FR2950641A1 - Device for interlocking photovoltaic panels with building roof, comprises longitudinal profiles fixed to roof and arranged in direction of roof slope, and clamping unit for maintaining lateral edges of panels with respect to roof - Google Patents

Abstract

The device for interlocking photovoltaic panels with a building roof, comprises longitudinal profiles (4) fixed to the roof and arranged in the direction of the roof slope, and a clamping unit for maintaining the lateral edges of panels with respect to the roof. Each of the longitudinal profiles has a lower section (40) fixed to the roof for supporting a bearing surface (41) by lateral edges of the panels, an upper section (42) of which the longitudinal walls extend over bearing surface and are able to prevent lateral slippage of the panels, and two longitudinal troughs (43, 44). The device for interlocking photovoltaic panels with a building roof, comprises longitudinal profiles (4) fixed to the roof and arranged in the direction of the roof slope, and a clamping unit for maintaining the lateral edges of panels with respect to the roof. Each of the longitudinal profiles has a lower section (40) fixed to the roof for supporting a bearing surface (41) by lateral edges of the panels, an upper section (42) of which the longitudinal walls extend over bearing surface and are able to prevent lateral slippage of the panels, and two longitudinal troughs (43, 44) arranged laterally on both sides of the lower section. Each of the two troughs supports longitudinal channels (45, 46) for the condensate recovery. Membranes are arranged between two adjacent longitudinal sections, extend with respect to a longitudinal row of panels, comprise an attachment unit matching with the longitudinal troughs at their longitudinal edges. The device is fixed to the roof by a base equipped with lateral troughs to match with a part of rod fixed to the roof by a fastener. Joints are arranged in the panels, and longitudinal lips extend from longitudinal edges of joints to inside of the longitudinal channels to guide the condensate in the channels. The surface for supporting the lower section is provided with longitudinal grooves to contact with intermediate supporting elements. Each of clamping unit comprises a stud provided with a notch laid astride the upper profile. The stud is further provided with a traversing hole contacting with a washer and a screw to avoid the rising edges of the panels, and comprises two transverse surfaces of stop on both sides of the notch. The stop surfaces are able to support the lower transverse edges of panels to avoid longitudinal slipping of the panels. Support joints formed as intermediate support elements are laid between the panels and longitudinal grooves of the bearing surface. Each of support joints has a longitudinal protuberance contacting with one of the longitudinal grooves of the support surface. Jumpers forming the clamping unit are formed at the lateral section of the upper section, and laid astride on the upper sections. Each of the jumpers has two lateral legs for holding two adjacent panels arranged each side of the longitudinal profile, and a hole contacting with a screw to secure the jumper on the upper section. Separation clogs are arranged astride the upper profile and have lateral fins on which the lower edges of panels adjoin. Lower joints having a longitudinal section of trapezoidal form are positioned between the longitudinal profiles and panels. Upper joints have a longitudinal section of the trapezoidal form and an inclination equal to that of lower joints, are positioned between the panels and clamping profiles forming the clamping unit, and are arranged on the panels with an orientation opposite to that of the lower joints for using clamping profiles of flat shape for holding two adjacent panels arranged one below another. The lower and/or upper joints have a longitudinal protrusion contacting with grooves formed in the supporting surface and/or grooves of complementary form provided in the clamping profiles. Elongated hoods are used to mask mechanical elements for fixing clamping profiles with longitudinal profiles. Each elongated hood comprises a clipping unit for connecting with a groove formed in the clamping profiles. Flexible membranes are arranged between two adjacent longitudinal profiles and at the opposite of an expansion joint separating two elements of the roof on which the device is connected. Each flexible membrane comprises a rod connecting with the trough formed within longitudinal profiles at level of each of its longitudinal edges.

Description

-1- DEVICE FOR SOLIDARIZING PANELS, PARTICULARLY PHOTOVOLTAIC WITH A ROOFING ROOF

TECHNICAL FIELD The present invention relates to the field of devices for integrating and maintaining in position panels, and more particularly photovoltaic panels on a building roof. Such panels make it possible to produce electrical energy from solar radiation. More specifically, this type of device comprises on the one hand a plurality of metal profiles arranged in the direction of the slope and to maintain the lateral edges of the panels, and possibly a plurality of metal sections arranged in a direction normal to the first sections, and to maintain the lower and upper edges of the panels.

PRIOR ART

In general, various types of devices are known that make it possible to join photovoltaic panels on a roof.

In particular, devices are known in which the panels are arranged coplanarly in a plane parallel to the slope of the roof, each panel being flanked by longitudinal rails and transverse rails.

However, this type of device is difficult to achieve and requires relatively complex sealing means to ensure sealing at the junction between two adjacent panels arranged one below the other in the direction of the slope of the roof .

Thus, an object of the invention is to provide a device for joining photovoltaic panels with a roof that does not require complex means to achieve and position on the roof. Another object of the invention is to propose a solution making it possible to ensure, in the particular case of panels arranged in clinch (or tile), a seal at the junction between two adjacent panels arranged. one below the other in the direction of the slope of the roof. Another object of the invention is to provide a fastening device that can be used in the case of panels arranged in clinch (with overlap) or coplanar (without overlap), and which provides an optimum seal. Indeed, a lack of tightness is a particularly important point, because such a leakage can not be detected by a quick visual inspection of the roof, without a prior disassembly of photovoltaic panels since they hide the origin .

SUMMARY OF THE INVENTION The invention therefore relates to a device for joining panels, in particular photovoltaic panels with a roof of a building, the device comprising at least: longitudinal sections secured to the roof and arranged in the direction of the slope of the roof ; - Clamping means adapted to maintain in position the lateral edges of the panels relative to the roof.

According to the invention, each of the longitudinal profiles has at least: a lower section secured to the roof, and supporting a bearing surface of the lateral edges of the panels; - An upper section whose longitudinal walls extend above the bearing surface, and are able to prevent any lateral sliding of the panels; and two longitudinal troughs arranged laterally on either side of the lower section, each of the two chutes supporting a longitudinal channel intended for the recovery of condensate. In other words, each of the longitudinal sections of the fastening device of the invention comprises in particular upper and lower sections, two chutes and two longitudinal channels.

Advantageously, the bearing surface of the lower section of the profile is laterally provided with longitudinal grooves adapted to cooperate with intermediate support elements, and typically seals.

The lower section has a base secured to the roof, and two longitudinal walls extending from said base. This lower section supports in particular a support surface of the lateral edges of the panels, and two longitudinal walls extending from the bearing surface to form the upper section. The longitudinal walls of the lower section may further extend over all or part of the thickness of the panels to prevent any lateral sliding of these panels. It is possible to provide an intermediate support element, such as a joint for example, between the lateral edges of the panels and the bearing surface. To do this, longitudinal grooves are provided in the bearing surface to allow anchoring of these intermediate elements.

The two longitudinal chutes are arranged, preferably symmetrically, on either side of the lower section. Each chute supports a longitudinal channel. For example, each of the longitudinal chutes may be arranged in a corner formed by the base and the two longitudinal walls of the lower section, and may have a cross section in the form of C.

The longitudinal channels, intended for the recovery of condensate, are also arranged on either side of the lower section, preferably symmetrically, and are each delimited by a longitudinal wall of the lower section, a chute, and a fin. extending from said chute. Thus, the fastening device of the invention has the advantage of having a longitudinal profile that is simple to achieve, in particular by aluminum die, and ask, and that allows different solutions to maintain the panels compared to the 2950641 Roofing, as well as to guarantee an optimal seal according to whether the panels are arranged in a clap or in a coplanar manner.

According to a particular embodiment, the securing device may further comprise sealing membranes, each being arranged between two adjacent longitudinal sections, and extending facing a longitudinal row of panels, the waterproofing membranes. comprising at their lateral edges fastening means cooperating with the longitudinal chutes.

These sealing membranes are capable of fulfilling different functions. First, they prevent rainwater dripping on the panels from flowing over the roof. In addition, they make it possible to guarantee the tightness with regard to the condensates likely to form on the internal face of the photovoltaic panels. Furthermore, they are able to recover debris resulting for example from breaking or breaking one or more panels. In addition, depending on the material or materials that constitute them, the membranes can confer fire resistance capabilities to the structure, and in particular meet the requirements, such as in particular an MO or Ml classification. Finally, said membranes can act as protection and resistance against the fall of operators and other parties likely to intervene at said panels. Thus, in the event of breakage or breakage of such a panel, and as a result of the operator's fall, the latter is "recovered" by said membrane, thereby avoiding damaging accidents. In doing so, these membranes give the structure the qualities required to meet, for example, the test book 3228 of the CSTB (Scientific and Technical Building Center). The upper and lower edges of the membranes can be folded over a possible edge fabric to provide additional sealing. The attachment means are for example constituted by rods of complementary shape to the chute, which can be introduced into a chute by sliding. According to a particular embodiment, the securing device may further comprise seals arranged at the junction between the panels, and longitudinal lips which extend from the lateral edges of these seals to the inside. - Channels to guide the condensate in said channels. For example, the free ends of the channels may be provided with flanges to better support said lips.

According to one embodiment, each of the clamping means comprises at least one stud provided with a notch disposed astride the upper section, said stud being further provided with a through orifice cooperating with a washer and a screw to prevent the lifting of the edges of the panels.

Advantageously, some of the studs have transverse stop surfaces distributed on either side of the notch, said stop surfaces being able to support the lower edges of the panels to prevent any longitudinal sliding of these panels.

This embodiment is particularly suitable for photovoltaic monocrystalline photovoltaic module panels composed of a plurality of monocrystalline silicon photovoltaic cells connected in series and held in a frame.

In this particular case, the panels are not arranged in a wink, and the lower edges of the photovoltaic modules abut on the stop surfaces of the pads. The washers make it possible to avoid any lifting of the edges of the panels and the set of studs, screws and washers makes it possible to maintain the panels with respect to the roof. The upper section is preferably pierced with several through holes 25 to allow the passage of the screws and thus secure the clamping means to the longitudinal profile.

According to another embodiment, the securing device may further comprise support joints forming intermediate support elements, arranged between the panels and the longitudinal grooves of the bearing surface, each of the bearing joints having a longitudinal protrusion cooperating with one of said longitudinal grooves of said bearing surface. Preferably, the securing device further comprises jumpers forming clamping means, of shape complementary to the lateral section of the upper section, and arranged straddling said upper section, each of the riders having two lateral lugs for prevent raising of the lateral edges of two adjacent panels arranged on either side of the longitudinal section. Each of the jumpers further having a through hole cooperating with a screw so as to secure the jumper on the upper section.

Preferably, the securing device may further comprise separation shoes arranged astride the upper section, each of the separation shoes having lateral fins on which abut the lower edges of the panels.

In other words, in this other embodiment, the panels are arranged in a coplanar manner, and the lower edges of the panels abut on the lateral fins of the separation shoes. These lateral fins thus create a space between the lower edge of one panel and the upper edge of another adjacent panel. The side tabs of the riders avoid the lifting of the lateral edges of the panels and participate in maintaining these panels on the longitudinal sections. The upper section 20 may be pierced with several through holes to allow the passage of the screws and thus secure the clamping means to the longitudinal section.

According to another embodiment, the securing device may further comprise lower seals positioned between the longitudinal sections and the panels, and each having a trapezoidal longitudinal section, these lower seals making it possible to partially overlap the panels between them in the direction of the slope of the roof.

In other words, in this other embodiment, the device comprises a plurality of lower seals making it possible to modify the inclination of the panels with respect to the slope of the roof so as to achieve the partial overlap of the upper edge of each panel by the lower edge of the adjacent panel arranged above the first panel considered. Thus, the photovoltaic panels are arranged between them like partially overlapping tiles, and the water can run off their surface without requiring complex sealing means at their lower and upper edges.

Advantageously, the securing device further comprises upper seals each having a longitudinal section of trapezoidal shape and an inclination equal to that of the lower seals. Such top seals are positioned between the panels and clamping clamping profiles, and are arranged on the panels with an opposite orientation to that of the lower seals to allow the use of flat shaped clamping profiles to maintain in position two adjacent panels arranged one below the other.

In other words, the upper joints make it possible to make up the inclination of the photovoltaic panels with respect to the orientation of the slope of the roof and to define a continuous flat strip extending over the various panels to allow the use of a continuous clamping profile extending over all or part of the panels in the direction of the slope of the roof. In addition, this arrangement allows parallel positioning of the clamping profile relative to the longitudinal profile facing and thus facilitates their joining. For example, the lower and upper seals have a circular cross-section. The lower and upper seals thus have a conical shape.

The lower and upper seals may be identical. Indeed, such similarity reduces the manufacturing cost of these profiles since they are then manufactured in a double amount. Such a characteristic also makes it possible to simplify the storage of the joints in view of the manufacture of the securing device and makes it possible to avoid errors in positioning the seals during the manufacture of the device. Advantageously, the lower and / or upper seals each have a longitudinal protrusion cooperating with the longitudinal grooves formed in the bearing surface and / or with grooves of complementary shape formed in the clamping profiles. In this way, the lower seals are integral with the longitudinal sections and the upper seals are integral with the clamping profiles. They can be introduced in particular by sliding the excrescences inside the grooves, but in practice, the longitudinal protrusions may include latching means cooperating with the grooves. Thus, in this case, the seals are positioned facing the grooves and a pressure exerted on their surface allows to deform the protrusions which, once inside the grooves, resume their original shape preventing accidental or inadvertent release of the lower seals or higher.

According to a particular embodiment, the securing device may comprise long-end caps designed to mask mechanical elements for securing the clamping profiles to the longitudinal profiles. Such covers also guarantee the seal at the mechanical fastening elements and allow to generate a visual effect of continuity over the entire length of the clamping profiles.

Furthermore, the elongated covers may each comprise latching means co-operating with a groove formed in the clamping profiles. In other words, as well as the lower and upper seals, the elongated hoods can be secured to the clamping profiles by exerting a pressure on their surface, having the effect of deforming two tabs emerging substantially perpendicularly from a convex zone of the long hood. . These tabs are able to get closer to each other and then to deviate once inside the groove of the clamping profile.

In practice, the securing device may comprise flexible membranes arranged between two adjacent longitudinal sections, and facing an expansion joint separating two elements of the roof on which the device is attached. These flexible membranes thus make it possible to ensure a seal and to compensate for position variations, in particular due to the thermal expansion of the materials, between two groups of photovoltaic panels positioned respectively above two elements of the roof and in particular two elements of a metal frame. Such flexible membranes can be made by means of a rubber band.

The flexible membrane is positioned inside the profiles by introducing it by sliding and by making a tensile force at one of the ends of the flexible membrane. The profiles are in turn maintained in position 10 relative to the longitudinal sections by means of a connection joint and a clamping section whose section is constant over their entire length. Furthermore, the lower part of the profile may comprise a groove cooperating with an outgrowth of the longitudinal section so as to remove two degrees of mobility in translation in a plane perpendicular to the longitudinal sections. The third degree of mobility in translation in the longitudinal direction of the profiles is removed by the friction force of the connection joint on the connecting section.

SUMMARY DESCRIPTION OF THE FIGURES

The invention will be better understood on reading the following description, given solely by way of example and with reference to the appended drawings, in which: FIG. 1 is a schematic view of the cross-section of FIG. a longitudinal profile of a fastening device according to the invention; FIG. 2 is a partial view in perspective of a securing device according to one embodiment of the invention; - Figure 3 is a partial schematic view of a longitudinal section of the securing device of Figure 2; - Figure 4 is a partial schematic view of a cross section of the securing device 30 of Figure 2; - Figure 5 is a partial view in perspective of a securing device according to another embodiment of the invention; - Figure 6 is a partial schematic view of a longitudinal section of the securing device of Figure 5; - Figure 7 is a partial schematic view of a cross section of the securing device of Figure 5; FIG. 8 is a partial exploded view in perspective of a securing device according to another embodiment of the invention; - Figure 9 is a partial schematic sectional view of the securing device of Figure 8; - Figures 10 and 11 are partial schematic sectional views, respectively along the lines I-I and II-II of Figure 8, illustrating a high point and a low point of the joining photovoltaic panels; FIG. 12 is a diagrammatic view in partial section of the junction between two adjacent panels located one above the other, according to the embodiment of FIG. 8; - Figure 13 is a partial schematic view of a cross section of the fastening device according to Figure 8 provided with condensate recovery lips.

EMBODIMENT OF THE INVENTION The device 1 for joining the invention makes it possible to hold photovoltaic panels 2, 20 in relation to a roofing roof 3, and in particular comprises longitudinal profiles 4 and possibly transverse profiles, which can be metal, as well as clamping means (screws or crap to ensure the phenomena of differential expansion of materials). The longitudinal sections 4 are secured to the roof 3 and arranged in the direction of the slope of the roof 3, the transverse profiles, when implemented, are secured to the longitudinal sections 4 and arranged perpendicularly to the longitudinal sections 4, and the clamping means make it possible to maintain in position the lateral edges of the panels 2, 20 with respect to the roof 3. 2950641 - 11 - With reference to FIG. 1, each of the longitudinal profiles 4 comprises in particular an upper section 42 and lower section 40, two chutes 43, 44 and two channels 45, 46.

The lower section 40 has a base 400 secured to the roof 3, and two longitudinal walls 401, 402 extending from said base 400. The lower section 40 supports a bearing surface 41 of the lateral edges of the panels 2, 20 to above which extend two longitudinal walls 420, 421 to form the upper section 42. To prevent lateral sliding of the panels 2, 20, the two longitudinal walls 420, 421 of the upper section 42 extend over all or part of The longitudinal grooves 410, 411 are formed at the lateral ends of the bearing surface 41, and can in particular serve to anchor intermediate bearing elements on the longitudinal section 4. , these intermediate support elements being for example seals.

The two longitudinal troughs 43, 44 are arranged symmetrically, on either side of the lower section 40, each supporting a longitudinal channel 45, 46. In a particular embodiment, each of the troughs 43, 44 has a cross-sectional shape. of C, and is disposed at a corner formed by the base 400 and the two longitudinal walls 401, 402 of the lower section 40. The troughs 43, 44 are in particular intended to cooperate with attachment means 70 of a sealing membrane 7.

The two channels 45, 46, also symmetrically disposed on either side of the lower section 40, are each delimited by a longitudinal wall 401, 402 of the lower section 40, the chute 43, 44 associated, and a fin 430 440 extending from said chute 43, 44.

In a particular embodiment of the invention, each photovoltaic panel 2 may be a monocrystalline photovoltaic module composed of a plurality of monocrystalline silicon photovoltaic cells 21 connected in series and held in a frame 22. In this particular embodiment and with reference to FIGS. 2 to 4, the panels 2, 20 are arranged on the securing device 1 in a coplanar manner, so that two adjacent panels 2, 20 of the same longitudinal row do not overlap. not between them. In addition, the panels 2, 20 are distributed on either side of the longitudinal profiles 4, their lateral edges resting on the different bearing surfaces 41.

These panels 2, 20 are held in position relative to the roof 3 by means of studs 60, washers 602 and screws 601. Each stud is provided with a notch 600 of complementary shape to the upper section 42 and is disposed astride said upper section 42 via this notch 600. As illustrated in Figure 2, the pads 60 are distributed along the longitudinal sections 4, and each panel 2, 20 can be maintained by a plurality of studs 60 cooperating with washers 602 and screws 601. Each lateral edge of the panels 2, 20 is thus sandwiched between a bearing surface 41 and washers 602. As illustrated in FIG. 4, the upper sections 42 and the studs 60 are provided with through orifices cooperating with the screws 601 to keep the studs 60 integral with the longitudinal sections 4. In addition, the assembly of the studs 60, screws 601 and washers 602 makes it possible to prevent the edges of the studs from being raised. nneaux 2, 20. Some of the pads 60 further comprise transverse stop surfaces 603, 604 distributed on either side of the notch 600. These pads 60 are arranged on the longitudinal profiles 4 so that their surfaces stop 603, 604 serve as a stop at the lower edges of the panels 2, 20, thus preventing longitudinal sliding of these panels 2, 20.

In this particular embodiment, the seal is provided by means of sealing membranes 7 arranged between the longitudinal sections 4. More specifically, each of the sealing membranes 7 is arranged between two longitudinal sections 4 and 30 '. extends in front of a longitudinal row of panels 2, 20. In addition, each membrane 7 comprises at its lateral edges fastening means 70 which cooperates with the troughs 43, 44 to hold the membrane 7 taut, and so to protect the roof 3, besides possibly fulfilling the functions of protection against fire, besides mechanical resistance against the fall of the operators. For example, the attachment means 70 are rod-shaped type complementary to the channels 43, 44, and introduced into said channels 43, 44 by sliding. Furthermore, the upper and lower edges of each of these membranes 7 can be folded over a possible edge fabric 72 to provide additional sealing.

In another particular embodiment of the invention, and with reference to FIGS. 5 to 7, a support joint 90 is interposed between each lateral edge of the panels 2, 20 and the corresponding support surface 41. Each bearing seal 90 has a longitudinal protrusion 900 which cooperates with a longitudinal groove 410, 411 of the bearing surface 41. The shape of the groove 410, 411 of the support surface 41 and that of the protrusion 900 of the support seal 90 are preferably complementary so that the support seal 41 remains secured to the longitudinal profile 4.

In this other particular embodiment, the panels 2, 20 are arranged without overlapping them, and are held in position relative to the roof 3 with jumpers 61 of shape complementary to the cross section of the upper sections 42 and arranged astride these last ones.

The jumpers 61 are distributed along the longitudinal profiles 4. Each jumper 61 has two legs 610, 611 side so that each transverse edge of each panel 2, 20 are sandwiched between a support seal 41 and a lug 610 611 of one or more jumpers 61. Each jumper 61 is provided with a through hole cooperating with a screw 612 to maintain the jumper secured to the longitudinal profile 4, also provided with through holes. This joining of the jumpers 61 on the longitudinal profiles 4 further makes it possible to prevent any lifting of the transverse edges of the panels 2, 20 arranged sandwiched between tabs 610, 611 and the support joints 90.

Moreover, separation shoes 10 are arranged astride the upper section 42, each of the separation shoes 10 having lateral fins 100, 101 on which abut the lower edges of the panels 2, 20. Thus, these fins 100 , 101 allow not only to avoid longitudinal sliding of the panels 2, 20 but also allow for separation between two panels 2, 20 adjacent at their upper and lower edges respectively. In addition, the separation shoes 10 can be fixed to the longitudinal profiles 4 by means of screws 102. Moreover, in this other particular embodiment, the seal can be made using sealing membranes. 7 such as those described in the previous embodiment.

In another particular embodiment and with reference to FIGS. 8 to 13, the panels 2, 20 are arranged between them like partially overlapping tiles. Note that in Figures 9 to 13, the longitudinal section has been shown in a simplified manner so as not to weigh down the figures.

As shown in FIGS. 8 and 9, the securing device 1 comprises a plurality of longitudinal profiles 4 arranged in the direction of the slope of the roof 3.

The partial overlap between two panels 2, 20 arranged one above the other 20 is obtained by means of lower seals 91 positioned between the longitudinal sections 4 and the panels 2, 20 and each having a longitudinal section of trapezoidal shape. Thus, the upper section of the lower joints 91 has a height lower than that of the lower section, and this characteristic makes it possible to modify the inclination of the panels 2, 20 with respect to the slope of the roof 3 so as to achieve the overlap partial of the upper edge of each panel, by the lower edge of the adjacent panel arranged above the first panel. In addition, this arrangement allows water to flow to the surface of the panels 2, 20 without requiring complex sealing means at their lower and upper edges.

The panels 2, 20 are held in position at their lateral edges by means of clamping profiles 62 extending over a plurality of overlapping photovoltaic panels 2, 20. To do this, upper seals 92 are arranged between the panels 2, 20 and a clamping profile 62 secured to the longitudinal sections 4. The upper seals 92 each have a trapezoidal longitudinal section and an inclination equal to that of the lower seals 91, and are arranged on the panels 2, 20 with an orientation opposite to that of the lower seals 91. The upper seals 92 thus make it possible to make up the inclination of the panels 2, 20 with respect to the orientation 5 of the slope of the roof 3 and define a continuous flat strip extending above the various panels 2, 20 to allow the use of a continuous clamping profile 62 extending over all or part of the panels 2, 20 in the direction of the slope of the roof 3. Furthermore, this arrangement makes it possible to position the clamping profile 62 in parallel with respect to the longitudinal profile 4 opposite and thus facilitates their solidar ization. Thus, as shown in FIG. 10, corresponding to the section I - I of FIG. 9, that is to say near a high point of a panel 2, 20, the lower seal 91 presents a minimum height while the upper seal 92 has a maximum height. And as shown in FIG. 11, corresponding to the section II - II of FIG. 9, that is to say at the level of a low point of attachment of a panel 2, 20, the lower seal 91 has a maximum height while the upper seal 92 has a minimum height. In this way, the inclination of the panels with respect to the slope of the roof 3 is modified and partial overlap of the lower and upper edges of two adjacent panels 2, 20 arranged one above the other is allowed. Lower and upper seals 91 and 91 may further have a circular cross-section and be of identical shape. In addition, they may comprise a longitudinal protrusion 910, 920 cooperating with a groove 620 formed in the clamping profile 62 or in the bearing surface 41. This arrangement makes it possible in particular to pre-position the lower and upper seals 91, 92 on the longitudinal profiles 4 and the clamping profiles 62 maintaining a degree of mobility in the longitudinal direction of the profiles.

In addition, the device 1 may comprise an elongated cover 11 extending above the clamping profile 62. Such a cover 11 may make it possible to hide mechanical fastening elements such as screws 112. This elongated cover may comprise means snap-fastener 110, 111 cooperating with a groove 622 formed in the clamping profile 62. Such elongated hoods 11 may in particular be made of an aluminum alloy.

As shown in FIG. 12, the device may also comprise flexible membranes 13 arranged between two longitudinal sections 47, 48 facing an expansion joint 27 separating two elements 28, 29 from the roof 3. Such a flexible membrane 13 comprises, at its edges, rods 130 which can cooperate with the channels 43, 44 longitudinal profiles. Thus, the flexible membrane 13 is inserted into the troughs 43, 44 by sliding in the direction of the longitudinal sections 4.

As illustrated in FIG. 13, the sealing of the device can be reinforced by means of membranes 7 as in the previous embodiments and will not be described again here. Furthermore, as shown in this same figure 13, seals 8 may be arranged under the panels 2, 20. These seals 8 have lateral edges from which extend lips 80, 81 longitudinal. The free end of each of the lips 80, 81 extends inside one of the channels 45, 46 of a longitudinal profile 4 to guide any condensate in said channel 45, 46.

It follows from the foregoing that a device according to the invention has many advantages and in particular: it is usable for panels arranged in clinching or not; It guarantees an optimal sealing for the roof; it guarantees an optimum seal at the junction between two lower and upper selvedges of two adjacent panels arranged one above the other; it makes it possible to maintain a flat visual effect of the roof; • it adapts to the dimensional variations of a roof with expansion joints; • it guarantees the safety of operators and users; • It can confer non-fire properties on the entire roof.

Claims (16)

REVENDICATIONS1. Device (1) for joining panels, in particular photovoltaic panels (2, 20) with a building roof (3), said device (1) comprising at least: longitudinal profiles (4) secured to the roof (3) and arranged in the direction of the slope of the roof (3); - clamping means (60, 61, 62) adapted to maintain in position the lateral edges of the panels (2, 20) relative to the roof (3); characterized in that each of the longitudinal profiles has at least: - a lower section (40) secured to the roof (3), and supporting a bearing surface (41) of the lateral edges of the panels (2, 20); - an upper section (42) whose longitudinal walls (420, 421) extend above the bearing surface (41), and are capable of preventing lateral sliding of the panels (2, 20); and two longitudinal troughs (43, 44) arranged laterally on either side of the lower section (40), each of the two troughs (43, 44) supporting a longitudinal channel (45, 46) intended for condensate recovery . 2. Device according to claim 1, characterized in that it further comprises membranes (7), each of the membranes (7) being arranged between two longitudinal profiles (4) adjacent and extending opposite a longitudinal row panels (2, 2), the membranes (7) having at their longitudinal edges fastening means (70) cooperating with the longitudinal channels (43, 44). 3. Device according to one of claims 1 or 2, characterized in that it further comprises seals (8) disposed under the panels (2, 20), and longitudinal lips (80, 81) extending from the longitudinal edges of the joints (8) to the interior of the longitudinal channels (45, 46) for guiding the condensate in said channels (45, 46). 4. Device according to one of claims 1 to 3, characterized in that the bearing surface (41) of the lower section (40) is provided with longitudinal grooves (410, 411) adapted to cooperate with intermediate elements d support (90, 91). 2950641 - 18 - 5. Device according to one of claims 1 to 4, characterized in that each of the clamping means comprises at least one stud (60) provided with a notch (600) disposed astride the upper profile (40), said The stud (60) is further provided with a through hole cooperating with a washer (602) and a screw (601) to prevent the edges of the panels (2, 20) from being lifted. 6. Device according to claim 5, characterized in that some of the pads (60) comprise two transverse stop surfaces (603, 604) on either side of the notch (600), said stop surfaces ( 603, 604) being adapted to support the lower transverse edges of the panels (2, 20) to prevent longitudinal sliding of these panels (2, 20). 7. Device according to one of claims 1 to 4, characterized in that it further comprises support joints (90) forming intermediate support elements, arranged between the panels (2, 20) and the grooves (410, 411) longitudinal of the bearing surface (41), each of the bearing joints (90) having a longitudinal protrusion (900) cooperating with one of said longitudinal grooves (410, 411) of the surface of support (41). 20 8. Device according to claim 7, characterized in that it comprises jumpers (61) forming clamping means, of complementary shape to the lateral section of the upper section (42), and arranged straddling the upper sections (42). ), each of the jumpers (61) having two lateral tabs (610, 611) holding two adjacent panels (2, 20) disposed on either side of the longitudinal profile (4), and further having a through hole cooperating with a screw (612) so as to secure the jumper (61) on the upper section (42). 9. Device according to one of claims 7 or 8, characterized in that it further comprises separation shoes (10) arranged astride the upper profile (42) 30 and having fins (100, 101) lateral on which abuts the lower edges of the panels (2, 20). 2950641 - 19 - 10. Device according to one of claims 1 to 4, characterized in that it further comprises lower seals (91) positioned between the longitudinal sections (4) and the panels (2, 20), and each having a section Longitudinal trapezoidal shape, these lower joints (91) allowing a partial overlap 5 panels (2, 20) between them in the direction of the slope of the roof (3). 11. Device according to claim 10, characterized in that it further comprises upper seals (92) each having a trapezoidal longitudinal section and an inclination equal to that of the lower seals (91), the upper seals (92). ) being positioned between the panels (2, 20) and clamping profiles (62) forming clamping means, and being arranged on the panels (2, 20) with an orientation opposite to that of the lower seals (91) to allow the use of plane-shaped clamping profiles (62) for holding two adjacent panels (2, 20) arranged in position beneath one another. 15 12. Device according to one of claims 10 and 11, characterized in that the lower and / or upper joints (91, 92) each have a protrusion (910, 920) longitudinal cooperating with longitudinal grooves (410, 411) arranged in the bearing surface (41) and / or with grooves (622) of complementary shape formed in the clamping profiles (62). 13. Device according to one of claims 10 to 12, characterized in that it further comprises elongate covers (11) for masking mechanical fastening elements of the clamping profiles (62) with the longitudinal profiles (4). . 14. Device according to claim 13, characterized in that the elongated covers (11) each comprise latching means (110, 111) cooperating with a groove (622) formed in the clamping profiles (62). 30 15. Device according to one of claims 10 to 14, characterized in that it further comprises flexible membranes (13) arranged between two adjacent longitudinal sections (47, 48), and facing an expansion joint ( 27) separating two elements (28, 29) from the roof (3) on which the device (1) is attached. 25 2950641 - 20 - 16. Device according to claim 15, characterized in that each flexible membrane (13) comprises at each of its longitudinal edges a rod (130) cooperating with the chute (43, 44) formed within the longitudinal profiles (4). .