Indoor LED lamp lighting assembly

Abstract

The utility model discloses an indoor light-emitting diode (LED) lamp lighting assembly, which belongs to the field of lighting and comprises an LED down lamp, and the LED down lamp comprises an LED lamp panel, a cylindrical lamp housing fixed on an indoor ceiling through screws, a circuit board for controlling the brightness of the LED lamp panel and short circuit protection, and a lampshade fixed below the lamp housing through a buckle structure. Compared with the prior art, the lamp shell has the advantages that the humidity-dependent sensor connected with the circuit board is installed in the shell body of the lamp shell so as to monitor the humidity change in the lamp shell, once the humidity exceeds the standard, the electric heating wire can be started for heating so as to evaporate water vapor in the lamp shell to dryness, and in order to weaken external water vapor invasion, the lamp shell is provided with the humidity-dependent sensor for monitoring the humidity change in the lamp shell. A one-way waterproof breathable film is adhered to a heat dissipation groove of the lamp shell, so that ventilation of the interior of the lamp shell is guaranteed, and meanwhile external water drops are prevented from entering the interior of the lamp shell.

Description

Technical Field

[0001] This utility model relates to the field of lighting, specifically to an indoor LED lighting component. Background Technology

[0002] With the advent of electricity, in order to achieve efficient indoor lighting at night, people have gradually developed from the initial incandescent and fluorescent lamps to the most commonly used LED energy-saving lamps, which save electricity while ensuring lighting effects.

[0003] Existing indoor LED lighting fixtures mainly refer to LED downlights installed on indoor ceilings. They are mainly composed of an LED light panel, a lamp housing fixed to the indoor ceiling with screws, a circuit board for controlling the brightness of the LED light panel and short-circuit protection, and a lamp shade fixed to the bottom of the lamp housing by a snap-fit ​​structure. Because LED downlights are responsible for the lighting of the entire room, they are relatively large. In order to avoid overheating, heat dissipation grooves and other structures are usually opened on the side wall of the lamp housing for heat dissipation.

[0004] However, while this type of light can be used normally in the north, it is prone to short circuits in the humid weather of the south, especially during the humid season when the LED light board gets damp. This is particularly true during the humid season when the light is not turned on for a long time, which can easily lead to short circuits or even explosions of the LED light board. Utility Model Content

[0005] The technical problem this invention aims to solve is that existing indoor LED lighting components are large in size and have poor heat dissipation and moisture resistance, making them prone to short circuits due to moisture during humid weather.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0007] An indoor LED lighting assembly includes an LED light panel, a cylindrical lamp housing, a circuit board, and a lampshade fixed to the lower end of the lamp housing by a snap-fit ​​structure. The upper end of the lamp housing is provided with an mounting edge, and the side of the lamp housing is provided with a heat dissipation groove. The circuit board is characterized by having a humidity sensor for monitoring the humidity inside the lamp housing soldered to one side, and an electric heating wire for heating is used on the inner wall of the lamp housing. The lamp housing is provided with a support plate for placing the electric heating wire inside the housing, and a one-way waterproof and breathable membrane is wrapped around the outer wall of the heat dissipation groove of the lamp housing.

[0008] In one embodiment, a slider corresponding to the slot hole of the support plate is provided above the lampshade, and the buckle connecting the lampshade and the lamp housing is located at the outer wall end of the slider.

[0009] In one embodiment, both the circuit board and the humidity sensor are located above the LED light panel, and the LED light panel is connected to the top surface of the lamp housing via a pin structure.

[0010] In one embodiment, the heating wire is a nickel-chromium heating wire, and the heating wire is fixed above the support plate in a spiral structure. A temperature control system for controlling the heating power of the heating wire is provided above the circuit board.

[0011] In one embodiment, the upper and lower ends of the expanded polytetrafluoroethylene unidirectional waterproof and breathable membrane are connected to the outer wall of the lamp housing by 3M double-sided adhesive tape.

[0012] In one embodiment, the circuit board has an internal heating wire overload protection circuit, so that the heating wire is not energized when the LED board is powered on.

[0013] The advantages of this invention compared to the prior art are as follows: This device has a humidity sensor connected to a circuit board installed inside the lamp housing to monitor changes in humidity inside the lamp housing. Once the humidity exceeds the standard, the heating wire will be activated to heat the lamp housing and evaporate the moisture inside. In order to reduce the intrusion of external moisture, a one-way waterproof and breathable membrane of expanded polytetrafluoroethylene is attached to the heat dissipation groove of the lamp housing, which ensures that the inside of the lamp housing is breathable while preventing external water droplets from entering the inside of the lamp housing. Attached Figure Description

[0014] Figure 1 This is a general structural diagram of an indoor LED lighting component according to this utility model.

[0015] Figure 2 This is an exploded view of the overall structure of an indoor LED lighting component according to this utility model.

[0016] Figure 3 This is a structural diagram of the lampshade of an indoor LED lighting component according to this utility model.

[0017] Figure 4 This is a cross-sectional view of the overall structure of an indoor LED lighting component according to this utility model.

[0018] As shown in the figure: 1. LED downlight; 11. LED light board; 12. Lamp housing; 121. Support plate; 122. Slider; 13. Circuit board; 14. Lampshade; 15. Heat dissipation groove; 2. Humidity sensor; 3. Heating wire; 4. Expanded polytetrafluoroethylene one-way waterproof and breathable membrane. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] As per the instruction manual Figure 1 , 2As shown in Figures 3 and 4, the commonly used indoor lighting lamps at present are LED downlights 1 that are fixed to the ceiling by bolts. The LED downlight 1 includes an LED light panel 11, a cylindrical lamp housing 12, and a mounting edge that can be fixed to the indoor ceiling by screws at the upper end of the lamp housing 12. It also includes a circuit board 13 that controls the brightness of the LED light panel 11 and provides short-circuit protection, and a lampshade 14 that is fixed to the lower end of the lamp housing 12 by a snap-fit ​​structure. Because the indoor space is large and the LED downlight 1 is large in size, in order to ensure heat dissipation and avoid high temperature overload, heat dissipation grooves 15 are provided on the side of the lamp housing 12 to accelerate the heat dissipation effect.

[0021] To ensure that the LED downlight 1 does not become damp during the humid season in southern China, a humidity sensor 2 is soldered to one side of the circuit board 13 to monitor the humidity inside the lamp housing 12. To reduce the humidity inside the lamp housing 12, a heating wire 3 is used on the inner wall of the housing. Under normal use, the moisture inside the lamp housing 12 can be dried by the heat emitted by the LED light panel 11. However, if the lamp is not used for a long time during the humid season, the data monitored by the humidity sensor 2 will control the heating wire 3 to be activated intermittently to ensure the dryness inside the lamp housing 12. To ensure the plasticity of the heating wire 3, a nickel-chromium heating wire is used. Nickel-chromium heating wire is not easily deformed at high temperatures, has a stable structure, strong plasticity, and is easy to repair.

[0022] To ensure the evaporation effect of the heating wire 3, the lamp housing 12 has a multi-slot support plate 121 inside the housing for placing the heating wire 3, reducing the contact area and ensuring rapid heat evaporation. The lamp shade 14 has a slider 122 on the top corresponding to the slots of the support plate 121, and the buckle connecting the lamp shade 14 and the lamp housing 12 is located on the outer wall of the slider 122, which can ensure the sealing performance of the lamp shade 14. The lamp housing 12 is made of PET material, which can not only isolate the intrusion of external moisture, but also has good high temperature resistance, which can effectively prevent the heating wire 3 from burning the support plate 121.

[0023] To maximize heat dissipation, the heating wire 3 is fixed above the support plate 121 in a spiral structure. To facilitate control of the heat dissipated by the heating wire 3, a temperature control system for controlling the heating power of the heating wire 3 is provided above the circuit board 13. To ensure that the circuit board 13 is not overloaded when the LED light board 11 is lit, the circuit board 13 has an overload protection circuit for the heating wire 3, that is, the heating wire 3 is not powered when the LED light board 11 is powered on.

[0024] To ensure heat dissipation while preventing external moisture or water droplets from entering the lamp housing 12, the outer wall of the heat dissipation groove 15 of the lamp housing 12 is wrapped with an expanded polytetrafluoroethylene one-way waterproof and breathable membrane 4, and the upper and lower ends of the expanded polytetrafluoroethylene one-way waterproof and breathable membrane 4 are connected to the outer wall of the lamp housing 12 by 3M double-sided adhesive.

[0025] In specific implementation of this utility model, after the LED light panel 11 is stopped from use, the humidity sensor 2 monitors the humidity inside the lamp housing 12. When the humidity exceeds the standard, the heating wire 3 is activated. The heat emitted by the heating wire 3 evaporates the moisture, thus ensuring that the humidity inside the lamp housing 12 does not affect the normal operation of the circuit. This ensures that even if the LED downlight 1 is not used for a long time during the humid season, there will be no short circuit. When it needs to be restarted, it can be used normally simply by turning the switch back on. In order to ensure that the LED light panel 11 will not be overloaded due to the simultaneous use of the heating wire 3 when the LED light panel 11 is started, the overload protection circuit on the circuit board 13 will immediately shut off the heating wire 3. The heat emitted by the LED light panel 11 will continue to evaporate the moisture inside the lamp housing 12.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. Indoor LED lamp lighting assembly, comprising LED lamp panel (11), cylindrical lamp shell (12), circuit board (13) and lampshade (14) fixed at the lower end of the lamp shell (12) by buckle structure, the upper end of the lamp shell (12) is provided with mounting edge, and the side of the lamp shell (12) is provided with heat dissipation groove (15), characterized in that: One side of the circuit board (13) is welded with a humidity sensor (2) for monitoring the humidity inside the lamp shell (12), and an electric heating wire (3) for heating is used on the inner wall of the shell of the lamp shell (12), the shell inside the lamp shell (12) is provided with a support plate (121) for placing the electric heating wire (3), and the outer wall end of the heat dissipation groove (15) of the lamp shell (12) is wound with a one-way waterproof and breathable film (4).

2. An indoor LED luminaire lighting assembly according to claim 1, characterized in that: The upper portion of the lampshade (14) is provided with a sliding block (122) corresponding to the slot hole of the support plate (121), and the buckle connecting the lampshade (14) and the lamp shell (12) is located at the outer wall end of the sliding block (122).

3. An indoor LED luminaire lighting assembly according to claim 1, characterized in that: The circuit board (13) and the humidity sensor (2) are both located above the LED lamp plate (11), and the LED lamp plate (11) is connected with the top surface of the lamp shell (12) through a pin structure.

4. An indoor LED luminaire lighting assembly according to claim 1, characterized in that: The electric heating wire (3) is a nickel complex electric heating wire, and the electric heating wire (3) is fixed in a spiral structure above the support plate (121), and the upper portion of the circuit board (13) is provided with a temperature control system for controlling the heating power of the electric heating wire (3).

5. An indoor LED luminaire lighting assembly according to claim 1, wherein: The circuit board (13) has an electric heating wire (3) overload protection circuit inside, and the electric heating wire (3) is not electrified when the LED lamp plate (11) is electrified.

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