A roof waterproof type solar flat plate collector
By installing a combination of trapezoidal fastening strips and clamping blocks inside the outer frame of the solar flat plate collector, the problem of sealing failure caused by aging of the sealing strip is solved, achieving continuous sealing effect and equipment durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUNSHORE SOLAR ENERGY IND
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-23
AI Technical Summary
The sealing strips of traditional solar flat plate collectors are easily affected by the outdoor environment and age, leading to sealing failure. Rainwater seeps in, causing corrosion of the collector plate and moisture in the insulation layer, reducing heat collection efficiency and equipment life.
A roof-mounted waterproof solar flat plate collector was designed. It uses a rubber sealing strip snapped into a sealing groove inside the outer frame, and combines a fastening strip with a trapezoidal cross-section that is longer at the top and narrower at the bottom with a clamping block. By utilizing the wedge-tightening principle of the trapezoidal structure, mechanical pressure is applied to keep the sealing surface tightly fitted.
Even if the sealing strip ages, it can still maintain the sealing performance through mechanical clamping force, dynamically compensate for the sealing effect, prevent rainwater from seeping in, and improve the equipment's sealing performance and service life.
Smart Images

Figure CN224398036U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of solar flat plate technology, specifically a roof waterproof solar flat plate collector. Background Technology
[0002] Solar flat-plate collectors are important equipment in the field of building energy conservation and are widely used in roof hot water supply, heating and other scenarios. Traditional collectors usually adopt a structure in which the outer frame and the collector plate are directly spliced together, and their waterproof design mostly relies on a single sealing strip to achieve a seal.
[0003] However, this structure has revealed some drawbacks in long-term use: In existing technology, the outer frame and the collector plate are only waterproofed by a simple rubber sealing strip. However, the sealing strip is easily affected by the outdoor environment (such as ultraviolet radiation, temperature fluctuations, and rainwater erosion), causing it to age and loosen, leading to seal failure. When the sealing strip loses its elasticity or deforms, rainwater can easily seep in from the joint between the outer frame and the collector plate, causing corrosion of the collector plate and moisture absorption of the insulation layer, severely reducing heat collection efficiency and equipment lifespan.
[0004] To address these issues, we designed a roof-mounted waterproof solar flat-plate collector. Utility Model Content
[0005] The purpose of this utility model is to provide a roof-mounted waterproof solar flat plate collector to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model provides a roof waterproof solar flat plate collector, including an outer frame and a collector plate. The outer frame has an installation groove, and the collector plate is installed in the installation groove. The top edge of the installation groove has a sealing groove, and a sealing strip is snapped into the sealing groove. The sealing strip is made of rubber, and the inner side of the sealing strip is in contact with the outer edge of the collector plate. A fastening strip abuts against the outer side of the sealing strip, and a clamping block abuts against the outer side of the fastening strip. The clamping block is snapped between the fastening strip and the inner wall of the sealing groove.
[0007] Furthermore, the cross-section of the fastening strip is a trapezoid that is longer at the top and narrower at the bottom.
[0008] Furthermore, the number of fastening strips is four, and the four fastening strips are respectively arranged on the outer periphery of the sealing strip.
[0009] Furthermore, the two ends of the fastening strip are fixedly connected to rotating shafts, which are rotatably connected to the inner walls of both sides of the sealing groove.
[0010] Furthermore, a hinge seat is fixedly connected to the outer edge of the top of the sealing groove, a connecting plate is hinged to the hinge seat, and the other end of the connecting plate is hinged to the clamping block.
[0011] Furthermore, the outer frame is made of aluminum alloy, and the surface material of the heat collection plate is tempered glass.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This device has a fastening strip with a trapezoidal cross-section that is longer at the top and narrower at the bottom set in the sealing groove of the outer frame. By rotating the clamping block, it is clamped between the fastening strip and the inner wall of the sealing groove. Utilizing the wedge-tightening principle of the trapezoidal structure, the fastening strip is pressed inward. This design can apply continuous mechanical pressure to the rubber sealing strip. Even if the sealing strip becomes slightly loose due to aging, it can still maintain a tight fit of the sealing surface through mechanical clamping force, dynamically compensating for the sealing performance. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the overall external structure of this utility model;
[0014] Figure 2 This is an exploded view of the entire utility model;
[0015] Figure 3 This is a cross-sectional view of the front of the present invention;
[0016] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.
[0017] In the diagram: 1. Outer frame; 2. Heat collector plate; 3. Mounting groove; 4. Sealing groove; 5. Sealing strip; 6. Fastening strip; 7. Rotating shaft; 8. Hinge seat; 9. Connecting plate; 10. Clamping block. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figures 1-4This utility model provides a technical solution: a roof waterproof solar flat plate collector, including an outer frame 1 and a collector plate 2. An installation groove 3 is provided in the outer frame 1, and the collector plate 2 is installed in the installation groove 3. A sealing groove 4 is provided at the top edge of the installation groove 3. A sealing strip 5 is snapped into the sealing groove 4. The sealing strip 5 is made of rubber. The inner side of the sealing strip 5 is in contact with the outer edge of the collector plate 2. A fastening strip 6 abuts against the outer side of the sealing strip 5. The cross-section of the fastening strip 6 is a trapezoid with a longer top and a narrower bottom. A clamping block 10 abuts against the outer side of the fastening strip 6. The clamping block 10 is snapped between the fastening strip 6 and the inner wall of the sealing groove 4. There are four fastening strips 6, which are respectively arranged on the outer periphery of the sealing strip 5.
[0020] In practice, by rotating the clamping block 10, the connecting plate 9 is driven to rotate around the hinge seat 8. Since the cross-section of the fastening strip 6 is a trapezoid with a longer top and a narrower bottom, when the clamping block 10 is rotated to clamp between the fastening strip 6 and the inner wall of the sealing groove 4, the clamping block 10 applies an inward squeezing force to the outer side of the fastening strip 6.
[0021] See Figures 1-4 The two ends of the fastening strip 6 are fixedly connected to the rotating shaft 7, which is rotatably connected to the inner walls of both sides of the sealing groove 4.
[0022] See Figures 1-4 A hinge seat 8 is fixedly connected to the outer edge of the top of the sealing groove 4. A connecting plate 9 is hinged to the hinge seat 8. The other end of the connecting plate 9 is hinged to the clamping block 10.
[0023] In specific implementation, based on the above implementation, the rotating shafts 7 at both ends are rotatably connected to the inner walls on both sides of the sealing groove 4, so that the fastening strip 6 can rotate inward around the rotating shaft 7. The clamping block 10 is hinged to the hinge seat 8 through the connecting plate 9. When the connecting plate 9 is outside the hinge seat 8, it is in an unclamped state, and the fastening strip 6 has not yet applied pressure to the sealing strip 5. When the connecting plate 9 rotates inward to the hinge seat 8, the clamping block 10 abuts against the fastening strip 6 and is in a clamped state.
[0024] See Figures 1-4 The outer frame 1 is made of aluminum alloy, and the surface material of the heat collection plate 2 is tempered glass.
[0025] Working principle: Before use, the heat collection plate 2 is embedded into the mounting groove 3 of the outer frame 1. Then, the inner side of the sealing strip 5 in the sealing groove 4 is fitted with the outer edge of the heat collection plate 2 to initially form a basic seal. Four fastening strips 6 are placed on the outer sides of the sealing strip 5, and the rotating shafts 7 at both ends are rotatably connected to the inner walls on both sides of the sealing groove 4, allowing the fastening strips 6 to rotate inward around the rotating shafts 7. At this time, the clamping block 10 is in an unclamped state, and the fastening strips 6 have not yet applied pressure to the sealing strip 5.
[0026] Rotating the clamping block 10 causes the connecting plate 9 to rotate around the hinge seat 8. Since the other end of the connecting plate 9 is hinged to the clamping block 10, the rotation of the clamping block 10 generates a lateral thrust. The fastening strip 6 has a trapezoidal cross-section that is longer at the top and narrower at the bottom. When the clamping block 10 is rotated to clamp between the fastening strip 6 and the inner wall of the sealing groove 4, the clamping block 10 applies an inward squeezing force to the outer side of the fastening strip 6. The squeezing force is transmitted through the fastening strip 6, causing it to rotate inward around the rotating shaft 7. Due to the trapezoidal structure's wider top and narrower bottom, the inner edge of the fastening strip 6 gradually moves towards the heat collection plate 2 during rotation. The inner side of the fastening strip 6 presses against the sealing strip 5, causing the rubber sealing strip 5 to undergo elastic deformation. This further improves the fit between its inner side and the edge of the heat collection plate 2, while its outer side is tightly squeezed against the inner wall of the sealing groove 4, forming multiple sealing barriers.
Claims
1. A roof-mounted waterproof solar flat-plate collector, comprising an outer frame (1) and a collector plate (2), characterized in that, An installation groove (3) is provided inside the outer frame (1). The heat collection plate (2) is installed in the installation groove (3). A sealing groove (4) is provided at the top edge of the installation groove (3). A sealing strip (5) is snapped into the sealing groove (4). The sealing strip (5) is made of rubber. The inner side of the sealing strip (5) is in contact with the outer edge of the heat collection plate (2). A fastening strip (6) abuts against the outer side of the sealing strip (5). A clamping block (10) abuts against the outer side of the fastening strip (6). The clamping block (10) is snapped between the fastening strip (6) and the inner wall of the sealing groove (4).
2. The roof-mounted waterproof solar flat-plate collector as described in claim 1, characterized in that: The cross-section of the fastening strip (6) is a trapezoid with a longer top and a narrower bottom.
3. A roof-mounted waterproof solar flat-plate collector as described in claim 2, characterized in that: The number of fastening strips (6) is four, and the four fastening strips (6) are respectively arranged on the outer periphery of the sealing strip (5).
4. A roof-mounted waterproof solar flat-plate collector as described in claim 3, characterized in that: The two ends of the fastening strip (6) are fixedly connected to the rotating shaft (7), which is rotatably connected to the inner walls of both sides of the sealing groove (4).
5. A roof-mounted waterproof solar flat-plate collector as described in claim 4, characterized in that: A hinge seat (8) is fixedly connected to the outer edge of the top of the sealing groove (4), and a connecting plate (9) is hinged on the hinge seat (8). The other end of the connecting plate (9) is hinged to the clamping block (10).
6. A roof-mounted waterproof solar flat-plate collector as described in claim 5, characterized in that: The outer frame (1) is made of aluminum alloy, and the surface material of the heat collection plate (2) is tempered glass.