CN204164869U - A new type of LED ceiling lamp - Google Patents

Abstract

The utility model relates to a novel LED ceiling lamp, comprising a lamp housing, an aluminum substrate, a lamp shade and a driving power supply box, wherein a driving power supply is arranged in the driving power supply box, the lamp shade is fixed to the lamp housing, and the aluminum substrate is located between the lamp shade and the lamp housing; the aluminum substrate is fixed on the front side of the lamp housing, a plurality of LED light sources are arranged on the aluminum substrate, and the LED light sources are electrically connected to the driving power supply, a groove extending toward the front side of the lamp housing is arranged in the middle of the back side of the lamp housing, so that a convex portion is formed correspondingly in the middle of the front side of the lamp housing, the driving power supply box is installed in the groove, and the height of the driving power supply box is equal to or less than the height of the groove; the back side of the lamp housing of the utility model is flat, and the installation is convenient; the LED light source emits light evenly, and the boundary between light and dark is avoided.

Description

A new type of LED ceiling lamp

technical field

The utility model relates to an LED ceiling lamp.

Background technique

LED ceiling lamps are often used in modern family living rooms, dining rooms, corridors, offices or other occasions. LED ceiling lamp is a kind of lamp. Because the top of the lamp is relatively flat, the bottom of the lamp is completely attached to the ceiling during installation, so it is called a ceiling lamp.

Existing LED ceiling lamps generally include a lampshade, an LED substrate, a chassis, and a driving power supply. The LED substrate is fixed on the chassis, the chassis and the lampshade are fixed, there are several LED lights on the LED substrate, and the driving power supplies power to the LED lights. There is a groove extending towards the lampshade in the middle of the chassis, and the driving power is placed in the groove. However, since there is a groove in the middle of the chassis, a raised portion is formed on the side close to the lampshade, so that the LED lights installed in the area of the raised portion are closer to the lampshade, and the power of each LED lamp is the same. , the area of the convex part is brighter, and the area of the non-convex part is darker, and there will be a more obvious light-dark boundary.

In order to solve this problem, existing products usually use the principle of shadowless lamps, adopt low-power LED lights, and discharge them intensively, thereby reducing the influence of the boundary between light and dark, and making the luminous effect more uniform. But because too many LED lights are used, the cost is also high. In addition, in order to reduce the light-dark boundary and the influence of uneven luminescence, the height of the groove in the middle of the chassis is not set enough, so that part of the drive power box protrudes outside and is not on the same level as the back of the chassis, which makes it inconvenient to install lamps. Overall thick.

Utility model content

The purpose of the utility model is to provide a novel LED lamp, which can realize a flat back of the lamp housing, is easy to install, and has a uniform luminous effect.

The technical scheme that the utility model adopts is as follows:

A new type of LED ceiling lamp, including a lamp housing, an aluminum substrate, a lampshade, and a driving power supply box. The driving power supply box is provided with a driving power supply. The lampshade and the lamp housing are fixed, and the aluminum substrate is located between the lamp shade and the lamp housing; the aluminum substrate is fixed on the On the front of the lamp housing, several LED light sources are arranged on the aluminum substrate, the LED light sources are electrically connected to the driving power supply, and a groove extending toward the front of the lamp housing is provided in the middle of the back of the lamp housing, so that A protrusion is correspondingly formed in the middle of the front side, the drive power box is installed in the groove, and the height of the drive power box is equal to or less than the height of the groove

Further, the front of the lamp housing is composed of the top surface of the raised portion and the annular surface around the raised portion, the aluminum substrate includes a first aluminum substrate and a second aluminum substrate, the first aluminum substrate is fixed on the top surface of the raised portion, The second aluminum substrate is fixed on the annular surface; the LED light source includes a first LED light source and a second LED light source, the first LED light source is arranged on the first aluminum substrate, the second LED light source is arranged on the second aluminum substrate, and the first LED light source It is connected to the driving power through a current limiting resistor; the second LED light source is directly connected to the driving power.

Further, the groove is in the shape of a truncated cone.

Further, one side outer wall of the driving power box and one side inner wall of the groove form a cavity.

Further, the lampshade is screwed to the lamp housing.

Further, two annular protrusions are provided on the back of the lamp housing.

Further, an annular groove is provided on the back of the lamp housing.

Because the height of the driving power box is less than or equal to the height of the groove on the back of the lamp housing, the driving power box will not be higher than the horizontal plane of the back of the lamp housing, so the back of the lamp housing is flat and easy to place; the first LED on the top surface of the raised part The light source is connected to the driving power supply after the current limiting resistor is connected in series, and the second LED light source on the annular surface is connected to the driving power supply, so that the power used by the first LED light source is lower than that of the second LED light source, so that The LED light source emits light evenly, reducing the influence of the boundary between light and dark.

Description of drawings

Fig. 1 is a schematic diagram of the split structure of the novel LED ceiling lamp of the present invention;

Fig. 2 is a sectional view of the lamp housing of the present invention;

Fig. 3 is a schematic circuit diagram of the utility model.

Among them, 1. lamp housing; 2. first aluminum substrate; 3. second aluminum substrate; 4. lampshade; 5. drive power box; 6. groove; 7. first LED light source; 8. second LED light source; 9. Driving power supply; 10. Raised part; R, current limiting resistor.

Detailed ways

Below, in conjunction with accompanying drawing and specific embodiment, the utility model is described further:

As shown in Figure 1, Figure 2 and Figure 3, a new type of LED ceiling lamp includes a lamp housing 1, an aluminum substrate, a lamp cover 4, and a driving power box 5, and the driving power box 5 has a built-in driving power 9, wherein the lamp housing 4 and the lamp housing 1 is fixed, and the fixing method is screwing, or it can be fixed by snapping; the aluminum substrate is fixed on the front of the lamp housing 1, and the aluminum substrate is located between the lamp shade 4 and the lamp housing 1, and the side of the lamp housing 1 close to the lamp shade 4 is the front The side of the lamp housing 1 away from the lampshade 4 is the back side, and a groove 6 extending toward the front of the lamp housing 1 is provided on the back of the lamp housing 1, so that a protrusion 10 is correspondingly formed on the front of the lamp housing 1, and the groove Preferably located in the middle of the back of the lamp housing 1, the groove 6 may be in the shape of a truncated cone; the front of the lamp housing 1 is composed of the top surface of the raised portion 10 and the annular surface other than the raised portion 10, and the aluminum substrate includes the first aluminum The base plate 2 and the second aluminum base plate 3, the first aluminum base plate 2 is fixed on the top surface of the raised part, the fixing method can be fixed by screws, the second aluminum base plate 3 is fixed on the position of the annular surface, the fixing method can be fixed by screws, the second A first LED light source 7 is fixed on an aluminum substrate 2, a second LED light source 8 is fixed on a second aluminum substrate 3, the first LED light source 7 and the second LED light source 8 are both facing the lampshade 4, and the drive power box 5 is placed on the In the groove 6, the height of the groove 6 is less than or equal to the height of the drive power supply box 5, so that the drive power supply box 5 will not be higher than the horizontal plane of the back of the lamp housing 1, which is convenient for installation; preferably, one side of the drive power supply box 5 The outer wall and the inner wall of one side of the groove form a cavity, which is convenient for hand to reach in during maintenance or installation, and is convenient for disassembly and fixing; the driving power supply 9 in the driving power supply box 5 is connected with the first LED light source 7 and the second LED light source 8 Connect with wires to supply power to the first LED light source 7 and the second LED light source 8; a through hole communicating with the groove 6 is provided on the top surface of the raised portion 10 to facilitate communication with the drive power supply box 5, the first LED light source 7, The wires of the second LED light source 8 pass through.

Since the lamp housing 1 is provided with a groove 6, the first LED light source 7 is closer to the lampshade 4 than the second LED light source 8. Since the rated power of the first LED light source 7 and the second LED light source 8 are the same, if no measures are taken, it will A light-dark boundary appears, and the luminescence is uneven. As shown in Figure 3, in order to prevent this phenomenon, the first LED light source 7 is connected in series with the current limiting resistor R and then connected to the driving power supply 9, while the second LED light source 8 is directly connected to the driving power supply 9. This principle is Limit the current of the first LED light source 7 through the current limiting resistor R, thereby making the actual power of the first LED light source 7 lower than the actual power of the second LED light source 8, and the luminance of the first LED light source 7 will be lower than that of the second LED light source 7. The luminous brightness of the LED light source 8 reduces or even avoids the boundary between light and dark, so that the LED ceiling lamp emits light evenly, and this method is low in cost.

There are two annular protrusions on the back of the lamp housing 1, and correspondingly two annular grooves are formed on the front of the lamp housing 1. Elastic washers can be placed in the two annular grooves to facilitate the installation of the lamp. There is also an annular groove on the back of the lamp housing 1, which corresponds to an annular protrusion formed on the front of the lamp housing. This annular protrusion is used to pad the second aluminum substrate 3, which is more convenient to fix the second aluminum substrate 3.

For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all these changes and deformations should fall within the protection scope of the claims of the present utility model.

Claims (7)

1. A new type of LED ceiling lamp, comprising a lamp housing, an aluminum substrate, a lampshade and a drive power supply box, the drive power supply box is provided with a drive power supply, the lampshade is fixed to the lamp housing, and the aluminum substrate is fixed on the front of the lamp housing , and the aluminum substrate is located between the lampshade and the lamp housing; several LED light sources are provided on the aluminum substrate, and the LED light sources are electrically connected to the driving power supply. The groove extending in the front direction of the housing is such that a protrusion is correspondingly formed in the middle of the front of the lamp housing, and the driving power supply box is installed in the groove, and the height of the driving power supply box is equal to or smaller than the height of the groove. 2. The new LED ceiling lamp according to claim 1, characterized in that, the front of the lamp housing is composed of the top surface of the raised part and the ring-shaped surface around the raised part, and the aluminum substrate includes a first aluminum substrate and the second aluminum substrate, the first aluminum substrate is fixed on the top surface of the raised part, and the second aluminum substrate is fixed on the annular surface; the LED light source includes a first LED light source and a second LED light source, and the first LED light source is set On the first aluminum substrate, the second LED light source is arranged on the second aluminum substrate, the first LED light source is connected to the driving power through a current limiting resistor; the second LED light source is directly connected to the driving power. 3. The novel LED ceiling lamp according to claim 1, wherein the groove is in the shape of a truncated cone. 4. The novel LED ceiling lamp according to claim 1, characterized in that, one side of the outer wall of the drive power supply box and one side of the inner wall of the groove form a cavity. 5. The novel LED ceiling lamp according to claim 1, wherein the lampshade is screwed to the lamp housing. 6. The novel LED ceiling lamp according to claim 1, wherein two ring-shaped protrusions are arranged on the back of the lamp housing. 7. The novel LED ceiling lamp according to claim 1, characterized in that, an annular groove is provided on the back of the lamp housing.