Photovoltaic fixed support system and photovoltaic building roof

Abstract

The present application relates to a photovoltaic fixed support system and a photovoltaic building roof, including a fixed support and a waterproof structure, wherein the first fixing member includes a first fixing plate and a second fixing plate, and the waterproof mechanism includes a first water guide groove and a second water guide groove. The first water guide groove and the second water guide groove are fixed to the fixed support, and finally the photovoltaic component is fixed to the connecting member on the first water guide groove by a middle pressure block, and the structure to be fixed is clamped by a clamping space formed by the first fixing plate and the second fixing plate, so that the photovoltaic component is fixed to the structure to be fixed, thereby avoiding damage to the roof by using self-tapping screws. In addition, the drainage of the photovoltaic component is achieved by the first water guide groove and the second water guide groove connected to the first water guide groove, which can avoid excessive water accumulation and damage to the photovoltaic component.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic equipment, and in particular to a photovoltaic fixed support system and a photovoltaic building roof. Background Art

[0002] At present, photovoltaic modules can be installed on the roof of the building structure to achieve photovoltaic building integration. The existing photovoltaic building integration support system for color steel tile roofs uses a "J"-shaped support steel plate and color steel tiles to connect through self-tapping screws.

[0003] Although the self-tapping screw connection method has achieved the integration of the photovoltaic system and the factory roof to a certain extent, it will inevitably cause a certain degree of damage to the color steel tile roof. Although waterproof glue is used to seal the damaged surface during the construction process, the waterproof glue will gradually age over time, which may cause water leakage on the roof. Once this happens, the support system needs to be reinstalled and glued, which will not only consume a lot of manpower and material resources, but may also affect the normal operation and work efficiency of the photovoltaic system. Utility Model Content

[0004] Based on this, it is necessary to provide a photovoltaic fixed bracket system to address the problem that the installation structure of the photovoltaic system in the prior art may damage the roof and cause roof leakage.

[0005] In a first aspect, an embodiment of the present application provides a photovoltaic fixing bracket system, wherein the photovoltaic fixing bracket system is used to fix a photovoltaic module to a structure to be fixed on a building roof, and comprises:

[0006] A fixing bracket, wherein the fixing bracket is connected to a first fixing member, wherein the first fixing member comprises a first fixing plate and a second fixing plate which are arranged opposite to each other, so that a clamping space is formed between the first fixing plate and the second fixing plate, and the clamping space is used to clamp the structure to be fixed;

[0007] A waterproof mechanism, the waterproof mechanism includes a first water guide groove and a second water guide groove, a plurality of the first water guide grooves are provided, the first water guide grooves are fixed on the fixed bracket, a plurality of the second water guide grooves are mounted on two adjacent first water guide grooves, and the two ends of the second water guide grooves are respectively connected to the first water guide grooves on both sides; a connecting piece is provided on the first water guide groove, and the connecting piece is used to fix the photovoltaic module.

[0008] In one embodiment, a slot is formed on one of the first fixing plate and the second fixing plate, and a protrusion is formed on the other of the first fixing plate and the second fixing plate, and the protrusion is engaged with the slot.

[0009] In one embodiment, the second fixing plate includes a mounting portion, the mounting portion extends in a direction parallel to the fixing bracket, the mounting portion is in contact with a side of the fixing bracket away from the first water guide groove, and the mounting portion is fixedly connected to the fixing bracket via a fixing member.

[0010] In one of the embodiments, connecting parts are provided on both sides of the first water guiding groove, and the connecting parts are fixedly connected to the fixing bracket through a pressing plate.

[0011] In one of the embodiments, the pressing plate includes a crimping portion, the crimping portion is fixedly connected to the fixing bracket, and the connecting portion is located between the crimping portion and the fixing bracket.

[0012] In one of the embodiments, the pressing plate further includes two limiting portions, the two limiting portions are respectively located on both sides of the crimping portion, and the fixing bracket is located between the two limiting portions.

[0013] In one of the embodiments, two bosses are disposed on the top of the first water guide groove, and two grooves are disposed at both ends of the connecting member, and the grooves are used to accommodate the bosses.

[0014] In one embodiment, the first water guiding groove is arranged along a first direction, the second water guiding groove is arranged along a second direction, and the first direction and the second direction are perpendicular to each other.

[0015] In one embodiment, inclined portions are provided at both ends of the second water conduit groove, the inclined portions are at least partially located in the first water conduit groove, and the inclined portions are inclined toward the first water conduit groove.

[0016] In the second aspect, an embodiment of the present application also provides a photovoltaic building roof, including the above-mentioned photovoltaic fixed support system, and also including photovoltaic components and color steel tiles, the photovoltaic fixed support system is fixed on the color steel tiles, and the photovoltaic components are fixed on the photovoltaic fixed support system.

[0017] Beneficial effects:

[0018] An embodiment of the present application provides a photovoltaic fixed bracket system, including a fixed bracket and a waterproof structure, wherein the first fixing member includes a first fixing plate and a second fixing plate, and the waterproof mechanism includes a first water guide groove and a second water guide groove. The first water guide groove and the second water guide groove are fixed to the fixed bracket, and finally the photovoltaic component is fixed to the connecting member on the first water guide groove. The structure to be fixed is clamped by the clamping space formed between the first fixing plate and the second fixing plate, so that the photovoltaic component is fixed to the structure to be fixed, thereby avoiding damage to the roof by using self-tapping screws. In addition, the drainage of the photovoltaic component is achieved by the first water guide groove and the second water guide groove connected to the first water guide groove, which can avoid damage to the photovoltaic component due to excessive water accumulation.

[0019] The embodiment of the present application also provides a photovoltaic building roof, comprising the above-mentioned photovoltaic fixed support system, and also comprising photovoltaic modules and color steel tiles, wherein the photovoltaic fixed support system is fixed on the color steel tiles, and the photovoltaic modules are fixed on the photovoltaic fixed support system. The photovoltaic building roof can achieve at least one of the above-mentioned technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a photovoltaic fixed support system provided in some embodiments of the present application.

[0021] Figure 2 for Figure 1 Another perspective schematic diagram of the photovoltaic fixed support system shown.

[0022] Figure 3 A schematic structural diagram of a first fixing member of a photovoltaic fixing support system provided for some embodiments of the application.

[0023] Figure 4 A front view of a fixing bracket of a photovoltaic fixing bracket system provided in some embodiments of the present application.

[0024] Figure 5 A top view of a fixing bracket of a photovoltaic fixing bracket system provided in some embodiments of the present application.

[0025] Figure 6 A side view of a fixing bracket of a photovoltaic fixing bracket system provided in some embodiments of the present application.

[0026] Figure 7 A schematic structural diagram of the first water guide trough of a photovoltaic fixed support system provided in some embodiments of the present application.

[0027] Figure 8 A top view of a pressure plate of a photovoltaic fixing support system provided in some embodiments of the present application.

[0028] Fig. 9 A side view of a pressure plate of a photovoltaic fixing support system provided in some embodiments of the present application.

[0029] Fig.10 A front view of a pressure plate of a photovoltaic fixing support system provided in some embodiments of the present application.

[0030] Fig.11 A schematic diagram of the structure of the connecting parts of the photovoltaic fixing support system provided in some embodiments of the present application.

[0031] Fig.12 A schematic structural diagram of a second water guide trough of a photovoltaic fixed support system provided in some embodiments of the present application.

[0032] Fig.13 A schematic structural diagram of a medium-pressure block of a photovoltaic fixed support system provided in some embodiments of the present application.

[0033] Reference numerals:

[0034] 1. Fixed bracket; 11. Reinforcement part;

[0035] 2. first fixing member; 21. first fixing plate; 211. first clamping protrusion; 212. second clamping groove; 213. first contact portion; 22. second fixing plate; 221. first clamping groove; 222. second clamping protrusion; 223. second contact portion; 224. mounting portion; 23. clamping space;

[0036] 3. Waterproof mechanism; 31. First water guide groove; 311. Connecting portion; 312. Boss; 32. Second water guide groove; 321. Inclined portion;

[0037] 4. Connector; 41. Groove;

[0038] 5. Medium pressure block;

[0039] 6. Pressing plate; 61. Pressing portion; 62. Limiting portion;

[0040] 10. Photovoltaic modules;

[0041] 20. Color steel tiles. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0043] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0044] In addition, if the terms "first" or "second" appear, these terms 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0046] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0047] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0048] First, see Figure 1-Figure 3A photovoltaic fixing bracket system is provided in one embodiment of the present application. The photovoltaic fixing bracket system is used to fix a photovoltaic module 10 to a structure to be fixed on a building roof, and includes a fixing bracket 1 and a waterproof mechanism 3. The fixing bracket 1 is connected to a first fixing member 2. The first fixing member 2 includes a first fixing plate 21 and a second fixing plate arranged relatively to form a clamping space 23 between the first fixing plate 21 and the second fixing plate. The structure of the clamping space 23 matches the structure of the structure to be fixed, and the clamping space 23 clamps the structure to be fixed; the waterproof mechanism 3 includes a first water guide groove 31 and a second water guide groove 32. A plurality of first water guide grooves 31 are provided. The first water guide grooves 31 are fixed to the fixing bracket 1. A plurality of second water guide grooves 32 are arranged on two adjacent first water guide grooves 31. The two ends of the second water guide grooves 32 are respectively connected to the first water guide grooves 31 on both sides; a connecting member 4 is provided on the first water guide groove 31. The connecting member 4 is used to fix the photovoltaic module 10. The photovoltaic module 10 is fixed to the connecting member 4 through a middle pressure block 5.

[0049] A photovoltaic fixing bracket system provided in an embodiment of the present application clamps the structure to be fixed by means of a clamping space 23 formed by a first fixing plate 21 and a second fixing plate, thereby fixing the photovoltaic module 10 on the structure to be fixed, thereby avoiding damage to the roof by using self-tapping screws. In addition, drainage of the photovoltaic module 10 is achieved through the first water guide groove 31 and the second water guide groove 32 connected to the first water guide groove 31, thereby avoiding damage to the photovoltaic module 10 by excessive water accumulation.

[0050] The photovoltaic fixed support system is the main component of the photovoltaic system. It is the part of the photovoltaic system that provides support and fixation for the photovoltaic module 10, and can stably fix the entire photovoltaic system on the structure to be fixed. In the embodiment of the present application, the structure to be fixed is the color steel tile 20 on the roof of the building. Of course, the photovoltaic fixed support system 1 in the embodiment of the present application can also be applied to other scenarios where the photovoltaic system needs to be fixed, and there is no limitation on this in the embodiment of the present application.

[0051] The fixing bracket 1 is a carrier of the photovoltaic fixing bracket system, and is used to support and carry the entire photovoltaic fixing bracket 1 system and the photovoltaic assembly 10 .

[0052] The waterproof mechanism 3 is the waterproof part of the photovoltaic fixed support system, which is used to drain the photovoltaic module 10 and the photovoltaic fixed support system, and can prevent excessive water accumulation from damaging the photovoltaic module 10.

[0053] like Figure 3 As shown, in some embodiments, a card slot is provided on one of the first fixing plate 21 and the second fixing plate in the embodiment of the present application, and a card protrusion is provided on the other of the first fixing plate 21 and the second fixing plate, and the card protrusion is engaged with the card slot.

[0054] In the embodiment of the present application, the first fixing plate 21 is provided with a first clamping protrusion 211 and a second clamping groove 212, and the second fixing plate is provided with a first clamping groove 221 and a second clamping protrusion 222. The first clamping protrusion 211 is clamped with the first clamping groove 221, and the second clamping protrusion 222 is clamped with the second clamping groove 212. The first fixing plate 21 and the second fixing plate can be quickly fixed by clamping, thereby greatly accelerating the installation efficiency of the photovoltaic fixing bracket 1 system. In addition, in order to strengthen the fixing effect of the first fixing plate 21 and the second fixing plate, so that the first fixing member 2 can be stably fixed on the structure to be fixed, through holes are opened on the first fixing plate 21 and the second fixing plate, and the two through holes are correspondingly arranged. Bolts are sequentially passed through the two through holes and then tightened by nuts to achieve the fixing of the first fixing plate 21 and the second fixing plate.

[0055] In some embodiments, the second fixed plate in the embodiment of the present application includes a mounting portion 224, which extends in a direction parallel to the fixed bracket 1, and the mounting portion 224 is in contact with a side of the fixed bracket 1 away from the first water guide groove 31, and the mounting portion 224 is fixedly connected to the fixed bracket 1 through a fixing member.

[0056] By providing the mounting portion 224, the contact area between the second mounting plate and the fixing bracket 1 is increased, so that the connection between the fixing bracket 1 and the second mounting plate is more stable, and further the connection between the entire photovoltaic fixing bracket 1 system and the structure to be fixed is more stable.

[0057] In addition, in the embodiment of the present application, the side of the mounting portion 224 that is in contact with the fixed bracket 1 is arranged in a serrated shape. By setting the side of the mounting portion 224 that is in contact with the fixed bracket 1 in a serrated shape, the friction between the mounting portion 224 and the fixed bracket 1 can be greatly enhanced, thereby further making the connection between the fixed bracket 1 and the second mounting plate more stable.

[0058] In order to facilitate the installation of the first fixing member and the structure to be fixed, a first contact portion 213 is further provided at the bottom of the first fixing plate 21, and a second contact portion 223 is further provided at the bottom of the second fixing plate 22 in the embodiment of the present application. By providing the first contact portion 213 and the second contact portion 223, the first fixing plate 21 and the second fixing plate 22 can be placed more stably on the structure to be fixed, thereby facilitating the staff to fix the first fixing member 2 on the structure to be fixed. In addition, by providing the first contact portion 213 and the second contact portion 223, the contact area between the first fixing member 2 and the structure to be fixed can be increased, thereby making the fixation of the first fixing member 2 and the structure to be fixed more stable, thereby improving the structural stability of the entire photovoltaic fixing bracket system.

[0059] See also Figure 4-Figure 6As shown, in some embodiments, the cross-section of the fixing bracket 1 in the embodiments of the present application is U-shaped, and the fixing bracket 1 is a hollow structure. By setting the fixing bracket 1 to be hollow, the material usage can be greatly reduced, thereby greatly saving the production cost of the photovoltaic fixing bracket 1 system. In addition, the weight of the photovoltaic fixing bracket 1 system can also be greatly reduced, which is convenient for installation.

[0060] A reinforcement portion 11 is provided at the opening of the fixing bracket 1 . The reinforcement portion 11 can greatly enhance the strength of the fixing bracket 1 , thereby preventing the fixing bracket 1 from being damaged and greatly extending the service life of the fixing bracket 1 .

[0061] See also Figure 7-Figure 10 As shown, in some embodiments, connecting parts 311 are provided on both sides of the first water guide groove 31 in the embodiment of the present application, and the connecting parts 311 are fixedly connected to the fixing bracket 1 through the pressing plate 6.

[0062] By providing the connecting portion 311, the contact area between the first water guide groove 31 and the fixed bracket 1 can be increased, thereby making the connection between the first water guide groove 31 and the fixed bracket 1 more stable. In addition, the connecting portion 311 is pressed against the fixed bracket 1 by the pressing plate 6 and the pressing plate 6 is fixedly connected to the fixed bracket 1 by the fixing member, so that the first water guide groove 31 can be stably fixed on the fixed bracket 1.

[0063] In some embodiments, the pressing plate 6 in the embodiment of the present application includes a crimping portion 61 , the crimping portion 61 is fixedly connected to the fixing bracket 1 , and the connecting portion 311 is located between the crimping portion 61 and the fixing bracket 1 .

[0064] By providing the crimping portion 61 , the connecting portion 311 is located between the crimping portion 61 and the fixing bracket 1 , so that the first water guide channel 31 can be stably fixed on the fixing bracket 1 .

[0065] In some embodiments, the pressing plate 6 in the embodiment of the present application further includes two limiting portions 62 , the two limiting portions 62 are respectively located on both sides of the crimping portion 61 , and the fixing bracket 1 is located between the two limiting portions 62 .

[0066] By providing the limiting portion 62, the pressing plate 6 can be quickly positioned when installed on the fixing bracket 1, thereby accelerating the installation efficiency. In addition, in this embodiment, the limiting portion 62 can abut against the outer side of the fixing bracket 1, thereby making the connection between the pressing plate 6 and the fixing bracket 1 more stable, and preventing the shaking of the pressing plate 6 from causing the shaking of the entire photovoltaic fixing bracket 1 system.

[0067] like Figure 7 and Fig.11As shown, in some embodiments, two bosses 312 are provided on the top of the first water channel 31, and two grooves 41 are provided at both ends of the connector 4, and the grooves 41 are used to accommodate the bosses 312. By providing the bosses 312 on the top of the first water channel 31 and providing the grooves 41 on the connector 4, the connector 4 and the first water channel 31 can be quickly docked and positioned by the cooperation of the bosses 312 and the grooves 41, thereby greatly accelerating the installation efficiency. In addition, in order to make the connection between the connector 4 and the first water channel 31 more stable, the connector 4 and the first water channel 31 are both provided with through holes, and the two through holes are correspondingly provided, and bolts are sequentially passed through the two through holes for fastening, so as to achieve the fixation of the connector 4 and the first water channel 31.

[0068] like Figure 1 As shown, in some embodiments, the first water guide grooves 31 are arranged along a first direction, and the second water guide grooves 32 are arranged along a second direction, and the first direction and the second direction are perpendicular to each other.

[0069] By arranging the first water guide groove 31 and the second water guide groove 32 perpendicularly to each other, the water guide effect of the first water guide groove 31 and the second water guide groove 32 used in cooperation can be better, thereby accelerating the water guide rate.

[0070] like Figure 1 and Fig.12 As shown, in some embodiments, in the embodiment of the present application, inclined portions 321 are provided at both ends of the second water guide groove 32, the inclined portions 321 are at least partially located in the first water guide groove 31, and the inclined portions 321 are inclined toward the first water guide groove 31. By providing the inclined portions 321 at both ends of the second water guide groove 32, it is easier for the accumulated water in the second water guide groove 32 to flow into the first water guide groove 31, so that the water guiding effect of the second water guide groove 32 is better, thereby accelerating the water guiding rate.

[0071] like Figure 1 and Fig.13 As shown, in some embodiments, in the embodiments of the present application, a rubber pad is arranged between the intermediate pressure block 5 and the photovoltaic assembly 10. By arranging a rubber pad between the intermediate pressure block 5 and the photovoltaic assembly 10, the photovoltaic assembly 10 can be more firmly fixed between the connector 4 and the intermediate pressure block 5. In addition, the photovoltaic assembly 10 can be protected to avoid hard contact between the photovoltaic assembly 10 and the intermediate pressure block 5, which may cause damage to the photovoltaic assembly 10.

[0072] In the second aspect, the embodiments of the present application also provide a photovoltaic building roof, including the above-mentioned photovoltaic fixed support system, and also including photovoltaic modules and color steel tiles, the photovoltaic fixed support system is fixed on the color steel tiles, and the photovoltaic modules are fixed on the photovoltaic fixed support system.

[0073] By using a photovoltaic fixing bracket system to fix the photovoltaic modules on the color steel tiles, it is possible to avoid using self-tapping screws to damage the roof and cause roof leaks, thereby greatly extending the service life of the photovoltaic building roof.

[0074] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A photovoltaic fixed support system, which is used to fix photovoltaic modules to a structure to be fixed on a building roof, characterized in that: include: A fixing bracket, wherein the fixing bracket is connected to a first fixing member, wherein the first fixing member comprises a first fixing plate and a second fixing plate which are arranged opposite to each other, so that a clamping space is formed between the first fixing plate and the second fixing plate, and the clamping space is used to clamp the structure to be fixed; A waterproof mechanism, the waterproof mechanism includes a first water guide groove and a second water guide groove, a plurality of the first water guide grooves are provided, the first water guide grooves are fixed on the fixed bracket, a plurality of the second water guide grooves are mounted on two adjacent first water guide grooves, and the two ends of the second water guide grooves are respectively connected to the first water guide grooves on both sides; a connecting piece is provided on the first water guide groove, and the connecting piece is used to fix the photovoltaic module.

2. The photovoltaic fixed support system according to claim 1, characterized in that: A clamping groove is formed on one of the first fixing plate and the second fixing plate, and a clamping protrusion is formed on the other of the first fixing plate and the second fixing plate, and the clamping protrusion is clamped in the clamping groove.

3. The photovoltaic fixed support system according to claim 1, characterized in that: The second fixing plate includes a mounting portion, the mounting portion extends in a direction parallel to the fixing bracket, the mounting portion is in contact with a side of the fixing bracket away from the first water guide groove, and the mounting portion is fixedly connected to the fixing bracket via a fixing member.

4. The photovoltaic fixed support system according to claim 1, characterized in that: Connecting parts are provided on both sides of the first water guiding groove, and the connecting parts are fixedly connected to the fixing bracket through a pressing plate.

5. The photovoltaic fixed support system according to claim 4, characterized in that: The pressing plate includes a crimping portion, the crimping portion is fixedly connected to the fixing bracket, and the connecting portion is located between the crimping portion and the fixing bracket.

6. The photovoltaic fixed support system according to claim 5, characterized in that: The pressing plate further comprises two limiting portions, the two limiting portions are respectively located at two sides of the crimping portion, and the fixing bracket is located between the two limiting portions.

7. The photovoltaic fixed support system according to claim 1, characterized in that: Two bosses are arranged on the top of the first water guide groove, and two grooves are arranged at both ends of the connecting member, and the grooves are used to accommodate the bosses.

8. The photovoltaic fixed support system according to claim 1, characterized in that: The first water guiding grooves are arranged along a first direction, and the second water guiding grooves are arranged along a second direction, and the first direction and the second direction are perpendicular to each other.

9. The photovoltaic fixed support system according to claim 1, characterized in that: Both ends of the second water conduit groove are provided with inclined portions, the inclined portions are at least partially located in the first water conduit groove, and the inclined portions are inclined toward the first water conduit groove.

10. A photovoltaic building roof, characterized in that: The photovoltaic fixed support system comprises the photovoltaic fixed support system as described in any one of claims 1 to 9 above, and further comprises photovoltaic modules and color steel tiles, wherein the photovoltaic fixed support system is fixed on the color steel tiles, and the photovoltaic modules are fixed on the photovoltaic fixed support system.

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