• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a motor vehicle charging cable (10) for direct voltage charging of an electrical energy store of a motor vehicle, with a cable jacket, with a cooling fluid-cooled first electrical conductor for a first direct voltage phase, with a cooling fluid-cooled second electrical conductor for a second direct voltage phase, with an earth conductor or equipotential bonding conductor and / or with at least one control manager. The first and second electrical conductors, the earth conductor or equipotential bonding conductor and / or the at least one control conductor are enclosed by the cable jacket. At those positions of the motor vehicle charging cable (10) at which it is fixed in brackets, i.e. at least in the area of a first end (10a) and a second end (10b), there are between the cable jacket and the electrical conductors, the earth conductor or equipotential bonding conductor and / or the at least one control conductor, shaped elements are arranged which guide the electrical conductors, the earth conductor or equipotential bonding conductor and / or the at least one control conductor, clamp and restrict a relative movement between them. Between those positions of the motor vehicle charging cable at which it is fixed in brackets, the cable jacket restricts relative movement between the electrical conductors, the earth conductor or equipotential bonding conductor and / or the at least one control conductor.
    公开号:CH716221A2
    申请号:CH00504/20
    申请日:2020-04-29
    公开日:2020-11-30
    发明作者:Heyne Raoul；Rönfanz Jari；Köhler David
    申请人:Porsche Ag；
    IPC主号:
    专利说明:

    The invention relates to a motor vehicle charging cable.
    From DE 10 2015 120 048 A1 a motor vehicle charging cable for direct voltage charging of an electrical energy store of a motor vehicle is known. From this prior art, a motor vehicle charging cable with a first electrical conductor for a first DC voltage phase and a second electrical conductor for a second DC voltage phase is known, the two electrical conductors being surrounded by a cable jacket of the charging cable. Each of the two electrical conductors has in each case a conductor sheath designed as an insulation layer, conductor cores of the respective electrical conductor running in the insulation layer of the respective electrical conductor. A cooling fluid channel is formed between the respective insulation layer and the respective conductor cores of the respective electrical conductor, in which a cooling fluid can be guided for cooling the respective electrical conductor. The respective conductor cores of the respective electrical conductor are flowed around by cooling liquid and therefore cooling fluid-cooled from the outside.
    [0003] With increasingly greater electrical charging powers, more waste heat is generated during charging, which has to be dissipated by the electrical conductors of the motor vehicle charging cable. This increases the diameter of the motor vehicle charging cable. Motor vehicle charging cables known from practice are difficult to handle because of their high rigidity and thus high bending radii. There is therefore a need for a motor vehicle charging cable from which, on the one hand, heat can be effectively dissipated and, on the other hand, is easy to handle.
    The object of the invention is to create a cooling fluid-cooled motor vehicle charging cable with improved handling. This object is achieved by a motor vehicle charging cable according to patent claim 1.
    The motor vehicle charging cable according to the invention has a cable jacket, a first cooling fluid-cooled electrical conductor for a first DC voltage phase and a second cooling fluid-cooled electrical conductor for a second DC voltage phase, a ground conductor or equipotential bonding conductor and / or at least one control conductor. The first and second electrical conductors, the earth conductor or equipotential bonding conductor and / or the at least one control conductor are enclosed by the cable jacket.
    The motor vehicle charging cable according to the invention has a first end via which the motor vehicle charging cable can be coupled to a charging socket of a motor vehicle via a charging plug attached to the first end. The motor vehicle charging cable according to the invention has a second end via which the motor vehicle charging cable can be coupled to a charging column.
    At those positions of the motor vehicle charging cable where the same is fixed in brackets, i.e. at least in the region of the first end and the second end, molded elements are formed between the cable jacket and the electrical conductors, the ground conductor or equipotential bonding conductor and / or the at least one control conductor arranged, which lead the electrical conductors, the earth conductor or equipotential bonding conductor and / or the at least one control conductor, clamp and restrict a relative movement between the same.
    Between those positions of the motor vehicle charging cable at which the same is fixed in brackets, the cable jacket restricts relative movement between the electrical conductors, the earth conductor or equipotential bonding conductor and / or the at least one control conductor.
    In the motor vehicle charging cable according to the invention, the electrical conductors running in the cable jacket, the ground conductor or equipotential bonding conductor and / or the at least one control conductor are guided and clamped exclusively at those positions of the motor vehicle charging cable via molded elements on which the motor vehicle charging cable is fixed in brackets. Only in these positions is the relative movement between the electrical conductors, the earth conductor or equipotential bonding conductor and / or the at least one control conductor in addition to the cable sheath restricted by the shaped elements.
    At intermediate positions at which the motor vehicle charging cable is not fixed in brackets, the cable sheath limits the relative movement between the conductors guided in the cable sheath.
    On filler material, which is positioned in the cable jacket between the electrical conductors, the earth conductor or equipotential bonding conductor and / or the at least one control conductor in known motor vehicle charging cables, is therefore dispensed with in the motor vehicle charging cable according to the invention. This ensures better flexibility and thus easy handling of the motor vehicle charging cable, although heat can be effectively dissipated from the motor vehicle charging cable by cooling the electrical conductors.
    According to an advantageous development of the invention, the respective shaped element has a cylindrical base body which has slots or grooves running in the longitudinal direction on its outer surface, via which the electrical conductors, the earth conductor or equipotential bonding conductor and / or the at least one control conductor in recesses of the respective formula elements can be introduced. Such a shaped element takes on the one hand the electrical conductors, the earth conductor or equipotential bonding conductor and / or the at least one control conductor, on the other hand, such a shaped element reliably guides and clamps the conductors at the corresponding positions at which the respective shaped element is positioned along the motor vehicle charging cable.
    According to an advantageous development, clamping elements are arranged around the cable jacket at those positions of the motor vehicle charging cable at which the shaped elements are arranged, which clamp elements press the cable jacket against the shaped elements. At each position of the motor vehicle charging cable at which it is fixed in a holder, there is on the one hand a shaped element between the cable jacket and the electrical conductors, the earth conductor or equipotential bonding conductor and / or the at least one control conductor and, on the other hand, a preferably two-part clamping ring formed clamping element arranged around the cable jacket. The cable sheath is pressed against the shaped elements via the clamping elements at those positions of the motor vehicle charging cable at which the shaped elements are positioned, whereby a particularly preferred and secure clamping of the conductors running in the cable sheath is then possible. According to an advantageous development of the invention, the motor vehicle charging cable is also fixed in a holder at at least one position between the first end and the second end thereof, in particular in a roof-like arm of the charging column adjacent to the second end and / or in a handle adjacent to the first end. When the motor vehicle charging cable is also fixed between the first end and the second end of the same on a roof-like arm of the charging column in a corresponding holder, a corresponding shaped element is also positioned at this position. The same applies if an additional handle is provided on the motor vehicle charging cable in order to grasp and handle the motor vehicle charging cable not only in the area of the charging plug with one hand, but also on the handle with a second hand.
    Preferred developments of the invention emerge from the subclaims and the following description. Embodiments of the invention are explained in more detail with reference to the drawing, without being restricted thereto. It shows:<tb> Fig. 1 <SEP> a charging station together with a motor vehicle charging cable according to the invention;<tb> Fig. 2 <SEP> a cross section through a motor vehicle charging cable according to the invention at a position between brackets,<tb> Fig. 3 <SEP> a detail of the motor vehicle charging cable in the area of a first end, via which the motor vehicle charging cable can be coupled to a charging socket of a motor vehicle via a charging plug attached to the first end,<tb> Fig. 4 <SEP> a detail of FIG. 3,<tb> Fig. 5 <SEP> shows a detail of FIG. 4, namely a form element,<tb> Fig. 6 <SEP> a further detail of FIG. 4, namely a part of a clamping element,<tb> Fig. 7 <SEP> a detail of the motor vehicle charging cable in the area of a second end, via which the motor vehicle charging cable can be coupled to the charging column,<tb> Fig. 8 <SEP> a detail of the motor vehicle charging cable in the area of a further holder for the motor vehicle charging cable positioned between the first end and the second end,<tb> Fig. 9 <SEP> a detail of the motor vehicle charging cable in the area of a further holder for the motor vehicle charging cable positioned between the first end and the second end.
    The invention relates to a motor vehicle charging cable for direct voltage charging of an electrical energy store of a motor vehicle.
    Fig. 1 shows a charging station 1, at which an electric vehicle or hybrid vehicle can be charged. The charging station 1 is used for direct voltage charging of the electric vehicle or hybrid vehicle. A motor vehicle charging cable 10 is provided on the charging column 1.
    At a first end 10a of the motor vehicle charging cable 10, the motor vehicle charging cable 10 has a charging plug 25 via which the motor vehicle charging cable 10 can be coupled to a motor vehicle, namely to a charging socket of the motor vehicle. The motor vehicle charging cable 10 is fixed to the charging plug 25 at this first end 10a. At an opposite second end 10b of the motor vehicle charging cable 10, the same is coupled to the charging station 1, namely to electrical power or line components of the charging station 1, in order to ultimately provide the DC voltage for DC charging and to transmit it via the motor vehicle charging cable 10 in the direction of the motor vehicle to be charged. The motor vehicle charging cable 10 is fixed to the charging column 1 at this first end 10b.
    In the embodiment shown in Fig. 1, the motor vehicle charging cable 10 is fixed at a total of three positions in corresponding brackets, in the area of the first end 10a on the charging plug 25, in the area of the second end 10b on the charging station 1, and between the first End 10a and the second end 10b at a position 10c at which the motor vehicle charging cable 10 is fixed to a bracket 2 of the charging station 1.
    Fig. 2 shows a highly schematic cross section through the motor vehicle charging cable 10 at a position between the ends 10a, 10b and outside the position 10c.
    The motor vehicle charging cable 10 has a first electrical conductor 11 for a first DC voltage phase and a second electrical conductor 12 for a second DC voltage phase. The two electrical conductors 11, 12 are surrounded by a cable jacket 13.
    Within a cavity 14 of the motor vehicle charging cable 10 defined by the cable jacket 13, in the embodiment shown in FIG. 1, not only are the two electrical conductors 11, 12 positioned for the two DC voltage phases, but rather run within this cavity 14 in the embodiment shown in FIG also a ground conductor 15 or equipotential bonding conductor and a control conductor 16 with several control lines 17. Only the ground conductor 15 or equipotential bonding conductor or the control conductor 16 can also be present. Several control conductors 16 can also be present. Only the term earth conductor 15 will be used below. A ground conductor can also be referred to as a potential equalization conductor.
    The first electrical conductor 11 and the second electrical conductor 12 each have a conductor sheath 19 composed of an outer covering layer 19a and an inner covering layer 19b. The respective outer covering layer 19a is preferably a covering layer made of plastic, in particular an outer covering layer 19a made of TPE (thermoplastic elastomers). The inner covering layer 19b, which adjoins the outer covering layer 19a of the conductor covering 19 of the respective electrical conductor 11, 12, is an aluminum composite film impermeable to cooling fluid or preferably a PET or PETP (polyethylene terephthalate) composite film.
    The PET or PETP composite film, which provides the inner covering layer 19b of the conductor sheath 19 of the respective electrical conductor 11, 12, is preferably coated with an adhesive layer on a side facing the outer covering layer 19a or is self-adhesive, so that the two covering layers 19a , 19b of the conductor sleeve 19 of the respective electrical conductor 11, 12 adhere to one another.
    Each of the two electrical conductors 11, 12 has a conductor core strand 20 positioned within the respective conductor sheath 19 and composed of several conductor cores 21, each of the electrical conductors 11, 12 comprising a total of twelve conductor cores 21 in the embodiment shown in FIG. This number can also be different. Each of these conductor wires 21 comprises a plurality of preferably twisted wire strands (not shown).
    Each of the two electrical conductors 11, 12 has a first cooling fluid channel 22 for cooling the conductor strand 20 of the respective electrical conductor 11, 12 from the inside, this first, inner cooling fluid channel 22 being enclosed by the conductor cores 21.
    Preferably, the conductor wires 21 are twisted around the first, inner cooling channel 22, which is defined by a tube or hose.
    Each of the two electrical conductors 11, 12 also has a second cooling fluid channel 23 for cooling the respective conductor strand 20 of the respective electrical conductor 11, 12 from the outside, this second cooling fluid channel 23 the conductor cores 21 of the respective electrical conductor 11, 12 on the outside encloses.
    Between the conductor wires 21 and the inner sheath layer 19b of the conductor sheath 19 of the respective electrical conductor 11, 12, a plurality of tubular spacers 24 are positioned which subdivide the respective second, outer cooling fluid channel 23, through which the cooling fluid flows and which on the one hand against each other and on the other hand against the inner covering layer 19b of the conductor sleeve 19 of the respective electrical conductor 11, 12 and preferably also against the conductor cores 21 of the respective electrical conductor 11, 12.
    In the embodiment shown in Fig. 2, each of the electrical conductors 11, 12 comprises a total of eighteen tubular spacers 24. The number of spacers 24 can also be different.
    The first, inner cooling fluid channel 22 of the respective electrical conductor 11, 12 of the motor vehicle charging cable 10 according to the invention is flowed through by the cooling fluid in a first direction and preferably forms a cooling fluid flow.
    Via the first, inner cooling fluid channel 22, the conductor cores 21 of the respective electrical conductor 11, 12 can be cooled from the inside.
    The second, outer cooling fluid channel 23 of the respective electrical conductor 11, 12 of the motor vehicle charging cable 10 is flowed through by the cooling fluid in an opposite second direction and preferably forms a cooling fluid return. Cooling fluid, which flows through the second, outer cooling fluid channel 23, cools the conductor cores 21 of the respective electrical conductor 11, 12 directly or immediately from the outside.
    The conductor cores 21 of the respective electrical conductor 11, 12 preferably do not have an insulation layer and are therefore free of an insulation layer so that the cooling fluid of the second, outer cooling fluid channel 23 can wash around them directly.
    Via the second, outer cooling fluid channel 23, the conductor cores 21 of the respective electrical conductor 11, 12 can be cooled from the outside.
    The first, inner cooling fluid channel 22 and the second, outer cooling fluid channel 23 of the respective electrical conductor 11, 12 define a conductor-specific cooling circuit for the respective electrical conductor 11, 12, namely for the conductor cores 21 of the same.
    Each electrical conductor 11, 12 is individually or individually cooled, namely from the inside and outside via an individual cooling circuit.
    The tubular spacers 24, through which the cooling fluid flows and the cooling fluid flows around them, lie on the inner cladding layer 19b of the conductor sleeve 19 of the respective electrical conductor 11, 12 and on the conductor cores 21 of the respective electrical conductor 11, 12, the Spacers 24 preferably adhere to the inner sheath 19b of the conductor sheath 19 of the respective electrical conductor 11, 12.
    For this purpose, the PET or PETP composite film, which provides the inner covering layer 19b of the conductor sheath 19 of the respective electrical conductor 11, 12, is coated with an adhesive layer or self-adhesive on a side facing away from the outer covering layer 19a.
    Adjacent spacers 24 each rest loosely against one another. The spacers 24 also lie loosely on the conductor wires 21 and are preferably twisted around the conductor wires 21.
    In order to cool the conductor cores 21 of each electrical conductor 11, 12 of the motor vehicle charging cable 10, cooling fluid can therefore be passed through the inner, first cooling fluid channel 22 in the sense of a flow in order to cool the conductor cores 21 from the inside.
    In the area of the end 10a of the motor vehicle charging cable 10, the cooling fluid passed through the first cooling fluid channel 22 can be diverted into the second, outer cooling fluid channel 23, in order to then flow the cooling fluid back via the second cooling fluid channel 23 from the end of the motor vehicle charging cable 10 on the motor vehicle side in the direction attributable to the end 10b of the motor vehicle charging cable 10 on the charging column side.
    In the area of the second cooling fluid channel 23, the cooling fluid flows through the cooling fluid channel 23 in such a way that the spacers 24 are flowed through and around the cooling fluid. The inner cladding layer 19b of the conductor sheath 19 of the respective electrical conductor 11, 12 prevents cooling fluid from leaving the respective electrical conductor 11, 12 via the conductor sheath 19.
    The cable sheath 13 closes the motor vehicle charging cable 10 to the outside and defines the cavity 14 for receiving the electrical conductors 11, 12, the at least one control conductor 16 and the earth conductor 15 or potential equalization conductor.
    As stated above, in addition to the electrical conductors 11, 12 and in addition to the control conductor 16, the ground conductor 15 is preferably positioned in the cavity 14 defined by the cable sheath 13. According to FIG. 2, no hose-like filling elements are positioned in the cavity 14 which restrict the relative movement between the conductors 11, 12, 15 and 16. Rather, at those positions of the motor vehicle charging cable 10 at which it is not fixed in a holder and has the structure according to the cross section of FIG. 2, the relative movement between the conductors 11, 12, 15 and 16 is preferably limited exclusively by the cable jacket 13.
    At those positions of the motor vehicle charging cable 10 at which the motor vehicle charging cable 10 is fixed in brackets, the same has a structure different from that of FIG. 2, namely to the effect that at these positions of the motor vehicle charging cable 10, at least in the area of the first End 10a as well as the second end 10b and in the embodiment of FIG. 1 also at position 10c, between the cable jacket 13 and the conductors 11, 12, 15 and 16, an elastic molded element 18 is arranged, which the electrical conductors 11, 12, the earth conductor 15 or equipotential bonding conductor and / or the at least one control conductor 16 leads, clamps and restricts the relative movement between them in addition to the cable sheath 13.
    3 and 4 show details of the motor vehicle charging cable 10 according to the invention in the region of the first end 10a of the same, at which the motor vehicle charging cable 10 has the charging plug 25, via which the motor vehicle charging cable 10 can be coupled to a charging socket of an electric vehicle or hybrid vehicle. In the area of the charging plug 25, the motor vehicle charging cable 10 is fixed in a holder or in the charging plug 25.
    In the area of this charging plug 25, the first end 10a of the motor vehicle charging cable 10 is fixed, between the cable jacket 13 and the electrical conductors 11, 12 that are visible or shown in FIGS. 3 and 4 and those not shown in FIGS Ground conductor 15 or equipotential bonding conductor and at least one control conductor 16, the shaped element 18 is positioned. As can be seen in FIGS. 3 and 4, a clamping element 26 composed of two clamping element halves 27 is positioned at the end 10a around the motor vehicle charging cable 10, namely around the cable jacket 13, with only one such clamping element half 27 of the clamping element in FIGS. 3 and 4 26, which together define a clamping ring. By means of the clamping ring which is provided by the clamping element 26 or the clamping element halves 27 thereof, the cable sheath 13 is pressed against the shaped element 18 and clamped on the same.
    5 shows a perspective illustration of the molded element 18 alone. The molded element 18 has a cylindrical base body 28, with grooves 30 or slots 31 being formed on a lateral surface 29 of the base body 28, which extend in the longitudinal direction of the base body 28 and interrupt the lateral surface 29 of the base body 28. The conductors 11, 12, 15 and 16 can be inserted into the molded element 18 via these grooves 30 or slots 31, namely the electrical conductors 11, 12 via the grooves 30 and the earth conductor 15 or equipotential bonding conductor and the at least one control conductor 16 via the slots 31, so that the conductors 11, 12, 15 and 16 are guided in corresponding recesses in the molded element 18.
    The respective shaped element 18 is preferably made of a polyamide material.
    Via the clamping element 26, the cable jacket 13 is pressed against the molded element 18 and the molded element 18 against the conductors 11, 12, 15 and 16, so that the conductors 11, 12, 15 and 16 at the end 10a of the motor vehicle charging cable 10 cannot be displaced to one another are fixed and a holding or clamping of the motor vehicle charging cable 10 is advantageously possible.
    Fig. 6 shows a perspective single representation of a clamping element half 27 of a clamping element 26, wherein clamping element halves 27, which together define a clamping ring, are preferably connected to one another by screws.
    The molded element 18 is preferably a molded element made of a flexible material, such as a polyamide material. The cable sheath 13 is preferably made from a likewise flexible material, preferably from a polyurethane material. The clamping elements 26 or clamping element halves 27, however, are made of a dimensionally stable, rigid and less flexible plastic.
    FIG. 7 shows a detail of the motor vehicle charging cable 10 in the region of the second end 10b of the same, via which the same is fixed to the charging column 1. 7 shows a cross section through the charging cable 10 with the cable jacket 13 partially removed, FIG. 7 showing the cable jacket 13 of the motor vehicle charging cable 10 and the two electrical conductors 11, 12 and the molded element 18.
    The ground conductor 15 or equipotential bonding conductor and the at least one control conductor 16 are not shown in FIG. 7 as well as in FIGS. 3 and 4 for the sake of simplicity.
    At the second end 10b of the motor vehicle charging cable 10, via which it is coupled to the charging column 11, the shaped element 18 is accordingly positioned between the cable jacket 13 and the conductors 11, 12, 15 and 16, which the relative movement between the conductors 11 , 12, 15 and 16 and a holding or clamping of the motor vehicle charging cable 10 is advantageously possible.
    Also at the second end 10b, a clamping element 32 is arranged around the cable jacket 13, which presses the cable jacket 13 against the shaped element 18 and the shaped element 18 against the conductors 11, 12, 15 and 16, this clamping element 32 like a Clamping sleeve is designed with two sleeve parts that can be screwed to one another. When a first sleeve part is tightened, the second sleeve part of the clamping element 32 is then pressed against the cable jacket 13.
    8 shows a section from the motor vehicle charging cable 10 in the area of position 10c, to which the motor vehicle charging cable is fixed in the area of the boom 2 of the charging column. A shaped element 18 is positioned between the cable jacket 13 and the conductors, of which only the electrical conductors 11, 12 are shown in FIG. 8, but which is covered by the clamping element 32 in the view of FIG. 3. The clamping element 32 of FIG. 8, like the clamping element 32 of FIG. 7, is designed as a clamping sleeve with two sleeve halves 32a, 32b that can be rotated relative to one another, whereby by rotating the sleeve half 32b relative to the sleeve half 32a, the sleeve half 32a against the cable jacket 13 and so on Cable sheath 13 is pressed against the shaped element 18 in order to ensure a secure clamping of the conductors 11, 12, 15 and 16 here. FIG. 8 also shows a sealing element 33 which seals the charging cable 10 in the area of the boom 2 of the charging column 1 and protects it against friction on sharp edges.
    It is possible to provide a further handle 34 adjacent to the first end 10a and thus adjacent to the charging plug 25, which has a handle 25a, this further handle 34 then serving to grasp the charging cable with another hand than the hand which grips the charging plug 25 in the area of its handle 25a. 9 shows a cross section through the charging cable 10 in the area of such a further handle 34, the charging cable 10 also being fixed in this position and a shaped element in this position again between the cable sheath 13 and the conductors 11, 12, 15 and 16 18 is positioned. Analogous to FIGS. 3 to 6, a clamping ring 26 made of the clamping ring halves 27 is arranged around the cable jacket 13, which surrounds the cable jacket 13 and presses against the conductors 11, 12, 15 and 16 and thus holds or clamps the conductors 11, 12, 15, 16 of the motor vehicle charging cable 10 advantageously allows.
    The automobile charging cable 10 has a simple structure. The shaped elements 18, which limit the relative movement of the conductors 11, 12, 15 and 16 to the cable sheath 13 and advantageously enable the motor vehicle charging cable to be held or clamped, are only used in those positions of the charging cable 10 at which it is fixed in brackets. No further, cylindrical filling elements are used which restrict the relative mobility of the conductors 11, 12, 15 and 16 beyond the cable sheath 13. As a result, the motor vehicle charging cable 10 has small bending radii and easy handling.
    权利要求:
    Claims (10)
    [1]
    1. Motor vehicle charging cable (10) for direct voltage charging of an electrical energy store of a motor vehicle,with a cable jacket (13),with a cooling fluid-cooled first electrical conductor (11) for a first DC voltage phase and a cooling fluid-cooled second electrical conductor (12) for a second DC voltage phase,with an earth conductor (15) or equipotential bonding conductor and / or at least one control conductor (16),wherein the first and second electrical conductors (11, 12), the earth conductor (15) or equipotential bonding conductor and / or the at least one control conductor (16) are enclosed by the cable sheath (13),with a first end (10a), via which the motor vehicle charging cable (10) can be coupled to a charging socket of a motor vehicle via a charging plug (25) attached to the first end,with a second end (10b), via which the motor vehicle charging cable (10) can be coupled to a charging column (1),wherein at those positions of the motor vehicle charging cable (10) at which the same is fixed in brackets, i.e. at least in the area of the first end (10a) and the second end (10b), between the cable jacket (13) and the electrical conductors (11, 12 ), the earth conductor (15) or equipotential bonding conductor and / or the at least one control conductor (16) molded elements (18) are arranged, which the electrical conductors (11, 12), the earth conductor (15) or equipotential bonding conductor and / or the at least one control conductor (16) guide, clamp and restrict relative movement between them,wherein between those positions of the motor vehicle charging cable (10) at which it is fixed in brackets, the cable sheath (13) a relative movement between the electrical conductors (11, 12), the earth conductor (15) or equipotential bonding conductor and / or the at least one control conductor ( 16) restricts.
    [2]
    2. Motor vehicle charging cable according to claim 1, characterized in that the respective shaped element (18) has a cylindrical base body (28) which has slots (31) or grooves (30) running in the longitudinal direction on its lateral surface (29), via which the electrical Conductors (11, 12), the earth conductor (15) or equipotential bonding conductor and / or the at least one control conductor (16) can be inserted into recesses in the respective molded element (18).
    [3]
    3. Motor vehicle charging cable according to claim 1 or 2, characterized in that the respective shaped element (18) consists of a polyamide material.
    [4]
    4. Motor vehicle charging cable according to one of claims 1 to 3, characterized in that at those positions of the motor vehicle charging cable at which the shaped elements (18) are arranged, around the cable sheath (13) clamping elements (26, 32) are arranged, which the cable sheath (13) press against the shaped elements (18) and thus advantageously enable the conductors 11, 12, 15, 16 of the motor vehicle charging cable 10 to be held or clamped.
    [5]
    5. Motor vehicle charging cable according to claim 4, characterized in that at each position of the motor vehicle charging cable to which the same is fixed in a holder, on the one hand in each case a shaped element (18) between the cable jacket (13) and the electrical conductors (11, 12), the Earth conductor (15) or equipotential bonding conductor and / or the at least one control conductor (16) is arranged, and on the other hand, a preferably two-part clamping element (26, 32) designed as a clamping ring or clamping sleeve is arranged around the cable sheath (13).
    [6]
    6. Motor vehicle charging cable according to claim 5, characterized in that parts (27) of the clamping ring (26) are screwed together.
    [7]
    7. Motor vehicle charging cable according to one of claims 1 to 6, characterized in that the same is also fixed in at least one position between the first end (10a) and the second end (10b) in a holder, in particular in a roof-like bracket (2) Charging column (1) adjacent to the second end and / or in a handle (25a, 34) adjacent to the first end.
    [8]
    8. Motor vehicle charging cable according to one of claims 1 to 7, characterized in thatthe first and second electrical conductors (11, 12) each have a conductor sheath (19) made of an outer sheath layer (19a) and an inner sheath layer (19b),wherein the first and second electrical conductors (11, 12) each have conductor cores (21) which run within the conductor sheath (19) and form a conductor core strand (20),wherein the first and second electrical conductors (11, 12) each have a first cooling fluid channel (22) for cooling the respective conductor strand (20) from the inside, which is enclosed by the respective conductor cores (21),wherein the first and second electrical conductors (11, 12) further each have a second cooling fluid channel (23) for cooling the respective conductor strand (20) from the outside, which surrounds the respective conductor cores (21), wherein between the conductor cores (21) of the conductor strand (20) of the respective electrical conductor (11, 12) and the inner cladding layer (19b) of the conductor sheath (19) of the respective electrical conductor (11, 12) tubular spacers (24) are positioned which subdivide the respective second cooling fluid channel (23) which are flowed through and around by cooling fluid and which rest against one another on the one hand and against the inner covering layer (19b) of the conductor covering (19) of the respective electrical conductor (11, 12) on the other.
    [9]
    9. Motor vehicle charging cable according to claim 8, characterized in thatthe first cooling fluid channel (22) of the respective electrical conductor (11, 12) can be flowed through by the cooling fluid in a first direction and the second cooling fluid channel (23) of the respective electrical conductor (11, 12) in an opposite, second direction,the first and the second cooling fluid channel (22, 23) of the respective electrical conductor (11, 12) define a conductor-specific cooling circuit of the respective electrical conductor (11, 12).
    [10]
    10. Motor vehicle charging cable according to claim 8 or 9, characterized in thatadjacent tubular spacers (24) lie loosely against one another,the tubular spacers (24) adhere to the inner covering layer (19b) of the conductor covering (19) of the respective electrical conductor (11, 12), the inner covering layer (19b) being coated with an adhesive on the side facing the spacers (24) is or is self-adhesive,the tubular spacers (24) bear against the conductor cores (21) and are twisted around the conductor cores (21).
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    同族专利:
    公开号 | 公开日
    CN111942193A|2020-11-17|
    US20200361327A1|2020-11-19|
    US11220188B2|2022-01-11|
    DE102019112843B3|2020-09-03|
    引用文献:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102019112843.9A|DE102019112843B3|2019-05-16|2019-05-16|Automotive charging cables|
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