Outdoor luminaire with replaceable light source

By introducing a humidity sensor and heat-conducting plate structure into outdoor lighting fixtures, the waste heat of LEDs is used to generate hot air to suppress condensation, thus solving the problem of circuit moisture caused by condensation in outdoor lighting fixtures, extending the service life of the lighting fixtures and achieving energy-saving effects.

CN224551488UActive Publication Date: 2026-07-24ZHONGSHAN MEIYUN LIGHTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN MEIYUN LIGHTING CO LTD
Filing Date
2025-05-13
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Outdoor lighting fixtures are prone to condensation in environments with large temperature differences between day and night and high humidity, which can cause short circuits due to moisture, affecting lighting performance and shortening their lifespan.

Method used

An outdoor lamp with replaceable light source components was designed. It adopts a humidity sensor and heat conduction plate structure. By monitoring condensate in real time and starting the fan, it uses the waste heat of the LED to generate directional hot air to maintain the surface temperature of the transparent lampshade above the dew point, and simultaneously accelerates the evaporation of water vapor, thus blocking the risk of condensate leakage.

Benefits of technology

It effectively suppresses condensation, ensures circuit safety, extends lamp life, and achieves energy-saving advantages with zero additional energy consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to outdoor lamps technical field especially relates to a kind of outdoor lamps with replaceable light source parts.Its technical scheme includes LED lamp stick, base and top cover, and transparent lamp shade is fixedly connected between base and top cover, and LED lamp stick is detachably installed on top cover, and LED lamp stick extends into transparent lamp shade;Annular water storage groove is opened on transparent lamp shade, and water-absorbing cotton is equipped in water storage groove, and humidity sensor is fixedly installed in the bottom of water storage groove;Base is fixedly connected with the multiple heat-conducting plates that the surface of transparent lamp shade is attached, and heat-conducting cavity is opened in heat-conducting plate, and heat-conducting hole is opened in array in heat-conducting plate, and water storage groove and one column heat-conducting hole axial alignment;Cavity is opened in base, and fan is fixedly connected in cavity, and by humidity sensor and heat-conducting plate, high-efficiency inhibits dew, and synchronous acceleration water storage evaporation realizes humidity two-stage control, and blocks condensate leakage risk, guarantees circuit safety and delays component aging, and prolongs the service life of lamp.
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Description

Technical Field

[0001] This utility model relates to the field of outdoor lighting technology, and in particular to an outdoor lighting fixture with a replaceable light source. Background Technology

[0002] With the booming development of urban landscape lighting construction and outdoor leisure activities, outdoor lighting fixtures, as key equipment for ensuring nighttime environmental safety and creating ambiance, are widely used in road lighting, garden landscapes, commercial plazas, and other scenarios. However, in actual use, condensation on outdoor lighting fixtures has become a major problem plaguing the industry.

[0003] Due to the complex and variable outdoor environment and significant diurnal temperature variations, when the surface temperature of the lamp is lower than the dew point temperature of the ambient air, water vapor in the air will condense into water droplets on the surface. This phenomenon is particularly pronounced in outdoor environments. Furthermore, high humidity during the rainy season and the effects of extreme weather can exacerbate moisture accumulation on the lamps. Condensation on lamps can lead to moisture-induced short circuits in the lamp circuitry, affecting lighting performance and shortening the lamp's lifespan. Therefore, this application proposes an outdoor lamp with a replaceable light source component. Utility Model Content

[0004] The purpose of this invention is to address the problem in the prior art that condensation on lamps can lead to moisture-induced short circuits in the lamp circuits, affecting the lighting effect and shortening the lamp's lifespan. This invention proposes an outdoor lamp with a replaceable light source component.

[0005] The technical solution of this utility model is as follows: An outdoor lamp with replaceable light source components includes an LED light bar, a base, and a top cover. A transparent lampshade is fixedly connected between the base and the top cover. The LED light bar is detachably installed on the top cover and extends into the transparent lampshade. An annular water storage tank is formed on the transparent lampshade, and absorbent cotton is placed inside the water storage tank. A humidity sensor is fixedly installed at the bottom of the water storage tank. Multiple heat-conducting plates that are in contact with the surface of the transparent lampshade are fixedly connected to the base. Heat-conducting cavities are formed on the heat-conducting plates, and heat-conducting holes are arranged in an array on the heat-conducting plates. The water storage tank is axially aligned with one row of heat-conducting holes. A cavity is formed inside the base, and a fan is fixedly connected inside the cavity. A controller is fixedly installed on the base. The humidity sensor is connected to the input terminal of the controller, and the output terminal of the controller is connected to the fan.

[0006] Optionally, the heat-conducting cavity is connected to the cavity, and the top of the heat-conducting plate is fixedly connected to the top cover.

[0007] Optionally, a base is fixedly connected to the base, and a slot is provided on the base. The LED light bar is plugged into the slot and slidably connected to the top cover.

[0008] Optionally, the slot is provided with conductive contacts, and the electrodes of the LED lamp rod make contact with the conductive contacts to achieve electrical connection.

[0009] Optionally, the top cover has an air inlet hole, and the air inlet hole is equipped with a removable filter screen.

[0010] Optionally, a threaded tube is fixedly connected to the top cover, and a cap is threadedly connected to the threaded tube, with the LED light stick located inside the threaded tube.

[0011] Optionally, the top cover has a threaded groove, and the filter screen is threadedly connected to the threaded groove by bolts.

[0012] Compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] This invention utilizes a structure design incorporating a humidity sensor and a heat-conducting plate to monitor the condensate adsorption status in real time and automatically turn the fan on and off. It uses the waste heat from the LED to generate directional hot air to precisely maintain the surface temperature of the transparent lampshade above the dew point, effectively suppressing condensation. Simultaneously, it accelerates water storage evaporation to achieve dual-level humidity control, blocking the risk of condensate leakage, ensuring circuit safety, and delaying component aging, thus significantly extending the lamp's lifespan and offering the energy-saving advantage of zero additional energy consumption.

[0014] This utility model discloses an outdoor lamp with a replaceable light source component. Through a humidity sensor and a heat-conducting plate, it effectively suppresses condensation and simultaneously accelerates water storage evaporation to achieve dual-level humidity control, block the risk of condensate leakage, ensure circuit safety, delay component aging, and extend the lamp's service life. Attached Figure Description

[0015] Figure 1 An exploded three-dimensional structural diagram of an outdoor lighting fixture with replaceable light source components;

[0016] Figure 2 This is a structural schematic diagram of an outdoor lighting fixture with a replaceable light source component;

[0017] Figure 3 This is a schematic diagram of the internal structure of an outdoor lighting fixture with a replaceable light source.

[0018] Figure 4 This is a structural diagram of the base and top cover;

[0019] Figure 5 This is a schematic diagram of the heat-conducting plate and the base.

[0020] Reference numerals: 1. LED light bar; 2. Base; 201. Cavity; 3. Base; 301. Slot; 4. Fan; 5. Heat-conducting plate; 501. Heat-conducting cavity; 502. Heat-conducting hole; 6. Top cover; 601. Air inlet; 7. Threaded tube; 8. Cap; 9. Transparent lampshade; 901. Water tank; 10. Humidity sensor. Detailed Implementation

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figure 1 , Figure 2 , Figure 4As shown, an outdoor lighting fixture with replaceable light source includes an LED light bar 1, a base 2, and a top cover 6. A transparent lampshade 9 is fixedly connected between the base 2 and the top cover 6. The LED light bar 1 is detachably mounted on the top cover 6, extending into the transparent lampshade 9. A cavity 201 is formed inside the base 2, and a fan 4 is fixedly connected inside the cavity 201. A base 3 is fixedly mounted on the base 2, and a slot 301 is provided on the base 3. Conductive contacts are arranged in the slot 301. When the LED light bar 1 is inserted into the slot 301... At this time, its bottom electrode and conductive contact form a tight elastic contact, establishing a reliable electrical connection path; the LED lamp rod 1 adopts a pluggable structure to cooperate with the slot 301, and its upper part forms a sliding connection structure with the top cover 6. When maintenance is required, the LED lamp rod 1 can be quickly disassembled by axially pulling it out. A controller is fixedly installed on the base 2; the output end of the controller is connected to the fan 4. The transparent lamp cover 9 has an annular water storage tank 901, which is filled with highly absorbent fiber cotton to collect the condensate on the transparent lamp cover 9. A high-precision humidity sensor 10 is installed at the bottom of the water storage tank 901 to monitor the changes in ambient humidity in real time. The humidity sensor 10 and the controller in the base 2 form a closed-loop control system. When the risk of condensation is detected, the fan 4 is started to blow the heat flow inside the transparent lamp cover 9 to the surface of the transparent lamp cover 9 to heat it up and suppress the condensation phenomenon.

[0024] like Figure 1 , Figure 2 , Figure 5 As shown, multiple heat-conducting plates 5 are fixedly connected to the base 2 and are attached to the surface of the transparent lampshade 9. The heat-conducting plates 5 have heat-conducting cavities 501 and heat-conducting holes 502 arranged in an array. The water storage tank 901 is axially aligned with one row of heat-conducting holes 502. The heat-conducting plate 5 has a heat-conducting cavity 501 inside that communicates with the base cavity 201. Its top is rigidly connected to the top cover 6 to form a complete heat conduction path. During operation, the fan 4 forces the airflow heated by the LED lamp rod 1 from the cavity 201 into the heat-conducting cavity 501, raising the overall temperature of the heat-conducting plate 5 through convection heat transfer. At the same time, the hot airflow is blown directionally to the inner surface of the transparent lampshade 9 through the evenly distributed heat-conducting holes 502, forming a uniformly heated thermal barrier that effectively inhibits water vapor condensation.

[0025] Figure 1 , Figure 3 , Figure 4As shown, a threaded tube 7 is fixedly connected to the top cover 6, and the threaded tube 7 is connected to the cap 8 by a threaded engagement. The LED light bar 1 is inserted into the threaded tube 7 and fixed by the cap 8. The top of the cap 8 has a hook for easy hanging of the lamp on a bracket or wall. When the LED light bar 1 needs to be replaced, the cap 8 can be unscrewed to pull the light bar out of the threaded tube 7, which is easy to operate. An air inlet 601 is provided on the top cover 6, and a removable filter is provided on the air inlet 601. When the fan 4 is started, the external airflow enters the closed cavity of the lamp through the air inlet 601 on the top cover 6. During this process, the airflow absorbs the heat generated by the LED light bar 1 to complete the preheating. Then, the fan 4 guides the heated airflow into the base cavity 201, and then introduces the heated airflow into the heat conduction cavity 501 of the heat conduction plate 5. The hot airflow heats the heat conduction plate 5 in the heat conduction cavity 501, raising its temperature. Finally, the heated airflow is discharged from the heat conduction holes 502 on the surface of the heat conduction plate 5, directly blowing on the surface of the transparent lampshade 9, raising the surface temperature of the lampshade, thereby inhibiting water vapor condensation and preventing condensation.

[0026] Furthermore, such as Figure 1 As shown, the top cover 6 has a threaded groove, and the filter screen is connected to the threaded groove by bolts. The filter screen can effectively block foreign objects such as dust, leaves, and insects from entering the lamp, preventing these foreign objects from affecting the normal operation of the LED light bar 1 and the fan 4, and at the same time preventing foreign objects from contacting the internal circuit and causing short circuit faults. The filter screen can be cleaned or replaced by removing the bolts, ensuring the long-term stable operation of the lamp and improving the reliability of the lamp in harsh outdoor environments.

[0027] In this embodiment, the cap 8 is rotated to remove it, and then the LED light rod 1 is inserted into the slot 301. The cap 8 is rotated to connect with the threaded tube 7 to fix the LED light rod 1. When the lamp is in use, if the outside air humidity is high, condensation will form on the transparent lamp cover 9 after it touches the transparent lamp cover 9. The condensate will flow into the water storage tank along the outer wall of the transparent lamp cover 9. The washing cotton absorbs the water. After the humidity sensor 10 detects that the humidity exceeds the threshold, it sends information to the controller. The controller starts the fan 4, and the external airflow enters the lamp's enclosed cavity through the air inlet 601 on the top cover 6. The airflow absorbs the working output of the LED light rod 1. The generated heat completes the preheating. Then, the fan 4 introduces the heated airflow into the base cavity 201, and then introduces the heated airflow into the heat conduction cavity 501 of the heat conduction plate 5. The hot airflow heats the heat conduction plate 5 in the heat conduction cavity 501, raising its temperature. At the same time, the heated airflow is discharged from the heat conduction holes 502 on the surface of the heat conduction plate 5, directly blowing on the surface of the transparent lampshade 9, raising the surface temperature of the lampshade. Through the humidity sensor and the heat conduction plate, condensation is effectively suppressed, and water storage evaporation is accelerated to achieve dual-level humidity control, blocking the risk of condensate leakage, ensuring circuit safety, delaying component aging, and extending the service life of the lamp.

[0028] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An outdoor lighting fixture with replaceable light source, comprising an LED light bar (1), a base (2), and a top cover (6), wherein a transparent lampshade (9) is fixedly connected between the base (2) and the top cover (6), and the LED light bar (1) is detachably mounted on the top cover (6), wherein the LED light bar (1) extends into the transparent lampshade (9), characterized in that: The transparent lampshade (9) has an annular water storage tank (901) with absorbent cotton inside. A humidity sensor (10) is fixedly installed at the bottom of the water storage tank (901). Multiple heat-conducting plates (5) that are in contact with the surface of the transparent lampshade (9) are fixedly connected to the base (2). The heat-conducting plates (5) have heat-conducting cavities (501) and heat-conducting holes (502) arranged in an array on the heat-conducting plates (5). The water storage tank (901) is axially aligned with one row of heat-conducting holes (502). The base (2) has a cavity (201) inside, and a fan (4) is fixedly connected inside the cavity (201). A controller is fixedly installed on the base (2). The humidity sensor (10) is connected to the input end of the controller, and the output end of the controller is connected to the fan (4).

2. An outdoor lighting fixture with a replaceable light source element according to claim 1, characterized in that, The heat-conducting cavity (501) is connected to the cavity (201), and the top of the heat-conducting plate (5) is fixedly connected to the top cover (6).

3. An outdoor lighting fixture with a replaceable light source element according to claim 1, characterized in that, A base (3) is fixedly connected to the base (2), and a slot (301) is provided on the base (3). The LED light rod (1) is plugged into the slot (301), and the LED light rod (1) is slidably connected to the top cover (6).

4. An outdoor lighting fixture with a replaceable light source element according to claim 3, characterized in that, The slot (301) is provided with conductive contacts, and the electrodes of the LED lamp rod (1) are in contact with the conductive contacts.

5. An outdoor lighting fixture with a replaceable light source element according to claim 1, characterized in that, The top cover (6) has an air inlet (601) and a detachable filter screen is provided on the air inlet (601).

6. An outdoor lighting fixture with a replaceable light source element according to claim 1, characterized in that, A threaded tube (7) is fixedly connected to the top cover (6), and a cap (8) is threadedly connected to the threaded tube (7). The LED light bar (1) is located inside the threaded tube (7).

7. An outdoor lighting fixture with a replaceable light source element according to claim 5, characterized in that, The top cover (6) has a threaded groove, and the filter screen is threadedly connected to the threaded groove by bolts.