Photovoltaic system utilizing waste heat from photovoltaic modules

Abstract

The utility model discloses a photovoltaic system that utilizes the heat dissipation of a photovoltaic module for waste heat utilization, and relates to photovoltaic technology, including a first heat exchange coil, a second working fluid storage, and a second heat exchange coil arranged in the second working fluid storage, a circulating pump is connected between the first heat exchange coil and the second heat exchange coil, the first heat exchange coil is installed on the back of the photovoltaic module, a width side of the first heat exchange coil is attached to the back of the photovoltaic module, and a heat absorbing fin is connected to the outer wall of the first heat exchange coil. The first heat exchange coil and the heat absorbing fin absorb the heat dissipation of the photovoltaic module and the light and heat waste heat on the back, and heat exchange and heat the first working fluid liquid heat conducting medium once; the circulating pump transports the heated first working fluid liquid heat conducting medium to the second heat exchange coil, and exchanges heat with the second working fluid liquid heat conducting medium. The utility model can utilize the waste heat on the back of the photovoltaic module, and recycle it through the first heat exchange coil to provide additional energy output.

Description

[Technical field]

[0001] The utility model belongs to the technical field of photovoltaics, and in particular relates to a photovoltaic system which utilizes the heat dissipation of photovoltaic components to utilize waste heat. [Background technology]

[0002] The prior art has studied and designed the heat dissipation and utilization of solar thermal waste heat of photovoltaic modules. Referring to the Chinese utility model patent with the authorization announcement number CN 220732724 U, a heat dissipation photovoltaic module and a thermal energy system are disclosed, which relate to the field of photovoltaic heat pump technology and are used to avoid the temperature increase of photovoltaic modules during operation, improve the power generation efficiency of photovoltaic modules, and extend the service life of photovoltaic modules. The heat dissipation photovoltaic module includes a photovoltaic module body, and the heat dissipation photovoltaic module also includes a heat exchange layer and a first heat exchange box. The heat exchange layer is arranged on the backlight surface of the photovoltaic module body, which is used to absorb the heat of the photovoltaic module body. The heat exchange layer is provided with a heat exchange flow channel for accommodating the first heat exchange medium. The first heat exchange box is arranged on one side edge of the photovoltaic module body. The first heat exchange box has a first inlet end and a first outlet end that are interconnected, which are used to circulate the second heat exchange medium. A part of the heat exchange layer is located in the first heat exchange box, which is used to exchange heat between the first heat exchange medium and the second heat exchange medium to cool the photovoltaic module body. However, the existing technology focuses on using the heat directly transferred from the photovoltaic module to the heat exchange layer, and the heat exchange layer completely covers the back of the photovoltaic module, resulting in high cost and failure to effectively utilize the higher temperature air heat near the back of the photovoltaic module. [Contents of the utility model]

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a photovoltaic system that utilizes the heat dissipation of photovoltaic modules to utilize waste heat, reduce the cost of heat dissipation devices, and solve the problem of low heat dissipation utilization rate of photovoltaic modules.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a photovoltaic system that utilizes the heat dissipation of photovoltaic components for waste heat utilization, including a photovoltaic component installed on a photovoltaic bracket, the photovoltaic system also includes a first heat exchange coil with a first working fluid liquid heat-conducting medium inside, a second working fluid reservoir storing a second working fluid liquid heat-conducting medium, and a second heat exchange coil arranged in the second working fluid reservoir, the first heat exchange coil is connected to the second heat exchange coil and a circulating pump is connected between the first heat exchange coil and the second heat exchange coil, the first heat exchange coil is installed on the photovoltaic component On the back side, the cross-section of the first heat exchange coil is a rectangular structure, and the width of the first heat exchange coil is attached to the back side of the photovoltaic module. The outer wall of the first heat exchange coil is connected with a heat-absorbing fin. The first heat exchange coil and the heat-absorbing fin absorb the heat of the photovoltaic module and the residual heat of light and heat on the back side, and heat the first working fluid liquid heat-conducting medium once; the circulating pump transports the heated first working fluid liquid heat-conducting medium to the second heat exchange coil, exchanges heat with the second working fluid liquid heat-conducting medium, and the cooled first working fluid liquid heat-conducting medium re-enters the first heat exchange coil.

[0005] Preferably, the first heat exchange coil is S-shaped and extends on the back side of the photovoltaic module.

[0006] Preferably, the first heat exchange coil and the heat absorbing fins are both made of aluminum material, and the two are welded into one.

[0007] Preferably, the heat absorbing fins are U-shaped and wrapped around the outside of the first heat exchange coil; and / or the first heat exchange coil and the heat absorbing fins are provided with a heat absorbing coating.

[0008] Preferably, the first heat exchange coil extends in the transverse direction, and the first heat exchange coils on the back sides of two laterally adjacent photovoltaic modules are connected via a U-shaped bridge portion.

[0009] Preferably, the photovoltaic support includes a longitudinal beam and a cross beam vertically and cross-fixed on the longitudinal beam, the photovoltaic assembly is installed on the cross beam, and the first heat exchange coil is connected to the cross beam by a fixing clamp.

[0010] Preferably, the fixing fixture comprises a first clamping block and a second clamping block clamped and fixed on both sides of the width of the first heat exchange coil, and a vertical fastener fixing the first clamping block and the second clamping block to the crossbeam.

[0011] Preferably, a transverse fastener is connected between the first clamping block and the second clamping block.

[0012] Preferably, the cross beam is U-steel, and the first clamp block and the second clamp block include a support plate supported on the U-steel mouth, an upper clamping plate and a lower connecting plate perpendicular to the support plate, and the lower connecting plate is slidably arranged on the inner side of the U-steel mouth, and the upper clamping plates on the first clamp block and the second clamp block are connected by transverse fasteners, and the support plate is connected to the vertical fasteners.

[0013] Preferably, the transverse fasteners and the vertical fasteners are fastening bolts; and / or the first clamping block and the second clamping block are zinc-aluminum-magnesium alloy profiles.

[0014] The utility model adopts the above technical solution and has the following beneficial effects:

[0015] 1. The first heat exchange coil is installed on the back of the photovoltaic module, mainly absorbing the direct heat dissipation on the back of the photovoltaic module to heat the first working fluid liquid heat-conducting medium inside the first heat exchange coil; and the first heat exchange coil is a rectangular tube, one side of which is attached to the back of the photovoltaic module and the side wall is connected with a heat-absorbing fin. On the one hand, there is no need to cover the front and back of the photovoltaic module with the first heat exchange coil, thereby reducing the cost of the heat dissipation device; on the other hand, the heat-absorbing fin mainly absorbs the light and heat waste heat on the back of the photovoltaic module, and transfers the heat to the first working fluid liquid heat-conducting medium inside the first heat exchange coil. Thus, the heat dissipation of the photovoltaic module and the light and heat waste heat on the back can be maximized by combining the first heat exchange coil and the heat-absorbing fin. Therefore, the heat dissipation effect of the photovoltaic module can be effectively improved, its temperature can be reduced, and the efficiency of photovoltaic power generation can be improved. At the same time, the system can also utilize the waste heat on the back of the photovoltaic module and recycle it through the first heat exchange coil to provide additional energy output, which has a good complementary effect with photovoltaic power generation to avoid waste of resources.

[0016] 2. The first heat exchange coil is extended in an S shape on the back of the photovoltaic module, thereby increasing the distribution area of ​​the first heat exchange coil. At the same time, the space in the middle of the first heat exchange coil is mainly used by heat-absorbing fins to absorb the heat dissipation and residual heat of the photovoltaic module, so as to absorb the heat dissipation of the photovoltaic module to the maximum extent and improve the heat utilization efficiency.

[0017] 3. As aluminum has good thermal conductivity, the first heat exchange coil and the heat absorbing fins are both made of aluminum and are welded together for easy assembly.

[0018] 4. Since the heat-absorbing fins are U-shaped and wrapped around the outside of the first heat exchange coil, except for one side that is attached to the back of the photovoltaic module, the other sides are connected to the heat-absorbing fins, so that the heat-absorbing fins are used to absorb heat to the maximum extent and heat the first working fluid liquid heat-conducting medium in the first heat exchange coil; and the heat-absorbing coating of the first heat exchange coil and the heat-absorbing fins improves the heat absorption effect.

[0019] 5. The first heat exchange coils on the back of two laterally adjacent photovoltaic modules are connected via a U-shaped bridge portion, so that the U-shaped bridge portion spans across the frame of the photovoltaic module and connects the first heat exchange coils on the back of the two photovoltaic modules.

[0020] 6. The first heat exchange coil is connected to the crossbeam by a fixing fixture. In this way, the first heat exchange coil is fixed by the crossbeam of the photovoltaic bracket, and then the photovoltaic module is installed, so that the back of the photovoltaic module can fit the first heat exchange coil, which will not change the normal installation and fixation of the photovoltaic module.

[0021] 7. The first clamp block and the second clamp block are fixed to the crossbeam by vertical fasteners, and a transverse fastener is connected between the first clamp block and the second clamp block, so that the first heat exchange coil can be fixed by a fixing fixture.

[0022] 8. The crossbeam is U-steel, wherein the first clamp and the second clamp include a support plate supported on the U-steel mouth, an upper clamping plate and a lower connecting plate perpendicular to the support plate, the lower connecting plate is slidably arranged on the inner side of the U-steel mouth, the upper clamping plates on the first clamp and the second clamp are connected by transverse fasteners, the support plate is connected to the vertical fasteners, and the crossbeam structure is used to combine the upper side surface of the first heat exchange coil to form an installation surface for installing the photovoltaic component, so that the back of the photovoltaic component fits with the upper side surface of the first heat exchange coil after installation.

[0023] 9. The first clamping block and the second clamping block are made of zinc-aluminum-magnesium alloy profiles, which are not only high in strength but also not easy to rust, have a long service life and are relatively low in cost.

[0024] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings.

Brief Description of the Drawings

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the structure of a photovoltaic system that utilizes the heat dissipation of photovoltaic modules to utilize waste heat according to the utility model;

[0027] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0028] Figure 3 is an exploded structural diagram of the first heat exchange coil, the fixing fixture and the crossbeam;

[0029] Figure 4 It is a structural diagram of the first heat exchange coil, the fixing fixture and the crossbeam after assembly;

[0030] Figure numerals: photovoltaic bracket 1, photovoltaic assembly 100, cross beam 11, longitudinal beam 12, column 13, diagonal brace 14, heat dissipation and waste heat utilization assembly 2, first heat exchange coil 21, heat absorption fin 211, U-shaped bridge portion 212, second heat exchange coil 22, fixing clamp 23, fixing clamp block 231, support plate 2311, upper clamping plate 2312, lower connecting plate 2313, transverse fastener 232, vertical fastener 233, second working fluid storage 24, circulating pump 25. [Specific implementation method]

[0031] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0032] Those skilled in the art will appreciate that, in the absence of conflict, the features in the following embodiments and implementations may be combined with each other.

[0033] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the following words indicating orientation or positional relationship, such as "upper", "lower", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0036] like Figures 1 to 4As shown, this embodiment provides a photovoltaic system that utilizes the heat dissipation of photovoltaic components to utilize waste heat, including a photovoltaic component 100 installed on a photovoltaic bracket 1 and a heat dissipation and waste heat utilization component 2, the heat dissipation and waste heat utilization component 2 includes a first heat exchange coil 21 with a first working fluid liquid heat conductive medium inside, a second working fluid storage 24 storing a second working fluid liquid heat conductive medium, and a second heat exchange coil 22 arranged in the second working fluid storage, the first heat exchange coil 21 is connected to the second heat exchange coil 22, and a circulation pump 25 is connected between the first heat exchange coil 21 and the second heat exchange coil 22.

[0037] Among them, the first heat exchange coil 21 is installed on the back of the photovoltaic component, and the cross-section of the first heat exchange coil 21 is a rectangular structure. The width of the first heat exchange coil 21 is attached to the back of the photovoltaic component and the side wall is connected with a heat-absorbing fin 211. The first heat exchange coil 21 and the heat-absorbing fin 211 absorb the heat dissipation of the photovoltaic component 100 and the residual heat of light and heat on the back, and heat the first working fluid liquid heat-conducting medium once; the circulating pump 25 transports the heated first working fluid liquid heat-conducting medium to the second heat exchange coil 22, exchanges heat with the second working fluid liquid heat-conducting medium, and the cooled first working fluid liquid heat-conducting medium re-enters the first heat exchange coil.

[0038] The first heat exchange coil is installed on the back of the photovoltaic module, and mainly absorbs the direct heat dissipation on the back of the photovoltaic module to heat the first working fluid liquid heat-conducting medium inside the first heat exchange coil; and the first heat exchange coil is a rectangular tube, and its width and one side are attached to the back of the photovoltaic module and the side wall is connected with a heat-absorbing fin. On the one hand, there is no need to cover the front and back of the photovoltaic module with the first heat exchange coil, which reduces the cost of the heat dissipation device; on the other hand, the heat-absorbing fin mainly absorbs the light and heat waste heat on the back of the photovoltaic module, and transfers the heat to the first working fluid liquid heat-conducting medium inside the first heat exchange coil. Therefore, the heat dissipation of the photovoltaic module and the light and heat waste heat on the back can be maximized by combining the first heat exchange coil and the heat-absorbing fin. Therefore, it can effectively improve the heat dissipation effect of the photovoltaic module, reduce its temperature, and improve the efficiency of photovoltaic power generation. At the same time, the system can also utilize the waste heat on the back of the photovoltaic module and recycle it through the first heat exchange coil to provide additional energy output, which has a good complementary effect with photovoltaic power generation to avoid waste of resources.

[0039] It is understandable that the first working fluid liquid heat-conducting medium can be ethanol, or water, and the second working fluid liquid heat-conducting medium can be water, and the heated water can be used as hot water, heating, or heat pump. Of course, the heat of hot water can also be used to generate electricity.

[0040] In this embodiment, the first heat exchange coil 21 extends in an S shape on the back of the photovoltaic module. Specifically, the first heat exchange coil extends in the transverse direction, including a longitudinal section arranged side by side in the transverse direction and a transverse section connecting two adjacent longitudinal sections, and is coiled in an S shape as a whole, so that while increasing the distribution area of ​​the first heat exchange coil, the space in the middle of the first heat exchange coil is mainly used by the heat absorbing fins to absorb the heat dissipation and residual heat of the photovoltaic module, so as to absorb the heat dissipation of the photovoltaic module to the maximum extent and improve the heat utilization efficiency. Of course, the first heat exchange coil can also be coiled in other forms.

[0041] In order to improve the effect of heat dissipation of the photovoltaic module and absorption of the residual heat of light and heat on the back, the first heat exchange coil 21 and the heat absorbing fins 211 are both made of aluminum, and the first heat exchange coil 21 and the heat absorbing fins 211 are provided with a heat absorbing coating. The aluminum material has a good thermal conductivity, and the heat absorbing coating improves the heat absorption effect. The first heat exchange coil and the heat absorbing fins are welded together, wherein the heat absorbing fins are U-shaped and wrapped on the outside of the first heat exchange coil, so that except for one side that is attached to the back of the photovoltaic module, the other sides are connected to the heat absorbing fins, so as to maximize the use of the heat absorbing fins to absorb heat and heat the first working fluid liquid heat transfer medium in the first heat exchange coil.

[0042] It is understandable that the first heat exchange coil 21, the second heat exchange coil 22, and the heat absorbing fins 211 may be made of copper material in addition to aluminum material.

[0043] Since a photovoltaic system is usually composed of a plurality of photovoltaic modules arranged in a rectangular array, and the plurality of photovoltaic modules share the second working fluid storage 24, the second heat exchange coil 22 and the circulation pump 25, the first heat exchange coils 21 of the plurality of photovoltaic modules need to be connected. Figure 2 As shown, the first heat exchange coils on the back of two laterally adjacent photovoltaic modules are connected via a U-shaped bridge portion 212, so that the U-shaped bridge portion 212 spans the photovoltaic module frame while connecting the first heat exchange coils on the back of the two photovoltaic modules.

[0044] Since the first heat exchange coil and the second heat exchange coil are not directly connected but connected through an intermediate pipeline, the first heat exchange coils of two longitudinally adjacent rows of photovoltaic modules can be directly connected to the intermediate pipeline, or connected through a bridge pipe, and then one of them can be connected to the intermediate pipeline.

[0045] Reference to existing technology and combined Figure 1As shown, the photovoltaic support 1 includes a longitudinal beam 12, a cross beam 11 vertically cross-fixed on the longitudinal beam, the photovoltaic module is installed on the cross beam, and the first heat exchange coil 21 is connected to the cross beam by a fixing fixture 23. In addition, the longitudinal beam 12 is supported on the column 13. When the distance between two adjacent columns in the longitudinal direction is large, a diagonal brace 14 can be set between the column 13 and the longitudinal beam 12, and the two ends of the diagonal brace 14 are respectively connected to the column and the longitudinal beam through a hinge seat.

[0046] The fixing fixture 23 includes fixing blocks 231 clamped and fixed on both sides of the width of the first heat exchange coil and vertical fasteners 233 fixing the fixing blocks to the crossbeam. The fixing blocks 231 on both sides can be named as the first clamp block and the second clamp block, and a transverse fastener 232 is connected between the first clamp block and the second clamp block. In this way, the first heat exchange coil is fixed by using the crossbeam of the photovoltaic support, and then the photovoltaic module is installed, so that the back of the photovoltaic module can be attached to the first heat exchange coil, and the normal installation and fixation of the photovoltaic module will not be changed.

[0047] Specifically, the crossbeam 11 is U-steel, and the fixed clamp block 231 includes a support plate 2311 supported on the U-steel mouth, an upper clamping plate 2312 perpendicular to the support plate, and a lower connecting plate 2313, wherein the lower connecting plate is slidably arranged inside the U-steel mouth, and the upper clamping plates on the first clamp block and the second clamp block are connected by a transverse fastener 232, and the support plate 2311 is connected to the vertical fastener 233. The support plate 2311 is provided with supporting parts on both sides of the upper clamping plate 2312, and the upper surface of the inner supporting part supports the bottom wall of the first heat exchange coil. The crossbeam structure is used to combine the upper side surface of the first heat exchange coil to form an installation surface for installing the photovoltaic module, and also to make the back of the photovoltaic module fit with the upper side surface of the first heat exchange coil after installation.

[0048] Preferably, the transverse fasteners 232 and the vertical fasteners 233 are fastening bolts. The lower connecting plate 2313 is provided with a transverse connecting hole, and the transverse fastening bolts pass through the transverse connecting hole and tighten the nuts, so that the lower connecting plates of the two fixed clamps slide inside the U-steel mouth and reduce the spacing, so that the upper clamping plates of the two fixed clamps clamp the length side surfaces of the first heat exchange coil. Of course, the length side surfaces of the first heat exchange coil and the upper clamping plate are not provided with heat absorbing fins. The support plate 2311 is provided with a vertical connecting hole, and the bottom wall of the crossbeam is provided with a through hole. The vertical fastening bolts pass through the vertical connecting hole and the through hole and tighten the nuts, and the support plate presses the crossbeam to fix the fixed clamps to the crossbeam.

[0049] Preferably, the first clamping block and the second clamping block are made of zinc-aluminum-magnesium alloy profiles, which are not only high in strength but also not prone to rust, have a long service life and are relatively low in cost.

[0050] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A photovoltaic system that utilizes waste heat from photovoltaic modules, comprising a photovoltaic module mounted on a photovoltaic support, characterized in that: The photovoltaic system also includes a first heat exchange coil with a first working fluid liquid heat-conducting medium inside, a second working fluid storage device storing a second working fluid liquid heat-conducting medium, and a second heat exchange coil arranged in the second working fluid storage device. The first heat exchange coil is connected to the second heat exchange coil, and a circulation pump is connected between the first heat exchange coil and the second heat exchange coil. The first heat exchange coil is installed on the back of the photovoltaic module. The cross-section of the first heat exchange coil is a rectangular structure. The width side of the first heat exchange coil is attached to the back of the photovoltaic module. The outer wall of the first heat exchange coil is connected to a heat-absorbing fin. The first heat exchange coil and the heat-absorbing fin absorb the heat dissipation of the photovoltaic module and the residual heat of light and heat on the back, and heat exchange and heat the first working fluid liquid heat-conducting medium once. The circulation pump transports the heated first working fluid liquid heat-conducting medium to the second heat exchange coil to exchange heat with the second working fluid liquid heat-conducting medium. The cooled first working fluid liquid heat-conducting medium re-enters the first heat exchange coil.

2. A photovoltaic system for utilizing waste heat by dissipating heat from photovoltaic modules according to claim 1, characterized in that: The first heat exchange coil is in an S shape and extends on the back side of the photovoltaic module.

3. A photovoltaic system for utilizing waste heat by dissipating heat from photovoltaic modules according to claim 1, characterized in that: The first heat exchange coil and the heat absorbing fins are both made of aluminum material, and the two are welded into one.

4. A photovoltaic system for utilizing waste heat by dissipating heat from photovoltaic modules according to claim 1, characterized in that: The heat absorbing fins are U-shaped and wrapped around the outside of the first heat exchange coil; and / or the first heat exchange coil and the heat absorbing fins are provided with a heat absorbing coating.

5. A photovoltaic system for utilizing waste heat by dissipating heat from photovoltaic modules according to claim 1, characterized in that: The first heat exchange coils extend in the transverse direction, and the first heat exchange coils on the backs of two laterally adjacent photovoltaic modules are connected via a U-shaped bridge portion.

6. A photovoltaic system for utilizing waste heat by dissipating heat from photovoltaic modules according to claim 1, characterized in that: The photovoltaic support comprises a longitudinal beam and a cross beam vertically and cross-fixed on the longitudinal beam. The photovoltaic assembly is mounted on the cross beam, and the first heat exchange coil is connected to the cross beam by a fixing fixture.

7. A photovoltaic system for utilizing waste heat by dissipating heat from photovoltaic modules according to claim 6, characterized in that: The fixing fixture comprises a first clamping block and a second clamping block clamped and fixed on both sides of the width of the first heat exchange coil, and a vertical fastener fixing the first clamping block and the second clamping block to the crossbeam.

8. A photovoltaic system for utilizing waste heat by dissipating heat from photovoltaic modules according to claim 7, characterized in that: A transverse fastener is connected between the first clamping block and the second clamping block.

9. A photovoltaic system for utilizing waste heat by dissipating heat from photovoltaic modules according to claim 8, characterized in that: The crossbeam is U-steel, and the first clamp block and the second clamp block include a support plate supported on the U-steel mouth, an upper clamping plate and a lower connecting plate perpendicular to the support plate, and the lower connecting plate is slidably arranged on the inner side of the U-steel mouth. The upper clamping plates on the first clamp block and the second clamp block are connected by transverse fasteners, and the support plate is connected to the vertical fasteners.

10. A photovoltaic system for utilizing waste heat by dissipating heat from photovoltaic modules according to claim 9, characterized in that: The transverse fasteners and the vertical fasteners are fastening bolts; and / or the first clamping block and the second clamping block are zinc-aluminum-magnesium alloy profiles.

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