CN212840787U

CN212840787U - LED lamp

Info

Publication number: CN212840787U
Application number: CN202021177627.1U
Authority: CN
Inventors: 张国兴; 赖中平
Original assignee: Nanjing Dingteng Graphene Lighting Technology Co ltd
Current assignee: Nanjing Dingteng Graphene Lighting Technology Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-03-30
Anticipated expiration: 2030-06-23

Abstract

The application provides an LED lamp, LED lamp includes: the LED lamp core is provided with a spiral circuit board, one end of the spiral circuit board is connected with a first conductive support on the core column, and the other opposite end of the spiral circuit board is connected with a second conductive support on the core column, so that the spiral circuit board can extend and be arranged in a spiral mode along the axial direction.

Description

LED lamp

Technical Field

The present disclosure relates to lighting devices, and particularly to a lighting device with an LED lamp core.

Background

With the demand for energy and carbon saving and the rising awareness of environmental protection, the world countries have gradually replaced the traditional tungsten filament lamps or mercury lamps with LEDs. LEDs have the advantages of small size, low power consumption, long service life, and fast operation response, and are now widely used as backlight sources for electronic products such as sign lamps, advertisement lamps, automobile and motorcycle light sources, outdoor or household lighting devices, displays, and computer peripherals.

In the technical field of the existing lighting, in order to increase the light projection range of the LED lamp, a plurality of LED units are disposed in the LED lamp, and the LED units can project light in multiple directions. However, the design still causes the light projected by the LED units to be too concentrated at several predetermined angles, resulting in uneven illumination brightness.

Therefore, how to make the light projected by the LED lamp cover all angles and have a uniform light emitting effect is the technical subject to be solved by the present application.

SUMMERY OF THE UTILITY MODEL

Based on solving the technical problem, the present application mainly aims to provide an LED lamp with a three-dimensional illumination angle.

The application relates to an LED lamps and lanterns includes:

a shell body, which is provided with an accommodating space and an opening communicated with the accommodating space;

a core column, which is configured in the containing space and one end of which is combined with the opening to seal the containing space, and the other end of which is provided with a first conductive bracket and a second conductive bracket;

an LED wick, comprising:

a spiral circuit board having a first surface and a second surface opposite to each other, comprising:

a plurality of rings, each connected to each other and having a size gradually increasing from the center of the spiral outward;

the first electric contact is arranged at one end of the spiral circuit board close to the spiral center; and

the second electrical contact is arranged at one end of the spiral circuit board far away from the spiral center; and

a plurality of LED units arranged over the first surface;

the first electrical contact is electrically connected with one end of the first conductive support, and the second electrical contact is electrically connected with one end of the second conductive support, so that the spiral circuit board can extend in a spiral manner along the axial direction.

In the above preferred embodiment, the light projection directions of the LED units are substantially parallel to the axial direction.

In the above preferred embodiment, the light projection directions of the LED units are enlarged to be perpendicular to the axial direction.

In the above preferred embodiment, it further comprises a lamp cap, which is combined with the housing and covers the opening.

In the above preferred embodiment, the lamp cap includes a metal screw shell and an external contact connected to the metal screw shell.

In the above preferred embodiment, the lamp further includes a driving power module disposed in the lamp head and electrically connected to the first conductive bracket and the second conductive bracket.

In the above preferred embodiment, the power module further includes two conductive traces, one end of each conductive trace is electrically connected to the driving power module, and the other end of each conductive trace is electrically connected to the metal threaded shell and the external contact.

In the above preferred embodiment, the spiral circuit board is a flexible printed circuit board.

The LED lamp has the advantages that the LED lamp core with the three-dimensional vortex structure can be used for enabling light projected by the LED lamp to cover all angles, and meanwhile, an even and three-dimensional light emitting effect is generated.

Other features and embodiments of the present application will be described in detail below with reference to the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1A is a schematic view of a manufacturing process of a first embodiment of an LED wick according to the present application;

FIG. 1B is a top view of a first embodiment of an LED wick according to the present application;

FIG. 2A is a schematic view of a manufacturing process of a second embodiment of an LED wick according to the present application;

FIG. 2B is a top view of a second embodiment of an LED wick according to the present application;

FIG. 3 is a cross-sectional view of a first embodiment of an LED lamp of the present application; and

FIG. 4 is a cross-sectional view of a second embodiment of an LED lamp according to the present application.

Description of the symbols

First surface of Axis F1

F2 second surface L ray

R-ring 1LED lamp

100 circuit board 10, 20LED lamp wick

11. 21' helical circuit board 12LED unit

111. 211 first

electrical contact

112, 212 second electrical contact

21 elongated circuit board 30 core column

31 first

conductive support

311, 321 end point

32 second conductive support 40 drive power supply module

41. 42 conductive circuit 50 lamp cap

51 metal screw housing 52 external contact

60 case 601 opening

61 accommodating space

Detailed Description

The positional relationship described in the following embodiments includes: the top, bottom, left and right, unless otherwise indicated, are based on the orientation of the elements in the drawings.

Referring to fig. 1A, fig. 1A is a schematic view illustrating a manufacturing process of a first embodiment of an LED lamp wick according to the present application, and for convenience of description, two axial directions orthogonal to each other in the drawing are defined as an X axis and a Y axis in the present application. The reference plane formed by the X axis and the Y axis is referred to as a horizontal direction.

First, a circuit board 100 is provided (as shown in (i) of fig. 1A). In fig. 1A (i), the Circuit board 100 may be a Flexible Printed Circuit (FPC). Next, the circuit board 100 is cut to form a spiral circuit board 11 (as shown in (ii) of fig. 1A). In fig. 1A (ii), the spiral circuit board 11 has a first surface F1 and a second surface F2 opposite to each other, and has a plurality of loops R, a first electrical contact 111 and a second electrical contact 112. The loops R are connected to each other and gradually increase in size from the center of the spiral, the first electrical contact 111 is disposed at one end of the spiral circuit board 11 close to the center of the spiral, and the second electrical contact 112 is disposed at one end of the spiral circuit board 11 far from the center of the spiral, that is, the end of the outer loop R of the spiral circuit board 11. Before the circuit board 100 is cut or after the spiral circuit board 11 is cut, a circuit (not shown) is printed on the spiral circuit board 11 and electrically connected to the first electrical contact 111 and the second electrical contact 112. In the embodiment, the first electrical contact 111 and the second electrical contact 112 are openings penetrating through the first surface F1 and the second surface F2, so that the spiral circuit board 11 can be conveniently combined and assembled with a supporting component for supplying power.

Next, a plurality of LED units 12 are arranged on the first surface F1 to form the LED wick 10 (as shown in (iii) of fig. 1A). In fig. 1A (iii), a plurality of LED units 12 may be attached to the first Surface F1 of the spiral circuit board 11 by Surface Mount Technology (SMT) so as to be electrically connected to the printed circuit on the spiral circuit board 11. The first surface F1 and the second surface F2 are parallel to the horizontal direction. Although the embodiment of adhering the LED units 12 to the first surface F1 is only proposed in the present embodiment, in practical applications, the LED units 12 may be adhered to the second surface F2 of the spiral circuit board 11, or a part of the LED units 12 may be adhered to the first surface F1; a portion of the LED unit 12 is adhered to the second surface F2, and the embodiment of the present invention is not limited thereto.

Referring to fig. 1B, fig. 1B is a top view of a first embodiment of an LED wick according to the present application. In fig. 1B, the LED units 12 of the LED wick 10 are disposed on the first surface F1 of the spiral circuit board 11, and the first surface F1 and the second surface F2 are parallel to the horizontal direction. The loops R are connected to each other and gradually increase in size from the center of the spiral outward. The first electrical contact 111 is located at one end of the spiral circuit board 11 near the center of the spiral; the second electrical contact 112 is disposed at an end of the spiral circuit board 11 away from the center of the spiral. In addition, the cut shape of the ring R of the spiral circuit board 11 can be made according to the use place of the lamp or the requirement of the consumer. In this embodiment, the ring R may be circular (as shown in (i) of fig. 1B); alternatively, the shape of the ring R may be triangular (as shown in (ii) of fig. 1B); still alternatively, the shape of the ring R may be square (as shown in (iii) of fig. 1B). In other possible embodiments, the shape of the ring R may be any polygon.

Referring to fig. 2A, fig. 2A is a schematic view illustrating a manufacturing process of a second embodiment of an LED wick according to the present application. Similarly, for convenience of description, two mutually orthogonal axial directions are defined as an X axis and a Y axis in the drawings, and a reference plane formed by the axes is referred to as a horizontal direction.

First, a long strip-shaped circuit board 21 is provided (as shown in (i) of fig. 2A). In fig. 2A (i), the strip-shaped circuit board 21 has a first surface F1 and a second surface F2 opposite to each other, and the first surface F1 and the second surface F2 are still parallel to the horizontal direction. On the other hand, the opposite ends of the strip-shaped circuit board 21 are respectively provided with a first electrical contact 211 and a second electrical contact 212. The strip circuit board 21 is a flexible printed circuit board and has a printed circuit (not shown) as a circuit, and the printed circuit is electrically connected to the first electrical contact 111 and the second electrical contact 112.

Next, a plurality of LED units are arranged over the first surface F1 (as shown in (ii) of fig. 2A). In fig. 2A (ii), a plurality of LED units 12 may also be adhered to the first surface F1 of the strip-shaped circuit board 21 by surface mount technology, so as to be electrically connected to the printed circuit on the strip-shaped circuit board 21. Although the embodiment of adhering the LED units 12 to the first surface F1 is only proposed in the present embodiment, in practical applications, the LED units 12 may be adhered to the second surface F2 of the strip-shaped circuit board 21, or a part of the LED units 12 may be adhered to the first surface F1; a portion of the LED unit 12 is adhered to the second surface F2, and the embodiment of the present invention is not limited thereto.

Finally, the strip-shaped circuit board 21 is bent or bended to form a spiral circuit board 21' having a plurality of loops R to form the LED lamp 20 (as shown in (iii) of fig. 2A). In fig. 2A (iii), the loops R of the spiral circuit board 21' are connected to each other and gradually increase from the center of the spiral to the outside, and the first electrical contact 211 is located at one end of the spiral circuit board 11 near the center of the spiral; the second electrical contact 212 is located at an end of the spiral circuit board 11 away from the center of the spiral, i.e. the end of the outer ring R of the spiral circuit board 21'. At this time, the first surface F1 and the second surface F2 of the spiral circuit board 21' are perpendicular to the horizontal direction, and the irradiation direction of each LED unit 12 is radiated outward from the spiral center.

Referring to fig. 2B, fig. 2B is a top view of a second embodiment of an LED wick according to the present application. In fig. 2B, the LED units 12 of the LED wick 20 are disposed on the first surface F1 of the spiral circuit board 11, and the first surface F1 and the second surface F2 are perpendicular to the horizontal direction. The loops R are connected to each other and gradually increase in size from the center of the spiral outward. The first electrical contact 211 is located at one end of the spiral circuit board 21' near the center of the spiral; the second electrical contact 212 is located at an end of the spiral circuit board 21' away from the center of the spiral. In addition, the bending or bending shape of the ring R of the spiral circuit board 21' can be made according to the application place of the lamp or the requirement of the consumer. In the present embodiment, a circular loop R may be formed in a curved manner (as shown in (i) of fig. 2B); alternatively, the triangular loop R may be formed in a bent manner (as shown in (ii) of fig. 2B); alternatively, the square loop R may be formed in a bent manner (as shown in (iii) of fig. 2B). In other possible embodiments, the ring R may be formed into any polygonal shape by bending.

Referring to fig. 1A and fig. 3 together, fig. 3 is a cross-sectional view of a first embodiment of an LED lamp according to the present application. In fig. 3, the LED lamp 1 may be a bulb, which includes: the LED lamp comprises an LED lamp core 10, a core column 30, a driving power supply module 40, a lamp cap 50 and a shell 60. The housing 60 has an accommodating space 61 and an opening 601 communicating with the accommodating space 61. The core column 30 is disposed in the accommodating space 61, and one end of the core column 30 is combined with the opening 601 to close the accommodating space 61; the opposite end is provided with a first conductive bracket 31 and a second conductive bracket 32. The end point 311 of the first conductive support 31 penetrates through the first electrical contact 111 of the spiral circuit board 11 and is electrically connected, so that one end of the spiral circuit board 11 located at the center of the spiral is fixedly connected to the first conductive support 31; the end 321 of the second conductive support 32 also penetrates through the second electrical contact 112 of the spiral circuit board 11 and is electrically connected to the second conductive support 32, so that the end of the spiral circuit board 11 away from the spiral center is fixedly connected to the second conductive support 32, and thus the first conductive support 31 and the second conductive support 32 can stretch the spiral circuit board 11, so that the spiral circuit board 11 can extend in a spiral manner along the axial direction a, and the loops R of different sizes are separated to form a three-dimensional vortex structure. In some possible embodiments, when the LED lamp 1 is assembled, the air in the accommodating space 61 may be extracted by using an exhaust pipe in the stem 30, or an inert gas, such as: the low-viscosity high-thermal-conductivity gas is filled in the accommodating space 61, so that the heat dissipation effect of the LED lamp core 10 is improved.

The lamp cap 50 is combined with the outer surface of the case 60 from the other side with respect to the stem 30 and covers the opening 601. The base 50 includes a metal screw housing 51 and an external contact 52 connected to the metal screw housing 51. The driving power module 40 is disposed in the lamp head 50 and electrically connected to the first conductive bracket 31 and the second conductive bracket 32. On the other hand, the driving power module 40 can be electrically connected to the metal screw housing 51 and the external contact 52 through two

conductive traces

41 and 42, respectively. Although the embodiment only proposes the driving power module 40 disposed in the lamp cap 50 and connected to the external power source through the lamp cap 50, in practical applications, the driving power module 40 may be disposed in the accommodating space 61, or the lamp cap 50 may not be disposed, but directly connected to the external power source through the two

conductive traces

41 and 42, without being limited to the embodiment proposed in this embodiment.

Referring to fig. 3, when the lamp head 50 of the LED lamp 1 is connected to an external power source, for example: when the commercial power is connected, the driving power module 40 converts the received ac power into dc power, and provides the dc power to the LED lamp core 10 through the first conductive bracket 31 and the second conductive bracket 32, so that the LED unit 12 emits light. In the present embodiment, since the original first surface F1 and the original second surface F2 of the LED wick 10 are parallel to the horizontal direction, after the spiral circuit board 11 is stretched, the layers of loops R with different sizes on the spiral circuit board 11 are separated along the axial direction a to form a three-dimensional vortex structure, and the LED units 12 disposed on the layers of loops R project light L toward a direction substantially parallel to the axial direction a. On the other hand, the three-dimensional vortex structure formed by the spiral circuit board 11 allows the range of light projection of the LED unit 12 to cover all angles, so that the LED lamp 1 generates a three-dimensional and uniform light emitting effect.

Referring to fig. 2A and fig. 4 together, fig. 4 is a cross-sectional view of a second embodiment of an LED lamp according to the present application. In fig. 4, the stem 30, the driving power module 40, the lamp head 50 and the housing 60 of the LED lamp 1 are the same as those in fig. 3, and are not described herein again. The difference is that, since the original first surface F1 and the second surface F2 of the LED wick 20 are perpendicular to the horizontal direction, after the spiral circuit board 21' is stretched, the layers of loops R with different sizes on the spiral circuit board 11 are separated along the axial direction a to form a three-dimensional vortex structure, and the LED units 12 disposed on the layers of loops R project light L in a direction substantially perpendicular to the axial direction a. On the other hand, the three-dimensional vortex structure formed by the spiral circuit board 21' allows the range of light projection of the LED unit 12 to cover various angles, so that the LED lamp 1 generates a three-dimensional and uniform light emitting effect.

Compared with the prior art, the LED lamp provided by the application can cover all angles through the LED lamp wick with the three-dimensional vortex structure, so that the LED lamp can generate a three-dimensional and uniform light-emitting effect.

The above-described embodiments and/or implementations are only for illustrating the preferred embodiments and/or implementations of the technology of the present application, and are not intended to limit the implementations of the technology of the present application in any way, and those skilled in the art can make modifications or changes to other equivalent embodiments without departing from the scope of the technology disclosed in the present application, but should be construed as technology or implementations substantially the same as the present application.

Claims

1. An LED lamp, comprising:

a shell, which is provided with an accommodating space and an opening communicated with the accommodating space;

an LED wick, comprising:

a plurality of rings, each of which is connected to each other and is gradually enlarged from the center of the spiral;

the first electric contact is arranged at one end of the spiral circuit board close to the center of the spiral; and

a plurality of LED units arranged over the first surface;

the first electrical contact is electrically connected with one end of the first conductive support, and the second electrical contact is electrically connected with one end of the second conductive support, so that the spiral circuit board can extend in a spiral manner along an axial direction.

2. The LED lamp of claim 1, wherein the light projection direction of the LED units is substantially parallel to the axial direction.

3. The LED lamp of claim 1, wherein the light projection direction of the LED units is substantially perpendicular to the axial direction.

4. The LED light fixture of claim 1 further comprising a base coupled to the housing and covering the opening.

5. The LED lamp of claim 4, wherein the lamp cap comprises a metal threaded shell and an external contact connected to the metal threaded shell.

6. The LED lamp of claim 5, further comprising a driving power module disposed in the lamp head and electrically connected to the first conductive bracket and the second conductive bracket.

7. The LED lamp of claim 6, further comprising at least two conductive traces, wherein one end of each of the at least two conductive traces is electrically connected to the driving power module, and the other end of each of the at least two conductive traces is electrically connected to the metal threaded shell and the external contact.

8. The LED lamp of claim 1, wherein the spiral circuit board is a flexible printed circuit board.