Heat exchange conduction fin for solar heat collector
Through the improved connection design of heat absorption conduction fins and heat collector body, the gap problem between the fins and the inner wall is solved, and a close fit is achieved, the heat exchange efficiency and fluid uniformity are improved, and the overall performance of the heat exchanger is enhanced.
Patent Information
- Application Number
- CN202422746361.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-11-12
AI Technical Summary
The gap between the existing heat transfer conduction fins and the inner wall of the heat collector is large, resulting in low heat conduction efficiency, heat loss and fluid vortex, affecting the heat transfer effect.
The design of heat absorption conduction fins and heat collecting pipe body is adopted. The heat collecting pipe head is closely connected to the fins. The clamping tab and the clamping chamber ensure free assembly and enhance fitting compactness.
It improves heat exchange efficiency, reduces heat loss and fluid vortex, ensures uniform flow of fluid, and improves the overall performance of the heat exchanger.
Smart Images

Figure CN223307110U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of solar heat collectors, in particular to a heat exchange conduction fin used for a solar heat collector. Background Art
[0002] A solar thermal collector is a device that utilizes solar energy, primarily converting solar radiation into heat. It is widely used in hot water supply, heating, and other applications requiring thermal energy. Conduction fins are devices used to improve heat exchange efficiency and are widely used in heat exchangers, air conditioners, cooling systems, and other thermal management devices. Their primary function is to increase the heat exchange surface area for more efficient heat conduction and convection.
[0003] In existing technologies, some heat transfer fins utilize a fixed connection, resulting in gaps between the fins and the inner wall of the collector. This gap not only reduces heat transfer efficiency but also causes heat loss and fluid eddy currents, thereby impacting the overall heat exchange performance of the system. Furthermore, poor contact between the fins and the inner wall can lead to uneven coolant flow, further reducing heat transfer efficiency. A heat transfer fin for a solar collector is now proposed. Utility Model Content
[0004] In order to make up for the above shortcomings, the utility model provides a heat exchange conductive fin for a solar collector, aiming to improve the problem in the prior art that some heat exchange conductive fins cannot fit tightly and compactly to the inner wall and can rotate and retract freely during assembly.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A heat exchange conduction fin for a solar thermal collector, comprising a heat absorbing conduction fin, a heat collecting tube body disposed between two of the heat absorbing conduction fins, two heat collecting tube heads fixedly connected at both ends of the heat collecting tube body, a heat collecting chamber formed in a semicircular shape around one end of the heat absorbing conduction fin, a retaining chamber formed in a semicircular shape around one end of the heat absorbing conduction fin, and a retaining piece fixedly connected to one side of the heat absorbing conduction fin;
[0007] As a further description of the above technical solution:
[0008] The exterior of the heat collecting pipe head is in contact with the two heat absorbing and conducting fins, and the exteriors of the plurality of positioning pieces are in contact with the positioning pieces.
[0009] The utility model has the following beneficial effects:
[0010] In the utility model, the heat collecting tube body and the inner wall of the heat collecting tube in the heat collector are tightly and compactly fitted together by the integral structural retaining piece, retaining chamber and heat collecting tube head, so that the heat collecting tube can be rotated and extended freely during assembly, and the reliability is high, and the functional characteristics and efficiency advantages are strong. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a three-dimensional schematic diagram of a heat transfer fin for a solar thermal collector proposed in the present invention;
[0012] Figure 2 This is an exploded view of the structure of a heat transfer fin for a solar collector proposed in the present invention;
[0013] Figure 3 This is a state diagram of the heat absorbing and conducting fins in the second embodiment of the heat exchanging and conducting fins for a solar thermal collector proposed by the present invention;
[0014] Figure 4 This is a state diagram of the heat absorbing and conducting fins in the second embodiment of the heat exchanging and conducting fins for a solar thermal collector proposed by the present invention;
[0015] Figure 5 This is a state diagram of the heat absorbing and conducting fins in the second embodiment of the heat exchanging and conducting fins for a solar thermal collector proposed by the present invention;
[0016] Figure 6 This is a state diagram of the heat absorbing and conducting fins in the second embodiment of the heat exchanging and conducting fins for a solar thermal collector proposed by the present invention;
[0017] Figure 7 This is a state diagram of the heat absorbing and conducting fins in the second embodiment of the heat exchanging and conducting fins for a solar thermal collector proposed by the present invention;
[0018] Figure 8 This is a state diagram of the heat absorbing and conducting fins in the second embodiment of the heat exchanging and conducting fins for a solar thermal collector proposed by the present invention.
[0019] Legend:
[0020] 1. Heat-absorbing and conducting fins; 2. Positioning plates; 3. Heat-collecting chamber; 4. Positioning chamber; 5. Heat-collecting tube body; 6. Heat-collecting tube head. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] Embodiment 1;
[0023] Reference Figure 1 、 Figure 2 , a heat exchange conduction fin for a solar thermal collector, including a heat absorbing conduction fin 1, the heat absorbing conduction fin 1 is in the shape of a long thin sheet as a whole, and is made of a metal material with good thermal conductivity, such as aluminum alloy. A heat collecting tube body 5 is arranged between the two heat absorbing conduction fins 1, and the heat collecting tube body 5 is in the shape of a cylindrical tube, and is made of high borosilicate glass or other materials with good light transmittance and heat resistance. Two heat collecting tube heads 6 are fixedly connected at both ends of the heat collecting tube body 5. The heat collecting tube head 6 is a metal connecting component, usually made of stainless steel and other materials, and is truncated into a cone shape. One end is tightly sealed and connected to the end of the heat collecting tube body 5 to ensure the sealing and stability of the connection, prevent heat loss and medium leakage, and the surface is rust-proofed and plated with other corrosion-resistant coatings. One end of the sheet 1 is semicircularly surrounded to form a heat collecting chamber 3. The heat collecting chamber 3 is a semi-enclosed space formed by the semicircular surrounding of one end of the heat absorbing conductive fin 1. Its shape is similar to a semicircular pipe cross-section. One end of the heat absorbing conductive fin 1 is semicircularly surrounded to form a clamping chamber 4. The clamping chamber 4 plays a certain role in heat insulation and protection, reduces heat loss to the surrounding environment, and improves the overall performance of the collector. One side of the heat absorbing conductive fin 1 is fixedly connected to a clamping sheet 2. The clamping sheet 2 is a small sheet structure and is also made of metal material. It is the same material as the heat absorbing conductive fin 1 to ensure good thermal conductivity and connection strength. The outside of the heat collecting pipe head 6 is in contact with the two heat absorbing conductive fins 1, and the outsides of multiple clamping sheets 2 are in contact with the clamping sheet 2.
[0024] Embodiment 2:
[0025] Reference Figures 3 and 4 A heat transfer fin for a solar thermal collector includes a heat transfer fin 1, a heat collecting tube 5 is provided between two heat transfer fins 1, two heat collecting tube heads 6 are fixedly connected to the two ends of the heat transfer tube 5, a heat collecting chamber 3 is formed in a semicircular shape around one end of the heat transfer fin 1, a locking chamber 4 is formed in a semicircular shape around one end of the heat transfer fin 1, and a locking piece 2 is fixedly connected to one side of the heat transfer fin 1. Figure 3 In this case, it is designed to be similar to the Bagua diagram, so as to achieve a tight and compact, strong heat collection effect, such as Figure 4 In this case, it is designed into an integrated shape, so that it can be compact and assembled, rotated and extended freely, such as Figure 5 In this case, the positioning chamber 4 is designed to have a notched shape, so that the heat collecting pipe head is connected more compactly and the heat collection is faster. Figure 8 In this case, it is designed to be similar to two M-types, which seal both ends of the heat collecting tubes, making the heat collection effect more significant.
[0026] Working principle: First, sunlight shines on the heat-absorbing and conductive fins 1. Since the heat-absorbing and conductive fins 1 are made of a metal material with good thermal conductivity (such as aluminum alloy), they quickly absorb and conduct the heat generated by solar energy. Then, the heat is transferred to the heat collecting tube body 5. The heat collecting tube body 5 is made of high borosilicate glass or other materials with good light transmittance and heat resistance, which effectively absorbs and stores heat. At the same time, the two ends of the heat collecting tube body 5 are fixedly connected to the two heat collecting tube heads 6. The heat collecting tube heads 6 are made of metal and are rust-proof treated and coated with other corrosion-resistant coatings. One end of the heat collecting tube head 6 is tightly sealed and connected to the end of the heat collecting tube body 5, which can prevent heat from being lost at the connection and also prevent medium leakage. At one end of the heat-absorbing and conductive fins 1, a semicircular heat collecting chamber 3 is formed, which is similar to a semicircular pipe cross-section and can effectively absorb and conduct heat. At the other end of the heat-absorbing conductive fin 1, a semicircular retaining cavity 4 is formed. This provides insulation and protection, reducing heat loss to the surrounding environment and thus improving the overall performance of the collector. Furthermore, a retaining plate 2 is formed on one side of the heat-absorbing conductive fin 1. This retaining plate 2 is made of the same metal material as the heat-absorbing conductive fin 1, ensuring good thermal conductivity and connection strength. The exterior of the heat-collecting pipe head 6 contacts the two heat-absorbing conductive fins 1, and the exteriors of the multiple retaining plates 2 contact this retaining plate 2, ensuring efficient heat transfer.
[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A heat transfer fin for a solar thermal collector, comprising a heat transfer fin (1), characterized in that: A heat collecting tube body (5) is provided between the two heat absorbing and conducting fins (1), two heat collecting tube heads (6) are fixedly connected to the two ends of the heat collecting tube body (5), a heat collecting chamber (3) is formed in a semicircular shape around one end of the heat absorbing and conducting fins (1), a locking chamber (4) is formed in a semicircular shape around one end of the heat absorbing and conducting fins (1), and a locking plate (2) is fixedly connected to one side of the heat absorbing and conducting fins (1).
2. The heat transfer fin for a solar thermal collector according to claim 1, characterized in that: The exterior of the heat collecting pipe head (6) is in contact with the two heat absorbing and conducting fins (1), and the exteriors of the plurality of positioning pieces (2) are in contact with the positioning pieces (2).