Down lamp capable of emitting light positively

Abstract

The utility model provides a down lamp capable of emitting light positively. The down lamp capable of emitting light positively comprises a radiator, a reflection cup, a light source plate and a diffusion plate. The radiator is provided with a penetrating cavity used for containing the reflection cup, and the light source plate and the diffusion plate are fixed to the upper side and the lower side of the penetrating cavity in the height direction respectively. LED lamp beads which are arranged in a concentric circle mode are arranged on the side, facing the diffusion plate, of the light source plate, the LED lamp beads are divided into two paths with different color temperatures, the two paths of LED lamp beads on the same concentric circle are distributed in a staggered mode, and the distance between the edges of every two adjacent LED lamp beads on the same path of LED lamp beads is not larger than 10 mm.

Description

TECHNICAL FIELD

[0001] The utility model relates to lighting device especially involves the down lamp. BACKGROUND

[0002] Now the panel lamp of super thin, is using the side light principle, with the light guide plate the light refraction of sticking in the side wall lamp pearl again through the reflection paper reflection, the light of outside. The defect is, light source long and complex, light efficiency is low, light color is interfered by many factors, because the complex principle, also decided that the product structure is very complex, such as Figure 1 As shown, material cost, process production cost is high, and the product quality stability is not high. The market also appears the product of normal light, but the volume, thickness is very big, has completely lost the maximum highlight of super thin, the more small size panel lamp, the more big thickness makes the product appearance odd, reduces the consumer purchase desire. INVENTION CONTENTS

[0003] The utility model provides a kind of down lamp of normal light, the thickness of down lamp is reduced under the light-emitting way of normal light.

[0004] In order to solve the above technical problems, the utility model provides a kind of down lamp of normal light, comprising: radiator, reflector cup, light source plate and diffusion plate;

[0005] The radiator is provided with a through cavity for accommodating the reflector cup, and the light source plate and the diffusion plate are fixed on the upper side and the lower side of the through cavity along the height direction;

[0006] The side of the light source plate towards the diffusion plate is provided with LED lamp beads arranged in concentric circles, the LED lamp beads are divided into two paths with different color temperatures, the two paths of LED lamp beads on the same concentric circle are staggered distributed, and the edge-to-edge distance of adjacent two LED lamp beads on the same path of LED lamp beads is not more than 10mm.

[0007] In a preferred embodiment: the radiator is provided with a plurality of notches along the circumferential direction on the upper side along the height direction of the through cavity, and the side of the radiator is provided with connecting columns corresponding to the positions of the notches;The light source plate is provided with lugs corresponding to the positions of the notches;The lug and the connecting column are fixed by bolt.

[0008] In a preferred embodiment: the thickness of the down lamp is less than 18mm.

[0009] In a preferred embodiment: the reflector cup includes a structure with gradually increasing opening along the light path direction, and a convex edge is extended outward along the radial direction on the side of the reflector cup towards the diffusion plate.

[0010] In a preferred embodiment, the heat sink extends a decorative ring radially outward along the lower side in the height direction through the chamber.

[0011] In a preferred embodiment, the back of the decorative ring extends a column in the height direction through the chamber, and the column is used to mount the elastic arm.

[0012] In a preferred embodiment, one end of the elastic arm is coiled into a spring shape, and the other end is inserted into the spring.

[0013] In a preferred embodiment, the upper end of the column has an open slot, and the two sides of the open slot extend towards each other to form a limiting column inserted into the spring.

[0014] In a preferred embodiment, a power supply box is further included, the power supply box is built-in with a driving circuit board and is connected to the light source board through a power supply line.

[0015] In a preferred embodiment, the power supply line is divided into a first part and a second part, and the first part and the second part are connected in a male-female end to form electrical connection and mechanical connection.

[0016] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0017] The utility model discloses a cylindrical lamp of positive light emission, adopts positive light emission technology, uses two-way lamp pearl interval arrangement, forms the effect of dense arrangement, effectively solves the shortcoming of side light emission cylindrical lamp, and also can realize the appearance of ultrathin. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the schematic diagram of the cylindrical lamp in the preferred embodiment of the utility model;

[0019] Figure 2 It is the explosion drawing of the cylindrical lamp in the preferred embodiment of the utility model;

[0020] Figure 3 It is the arrangement schematic diagram of LED lamp pearl on the light source board in the preferred embodiment of the utility model. DETAILED DESCRIPTION

[0021] In order to make the technical scheme and characteristics of the utility model more clear, the utility model is further explained in detail in the following with reference to the drawings and specific examples, and it should be understood that these examples are only used for explaining the utility model and are not used for limiting the scope of the utility model, and after reading the utility model, the modification of various equivalent forms of the utility model by the person skilled in the art falls within the range defined by the appended claims of the application.

[0022] REFERENCE Figures 1-3The embodiment provides a positive light-emitting down lamp, which comprises a heat sink 1, a light-reflecting cup 2, a light source plate 3 and a diffusion plate 4.

[0023] The heat sink 1 is provided with a through cavity for accommodating the light-reflecting cup 2, and the light source plate 3 and the diffusion plate 4 are fixed on the upper side and the lower side of the through cavity along the height direction respectively.

[0024] The side of the light source plate 3 facing the diffusion plate 4 is provided with LED lamp beads arranged in concentric circles, the LED lamp beads are divided into two paths with different color temperatures, and the two paths of LED lamp beads on the same week concentric circle are staggered. Figure 3 W and C are distinguished, wherein W represents a warm light LED, and C represents a cold light LED. It can be seen that the two paths of LED lamp beads on the same week concentric circle are staggered, and the edge-to-edge spacing of two adjacent LED lamp beads on the same path is not greater than 10 mm. Therefore, the above-mentioned positive light-emitting down lamp adopts the positive light-emitting technology, uses the two-path lamp bead interval arrangement, forms the dense arrangement effect, effectively solves the shortcomings of the side light-emitting down lamp, and also can realize the ultra-thin appearance, so that the thickness of the down lamp is less than 18 mm.

[0025] To install the light source plate 3, the heat sink 1 in the embodiment is provided with a plurality of notches 11 along the upper side of the through cavity along the height direction, and the side of the heat sink 1 is provided with a connecting column 12 corresponding to the position of the notch 11; the light source plate 3 is provided with a lug 31 corresponding to the position of the notch 11; and the lug 31 and the connecting column 12 are fixed by a bolt 5.

[0026] In addition, the light-reflecting cup 2 comprises a structure with gradually increasing openings along the light path direction, and a convex edge 21 is extended outward in a circle on the side of the light-reflecting cup 2 facing the diffusion plate 4 along the radial direction. The heat sink 1 is provided with a decorative ring 13 extending outward in a circle along the radial direction on the lower side of the through cavity along the height direction.

[0027] To realize the fixed connection of the down lamp and the hole on the ceiling, the back of the decorative ring 13 extends a stand column 14 along the height direction of the through cavity, and the stand column 14 is used for installing an elastic arm 6. One end of the elastic arm 6 is wound into a spring shape, and the other end is inserted into the spring. The upper end of the stand column 14 is provided with an open insertion slot 141, and the two sides of the opening of the insertion slot 141 extend towards each other to form a limiting column 142 inserted into the spring.

[0028] Finally, a power supply box 7 is further included, the power supply box 7 is built-in with a driving circuit board 71 and is connected to the light source plate 3 through a power supply line 78. The power supply line is divided into a first part and a second part, and the first part and the second part are connected in electrical connection and mechanical connection through male and female end insertion.

[0029] The above is only one specific embodiment of the present application, but the design concept of the present application is not limited thereto, and any non-substantial modification of the present application using the concept shall be deemed as an infringement of the protection scope of the present application.

Claims

1. A downlight emitting light in a forward direction, characterized by The application relates to a down lamp, which comprises a heat sink, a light cup, a light source plate and a diffusion plate. The heat sink is provided with a through cavity for accommodating the light cup, and the light source plate and the diffusion plate are fixed on the upper side and the lower side of the through cavity along the height direction respectively. The side of the light source plate facing the diffusion plate is provided with LED lamp beads arranged in concentric circles, the LED lamp beads are divided into two paths with different color temperatures, the two paths of LED lamp beads on the same concentric circle are staggered, and the edge-to-edge distance of two adjacent LED lamp beads on the same path is not greater than 10 mm. The heat sink is provided with a plurality of notches along the upper side of the through cavity along the height direction and along the circumferential direction, the side surface of the heat sink is provided with connecting columns at positions corresponding to the notches, the light source plate is provided with lugs at positions corresponding to the notches, and the lugs and the connecting columns are fixed through bolts.

2. A tube lamp according to claim 1, characterized in that: The thickness of the down lamp is less than 18 mm.

3. A tube lamp according to claim 1, characterized in that: The light cup comprises a structure with gradually increasing openings along the light path direction, and a convex edge is extended outward along the radial direction at the outer periphery of the opening on the side of the light cup facing the diffusion plate.

4. A tube lamp according to claim 1, characterized in that: The heat sink is provided with a decorative ring extended outward along the radial direction on the lower side of the through cavity along the height direction.

5. A tube lamp according to claim 1, characterized in that: The back of the decorative ring is extended along the height direction of the through cavity to form a stand column, and the stand column is used for mounting an elastic arm.

6. A tube lamp according to claim 5, characterized in that: One end of the elastic arm is wound into a spring shape, and the other end is inserted into the spring.

7. A tube lamp according to claim 6, characterized in that: The upper end of the stand column is provided with an open slot, and the two sides of the opening of the slot are extended towards each other to form a limiting column inserted into the spring.

8. A tube lamp according to claim 7, characterized in that: The power supply box is further provided with a driving circuit board and is connected to the light source plate through a power line.

9. A tube lamp according to claim 1, characterized in that: The power line is divided into a first part and a second part, and the first part and the second part are connected through male and female ends to form electrical connection and mechanical connection.

10. A tube lamp according to claim 9, characterized in that: ​

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