• 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:
    A non-polluting brake assembly comprising a caliper support (2) a rotor disc (1), two movable pads (5,5B) clamped by a stirrup (), the pads comprising friction material capable of releasing particles resulting from abrasion, and a suction device (3) arranged at least partly near the caliper support, the suction device comprising in the vicinity of each pad a suction zone delimited by a deflector (4), and in which a vacuum is created, characterized in that the baffle comprises at least a portion located in the outer radial position relative to the pad.
    公开号:FR3046644A1
    申请号:FR1650264
    申请日:2016-01-13
    公开日:2017-07-14
    发明作者:Christophe Rocca-Serra
    申请人:Tallano Technologie SAS；
    IPC主号:
    专利说明:

    Particle trap brake assembly with deflector
    Technical area
    The present invention relates to non-polluting braking systems, intended in particular for use on road or rail vehicles. The invention relates in particular to braking systems capable of suctioning particles and dust resulting from abrasion, emitted by friction braking.
    It is known that these particles dispersed in the environment are harmful to the health of individuals. The progress of electric motorization for motor vehicles has reinforced the need to treat particles and dusts resulting from the abrasion of friction brake systems.
    Previous Art
    The document WO2014072234 discloses a simple and entirely autonomous device, based on the principle of suction as close as possible to the wafer / disk interface.
    However, it turns out that the capture rate is not optimum, because the latter depends on the aerological conditions and in particular the relative wind prevailing in the immediate vicinity of the brake pad.
    It has therefore emerged a need to improve the solutions for capturing the particles and dusts resulting from braking in order to eliminate all or some of the aforementioned drawbacks. SUMMARY OF THE INVENTION For this purpose, according to the present invention, there is provided a non-polluting brake assembly, comprising: - a stirrup support, - a rotor disc, rotating about an axis X, with respect to which a radial direction R is defined, - two movable pads intended to bear on said disk to brake it under a clamping force provided by a stirrup, the pads comprising friction material capable of releasing particles resulting from abrasion, and a suction device arranged at least partly near and attached to the stirrup support, the suction device comprising in the vicinity of each pad a suction zone delimited by a deflector, and in which a depression is created, characterized in that the deflector comprises at least a first extension located in the outer radial position relative to the pad.
    With these provisions, it is possible to increase the rate of capture of particles in various aerological conditions around the brake assembly.
    Indeed, more specifically, it is noted that the suction zone ZA is located mainly on the front of the pad with respect to the normal rotation direction FW of the disc, but according to the changing local aerology, the particles do not all come out according to a tangential direction and advantageously the first extension can capture particles that tend to deviate to the outside.
    In various embodiments of the invention, one or more of the following provisions may also be used: the deflector comprises at least a second extension situated in an inward radial position with respect to the skid; . This further optimizes the suction zone ZA, especially for particles that tend to deviate inwards; the suction device can be arranged entirely near and attached to the stirrup support, and the suction device then further comprises: at least one reservoir for collecting the particles; suction zones to the reservoir, - a turbine driven by drive means and configured to create a depression in the reservoir; whereby mechanical integration and autonomy are improved; the drive means may be mechanical and then comprise a roller rubbing on the disc; we have complete autonomy. the drive means may be electric and comprise an electric motor controlled by a control unit. This gives flexibility and flexibility for the control. the deflector has a border closest to the disk, which is advantageously at a distance (H) from the disk surface of between 1 and 2 mm; in one embodiment, the baffle may be integrally molded from the stirrup support; this simplifies the architecture of the solution and reduces the cost; note: this does not exclude a resumption of machining; - In this case, the pipe may be formed in part by a through hole in the stirrup support; the compactness of the solution is further improved; - The baffle is a separate piece made of cast aluminum type; this material withstands the high temperatures that can prevail at this place; - In one embodiment, the free edge of the baffle wife continuously the front end of the lining of the wafer and at least partly the inner radial portion and the outer radial portion, the free edge of the deflector being at a distance (K) of the packing in the tangential direction between 0.5 mm and 1.5 mm; this provides a necessary and sufficient clearance to take into account the statistical dispersions of manufacture and the quality of the capture.
    BRIEF DESCRIPTION OF THE DRAWINGS Other aspects, objects and advantages of the invention will appear on reading the following description of two of its embodiments of the invention, given by way of non-limiting examples. The invention will also be better understood with reference to the accompanying drawings, in which: FIG. 1A is a general view of a brake assembly according to a first embodiment of the invention, FIG. 1B is a general view, similar to FIG. FIG. 2 is a cross-sectional view, FIG. 3 illustrates an explanatory diagram of the trajectories of the particles, FIG. 4A. FIG. 4B is an exploded view of the brake assembly according to the second embodiment, FIG. 5 illustrates the capture zone, Figure 6 illustrates the interface area between the wafer and the baffle.
    Detailed description of the invention
    In the different figures, the same references designate identical or similar elements. It should be noted that the drawings are not necessarily to scale, some dimensions have been exaggerated for clarity of presentation, including certain games or distances guard.
    Fig. 1A shows a brake assembly 10 according to a first embodiment of the invention which relates to a disc brake configuration. Such a disk brake configuration is very common in automobiles, commercial vehicles, heavy goods vehicles, buses as well as in railway rolling stock, and also on two-wheelers. In this configuration, the braking action takes place on a rotor called 'disc' integral with the rim of the wheel but distinct from it.
    The particles emitted by braking systems are becoming more numerous due to the increase in vehicle traffic, particularly in urban areas. Medical studies confirm the harmfulness of these particles for the respiratory system of individuals and for health in general. It therefore appears important to greatly reduce the emission of these particles into the environment, to which the present invention is attached. Even if efforts are made to use frictionless braking systems, such as regenerative electric braking or eddy current braking, where possible, it turns out that one can not do without friction braking, because they are effective at all speeds, and they keep the vehicle stationary, and provide an adequate and effective solution in case of need for emergency braking. In the case of a friction brake, it is based on a rotor 2 rotating about an axis of wheel X on which two pads act by friction to reduce its speed by converting the kinetic energy into heat. The rotation around the axis X makes it possible to define a tangential (or circumferential) direction T and a radial direction R (locally orthogonal to the axis and to the tangential direction T).
    We also define a normal direction of rotation FW which corresponds to the forward movement. Note that for railway materials that flow in both directions, the suction device that will be described later can be doubled to treat the opposite direction to FW.
    As illustrated in FIGS. 1A to 4B, and in common with the different embodiments, the brake assembly 10 comprises a rotor 2 in the form of a disc of constant thickness integral with the wheel to be braked (or wheels of the axle with braking), and two pads 5.5B (also called 'brake pads') intended to bear on said rotor to brake with the action of a brake caliper 9.
    The disc comprises a hub, a first annular lateral face 21 perpendicular to the X axis, and a second annular face 22 parallel to the first; the radially outer edges of the lateral faces are connected by a border called disc slice 23. The brake caliper 9 is attached by a floating assembly to a stirrup support 1. This floating assembly according to X, for example with rods 95 ( also called 'balusters'), is well known and therefore not detailed.
    The caliper support 1 comprises a yoke 11, intended to be rigidly attached to the suspension arm or to the knuckle, and the U-shaped saddles (also sometimes called "riders") straddling the disk: more precisely a first bridge 12 on the front side, a second bridge 13 on the rear side, and a connecting arc 19 which connects the jumpers opposite the yoke.
    For the case of a road vehicle, the yoke 11 is arranged on the inside of the vehicle relative to the disk 2, and the connecting arc 19 is arranged on the outside of the vehicle relative to the disk 2. The yoke 11 is intended to be fixed to the suspension arm or to the knuckle, through holes 17 which receive fastening screws.
    The pads 5 are movably mounted along X relative to the stirrup support 1 but they are substantially immobilized in the circumferential direction T and in the radial direction R through complementarities of shapes which will be detailed later.
    The pads 5 are housed inside the brake caliper 9, and they frame the disk 2, with their lining located opposite the first disk face 21 and the second disk face 22 respectively. .
    As known per se, the two pads 5, 5B can be urged towards each other to take the rotor 2 sandwiched under the effect of a piston 91, thus producing a force PF directed parallel to the axial direction of wheel X. The stirrup has a strong general U and comprises a body 90 and fingers 92 arranged opposite the piston 91.
    Each pad 5 comprises a metal base 50 and a bearing body 51 comprising friction material capable of releasing particles 8 resulting from abrasion due to friction. The support body is also called "trim" 51 and the material sometimes commonly called "ferodo". The rubbing face is noted 52, it moves progressively as and when the wear of the lining 51 towards the sole 50.
    The sole 50 comprises a tenon 56 at each end, each stud being complementarily received in a housing 14 of the stirrup support 1. This provides an immobilization in the tangential direction T and radial R and the housing allows a movement of the tenon in the axial direction X.
    According to the invention, the brake assembly 10 comprises a suction device 3 capable of capturing the particles and dust 8 constituting the residues of the abrasion resulting from the braking.
    The suction device 3 has suitable dimensions which facilitate its integration into the immediate environment of the stirrup support 1.
    The suction device 3 more specifically comprises: a suction zone ZA with a deflector 4, which makes it possible to define a capture zone as close as possible to the lining of the wafer; a collection tank 38 for collecting the particles; friction material 8, - a pipe 31,32 leading from the suction zone ZA to the collecting tank 38, namely a first pipe 31 for one side and a second pipe 32 for the other side, possibly including a common trunk that leads to the reservoir - a turbine 36, driven by drive means which will be seen further, and which can thus create a vacuum in the tank.
    There is a filter in the tank, the filter lets in the air creating the depression but not the particles 8.
    A depression is created in the tank 38 by the rotation of the turbine. This depression also reigns in the pipe, in the suction mouth 47 and in the capture zone ZA delimited by the deflector 4. The depression is sufficient to attract the particles from the capture zone ZA to the reservoir 38.
    In other words, the deflector 4 delimits, with the disk 2 and the lining 51, an almost closed space called the suction zone ZA.
    Advantageously, and contrary to certain solutions of the prior art, no blowing is used which would lead to dispersing the particles.
    According to an advantageous aspect, the deflector comprises a first extension 41 located in radial position outside with respect to the pad.
    It is also possible that the deflector comprises a second extension 42 located in the inner radial position relative to the pad.
    As illustrated in FIG. 3, according to the prevailing aerology at a time t, the ejection of the particles does not necessarily occur strictly in a tangential ejection AND configuration. In some fairly frequent cases, EF centrifugal ejection is observed, and in other cases rarer one can even see an EP centripetal ejection. Of course, one can have a dispersion of the important trajectories with at the same moment ejections centrifugal and centripetal.
    It can be seen that the coverage of the extensions 41, 42, situated respectively in the outer and inner radial position, is rather large in FIG. 3, but less important in FIG.
    In practice, the lining has an outer edge 58 in a circular arc centered on X, this outer edge having a front end 59, and the inventor has determined that the outer extension 41 must extend at least up to this front end. 59 (cf Figure 6). Preferably, the outer extension 41 covers the front end 59 of the outer edge 58 in an arc.
    As illustrated in Figure 2, the deflector 4 has a border closest to the disc which is at a distance H relative to the disk surface of between 1 and 2 mm. In other words, H is the height of the deflector 4 with respect to the surface of the disc. Note that in Figure 2, the stirrup carrier 1 is not shown.
    The free edge 45 of the baffle continuously follows the front end 54 of the lining of the wafer and at least partly the inner radial portion and the outer radial portion. According to an advantageous embodiment, the free edge of the deflector is at a distance K of the lining between 0.5 mm and 1.5 mm.
    The cover of the baffle is just needed, the impact on the cooling of the wafer and other components is minimal.
    Note that the disk 2 also be subject to wear and release metal particles that are also captured by the suction device.
    It is noted that so far the description is common to the different modes.
    According to the first embodiment shown particularly in Figures IA and 4A, the drive means are based on a mechanical solution already mentioned in WO2014072234. There is a roller 39 bearing on the edge 23 of the rotor, the roller being driven by friction. A spring assembly allows to dose the pressure of support. A multiplier / reducer gear may be provided so as to obtain a coefficient of proportionality between the speed of the disk and the speed of the turbine which satisfies the desired depression.
    In the example illustrated, the deflector 4 is a separate part made of aluminum cast type material.
    According to a second embodiment shown in FIGS. 1B and 4B, an electric motor 35 is used as drive means for the turbine. This electric motor is controlled by a control unit (not shown) comprising software configured to activate the engine. electric, for example depending on the braking action of the driver on the brake pedal.
    According to a variant not shown, it is used as a vacuum generator element in a central unit connected by pipes to each of the brake assemblies.
    In the example shown, the baffle 4 is a separate part made of cast aluminum type material.
    In the two illustrated modes, the deflectors 4,4B are mounted rigidly relative to the stirrup support 1. As the position of the stirrup support is very accurate with respect to the disc, the position of the deflectors 4,4B is well controlled by relative to the disc, regardless of the degree of wear of the pad (of the pad); it is thus possible to obtain a dimension H and a dimension K (see above) well controlled, regardless of the residual thickness of the liner 51 of the shoe 5.
    In the two illustrated modes, the deflectors 4,4B are formed as separate parts made of cast aluminum type material.
    According to a variant not shown, the deflector is integrally molded from the caliper support 1. In this case as in the case shown in Figure 4B, it can be provided that the pipe is formed in part by a hole 18 through the stirrup support.
    Note that, according to a variant not shown, the stirrup can be mounted fixedly on the stirrup carrier.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    A non-polluting brake assembly, comprising: - a stirrup support (1) - a rotor disc (2), rotating about an axis (X), with respect to which a radial direction (R) is defined, - two movable pads (5,5B) intended to bear on said disc to brake it under a clamping force (PF) provided by a stirrup (9), the pads comprising friction material capable of releasing particles (8) resulting from the abrasion, - and a suction device (3) arranged at least partly near the stirrup support, the suction device comprising in the vicinity of each pad a suction zone (ZA) delimited by a deflector (4), and in which a vacuum is created, characterized in that the deflector comprises at least a first extension (41) located in radial position outside relative to the pad.
    [2" id="c-fr-0002]
    2. Brake assembly according to claim 1, wherein the baffle comprises at least a second extension (42) located radially inward with respect to the pad.
    [3" id="c-fr-0003]
    3. Brake assembly according to one of claims 1-2, wherein the suction device is arranged entirely near and attached to the caliper support, and wherein the suction device further comprises at least one reservoir (38) for collecting the particles, a pipe (31, 32) leading from the suction zones to the reservoir, a turbine (36) driven by drive means and configured to create a depression in the tank.
    [4" id="c-fr-0004]
    4. Brake assembly according to claim 3, wherein the drive means are mechanical and comprise a roller (39) rubbing on the disc.
    [5" id="c-fr-0005]
    5. Brake assembly according to claim 3, wherein the drive means are electrical and comprise an electric motor (35) controlled by a control unit.
    [6" id="c-fr-0006]
    6. Brake assembly according to one of claims 1-5, wherein the baffle has a border closest to the disc which is at a distance (H) from the disc surface of between 1 and 2 mm.
    [7" id="c-fr-0007]
    7. Brake assembly according to one of claims 1-6, wherein the baffle is integrally molded from the caliper support.
    [8" id="c-fr-0008]
    The brake assembly of claim 7, wherein the conduit is formed in part by a through hole in the caliper bracket.
    [9" id="c-fr-0009]
    9. Brake assembly according to one of claims 1-6, wherein the baffle is a separate part made of aluminum cast type material.
    [10" id="c-fr-0010]
    10. Brake assembly according to one of claims 1-9, wherein the free edge of the deflector (45) continuously marries the front end (54) of the pad of the pad and at least partly the inner radial portion and the outer radial portion, the free edge of the deflector being at a distance (K) of the liner in the tangential direction between 0.5 mm and 1.5 mm.
    类似技术:
    公开号 | 公开日 | 专利标题
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    同族专利:
    公开号 | 公开日
    DE102017200406A1|2017-07-13|
    US20170198772A1|2017-07-13|
    CA2954085A1|2017-07-13|
    JP2017125610A|2017-07-20|
    RU2017101014A|2018-07-16|
    FR3046644B1|2019-04-12|
    KR20170085015A|2017-07-21|
    CN107035791A|2017-08-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20070000740A1|2005-04-11|2007-01-04|Simon Raab|Brake pad dust collector or diverter|
    DE102006051972A1|2006-11-03|2008-05-08|Konstantinos Tsiberidis|Brake dust collector|
    DE102010053879A1|2010-12-09|2012-06-14|Kt Projektentwicklungs Gmbh|Collection device for brake dust|
    GB2497426A|2011-12-06|2013-06-12|Trevor Michael Mennie|Brake pad having a perimeter void for dust removal|FR3072144A1|2017-10-11|2019-04-12|Psa Automobiles Sa|VEHICLE BRAKE SYSTEM WITH AIR DEFLECTOR AND VEHICLE USING THE SAME|
    WO2019086814A1|2017-11-06|2019-05-09|Sogefi Filtration|Filtration device and use of said device for separating and collecting brake dust|
    WO2020183092A2|2019-03-11|2020-09-17|Sogefi Filtration|Separating device and use of the device for separating and collecting brake dust|DE4240873C2|1992-12-04|2001-03-22|Continental Teves Ag & Co Ohg|Brake dust retention device for motor vehicles|
    AUPQ547000A0|2000-02-07|2000-03-02|Pbr Australia Pty Ltd|Disc brake assembly|
    FR2815099B1|2000-10-10|2003-06-27|Peugeot Citroen Automobiles Sa|DUST-FREE DISC BRAKE|
    JP2005256959A|2004-03-11|2005-09-22|Toyota Motor Corp|Piston advancing limit alarming device of disc brake device|
    JP4125766B2|2006-10-04|2008-07-30|株式会社アンレット|Mist and dust collector|
    US8926738B2|2010-09-20|2015-01-06|Idlos B.V.|Brake pad assembly and method for collecting brake particles|
    FR2997743B1|2012-11-08|2016-04-29|Tallano Tech|PARTICLE CAPTRATING BRAKE ASSEMBLY|JP2021524561A|2018-05-22|2021-09-13|マン ウント フンメル ゲゼルシャフト ミット ベシュレンクテル ハフツング|Vehicles with brake dust particle filters, lighting housing parts for brake dust particle filters, and brake dust particle filters|
    FR3088393B1|2018-11-08|2020-12-11|Tallano Tech|CONTROL ANTICIPATED BRAKE PARTICLE SUCTION SYSTEM|
    DE102019111004A1|2019-04-29|2020-10-29|Mann+Hummel Gmbh|Brake disk assembly with a brake dust particle filter|
    DE102019213933A1|2019-09-12|2021-03-18|Continental Teves Ag & Co. Ohg|System for collecting abrasion particles from a friction brake|
    KR102311867B1|2019-12-19|2021-10-12|한국세라믹기술원|Dust collecting filter for capturing dust generated in break apparatus of transportation means|
    DE102020118880A1|2020-07-16|2022-01-20|Mann+Hummel Gmbh|Caliper bracket, disc brake assembly, use of a caliper bracket and method of directing air|
    法律状态:
    2016-11-29| PLFP| Fee payment|Year of fee payment: 2 |
    2017-07-14| PLSC| Publication of the preliminary search report|Effective date: 20170714 |
    2017-11-28| PLFP| Fee payment|Year of fee payment: 3 |
    2018-11-29| PLFP| Fee payment|Year of fee payment: 4 |
    2020-01-27| PLFP| Fee payment|Year of fee payment: 5 |
    2021-01-25| PLFP| Fee payment|Year of fee payment: 6 |
    2021-12-28| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1650264A|FR3046644B1|2016-01-13|2016-01-13|PARTICLE CAPTRATING BRAKE ASSEMBLY WITH DEFLECTOR|
    FR1650264|2016-01-13|FR1650264A| FR3046644B1|2016-01-13|2016-01-13|PARTICLE CAPTRATING BRAKE ASSEMBLY WITH DEFLECTOR|
    CA2954085A| CA2954085A1|2016-01-13|2017-01-06|Brake assembly with particle capture and deflector|
    RU2017101014A| RU2017101014A|2016-01-13|2017-01-12|SOLID PARTICLES BRAKE UNIT WITH DEFLECTOR|
    DE102017200406.1A| DE102017200406A1|2016-01-13|2017-01-12|Particle trapping brake assembly with deflection unit|
    JP2017003152A| JP2017125610A|2016-01-13|2017-01-12|Particle trapping brake assembly with deflector|
    CN201710024665.XA| CN107035791A|2016-01-13|2017-01-13|Granule capturing formula brake gear with guider|
    US15/405,855| US20170198772A1|2016-01-13|2017-01-13|Particle Trapping Brake Assembly With Deflector|
    KR1020170006107A| KR20170085015A|2016-01-13|2017-01-13|Particle trapping brake assembly with deflector|
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