into the battery cover or into the housing part of the accumulator, correspondingly toward the outside exposed so as to allow the attachment of a pole terminal.
• fastening region is to be understood here as that region of the terminal pole which, in the installed state of the terminal pole, is pressed or injected into the material of the housing part of the rechargeable battery.
• connection pole according to the invention has in its fastening region a corresponding anti-twist protection, which is formed by a circumferential projection which essentially has a ring shape and at its Outer circumference is provided with a toothing.
• This anti-rotation device (English: torque ring) is provided in an end region of the attachment region facing the connection region of the connection pole.
• the terminal pole according to the invention is characterized in particular by the fact that in the installed state, ie when the terminal pole is pressed or injected into a corresponding terminal lead-through in the housing part of the accumulator, no capillary gaps or other gaps in the pm- between the components of the terminal pole and the housing part material.
• connection pole in the connection pole according to the invention that in the end region of the attachment region facing the connection region, namely between the anti-rotation protection, ie between the circumferential projection provided with the toothing, and the connection region, a further circumferential projection is provided which at least substantially is annular and serves as a sealing projection.
• the sealing projection which is provided between the rotation and the terminal portion of the terminal, has a particular annular outer surface, which is formed without teeth.
• the upper annular surface of the annular projection is also completely covered by the material, in particular plastic material, of the housing part when the terminal pole is pressed or injected into the housing part of the accumulator, the occurrence of gaps or capillary gaps can occur Electrolyte or acid remains, or by which electrolyte can escape, can be effectively prevented.
• the upper ring circle surface of the sealing projection lies in a plane which lies in or below the cutting plane between the connection region and the fastening region, wherein - as already explained at the beginning - the connection region defines that region of the connection pole in a state when the terminal is connected to the housing part of the accumulator, exposed with respect to the housing part.
• connection pole According to a first alternative of the connection pole according to the invention, it is provided that the sealing projection has a lower ring circle surface remote from the connection region of the connection pole, which lies in a plane corresponding to the plane in which an upper ring circle surface of the circumferential projection (rotation protection) provided with the toothing lies ,
• the undercut area has a length of 0, 1 mm to 0.8 mm, preferably a length of 0.2 mm to 0.7 mm, and more preferably a length of 0, viewed in the longitudinal direction of the terminal pole. 3 mm to 0.5 mm.
• the sealing projection has a preferably bevelled circumferential surface in the direction of the provided with the toothing circumferential projection (rotation).
• the toothing of the circumferential projection has a toothing, seen in the circumferential direction of the projection preferably regularly radially projecting portions are formed.
• the radially projecting portions of the toothing in the radial direction of the terminal pole protrude at least as far and preferably further than the sealing projection.
• a valley-shaped region of the toothing which seen in the radial direction of the terminal pole protrudes less far than the projecting portions of the toothing.
• the circular projection preferably protrudes further than the respective valley regions of the toothing.
• connection pole has a labyrinth region in its attachment region, and preferably in an end region of the attachment region opposite the connection region, the outer wall of the attachment pole having at least one peripheral projection in this labyrinth region.
• the circumference of the outer wall of the terminal pole in at least one area of the labyrinth area which does not provide a circumferential projection increases in a direction away from the terminal area. This allows close to the connection area, d. H. in the upper part of the labyrinth area, realize smaller outer peripheries of the terminal pole, whereby the amount of required material for the terminal pole in this area can be reduced.
• circumferential area of the labyrinth area are thus understood as wall areas in which no circumferential projection is arranged, neither completely nor partially. The result is about
• Terminal pole in at least one region of the labyrinth region outside the at least one circumferential projection in the direction away from the connection area conically increase.
• Connection area of progressive direction increased approximately linearly.
• connection pole can advantageously realize a material saving in the upper region of the labyrinth region. At the same time, sufficient mechanical stability of the terminal pole can continue to be ensured. The saving of the material of the
• Terminal pole provided housing of a battery.
• the outer wall of the terminal pole in at least one region is conically or monogully hyperboloidally extending, in a region in which not the circumferential projection or the circumferential projections are arranged.
• the at least one circumferential projection provided in the labyrinth region is also reduced in its diameter. This results in a further material and weight savings. It can also have several circumferential projections
• the labyrinth area has a smaller extension in the longitudinal direction of the terminal pole than the attachment section. This allows the provision of further elements in the attachment portion without affecting the labyrinth area.
• the at least one circumferential projection of the labyrinth region can be realized with different profiles.
• As a basic form for the circumferential projection is called a ring-like shape. According to an advantageous
• the at least one circumferential projection on a hook-shaped profile may, for example, connect to the outside of a ring-shaped projection of the aforementioned basic shape.
• the hook-shaped profile effectively promotes labyrinth formation between the material of the terminal post and the plastic of the surrounding housing. As a result, the sealing effect of the labyrinth can be further improved.
• the terminal pole is hollow inside.
• the circumference of the inner wall of the terminal post increases in at least a first region of the labyrinth region in the direction away from the terminal region.
• the inner wall and the outer wall of the terminal pole extend in its Lengthwise at least partially parallel.
• constant wall thicknesses can be realized at least in sections in the longitudinal direction of the terminal pole.
• the terminal pole can be further optimized in terms of material savings and weight.
• This training can z. B. be realized by the conical region of the
• Inner wall formed angle to the longitudinal axis of the terminal pole is substantially equal to the angle of a conical portion of the outer wall to the longitudinal axis of the terminal pole. According to an advantageous embodiment of the invention, it is provided that the first region in which the circumference of the inner wall increases, in the longitudinal direction of the terminal pole does not protrude beyond the area in which the circumference of the
• Terminal area extends.
• the first region, in which the circumference of the inner wall increases projects beyond the region in the longitudinal direction of the connection pole, in which the circumference of the outer wall increases.
• connection pole is hollow inside and the circumference of the inner wall of the connection pole increases in the connection region in the direction of the labyrinth region.
• the circumference of the inner wall and / or the outer wall monotonically linear or
• the inner wall of the terminal pole is conically enlarged in at least one second area of the labyrinth area in a direction away from the terminal area.
• the inner wall forms in the second region a larger angle to the longitudinal axis of the
• Terminal pole than in the first area.
• the inner, hollow region of the connection pole is provided for receiving a connection pin, which extends through the connection pole into the interior of the connection section.
• the pin is connected to electrode plate sets inside the accumulator.
• Electrode plate sets on which pins are already attached, provided. Subsequently, a lid of the accumulator, in the connecting poles in
• Injection molding are molded, placed on the housing base.
• Here is a simple and fast centering of the terminal poles compared to the
• Another advantage is that in the manufacture of the lid of the accumulator, a lower mandrel for the internal sealing of the injection molding compound from the environment can be quickly positioned in the second conical region.
• the second region is on the side of the first section facing away from the connection region.
• the circumference of the inner wall of the connection pole is discontinuously changed at the end of the connection pole facing away from the connection region.
• Such a discontinuity causes a sudden change in the inner diameter.
• z. B. an annular end portion of the terminal pole can be realized with respect to the first or the second region enlarged diameter.
• An advantageous accumulator housing or a part thereof has at least one terminal pole of the type described above. It is advantageous
• FIG. 1a, 1b are each isometric views of a first exemplary embodiment of the terminal pole according to the invention.
• FIG. FIG. 2 is a schematic side view of the terminal pole according to the first exemplary embodiment
• FIG. 3 schematically shows a longitudinal sectional view of the terminal pole according to the first exemplary embodiment
• FIG. 4 schematically shows a side view of a modification of the terminal pole according to the first exemplary embodiment
• FIG. 5 schematically shows a longitudinal sectional view of the modification of the terminal pole according to FIG. 4;
• FIG. Figure 6 is an isometric view of a second exemplary embodiment of the terminal pole according to the invention.
• FIG. 7 schematically shows a side view of the terminal pole according to the second exemplary embodiment;
• FIG. 8 schematically shows a longitudinal sectional view of the terminal pole according to the second exemplary embodiment.
• like reference numerals are used for corresponding elements and components.
• FIG. 1 a and 1 b each show, in an isometric view, a first exemplary embodiment of the connection pole 1 according to the invention, which is shown schematically once again in FIG. 2 in a side view and schematically in FIG. 3 is shown in a longitudinal sectional view.
• FIG. 4 schematically shows in a side view a modification of the terminal pole 1 according to the first exemplary embodiment. This modified embodiment is shown schematically in FIG. 5 again shown in a longitudinal sectional view.
• the connection pole 1 according to the first exemplary embodiment has a connection region 2 and a fastening region 3.
• a labyrinth area 4 is provided.
• connection pole 1 has an outer wall 18 and an upper end surface 16 on its outer side.
• a circumferential projection 14 is arranged in the attachment region 3, adjacent to the connection region 2, which may basically have an annular shape and serves as an anti-twist device.
• the circumferential projection 14 on the outer circumference explained in more detail below gearing.
• the outer wall 6 is interrupted by circumferential projections 7, 8, each having a hook-shaped profile.
• the terminal pole 1, apart from the teeth, z. B. be designed as a substantially rotationally symmetric component.
• the terminal pole 1 shows, by way of example, in the left-hand region of the terminal pole 1, a detail of a housing part 5 of an accumulator molded onto the terminal pole 1 by injection molding.
• the terminal pole 1 is embedded in the mounting region 3 on its outer side in the material of the housing part 5.
• a labyrinth is formed, which ensures a good seal of the interior of the accumulator to the environment.
• the terminal pole 1 is hollow.
• an inner wall 9 extends in sections conically with different angles of the inner wall 9 with respect to the longitudinal axis L of the connection pole 1.
• the second region 11 is adjoined by a first region 10 on the side of the connection pole 1 opposite the connection region 2.
• a further conical region 15 of the inner wall 9 is provided, which extends from the upper end surface 16 into the labyrinth region.
• the second region 11 is followed by an approximately annular region 13 in the cavity 17.
• the diameter of the cavity 17 is increased suddenly at the point indicated by the reference numeral "12".
• the serving as anti-rotation circumferential projection 14 has an external toothing, which by corresponding radially projecting portions 21st
• a multiplicity of radially projecting regions 21 are distributed uniformly over the circumference of the connecting pole 1.
• radially projecting portions 21 are provided with asymmetrical tooth flanks.
• a first tooth flank of a radially projecting region 21 has a smaller angle with respect to the outer circumference of the circumferential projection 14 than the second tooth flank belonging to the radially projecting region 21.
• the first exemplary embodiment of the terminal pole 1 according to the invention and the modified embodiment according to FIGS. 4 and 5 is characterized in particular by the fact that in the end region of the fastening region 3 facing the connection region 2 of the connection pole 1 between the circumferential projection 14 provided with the toothing, which serves as rotation lock, and the connection region 2, a further circumferential projection 19 is provided , which is at least substantially annular.
• This further circumferential projection 19 serves to effectively prevent the occurrence of any gaps between the terminal pole 1 and the material of the housing part of the accumulator, so as to allow a retention of acid in the gaps and in particular a highly effective leak-free seal.
• the sealing projection 19 is arranged and designed such that, in a state when the connection pole 1 is fastened to the housing part 5 of the accumulator, it is preferably completely covered by the material, in particular plastic material, of the housing part 5.
• “over the entire surface” means that the upper ring circle surface of the sealing projection 19 facing the connection region 2 of the connection pole 1 is covered by the material, in particular plastic material, of the housing part 5.
• the upper ring circle surface of the annular sealing projection 19 lies in FIG a plane which lies in or below the sectional plane between the connection region 2 and the attachment region 3, wherein the connection region 2 defines that region of the connection pole 1 which is in a state during which Terminal pole 1 is connected to the housing part 5 of the accumulator, with respect to the housing part 5 exposed.
• the circumferential protrusion 14 (anti-rotation lock) provided with the toothing has an upper annular circular surface facing the annular sealing projection 19, which lies in a plane parallel to the plane in which the upper annular circular surface of the annular sealing protrusion 19 is located.
• the annular sealing projection 19 has a lower annular area facing away from the terminal area 2 of the terminal pole 1, which lies in a plane parallel to and spaced from the plane in which the upper annular area of the peripheral toothed area Projection 14 is located. Nevertheless, the annular sealing projection 19 directly adjoins the peripheral projection 14 provided with the toothing. In other words, between the sealing projection 19 and the projection 14 no further projection is provided.
• FIGS. 2, 3, 4 and 5 can be seen in particular that between the sealing projection 19 and the projection 14, an annular undercut region 21 is provided.
• the leak-free sealing can be achieved in an effective manner, in particular, if the circular sealing projection 19, seen in the radial direction of the connection pole 1, is wider than the respective valley-shaped regions 22 of the toothing of the projection. Jump 14 protrude. In this case, however, it is not necessary for the annular sealing projection 19 to protrude further in the radial direction than the radially protruding regions of the toothing of the projection 14.
• preferred dimensions of the in FIG. 3 indicated diameter and lengths of the terminal pole 1 shown there indicated:
• FIG. 6 shows an isometric view of a second exemplary embodiment of the connection pole 1 according to the invention.
• This second exemplary embodiment is shown in FIG. 7 schematically in a side view and in FIG. 8 schematically shown in a longitudinal sectional view again.
• the terminal pole 1 substantially corresponds to the terminal pole according to the first exemplary embodiment, so that only differences between these two embodiments will be discussed below in order to avoid unnecessary repetition.
• the annular sealing projection 19 has a lower annular area facing away from the connection area 2, which lies in a plane that the plane corresponds, in which also the upper annular surface of the provided with the toothing circumferential projection 14 is located.
• no undercut is provided between the sealing projection 19 and the protrusion 14 serving to prevent rotation.
• terminal poles 1 each have linear profiles in the longitudinal direction, d. H. corresponding conical sections or areas. Conceivable in this context are also embodiments of a terminal pole 1, in which an arcuate course of the inner wall 9 and the outer wall 6 is selected in the mounting portion 3.
• connection pole L Longitudinal axis of the connection pole

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Connection Of Batteries Or Terminals (AREA)
• Sealing Battery Cases Or Jackets (AREA)
• Dry Shavers And Clippers (AREA)
• Battery Mounting, Suspending (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=60327283

Family Applications (1)

Country Status (7)

Families Citing this family (5)

Family Cites Families (21)

• 2017
  • 2017-10-25 CA CA3075197A patent/CA3075197A1/en active Pending
  • 2017-10-25 US US16/759,019 patent/US20200328398A1/en active Pending
  • 2017-10-25 KR KR1020207014360A patent/KR102600626B1/ko active IP Right Grant
  • 2017-10-25 WO PCT/EP2017/077283 patent/WO2019081007A1/de unknown
  • 2017-10-25 MX MX2020004226A patent/MX2020004226A/es unknown
  • 2017-10-25 EP EP17797879.8A patent/EP3701577A1/de active Pending
  • 2017-10-25 CN CN201780096164.0A patent/CN111247666A/zh active Pending

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