CN209819392U

CN209819392U - LED lamp

Info

Publication number: CN209819392U
Application number: CN201920024876.8U
Authority: CN
Inventors: 朱奕光; 赵俊杰; 陈浩
Original assignee: Foshan Electrical and Lighting Co Ltd
Current assignee: Foshan Electrical and Lighting Co Ltd
Priority date: 2019-01-07
Filing date: 2019-01-07
Publication date: 2019-12-20
Anticipated expiration: 2029-01-07

Abstract

The utility model discloses a LED lamp, including chassis, power, lamp shade, base plate, LED light source and cell-shell, the base plate is fixed on the chassis, the LED light source sets up on the base plate, the power is connected with LED light source electricity, the cell-shell lid is on the LED light source, and the light that the LED light source sent jets out through cell-shell and lamp shade in proper order, the cell-shell is made by polycarbonate, the thickness of cell-shell is 0.75-1.75 mm. The utility model discloses establish the cell-shell lid on the LED light source, not only can protect the LED light source, prevent the electric leakage, can also increase the luminous angle of LED light source, improve lamps and lanterns luminance, make the light that lamps and lanterns sent more even.

Description

LED lamp

Technical Field

The utility model relates to the field of lighting technology, especially, relate to a LED lamp.

Background

An existing LED lamp generally includes a chassis, a substrate, an LED light source, a power source, and a lamp housing. The power supply of the existing lamp is divided into an isolation power supply and a non-isolation power supply, and the non-isolation power supply is divided into a switching power supply and a linear power supply. The isolated power supply and the non-isolated switch power supply are used for reducing the voltage of 120V/220VAC to lower voltage by using a transformer and then rectifying the voltage into direct current output for supplying power. The transformer is called an isolated power supply because the primary winding of the transformer is subjected to 120V/220VAC voltage, the secondary winding is only subjected to output alternating voltage, and the primary winding and the secondary winding are not directly connected with each other. The conversion process of the transformer is as follows: electro-magnetic-electric, without connection to earth, so that no danger of electric shock occurs. The non-isolated linear power supply is directly input into an electronic circuit by 120V/220VAC, and the input and the output are directly connected through electronic elements after the voltage is boosted through the electronic elements. According to the safety requirement, a 5VA power box is required to be arranged outside the power supply.

The isolation power supply is large in size, multiple in components and high in cost compared with a non-isolation power supply. The cost of the non-isolated power switch power supply is higher than that of the linear power supply, and the cost of the photoelectric integrated scheme in the linear power supply is the lowest.

If the lamp with the isolated power supply is adopted, a lens is not required to be arranged outside the LED light source, light emitted by the LED light source is directly emitted out through the lampshade, the LED light source is distributed relatively, the area of the lamp panel is large, and the material cost is high. Secondly, keep apart the power output low voltage, the LED light source generally adopts the lamp pearl of 3V, and the lamp pearl that needs like this is more, and the cost is higher.

If a lamp with a non-isolated power supply is adopted, a lens is required to be arranged outside the LED light source to prevent electric leakage. It should be noted that, in the lamp without the isolated power supply, due to the use of the lens, the arrangement of the LED light sources can be concentrated, the number is relatively small, and the cost is much lower than that of the lamp with the isolated power supply. However, the lens mainly refracts light to diffuse the light, and part of the light is refracted to the chassis, thereby reducing the light extraction efficiency of the lamp. Secondly, in order to meet the safety requirements, the transparent polycarbonate material needs to be made of polycarbonate with 5AV fire-retardant rating, and the thickness needs to be more than 2 mm. The lens is added with a plurality of flame retardants and is thick, so that the light transmittance of the lens is low, and the number of LED light sources needs to be increased.

Disclosure of Invention

The utility model aims to solve the technical problem that a LED lamps and lanterns is provided, safe and reliable, LED light source is small in quantity, and luminance is high, and material cost is low, and the equipment is artifical few, and production efficiency is high.

In order to solve the technical problem, the utility model provides a LED lamp, including chassis, power, lamp shade, base plate, LED light source and cell-shell, the base plate is fixed on the chassis, the LED light source sets up on the base plate, the power is connected with LED light source electricity, the cell-shell lid is on the LED light source, and the light that the LED light source sent jets out through cell-shell and lamp shade in proper order, the cell-shell is made by polycarbonate, the thickness of cell-shell is 0.75-1.75 mm.

As an improvement of the scheme, the light transmittance of the bulb shell is more than 90%.

As an improvement of the scheme, the thickness of the top of the bulb shell is 0.3-1mm larger than that of the side wall.

As an improvement of the above scheme, the ratio of the width of the bulb shell to the width of the lampshade is 1: (2-5).

As an improvement of the scheme, the distance from the top of the bulb shell to the top of the lampshade is more than or equal to 40 mm.

As an improvement of the scheme, the shape of the bulb shell is matched with the arrangement shape of the LED light sources.

As a modification of the above, the bulb is shaped as a hemisphere, a cylinder or a cube.

As an improvement of the scheme, the bulb shell is made of polycarbonate with the flame retardant grade of V0.

As an improvement of the scheme, the power supply is a non-isolated power supply.

As an improvement of the scheme, the power supply is a non-isolated linear power supply, and the power supply and the LED light source are integrated photoelectrically and arranged in the bulb shell.

Implement the utility model discloses, following beneficial effect has:

1. the utility model discloses establish the cell-shell lid on the LED light source, not only can protect the LED light source, prevent the electric leakage, can also increase the luminous angle of LED light source, make the light that lamps and lanterns sent more even.

2. The utility model discloses a cell-shell is made to fire-retardant grade V0's polycarbonate, not only can reduce the thickness of traditional lens, can also increase the luminousness of cell-shell to increase the light-emitting luminance of lamps and lanterns, can accord with the ann rule requirement again, and then reduce the quantity of LED light source, reduce the lamps and lanterns cost.

3. The utility model discloses the cost of cell-shell is lower than the cost of lens, and the luminousness is higher, consequently compares with lens, the utility model discloses a LED light source quantity still less, the cost is lower.

4. The utility model discloses a structure to the cell-shell is injectd, and the thickness that makes the thickness at cell-shell top and the thickness of lateral wall have certain thickness poor for the lamps and lanterns light-emitting is more even.

5. The utility model discloses the width to the cell-shell and the proportion of the width of lamp shade and the distance at cell-shell top to the lamp shade top have been injectd, further make lamps and lanterns light-emitting more even.

Drawings

Fig. 1 is an exploded view of the LED lamp of the present invention;

fig. 2 is a cross-sectional view of the LED lamp of the present invention;

fig. 3 is a sectional view of the bulb shell of the present invention;

fig. 4 is a first light effect diagram of the LED lamp of the present invention;

fig. 5 is a second light effect diagram of the LED lamp of the present invention;

fig. 6 is a third light effect diagram of the LED lamp of the present invention;

fig. 7 is a schematic diagram of the LED lamp of the present invention in a scale;

fig. 8 is a fourth light effect diagram of the LED lamp of the present invention;

fig. 9 is a fifth light effect diagram of the LED lamp of the present invention;

fig. 10 is a light effect diagram six of the LED lamp of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the utility model provides a pair of LED lamp, including chassis 1, power 2, lamp shade 3, base plate 4, LED light source 5 and cell-shell 6, base plate 4 is fixed on chassis 1, LED light source 5 sets up on base plate 4, power 2 is connected with LED light source 5 electricity, cell-shell 6 lid is on LED light source 5, and the light that LED light source 5 sent jets out through cell-shell 6 and lamp shade 3 in proper order, cell-shell 6 is made by polycarbonate, the thickness of cell-shell 6 is 0.75-1.75 mm.

The utility model discloses establish 6 lids of cell-shell on LED light source 5, the light that LED light source 5 launched at first diffuses through cell-shell 6 to increased LED light source 5's light-emitting angle, the light that cell-shell 6 launched finally carries out the light-emitting through lamp shade 3, has finally increased the luminous angle of LED light source, and the light that makes lamps and lanterns send is more even. In addition, the bulb shell 6 can also protect the LED light source 5, so that the LED light source 5 is prevented from generating electric leakage, and the safety requirement of the lamp is met.

It should be noted that, because the utility model discloses a cell-shell 6 adopts Polycarbonate (PC) to make, compares with lens, the utility model discloses the thickness of cell-shell 6 can greatly reduced, and the luminousness of cell-shell 6 can improve greatly simultaneously, and is preferred, the thickness of cell-shell is 0.75-1.75 mm. If the thickness of the bulb shell is less than 0.75mm, the flame retardant grade is not enough, and the safety requirement is not met; if the thickness of the bulb shell is more than 1.75mm, the material cost is high, and the light transmittance is low. More preferably, the thickness of the bulb shell is 0.9-1.2 mm. In order to ensure that the lamp meets the safety requirements, it is preferred that the bulb 6 is made of polycarbonate with a flame retardant rating of V0.

Specifically, a certain amount of light diffusant needs to be added to the polycarbonate material for making the bulb 6, wherein the more the light diffusant is, the more uniform the light emission is, but the light transmittance is correspondingly reduced. Because the utility model discloses a structure to lamps and lanterns has carried out rational design for the light-emitting homogeneity meet requirements of lamps and lanterns, consequently the utility model discloses only need inject the luminousness of cell-shell, preferred, the luminousness of cell-shell is greater than 90%.

Further, compare with lens, the utility model discloses a cell-shell adopts Polycarbonate (PC) to make, and material cost and manufacturing cost can greatly reduced.

The utility model discloses establish 6 lids of cell-shell on LED light source 5, can increase LED light source 5's light-emitting angle, consequently LED light source 5 can concentrate the setting on base plate 4 to reduce the quantity of LED light source 5 and base plate 4's area. Furthermore, because the utility model discloses the luminousness of cell-shell is obviously higher than the luminousness of lens, consequently can further reduce LED light source 5's lamp pearl quantity. Wherein, lamps and lanterns of the same size and same luminance, the utility model discloses a LED light source 5's lamp pearl quantity can reduce 8% -15%.

In order to match the light emitting of the bulb shell, the utility model discloses the material of lamp shade 3 is the polymer of glass, polymethyl methacrylate, polycarbonate, polystyrene, methyl methacrylate and styrene.

The bulb 6 has a shape matching the arrangement of the LED light sources 5. Specifically, the shape of the bulb 6 is a hemisphere, a cylinder, or a cube, but is not limited thereto. Preferably, the bulb 6 is hemispherical in shape.

Referring to fig. 3, the top of the bulb 6 is thicker than the sidewalls, so that the light pattern emitted to the lamp housing 3 is uniform. Because the utility model discloses the material of cell-shell 6 has adopted polycarbonate, therefore the thickness at 6 tops of cell-shell can be greater than the thickness of lateral wall. Preferably, the thickness of the top of the bulb 6 is 0.3 to 1mm greater than the thickness of the side walls. If the thickness difference between the top of the bulb shell 6 and the side wall is less than 0.3mm, the thickness of the top of the bulb shell is too small, and finally emergent rays are concentrated on the top of the lamp; if the thickness difference between the top of the bulb shell 6 and the side wall is larger than 1mm, the thickness of the top of the bulb shell is too large, and the light transmittance of the bulb shell is reduced.

Specifically, referring to fig. 4 to 6, fig. 4 is a diagram of the light emitting effect of the lamp when the thickness of the top of the bulb is 0.3mm greater than that of the side wall; FIG. 5 is a diagram of the light extraction effect of the lamp when the thickness of the top of the bulb is 0.6mm greater than the thickness of the sidewall; FIG. 6 is a diagram showing the light extraction effect of the lamp when the thickness of the top of the bulb is 1mm greater than the thickness of the sidewall.

Referring to fig. 7, the ratio of the width (D) of the bulb to the width (D) of the lamp shade, and the distance (H) from the top of the bulb to the top of the lamp shade, have an important influence on the overall light-emitting uniformity of the lamp. Specifically, the ratio of the width (D) of the bulb shell to the width (D) of the lampshade is 1: (2-5). And the distance (H) from the top of the bulb shell to the top of the lampshade is more than or equal to 40 mm. If the ratio of the width (D) of the bulb shell to the width (D) of the lampshade is less than 1: 5, the light type is too concentrated, and the edge of the lampshade has a very obvious dark area; if the ratio of the width (D) of the bulb shell to the width (D) of the lampshade is more than 1: 2, the area of the bulb shell is too large, and the material cost is high.

In addition, if the distance (H) from the top of the bulb shell to the top of the lampshade is less than 40mm, the distance between the bulb shell and the lampshade is too small, light rays are concentrated on the top of the lampshade to emit light, and therefore the lamp emits light unevenly, the middle is bright, and the edge is dark. Specifically, referring to fig. 8 to 10, fig. 8 is a schematic diagram of light emitted from the lamp when the distance (H) from the top of the bulb to the top of the lamp cover is 40 mm; FIG. 9 is a schematic diagram of the light output of the lamp at a distance (H) of 60mm from the top of the bulb to the top of the globe; fig. 10 is a schematic diagram of the light emission of the lamp when the distance (H) from the top of the bulb to the top of the globe is 80 mm.

The utility model discloses a power 2 is the non-isolation power. Preferably, the power supply 2 is a non-isolated linear power supply. Because the utility model discloses establish 6 lids of cell-shell on LED light source 5 in order to prevent the electric leakage to reduce cost. The power source 2 may be disposed inside the bulb 6 or outside the bulb 6. If power 2 sets up in cell-shell 6, then can predetermine power 2 and LED light source 5 on base plate 4 in advance, realize the optoelectronic integration, the automatic installation of being convenient for reduces the human cost, does benefit to production automation.

It should be noted that the lamp of the present invention is a ceiling lamp, but is not limited thereto. The lampshade 3 is connected to the chassis 1 to form an accommodating cavity; the base plate 4 is fixed on the chassis 1 through a fixing piece, wherein the power supply 2, the base plate 4, the LED light source 5 and the bulb shell 6 are all arranged in the accommodating cavity.

The outward flange of lamp shade 3 is equipped with draw-in groove 31, the inside wall of chassis 1 is equipped with the screens arch, lamp shade 3 can be through rotatory with the protruding card of screens in draw-in groove 31 to install lamp shade 3 on chassis 1.

The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.

Claims

1. The LED lamp is characterized by comprising a chassis, a power supply, a lampshade, a substrate, an LED light source and a bulb shell, wherein the substrate is fixed on the chassis, the LED light source is arranged on the substrate, the power supply is electrically connected with the LED light source, the bulb shell is covered on the LED light source, light emitted by the LED light source is emitted out through the bulb shell and the lampshade in sequence, the bulb shell is made of polycarbonate, and the thickness of the bulb shell is 0.75-1.75 mm.

2. The LED light fixture of claim 1 wherein the light transmittance of the bulb is greater than 90%.

3. The LED light fixture of claim 1 or 2 wherein the thickness of the top of the blister is 0.3-1mm greater than the thickness of the sidewalls.

4. The LED light fixture of claim 1 wherein the ratio of the width of the bulb to the width of the globe is 1: (2-5).

5. The LED lamp of claim 4 wherein the distance from the top of the bulb to the top of the globe is 40mm or greater.

6. The LED light fixture of claim 1 wherein the blister has a shape that matches the shape of the array of LED light sources.

7. The LED light fixture of claim 6 wherein the bulb is hemispherical, cylindrical, or cubical in shape.

8. The LED light fixture of claim 1 wherein the blister is made of polycarbonate grade flame retardant V0.

9. The LED light fixture of claim 1 wherein the power source is a non-isolated power source.

10. The LED light fixture of claim 9 wherein the power supply is a non-isolated linear power supply that is optoelectronically integrated with the LED light source and disposed within the bulb.