Strip lamp

Abstract

The invention provides a strip lamp which comprises a strip-shaped lamp holder, a strip-shaped circuit board arranged on the strip-shaped lamp holder, an LED chip arranged on the upper surface of the circuit board, a lampshade arranged in the light emitting direction of the LED chip, and one or more groups of paired conducting layers arranged on the upper surface of the circuit board. Each group of conductive layers are distributed on two sides of the LED chip and extend along the length direction, a conductive connecting piece is adaptively mounted on the strip-shaped lamp bracket, the conductive connecting piece is electrically connected with the conductive layers on two sides of the LED chip respectively, the circuit board can be cut along the length direction, and the circuit board is arranged in a way that a group of conductive layers are always kept at the end part of the circuit board before and after cutting. And the circuit board is positioned and assembled at at least one end of the conductive connecting piece. Both the strip-shaped lamp holder and the lampshade can be cut on an automation line according to the needed length, the strip-shaped lamp holder and the lampshade are assembled through the conductive connecting piece and then installed in the strip-shaped lamp holder, welding is not needed, the steps are simple, and the automatic production efficiency of strip lamps is improved.

Description

Technical Field

[0001] The invention relates to the field of lamps, and in particular to a strip light that can be produced automatically. Background Art

[0002] In the context of energy conservation and environmental protection, LED lamps are increasingly used in home and commercial lighting due to their high light output efficiency and good focusing performance. As people's quality of life continues to improve, their demand for home and commercial lighting is also increasing accordingly.

[0003] In the application of strip lights, people often choose strip lights of different lengths to meet the needs of adjusting the lighting space range, so it is necessary to customize strip lights of various lengths. However, for most strip lights on the market, once they are produced and assembled, the length of the lamp is fixed and cannot be adjusted. In production, for strip lights of different lengths, tooling or product accessories need to be adjusted separately, which cannot achieve consistent automated production and increases assembly costs.

[0004] Therefore, those skilled in the art are committed to developing a light strip that can be automatically produced to solve the above problems. Summary of the invention

[0005] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is that the existing strip lights cannot achieve consistent automated production when different lengths are required and the assembly cost is relatively high.

[0006] To achieve the above-mentioned purpose, the present invention provides a strip light, including a strip light frame, a strip circuit board is arranged on the strip light frame, an LED chip is arranged on the upper surface of the circuit board, and a lampshade is arranged in the light emitting direction of the LED chip, wherein a group or more pairs of conductive layers are arranged on the upper surface of the circuit board, each group of conductive layers is distributed on both sides of the LED chip and extends along the length direction, a conductive connector is adapted to be installed on the strip light frame, the conductive connector and the conductive layers on both sides of the LED chip are electrically connected respectively, the circuit board can be cut along the length direction, the circuit board is arranged to always maintain a group of conductive layers at the end of the circuit board before and after cutting, and the circuit board is positioned and assembled at at least one end of the conductive connector.

[0007] Furthermore, a conductive layer is provided in the middle part outside the end part of the circuit board, and the conductive layer in the middle part of the circuit board extends across at least two adjacent LED chips. The circuit board is configured to be able to cut between two adjacent LED chips and divide the conductive layer distributed on both sides of the two adjacent LED chips into two sections along the length direction.

[0008] Furthermore, the conductive connector includes a connecting frame connected to the end of the circuit board, the connecting frame extends along the length direction of the circuit board and includes a first slot arranged at the end, the connecting frame includes two connecting plates, each connecting plate is arranged corresponding to the conductive layer on each side of the circuit board, the circuit board is plugged into the first slot, and the connecting plate and the conductive layer are electrically connected.

[0009] Furthermore, the connecting frame is configured to be connected between the conductive layers at the ends of two adjacent circuit boards, and a first slot is provided at each end. The circuit boards at both ends of the connecting frame are respectively plugged and installed along the first slot, and the connecting piece is bridged over the conductive layers of the two circuit boards.

[0010] Optionally, one end of the connecting frame is connected to the circuit board, and the other end is connected to the wire, so that the circuit board and the wire are electrically connected to the connecting sheet respectively.

[0011] Furthermore, the connecting frame includes a second slot penetrating vertically, and the connecting piece is inserted into the connecting frame along the second slot.

[0012] Furthermore, a through slot is provided on the top of the connecting frame to expose the LED chip.

[0013] Furthermore, the connecting piece is provided with a positioning protrusion extending toward the bottom, and the circuit board is provided with a positioning hole corresponding to the positioning protrusion, so that the positioning protrusion and the positioning hole are plugged and matched when the connecting piece is installed, so that the circuit board is fixed relative to the connecting piece.

[0014] In another embodiment of the present invention, the conductive connector includes a connecting end cover arranged at the end of the strip lamp holder, the connecting end cover includes an outer shell and a contact spring, the outer shell is installed along the side wall of the strip lamp holder, the outer shell is connected to the wire, the wire passes through the end of the outer shell and is electrically connected to two contact springs, the contact spring extends from the outer shell to the inside of the lamp holder, the contact spring is arranged in two and includes a overlapping piece bent toward the circuit board, and the overlapping piece is elastically abutted against the conductive layer.

[0015] Furthermore, the connection end cover is formed by integrally injecting the outer shell, the contact spring and the wire, and the outer shell wraps and fixes the contact spring and the wire.

[0016] Technical effect:

[0017] The strip light holder and lampshade of the present invention can be cut to required length on an automated line. After the circuit board is cut along between the LED chips at the location of the conductive layer, it is assembled with the conductive connector and then installed in the strip light holder. No welding is required, the steps are simple, and the efficiency of automated production of strip lights is improved.

[0018] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the exploded structure of the end of an embodiment of the light bar of the present invention.

[0020] Figure 2 It is a structural schematic diagram of a strip light frame of the strip light of the present invention.

[0021] Figure 3 It is a structural schematic diagram of a connecting frame in the light bar of the present invention.

[0022] Figure 4 yes Figure 3 Schematic diagram of the exploded structure of an embodiment.

[0023] Figure 5 It is a schematic structural diagram of another embodiment of the conductive connecting member of the strip light of the present invention.

[0024] Figure 6 It is a schematic structural diagram of another embodiment of the conductive connector of the strip light of the present invention, wherein (a) is without a lampshade, and (b) is with a lampshade.

[0025] Wherein: 100 strip lamp holder, 101 side wall, 102 mounting groove, 200 conductive connector, 300 wire, 1 circuit board, 11 LED chip, 12 conductive layer, 13 positioning hole, 2 lampshade, 3 connecting frame, 31 first slot, 32 second slot, 33 through slot, 34 base, 35 vertical wall, 36 limit block, 4 connecting piece, 41 first folding piece, 42 second folding piece, 411 card interface, 421 positioning protrusion, 5 connecting end cover, 51 shell, 52 contact spring, 521 overlap piece, 53 cover plate, 54 mounting strip. DETAILED DESCRIPTION

[0026] like Figure 1The present invention shows a strip light provided by the present invention, including a strip light frame 100, on which a strip-shaped circuit board 1 is arranged, an LED chip 11 is arranged on the upper surface of the circuit board 1, and a lampshade 2 is arranged in the light emitting direction of the LED chip 11. Among them, one or more groups of paired conductive layers 12 are arranged on the upper surface of the circuit board 1, and each group of conductive layers 12 is distributed on both sides of the LED chip 11 and extends along the length direction, that is, a part of the LED chips 11 on the circuit board 1 are provided with strip-shaped conductive layers 12 on both sides. A conductive connector 200 is adapted to be installed on the strip light frame 100, and the conductive connector 200 fixes the circuit board 1 on the strip light frame 100, and is electrically connected to the conductive layers 12 on both sides of the LED chip 11 on the circuit board 1. Furthermore, the strip lamp frame 100, the circuit board 1 and the lampshade 2 are all made of materials that are easy to cut and process, and can be cut along the length direction, wherein the circuit board 1 is configured to always maintain a group of conductive layers 12 at the end of the circuit board 1 before and after cutting, and the circuit board 1 is positioned and assembled at at least one end of the conductive connector 200.

[0027] As an optional implementation scheme for the above-mentioned matching of the circuit board 1 and the conductive connector 200, in addition to the conductive layer 12 being provided at the end of the circuit board 1, a conductive layer 12 is also provided at the middle part of the circuit board 1 other than the end. Figure 2 As shown, the conductive layer 12 in the middle of the circuit board 1 extends between at least two adjacent LED chips 11, and the circuit board 1 is configured to be cut between two adjacent LED chips 11 and to divide the conductive layer 12 distributed on both sides of the two adjacent LED chips 11 into two sections along the length direction. The conductive layer 12 is configured in this way, so that after cutting, there is also a group of conductive layers 12 at the end of each section of the circuit board 1, and the LED chip 11 will not be damaged during cutting.

[0028] The conductive connector 200 is disposed on the strip light frame 100, and is used to position the circuit board 1 and provide electrical connection between the circuit boards 1 or to the external wires 300, etc. One or more conductive connectors may be disposed on the circuit board 1 or between the circuit boards 1. In one embodiment of the present invention, Figure 3 and Figure 4 As shown, the conductive connector 200 includes a connecting frame 3 connected to the end of the circuit board 1, the connecting frame 3 extends along the length direction of the circuit board 1, and the connecting frame 3 includes a first slot 31 set at the end. The connecting frame 3 includes two connecting pieces 4, each connecting piece 4 is set corresponding to the conductive layer 12 on each side of the circuit board 1, and the circuit board 1 is plugged and installed in the first slot 31, and is electrically connected by the connecting piece 4 and the conductive layer 12. The circuit board 1 can be a flexible board or a hard board.

[0029] Furthermore, the connecting frame 3 is configured to be connected between the conductive layers 12 at the ends of two adjacent circuit boards 1, and a first slot 31 is provided at each end. The circuit boards 1 at both ends of the connecting frame 3 are plugged and installed along the first slot 31, and the connecting piece 4 is bridged over the conductive layers 12 of the two circuit boards 1. In this way, multiple sections of circuit boards 1 are interconnected through the connecting frame 3, which is suitable for the production needs of similar strip light products with various length requirements. The connecting frame 3 is installed in conjunction with the inner wall of the strip light frame 100, for example, it is embedded and installed on the bottom surface along the inner wall of the strip light frame 100 or installed in the form of a slide groove shape. The circuit board 1 only needs to be plugged into the connecting frame 3, eliminating the need to set up a structure for installing the circuit board 1 on the strip light frame 100, which is more convenient for automated production, and is also suitable for automated production of strip lights using flexible LED light strips.

[0030] As another optional interconnection connection method, one end of the connecting frame 3 is connected to the circuit board 1, and the other end is connected to the wire 300, so that the circuit board 1 and the wire 300 are electrically connected to the connecting piece 4 respectively. Figure 5 The circuit board 1 and the wire 300 can be electrically connected through the connecting frame 3, and the wire 300 can be further connected to an external circuit such as a power supply, or can be connected to another circuit board 1 through another connecting frame 3 to achieve board-to-wire or board-to-board interconnection.

[0031] As one of the installation methods of the connecting piece 4 in the connecting frame 3, Figure 3 and Figure 4 The connecting frame 3 includes a second slot 32 that runs vertically through, and the connecting piece 4 is inserted into the connecting frame 3 along the second slot 32. At the same time, a through slot 33 is provided on the top of the connecting frame 3 to expose the LED chip 11, so that the related structure of the circuit board 1 will not block the LED chip 11, and the effect of no dark area is achieved after the strip lights are interconnected.

[0032] Preferably, the connecting piece 4 is configured as a structure of a folded metal sheet, including a first folded piece 41 and a second folded piece 42, wherein the first folded piece 41 is connected across the conductive strip, and the second folded piece 42 provides a function of fixing the circuit board 1. Optionally, a concave card interface 411 is further provided on the first folded piece 41, which is used to engage with a positioning protrusion (not shown in the figure) matched with the second slot 32, thereby limiting the movement of the connecting piece 4 relative to the connecting frame 3 after installation. A positioning protrusion 421 extending toward the bottom is provided on the second folded piece 42, and a positioning hole 13 is provided on the circuit board 1 corresponding to the positioning protrusion 421, so that when the connecting piece 4 is installed, the positioning protrusion 421 and the positioning hole 13 are plugged and matched, so that the circuit board 1 is fixed relative to the connecting piece 4, and the circuit board 1 will not fall off after installation.

[0033] In such Figure 5In the structure of the connecting frame 3, the connecting frame 3 includes a base 34 arranged along the length direction and vertical walls 35 arranged on both sides of the base 34, and two limit blocks 36 are connected to the inner side of the vertical wall 35 on each side at intervals. The limit blocks 36 are connected to the vertical wall 35 at the end of the connecting frame 3, and at the same time extend to the inner side of the connecting frame 3 in the length and width directions and have gaps with the base 34 and the vertical wall 35, so that a first slot 31 is formed between the limit block 36 and the base 34, and a second slot 32 is formed between the limit block 36 and the vertical wall 35. The two limit blocks 36 on both sides and the two limit blocks 36 on the same side are arranged at intervals, so that a through groove 33 opening upward is formed in the connecting frame 3, and after the circuit board 1 is installed on the connecting frame 3, each limit block 36 does not block the LED chip 11.

[0034] According to the above implementation scheme, in the light strip of the present invention, the circuit board 1 does not need to be inserted into the light strip frame 100. It only needs to use the connecting frame 3 to position and install the end of the circuit board 1 in the connecting frame 3, and fix the connecting frame 3 in the light strip frame 100, thus completing the assembly of the internal structure of the light strip. Because it mainly adopts the plug-in assembly method, it is very suitable for automated production.

[0035] As another optional embodiment of the circuit board 1 and the conductive connecting member 200 of the present invention, Figure 6 The conductive connecting member 200 includes a connecting end cover 5 arranged at the end of the strip light holder 100, and the connecting end cover 5 includes a shell 51 and a contact spring 52. The shell 51 is installed along the side wall 101 of the strip light holder 100. The outer terminal of the shell 51 is connected to the wire 300. The wire 300 penetrates the end of the shell 51 and is electrically connected to the two contact springs 52. The contact spring 52 extends from the shell 51 and extends into the interior of the lamp holder. The contact spring 52 is provided with two and includes a lap piece 521 bent toward the circuit board 1, and the lap piece 521 elastically abuts against the conductive layer 12.

[0036] The housing 51 includes a cover plate 53 covering the end of the strip light frame 100 and a mounting strip 54 adapted to the two walls of the strip light frame 100. The inner sides of the two side walls 101 of the strip light frame 100 are provided with mounting grooves 102 for facilitating the insertion of the mounting strip 54. During assembly, the circuit board 1 is placed flat in the strip light frame 100, and the connecting end cover 5 is inserted and installed from the end. The entry end of the lap piece 521 of the contact spring 52 is inclined so that it abuts against the conductive layer 12 at the end of the circuit board 1 during installation, and presses the circuit board 1 to the bottom surface of the light frame, so that the circuit board 1 is fixed. The lampshade 2 and the strip light frame 100 are assembled and cover the opening between the two walls of the strip light frame 100. Optionally, the lampshade 2 is also inserted and installed on the strip light frame 100 through another set of mounting grooves 102.

[0037] In addition, the circuit board 1 can be installed in the strip light frame 100 after being fixed by other intermediate connecting parts, or can be placed flat on the bottom surface of the strip light frame 100 , or can be adhered to the bottom surface of the strip light frame 100 .

[0038] Preferably, the connecting end cap 5 is a plastic-encapsulated end cap formed by integrally injecting the outer shell 51, the contact spring 52 and the wire 300, and wrapping and fixing the contact spring 52 and the wire 300. Figure 6 As shown, in order to avoid blocking the light emission of the LED chip 11 after assembly, the protruding parts of the two contact springs 52 are arranged to be located on both sides of the LED chip 11 .

[0039] According to the above implementation scheme, the strip light frame and the lampshade can be cut to the required length on the automated line. After the circuit board is cut along the LED chips at the location of the conductive layer, it is installed in the strip light frame, and then the connecting end cover that is injection molded with the contact spring and the wire is installed in the strip light frame and the conductive layer to draw power. No welding is required, the steps are simple, and the efficiency of the automated production of strip lights is improved.

[0040] The light bar of the present invention may include a connection end cap, or may include both a connection end cap and a plug-in frame. The above implementation schemes of the circuit board and the conductive connector are respectively applied to the ends of the cuttable circuit board and the connections between the circuit boards. When light bars of different lengths need to be assembled, a single circuit board or multiple circuit boards are assembled, and power is flexibly connected through a plug-in frame or a connection end cap without the need for welding wires. It is also very suitable for the production and assembly of lamps with smaller connection structures such as slender light bars.

[0041] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A strip light, comprising a strip light frame (100), a strip circuit board (1) being arranged on the strip light frame (100), an LED chip (11) being arranged on the upper surface of the circuit board (1), and a lampshade (2) being arranged in the light emitting direction of the LED chip (11), characterized in that: The upper surface of the circuit board (1) is provided with one or more groups of paired conductive layers (12), each group of conductive layers (12) is distributed on both sides of the LED chip (11) and extends along the length direction, a conductive connector (200) is adapted to be installed on the strip light frame (100), the conductive connector (200) and the conductive layers (12) on both sides of the LED chip (11) are respectively electrically connected, the circuit board (1) can be cut along the length direction, the circuit board (1) is arranged so that a group of conductive layers (12) are always maintained at the end of the circuit board (1) before and after cutting, and the circuit board (1) is positioned and assembled at least one end of the conductive connector (200).

2. The light strip according to claim 1, characterized in that: A conductive layer (12) is provided in the middle of the circuit board (1) outside the end portion, the conductive layer (12) in the middle of the circuit board (1) extends across at least two adjacent LED chips (11), and the circuit board (1) is configured to be able to be cut between two adjacent LED chips (11) and to divide the conductive layer (12) distributed on both sides of the two adjacent LED chips (11) into two sections along the length direction.

3. The light strip according to claim 1, characterized in that: The conductive connector (200) comprises a connecting frame (3) connected to the end of the circuit board (1), the connecting frame (3) extending along the length direction of the circuit board (1) and comprising a first slot (31) arranged at the end, the connecting frame (3) comprising two connecting pieces (4), each connecting piece (4) being arranged corresponding to the conductive layer (12) on each side of the circuit board (1), the circuit board (1) being plugged and installed in the first slot (31), and the connecting piece (4) and the conductive layer (12) being electrically connected.

4. The light strip according to claim 3, characterized in that: The connecting frame (3) is configured to be connected between the conductive layers (12) at the ends of two adjacent circuit boards (1), and each end is provided with a first slot (31). The circuit boards (1) at the two ends of the connecting frame (3) are respectively plugged and installed along the first slot (31), and the connecting piece (4) is bridged on the conductive layers (12) of the two circuit boards (1).

5. The light strip according to claim 3, characterized in that: One end of the connecting frame (3) is connected to the circuit board (1), and the other end is connected to the wire (300), so that the circuit board (1) and the wire (300) are electrically connected to the connecting piece (4) respectively.

6. The light strip according to claim 3, characterized in that: The connecting frame (3) comprises a second slot (32) penetrating vertically, and the connecting piece (4) is inserted into the connecting frame (3) along the second slot (32).

7. The light strip according to claim 3, characterized in that: A through slot (33) is provided on the top of the connecting frame (3) to expose the LED chip (11).

8. The light strip according to claim 3, characterized in that: The connecting piece (4) is provided with a positioning protrusion (421) extending toward the bottom, and the circuit board (1) is provided with a positioning hole (13) corresponding to the positioning protrusion (421), so that when the connecting piece (4) is installed, the positioning protrusion (421) and the positioning hole (13) are plugged and matched, thereby achieving the fixation of the circuit board (1) relative to the connecting piece (4).

9. The light strip according to claim 1 or 3, characterized in that: The conductive connector (200) comprises a connection end cover (5) arranged at the end of the strip light frame (100), the connection end cover (5) comprises a shell (51) and a contact spring (52), the shell (51) is installed along the side wall (101) of the strip light frame (100), the outer end of the shell (51) is connected to the wire (300), the wire (300) penetrates the end of the shell (51) and is electrically connected to two contact springs (52), the contact springs (52) extend from the shell (51) to the inside of the light frame, the contact springs (52) are arranged in two and include a lap joint (521) bent toward the circuit board (1), and the lap joint (521) and the conductive layer (12) are elastically abutted.

10. The light strip according to claim 9, characterized in that: The connecting end cover (5) is formed by integrally injecting the outer shell (51), the contact spring (52) and the wire (300), and the outer shell (51) wraps and fixes the contact spring (52) and the wire (300).

Images