• 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 protection device (1) for a heat exchanger (20), said heat exchanger (20) having at least one front face (20a) and one rear face (20b) in opposition to each other, and a first side face (20c) and a second side face (20d) in opposition to each other, said protection device (1) having a protective grid and being intended to be placed opposite the front face (20a) of said heat exchanger (20), the protective grid having on two opposite ends respectively a first (11) and a second (12) holding means (11) overlapping an associated lateral face (20b, 20c) of the heat exchanger (20) and engaging the rear face (20b) of said heat exchanger (20).
    公开号:FR3035956A1
    申请号:FR1554050
    申请日:2015-05-06
    公开日:2016-11-11
    发明作者:Daniel Pereira；Dinh-Luyen Nguyen；Patrice Michel
    申请人:Valeo Systemes Thermiques SAS；
    IPC主号:
    专利说明:

    [0001] 1 Protection device for heat exchangers. The invention relates to the field of protective devices for heat exchangers and more particularly for heat exchangers placed on the front face of a motor vehicle. In the automotive field, the heat exchangers placed on the front face may be the victim of the projection of debris or stones that may damage or even pierce the flat tubes inside which circulates a coolant. In order to protect these heat exchangers, it is known to place in front of them a protection device that can absorb these shocks. However, the fixing of these protective devices is generally achieved by clips that must be set up individually and manually, which is long and tedious and not compatible with rapid mass production. Thus, one of the aims of the invention is to at least partially overcome the drawbacks of the prior art and to propose an improved fixing protection device. The present invention therefore relates to a protection device for a heat exchanger, said heat exchanger comprising at least one front face and one rear face in opposition to each other, as well as a first lateral face and a second lateral face. in opposition to each other, said protection device comprising a protective grid and being intended to be placed facing the front face of said heat exchanger, the protective grid having on two opposite ends respectively first holding means and second holding means adapted to overlap an associated side face of the heat exchanger and to engage the rear face of said heat exchanger. The first and second holding means are thus in opposition and allow rapid attachment of the protective device on the front face of the heat exchanger without it being necessary to equip said heat exchanger with particular elements for the heat exchanger. fixation. According to one aspect of the invention, at least the first holding means or the second holding means comprise at least one attachment hook intended to engage with the rear face of the heat exchanger. According to another aspect of the invention, at least the first holding means or the second holding means comprise at least one fixing lug with elastic casing against the rear face of the heat exchanger. According to another aspect of the invention, the resiliently fitting fastening lug comprises a flexible blade rooted on the protective grid and having at its free end a beveled head intended to engage with the rear face of the protective grid. heat exchanger. According to another aspect of the invention, the elastic casing fastening lug comprises a flexible blade of general "J" shape comprising two branches of different lengths connected by an elbow, the longest branch taking root on the grid of protection and the free end of the shortest branch being intended to come into contact with the rear face of the heat exchanger. According to another aspect of the invention, the first holding means and the second holding means comprise both at least one fastening lug elastically fitted against the rear face of the heat exchanger. According to another aspect of the invention, the protective device comprises separating elements intended to be placed between the protective grid and the front face of the heat exchanger.
    [0002] According to another aspect of the invention, the protective device is made of plastic. The present invention also relates to a heat exchange assembly comprising a heat exchanger and a protection device as previously described and placed on said exchanger. Other characteristics and advantages of the invention will emerge more clearly on reading the following description, given by way of illustrative and nonlimiting example, and the appended drawings in which: FIG. 1 shows a schematic representation in perspective of A protective device mounted on a heat exchanger, Figure 2 shows a schematic perspective view of a protection device according to a first embodiment, Figure 3 shows a schematic perspective view of the protective device of the device. FIG. 1 shows a diagrammatic representation in perspective of a protection device according to a second embodiment, FIG. 5 shows a schematic representation in perspective of the device of FIG. protection of FIG. 3 when it is put in place on a heat exchanger, FIG. Schematic representation in perspective of a protection device according to a third embodiment. In the various figures, the identical elements bear the same reference numbers. The following achievements are examples. Although the description refers to one or more embodiments, this does not necessarily mean that each reference relates to the same embodiment, or that the features apply only to a single embodiment. Simple features of different embodiments may also be combined to provide other embodiments.
    [0003] FIGS. 1 to 6 show a protection device 1 for heat exchanger 20. The heat exchanger 20 comprises at least one front face 20a, a rear face 20b in opposition to each other and a first 20c and a second 20d side faces also in opposition to each other.
    [0004] By front face 20a is meant the face of the heat exchanger 20 through which a first coolant, for example an air flow, enters said heat exchanger 20 in order to pass through it. In a motor vehicle, this front face 20a is generally that directed towards the front of said motor vehicle and therefore the most subject to undergo projections and impacts. The rear face 20b is by analogy, the face of the heat exchanger 20 opposite the front face 20a and therefore the one by which the first coolant exits. By first side face 20c and second side face 20d is meant more particularly faces on opposite sides of the heat exchanger 20 and 25 which are located on planes preferably perpendicular to the planes of the front faces 20a and 20b rear. The heat exchanger 20 may for example be a tube exchanger comprising flat tubes, parallel to each other, in which circulates the second heat transfer fluid. Between these flat tubes are arranged fins connecting two successive flat tubes. The first heat transfer fluid circulates between said flat tubes through said fins. The protective device 1 is intended to be placed facing the front face 20a of the heat exchanger 20 and comprises a protective grid 30. The protective grid 30 is composed of longitudinal bars parallel to each other and also comprises spacers connecting said longitudinal bars. When the heat exchanger 20 comprises flat tubes, the longitudinal bars 3 preferably cover the sides of said flat tubes to protect them effectively. The protective device 1 is preferably made of plastic and is perforated so as to allow the circulation of the first fluid through the heat exchanger 20. As shown in FIGS. 1, 3 and 5, the protective grid 30 is here rectangular and comprises on two opposite ends, that is to say on two opposite sides, first holding means 11 and second holding means 12 respectively overlapping the first side face 20c and the second side face 20d of the heat exchanger 20 and engaging with the rear face 20b of said heat exchanger 20.
    [0005] The heat exchanger 20 generally has a parallelepiped shape and therefore has other side faces. The heat exchanger 20 also comprises boxes 20, 24 for supplying and circulating a second heat transfer fluid within said heat exchanger 20. As illustrated in FIGS. 1, 3 and 3035956, the first 20c and second 20d side faces may be the side faces which do not carry the boxes 22, 24. It is nevertheless quite possible to imagine a particular embodiment where the first holding means 11 and the second holding means 12 overlap the boxes 22, 24.
    [0006] The first lateral face 20c and the second lateral face 20d of the heat exchanger 20 are here the upper lateral faces, that is to say oriented upwards, and lower, that is to say oriented downwards. . Therefore, the gravity also plays in the maintenance of the protection device 1 and this limits the risk of displacement by sliding of said protection device 1 along the heat exchanger 20. According to a first embodiment illustrated in FIGS. and 3, the first holding means 11 comprise three fixing hooks engaging the rear face 20b of the heat exchanger 20; the second holding means 12 comprise three fastening lugs elastically fitted against the rear face 20b of the heat exchanger 20. The introduction of the protection device 1 according to this first embodiment therefore requires two steps, a first step hooking of the protection device 1 by means of the fastening hooks on the first lateral face 20c and a second step of snap-fastening the elastically fitting fastening tabs by simply pushing said protection device 1 against the heat exchanger 20. a variant not shown of the embodiment, the number of hooks or brackets is different, for example four hooks and four brackets. According to another variant, the number of hooks and the number of tabs are different, for example two hooks and three brackets. According to a second embodiment illustrated in FIGS. 4, 5 and 6, the first 30 holding means 11 and the second holding means 12 comprise two 3035956 7 three fastening lugs with elastic casing against the rear face 20b of the exchanger 20. As illustrated in Figures 2 to 5, the elastic casing fastening lug 5 comprises a flexible blade of general shape in "J" comprising two branches of different lengths and a bend connecting the two branches. The longest branch takes root on the protective grid 30. The shorter branch forms a ramp for snapping the fastening lug on the exchanger 20, the free end of the shorter branch being intended for come into contact with the rear face 20b of the heat exchanger 20. The distance separating the grid 30 from the free end of the shortest branch corresponds to the thickness of the exchanger 20. The thickness of the exchanger 20 corresponds to the width of the lateral faces 2c, 2d. According to an alternative embodiment illustrated in FIG. 6, the fastening lug 15 with elastic casing comprises a flexible lamella fixed at one of its ends to the protection device and comprising at its other end a bevelled head forming a ramp intended to come to the contact of the rear face 20b of the heat exchanger 20. The fixing lug has indeed a recess between the beveled head and the flexible blade. The flexible strip has a length between the grid 30 and the beveled head 20 corresponds to the thickness of the exchanger 20. In both cases, during assembly, the fixing tabs deform by the movement of the device 1 to the 20a of the exchanger 20. The tabs slide on the side faces 20c, 20d until, for each tab, the shorter branch of the leg or the beveled head has passed the other side of the side faces 20c, 20d so that the faces 20c, 20d are sandwiched between the grid 30 and the shorter branches of the legs or bevel heads. The installation of the protection device 1 according to this second embodiment then comprises only one step of snap fastening of the elastically fitting fastening tabs 30 by simply pushing said protection device 1 against the heat exchanger. 20. In the embodiment of FIG. 3, it will be noted that the hooks are not elastic, the saddle hooks are positioned on the lateral face and then the latching movement of the fastening tabs on the lateral face is carried out. opposite in the same way as exposed for the other embodiments. Whatever the embodiment, the first holding means 11 and 10 second holding means 12 allow rapid attachment of the protective device 1 on the front face 20a of the heat exchanger 20 without the need to equip said heat exchanger 20 with particular elements for fixing. The protective grid of the protection device 1 may comprise one to several separating elements (not shown). These separator elements are intended to come into contact with the front face 20a of the heat exchanger 20, and are held in contact with said front face 20a through the first 11 and second 12 holding means.
    [0007] These separator elements are then spacers between the protective grid and the front face 20a of the heat exchanger 20. The fact that the gate is removed from the front face 20a of the heat exchanger 20 allows that in case of vibrations, said grid does not come into contact with said front face 20a and thus generates noise and / or can not damage the heat exchanger 20. Such a separating element may for example be a frame surrounding the protective grid, said protective grid being positioned recessed within said frame.
    [0008] Thus, it is clear that the protective device 1 from these fastening means allows a quick fixing and does not require a particular element within the heat exchanger 20 to be fixed on the latter.
    权利要求:
    Claims (9)
    [0001]
    REVENDICATIONS1. Protective device (1) for heat exchanger (20), said heat exchanger (20) having at least one front face (20a) and one rear face (20b) in opposition to each other, and a first side face (20c) and a second side face (20d) in opposition to each other, said protection device (1) having a protective grid and being intended to be placed facing the front face (20a) said heat exchanger (20), characterized in that the protective grid comprises on two opposite ends respectively first holding means (11) and second holding means (12) adapted to overlap an associated lateral face (20b, 20c) of the heat exchanger (20) and to engage with the rear face (20b) of said heat exchanger (20).
    [0002]
    2. Protection device (1) according to the preceding claim, characterized in that at least the first holding means (11) or the second holding means (12) comprise at least one attachment hook intended to engage with the rear face (20b) of the heat exchanger (20).
    [0003]
    3. Protection device (1) according to one of the preceding claims, characterized in that at least the first holding means (11) or the second holding means (12) comprise at least one fastening lug with elastic casing against the rear face (20b) of the heat exchanger (20).
    [0004]
    4. Protection device (1) according to claim 3, characterized in that the elastically fitting fastening lug comprises a flexible blade rooted on the protective grid and having at its free end a beveled head intended to engage with the rear face (20b) of the heat exchanger (20). 3035956 11
    [0005]
    5. Protective device (1) according to claim 3, characterized in that the fastening lug with elastic casing comprises a flexible lamella of general shape "J" comprising two branches of different lengths connected by a bend, the branch la longer taking root on the protective grid and the free end of the shortest branch being intended to come into contact with the rear face (20b) of the heat exchanger (20).
    [0006]
    6. Protective device (1) according to one of claims 3 to 5, characterized in that the first holding means (11) and the second holding means (12) both comprise at least one fixing lug. resilient casing against the rear face (20b) of the heat exchanger (20).
    [0007]
    7. Protective device (1) according to one of the preceding claims, characterized in that it comprises separating elements intended to be placed between the protective grid and the front face (20a) of the heat exchanger (20). ).
    [0008]
    8. Protection device (1) according to one of the preceding claims, characterized in that it is made of plastic. 20
    [0009]
    9. Heat exchange assembly comprising a heat exchanger (20) and a protection device (1) according to one of the preceding claims and placed on said exchanger (20).
    类似技术:
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    同族专利:
    公开号 | 公开日
    WO2016177826A1|2016-11-10|
    EP3292366A1|2018-03-14|
    FR3035956B1|2019-06-21|
    EP3292366B1|2020-07-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5042575A|1990-08-27|1991-08-27|General Motors Corporation|Evaporator core having biocidal fixture|
    EP0756074A1|1995-07-27|1997-01-29|Valeo Thermique Moteur S.A.|Protective cover for a heat exchanger of a vehicle|
    US6810950B1|2003-09-13|2004-11-02|Manze, Iii Louis F.|Radiator cover|US20180120040A1|2015-05-06|2018-05-03|Valeo Systemes Thermiques|Heat exchanger comprising a protective device|
    WO2018202631A1|2017-05-02|2018-11-08|Valeo Systemes Thermiques|Heat exchange device comprising a protective net|
    WO2018202632A1|2017-05-02|2018-11-08|Valeo Systemes Thermiques|Heat exchanger protection device|
    FR3066013A1|2017-05-02|2018-11-09|Valeo Systemes Thermiques|HEAT EXCHANGE TUBE AND HEAT EXCHANGER HAVING AT LEAST ONE SUCH TUBE|
    CN109073341A|2016-12-12|2018-12-21|法雷奥热系统公司|Heat-exchange device including protective device|
    DE102018124295A1|2018-10-02|2020-04-02|Volkswagen Aktiengesellschaft|Mounting arrangement for a heat exchanger|
    EP3457071A1|2017-09-18|2019-03-20|Valeo Autosystemy SP. Z.O.O.|A protection device for a heat exchanger|
    EP3591328A1|2018-07-03|2020-01-08|Valeo Autosystemy SP. Z.O.O.|A heat exchanger module with protective grid for directing and distributing air|
    EP3590771B1|2018-07-03|2021-03-03|Valeo Autosystemy SP. Z.O.O.|A protective grid system with sealing elements|
    法律状态:
    2016-05-27| PLFP| Fee payment|Year of fee payment: 2 |
    2016-11-11| PLSC| Search report ready|Effective date: 20161111 |
    2017-05-30| PLFP| Fee payment|Year of fee payment: 3 |
    2018-05-28| PLFP| Fee payment|Year of fee payment: 4 |
    2019-05-31| PLFP| Fee payment|Year of fee payment: 5 |
    2020-05-30| PLFP| Fee payment|Year of fee payment: 6 |
    2021-05-31| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1554050|2015-05-06|
    FR1554050A|FR3035956B1|2015-05-06|2015-05-06|PROTECTIVE DEVICE FOR THERMAL EXCHANGERS|FR1554050A| FR3035956B1|2015-05-06|2015-05-06|PROTECTIVE DEVICE FOR THERMAL EXCHANGERS|
    EP16722131.6A| EP3292366B1|2015-05-06|2016-05-04|Protective device for heat exchangers|
    PCT/EP2016/060082| WO2016177826A1|2015-05-06|2016-05-04|Protective device for heat exchangers|
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