Device and second layer for collecting and guiding rainwater for solar power generation

Through the use of U-shaped gutter design and zinc-aluminum-magnesium steel materials, combined with the original back pressure combination and inlaid mortise and tenon connection, the installation difficulty and structural safety issues of multi-layer photovoltaic solar roof units are solved, achieving convenient installation, cost savings and waterproof and corrosion-resistant effects.

CN223446517UActive Publication Date: 2025-10-17SHENZHEN SKYWORTH AIR CONDITIONING TECH CO LTD
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Patent Information

Application Number
CN202422733699.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-11
Publication Date
2025-10-17
Estimated Expiration
2034-11-11

AI Technical Summary

Technical Problem

Existing multi-layer photovoltaic solar roof units are difficult to install, labor-intensive, and have problems such as increased costs and structural insecurity.

Method used

It adopts a U-shaped sink design, combined with zinc-aluminum-magnesium steel material and a rectangular cross-section, and is used in combination with a bracket and a pressure block. It is fixed with a single bolt. The original back pressure combination and inlaid mortise and tenon connection structure simplify the installation process and improve structural safety.

Benefits of technology

A multi-layer photovoltaic solar roof system is achieved that is easy to install, cost-effective, structurally safe, waterproof, corrosion-resistant, and easy to maintain.

✦ Generated by Eureka AI based on patent content.

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Abstract

A rainwater collecting and guiding device for solar power generation and a second layer relate to the field of solar power generation and comprise a first connecting part connected with a first fixing device and a second connecting part connected with a third fixing device. And the first connecting part and the second connecting part are vertically connected into a whole through a connecting part which is concave towards a rainwater accommodating cavity for accommodating rainwater.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of solar power generation, especially relates to a device for collecting and guiding rainwater for solar power generation and a second layer. BACKGROUND

[0002] In the existing multilayer photovoltaic solar roof unit, the existing W water channel needs to fix the bracket according to the hole position first, and then press the component frame through the contract type clamp, which needs multiple bolts, thereby increasing the installation difficulty and labor intensity. SUMMARY

[0003] The application therefore proposes the following solution: a device for collecting and guiding rainwater for solar power generation, comprising a first connecting portion connected with a first fixing device and a second connecting portion connected with a third fixing device, the first connecting portion and the second connecting portion are vertically connected into one body through a concave connecting portion containing rainwater.

[0004] Preferably, the cross section is U-shaped as a whole.

[0005] Preferably, it comprises a first branch and a second branch arranged in parallel and spaced apart, respectively provided with the first connecting portion, the second connecting portion and the concave connecting portion.

[0006] Preferably, the first connecting portion is an upper portion, the second connecting portion is a lower portion, and the concave connecting portion is an intermediate portion, the highest point and the lowest point of the intermediate portion exceeding the lowest point of the upper portion and the highest point of the lower portion respectively so as to form a wedge-shaped protrusion.

[0007] Preferably, the upper portion comprises a horizontal positioning portion so as to cooperate with the first fixing device.

[0008] Preferably, the upper portion comprises an upper recessed groove so as to cooperate with the lower wedge wall of the first fixing device.

[0009] Preferably, the lower portion comprises a lower recessed groove so as to cooperate with the first inclined wall of the third fixing device.

[0010] Preferably, it further comprises a closed bottom portion connecting the first branch (213) and the second branch (214.

[0011] The utility model further relates to a second layer comprising a plurality of the above-mentioned devices for collecting and guiding rainwater for solar power generation.

[0012] Preferably, it supports the first layer and collects and guides rainwater below.

[0013] The utility model discloses a multilayer photovoltaic solar roof unit and multilayer photovoltaic solar roof water guide type water tank, fixed point is not restricted by hole position, bracket and briquetting combination use, a bolt fixed can.

[0014] In addition, cost is saved: the new UW water tank material adopts thin-wall zinc-aluminum-magnesium steel, and the section adopts a rectangular form, the unit steel consumption is smaller, and the cost is saved. Structural safety: the new UW water tank section adopts a rectangular form, the section inertia moment and the bending section modulus are larger, and the structural safety is ensured. Waterproof safety: the new UW water tank section adopts a rectangular form, the effective drainage section is larger, and the waterproof safety is ensured. Anti-corrosion safety: the new UW water tank surface anti-corrosion adopts zinc-aluminum-magnesium, and there is no additional large hole throughout, the corrosion risk is effectively reduced, and the anti-corrosion safety is ensured. Convenient installation: the new UW water tank adopts a safe back pressure form to fix the photovoltaic module, only one bolt is needed at each briquetting, and the convenient installation is ensured. Back pressure combination: the new UW water tank has a unique back pressure combination, the combination adopts a new unique inlaid mortise and tenon connection structure, and the structural safety of the water tank and the module is ensured. Convenient maintenance: the new UW water tank support system is all connected by bolts, convenient for later maintenance, the material is selected from steel and aluminum alloy, convenient for recycling and secondary use, low carbon and environmental protection. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the perspective view of the multilayer photovoltaic solar roof unit of the utility model;

[0016] Figure 2 It is the perspective view of the multilayer photovoltaic solar roof unit of the utility model;

[0017] Figure 3 It is the perspective view of the multilayer photovoltaic solar roof unit of the utility model;

[0018] Figure 4 It is the perspective view of the multilayer photovoltaic solar roof unit of the utility model;

[0019] Figure 5 It is the perspective view of the multilayer photovoltaic solar roof unit of the utility model;

[0020] Figure 6 It is the perspective view of the multilayer photovoltaic solar roof unit of the utility model;

[0021] Figure 7 It is the perspective view of the multilayer photovoltaic solar roof unit of the utility model;

[0022] Figure 8 It is the perspective view of the multilayer photovoltaic solar roof unit of the utility model;

[0023] Figure 9 for Figure 8 The view of the component after removing the third layer;

[0024] Figure 10 is a three-dimensional view of a U-bolt;

[0025] Figure 11 For use with Figure 10 A perspective view of the baffle with the U-bolt;

[0026] Figure 12 This is a simplified diagram of the second layer;

[0027] Figure 13 A schematic diagram showing the first layer connected and the photovoltaic panels;

[0028] Figure 14 for Figure 13 Enlarged view of part A in .

[0029] Relationship between reference numerals and terms:

[0030] 1st floor;

[0031] 2 second floor;

[0032] 3Third floor;

[0033] 8C type plate;

[0034] more than 100 photovoltaic solar rooftop units;

[0035] 21U-shaped slots;

[0036] 22 third fixing device;

[0037] 23 first fixing device;

[0038] 211 opening;

[0039] 212 closed bottom;

[0040] 213 first branch;

[0041] 215 collection device;

[0042] 214 Second Branch;

[0043] 81 middle part;

[0044] 82 upper part;

[0045] 83 lower part;

[0046] 231 bracket;

[0047] 232 upper pressing block;

[0048] 233 lower block

[0049] 2311 bracket connecting part

[0050] 2312 bracket fitting part

[0051] 2313 bracket middle part

[0052] 2331 lower block connecting part

[0053] 2335 lower block fitting part

[0054] 2321 upper pressing block connecting part

[0055] 2322 upper pressing block fitting part

[0056] 2323 upper pressing block inner cavity

[0057] 23211 T-shaped hole

[0058] 23212 boss

[0059] 23221 first wedge-shaped slot

[0060] 23222 upper wedge wall

[0061] 23223 lower wedge wall

[0062] 23111 upper bracket through hole

[0063] 23123 lower inclined wall

[0064] 23122 upper inclined wall

[0065] 23311 lower block through hole

[0066] 23312 hollowed-out part

[0067] 23121 second wedge-shaped slot

[0068] 23112 bracket inner cavity

[0069] 4 bolt

[0070] 23113 bracket middle cavity

[0071] 221 pressing block

[0072] 222 U-shaped bolt

[0073] 223 baffle

[0074] 2231 first inclined wall

[0075] 2232 second inclined wall

[0076] 2233 third wedge-shaped slot

[0077] 2234 through hole of the pressure block

[0078] 2235 vertical wall

[0079] 811 wedge-shaped protrusion

[0080] 2215 first gap

[0081] 2335 second gap

[0082] 11 photovoltaic panel itself

[0083] 12 frame of the photovoltaic panel

[0084] 121 lower flat edge

[0085] 122 receiving upright post

[0086] 123 support groove of the photovoltaic panel itself

[0087] 2314 limiting plate

[0088] 2315 positioning cavity

[0089] 2316 bearing platform

[0090] 231121 built-in leg of the bracket

[0091] 231122 built-out leg of the bracket

[0092] 23313 built-out leg of the lower block

[0093] 23314 built-in leg of the lower block

[0094] 31 building roof

[0095] 32 support frame

[0096] 33 frame

[0097] 34 bearing beam

[0098] 200 power station

[0099] 821 horizontal positioning part

[0100] 822 upper recessed groove

[0101] 832 lower recessed groove DETAILED DESCRIPTION

[0102] As Figure 1As shown: A multi-layer photovoltaic solar roof unit 100 includes a first layer 1 as a solar photovoltaic panel, a third layer 3 as a bottom layer directly connected to the building, and a second layer 2 between the first layer 1 and the third layer 3, wherein the second layer 2 is a water-guiding and fixing device that simultaneously guides water and fixes the first layer and the third layer 3. The first layer 1 includes the photovoltaic panel itself 11 and the photovoltaic panel frame 12. The photovoltaic panel frame 12 includes a lower straight edge 121. When forming the multi-layer photovoltaic solar roof unit 100, the lower straight edge 121 is placed on the bracket connection part 2311, and the predetermined size just matches the size of the bracket connection part 2311. At the same time, the receiving column 122 abuts against the limiting plate 2314. In particular, the lower straight edge 121 extends into the first wedge-shaped groove 23221 and is pressed by the upper wedge wall 23222 of the upper pressing block 232. Therefore, the structure of the bracket arrangement in the present invention plays a role in fixing and clamping the prefabricated solar photovoltaic panel. Figure 14 Also shown is a support groove 123 for accommodating the photovoltaic panel itself.

[0103] Figure 1 and Figure 2 As can be seen in FIG, the second layer 2 includes at least two U-shaped grooves 21. Figure 4 The opening 211 of the U-shaped groove 21 faces the solar photovoltaic panel.

[0104] Figure 1 It can be seen that the second layer 2 includes a third fixing device 22 for fixing the third layer 3 set on the closed bottom 212 of the U-shaped groove 21 and a first fixing device 23 for fixing the solar panel set on the first branch 213 and the second branch 214 of the U-shaped groove.

[0105] from Figure 2 and Figure 4 As can be seen in the figure, the cross sections of the first branch 213 and the second branch 214 are C-shaped plates 8 that are away from each other and extend parallel to each other along the length direction of the solar panel.

[0106] like Figure 2 As shown, the C-shaped plate 8 includes a middle portion 81 , an upper portion 82 above the middle portion, and a lower portion 83 below the middle portion 81 .

[0107] like Figure 1 As shown, the lower portion 83 is connected to the third layer 3 via a third fixing device 22 .

[0108] Figure 1 In the embodiment, the second layer 2 is provided with a collecting device 215 for collecting water from various meteorological phenomena and guiding the collected water to a predetermined place.

[0109] As Figure 3 shown, a multi-layer photovoltaic solar roof comprises the multi-layer photovoltaic solar roof unit 100 described above, two adjacent first branches 213 of the second layer 2 carry first solar photovoltaic panels, and two second branches 214 on the outer side carry second and third solar photovoltaic panels respectively.

[0110] In Figure 3 the plurality of second layers 2 are connected to be inclined to one side of the building.

[0111] Figure 3 In the second layers 2 are arranged parallel to each other and are connected perpendicularly to the third layers 3 arranged parallel to each other.

[0112] Figure 5 , Figure 6 and Figure 7 the constituent elements of the first fixing device can be seen, including the bracket 231, the upper pressing block 232 cooperating with the bracket 231 and arranged on the upper part of the bracket 231, and the lower supporting block 233 arranged on the lower part of the bracket 231 and connected with the bracket while cooperating with the groove of the upper part 82 of the C-shaped plate 8.

[0113] The bolt 4 connects the lower supporting block 233 and the bracket 231 together from bottom to top, and because the shape of the sliding block of the lower supporting block 233 is complementary to the groove of the upper part 82, it can move along the C-shaped plate 8. This facilitates the adjustment of the position of the first fixing device 23.

[0114] As Figure 5 , Figure 6 and Figure 7 shown, the bolt and the nut are connected into one body through the bracket connecting part 2311, the lower supporting block connecting part 2331 and the upper pressing block connecting part 2321, while the bracket cooperating part 2312 and the upper pressing block cooperating part 2322 are cooperated through shape complementation, and the lower supporting block cooperating part 2335 and the groove of the upper part 82 of the C-shaped plate 8 are cooperated through shape complementation.

[0115] According to a preferred embodiment of the present application, a bracket inner cavity 23112 is arranged on the bracket 231 to increase the passage of rainwater and minimize the retention of rainwater. Similarly, an upper pressing block inner cavity 2323 is also arranged in the upper pressing block 232.

[0116] As can be seen from the drawings, the upper pressing block 232, the lower supporting block 233 and the bracket 231 are connected into one body by setting the screw and nut through the T-shaped hole 23211, the upper bracket through hole 23111 and the lower supporting block through hole 23311. Figure 7 In the lower supporting block 233 is also provided with a hollowed-out part 23312, thereby leaving extra space for installation to allow fluid to pass through.

[0117] As can be seen from the drawings, the first wedge-shaped groove 23221 is formed by the upper wedge wall 23222 and the lower wedge wall 23223 to cooperate with the second wedge-shaped groove 23121 formed by the upper inclined wall 23122 and the lower inclined wall 23123 so that they can be positioned and slid to the adjusted installation position.

[0118] As can be seen from the drawings, the boss 23212 can be provided with a nut or a fixed nut so that the bolt 4 can be directly screwed to the nut, or the bolt 4 can be arranged on the boss 23212. The bolt 4 is preferably placed in the boss 23212 in the present application, because the positioning effect of the T-shaped hole 23211 makes the bolt 4 not rotate when the nut is tightened. Then the corresponding through holes 23111, 23311 of the bracket 231 and the lower block 233 are sequentially passed through the bolt 4.

[0119] The third connecting device of the present application comprises a supporting block 221, a U-shaped bolt 222 passing through the supporting block through hole 2234 of the supporting block 221, and the two branch bolts of the U-shaped bolt 222 passing through the baffle 223 at the bottom of the third layer 3, which is preferably a steel beam in the drawings, and the baffle 223 spans the width of the steel beam, so that the second layer 2, which is preferably a water tank in the present application, is tightly fixed together by tightening the nut.

[0120] As can be easily thought by those skilled in the art, the supporting block 221 and the lower block 233 can be parts of the same structure, just need to be flipped when used. Therefore, the supporting block 221 and the lower block 233 in the present application can be universal, reducing the number of parts and facilitating production and installation.

[0121] As can be seen from the drawings, the first inclined wall 2231 and the second inclined wall 2232 connected to the root of the first inclined wall 2231 are arranged in the supporting block 221 to form the third wedge-shaped groove 2233 to cooperate with the wedge-shaped protrusion 811 on the middle part 81 of the C-shaped plate 8. Because of the existence of the vertical wall 2235, the first gap 2215 is formed after installation. As can be seen from the drawings, there is a similar second gap 2335 in the first fixing device 23. As a preferred embodiment of the present application, these gaps 2215, 2335 greatly increase the passage of liquid such as rainwater in the environment, and eventually flow into the U-shaped groove 21 of the present application and flow into the designated position along the U-shaped groove 21.

[0122] In the present application, a method for fixing the second layer and the first layer of a solar power station is also provided, comprising the following steps:

[0123] Step 1, place the bracket 231 on the second layer 2 so that the positioning recess 2315 of the bracket 231 is complementarily matched with the upper part 82 of the second layer 2;

[0124] Step 2, placing the lower flat edge 121 of the first layer 1 onto the bearing platform 2316 of the bracket 231 such that the receiving stand 122 of the first layer 1 abuts against the limiting plate 2314;

[0125] Step 3, inserting the bolt 4 into the upper bracket through hole 23111 of the bracket 231;

[0126] Step 4, horizontally translating the T-shaped hole 23211 of the upper pressing block 232 to allow the screw shank of the screw to pass through, the first wedge-shaped groove 23221 of the upper pressing block 232 receiving the upper inclined wall 23122 of the bracket 231 and the lower flat edge 121 and the lower wedge wall 23223 of the upper pressing block 232 inserting into the second wedge-shaped groove 23121 of the bracket 231;

[0127] Step 5, placing the lower supporting block 233 from bottom to top such that the lower supporting block through hole 23311 of the lower supporting block 233 passing through the bolt shank of the screw 4 and the third wedge-shaped groove 2233 cooperating with the wedge-shaped protrusion 811 of the upper portion 82;

[0128] Step 6, tightening the nut onto the bolt shank of the screw 4 to fasten.

[0129] The bracket 231 is provided with a bracket middle cavity 23113 on the opening 211 of the water channel.

[0130] The upper pressing block 232 is provided with an upper pressing block inner cavity 2323.

[0131] In step 5, the lower supporting block inner legs 23314 of the lower supporting block connecting portion 2331 of the lower supporting block 233 are opposite to or in contact with the bracket outer legs 231122 of the bracket 231 and the lower supporting block outer legs 23313 are opposite to or in contact with the outer edge of the bracket 231.

[0132] The second layer comprises a water channel for collecting and guiding rainwater to a predetermined position, and the first layer 1 comprises a photovoltaic panel.

[0133] Step 7, placing the product obtained in step 6 onto the third layer 3.

[0134] The third layer 3 comprises a building roof 31 and a support frame 32 located on the building roof 31. Figure 3 As shown, a border 33 is also shown, which is integrally circumferentially surrounding the first layer 1 and the second layer 2, constituting an entirety to have a better effect on both aesthetics and finally guiding water out of the photovoltaic panel system.

[0135] According to a preferred embodiment of the application, said third layer 3 also comprises a bearing beam 34 which directly bears the product obtained after the completion of said step 6.

[0136] The power plant 200 is thus made according to the method described above. It comprises energy storage means built into said first layer 1.

[0137] According to a preferred embodiment of the application, a lower fixing device for locking the second layer 2 to a desired device comprises a first connecting device connected to said second layer and a second connecting device connected to said desired device, said first connecting device being in complementary shape with said second layer and said second connecting device being in tight fit.

[0138] Said second connecting device is provided with an upper bracket through hole 23111 allowing the passage of a bolt 4.

[0139] Said second connecting device comprises a lower bracket outer leg 23313 and a lower bracket inner leg 23314 opposite said lower bracket outer leg so as to form a second gap 2335 with the desired device.

[0140] Said lower bracket inner leg 23314 is in the shape of a platform.

[0141] Said first connecting device is connected perpendicularly to said second connecting device to form an angular structure.

[0142] Said first connecting device comprises a lower bracket fitting part 2335 so as to be connected complementarily to a corresponding groove of the upper part 82 or lower part 83 of said second layer 2.

[0143] Said second layer is a collecting device 215.

[0144] Said desired device comprises a bracket connecting part 2311 provided on said second layer.

[0145] Said desired device comprises a baffle 223.

[0146] It comprises at least two baffle block through holes 2234.

[0147] In addition, the present application also shows in the figures an upper fixing device for locking the first layer 1 to a desired device, comprising a clamping device which clamps the first layer and an intervention device which requires the intervention of an external connecting device to be fixedly connected to said desired device, the clamping device also allowing the upper inclined wall 23122 of said desired device to be embedded therein.

[0148] Said intervention device comprises a T-shaped hole 23211 which allows the head of a bolt 4 to be arranged therein.

[0149] The intervention device and the clamping device are connected by the inclined middle part with the upper pressing block inner cavity 2323 to cooperate with the second wedge-shaped groove 23121 of the desired device.

[0150] The clamping device includes an upper wedge wall 23222 and a lower wedge wall 23223 at an angle with the upper wedge wall 23222.

[0151] The T-shaped hole 23211 includes oppositely arranged bosses 23212 so that the head is arranged thereon.

[0152] The lower surface of the upper wedge wall 23222 is in the same plane as the lower surface of the boss 23212 and the lower surface of the inclined middle part so as to press the first layer 1.

[0153] The first layer is a photovoltaic panel.

[0154] The photovoltaic panel includes the photovoltaic panel itself 11 and the photovoltaic panel frame 12 on which the photovoltaic panel itself 11 is placed.

[0155] The photovoltaic panel frame 12 includes a lower flat edge 121 which, when installed, is in contact with the lower surface of the upper wedge wall 23222.

[0156] The desired device includes a bracket 231.

[0157] According to the preferred embodiment of the present application, as shown in Figure 6 The central device connecting the first layer 1 and the second layer 2 includes a positioning recess 2315 cooperating with the second layer 2 and a bracket middle part 2313 on which the first layer is placed, and further includes a bracket connecting part 2311 allowing the intervention of external connecting devices outside the positioning recess 2315 and the bracket middle part 2313.

[0158] It also includes a bracket cooperating part 2312 connected to the positioning recess 2315.

[0159] The bracket cooperating part 2312 includes an upper inclined wall 23122 and a lower inclined wall 23123 arranged parallel and spaced apart from each other.

[0160] The bracket connecting part 2311 is provided with an upper bracket through hole 23111 to allow the passage of a bolt 4.

[0161] The bracket middle part 2313 includes a defined plate 2314 for abutting against the first layer 1.

[0162] The bracket middle part 2313 includes a bearing platform 2316 bearing the first layer 1.

[0163] At least one bracket middle cavity 23113 is arranged at the lower part of the bearing platform 2316 to allow the flow of liquid.

[0164] At least one bracket inner cavity 23112 is further provided below the lower inclined wall 23123 to allow liquid to flow through.

[0165] The positioning cavity 2315 includes a bracket inner leg 231121 connected with the top of the lower inclined wall 23123 and vertically downward, and a bracket outer leg 231122 parallel to the bracket inner leg 231121.

[0166] The bracket middle part 2313 is provided with a bracket connecting part 23111 at both ends in horizontal direction respectively.

[0167] According to another preferred embodiment of the present application, a device for collecting and guiding rainwater for solar power generation includes a first connecting part connected with a first fixing device 23 and a second connecting part connected with a third fixing device 22, and the first connecting part and the second connecting part are integrally connected vertically through a concave connecting part in a rainwater containing cavity containing rainwater.

[0168] Has a U-shaped cross section as a whole.

[0169] Includes a first branch 213 and a second branch 214 arranged in parallel and spaced apart, which are respectively provided with the first connecting part, the second connecting part and the concave connecting part.

[0170] The first connecting part is an upper part 82, the second connecting part is a lower part 83, and the concave connecting part is a middle part 81, and the highest point and the lowest point of the middle part 81 respectively exceed the lowest point of the upper part 82 and the highest point of the lower part 83 so as to form a wedge-shaped protrusion 811.

[0171] The upper part includes a horizontal positioning part 821 so as to cooperate with the first fixing device.

[0172] The upper part 82 includes an upper recessed groove 822 so as to cooperate with a lower wedge wall 23223 of the first fixing device 23.

[0173] The lower part 83 includes a lower recessed groove 832 so as to cooperate with a first inclined wall 2231 of the third fixing device 22.

[0174] Further includes a closed bottom 212 connecting the first branch 213 and the second branch 214.

[0175] A second layer 2 including a plurality of the above-mentioned devices for collecting and guiding rainwater for solar power generation.

[0176] Supports the first layer below and collects and guides rainwater.

[0177] The preferred embodiments of the utility model are exemplarily given above with the aid of drawings, but those skilled in the art should understand that within the protection scope of the appended claims, those skilled in the art can form new technical solutions by adding features, combining features and the like.

Claims

1. A device for collecting and guiding rainwater for solar power generation, comprising a first connection portion connected to a first fixing device (23) and a second connection portion connected to a third fixing device (22), characterized in that: The first connection portion and the second connection portion are vertically connected into one piece through a connection portion that is recessed into the rainwater receiving chamber for receiving rainwater.

2. The device for collecting and guiding rainwater for solar power generation according to claim 1, characterized in that: It has an overall U-shaped cross section.

3. The device for collecting and guiding rainwater for solar power generation according to claim 2, characterized in that: It comprises a first branch (213) and a second branch (214) which are arranged in parallel and spaced apart and are respectively provided with the first connecting portion, the second connecting portion and the concave connecting portion.

4. The device for collecting and guiding rainwater for solar power generation according to claim 3, characterized in that: The first connecting portion is the upper portion (82), the second connecting portion is the lower portion (83), and the concave connecting portion is the middle portion (81). The highest point and the lowest point of the middle portion (81) respectively exceed the lowest point of the upper portion (82) and the highest point of the lower portion (83) to form a wedge-shaped protrusion (811).

5. The device for collecting and guiding rainwater for solar power generation according to claim 4, characterized in that: The upper portion (82) includes a horizontal positioning portion (821) for cooperating with the first fixing device (23).

6. The device for collecting and guiding rainwater for solar power generation according to claim 5, characterized in that: The upper portion (82) includes an upper sunken groove (822) to cooperate with the lower wedge wall (23223) of the first fixing device (23).

7. The device for collecting and guiding rainwater for solar power generation according to claim 6, characterized in that: The lower portion (83) includes a lower sunken groove (832) to cooperate with the first inclined wall (2231) of the third fixing device (22).

8. The device for collecting and guiding rainwater for solar power generation according to claim 3, characterized in that: It also includes a closed bottom (212) connecting the first branch (213) and the second branch (214).

9. A second layer (2) of a device for collecting and directing rainwater for solar power generation, characterized in that The second layer (2) comprises a plurality of rainwater collecting and guiding devices for solar power generation according to any one of claims 1 to 8.

10. The second layer (2) according to claim 9, characterized in that Supports the first layer (1) underneath and collects and directs rainwater.