Embedded photovoltaic panel and lamp pole integrated structure for street lamp
By integrating embedded photovoltaic panels with the light pole, the problems of non-compact structure, susceptibility to wind loads, and insufficient heat dissipation in traditional photovoltaic street light systems are solved, achieving a photovoltaic street light design with high reliability and low maintenance costs, and enhancing the application capabilities of smart cities.
Patent Information
- Application Number
- CN202520384509.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-06
AI Technical Summary
Traditional photovoltaic street light systems suffer from problems such as non-compact structure, susceptibility to wind loads, easy corrosion of wires, and insufficient heat dissipation design when connecting photovoltaic modules to light poles. These issues result in high reliability and maintenance costs, failing to meet the needs of smart cities.
The structure integrates embedded photovoltaic panels with the light pole, including a curved photovoltaic layer, a hidden busbar, a thermally conductive filling layer, a waterproof plug, a controller, and a heat dissipation base. This achieves a compact connection between the photovoltaic modules and the light pole and hides the internal wiring. Combined with a composite heat dissipation path optimization design, it improves the structure's wind resistance and heat dissipation efficiency.
It significantly improves structural compactness and wind resistance, achieves IP68 protection, extends the service life of photovoltaic modules and LED lights, and reduces maintenance costs.
Smart Images
Figure CN223953953U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to outdoor street lamp field, concretely relates to a kind of embedded photovoltaic panel and lamp pole integration structure for street lamp. BACKGROUND
[0002] In the current traditional photovoltaic street lamp system, there are many problems in the connection mode and overall structure design of photovoltaic module and lamp pole, which leads to obvious deficiencies in practical application. In the traditional design, the photovoltaic module is usually installed on the top of the lamp pole through the external hanging bracket. This way not only has a bulky appearance and occupies a large space, but also is prone to structural instability in bad weather due to high wind load. In addition, the wires and electrical connection parts are mostly designed to be exposed, which lacks protection and is easily eroded by rain, dust and ultraviolet light, leading to insulation aging or short circuit, increasing the frequency and cost of maintenance. At the same time, the defects in the heat dissipation design make the photovoltaic module and LED lamp run at high temperature, and the heat accumulation not only reduces the power generation efficiency and lighting performance, but also accelerates the aging of the module and shortens the service life. These problems expose the deficiencies of traditional photovoltaic street lamps in structural integration, protection performance and heat dissipation efficiency, which cannot meet the needs of smart city construction for high reliability, low maintenance cost and efficient use of green energy. If these technical bottlenecks can be solved through innovative design, the service life and operating efficiency of the product will be significantly improved, providing stronger support for the promotion of smart cities and green energy, and also enhancing the market competitiveness of related enterprises.
[0003] In order to solve the above problems, we have made a series of improvements. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims to provide a kind of embedded photovoltaic panel and lamp pole integration structure for street lamp to overcome the above-mentioned shortcomings and deficiencies existing in prior art.
[0005] An embedded photovoltaic panel and lamp pole integration structure for street lamp, comprising: a lamp pole body, a curved photovoltaic layer, a hidden bus duct, a heat-conducting filler layer, a waterproof plug, a controller, a heat dissipation base and a photovoltaic wire, the curved photovoltaic layer is fixedly connected with the outer wall of the lamp pole body, the heat-conducting filler layer is arranged between the curved photovoltaic layer and the lamp pole body, the hidden bus duct is arranged inside the lamp pole body, the hidden bus duct is connected with the controller through the waterproof plug, the controller is fixed to the inner side of the bottom of the lamp pole body, the heat dissipation base is integrated on the inner wall of the top of the lamp pole body, the photovoltaic wire penetrates through the hidden bus duct, and the photovoltaic wire connects the curved photovoltaic layer and the controller.
[0006] The hidden bus groove comprises a longitudinal groove, a wire buckle and a sealing cover plate, the longitudinal groove extends axially along an inner wall of the lamp pole body, the wire buckle is fixed to an inner wall of the longitudinal groove, and the sealing cover plate is connected with an opening end of the longitudinal groove through a clamping structure.
[0007] Further, the heat dissipation base comprises an aluminum alloy substrate, a heat-conductive silica gel layer and heat dissipation fins, the aluminum alloy substrate is welded to the inner wall of the lamp pole body, the heat dissipation fins are connected to the aluminum alloy substrate through bolts, and the heat-conductive silica gel layer is arranged between the aluminum alloy substrate and the heat dissipation fins.
[0008] The utility model discloses the beneficial effect that:
[0009] Compared with the prior art, the utility model discloses compact structure and wind resistance are improved, and IP68 level protection is realized simultaneously through the hidden bus groove, and environmental adaptability and reliability are enhanced obviously. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is the structure schematic drawing of the utility model.
[0011] Figure 2 It is the structure schematic drawing of the hidden bus groove of the utility model.
[0012] Figure 3 It is the structure schematic drawing of the heat dissipation base of the utility model.
[0013] REFERENCE SIGNS
[0014] Lamp pole body 100, curved surface photovoltaic layer 200, hidden bus groove 300, longitudinal groove 310, wire buckle 320 and sealing cover plate 330.
[0015] Heat-conductive filling layer 400, waterproof plug 500, controller 600, heat dissipation base 700, aluminum alloy substrate 710, heat-conductive silica gel layer 720, heat dissipation fin 730 and photovoltaic wire 800. DETAILED DESCRIPTION
[0016] The utility model will be further explained in connection with specific implementation examples. It should be understood that the following examples are only used to illustrate the utility model and are not used to limit the scope of the utility model.
[0017] Example 1
[0018] Figure 1 It is the structure schematic drawing of the utility model. Figure 2 It is the structure schematic drawing of the hidden bus groove of the utility model. Figure 3The structure diagram of the heat dissipation base.
[0019] As Figure 1 shown, an embedded photovoltaic panel and lamp pole integrated structure for street lamp, comprising: lamp pole body 100, curved photovoltaic layer 200, hidden bus duct 300, heat-conducting filling layer 400, waterproof plug 500, controller 600, heat dissipation base 700 and photovoltaic wire 800, the curved photovoltaic layer 200 is fixedly connected with the outer wall of the lamp pole body 100, the heat-conducting filling layer 400 is arranged between the curved photovoltaic layer 200 and the lamp pole body 100, the hidden bus duct 300 is arranged in the lamp pole body 100, the hidden bus duct 300 is connected with the controller 600 through the waterproof plug 500, the controller 600 is fixed to the bottom inner side of the lamp pole body 100, the heat dissipation base 700 is integrated on the top inner wall of the lamp pole body 100, the photovoltaic wire 800 penetrates the hidden bus duct 300, and the photovoltaic wire 800 is connected with the curved photovoltaic layer 200 and the controller 600.
[0020] As Figure 2 shown, the hidden bus duct 300 comprises: longitudinal groove 310, wire buckle 320 and sealing cover plate 330, the longitudinal groove 310 extends along the inner wall of the lamp pole body 100 in the axial direction, the wire buckle 320 is fixed to the inner wall of the longitudinal groove 310, and the sealing cover plate 330 is connected with the opening end of the longitudinal groove 310 through a clamping structure.
[0021] As Figure 3 shown, the heat dissipation base 700 comprises: aluminum alloy substrate 710, heat-conducting silica gel layer 720 and heat dissipation fin 730, the aluminum alloy substrate 710 is welded with the inner wall of the lamp pole body 100, the heat dissipation fin 730 is connected with the aluminum alloy substrate 710 through bolts, and the heat-conducting silica gel layer 720 is arranged between the aluminum alloy substrate 710 and the heat dissipation fin 730.
[0022] The utility model discloses an innovation point is, cancel the traditional external hanging support, instead, adopt curved photovoltaic layer 200 and wrap on the lamp pole body 100, like this not only occupies small space, and the wind resistance in bad weather also has been greatly strengthened. In addition, since the curved photovoltaic layer 200 is used as the structure of absorbing sunlight, therefore, its connecting circuit can also be buried in the inside. The utility model discloses the design of hidden bus duct 300, all built-in in the lamp pole body 100, or covered by the curved photovoltaic layer 200 to the traditional external circuit. At the same time, such structure, in the protection design, also has more play room, for example, the increase of sealing cover plate 330 and waterproof plug 500 can guarantee the safety of the circuit. But reference other fields, this embedded photovoltaic can produce a large amount of heat in use. Therefore, compared with the traditional photovoltaic street lamp, the utility model also needs to design a heat dissipation system. Specific details are as follows:
[0023] Structure integration and wind resistance design of the curved photovoltaic layer 200: The traditional externally-hung photovoltaic panel is connected to the lamp pole through an independent support, and stress concentration is easily caused under the action of wind load, leading to fracture. The curved photovoltaic layer 200 of the utility model adopts a flexible CIGS thin-film photovoltaic material, and the curved photovoltaic layer 200 is directly attached to the spiral curved outer wall of the lamp pole body 100 through a hot-pressing process (120℃±5℃, 0.5MPa pressure), forming an integrated structure. The edge of the photovoltaic layer is mechanically locked by an aluminum alloy edge covering, and is fixed to the lamp pole body 100 through a countersunk screw. The design makes the curved photovoltaic layer 200 and the lamp pole body 100 jointly bear the wind load, reduces the wind resistance through the curved flow distribution, and the actual measured wind resistance capacity is improved by 50% (up to 12-grade wind speed). At the same time, the covered area of the photovoltaic layer is increased by 35% compared with the planar embedding scheme, and the power density is improved to 150W / m 2 .
[0024] However, the design structure has some problems, so we also have to fill the gap between the curved photovoltaic layer 200 and the lamp pole body 100 with a heat-conducting filling layer 400. The heat generated by the operation of the curved photovoltaic layer 200 is quickly transmitted to the lamp pole body 100 through the double-component heat-conducting silicone of the heat-conducting filling layer 400, forming a continuous heat dissipation path, avoiding the heat resistance accumulation caused by the air gap of the traditional externally-hung photovoltaic panel, and the actual measured temperature rise of the photovoltaic layer can be reduced by 15-20℃. The heat-conducting filling layer 400 makes the overall structure obtain stress buffering, and the 1.5-2mm thickness fills the micro gap between the photovoltaic layer and the lamp pole, absorbs the deformation stress caused by wind load or vibration through elastic deformation, prevents the cracking of the thin-film battery caused by rigid contact (shear strength ≥1.2MPa).
[0025] Sealing and wire management of the hidden bus groove 300: The traditional photovoltaic wire of the street lamp is exposed on the surface of the lamp pole, which is easily affected by ultraviolet aging and rainwater erosion. The utility model is provided with an aluminum alloy extrusion formed longitudinal groove 310 on the inner wall of the lamp pole body 100 in the axial direction, the inner wall of the groove is pre-punched with a positioning hole to fix the wire buckle 320, the photovoltaic wire 800 is fixed after being layered through the buckle, the opening of the groove is closed by a transparent sealing cover plate 330, the edge EPDM rubber strip has a compression rate of 30%-40%, and IP68 protection grade is achieved. This structure makes the wire hidden in the lamp pole throughout, and the cover plate can be quickly disassembled and maintained, and the maintenance efficiency is improved by 70% compared with the traditional glue sealing process.
[0026] Thermal management optimization of the heat dissipation base 700: In view of the heat generated by the high-power LED module and the photovoltaic layer, the traditional scheme adopts fixed fins for passive heat dissipation, and the heat dissipation efficiency is restricted by the environmental temperature. The utility model is provided with an aluminum alloy base plate 710 (thickness 8mm) of 6063-T6 welded on the inner wall of the top of the lamp pole, the outer surface of the base plate is coated with a heat-conducting silicone layer 720, and the heat dissipation fins 730 of the expandable type are fixed through M4 bolts. The fins are made of 1050 aluminum alloy stamping, and are arranged vertically to match the heat airflow rising path in the lamp pole. High-efficiency cooling is achieved.
[0027] When encountering extreme wind load, the curved photovoltaic layer 200 of the lamp pole body 100 reduces wind pressure through flow guiding effect, and the sealing cover plate 330 of the internal hidden bus duct 300 further compresses the guide rail under the action of air pressure difference, so that self-enhancing sealing is realized. Comparative tests show that the displacement amount of the utility model under the same wind speed is only 42% of that of the traditional structure, and there is no water seepage phenomenon under the rainstorm environment, which significantly improves the reliability of the photovoltaic street lamp in the harsh environment such as coastal area and mountainous area.
[0028] Compared with the prior art, the utility model improves the compactness and wind resistance, and adopts the hidden bus duct to realize IP68 level protection, so that the environmental adaptability and reliability are significantly improved. The optimization design of the composite heat dissipation path effectively improves the heat dissipation efficiency, prolongs the service life of the photovoltaic module and the LED lamp, and reduces the maintenance cost.
[0029] The specific embodiments of the utility model have been described above, but the utility model is not limited thereto, and various changes can be made without departing from the purpose of the utility model.
Claims
1. An embedded photovoltaic panel integrated structure with a lamp pole for a street lamp, characterized in that, Include: The lamp pole body (100), the curved photovoltaic layer (200), the hidden bus groove (300), the heat-conducting filling layer (400), the waterproof plug (500), the controller (600), the heat dissipation base (700) and the photovoltaic wire (800), the curved photovoltaic layer (200) is fixedly connected with the outer wall of the lamp pole body (100), the curved photovoltaic layer (200) and the lamp pole body (100) are provided with the heat-conducting filling layer (400), the lamp pole body (100) is internally provided with the hidden bus groove (300), the hidden bus groove (300) is connected with the controller (600) through the waterproof plug (500), the controller (600) is fixed to the bottom inside of the lamp pole body (100), the heat dissipation base (700) is integrated on the top inner wall of the lamp pole body (100), the photovoltaic wire (800) is penetrated in the hidden bus groove (300), the photovoltaic wire (800) is connected with the curved photovoltaic layer (200) and the controller (600); Wherein, the hidden bus groove (300) includes: longitudinal groove (310), wire buckle (320) and sealing cover plate (330), the longitudinal groove (310) extends along the inner wall of the lamp pole body (100) in the axial direction, the wire buckle (320) is fixed to the inner wall of the longitudinal groove (310), the sealing cover plate (330) is connected with the opening end of the longitudinal groove (310) through the clamping structure.
2. The embedded photovoltaic panel and pole integrated structure for street light according to claim 1, wherein, The heat dissipation base (700) includes: aluminum alloy substrate (710), heat-conducting silica gel layer (720) and heat dissipation fin (730), the aluminum alloy substrate (710) is welded with the inner wall of the lamp pole body (100), the heat dissipation fin (730) is connected with the aluminum alloy substrate (710) through the bolt, the heat-conducting silica gel layer (720) is arranged between the aluminum alloy substrate (710) and the heat dissipation fin (730).