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
  • H01M50/543—Terminals
  • H01M50/552—Terminals characterised by their shape
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
  • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
  • H01R11/28—End pieces consisting of a ferrule or sleeve
  • H01R11/281—End pieces consisting of a ferrule or sleeve for connections to batteries
• • 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
  • H01R13/02—Contact members
  • H01R13/10—Sockets for co-operation with pins or blades
  • H01R13/11—Resilient sockets
  • H01R13/111—Resilient sockets co-operating with pins having a circular transverse section
• • 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
  • H01R13/02—Contact members
  • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
  • H01R13/18—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with the spring member surrounding the socket
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
  • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
  • H01R11/28—End pieces consisting of a ferrule or sleeve
  • H01R11/281—End pieces consisting of a ferrule or sleeve for connections to batteries
  • H01R11/289—End pieces consisting of a ferrule or sleeve for connections to batteries characterised by the shape or the structure of the battery post
• • 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

• Pole Terminal The invention relates to a pole terminal for a pole, in particular a battery pole, for providing an electrical contact to this pole.
• Pole clamps are used to make electrical contact to a pole, such as a pole of a battery. If an electrical contact to a battery terminal is to be provided, this is also referred to as a battery pole terminal or battery terminal.
• battery terminals for use in motor vehicles for example, forged components are used. These forging clamps are very stable, but relatively heavy.
• Battery pole terminals are also known, which are designed to make electrical contact with conical poles of car batteries, in particular those terminals in which the tightening process is connected during assembly with a tangential sliding movement relative to the pole surface.
• pole terminals it is known that during the tightening process, ie after the pole terminal has been pushed onto the pole and during the actuation of a tightening mechanism, the pole terminals slide off the pole without elaborate precautions. Furthermore, it is found that after mounting on the pole, the pole terminals do not generate a sufficiently high clamping force to meet the requirements of the clamping strength.
• the mechanically and electrically reliable contacting of the battery to supply the electrical systems has a safety-relevant significance in automotive applications. In the vehicle manufacturers are battery systems with cone-shaped poles, z. B. according to
• the Zuziehvorgang itself often leads in practice to partial to complete slipping of the terminal from the pole.
• the reason for this lies in the conical shape of the pole which, in the case of clamping forces FA perpendicular to the pole axis, always causes a force component in the sliding pole axis direction in addition to the surface-normal contact forces.
• the mechanical clamping strength can be optimized by maximum contact forces at maximum friction coefficients at the pole contact surfaces.
• the challenge is the realization as a compact mechanism, which also in lightweight construction, z. B. with sheet materials, can be displayed, for example. By addition of a tangential looping.
• the respective properties can be optimally optimized by material and geometry design.
• the electrical terminal resistance namely design contacting component
• the mechanical clamping strength namely design Klemmkraftkompo- component.
• the document EP 2 333 905 A1 describes a battery terminal, which serves to produce an electrical contact to a battery terminal, with an inner shell and an outer shell.
• the inner shell is designed as a contact clip.
• the outer shell is used for mechanical stabilization and assumes additional functions, such as. A rotation of a screw, a captive mother, a stabilization of a departure plate, a recording of a connection box, a label of battery poles u. ä. Disclosure of the invention
• the presented pole terminal serves to provide an electrical contact to a pole.
• the pole axis or central axis of the pole defines an axial direction.
• the pole terminal comprises a force element and a contact element.
• the force element which serves to transmit a force to the contact element, comprises a compression region and a force region.
• the contact element serves to provide the electrical contact to the battery pole, to ensure the current transport and to make the mechanical friction contact with the pole surface and the contact surface to the force element. It has a base body which has a receptacle for receiving the pole, wherein a number of parting lines are provided in the base body.
• the contacting element or the segments of the contacting element which are formed between the parting lines conforms to the pole. The segments are pressed against the pole, without causing the segments to slide over the pole surface.
• the force element and the contact element are arranged such that the force element at least partially surrounds the contact element and that the force element and the contact element are at least partially connected to each other via respective contact surfaces along which the force element and the contact element upon actuation of the pole terminal itself move relative to each other. This means that when the pole terminal is actuated or tightened, a relative movement is detected. tion between the force element and contact element, typically a sliding movement along the facing contact surfaces.
• the problems mentioned above can be solved.
• the assembly process is simplified by reducing the tendency to slip, the resistance to external pull-off forces or twisting torques is increased.
• the pole terminal described also allows the realization of a corresponding pole terminal with sheet metal bending components.
• the presented pole terminal is based on the functional division into two design elements, namely a force element and a contacting element. Basically, a one-piece or one-piece or a multi-part, in particular a two-part construction is possible. Both components can also consist of several subcomponents.
• the Polklemme goes beyond the state of the art in the coordination of the two design elements by specifying the aspects of contact geometry and friction: Thus constructive measures are described, which address the access behavior during assembly as well as the resulting sliding behavior and thus the reliable provision of the necessary Clamping strength and electrical contact.
• a pole terminal which can be easily positioned on the pole and mount without sliding and simultaneously optimizes the clamping connection in terms of their mechanical clamping strength and their electrical contact resistance, the disadvantages mentioned above, at least in some of Designs, to be avoided.
• Such a pole terminal can be realized in particular from sheet metal bending components.
• Figure 1 shows a pole with pole terminal to illustrate the effect of force on contact surfaces.
• Figure 2 shows an embodiment of a contacting element.
• FIG. 3 shows a schematic representation of a geometric design of a contacting element that compensates for a cone shape of a pole relative to a force element.
• FIG. 4 shows a further embodiment of the presented pole terminal.
• Figure 5 shows a pole terminal, which operates on the forceps principle.
• Figure 6 shows a pole terminal, which operates on the train principle.
• FIG. 1 shows a pole 10 which is contacted with a pole terminal 12.
• a clamping force FA 14 is applied, which is directed perpendicular to the pole axis 16, which is defined by the center axis of the pole.
• the conical shape of the pole results in addition to the surface-normal contact force F 18 and a force component in sliding Polachsraum, the so-called Abgleitkraft FT 20. This must be compensated in many cases by a holding force FH24.
• FIG 2 shows on the left side an embodiment of amaschineierelements, which is designated overall by the reference numeral 50.
• This contact element 50 comprises a main body 52 which encloses a receptacle, which is not visible in this illustration, since it lies inside.
• the contacting element 50 is slipped over a pole so that it is received in the receptacle.
• the main body 52 are dividing provided 54 which extend substantially in the axial direction, ie substantially parallel to the polar axis (reference numeral 16 in Figure 1).
• the figure shows a derivative 56 for deriving electrical current, which is formed in this case on the base body 52.
• the contacting element 50 which is surrounded by a force element 60, shown.
• This force element 60 serves to be able to initiate a force, wherein this force is transmitted to the contacting element 50, so that it rests securely on the pole and a good electrical contact, a contact with low contact resistance, is provided.
• Force on the force element 60 can be introduced in different ways. This can, for example, according to the pliers principle via lever or train principle, for example. With a screw, so that a tangential tensile force is initiated, be realized.
• FIG. 3 illustrates measures for compensating the conical shape of the pole and shows a pole 100 in a schematic representation on the left side a contact element 102 abuts, which in turn is surrounded or wrapped by a force element 104. Between the force element 104 and the contacting element 102, a first friction or contact surface 110 is formed. Zwi see the contacting element 102 and the pole 100 is a second friction or
• measures for fixing the force element 104 during assembly may be provided.
• Fixing here means securing against axial slipping and / or securing against twisting, for example by means of form-locking measures.
• the illustration further shows on the right side in section a specially formed contacting element 120 with a correspondingly formed force element 122.
• the concave shape of the contact surface 124 of the contacting element 120 and the corresponding convex shape of the contact surface 126 of the force element 122 results in a curved contact region 128, which prevents a relative movement of contacting element 120 and force element 122 in the axial direction and thus slipping.
• FIG. 4 shows a further embodiment of the pole terminal, which is denoted overall by the reference numeral 150.
• the illustration shows the contacting element 152 with a discharge 154, which is surrounded by a force element 156. At the upper boundary edge of the force element 156, two extensions 158 are formed, which prevent a rotation of the contact element 152.
• FIG. 5 shows a pole 200 which is surrounded by a contacting element 202.
• a force element 204 is provided, which in this case works according to the forceps principle and wraps or wraps around the contacting element 202.
• the force element comprises a force region 206 and a compression region 208, in this case a gap.
• the compression area 208 is shown here as a gap. Alternatively, this may also be an area in which a material other than in the force range is used and / or a lower material thickness than in the force range is used.
• FIG. 6 shows a further pole 250, which is surrounded by a contacting element 252, which in turn is looped around by a force element 254.
• This likewise consists of a force region 256 and a compression region 258, for which the same as for the compression region 20 from FIG. 5 is applicable.
• the compression region 258 is compressed and the force region exerts a tensile force in the tangential direction, which causes a force to be exerted in the radial direction on the contacting element 252, so that it conforms to the pole 250.
• the tangential relative movements of the contact surfaces of the force element 254 relative to the pole 250 should act primarily as relative sliding between force element 254 and contacting element 252 and not as friction-induced tangential relative movement between contacting element 252 and pole surface. This is particularly supported when the force element 254 and the contacting element 252 are formed such that the friction between the contacting
• the presented pole clamp comprises all embodiments of the force element in which the clamping force structure is connected to a roof-like relative movement between the contact surface of the force element and the pole surface.
• These include in particular force elements that are based on the principle of wrap.
• the structure of a force normal to Polachse force occurs here by actuation of a tightening mechanism, such as by pulling or clamping a loop, whereby the construction of a tangential stress in the loop an associated elongation and thus a relative movement between the loop and pole surface with respect to the circumferential angle, a so-called elongation slide, connected.
• a tightening mechanism such as by pulling or clamping a loop
• a tightening mechanism such as by pulling or clamping a loop
• the contact element is at least in the region of the force element contact along the circumferential direction by interrupting the structural material cohesion, divided by so-called parting lines, in at least two contact sections or contact segments, so-called contact fingers, wherein the contact segments may belong to the same or to several separate sub-components.
• the radial positions and deformations of the individual contact segments in the clamping contact region are largely decoupled from each other in terms of power.
• the normal to the pole axis portions of the contact force generated by the external force element on the outside of the contacting substantially largely passed without weakening by structural deformation forces as the contact pressure of the contacting on the pole surface.
• this radial polar variations in the contact of the pole surface can be compensated by the contact segments with minimal contact force losses.
• the necessary withdrawal forces during disassembly of the terminal from the pole after release of the force element are determined only by the elastic residual contact forces between the pole and contact fingers.
• two versions of the joints can be distinguished as expansion joints or as shrink joints and optimized in their respective function.
• both variants can occur together or exclusively: la) During assembly, the contact fingers are moved radially outwards by slipping on the conical PoloberDowne by sliding the contact element axially onto the pole, thereby widening the expansion joints in the circumferential direction. Advantage: prefixing by elastic clamping forces that prevent slipping Make it difficult to clamp by acting on the subsequent tightening of the force element external forces. lb) By tightening the force element during assembly, the contact segments are moved in the radial direction to the PoloberDambae and still open inner contacts between the pole and intermediate element thereby closed. This requires the design of the joints as sufficiently wide shrinking joints.
• the contact fingers should slide as little as possible or not at all on the PoloberDowne after being pushed onto the Polkonus during the tightening process. This can be achieved by the following properties, which can occur individually or in combination:
• Tangential force can be minimized, which is compensated by the tangential friction bias in the outer frictional contact. As a result, a higher proportion of force is available for the structural mechanical diversion as a normal force in the inner contact. With a general maximization of ⁇ independent of this, the semi-friction force can be maximized, which after the assembly is used to slip the
• the inner contact element geometrically compensates the cone shape of the pole with respect to the contact surface of the outer clamping force element. Clamping forces normal to the polar axis can thereby be applied to the outside of the contacting element, without the corresponding external clamping force element experiencing an axial force in the sliding-down direction. In particular, for tolerance reasons, overcompensation is possible and useful, which generates a net force directed to the bottom of the pole under tightening conditions on the external force element.
• the inner contact element provides geometric in the axial pole direction a positive connection with the outer force element ago, for example.
• a positive connection can also be expressly represented by the terminal outlets required in point 4 below, in particular by a terminal outlet on the upper side of the pole.
• the contacting element has above and / or below the Anpress Schemes a departure for the current dissipation and for introducing the outer mechanical loads. In this way, the latter are supported via the contact with the pole directly on the pole.
• the battery currents must then pass only the contact resistance between the pole and contact element. Both can be selectively optimized by constructive design of the inner contact surface of the intermediate element, so that the contact friction maximum and the contact resistance is minimal.
• the contacting element contains a structural expression, which serves as a positive rotation of the force element about the polar axis relative to the contact element.
• a support contact can be realized for example by one or more axial extension on the upper or lower boundary edge of the contacting, which are supported in corresponding recesses of the intermediate element against rotation.
• the support can also be made directly at the terminal outlet.
• the contacting element contains structural features for support on

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Connection Of Batteries Or Terminals (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

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Citations (6)

Family Cites Families (9)

• 2017
  • 2017-09-05 DE DE102017215524.8A patent/DE102017215524A1/de active Pending
• 2018
  • 2018-07-16 CN CN201880057410.6A patent/CN111095679B/zh active Active
  • 2018-07-16 WO PCT/EP2018/069255 patent/WO2019048118A1/de active Application Filing

Patent Citations (6)

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