CN107143760A - An LED lamp with irregular shape and uniform light emission without dark corners - Google Patents

Abstract

The invention provides an LED lamp with an irregular shape, uniform light emission and no dark corner, which comprises an outer shell and a base, wherein the outer shell is provided with a plurality of LED light sources; two cross sections of the outer shell, which are vertical to each other in the vertical direction, are axially symmetrical along the vertical direction respectively; the first section comprises a semi-circular arc, and two ends of the semi-circular arc are connected through a horizontal section; the second section comprises a curve section with one open end, the open ends of the curve sections are connected through a horizontal section, and the width of the area surrounded by the curve sections is gradually reduced from the middle to the two ends along the vertical direction; the side wall of the outer shell is provided with a through opening along the horizontal direction in the direction deviating from the symmetry axis, and the light source plate is arranged on the side wall of the through opening and emits light towards the inside of the outer shell; the quantity of the lamp beads on the light source board and on the side with shorter distance from the over-half arc is smaller than that on the other side. The invention provides an LED lamp which has an aesthetic appearance, and the whole outer shell of the LED lamp can uniformly emit light without a dark corner.

Description

An LED lamp with irregular shape and uniform light emission without dark corners

technical field

The invention relates to an illuminating device, in particular to an LED lamp.

Background technique

In the lighting market, people's requirements for the aesthetic appearance of the lighting have become stronger and stronger. In a traditional lamp, generally a light bulb and a lampshade are provided. Make some designs on the shape of the lampshade to increase the beauty or artistic sense of the whole lamp. The problem brought about by this is that the lampshade and the bulb are two separate entities, and the bulbs chosen by consumers may be various, and the light output angle and brightness of each bulb are different. In this way, when manufacturers design lampshades, they often cannot make corresponding designs for the light output, and the focus is entirely on the shape. Although the produced lamps have a good-looking appearance, they tend to have uneven brightness or dark areas after lighting up.

Another kind of lamp with LED light source built in the lampshade is not replaceable. In order to ensure the uniformity of light output, the lampshade is often simply designed as a simple symmetrical figure, and the characteristics of uniform light emission of LED lamp beads in all directions are used to realize the lampshade. uniform light output. The lamps and lanterns designed in this way are stereotyped and have no personality.

Contents of the invention

The main technical problem to be solved by the present invention is to provide an LED lamp. While having an aesthetically pleasing appearance, the entire outer shell of the LED lamp can realize uniform light emission without dark corners.

In order to solve the above-mentioned technical problems, the present invention provides an LED lamp with irregular shape and uniform luminescence without vignetting, which includes an outer shell and a base; the two vertical sections of the outer shell are respectively It is an axisymmetric section along the vertical direction; and the first section includes a half-arc, and the two ends of the half-arc section are connected by a horizontal section; the second section includes a curved section with an open end, and the open end of the curved section passes through A horizontal segment is connected, and the width of the area surrounded by the curved segment decreases gradually from the middle to both ends along the vertical direction;

The section of the outer casing along the horizontal direction is a circle of closed curve segments, and the width of the area surrounded by the closed curve segments decreases gradually along the horizontal direction from the middle to both ends, and the width of one end is larger than that of the other end. width;

The side wall of the outer casing is provided with a through opening along the horizontal direction in a direction deviated from the axis of symmetry, and the LED light source board is arranged on the side wall of the through opening, and emits light toward the inside of the outer casing;

In the first section of the through opening, the two sides along the horizontal direction have different distances from the half-arc on the same side; The number is less than the side of the LED light source board with a longer distance from the half-arc;

The LED light source board is also equipped with a first light diffusion device and a second light diffusion device on both sides of the horizontal direction; wherein, the first light diffusion device located on the side of the LED light source board with a shorter distance from the half-arc The light transmittance of the device is smaller than that of the second light diffusing device, and the light emitting angle of the first light diffusing device is smaller than that of the second light diffusing device.

In a preferred embodiment: the first light diffusing device and the second light diffusing device cover the surface of the LED light bead circumferentially along the inner wall of the penetrating opening.

In a preferred embodiment: the first light diffusion device and the second light diffusion device have inner arc-shaped closing ends at the ends close to each other.

In a preferred embodiment: the first light diffusion device is a milky white diffusion cover, and the second light diffusion device is a PC lens.

The present invention also provides an LED lamp with irregular shape and uniform luminescence without vignetting, which includes an outer shell and a base; the two vertical sections of the outer shell are respectively along the vertical direction Axisymmetric section; and the first section includes a half-arc, the two ends of the half-arc section are connected by a horizontal section; the second section includes a curved section with an open end, and the open end of the curved section is connected by a horizontal section, and The width of the area surrounded by the curve segment decreases gradually along the vertical direction from the middle to both ends;

The section of the outer casing along the horizontal direction is a circle of closed curve segments, and the width of the area surrounded by the closed curve segments decreases gradually along the horizontal direction from the middle to both ends, and the width of one end is larger than that of the other end. width;

The side wall of the outer casing is provided with a through opening along the horizontal direction in a direction deviating from the axis of symmetry, and a first LED light source board is provided at the horizontal section of the first section; the two ends of the first LED light source board are respectively connected to The two ends of the horizontal section are connected, and the middle part protrudes along the direction away from the horizontal section;

The side of the through opening facing away from the first LED light source board is coated with a second LED light source board; the first LED light source board and the second LED light source board respectively emit light into the outer shell; The side of the opening facing the first LED light source board is covered with a reflector to reflect the light emitted by the first LED light source board onto the reflector to the surroundings.

The present invention also provides an LED lamp with irregular shape and uniform luminescence without vignetting, which includes an outer shell and a base; the two vertical sections of the outer shell are respectively along the vertical direction Axisymmetric section; and the first section includes a half-arc, the two ends of the half-arc section are connected by a horizontal section; the second section includes a curved section with an open end, and the open end of the curved section is connected by a horizontal section, and The width of the area surrounded by the curve segment decreases gradually along the vertical direction from the middle to both ends;

The section of the outer casing along the horizontal direction is a circle of closed curve segments, and the width of the area surrounded by the closed curve segments decreases gradually along the horizontal direction from the middle to both ends, and the width of one end is larger than that of the other end. width;

The side wall of the outer shell is provided with a through opening along the horizontal direction in a direction deviating from the axis of symmetry, and a first LED light source board is provided outside the side wall of the through opening, and emits light toward the outer shell;

In the first cross-section of the through opening, the distances between the two sides along the horizontal direction and the half-arc on the same side are different; On the side of the LED light source board with a longer distance from the half-arc, the number of lamp beads gradually increases;

Both sides of the opening end of the first LED light source board facing the through opening respectively have second LED light source boards extending toward the through opening, and LED light beads are provided on the part of the second LED light source board facing the opening end of the through opening.

In a preferred embodiment: the position corresponding to the outer casing and the plane section is an installation opening, and the base is connected to the outer casing through the installation opening; the base includes a drive circuit, a power supply, and a power supply for fixed placement. and drive circuit mounts.

In a preferred embodiment: it also includes a hollow metal cylinder with two ends open, which is installed on the side wall of the through opening; the LED light source board is wrapped on the side of the metal cylinder facing the outer shell .

In a preferred embodiment: the metal cylinder is electrically connected to the driving circuit, touching the metal cylinder causes the driving circuit to control the LED light bead to turn on or off.

In a preferred embodiment: the outer casing is made of resin through 3D printing.

Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

The invention provides an LED lamp with irregular shape and uniform light emission without dark corners. By controlling the number of LED lamp beads in the outer shell and the light emitting direction, the entire outer shell can present a uniform light-emitting state without dark corners. It is not required that the outer casing must have a regular and symmetrical shape. In this way, the lampshade of the LED lamp is no longer limited to a few simple symmetrical figures. Even if it is a relatively complex and irregular shape, the entire lampshade can still emit light evenly without dark corners. The whole lamp is transparent and round, which can add color to the home. Not a lot.

Description of drawings

Fig. 1 is a front view of the LED lamp in the preferred embodiment 1 of the present invention in the direction of the first section;

Fig. 2 is a front view of the LED lamp in the preferred embodiment 1 of the present invention in the direction of the second section;

Fig. 3 is a top view of the LED lamp in the horizontal direction in preferred embodiment 1 of the present invention;

Fig. 4 is an exploded view of the structure of the LED lamp in preferred embodiment 1 of the present invention;

Fig. 5 is a structural perspective view of an LED lamp in preferred embodiment 1 of the present invention;

Fig. 6 is an exploded view of the structure of the LED lamp in preferred embodiment 2 of the present invention;

Fig. 7 is a structural perspective view of an LED lamp in preferred embodiment 2 of the present invention;

Fig. 8 is an exploded view of the structure of the LED lamp in preferred embodiment 3 of the present invention;

Fig. 9 is a perspective view of the structure of the LED lamp in the preferred embodiment 3 of the present invention.

detailed description

In order to make the technical solution of the present invention clearer, the present invention will be described in further detail in conjunction with embodiment and accompanying drawing now:

Referring to Figures 1-5, an LED lamp with irregular shape and uniform luminescence without vignetting includes an outer shell 1 and a base 2; the outer shell 1 is an irregular shape made of resin through 3D printing. The specific shape is as follows:

The two cross-sections of the outer casing 1 perpendicular to each other in the vertical direction are respectively axisymmetric cross-sections along the vertical direction; and the first cross-section includes a half-arc, and the two ends of the half-arc section are connected by a horizontal section The second section includes a curved section with an open end, the open ends of the curved section are connected by a horizontal section, and the width of the area surrounded by the curved section gradually decreases from the middle to both ends along the vertical direction;

The section of the outer casing 1 along the horizontal direction is a circle of closed curve segments, and the width of the area surrounded by the closed curve segments decreases gradually along the horizontal direction from the middle to both ends, and the width of one end is larger than that of the other end the width;

The side wall of the outer casing 1 is provided with a through opening 11 along the horizontal direction in a direction deviated from the axis of symmetry, and the LED light source board 12 is arranged on the side wall of the through opening 11, and emits light toward the inside of the outer casing 1;

In the first cross-section of the through opening 11, the distances between the two sides along the horizontal direction and the half-arc on the same side are different; The number of lamp beads is smaller than the side on the LED light source board 12 with a longer distance from the semi-circular arc;

The LED light source board 12 is also equipped with a first light diffusion device 13 and a second light diffusion device 14 on both sides of the horizontal direction; The light transmittance of the first light diffusing device 13 is lower than that of the second light diffusing device 14 , and the light emitting angle of the first light diffusing device 13 is smaller than the light emitting angle of the second light diffusing device 14 .

The purpose of such arrangement is: since the through opening 11 is arranged in a direction deviated from the axis of symmetry, the distances between the two sides of the through opening 11 and the two sides of the outer casing 1 are different. If the same number of LED lamp beads are arranged on the LED light source board 12 on both sides of the opening 11, it will inevitably cause the brightness of the side closer to the outer casing 1 to be significantly greater than the brightness of the other side, so that the brightness of the entire outer casing 1 Just not even enough. Therefore, it is necessary to reduce the number of LED lamp beads on the side close to the outer casing 1 . In addition, it is also necessary to set the light transmittance of the first light diffusion device 13 to be lower than the light transmittance of the second light diffusion device 14, so that the light extraction efficiency of the LED lamp beads on the side close to the outer shell 1 is reduced, so as to achieve the Brightness remains in a uniform range.

In order to make the entire outer casing 1 serve as a light-emitting surface, it is necessary to diffuse the light emitted by the LED lamp beads to avoid dark areas on the outer casing 1 . It is also because the distances between the two sides of the through opening 11 and the two sides of the outer shell 1 are different, and the LED lamp beads on the side farther away from the outer shell 1 will cover a larger area, so the side farther away from the outer shell 1 The light emission angle of the LED lamp beads should also be larger. Therefore, the light transmittance of the first light diffusing device 13 is lower than the light transmittance of the second light diffusing device 14 .

In order to achieve the above effects, in this embodiment, the first light diffusion device 13 is a milky white diffusion cover, and the second light diffusion device 14 is a PC lens. Moreover, the first light diffusing device 13 and the second light diffusing device 14 wrap around the surface of the LED light bead along the inner wall of the through opening 11 in the circumferential direction.

In order to prevent the light emitted by the LED lamp bead from forming light spots on the outer casing 1 at the junction of the first light diffusion device 13 and the second light diffusion device 14, the first light diffusion device 13 and the second light diffusion device 14 There are inner curved ends at the ends close to each other.

In this embodiment, in order to realize the installation of the base 2, the position corresponding to the outer casing 1 and the plane section is an installation opening, and the base 2 is connected to the outer casing 1 through the installation opening; the base 2 includes a driving circuit 21. The power supply 22 and the fixing seat 23 for fixing the power supply 22 and the driving circuit 21.

Finally, in order to realize the opening action of the LED lamp bead, it also includes a hollow metal cylinder 3 with both ends open, which is installed on the side wall of the through opening 11; the LED light source board 12 is wrapped on the metal cylinder The body 3 faces one side inside the outer shell 1 . The metal cylinder 3 is electrically connected to the driving circuit 21 , touching the metal cylinder 3 causes the driving circuit 21 to control the LED lamp bead to turn on or off.

Through the above settings, the lampshade of the LED lamp is no longer limited to several simple symmetrical figures. Even if it is a relatively complex and irregular shape, the entire lampshade can still emit light evenly without dark corners, and the whole lamp is transparent and round. Home improvement a lot.

Example 2

Referring to FIGS. 6-7 , in this embodiment, the structure of the lamp housing 1 and the structure of the lamp holder 2 are completely the same as those of the embodiment 1, and will not be repeated here.

A first LED light source board 13' is provided at the horizontal section of the first section; the two ends of the first LED light source board 13' are respectively connected to the two ends of the horizontal section, and the middle part is along the direction convex;

The side of the through opening 11 facing away from the first LED light source board 13' is coated with a second LED light source board 12'; the first LED light source board 13' and the second LED light source board 12' respectively The outer casing 1 emits light; the through opening 11 is covered with a reflector 14' on the side facing the first LED light source board 13', and the first LED light source board 13' is projected onto the reflector 14' light reflected in all directions.

This design is in order to avoid that the light emitted on the first LED light source board 13' is blocked by the metal cylinder 3 at the open end 11, so that a dark area appears. Therefore, this part of the light is reflected by the reflector 14'. Likewise, the same as in Embodiment 1, the purpose of the entire outer shell 1 emitting light evenly without dark corners can be achieved.

Example 3

Referring to Figs. 8-9, in this embodiment, the structure of the lamp housing 1 and the structure of the lamp holder 2 are completely the same as those of the embodiment 1, and will not be repeated here. The side wall of the through opening 11 is covered with a first LED light source board 12 ″, and emits light toward the outer casing 1;

In the first section of the through opening 11, the two sides along the horizontal direction have different distances from the half-arc on the same side; the one on the first LED light source board 12" with a shorter distance from the half-arc From the side to the side of the first LED light source board 12", the number of lamp beads increases gradually;

Both sides of the opening end of the first LED light source board 12" facing the through opening 11 respectively have a second LED light source board 13" extending toward the through opening, and the part of the second LED light source board 13" facing the opening end of the through opening 11 is provided with LED lamp bead. Since the first light source board 12 " emits light toward the two sides of the through opening 11, and the second light source board emits light toward the front and rear sides of the through opening 11, it can also achieve the same as the embodiment 1, to achieve the entire outer casing 1 The purpose of uniform light without vignetting.

The above is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto. Any person familiar with the technical field can use this concept to carry out the present invention within the technical scope disclosed in the present invention. Non-substantial changes all belong to the act of violating the protection scope of the present invention.

Claims (10)

1. a kind of have the LED of irregular contour and uniformly light-emitting without dark angle, it is characterised in that including a shell body and base； Orthogonal two sections of shell body in the vertical direction are respectively along the axisymmetric section of vertical direction；And the One section includes one and crosses semi arch, and the two ends of more than half arc sections are connected by a horizontal segment；Second section includes one end open Curved section, the openend of curved section is connected by a horizontal segment, and the curved section area encompassed width is along vertical It is gradually reduced on direction by centre to two ends；

The shell body closes curved section, the closed curve section area encompassed along the section in horizontal direction in a trap Width is gradually reduced along in horizontal direction by centre to two ends, and the width of the width more than the other end of one end；

The side wall of the shell body is provided with one along horizontal direction in the direction for deviateing symmetry axis and runs through opening, and LED light source plate is set It is placed in the side wall for running through opening, and towards emergent ray in the shell body；

It is described through opening in the first section, the distance of its both sides along horizontal direction and the mistake semi arch positioned at homonymy not phase Together；It is less than on the LED light source plate with crossing the quantity of shorter its LED lamp bead of side of semi arch distance on LED light source plate and mistake The longer side of semi arch distance；

Both sides of the LED light source plate along horizontal direction are also separately installed with the first smooth disperser and the second light diffusion dress Put；Wherein, the light transmittance of the first smooth disperser on LED light source plate with crossing the shorter side of semi arch distance is less than the The light transmittance of two smooth dispersers, and the first smooth disperser beam projecting angle be less than the second smooth disperser light go out Firing angle.

2. according to claim 1 a kind of with the LED of irregular contour and uniformly light-emitting without dark angle, its feature exists In：The first smooth disperser and the second smooth disperser are circumferentially coated on the LED lamp bead along the inwall through opening Surface.

3. according to claim 2 a kind of with the LED of irregular contour and uniformly light-emitting without dark angle, its feature exists In：The first smooth disperser and the second smooth disperser have arc closing in end close to each other.

4. according to claim 2 a kind of with the LED of irregular contour and uniformly light-emitting without dark angle, its feature exists In：The first smooth disperser is milky white diffusion shell, and the second smooth disperser is PC lens.

5. a kind of have the LED of irregular contour and uniformly light-emitting without dark angle, it is characterised in that including a shell body and base； Orthogonal two sections of shell body in the vertical direction are respectively along the axisymmetric section of vertical direction；And the One section includes one and crosses semi arch, and the two ends of more than half arc sections are connected by a horizontal segment；Second section includes one end open Curved section, the openend of curved section is connected by a horizontal segment, and the curved section area encompassed width is along vertical It is gradually reduced on direction by centre to two ends；

The shell body closes curved section, the closed curve section area encompassed along the section in horizontal direction in a trap Width is gradually reduced along in horizontal direction by centre to two ends, and the width of the width more than the other end of one end；

The side wall of the shell body is provided with one along horizontal direction in the direction for deviateing symmetry axis and runs through opening, first section Horizontal segment at set the first LED light source plate；The two ends of the first LED light source plate connect with the two ends of the horizontal segment respectively Connect, middle part is raised along the direction away from the horizontal segment；

It is described through opening dorsad the first LED light source plate side cladding set the second LED light source plate；First LED Light source board, the second LED light source plate are respectively towards emergent ray in the shell body；The opening that runs through is towards the first LED The side cladding of light source board sets a reflector, and the light that the first LED light source plate is incident upon on reflector reflects to surrounding.

6. a kind of have the LED of irregular contour and uniformly light-emitting without dark angle, it is characterised in that including a shell body and base； Orthogonal two sections of shell body in the vertical direction are respectively along the axisymmetric section of vertical direction；And the One section includes one and crosses semi arch, and the two ends of more than half arc sections are connected by a horizontal segment；Second section includes one end open Curved section, the openend of curved section is connected by a horizontal segment, and the curved section area encompassed width is along vertical It is gradually reduced on direction by centre to two ends；

The shell body closes curved section, the closed curve section area encompassed along the section in horizontal direction in a trap Width is gradually reduced along in horizontal direction by centre to two ends, and the width of the width more than the other end of one end；

The side wall of the shell body is provided with one along horizontal direction in the direction for deviateing symmetry axis and runs through opening, described to run through opening Outer sheathed setting the first LED light source plate of side wall, and towards emergent ray in the shell body；

It is described through opening in the first section, the distance of its both sides along horizontal direction and the mistake semi arch positioned at homonymy not phase Together；With crossing on semi arch distance shorter side to the first LED light source plate with crossing semi arch distance on the first LED light source plate Longer side, the increase of its lamp bead graded amounts；

The first LED light source plate has towards second extended through opening respectively towards the both sides of the openend through opening LED light source plate, the second LED light source plate is provided with LED lamp bead towards the part of the openend through opening.

7. it is a kind of with the LED of irregular contour and uniformly light-emitting without dark angle according to any one of claim 1-6, It is characterized in that：Shell body position corresponding with the planar section is installing port, and the base is by the installing port and outside Housing is connected；The base includes drive circuit, power supply and the fixed seat for fixed placement power supply and drive circuit.

8. according to claim 7 a kind of with the LED of irregular contour and uniformly light-emitting without dark angle, its feature exists In：Also include the hollow metal cylinder of a both ends open, it is installed on the side wall for running through opening；The LED light source plate bag The metal cartridge is overlying on towards the side in shell body.

9. according to claim 8 a kind of with the LED of irregular contour and uniformly light-emitting without dark angle, its feature exists In：The metal cartridge is electrically connected with drive circuit, is touched metal cartridge and is caused drive circuit to control LED lamp bead to light or put out Go out.

10. according to claim 7 a kind of with the LED of irregular contour and uniformly light-emitting without dark angle, its feature exists In：The shell body is made for resin through 3D printing.