• 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:
    Solar panel (P) comprising: - a photovoltaic module (1) comprising a front face (12) and a rear face (11), - an exchanger (2) disposed opposite the rear face (11) of said module (1), - a cooling fluid circulating in the exchanger (2), - the exchanger (2) having a heat exchange zone disposed under said module (1) in which the fluid flows, - internal channels extending over the entire surface of the exchange zone, characterized in that the heat exchange zone is formed by a double walled honeycomb plate (21) composed of an upper wall (21a) and a lower wall (21b) between which are arranged cells in the form of adjacent internal channels in fluid communication with the arrival and discharge areas.
    公开号:FR3034592A1
    申请号:FR1552907
    申请日:2015-04-03
    公开日:2016-10-07
    发明作者:Laetitia Brottier；Jerome Mouterde
    申请人:Solaire 2G；
    IPC主号:
    专利说明:

    [0001] 1 PHOTOVOLTAIC AND THERMAL SOLAR PANEL Description Technical field of the invention.
    [0002] The invention relates to a photovoltaic solar panel and thermal (hybrid) and its manufacturing process. It concerns the technical field of heat exchangers for the thermal control of hybrid solar panels. State of the art Photovoltaic solar panels make it possible to produce electrical energy from solar radiation. They comprise a plurality of photovoltaic elements (cells or thin layers) which operate according to the principle of the photoelectric effect. Generally, several photovoltaic elements are connected to each other on a photovoltaic solar panel, and several panels are connected to create a solar installation. This facility produces electricity that can be consumed on site or fed into a distribution network. Photovoltaic solar panels only convert a small fraction of solar radiation into electricity, the rest being unused heat.
    [0003] This heat is unfavorable to the electrical performance of solar panels 3034592 2 since we can see a decrease in the efficiency of photovoltaic elements with the temperature of about -0.45% / ° C. This is why it is doubly interesting to cool photovoltaic solar panels. Indeed, not only the efficiency of photovoltaic elements increases, but the 5 calories of cooling can be used in more or less complex heating systems. We are talking about hybrid solar panels capable of simultaneously producing electrical energy and thermal energy. Generally, a heat exchanger is arranged vis-a-vis the rear face of the photovoltaic module so as to cool the latter. The patent document WO 2012/069750 (SOLAR 2G) proposes a hybrid solar panel composed of a heat exchanger comprising a heat exchange zone in contact with the photovoltaic elements. This exchange zone has elements for disrupting the flow of a cooling fluid. In fact, this configuration requires a rather complex fabrication of the exchanger, thus increasing the cost of the solar panel. In addition, the exchanger is preferably made of metal (stainless steel) further increasing the cost and the weight of the panel.
    [0004] Patent EP 2,284,910 (ROTH WERKE GMBH) partially addresses the aforementioned drawbacks. Indeed, the proposed solar panel consists of the photovoltaic module and a heat exchanger placed vis-à-vis the rear face of said module. At least the upper face of the exchanger is made of plastic thus reducing the costs as well as the weight of the panel. The proposed exchanger comprises a heat exchange zone disposed beneath the photovoltaic module and in which a cooling fluid flows. This fluid moves in internal channels extending from a fluid inlet zone to an evacuation zone.
    [0005] The solar panel disclosed in EP 2 284 910 (ROTH WERKE GMBH) proposes an exchanger consisting of a lower face and an upper face which are distinct from one another. In such a configuration, it is necessary to have at least one of the faces which is shaped so as to be able to form the internal channels during the manufacture of the exchanger. Such a design requires relatively thick walls (generally greater than 1.5 mm). Such thicknesses reduce the heat exchange between the exchanger and the coolant, rendering the performance of the solar panel mediocre. In addition, the design of such a panel is complex and requires considerable time and cost of manufacture.
    [0006] In addition, in some installations, a thermosiphon effect is desired. This corresponds to the phenomenon of natural circulation of a liquid due to its mass change as a function of the temperature gradient. The configuration of the exchanger disclosed in EP 2,284,910 is capable of disturbing this thermosiphon effect, thus rendering the energy efficiency of the panel mediocre. In addition, with the type of solar panel described in patent document EP 2,284,910, a deformation of the channels can be observed under pressure. This deformation will cause a deformation of the exchanger, and therefore it is not properly pressed against the rear face of the photovoltaic module, which contributes to limiting the heat exchange and therefore reduces the energy efficiency of the solar panel. The invention aims to remedy this state of affairs. In particular, an object of the invention is to simplify the design of the exchangers for hybrid solar panels so as to reduce costs. A further object of the invention is to lighten the structure of the solar panel.
    [0007] Another object of the invention is to improve the heat exchange between the photovoltaic module and the heat exchanger. Yet another object of the invention is to provide an exchanger whose configuration makes it possible to obtain optimized energy efficiency. Another object of the invention is to provide an exchanger that allows to preserve and / or promote the thermosiphon effect.
    [0008] 10 Disclosure of the invention. The solution proposed by the invention is a hybrid solar panel comprising: a photovoltaic module comprising a front face and a rear face, a heat exchanger arranged vis-à-vis the rear face of said photovoltaic module, a fluid cooling circuit circulating in said heat exchanger so as to recover the calories of said photovoltaic module, said heat exchanger comprising a heat exchange zone disposed under said photovoltaic module and in which the cooling fluid flows, which fluid flows between an arrival zone and an evacuation zone; internal channels extending over the entire surface of the exchange zone.
    [0009] This invention is remarkable in that the heat exchange zone is formed by a double-walled honeycomb plate, which honeycomb plate consists of an upper wall and a lower wall between which are arranged cells, which cells are presented in the form of 30 adjacent channels, which are in fluid communication with the arrival and discharge areas.
    [0010] The use of such a honeycomb plate makes it possible to obtain a very light exchanger and thus easy to handle. Among other things, this honeycomb plate, in addition to reducing the cost price of the hybrid solar panel, improves the energy efficiency. Indeed, this type of honeycomb plate generally has very thin walls that promote heat exchange with the photovoltaic module with which it is associated. In addition, the presence of adjacent internal channels makes it possible to circulate a fluid under a pressure of up to 7 bars (0.7 MPa), the deformations of the exchanger being zero or at least negligible (less than 0.25 mm). under 3 bars (0.3 MPa)), thus improving the performance of the hybrid solar panel. Other advantageous features of the invention are listed below. Each of these features may be considered alone or in combination with the remarkable features defined above, and may be subject, where appropriate, to one or more divisional patent applications: - the entire upper wall of the the honeycomb may be flat, - the heat exchanger may be of polypropylene, - the inlet and outlet zones may be in the form of collectors in fluid communication with the internal channels of the honeycomb plate, said collectors being placed against the bottom wall of said honeycomb plate so that the upper wall of the latter remains flat over its entire surface, the collectors can be welded to the honeycomb plate at an opening made in the bottom wall of the plate alveolar, which opening is configured to fluidically communicate each channel with said collector, - each The collector may be provided with a non-angled connector facing the exterior of the panel, said connectors being offset relative to each other, the internal channels may have a width of between 4 mm and 6 mm. mm and a height of between 4 mm and 6 mm, the depth of the collectors may be greater than the height of the internal channels, the hybrid solar panel may be constituted by the successive stacking of the following elements, arranged on the front face. from the photovoltaic module to the lower wall of the exchanger: a layer or plate of transparent material defining the front face of the photovoltaic module, a first layer of encapsulating material in intimate contact with the layer or plate of material transparent, at least one photovoltaic element in intimate contact with the first layer of encapsulating material, a second layer of encapsulating material in intimate contact with at least one photovoltaic element, where the cellular plate in intimate contact with the second layer of encapsulating material, a layer or plate of insulating material in intimate contact with said cellular plate. The upper wall of the honeycomb plate may have a thickness of less than 1 mm; an additional insulating plate may be placed against the lower wall of the honeycomb plate; the additional insulating plate may be a honeycomb plate; The heat exchanger and the photovoltaic module can be held in place by a frame, said frame comprising pressure means so that the additional insulating plate is constrained against the lower wall of the honeycomb plate so that the entire surface of the The upper wall of the latter is pressed against the rear face of the photovoltaic module 3034592 7 - A gel layer may be placed between the heat exchange zone and the photovoltaic module. The invention also relates to a method of manufacturing the hybrid solar panel according to the invention comprising the steps of: - using a honeycomb plate whose channels open laterally at the ends of said plate, - plug the lateral ends of the plate in order to seal the internal channels, to make an opening at each lateral end of the bottom wall of the plate so that each said opening opens into each of the channels, to press the upper wall of the honeycomb plate against the back side of the photovoltaic module, 15 - keep the cellular plate in position against the photovoltaic module, - install a collector at each of the openings, which collectors respectively form an arrival zone and an evacuation zone, - connect the collectors to a cooling fluid supply circuit so that the fluid e flows from the arrival zone to the evacuation zone. The method may also include a step of holding the cellular plate in position against the photovoltaic module by means of a frame, said frame comprising pressing means for the additional insulating plate to be constrained against the bottom wall of the honeycomb plate. so that the entire surface of the upper wall of the latter is pressed against the rear face of the photovoltaic module.
    [0011] 3034592 8 Description of the figures. Other advantages and features of the invention will appear better on reading the description of a preferred embodiment which follows, with reference to the appended drawings, carried out as indicative and non-limiting examples and in which: FIG. 1 is a diagrammatic sectional representation of a hybrid solar panel according to the invention, FIG. 2 is a diagrammatic sectional representation of a hybrid solar panel according to the invention, in a variant embodiment. comprising a gel layer between the photovoltaic module and the heat exchanger, - Figure 3 is a sectional view along AA of the panel according to one of Figures 1 or 2, - Figure 4 is a schematic perspective view, of a honeycomb plate 15 used in the invention, - Figure 5a is a sectional view along BB of the honeycomb plate of Figure 4, - Figure 5b shows the plate of Figure 5a, on which the bottom wall has 5c shows the plate of FIG. 5b, associated with a collector, FIG. 5d shows the assembly of FIG. 5c, the collector being installed against the cellular plate, FIG. photovoltaic module associated with an exchanger according to the invention, - Figure 6b shows the photovoltaic module and the exchanger of Figure 6a associated with an insulating plate, - Figure 6c shows the assembly of Figure 6b held in position by a frame, so as to form a hybrid solar panel according to the invention, - Figure 7 is a schematic sectional representation of the different layers forming the photovoltaic module, - Figure 8 is a schematic view from below. a honeycomb plate according to the invention, the channels being plugged and the openings cut out, - Figure 9a is a schematic bottom view in perspective of a hybrid solar panel according to i nvention, 5 - Figures 9b and 9c are diagrammatic bottom perspective views of variants of the panel of Figure 9a. Preferred embodiments of the invention
    [0012] The solar panel P object of the invention is a hybrid panel, that is to say it is able to simultaneously produce electrical energy and thermal energy. It is intended to be used alone or in combination with other similar panels, so that the electrical and thermal energy it produces can be exploited by a dwelling or an installation. Referring to Figures 1 and 2, the solar panel P comprises a photovoltaic module 1 having a front face 12 and a rear face 11. The front face 12 is left free so that it can receive solar radiation. About 80% of the solar energy received is dissipated in the panel P. The presence of a heat exchanger 2 placed vis-à-vis the rear face 11 of the photovoltaic module 1 allows to recover the heat accumulated or dissipated in the photovoltaic module 1.
    [0013] In FIG. 7, the photovoltaic module 1 comprises at least one and advantageously several photovoltaic elements placed in a same plane. The latter are electrically connected together, in series or in parallel, and are encapsulated, for example in a thermoplastic polymer lb, lc such as ethylene vinyl acetate (EVA) or silicone to form the photovoltaic module 1. The front face 12 of the photovoltaic module 1 exposed to the radiation 3034592 is covered with a transparent plate Id, such as for example a glass plate. A layer 1a of electrical insulating material called "backsheet" is added to the rear face 11 of the photovoltaic module 1. This layer ensures, in addition to the electrical insulation, a sealing function between the photovoltaic module 1 and the photovoltaic module 1. heat exchanger 2. This layer can, for example, be a polyvinyl fluoride film, and prevents the rain and / or humidity of the ambient air to come into direct contact with the photovoltaic module 10 1 , thus avoiding any electrical problem, such as false contacts or short circuits. It is however possible to remove the layer 1a of electrical insulating material. In this particular case the rear face 11 is constituted by the encapsulation layer 1b. The sealing function and electrical insulation is then taken up by the heat exchanger 2, which then covers the entire surface of the photovoltaic module I. These various elements 1a, 1b, 1c, 1b, 1c are stacked in the form of a solar cell. sandwich and are held together by a hot rolling process. The exchanger 2 is located under the photovoltaic module 1 so as not to hinder the solar radiation. In the embodiment shown in FIG. 2, a layer 7 of pasty and / or malleable material is inserted between the rear face 11 of the photovoltaic module 1 and the upper face 21a of the heat exchanger 2. a pasty and / or malleable material 7 makes it possible to maintain the photovoltaic module 1 and the heat exchanger 2 in contact despite the possible deformations of the latter, while avoiding the presence of air between these two elements. The thickness of the layer 7 can vary from 0.1 mm to 1 cm, preferably less than 1 mm, so as to have a thin layer 7 allowing the heat to pass despite the fact of using a material thermal insulator. The material used is preferably a gel, but may also be in the form of a viscoelastic material, an adhesive, a polymer, or any other form suitable to the skilled person.
    [0014] With reference to FIG. 3, the heat exchanger 2 comprises three main zones: an inlet zone ZA of the cooling fluid, a heat exchange zone ZE and a discharge zone ZV of said fluid. The photovoltaic module 1 is preferably positioned vis-à-vis the exchange zone ZE but may also be at least partially above the ZA arrival and ZV discharge zones. The exchange zone ZE may for example represent from 10% to 100% of the surface of the photovoltaic module 1. The heat exchanger 2 is made of plastic material, preferably of polypropylene, but it may be made of polyethylene or of polymethyl methacrylate. , polyphenylene sulfide, polyphenylene oxide, polyphenylene ether, acrylonitrile butadiene styrene, or any other material suitable for the skilled person. These materials make it possible to sustainably resist corrosion generated by the cooling fluid, as well as temperatures up to 90 ° C. The exchanger 2 may also consist of a filled polymer, such as for example with glass fibers, thus making it possible to improve its rigidity. The cooling fluid, which is typically brine, circulates in the heat exchanger 2 to recover the calories from the photovoltaic module 1. It is routed through a supply circuit 40 and circulates always in the same direction in the exchanger 2, from the arrival zone ZA to the discharge zone ZV via the heat exchange zone ZE.
    [0015] The exchanger 2 is composed of a honeycomb plate 21 and collectors 3a, 3b. The collectors 3a, 3b respectively form the arrival ZA and ZV discharge zones, whereas the exchange zone ZE is constituted by the cellular plate 21. In FIGS. 4 and 5a, this latter is composed of a flat top wall 21a intended to be in contact with the rear face 11 of the photovoltaic module 1 and a bottom wall 21b. The upper 21a and lower 21b walls are preferably flat and parallel to each other. The surface of the plate 21 represents, for example, between 10% to 100% of the total area of the photovoltaic module 1. It preferably has dimensions (length and width) corresponding to those of the photovoltaic module 1, both of generally rectangular shape. . It has a length that can be between 150 cm and 400 cm, a width ranging from 50 cm to 300 cm, and a thickness ranging from 1 mm to 2 cm. It may for example be manufactured by DS Smith under the Akysun®, Akylux®, Akyplac® or Correx® brands, and obtained by an extrusion or molding process. In FIGS. 4 and 5a, channel-shaped cells 22 are disposed between the upper wall 21a and the lower wall 21b. The channels 22 have a square, rectangular, circular or oval, trapezoidal section. They are preferably rectilinear. The internal channels 22 are delimited by internal partition walls 21c which are perpendicular or substantially perpendicular to the upper 21a and lower 21b walls, so that said channels 22 are adjacent. Two internal channels 22 adjacent side by side and have a partition wall 21c in common. They are preferably parallel to each other but may also be nonparallel. These walls 21a and 21b have a thickness of between 0.4 mm and 10 mm, advantageously between 0.4 mm and 1.2 mm, preferably 0.8 mm. This small thickness makes it possible to obtain a good heat transfer between the photovoltaic module 1 and the cooling fluid which circulates in the channels 22. The internal walls 21c have a height that can vary from 1 mm to 2 cm, and a 3034592 13 thickness between 0.4 mm and 1.2 mm. The height of the internal channels 22 thus depends on the thickness of the plate 21 as well as the height of the inner partition walls 21c. It is between 1 mm and 2 cm, preferably 5 mm.
    [0016] The width of the internal channels 22 varies from 1 mm to 20 mm, advantageously from 1 mm to 10 mm, preferably 5 mm. Their height varies between 1 mm and 20 mm, preferably 5 mm. The width of the channels 22 is chosen so as to obtain negligible pressure drops and to favor the thermosiphon effect during the circulation of the cooling fluid between the arrival zone ZA and the evacuation zone ZV. The Applicant has surprisingly found that internal channels 22 having a square section of approximately 5 mm of coast, allowed to maintain a good thermosiphon effect between the arrival zone ZA and the ZV discharge zone.
    [0017] The use of a honeycomb plate 21 having internal channels 22 of dimensions such as those described in the preceding paragraph, makes it possible to reduce the volume, and therefore the weight of the fluid flowing in the hybrid solar panel P. In addition to the channels 22 adjacent present in the plate 21 allow 20 to withstand pressures up to 7 bar (0.7 MPa). The effects of fluid pressure in the channels 22 cancel each other out. The upper wall 21a of the plate 21 may possibly be deformed, these deformations being however limited or even absent because of the reduced dimensions of the channels 22.
    [0018] Since the plastic material in which the honeycomb plate 21 is formed is not naturally a good heat conductor, the wall 21a preferably has a minimum thickness so as not to slow the passage of heat between the photovoltaic module 1 and the cooling fluid. circulating in the heat exchange zone ZE. However, this thickness must be large enough to withstand the aging as well as the pressure stresses of the heat exchanger 2 and thus prevent any breakage. Wall 21a having a thickness of about 0.8 mm gives very good results. The bottom wall 21b may have a thickness greater than that of the wall 21a, thus making it possible to improve the rigidity of the panel P.
    [0019] The channels 22 allow the coolant to flow from the arrival zone ZA to the evacuation zone ZV. Referring to Figure 3, they each have an inlet 22a opening into the arrival zone ZA and an outlet 22b opening into the discharge zone ZV. The inlets 22a and 22b may be located at the lateral ends of the cellular plate 21, but they may also be offset from these lateral ends towards the center of said plate. The collectors 3a, 3b and the cellular plate 21 are preferably separate pieces. The length of the collectors 3a, 3b is preferably substantially similar to the width of the honeycomb plate 21 and can thus be between 50 cm and 300 cm. Their width can vary from 5 cm to 50 cm and their height from 1 mm to 2 cm. Preferably, the height of the collectors 3a, 3b is greater than that of the internal channels 22 so that their pressure drop is lower than that of the channels 22. Thus, when the cooling fluid arrives in the arrival zone ZA, it will first fill the latter before entering the channels 22. Similarly, the fluid will be able to evacuate without constraint in the ZV evacuation zone. The fluid will thus flow in the channels 22 in a homogeneous manner, without preferential circuit and in the entire heat exchange zone ZE.
    [0020] The collectors 3a, 3b are formed by thermoforming, injection, or extrusion. They are then preferably welded to the bottom wall 21b of the honeycomb plate 21 (FIG. 4a) so as to facilitate the installation as well as the transport of the solar panel P. This position makes it possible to stack the panels P optimally and thus to gain considerable space during their transport. However, they can be installed at each end of the plate 21, on the front face of the plate 21, or any position suitable for the skilled person. As can be seen in FIG. 4, the channels 22 initially open at the lateral ends 24a, 24b of the cellular plate 21. To form the heat exchanger 2, these ends 24a, 24b are previously plugged by a melting process. pressing inwardly of the plate 21, or by adding material and gluing and / or welding, or by laser, or by ultrasound, or by vibration, or by hot welding (mirror, hot blade, infrared).
    [0021] FIGS. 5a to 5d illustrate the steps enabling the collectors 3a, 3b to be placed against the cellular plate 21. As shown in FIGS. 8 and 5b, openings 23a, 23b are previously made in the bottom wall. 21b of the honeycomb plate 21. They are created by cutting out parts of the bottom wall 21b. These openings 23a, 23b are located at the clogged ends 24a, 24h, and may be slightly offset from the latter by a few millimeters. Each of the openings 23a, 23b has a rectangular shape which extends in the width of the plate 21, parallel to the lateral ends 24a, 24h and perpendicular to the longitudinal edges 26a, 26b of said plate. They are preferably carried out over the entire width of the plate 21, but may be positioned in any other position as soon as they open into each of the internal channels 22. They have a length of between 30 cm and 300 cm, and a width varying from 1 cm to 10 cm.
    [0022] Once these openings 23a, 23b are made, the collectors 3a, 3b can be reported (FIG Sc). They are placed against the bottom wall 21b of the honeycomb plate 21, opposite the openings 23a, 23b, so as to be in fluid communication with each of the channels 22. Thus positioned against the bottom wall 21b, the collectors 3a, 3b leave the upper wall 21a of the plate 21, completely flat. In fact, the entire surface of the upper wall 21a 3034592 16 is likely to be in contact with the rear face 11 of the photovoltaic module 1, which maximizes the heat exchange surface. They are then welded against the bottom wall 21b of the honeycomb plate 21. The weld 50 (FIG. 5d) can be carried out in different ways, for example by material supply, by laser welding, ultrasonic welding, hot-blade welding. or infrared, or vibration welding. The welding is preferably carried out by adding material to reinforce the welding zones which are areas of mechanical stress when the solar panel P is used under pressure. Welding is the preferred choice, but depending on the polymer used, the collectors 3a, 3b may also be glued or screwed against the honeycomb plate 21. In FIGS. 1, 2 and 3, the collectors 3a, 3b are provided with connection means 4a, 4b for connecting the heat exchanger 2 to a supply circuit 40 for cooling fluid. These connection means 4a, 4b may be connectors but may also be in any other form suitable to the skilled person. Depending on the dimensions of the collectors 3a, 3b used, they may have an internal diameter ranging from 8 mm to 30 mm. In this circuit 40, the fluid flows naturally from the discharge zone 20 ZV to the arrival zone ZA through the thermosiphon effect. However, this circuit 40 may comprise a pump 30 ensuring the circulation of the cooling fluid. The feed pump 30 may be, for example a piston pump or a diaphragm pump.
    [0023] Each connection means 4a, 4b can be made in the same room as the manifold 3a, 3b, and thus form a single piece which reduces any leakage of cooling fluid. They may, however, be separate parts which are subsequently installed on the collectors 3a, 3b by means of fixing means such as welding, or by gluing, or by screwing.
    [0024] The connection means 4a, 4b are pre-installed so as not to generate a counter slope liable to disturb the thermosiphon effect described above. Thus, they are preferably positioned so that the direction of flow of the cooling fluid goes from the bottom of the heat exchanger 2 upwards. The connection means 4a, 4b are advantageously arranged in the plane of the cellular plate 21 (Figure 9a, Figure 9c). However, they can also be arranged perpendicularly to the plate 21 (FIG. 9b). In the same way, these connection means 4a, 4b are preferably installed so as not to exceed the frame 6 (FIG. 9a), they may, however, extend beyond the frame 6 (FIG. 9c). The connection means 4a, 4b are preferably arranged diagonally with respect to each other so as to standardize the path of the fluid from the arrival zone ZA to the discharge zone ZV. However, they can be placed in any position suitable to those skilled in the art. FIGS. 6a to 6d show different stages of a manufacturing process of the solar panel P. FIG. 6a shows the introduction of the heat exchanger 2 against the rear face 11 of the photovoltaic module 1. In FIG. additional plate 8 is installed against the bottom wall 21b of the cellular plate 21. The plate 8 may be a layer of plastic such as polypropylene, polystyrene, polyurethane, or polyethylene. It can also be in the form of a rigid honeycomb panel. The plate 8 is present on the entire surface corresponding to the exchange zone (ZE) of the heat exchanger 2 with a length of between 150 cm and 400 cm, a width ranging from 50 cm to 300 cm. Its thickness is between 2 mm and 5 cm depending on the type of material used.
    [0025] In addition to its insulating function, the additional plate 8, when it is rigid, makes it possible to keep the heat exchanger 2 in place in the case where the panel P comprises a frame 6. This frame 6 is preferably aluminum or polymer, and is formed of U-shaped sections assembled together by welding 5 or by screwing. As illustrated in FIG. 6c, the frame 6 advantageously comprises pressure means 9 making it possible to constrain the plate 8 against the bottom wall 21b of the cellular plate 21. These pressure means 9 can take various forms, for example , calluses added to the frame 6, calles integrated in the frame 6, or even 10 squares. Thanks to the plate 8 and the pressure means 9, the upper wall 21a of the cellular plate 21 is plated in the most uniform manner possible against the rear face 11 of the photovoltaic module 1, which ensures an optimal thermal exchange. Preferably, the assembly consisting of the heat exchanger 2 and the plate 8, does not exceed the frame 6 so as to facilitate the transport and installation of the photovoltaic panel. The arrangement of the various elements and / or means and / or steps of the invention, in the embodiments described above, should not be understood as requiring such an arrangement in all implementations. In any case, it will be understood that various modifications may be made to these elements and / or means and / or steps, without departing from the spirit and scope of the invention. In particular: - There may or may not be a layer 7 between the photovoltaic module 1 and the heat exchanger 2, - the bottom wall 21b is not necessarily identical to the upper wall 21a, - the bottom wall 21b may have a thickness greater than 1 mm, the hybrid solar panel P may or may not comprise an additional plate 8, in this case the pressure means 9 are directly on the alveolar plate 21, the collectors 3a, 3b may be slightly inserted in openings 23a, 23b before welding 50, pressure means 9 may be different from those mentioned above. They can for example be in the form of bars connecting the longitudinal edges 26a, 26b of the plate 21, in the photovoltaic module 1, the glass Id can be replaced by a material called "frontsheet", transparent, flexible, resistant to ultraviolet, based, for example, fluoropolymer such as tetrafluoroethylene or ETFE, - layers lb, lc of encapsulating material are not necessarily the same. 15
    权利要求:
    Claims (16)
    [0001]
    CLAIMS1 Hybrid solar panel (P) comprising: - a photovoltaic module (1) comprising a front face (12) and a rear face (11), - a heat exchanger (2) disposed opposite the rear face ( 11) of said photovoltaic module (1), - a cooling fluid circulating in said heat exchanger (2) so as to recover the calories of said photovoltaic module (1), - said heat exchanger (2) comprising a heat exchange zone ( ZE) disposed under said photovoltaic module (1) and in which the cooling fluid flows, which fluid flows between an arrival zone (ZA) and an evacuation zone (ZV), - internal channels ( 22) extending over the entire surface of the exchange zone (ZE), characterized by the fact that the heat exchange zone (ZE) is formed by a double-walled honeycomb plate (21), which honeycomb plate ( 21) consists of an upper wall (21a) and a lower wall (21b). ) between which are arranged cells, which cells are in the form of adjacent internal channels (22), which are in fluid communication with the arrival (ZA) and discharge (ZV) zones.
    [0002]
    2. Hybrid solar panel (P) according to claim 1, characterized in that the entire upper wall (21a) of the honeycomb plate (21) is flat.
    [0003]
    3. Hybrid solar panel (P) according to one of claims 1 or 2, characterized in that the heat exchanger is polypropylene.
    [0004]
    4. hybrid solar panel (P) according to one of claims 1 to 3, characterized in that the arrival zone (ZA) and discharge zone (ZV) are in the form of collectors (3a, 3b) in fluid communication with the internal channels (22) of the honeycomb plate (21), said collectors (3a, 3b) being placed on the bottom wall (21b) of said honeycomb plate (21) so that the upper wall ( 21a) of the latter remains flat over its entire surface. 5
    [0005]
    5. Hybrid solar panel (P) according to claim 4, characterized in that each collector (3a, 3b) is welded to the honeycomb plate (21) at an opening (23a, 23b) made in the bottom wall ( 21b) of the honeycomb plate (21), which opening (23a, 23b) is configured to fluidically communicate each channel (22) with said manifold (3a, 3b).
    [0006]
    6. Hybrid solar panel (P) according to one of claims 4 or 5, characterized in that each collector (3a, 3b) is equipped with a connector (4a, 4b) not bent oriented towards the outside of the panel (P), said connectors (4a, 4b) being offset with respect to each other.
    [0007]
    7. Hybrid solar panel (P) according to one of claims 4 to 6, characterized in that the depth of the collectors (3a, 3b) is greater than the height of the internal channels (22). 20
    [0008]
    8. Hybrid solar panel (P) according to one of claims 1 to 7, characterized in that it consists of the successive stack of the following elements, arranged from the front face (12) of the photovoltaic module (1) to the lower wall (21b) of the exchanger (2): a layer or plate of a transparent material (1d) defining the front face (12) of the photovoltaic module (1), a first layer of a material encapsulant (1c) in intimate contact with the layer or plate of transparent material (1d), - at least one photovoltaic element in intimate contact with the first layer of encapsulating material (1c), - a second layer of encapsulating material ( 1 b) in intimate contact with at least one photovoltaic element, - the honeycomb plate (21) in intimate contact with the second layer of encapsulating material (1b), - a layer or plate of an insulating material (8) in intimate contact with said honeycomb plate (21). 5
    [0009]
    9. hybrid solar panel (P) according to one of claims 1 to 8, characterized in that the inner channels (22) have a width of between 4 mm and 6 mm and a height of between 4 mm and 6 mm, 10
    [0010]
    10. Hybrid solar panel (P) according to one of claims 1 to 9, characterized in that the upper wall (21a) of the cellular plate (21) has a thickness less than 1 mm.
    [0011]
    11. Hybrid solar panel (P) according to one of claims 1 to 10, characterized in that an additional insulating plate (8) is placed against the bottom wall (21b) of the honeycomb plate (21).
    [0012]
    12. Hybrid solar panel (P) according to claim 11, characterized in that the additional insulating plate (8) is a honeycomb plate. 20
    [0013]
    13. Hybrid solar panel (P) according to one of claims 11 or 12, characterized in that the heat exchanger (2) and the photovoltaic module (1) are held in place by a frame (6), said frame ( 6) comprising pressure means for the additional insulating plate (8) to be clamped against the bottom wall (21b) of the honeycomb plate (21) so that the entire surface of the upper wall (21a) thereof is pressed against the rear face (11) of the photovoltaic module (1).
    [0014]
    Hybrid solar panel (P) according to one of Claims 1 to 13, characterized in that a layer (7) of gel is placed between the heat exchange zone (ZE) and the photovoltaic module (1). . 3034592 23
    [0015]
    The method of manufacturing the hybrid solar panel (P) according to claim 1 comprising the steps of: - using a honeycomb plate (21) whose channels (22) open laterally at the ends of said plate (21), - plug the lateral ends (24a, 24b) of the honeycomb plate (21) so as to close the internal channels (22), - make an opening (23a, 23b) at each lateral end (24a, 24b) of the lower wall (21b) of the plate (21) so that each said opening (23a, 23b) opens into each of the channels (22), 10 - press the upper wall (21a) of the honeycomb plate (21) against the face rear (11) of the photovoltaic module (1), - hold the cellular plate (21) in position against the photovoltaic module (1), - install a collector (3a, 3b) at each of the openings (23a, 23b) , which collectors (3a, 3b) respectively form an arrival zone (ZA) and a no discharge zone (ZV), - connect the collectors (3a, 3b) to a cooling fluid supply circuit (40) so that the fluid flows from the arrival zone (ZA) to to the evacuation zone (ZV). 20
    [0016]
    16. Manufacturing method according to claim 15 wherein the honeycomb plate (21) is held in position against the photovoltaic module (1) by means of a frame (6), said frame (6) comprising pressure means for that the additional insulating plate (8) is constrained against the bottom wall (21b) of the honeycomb plate (21) so that the entire surface of the upper wall (21a) of the latter is pressed against the rear face (11) of the photovoltaic module (1)
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    同族专利:
    公开号 | 公开日
    EP3408869A1|2018-12-05|
    WO2016156764A1|2016-10-06|
    PT3408869T|2021-10-14|
    US20190181802A1|2019-06-13|
    AU2016239987B2|2021-07-29|
    AU2016239987A1|2019-02-28|
    EP3408869B1|2021-07-14|
    DK3408869T3|2021-10-11|
    ES2890811T3|2022-01-24|
    FR3034592B1|2018-03-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE20010880U1|2000-06-19|2001-10-31|Bekon Umweltschutz & Energiete|Hybrid solar collector|
    DE10102918A1|2001-01-23|2002-07-25|Andreas Schultze-Kraft|Compound panel for utilization of solar energy comprises a carrier layer, a heat exchange layer in the form of a ribbed plate, and a layer with integrated solar cells and metal conductors|
    WO2005028967A1|2003-09-19|2005-03-31|Trimboli Longuetto Antonino Ad|Thermal shield for the air-conditioning of buildings|
    DE102005024516A1|2005-05-27|2006-11-30|Dittrich, Wolf-Peter, Dipl.-Ing.|Solar energy extraction device, has solar module with cells whose optically active faces are aligned in similar manner, and cooling unit which is heat conducting and connected with rear side of cells or rear side of modules|
    WO2008003109A2|2006-07-04|2008-01-10|Hans-Peter Bierbaumer|Solar module|
    WO2012110758A2|2011-02-16|2012-08-23|Laidler Paul Anthony|Solar energy device|
    CH517279A|1969-12-18|1971-12-31|Von Roll Ag|Heat exchanger|
    ZA822347B|1981-07-30|1983-03-30|Burton Energy & Solar Tech|Solar apparatus and related methods|
    WO2010129878A2|2009-05-08|2010-11-11|7Solar Technologies, Inc.|Solar energy systems|
    EP2284910B1|2009-08-12|2016-03-02|Roth Werke GmbH|Solar absorber|
    US20120024283A1|2010-07-30|2012-02-02|Skillman Dale N|Hybrid Solar Thermal and Photovoltaic Collector|
    FR2967817B1|2010-11-22|2013-08-16|Solaire 2G|HYBRID SOLAR PANEL.|FR3074875B1|2017-12-08|2020-04-17|Dualsun|FLUIDIC CONNECTION DEVICE FOR HEAT EXCHANGERS OF AT LEAST TWO HYBRID SOLAR PANELS|
    FR3081543B1|2018-05-22|2020-09-11|Loic Tachon|HEAT EXCHANGER|
    FR3102318A1|2019-10-17|2021-04-23|Dualsun|installation comprising a connector for the fluidic connection of a heat exchanger of at least one hybrid solar panel|
    法律状态:
    2016-04-29| PLFP| Fee payment|Year of fee payment: 2 |
    2016-10-07| PLSC| Publication of the preliminary search report|Effective date: 20161007 |
    2017-04-28| PLFP| Fee payment|Year of fee payment: 3 |
    2018-01-05| CA| Change of address|Effective date: 20171127 |
    2018-01-05| CD| Change of name or company name|Owner name: DUALSUN, FR Effective date: 20171127 |
    2018-05-02| PLFP| Fee payment|Year of fee payment: 4 |
    2019-04-30| PLFP| Fee payment|Year of fee payment: 5 |
    2020-04-29| PLFP| Fee payment|Year of fee payment: 6 |
    2021-04-26| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1552907|2015-04-03|
    FR1552907A|FR3034592B1|2015-04-03|2015-04-03|PHOTOVOLTAIC AND THERMAL SOLAR PANEL|FR1552907A| FR3034592B1|2015-04-03|2015-04-03|PHOTOVOLTAIC AND THERMAL SOLAR PANEL|
    AU2016239987A| AU2016239987B2|2015-04-03|2016-04-04|Photovoltaic and thermal solar panel|
    DK16720454.4T| DK3408869T3|2015-04-03|2016-04-04|PHOTOVOLTAIC AND THERMAL SOLAR PANEL|
    PCT/FR2016/050765| WO2016156764A1|2015-04-03|2016-04-04|Photovoltaic and thermal solar panel|
    PT167204544T| PT3408869T|2015-04-03|2016-04-04|Photovoltaic and thermal solar panel|
    ES16720454T| ES2890811T3|2015-04-03|2016-04-04|Photovoltaic and thermal solar panel|
    EP16720454.4A| EP3408869B1|2015-04-03|2016-04-04|Photovoltaic and thermal solar panel|
    US16/090,924| US20190181802A1|2015-04-03|2016-04-04|Photovoltaic and thermal solar panel|
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