CN203823584U - LED street lamp with color temperature switching function - Google Patents

Abstract

The utility model discloses an LED street lamp with a color temperature switching function, which comprises a light source and a color temperature switching component, and the color temperature switching component comprises: a humidity sensitive sensor for detecting the surrounding air humidity; a driving device connected with the humidity sensitive sensor; and a color temperature adjusting sheet , connected to the driving device to adjust the color temperature of the light emitted by the light source; wherein, according to the air humidity detected by the humidity sensor, the color temperature adjustment sheet includes two positions: when the air humidity detected by the humidity sensor is greater than a preset In the state of setting the value, the color temperature adjustment piece is driven to a first position by the driving device. In the first position, the color temperature adjustment piece is completely blocked in front of the light source, and the light emitted by the light source is adjusted to a warm yellow with a color temperature of 2000K-2700K Light: when the air humidity detected by the humidity sensor does not exceed the preset value, the color temperature adjustment sheet is driven to a second position by the driving device, and the color temperature adjustment sheet does not block the light emitted by the light source.

Description

LED Street Light with Color Temperature Switching Function

technical field

The utility model relates to the technical field of lighting devices, in particular to an LED street lamp with a color temperature switching function.

Background technique

Now LED street lamps are used more and more widely. Under the current situation of energy saving, emission reduction and environmental protection, the use of LED street lamps is a trend. The structure of an existing LED street lamp is shown in FIG. 1 , which mainly includes a lamp housing 2 , a power drive board 4 , an LED circuit board 12 , an LED lamp 11 and a transparent lampshade 9 .

However, LED street lights have a natural bottleneck that needs to be resolved:

The existing LED street lamps all emit cool white light with a color temperature in the range of 5500-6000K. Compared with traditional high-pressure sodium lamp street lamps, their luminous efficiency has been greatly improved. In good weather conditions, LED street lights can completely replace traditional high-pressure sodium street lights. However, in some special weather conditions, such as foggy and rainy weather, the lighting effect of this cool white light will be greatly reduced. Due to the poor fog penetration of cold white light, it will directly affect the driving safety in foggy and rainy weather.

Utility model content

The utility model provides an LED street lamp with a color temperature switching function aiming at the above-mentioned deficiencies in the prior art. The utility model is realized through the following technical solutions:

An LED street lamp with a color temperature switching function, including a light source and a color temperature switching component for switching the color temperature, the color temperature switching component includes:

Humidity sensor to detect the surrounding air humidity;

The driving device is connected to the humidity sensor;

The color temperature adjustment sheet is connected to the driving device to adjust the color temperature of the light emitted by the light source;

Wherein, when the air humidity detected by the humidity sensor is greater than a preset value, the color temperature adjusting sheet is driven to a first position by the driving device, and in the first position, the color temperature adjusting sheet is completely blocked in front of the light source, and the The light emitted by the light source is adjusted to a warm yellow light with a color temperature of 2000K-2700K;

When the air humidity detected by the humidity sensor does not exceed the preset value, the color temperature adjusting sheet is driven to a second position by the driving device, and the color temperature adjusting sheet does not block the light emitted by the light source.

Preferably, the driving device includes: a motor, a motor support and a reduction gear, and the motor is arranged on the motor support;

The color temperature adjustment sheet includes: a main body of the color temperature adjustment sheet and a rack, and the rack is arranged on one side of the main body of the color temperature adjustment sheet;

The reduction gear is meshed between the motor and the rack for transmission and deceleration.

Preferably, the LED street lamp includes a first space and a second space, the light source is arranged in the first space or the second space, the first position is located in the space where the light source is located, and the second position is located in another space.

Preferably, the light source includes: a power drive board, an LED circuit board and an LED lamp, and the LED circuit board is connected to the power drive board and the LED lamp.

Preferably, the LED lamp is an LED lamp cup.

Description of drawings

What Fig. 1 shows is the structure explosion diagram of existing LED street lamp;

What shown in Fig. 2 is the structural explosion diagram of the present utility model;

What Fig. 3 shows is the partial sectional view of the utility model;

What Fig. 4 shows is another partial sectional view of the utility model;

What Fig. 5 shows is the schematic diagram of the color temperature adjusting sheet of the present invention located in the first position;

FIG. 6 is a schematic diagram of the color temperature adjusting sheet of the present invention in the second position.

Detailed ways

The following will be combined with the accompanying drawings of the utility model to clearly and completely describe and discuss the technical solutions in the embodiments of the utility model. Obviously, what is described here is only a part of the utility model, not all examples, based on The embodiments of the present utility model and all other embodiments obtained by persons of ordinary skill in the art without making creative efforts all belong to the protection scope of the present utility model.

In order to facilitate the understanding of the embodiments of the present utility model, the following will further explain and illustrate by taking specific embodiments as examples in conjunction with the accompanying drawings, and each embodiment does not constitute a limitation to the embodiments of the present utility model.

As shown in FIG. 2 , an LED street lamp with a color temperature switching function provided by the utility model mainly includes a light source and a color temperature switching component.

The light source is similar to the existing LED lamp, including a power drive board 4 , an LED circuit board 12 and an LED lamp 11 . The LED circuit board 12 is connected to the power drive board 4 and the LED lamp 11, and the LED lamp 11 can obtain electric energy. What LED lamp 11 adopted here is LED lamp cup. LED light cup is a new type of lighting fixture combined with LED, constant current driver, optical lens and metal or other heat sink shell with high thermal conductivity. It adopts the principle of flashlight focusing and parabolic surface design, which can reduce light loss more effectively. .

As shown in FIGS. 2 to 4 , the color temperature switching assembly mainly includes: a humidity sensor 5 , a driving device, and a color temperature adjustment sheet 10 . Both the humidity sensor 5 and the driving device are arranged on the circuit board 3 . According to the air humidity detected by the humidity sensor 5, the color temperature adjustment sheet 10 is driven by the driving device. In foggy weather (the air humidity detected by the humidity sensor 5 is greater than a preset value), the color temperature adjustment sheet 10 Drive to the front of the light source, thereby blocking the light source, so that the light emitted by the light source passes through the color temperature adjustment sheet 10, and is converted into warm yellow light with a color temperature of 2000K-2700K, which can effectively improve the fog penetration and ensure driving safety; When the preset value is exceeded, the color temperature adjusting sheet 10 does not block the light source, and the light emitted by the light source is still the original cool white light.

In this embodiment, the driving device includes a motor 6, a motor support 7 and a reduction gear 8, the motor 6 is arranged on the motor support 7, the color temperature adjustment sheet 10 includes a color temperature adjustment sheet main body 101 and a color temperature adjustment sheet body 101- The rack 102 on the side, the reduction gear 8 is engaged between the rack 102 and the motor 6, and the motor 6 drives the rack 102 through the reduction gear 8, so that the color temperature adjustment sheet 10 can be moved, and the speed of the color temperature adjustment sheet 10 can be prevented. damaged too quickly.

The entire LED street lamp also includes a lamp housing 2 and a transparent lampshade 9. In this embodiment, its interior is divided into two spaces, and the light source is arranged in one of the spaces, and the color temperature adjusting sheet 10 can move back and forth between the two spaces. Move, so as to achieve the purpose of blocking the light source and not blocking the light source. As shown in Figure 5, when the air humidity detected by the humidity sensor 5 is greater than the preset value, the color temperature adjustment sheet 10 is driven into the space where the light source is located, completely blocking the light source, and the light emitted by the light source After the color temperature is adjusted by the color temperature adjustment sheet 10, it can effectively improve the fog permeability in foggy and rainy weather; as shown in Figure 6, when the air humidity does not exceed a predetermined value, the color temperature adjustment sheet 10 is driven to another space Inside, the light emitted by the light source is not blocked, so that the luminous efficiency of the LED lamp under normal weather conditions can be effectively exerted.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any person familiar with the technical field can easily think of All changes or replacements should fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (5)

1. A kind of LED street lamp with color temperature switching function, it is characterized in that, comprises light source and a color temperature switching assembly, in order to switch color temperature, and described color temperature switching assembly comprises: Humidity sensor to detect the surrounding air humidity; a driving device connected to the humidity sensor; A color temperature adjustment sheet, connected to the driving device, for adjusting the color temperature of the light emitted by the light source; Wherein, when the air humidity detected by the humidity sensor is greater than a preset value, the color temperature adjustment sheet is driven to a first position by the driving device, and in the first position, the The color temperature adjustment sheet completely blocks the front of the light source, and adjusts the light emitted by the light source to a warm yellow light with a color temperature of 2000K-2700K; When the air humidity detected by the humidity sensor does not exceed the preset value, the color temperature adjustment sheet is driven to a second position by the driving device, and the color temperature adjustment sheet does not block the light source emitted light. 2. The LED street lamp with color temperature switching function according to claim 1, characterized in that: The driving device includes: a motor, a motor support and a reduction gear, the motor is arranged on the motor support; The color temperature adjustment sheet includes: a color temperature adjustment sheet main body and a rack, and the rack is arranged on one side of the color temperature adjustment sheet main body; The reduction gear is meshed between the motor and the rack for transmission and reduction. 3. The LED street lamp with color temperature switching function according to claim 1, characterized in that, the LED street lamp comprises a first space and a second space, and the light source is arranged in the first space or the second space In two spaces, the first position is located in the space where the light source is located, and the second position is located in another space. 4. The LED street lamp with color temperature switching function according to claim 1, wherein the light source comprises: a power drive board, an LED circuit board and an LED lamp, and the LED circuit board is connected to the power drive board and the LED lights described above. 5. The LED street lamp with a color temperature switching function according to claim 1, wherein the LED lamp is an LED lamp cup.