• 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 present invention relates to a portable device for unwinding an electric cable comprising a connection element at each of its ends, in particular a charging cable for an electric or hybrid vehicle. The device comprises a support in which is hollowed a groove forming a flat spiral, the groove being adapted to accommodate at least partially the cable. It also includes a lid enclosing, together with the support, the portion of the cable received in the furrow. The lid has an opening in which is able to move a cursor in a direction radial to the spiral. The slider comprises means for guiding the cable through the opening. The support, the cover and the slider are arranged in such a way that the rotation of the cover and the slider with respect to the support around the axis of the spiral results in: in a direction of rotation, the displacement of the slider in the opposite direction to the axis of the spiral, said displacement causing the insertion, by the guide means through the opening, of the cable in the groove under the cover; in the other direction of rotation, the displacement of the slider in the direction of the axis of the spiral, said displacement causing the extraction, by the guide means through the opening, of the cable out of the groove and the above the lid. Application: electric or hybrid vehicles
    公开号:FR3052925A1
    申请号:FR1655562
    申请日:2016-06-15
    公开日:2017-12-22
    发明作者:Julien Buffetaud
    申请人:Renault SAS；
    IPC主号:
    专利说明:

    Portable device for feeding an electrical cable, in particular a charging cable for an electric or hybrid vehicle
    The present invention relates to a portable device for unwinding an electric cable, in particular a charging cable for an electric or hybrid vehicle.
    In the current context of consensus around global warming, the reduction of carbon dioxide (CO2) emissions is a major challenge faced by car manufacturers, the standards being ever more demanding in this area.
    In addition to the steady improvement in efficiency of conventional combustion engines, which is accompanied by a reduction in CO2 emissions, electric vehicles ("EV") and thermal hybrid vehicles. Electric ("HEV") is now considered the most promising solution for reducing CO2 emissions.
    Different technologies for storing electrical energy have been tested in recent years to meet the needs of EVs. It now appears that lithium-ion cell batteries (Li-ion) are those likely to provide the best compromise between the power density, which promotes the performance in terms of acceleration in particular, and the energy density, which promotes autonomy. However, the use of this Li-ion technology to form traction batteries for EV is not without posing many difficulties, especially if one considers the voltage levels required at the terminals of the battery, the order of 400 volts (V), or the necessary levels of charging power, of the order of 2 to 3 kilowatt-hours in slow charge for several hours, up to several tens of kilowatt-hours in rapid charge for a few tens minutes. At such load power levels, the charging cable itself is subjected to high stresses.
    The best-known solution, which is also the simplest, is to provide a "steering wheel" load cable of large section adapted to the maximum power load envisaged, which is transported in the trunk of the vehicle. The main drawback of this solution is that during the charging phases, the cable drags on the ground and gets dirty. So, the user folds it cleanly (which can be complicated considering its important section) before storing it in his trunk and he gets his hands dirty, or he puts it loose in the trunk and he there is a significant risk that he must unravel it when he needs it again. Soiling the hands seems inevitable, and this is a disadvantage that the present invention proposes to solve.
    To avoid this drawback, it is known from the state of the art, in particular patent application US2015 / 0008878A1, a device for storing a charging cable comprising a reel with a crank for unwinding and winding the cable. , as well as a handle for carrying the device. It also includes a load control box, integrated in the center of the reel, which allows to control a slow charge on standard plug. A major disadvantage of this solution is the risk of overheating. Indeed, at high power levels for fast charging, heating problems are not limited to the battery: all the conductive elements involved give off a large amount of heat by joule effect and it is necessary to take into account this phenomenon. when designing the entire electrical architecture of the vehicle. Thus, not only the load cable connecting the vehicle to the charging terminal must be selected of sufficiently large section, but it must also be arranged in a manner to remove heat in a controlled manner. This is obviously not the case of a winding solution as in US2015 / 0008878A1, where the cable is not only tightly wound, but in addition it is enclosed, which prevents convection cooling phenomenon. The invention particularly aims to overcome the aforementioned drawbacks, especially those related to soiling and the risk of overheating. For this purpose, the invention relates to a portable device for unwinding an electrical cable comprising a connection element at each of its ends. The device comprises a support in which is hollowed a groove forming a flat spiral, the groove being adapted to accommodate at least partially the cable. It also includes a lid enclosing, together with the support, the portion of the cable received in the furrow. The lid has an opening in which a slider can move in a radial direction to the spiral. The slider comprises means for guiding the cable through the opening. The support, the cover and the slider are arranged in such a way that the rotation of the cover and the slider relative to the support around the axis of the spiral causes, in one direction of rotation, the movement of the slider in the direction opposite to the axis of the spiral, said displacement causing the insertion, by the guide means through the opening, of the cable in the groove under the cover. They are also arranged in such a way that the rotation of the cover and the slider with respect to the support around the axis of the spiral causes, in the other direction of rotation, the displacement of the slider in the direction of the axis. of the spiral, said displacement causing the extraction, by the guide means through the opening, of the cable out of the groove and above the cover.
    Advantageously, the opening may comprise two edges parallel to the radial direction to the spiral and the slider may comprise two slides capable of sliding along the two edges respectively.
    Advantageously, the device may comprise a handle integral with the support and the slider may comprise a gripping nipple, so that the cover and the slider are adapted to be rotated by means of the nipple, while simultaneously retaining the support by means of the nipple. intermediate handle.
    For example, the means for guiding the cable through the opening may include a conduit of substantially disc section.
    For example, since the support may have at least two faces, one of which bears the groove, an orifice may be pierced in the support near the end of the groove located closest to the center of the spiral, the cable being able to pass through the groove. through the orifice from one side to the other of the support.
    For example, the support may comprise, on its face not carrying the groove, at least one clipping element to block the cable (13).
    Advantageously, the support may comprise a cylindrical pivot having as its axis the axis of the spiral, and the lid may comprise a disc opening also having as its axis the axis of the spiral, the pivot being able to be fitted into the disc opening, of such that the cover and the slider are able to be rotated relative to the support about the axis of the spiral.
    For example, the support and the cover may have a substantially disc shape. The support (12) and the cover (17) can then have substantially the same diameter.
    The present invention also relates to such a portable device for unwinding an electric cable to charge an electric or hybrid vehicle.
    In addition to limiting soiling and facilitating the cooling of the cable, the device according to the invention has the main advantage its ergonomics in terms of weight and bulk. Other characteristics and advantages of the invention will become apparent with the aid of the description which follows, with reference to appended drawings 1, 2, 3 and 5, which illustrate schematic overall views, and the appended drawings 4a, 4b and 4c, which illustrate schematic sectional views, of a same advantageous embodiment of the invention. The identical elements illustrated in these figures share the same references. However, for the sake of clarity, not all references have been reported in all figures.
    The figures illustrate a same device 1 according to the invention for recharging an electric or hybrid vehicle. Figures 1 and 2 illustrate, in two opposite viewpoints, the device 1 in a storage configuration. Figure 5 illustrates device 1 in a usage configuration. As is well illustrated in FIG. 3, which is an exploded non-functional view of the device 1, the latter comprises a handle 11 fixed to a support 12 for a cable 13. In the present embodiment, the support 12 has a flat shape substantially disc. As is well illustrated in FIG. 4a, the support 12 has on one of its faces (hereinafter referred to as the "front face") a groove 121 in the form of an Archimedean spiral (called a "flat spiral" thereafter). , the groove 121 can accommodate the cable 13 in a storage configuration. An orifice 124 is pierced through the support 12 at the end of the groove 121 located closest to the center of the spiral, the cable 13 passing through the support 12 through this orifice 124. As illustrated in FIG. 2, the support 12 further comprises on its other face (called "rear face" thereafter) clipping fingers 122 disposed near its entire periphery, the clipping fingers 122 accommodating the cable 13 so that it can not slide there . The device 1 also comprises a cover 17 of substantially disc shape for closing the disc support 12 on its front face carrying the groove 121, so that the support 12 and cover 17 share a same axis of symmetry A. It should be noted that the axis A is also the axis of the flat spiral formed by the groove 121. In the present embodiment, the cover 17 is made of a translucent material leaving visible the portion of the cable 13 inserted into the groove 121. In In the present embodiment, the cover 17 comprises at its center a disc opening 172, which is complementary to a cylindrical pivot 123 disposed in the center of the support 12, the pivot 123 being fitted into the opening 172 so that the cover 17 is adapted to pivot about the pivot 123. The cover 17 further comprises an opening 171 of rectangular shape, two opposite edges 1711 and 1712 are oriented substantially in the same vect R 17 radial and disc cover 17 and the flat spiral formed by the groove 121. These two edges 1711 and 1712 are capable of guiding slides 161 and 162 of a slider 16. This slider 16 also comprises a spherical gripping nipple 164. At both ends of the cable 13 are provided a plug 14 (provided with a protective cover in the present example) and a plug 15 for connection to an electric vehicle and a charging terminal respectively.
    FIG. 4a shows, in the storage configuration, the cable 13 hosted over substantially its entire length in the groove 121 in the form of a spiral formed in the support 12. The groove 121 has a section of semi-disc shape of diameter substantially identical to the outer diameter of the cable 13, so that the cable 13 is received in the groove 121 on half of its section. As best illustrated by the cross-sectional views of FIGS. 4a, 4b and 4c, the cable 13 passes through the slider 16 via a pipe 163 of substantially disc-shaped cross-section specially arranged for this purpose through the slider 16. The diameter of the pipe 163 must allow the cable 13 to slide without restraint.
    Thus, by taking the handle 11 by hand, it is sufficient to drive the pin 164 of the slider 16 in a rotational movement about the axis A of the spiral, by pinching the pin 164 between the thumb and the index finger. the other hand.
    In a direction of rotation, in order to connect the vehicle to a charging terminal (so-called "charging" configuration illustrated in FIG. 5), the slider 16 forces the extraction of the cable 13 out of the groove 121 along its entire length, this under the combined action of the cable 13 which slides in the conduit 163 and slides 161 and 162 which slide along the edges 1711 and 1712 respectively, approaching the axis A of the spiral. By adapting the length of cable 13 extracted from the groove 121, it is easy to limit or even prevent the cable 13 from dragging on the ground, and thus avoid getting dirty hands. In any case, even if it hangs on the ground, it will not be necessary to touch the cable 13 when storing it after charging, it will be sufficient to actuate the slider 16 in the other direction of rotation, as explained below.
    In the other direction of rotation, in order to store the device 1 in the trunk of the vehicle for example (configuration called "storage" illustrated in Figure 1), the slider 16 forces the insertion of the cable 13 in the groove 121 along its entire length, this always under the combined action of the cable 13 which slides in the conduit 163 and slides 161 and 162 which slide along the edges 1711 and 1712 respectively, but this time away from the axis A of the spiral. In this storage configuration, the device 1 according to the invention can very easily be placed in the trunk of a vehicle. The above exemplary embodiment is given by way of illustration, the invention being applicable to any electrical device requiring to be periodically connected to a power outlet.
    The device according to the invention also has the advantage of being very light and simple design, so reliable and inexpensive. In particular, all its elements can be made of plastic materials (except the conductive elements of the cable, of course). Advantageously, the device according to the invention allows unwinding the cable to the desired length, and thus prevent the cable from lying on the ground between the vehicle and the charging socket. It is also ergonomic thanks to its handle, in the sense that its use does not require to get dirty hands and where it offers a limited space: it can be stored easily in the trunk of a vehicle without penalizing the volume useful for them. luggage. Finally, the cable is relatively well ventilated throughout its length and can thus cool by simple natural convection. In addition, the support and the lid can be easily perforated, in order to optimize the cooling by natural convection of the cable.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    1. Device (1) portable unwinding of an electric cable (13) having a connecting member (14, 15) at each of its ends, characterized in that it comprises: a support (12) in which is dug a groove (121) forming a flat spiral, the groove being able to accommodate at least partially the cable, and; a cover (17) enclosing, in collaboration with the support, the portion of the cable accommodated in the groove, the cover having an opening (171) in which is able to move a slider (16) in a radial direction (R); the spiral, the slider having means for guiding the cable through the opening; the support, the cover and the slider being arranged in such a way that the rotation of the cover and the slider with respect to the support around the axis (A) of the spiral causes: in a direction of rotation, the movement of the slider in the direction opposite to the axis of the spiral, said displacement causing insertion, by the guide means through the opening, of the cable into the groove under the cover; in the other direction of rotation, the displacement of the slider in the direction of the axis of the spiral, said displacement causing the extraction, by the guide means through the opening, of the cable out of the groove and top of the lid.
    [2" id="c-fr-0002]
    2. Device according to claim 1, characterized in that: the opening (171) has two edges (1711, 1712) parallel to the direction (R) radial to the spiral; the slider (16) has two sliders (161, 162) slidable along said two edges respectively.
    [3" id="c-fr-0003]
    3. Device according to claim 1, characterized in that it comprises a handle (11) integral with the support (12); the slider (16) has a grip pin (164); so that the lid and the slider are adapted to be rotated through the pin, simultaneously retaining the support via the handle.
    [4" id="c-fr-0004]
    4. Device according to claim 1, characterized in that the guide means of the cable (13) through the opening (171) include a conduit (163) of substantially disc section.
    [5" id="c-fr-0005]
    5. Device according to claim 1, characterized in that, the support (12) having at least two faces, one of which carries the groove (121), an orifice (124) is drilled in the support near the end. the groove located closest to the center of the spiral, the cable (13) passing through the orifice from one side to the other of the support.
    [6" id="c-fr-0006]
    6. Device according to claim 5, characterized in that the support (12) comprises, on its side not bearing the groove (121), at least one clipping member (122) for locking the cable (13).
    [7" id="c-fr-0007]
    7. Device according to claim 1, characterized in that: the support (12) comprises a cylindrical pivot (123) having axis axis (A) of the spiral, and; the lid (17) has a disc opening (172) also having the axis of the spiral axis; the pivot being fitted into the disc opening, so that the cover and the slider (16) are adapted to be rotated relative to the support around the axis of the spiral.
    [8" id="c-fr-0008]
    8. Device according to claim 1, characterized in that the support (12) and the cover (17) have a substantially disc shape.
    [9" id="c-fr-0009]
    9. Device according to claim 8, characterized in that the support (12) and the cover (17) have substantially the same diameter.
    [10" id="c-fr-0010]
    10. Device (1) portable unwinding an electric cable (13) for charging an electric or hybrid vehicle according to any one of the preceding claims.
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    引用文献:
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    US9346653B1|2014-11-20|2016-05-24|Shenzhen Mindray Bio-Medical Electronics Co., Ltd.|Cord retractor|
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    法律状态:
    2017-06-21| PLFP| Fee payment|Year of fee payment: 2 |
    2017-12-22| PLSC| Search report ready|Effective date: 20171222 |
    2018-06-26| PLFP| Fee payment|Year of fee payment: 3 |
    2020-06-19| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1655562A|FR3052925B1|2016-06-15|2016-06-15|PORTABLE DEVICE FOR THE DEVIDING OF AN ELECTRIC CABLE, IN PARTICULAR A LOAD CABLE FOR AN ELECTRIC OR HYBRID VEHICLE|
    FR1655562|2016-06-15|FR1655562A| FR3052925B1|2016-06-15|2016-06-15|PORTABLE DEVICE FOR THE DEVIDING OF AN ELECTRIC CABLE, IN PARTICULAR A LOAD CABLE FOR AN ELECTRIC OR HYBRID VEHICLE|
    PCT/FR2017/051477| WO2017216454A1|2016-06-15|2017-06-09|Portable device for paying out an electric cable, particularly a charging cable for an electric or hybrid vehicle|
    EP17734793.7A| EP3472919B1|2016-06-15|2017-06-09|Portable device for paying out an electric cable, particularly a charging cable for an electric or hybrid vehicle|
    CN201780037196.3A| CN109476440B|2016-06-15|2017-06-09|Portable device for paying out an electric cable, in particular for charging an electric or hybrid vehicle|
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