KR20220023600A - LED lighting system - Google Patents

Abstract

Provided is an LED lighting system, which includes: a plurality of LED modules each including a circuit board and an LED fixed on the circuit board; a connection board for circuitly connecting the circuit board of the plurality of LED modules; and a plurality of optical members respectively fastened to the plurality of LED modules. Each of the optical members is respectively fastened to the circuit board and the connection board to block a relative movement between the circuit board and the connection board.

Description

LED lighting system {LED lighting system}

The present invention relates to an LED lighting system, and more particularly, to an LED lighting system installed on a ceiling structure such as a T-bar.

The LED lighting system used for indoor lighting can be installed in various ways. For example, a method of installing a circuit board to which an LED (light emitting diode) is attached is used on a T-bar, which is a ceiling structure. . The T-bar includes a vertical section and a horizontal section, and a circuit board to which an LED is attached may be fixed to a lower surface of the horizontal section of the T-bar.

In general, the tee bar is arranged to form a grid, and the circuit board is installed to have a desired shape on some or all of the lower surface of the horizontal section of the tee bar. A plurality of circuit boards on which LEDs are installed are connected in a circuit for a desired shape of LED arrangement to form a desired arrangement. At this time, micro-relative behavior between circuit boards connected to each other occurs due to repeated contraction and expansion of circuit boards due to heat generated during LED operation. This happens and as this is repeated, an insulating film is formed, causing a problem that electricity cannot pass through.

In order to solve such a problem due to the fine behavior of the circuit board, a method of fixing the circuit boards to each other through screws or tapes is used. This method has problems in terms of a complicated assembly process and spatial arrangement because a separate member such as a screw or tape must be added.

US Registered Patent Publication US10,371,332 (2019.08.06.)

An object of the present invention is to provide an LED lighting system capable of preventing micro-movements between circuit boards by firmly connecting a connection circuit board on which an LED is installed without a separate fastening member such as screws or tapes.

An LED lighting system according to an embodiment of the present invention includes a plurality of LED modules each including a circuit board and an LED fixed on the circuit board, a connection board for circuitly connecting the circuit boards of the plurality of LED modules, and and a plurality of optical members each fastened to the plurality of LED modules. Each of the optical members is respectively fastened to the circuit board and the connection board to block a relative movement between the circuit board and the connection board.

The optical member includes first and second fastening pins press-fitted into a first fastening hole formed in the circuit board and a second fastening hole formed in the connecting board, respectively, to block the relative behavior of the circuit board and the connecting board. can be provided

The first and second fastening pins may each include an insertion portion that is at least partially inserted into the first and second fastening holes, respectively, and one or more press-in protrusions that protrude outward in a radial direction from an outer circumferential surface of the insertion portion.

The one or more press-in protrusions may be provided in plurality, and the plurality of press-in protrusions may be arranged at equal intervals along the circumferential direction on the outer circumferential surface of the insertion part.

The optical member may be configured to be fixed to the tee bar, which is a ceiling structure, and the optical member may be configured to fix the circuit board in a state in close contact with the horizontal section of the tee bar. The optical member is configured to block the relative motion of the circuit board and the connection board in a direction parallel to the extension direction of the horizontal section by press-fitting the first and second fastening pins into the first and second fastening holes. can be configured.

The optical member may have a fastening clip fixedly fastened to the horizontal section.

The circuit board and the connection board may be fastened to each other by a notch and a protrusion to limit a relative motion.

The circuit board and the connection board may be configured to be in close contact with a horizontal section of the tee bar, which is a ceiling structure, and the optical member is to be fastened to the tee bar by pressing the circuit board and the connection board to be fixed to the tee bar. It can be configured to

The circuit board may be configured to be assembled to the connection board in close contact with the tee in a direction perpendicular to the horizontal section of the tee, and the optical member may press the circuit board and the tee bar to press the horizontal section of the tee. It may be configured to be assembled in a direction perpendicular to the section.

The LED lighting system according to another embodiment of the present invention may further include a master board for electrical connection to an external power source. The master board may be configured to be fixed to the tea bar by the optical member while being electrically connected to the circuit board.

The master board may include a power line, and the power line may be configured to be discharged to the outside through a hole formed in the optical member.

An LED lighting system according to another embodiment of the present invention includes a circuit board and a plurality of LED modules each including an LED fixed on the circuit board, and a connection board for circuitly connecting the circuit boards of the plurality of LED modules includes The circuit board and the connection board may be fastened to each other by a notch and a protrusion to limit a relative motion.

The protrusion may be configured to be press-fitted into the notch through a shape change.

The protrusion may be provided with a pair of press-fitting legs disposed to face each other in a spaced apart state and configured to be changeable in shape in an approaching direction.

Each of the notch and the protrusion may be provided as a pair, and the pair of protrusions may each have a recessed groove. The LED lighting system may further include a press-in member including a pair of press-in protrusions respectively press-fitted into a pair of press-in spaces formed by the recessed groove and the notch.

The press-fitting member may further include a connecting portion connecting the pair of press-fitting protrusions. The connection part may be disposed at a rear side of the connection board, and the connection protrusion may be formed to protrude from the connection part to a front side of the connection board.

The notch may be formed in the circuit board, and the protrusion and the recessed groove may be formed in the connection board. The press-in protrusion may include an inclined surface formed to face a portion of the circuit board defining the notch.

The press-in protrusion may be formed of a material softer than that of the circuit board and the connection board.

According to another embodiment of the present invention, the protrusion may be provided with a pressing protrusion configured to protrude from the outer circumferential surface to be in close contact with the surface forming the notch.

According to the present invention, it is possible to solve the problem of the relative behavior of the circuit board and the connection board through a structure that is simple and easy to assemble by connecting the circuit board and the connection board of the LED module to each other using an optical member without a separate fixing member. .

In addition, according to another embodiment of the present invention, by connecting the circuit board and the connection board to each other through protrusions and notches, it is possible to block the relative behavior of the circuit board and the connection board through a simple structure.

1 is a view showing a state in which an LED lighting system according to an embodiment of the present invention is installed on a TV as a ceiling structure.
2 is a partially enlarged perspective view of an LED lighting system according to an embodiment of the present invention.
3 is a view showing an arrangement state of a circuit board and a connection board of the LED lighting system according to an embodiment of the present invention.
4 is a cross-sectional view taken along line IV-IV of FIG. 3 .
5 is a cross-sectional view taken along line V-V of FIG. 3 .
6 is an exploded perspective view of an LED module, an optical member, and a connection board of the LED lighting system according to an embodiment of the present invention.
7 illustrates a fastening pin provided in an optical member of an LED lighting system according to an embodiment of the present invention.
8 is a plan view illustrating a part of an LED lighting system according to another embodiment of the present invention.
9 is a plan view illustrating a part of an LED lighting system according to another embodiment of the present invention.
10 is a perspective view illustrating a master board of an LED lighting system according to an embodiment of the present invention.
11 is a view showing the installation of the master board of the LED lighting system according to an embodiment of the present invention.
12 is a view for explaining a process of assembling the LED lighting system to the tea bar according to an embodiment of the present invention.
13 is a perspective view illustrating a part of an LED lighting system according to another embodiment of the present invention.
14 is an exploded perspective view of the LED lighting system of FIG. 13 .

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 exemplarily illustrates a state in which an LED lighting system according to an embodiment of the present invention is installed on a ceiling structure. 1 illustrates a T-bar 100 installed in a grid form and a ceiling tile 200 mounted on the T-bar 100 . The shape and arrangement of the tea bar 100 and the ceiling tile 200 are not limited to those shown and may be variously changed. Referring to FIG. 1 , the LED lighting system 1 according to an embodiment of the present invention may be fixed to a tea bar 100 , which is a ceiling structure. Since the LED lighting system 1 is fixed to the tea bar 100 , it may be installed on the ceiling of a building without a separate fixing structure. As shown in FIG. 4 , the tee bar 100 may consist of a vertical section 101 and a horizontal section 102 , wherein the vertical section 101 extends vertically downward from the ceiling and the horizontal section 102 includes a vertical section. By extending in the transverse direction on both sides from the lower end of 101, the tee bar 100 may have a T-shaped cross-sectional shape. The LED lighting system 1 according to an embodiment of the present invention may be installed to be in close contact with the lower surface of the horizontal section 102 .

The LED lighting system according to an embodiment of the present invention includes a plurality of LED modules 10 , a connection board 20 for circuitly connecting the LED modules 10 , and a plurality of optical members 30 . The plurality of LED modules 10 are circuitly connected by a connection board 20 .

Each LED module 10 includes a circuit board 11 and one or more LEDs 12 . The circuit board 11 may be formed to have a long band shape so as to be in close contact with the lower surface of the horizontal section 102 of the tee bar 100 . The circuit board 11 may be formed of a printed circuit board having a predetermined conductive pattern, and the LED 12 may be fixed on the circuit board 11 . Although not shown in the drawings, circuit elements for driving and controlling the LED 12 may be installed on the circuit board 11 .

The connection board 20 is configured to circuitly connect the adjacently disposed LED modules 10 . That is, the connection board 20 acts as a connector (board-to-board connector) that connects the circuit board 11 of the LED module 10 disposed adjacent to each other in a circuit. The connection board 20 may be disposed adjacent to the circuit board 11 of the plurality of LED modules 10 to circuitly connect the circuit board 11 . For example, the circuit board 11 and the connection board 20 of the LED module 10 may be circuitly connected to each other through an electrical contact member. Specifically, the circuit board 11 may include a pin connector 111 and a socket connector 112 each formed of a conductive metal, and the connection board 20 corresponds to them. A socket connector 201 and a pin connector 202 each formed of a conductive metal may be provided. A circuit/electrical connection between the circuit board 11 and the connection board 20 is made by contact between the pin connector and the socket connector. Referring to FIGS. 2 and 3 , the connection board 20 may be formed to have a substantially cross shape having four connection parts, and the circuit board 11 of the four LED modules 10 is connected to the connection board 20 . Each of the four connectors can be connected. The shape of the connection board 20 and the LED module 10 connected thereto may be appropriately changed according to a required arrangement of the LED lighting system.

The circuit board 11 and the connection board 20 may be fastened to each other by a notch and a protrusion in order to limit their relative behavior. Referring to FIG. 6 , the connection board 20 may have a dove tail-shaped protrusion 205 , and the circuit board 11 has a fastening groove 115 into which the protrusion 205 is inserted. can do. The fastening groove 115 may have notches 116 on both sides, and the protrusion 205 may have protrusions 206 inserted into the notch 116 on both sides.

The optical member 30 is fastened to the LED module 10 so that the light emitted from the LED 12 passes, and the light passing therethrough may be configured to have a desired optical characteristic. As a specific example, the optical member 30 may be formed to have functions such as light diffusion, light collection, and light distribution. The optical member 30 may be fastened to the tea bar 100 to fix the circuit board 11 to the tea bar 100 . For example, as shown in FIGS. 3 and 4 , the optical member 30 has a fastening clip 31 configured to be fastened to the horizontal section 102 of the tee bar 100 , and the optical member ( 30 may be fixedly fastened to the horizontal section 102 of the tee bar 100 through the fastening clip 31 in a state of pressing the circuit board 11 . The fastening clip 31 is provided at both ends of the optical member 30 and may be configured in the form of a clip capable of being fastened to the end of the tea bar 100 .

The optical member 30 is respectively fastened to the circuit board 11 and the connection board 20 to block the relative behavior of the circuit board 11 and the connection board 20 . That is, the LED lighting system according to the embodiment of the present invention blocks the relative behavior of the circuit board 11 and the connection board 20 by using the optical member 30 without a separate fixing member. The optical member 30 is configured to fix the circuit board 11 in a state in close contact with the horizontal section 102 of the tea bar 100, and the circuit board ( 11) and the connection board 20 is configured to block the relative behavior. To this end, the circuit board 11 and the connection board 20 each have a first fastening hole 113 and a second fastening hole 203 , and the optical member 30 is inserted into the first fastening hole 113 . A first fastening pin 32 to be used and a second fastening pin 33 inserted into the second fastening hole 203 may be provided. In this case, the first and second fastening pins 32 and 33 may be press-fitted into the first and second fastening holes 113 and 203 , respectively.

Referring to FIG. 7 , the first and second fastening pins 32 and 33 may include a body portion 331 , an insertion portion 332 , and one or more press-in protrusions 333 , respectively. The insertion part 332 extends from the body part 331 and is inserted into the fastening holes 113 and 203 , and the press-in protrusion 333 is formed to protrude radially outward from the outer circumferential surface of the insertion part 332 . 7, the press-in protrusion 333 may extend along the longitudinal direction of the insertion part 332, the press-in protrusion 333 may be provided in plurality, and the plurality of press-in protrusions 333 are circumferentially They may be arranged at equal intervals along the direction. The insertion part 332 having the press-in protrusion 333 is press-fitted into the fastening holes 113 and 203, so that the optical member 30 can be fixedly fastened to the circuit board 11 and the connection board 20, respectively. Thereby, the relative movement of the circuit board 11 and the connection board 20 can be blocked.

8 is a view showing a part of an LED lighting system according to another embodiment of the present invention, and only a part of the circuit board 811 and the connection board 820 are shown in FIG. 8 . The circuit board 811 and the connection board 820 are fastened to each other by the notch 311 and the protrusion 411 to limit the relative behavior. At this time, the protrusion 411 is configured to be press-fitted into the notch 311 through a shape change. For example, the protrusion 411 is provided with a pair of press-in legs 4111 and 4112 that are disposed to face each other in a spaced apart state and are formed to be changeable in shape in an approaching direction, and the press-in legs 4111 and 4112 are It is press-fitted into the notch 311 while being deformed in a direction approaching each other. In FIG. 8 , the press-in legs 4111 and 4112 before the press-in are shown by a dotted line, and the press-in legs 4111 and 4112 in a shape-deformed state after the press-in are shown by a solid line. A recessed space 413 is formed between the spaced apart press-in legs 4111 and 4112 , and the presence of the recessed space 413 may deform the press-in legs 4111 and 4112 in a direction in which they approach each other. The relative movement of the circuit board 811 and the connection board 820 may be blocked without a separate coupling member by press-fitting due to the deformation of the press-in legs 4111 and 4112 .

Meanwhile, according to an embodiment of the present invention, as shown in FIG. 9 , a pressing protrusion 4115 configured to be in close contact with the surface forming the notch 311 may be provided on the outer peripheral surface of the protrusion 411 . As shown in FIG. 9 , a pair of pressing protrusions 4115 may be provided on the outer peripheral surfaces facing each other of the protrusion 411 , and when the protrusion 411 is inserted into the notch 311 , the pressing protrusion 4115 . As the pressure is applied, a firm fastening can be achieved.

10 and 11 , the LED lighting system according to an embodiment of the present invention may include a master board 40 for electrical connection with an external power supply (not shown). The master board 40 may be configured in the form of a plate that can be in close contact with the tea bar 100 , and may include a connector 41 for electrical connection with the circuit board 11 . The connector 41 may include a socket connector 411 and a pin connector 412 for electrical connection to the circuit board 11 . Electrical connection may be made by bringing the pin connector 111 and the socket connector 112 of the circuit board 11 into contact with the socket connector 412 and the pin connector 411 of the master board 40 . Meanwhile, the master board 40 may include positive and negative power lines 43 and 44 for electrical connection with the power supply. Power applied to the power lines 43 and 44 may be transmitted to the circuit board 11 through the connectors 411 and 412 through the conductive pattern (not shown) of the master board 40 . The circuit board 11 and the master board 40 may be fixed to the tea bar 100 by the optical member 30 , and the power lines 43 and 44 of the master board 40 are formed in the optical member 30 . It may be discharged to the outside through the hole 39 to be connected to a power supply.

An installation process of the LED lighting system according to an embodiment of the present invention will be described with reference to FIG. 12 . The additional circuit board 11 may be connected to the connection board 20 in a state in which the circuit board 11 and the connection board 20 are assembled to a part of the tea bar 100 by the optical module 30 . For example, referring to FIG. 12A , the additional circuit board 11 may be connected to the connection board 20 to form a direction perpendicular to the assembled circuit board 11 . In this case, the additional circuit board 11 is configured to be connected to the connection board 20 in a direction (direction indicated by an arrow) perpendicular to the lower surface of the tee bar 100 . To this end, the circuit board 11 and the connection board 20 may be formed to be assembled in a vertical direction. Specifically, the notch 116 of the circuit board 11 and the protrusion 205 of the connection board 20 are It may be formed so that assembly in a vertical direction is possible, and the connector of the connection board 20 and the connector of the circuit board 11 may also be formed so that assembly in the vertical direction is possible. Then, as shown in Fig. 12 (b), the optical member 30 is moved in the vertical direction (arrow direction in Fig. 12 (b)) to press the connection board 20 and the circuit board 11 It may be assembled to the rotor tea bar 100 . To this end, the optical member 30 may also be formed to be assembled in a direction perpendicular to the installation surface of the tea bar 100 . Accordingly, the circuit board 11 may be assembled to the tea bar 100 as shown in FIG. 12( c ). The LED lighting system according to an embodiment of the present invention is configured such that the circuit board, the connection board and the optical member can be assembled in a direction perpendicular to the installation surface of the tea bar 100 , so that it is installed in a desired shape on the installation surface of the tea bar 100 . In particular, the plurality of circuit boards can be easily assembled to form a closed arrangement by the vertical assembly structure.

13 and 14 show the assembled and disassembled states of the circuit board 911 and the connection board 920 of the LED lighting system according to another embodiment of the present invention, respectively. The circuit board 911 includes a pair of notches 312 , and the connection board 920 includes a pair of protrusions 411 respectively inserted into the pair of notches 312 . Each protrusion 411 has a depression groove 413 formed by being depressed from the outer circumferential surface, and the press-in member 500 is provided with a pair of press-in protrusions 502 respectively inserted into the pair of depression grooves 413. . At this time, the press-in protrusion 502 is connected to each other by the connecting part 501 , the connecting part 501 is disposed at the rear of the connecting board 920 in the assembled state, and the press-in protrusion 502 is at both ends of the connecting part 501 . It is formed to protrude forward of the connection board 920 . The press-in protrusion 502 may be inserted into the press-in space formed by the recessed groove 413 and the notch 312 of the circuit board 911 . At this time, the press-in protrusion 502 has an inclined surface 504 formed in a portion facing the portion forming the notch 312 of the circuit board 911 defining the press-in space. Since the inclined surface 504 is provided, the press-fitting of the press-in protrusion 502 is facilitated. In addition, the press-in protrusion 502 may be formed of a material softer than the material of the circuit board 911 and the connection board 920, for example, a synthetic resin material, whereby the shape of the press-in protrusion 502 is deformed during the press-in process. A firm engagement that blocks relative movement can be achieved.

Although the embodiment of the present invention has been described above, the scope of the present invention is not limited thereto, and it is easily changed from the embodiment of the present invention by a person skilled in the art to which the present invention belongs and recognized as equivalent. including all changes and modifications to the scope of

100: Tiva
200: ceiling tiles
1: LED lighting system
10: LED module
11: circuit board
12: LED
20: connection board
30: optical member
116: notch
206: turn
113, 203: fastening holes
32, 33: fastening pins
331: body part
332: insert
333: press-fit projection
311: notch
411: protrusion
4111, 4112: press-fit leg
413: recessed groove
500: press-fit member
501: connection
502: press-in protrusion

Claims (19)

A plurality of LED modules each including a circuit board and an LED fixed on the circuit board;
A connection board for circuitly connecting the circuit boards of the plurality of LED modules, and
A plurality of optical members each fastened to the plurality of LED modules
includes,
Each of the optical members is fastened to the circuit board and the connection board, respectively, and is configured to block the relative behavior of the circuit board and the connection board
LED lighting system. In claim 1,
The optical member includes first and second fastening pins press-fitted into a first fastening hole formed in the circuit board and a second fastening hole formed in the connecting board, respectively, to block the relative behavior of the circuit board and the connecting board. provided
LED lighting system. In claim 2,
The first and second fastening pins are
Insertion portions that are respectively at least partially inserted into the first and second fastening holes, and
One or more press-in protrusions protruding radially outward from the outer circumferential surface of the insertion part
each containing
LED lighting system. In claim 3,
The one or more press-fitting projections are provided in plurality,
The plurality of press-fitting projections are arranged at equal intervals along the circumferential direction on the outer peripheral surface of the insertion part
LED lighting system. In claim 2,
The optical member is configured to be fixed to the T-bar, which is a ceiling structure,
The optical member is configured to fix the circuit board in a state in close contact with the horizontal section of the tee,
The optical member is configured to block the relative motion of the circuit board and the connection board along a direction parallel to the extension direction of the horizontal section by press-fitting the first and second fastening pins into the first and second fastening holes. composed
LED lighting system. In claim 5,
The optical member is an LED lighting system having a fastening clip fixedly fastened to the horizontal section. 7. In any one of claims 1 to 6,
The circuit board and the connection board are fastened to each other by a notch and a protrusion to limit a relative motion. In claim 1,
The circuit board and the connection board are configured to be in close contact with the horizontal section of the T-bar, which is a ceiling structure,
The optical member is configured to be fastened to the tea bar in a state of being fixed to the tea bar by pressing the circuit board and the connection board
LED lighting system. In claim 8,
The circuit board is configured to be assembled to the connection board in close contact with the tee bar in a direction perpendicular to the horizontal section of the tee bar,
wherein the optical member is configured to be assembled in a direction perpendicular to the horizontal section of the tee bar to press the circuit board and the connecting board.
LED lighting system. In claim 8,
Further comprising a master board for electrical connection to an external power source,
The master board is configured to be fixed to the tea bar by the optical member while being electrically connected to the circuit board
lighting system. In claim 10,
The master board includes a power line,
The power line is configured to be discharged to the outside through a hole formed in the optical member
lighting system. A plurality of LED modules each including a circuit board and an LED fixed on the circuit board, and
A connection board for circuitly connecting the circuit boards of the plurality of LED modules
including,
The circuit board and the connection board are fastened to each other by a notch and a protrusion to limit the relative behavior.
LED lighting system. In claim 12,
The protrusion is configured to be press-fitted into the notch through a shape change LED lighting system. In claim 13,
An LED lighting system having a pair of press-fitting legs in which the protrusions are disposed to face each other in a spaced apart state and are formed to be changeable in shape in an approaching direction. In claim 12,
The notch and the protrusion are provided as a pair, respectively,
The pair of protrusions each have a recessed groove,
Further comprising a press-in member including a pair of press-in projections respectively press-fitted into a pair of press-in spaces formed by the recessed groove and the notch
LED lighting system. In claim 15,
The press-in member further comprises a connecting portion for connecting the pair of press-fit projections,
The connection part is disposed at the rear of the connection board,
The connection protrusion is formed by protruding from the connection part to the front of the connection board.
LED lighting system. 17. In claim 16,
the notch is formed in the circuit board;
The protrusion and the recessed groove are formed in the connection board,
wherein the press-in protrusion includes an inclined surface formed to face the portion of the circuit board defining the notch.
LED lighting system. 17. In claim 16,
The press-fitting projection is an LED lighting system formed of a material softer than the material of the circuit board and the connection board. In claim 12,
The protrusion is protruded from the outer peripheral surface LED lighting system having a pressing protrusion configured to be in close contact with the surface forming the notch.

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