Street lamp with anti-condensation function

Abstract

The utility model relates to road lighting technical field especially is a street lamp lamp with dew prevention function, including street lamp upper shell and lampshade lower shell, be equipped with heat dissipation fin and lens installation backplate between street lamp upper shell and lampshade lower shell, the surface fixedly connected with heat conduction main part of lens installation backplate, heat conduction main part and heat dissipation fin heat conduction nature fit, still inlaying has secondary heat conduction strip in lens installation backplate, the surface of lens installation backplate is equipped with condensation micro -groove and water collecting tank, be equipped with drying box in lampshade lower shell, the front end of water collecting tank is equipped with the porous flow guide rod that reaches the inside of drying box, in the utility model, the heat conduction grid that fits heat dissipation fin's heat conduction main part and the mutual cooperation of secondary heat conduction strip between the lens accessory in the device is formed, utilize the waste heat that the lamp generates when working, inhibit dew phenomenon, reduce dewing while guaranteeing internal dryness.

Description

Technical Field

[0001] This utility model relates to the field of road lighting technology, specifically to a street light fixture with anti-condensation function. Background Technology

[0002] When existing streetlights operate under conditions of large temperature differences between day and night or high humidity, their internal cavities, especially around optical components (such as lenses), are prone to reaching the dew point due to sudden temperature drops, leading to water vapor condensation and the formation of dewdrops. Condensation significantly affects the lighting effect of the lamps, accelerates the corrosion of internal metal components and the aging of plastic components, and threatens the lifespan and operational safety of the streetlights. Conventional methods for preventing condensation, such as placing solid desiccants to absorb moisture, have limited effectiveness and require periodic replacement. Therefore, this paper proposes a streetlight with anti-condensation functionality to address the above problems. Utility Model Content

[0003] The purpose of this utility model is to provide a street light fixture with anti-condensation function to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A street light fixture with anti-condensation function includes an upper housing and a lower housing. Heat dissipation fins and a lens mounting backplate are provided between the upper housing and the lower housing. A lamp bead lens is mounted on the lens mounting backplate. A heat-conducting body is fixedly connected to the surface of the lens mounting backplate, extending longitudinally along the lens mounting backplate and extending outwards. The heat-conducting body is thermally bonded to the heat dissipation fins. Secondary heat-conducting strips, spaced apart from the lamp bead lens, are also embedded within the lens mounting backplate. These secondary heat-conducting strips are perpendicular to and thermally connected to the heat-conducting body. Condensation microgrooves and a water collection trough are formed on the surface of the lens mounting backplate. A drying chamber is provided in the lower housing, and a porous guide rod penetrating into the drying chamber is provided at the front end of the water collection trough.

[0006] Preferably, the drying chamber contains a desiccant that absorbs moisture, and the portion of the porous guide rod that penetrates into the drying chamber is covered by the desiccant.

[0007] Preferably, a backplate mounting bracket is fixedly connected to the inner end face of the lower housing of the lampshade, and the backplate mounting bracket is fixedly connected to both ends of the lens mounting backplate in the length direction.

[0008] Preferably, the condensation microchannels are disposed on both sides of the secondary heat-conducting strip, and the water collection tank connects all the condensation microchannels on the same side of the lens mounting back plate.

[0009] Preferably, the walls of the coagulation micro-channel are hydrophobic, and the water collection channel and the porous guide rod are hydrophilic.

[0010] Preferably, the heat-conducting main body and the secondary heat-conducting strip are made of a material with high thermal conductivity.

[0011] Preferably, the surface of the secondary heat-conducting strip is provided with micro-protrusions to increase the heat-conducting area.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this invention, the heat-conducting main body attached to the heat dissipation fins and the secondary heat-conducting strips set in the lens accessory form a heat-conducting grid. This grid utilizes the waste heat generated during the lamp's operation to transfer heat to the lens mounting backplate and the lens itself, increasing their surface temperature and suppressing condensation. A path of condensation micro-groove-water collection tank-porous guide rod is used to collect and guide the dew condensed in lower temperature areas. This allows moisture generated within the device under special circumstances to more efficiently flow into the drying chamber and be absorbed by the desiccant, reducing condensation while ensuring internal dryness and increasing the desiccant's lifespan. These complementary actions enhance the product's reliability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This utility model Figure 1 A schematic diagram of the structure at point A;

[0016] Figure 3 This is a schematic diagram of the lens mounting backplate of this utility model;

[0017] Figure 4 This is a physical structural diagram of the present invention.

[0018] In the diagram: 1. Upper housing of street lamp; 2. Lower housing of lamp cover; 3. Heat dissipation fins; 4. Lens mounting backplate; 401. Backplate mounting bracket; 5. Lamp bead lens; 6. Heat-conducting body; 7. Secondary heat-conducting strip; 8. Condensation microgroove; 9. Water collection tank; 10. Perforated guide rod; 11. Drying oven. Detailed Implementation

[0019] 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.

[0020] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0021] Please see Figure 1-4 This utility model provides a technical solution:

[0022] A street light fixture with anti-condensation function includes an upper housing 1 and a lower housing 2. The lower housing 2 is made of high-transmittance tempered glass or polycarbonate (PC) material to ensure good light output efficiency. The upper housing 1 and the lower housing 2 are sealed together by a waterproof sealing ring to form a sealed inner cavity of the fixture. Heat dissipation fins 3 and a lens mounting backplate 4 are provided between the upper housing 1 and the lower housing 2. The heat dissipation fins 3 are aluminum fins that are tightly attached to the outer top of the upper housing 1 with thermally conductive silicone grease to dissipate the heat generated inside the fixture to the outside air. The lens mounting backplate 4 is fixed to the inner end face of the lower housing 2 by backplate mounting brackets 401 at both ends, and is set horizontally or at a slight angle. The backplate mounting bracket 401 is fixed to the threaded holes on the lower housing 2 of the lampshade with screws, ensuring the stable installation of the lens mounting backplate 4. The lens mounting backplate 4 itself is made of aluminum alloy plate with certain thermal conductivity. Multiple LED beads and corresponding LED bead lenses 5 are mounted in an array on the lens mounting backplate 4. A heat-conducting body 6 is fixedly connected to the surface of the lens mounting backplate 4. The heat-conducting body 6 extends longitudinally along the lens mounting backplate 4 and leads outward. The heat-conducting body 6 is thermally bonded to the heat dissipation fins 3, forming a heat dissipation fin from the L The main heat dissipation path from the heat source of the LED bead to the external environment is as follows: a secondary heat-conducting strip 7 is also embedded in the lens mounting back plate 4, which is spaced apart from the LED bead lens 5. The secondary heat-conducting strip 7 is perpendicular to the heat-conducting body 6 and is heat-conductingly connected to it, thus forming a highly efficient grid-like heat-conducting network covering the entire back plate together with the heat-conducting body 6. A condensation microgroove 8 and a water collection tank 9 are opened on the surface of the lens mounting back plate 4. A drying chamber 11 is provided in the lower shell 2 of the lamp cover. A porous guide rod 10 that penetrates into the interior of the drying chamber 11 is provided at the front end of the water collection tank 9.

[0023] The drying chamber 11 contains a desiccant filled with materials such as silica gel and molecular sieves that can absorb moisture. The portion of the porous guide rod 10 that penetrates into the drying chamber 11 is covered by the desiccant. The capillary action generated by the porous material actively absorbs and guides the condensate collected in the water collection tank 9 into the drying chamber 11, where it is then firmly adsorbed by the desiccant, achieving continuous drying of the lamp's inner cavity. Condensation micro-grooves 8 are located on both sides of the secondary heat-conducting strip 7. The water collection tank 9 connects all the condensation micro-grooves 8 on the same surface of the lens mounting backplate 4. Water droplets condensed in the micro-grooves 8 will converge and flow into the water collection tank under the action of gravity and surface tension. In section 9; the walls of the condensation micro-groove 8 are hydrophobically treated, making it difficult for water to adhere to the walls and easier for it to drip off under gravity. The water collection tank 9 and the porous guide rod 10 are hydrophilically treated, which helps the water flow smoothly along their surfaces, greatly optimizing the efficiency of the entire process from collection to flow. The surface of the secondary heat conduction strip 7 is provided with micro-protrusions to increase the heat conduction area. The micro-protrusions significantly increase the contact area between the secondary heat conduction strip 7 and the air, which enhances the heat exchange effect on the one hand, and provides more condensation nuclei for water vapor condensation on the other hand, thereby guiding water vapor to be more preferentially and concentrated in the predetermined area.

[0024] Workflow: When the lamp is in operation, the heat generated by the lamp is concentrated and dissipated through the heat dissipation fins 3. The heat is then rapidly conducted to the entire lens mounting backplate 4 through the grid-like heat conduction network formed by the heat-conducting main body 6 and the secondary heat-conducting strips 7, raising its surface temperature and fundamentally preventing condensation. For the very small amount of condensed moisture that cannot be completely suppressed, it is collected in the condensation micro-groove 8 treated by the device, converges into the hydrophilic water collection tank 9, and finally flows along the path guided by the porous guide rod 10, allowing the desiccant in the drying chamber 11 to adsorb and quickly remove it, thereby keeping the inside of the lamp dry for a long time and ensuring lighting safety and lifespan.

[0025] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A street light fixture with anti-condensation function, comprising a street light upper shell (1) and a lampshade lower shell (2), characterized in that: Between the upper housing (1) and the lower housing (2) of the street lamp, there are heat dissipation fins (3) and a lens mounting back plate (4). A lamp bead lens (5) is provided on the lens mounting back plate (4). A heat-conducting body (6) is fixedly connected to the surface of the lens mounting back plate (4). The heat-conducting body (6) extends longitudinally along the lens mounting back plate (4) and extends outward. The heat-conducting body (6) is thermally bonded to the heat dissipation fins (3). A secondary heat-conducting strip (7) is also embedded in the lens mounting back plate (4) at intervals from the lamp bead lens (5). The secondary heat-conducting strip (7) is perpendicular to the heat-conducting body (6) and thermally connected. A condensation microgroove (8) and a water collection trough (9) are opened on the surface of the lens mounting back plate (4). A drying chamber (11) is provided in the lower housing (2). A multi-hole guide rod (10) penetrating into the drying chamber (11) is provided at the front end of the water collection trough (9).

2. A street light fixture with anti-condensation function according to claim 1, characterized in that: The drying chamber (11) contains a desiccant that absorbs moisture, and the portion of the porous guide rod (10) that penetrates into the drying chamber (11) is covered by the desiccant.

3. A street light fixture with anti-condensation function according to claim 1, characterized in that: The inner end face of the lower cover (2) of the lampshade is fixedly connected to a back plate mounting bracket (401), which is fixedly connected to both ends of the lens mounting back plate (4) in the length direction.

4. A street light fixture with anti-condensation function according to claim 1, characterized in that: The condensation microchannels (8) are located on both sides of the secondary heat-conducting strip (7), and the water collection tank (9) connects all the condensation microchannels (8) on the same surface of the lens mounting back plate (4).

5. A street light fixture with anti-condensation function according to claim 1, characterized in that: The walls of the coagulation micro-channel (8) are hydrophobic, and the water collection channel (9) and the porous guide rod (10) are hydrophilic.

6. A street light fixture with anti-condensation function according to claim 1, characterized in that: The heat-conducting main body (6) and the secondary heat-conducting strip (7) are made of materials with high thermal conductivity.

7. A street light fixture with anti-condensation function according to claim 1, characterized in that: The surface of the secondary heat-conducting strip (7) is provided with micro-protrusions to increase the heat-conducting area.

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