Non-polarity LED light bar and randomly-spliced lamp

Abstract

The lamp is formed by splicing at least two non-polar LED lamp strips, each LED lamp strip comprises a shell and plugs installed at the two ends of the shell, a printed circuit board (PCB) is installed in the shell, the PCB is provided with a positive electrode circuit and a negative electrode circuit which are communicated, a signal circuit is arranged between the positive electrode circuit and the negative electrode circuit, and the positive electrode circuit and the negative electrode circuit are connected through the signal circuit. According to the utility model, the plurality of LED chips are cascaded in series, and then data receiving and decoding are completed through one signal line, so that the signal transmission direction of the LED light bar does not need to be identified in the installation and power connection process, and the installation is simpler and more convenient. And the LED chips can be automatically shaped and strengthened through random splicing, so that the lamp panel is normally lightened, the installation is simpler and more convenient, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a lighting device, and more particularly to an LED light strip. Background Technology

[0002] In existing technologies, when LED beads are arranged in an array to form LED light strips, their signal ports have signal input and signal output terminals. It is required that the control signal always enters from the signal input terminal and exits from the signal output terminal. During the production process, manual installation can easily lead to confusion about the direction, causing the signal transmission direction of the LED light strip to be reversed, increasing installation time and labor costs. In addition, when several LED light strips are spliced ​​together, users also need to splice the head and tail according to the signal transmission direction of the LED light strips, reducing assembly efficiency. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a non-polar LED light strip and a lamp fixture that can be arbitrarily spliced.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A non-polarized LED light strip includes a housing and end caps mounted at both ends of the housing. A PCB board is installed inside the housing. The PCB board has a through positive line and a negative line, and a signal line is provided between the positive line and the negative line. An LED chip electrically connected to the positive line, the negative line, and the signal line is soldered onto the PCB board. The end face of the end cap has a recessed insertion interface, and the insertion interface has a positive terminal, a negative terminal, and a signal terminal. The positive terminal, the negative terminal, and the signal terminal on the end caps are electrically connected to the positive line, the negative line, and the signal line on the PCB board through wires, respectively.

[0006] Compared to existing technologies, this application involves cascading several LED chips in series and then receiving and decoding data through a single signal line. Because the LED chips have built-in signal shaping circuits, any signal transmission pin of the LED chip receives a signal, and after waveform shaping, it is output from another signal transmission pin. This makes it possible to distinguish between the input and output ends of the entire light board. During installation and power connection, it is not necessary to identify the signal transmission direction of the LED light strip. Any splicing can be done without the LED chips automatically shaping and strengthening the signal, allowing the light board to light up normally. This makes installation simpler and more convenient, and improves production efficiency.

[0007] As a further improvement of this utility model, the housing is integrally extruded from an opaque material and a light-transmitting material. The opaque material forms the lamp housing, and the light-transmitting material forms the light-transmitting cover. A reinforcing plate is integrally formed inside the lamp housing. The cavity on the upper side of the reinforcing plate is the light source cavity, and the cavity on the lower side is the plug cavity. After assembly, the PCB board is installed in the light source cavity.

[0008] As a further improvement of this utility model, the upper side of the reinforcing plate is provided with two inwardly protruding strips, and a lamp board slot is formed between the strips and the reinforcing plate. After assembly, the PCB board is inserted into the lamp board slot.

[0009] As a further improvement of this utility model, the back of the plug is provided with a first plug-in part and a second plug-in part, the plug interface is located inside the second plug-in part, after assembly, the first plug-in part is inserted into the light source cavity, the second plug-in part is inserted into the plug cavity, and the two ends of the reinforcing plate are provided with clearance grooves for wires to pass through.

[0010] As a further improvement of this utility model, the bottom of the lamp housing is provided with snap-fit ​​openings at both ends near the plug, and the lower end of the second insertion part of the plug is provided with a snap-fit ​​part. After assembly, the snap-fit ​​part is snapped into the snap-fit ​​opening.

[0011] As a further improvement of this utility model, the reinforcing plate is configured as a downwardly concave arc shape.

[0012] A luminaire that can be arbitrarily spliced ​​includes two non-polar LED light strips, which are spliced ​​together by a connector.

[0013] As a further improvement of this utility model, the connector has three conductive wires, and each end of the three conductive wires is provided with a conductive terminal. The conductive terminals at both ends are respectively plugged into the positive terminal, negative terminal and signal terminal on the two LED light strips to achieve electrical connection.

[0014] As a further improvement of this utility model, the connector is provided with insertion slots at both ends for inserting the LED light strip, and a connecting part is provided between the two insertion slots. The connecting part is provided with three conductive posts penetrating the side wall of the connecting part. After assembly, the positive terminal, negative terminal and signal terminal on the LED light strip are respectively inserted into the conductive posts to achieve electrical connection.

[0015] The beneficial effects of this utility model are as follows: This utility model cascades several LED chips in series, and then completes the data reception and decoding through a single signal line. After receiving a signal, any signal transmission pin of the LED chip undergoes waveform shaping before being output from another signal transmission pin. This makes it possible to distinguish between the input and output ends of the entire light board. During installation and power connection, it is not necessary to identify the signal transmission direction of the LED light strip. Any splicing can be carried out automatically and enhanced by the LED chips, so that the light board can light up normally. Installation is simpler and more convenient, and production efficiency is improved. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is an exploded view of the structure of this utility model.

[0019] Figure 3 This is a structural cross-sectional view of the shell.

[0020] Figure 4 This is a partial structural schematic diagram of the present invention.

[0021] Figure 5 This is a partial exploded view of the structure of this utility model (bottom side up).

[0022] Figure 6 This is the circuit schematic of a PCB board.

[0023] Figure 7 This is the first embodiment of a two-LED light strip splicing structure.

[0024] Figure 8 This is the second embodiment of the two LED light strip splicing structure. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0026] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0027] The following describes some embodiments of the present invention with reference to the accompanying drawings.

[0028] Reference Figures 1 to 6A non-polar LED light strip, characterized in that it includes a housing 1 and end caps 2 installed at both ends of the housing 1; a PCB board 3 is installed inside the housing 1, the PCB board 3 is provided with a through positive line and a through negative line, and a signal line is provided between the positive line and the negative line; an LED chip 31 is soldered on the PCB board 3 and electrically connected to the positive line, the negative line and the signal line; the end face of the end cap 2 is provided with a recessed insertion interface 21, the insertion interface 21 is provided with a positive terminal 22, a negative terminal 23 and a signal terminal 24, and the positive terminal 22, the negative terminal 23 and the signal terminal 24 on the end caps 2 at both ends are electrically connected to the positive line, the negative line and the signal line on the PCB board 3 through wires respectively. This invention cascades several LED chips in series and then uses a single signal line to receive and decode data. After receiving a signal, any signal transmission pin of an LED chip undergoes waveform shaping before being output from another signal transmission pin. This eliminates the distinction between input and output terminals on the entire LED strip, making it unnecessary to identify the signal transmission direction of the LED strip during installation and power connection. This simplifies installation, improves production efficiency, and makes the process more convenient.

[0029] Reference Figure 6 , Figure 6 This embodiment provides a typical circuit schematic, including LED chips L1 to L6. The second pins of LED chips L1 to L6 are connected to the negative terminal, and the fourth pins of LED chips L1 to L6 are connected to the positive terminal (5V). The third pin of LED chip L1 is connected to the signal terminal 24 of one end of the plug 2, and the first pin of LED chip L6 is connected to the signal terminal 24 of the other end of the plug 2. When adjacent LED chips are connected in series, the first pin of one LED chip is electrically connected to the third pin of another LED chip. The circuit structure is simple.

[0030] Specifically, the LED chip 31 uses the WS2812B series lamp beads. Specifically, it can use WS2812B-2020 or WS2812B-5050. The WS2812B-2020 is an intelligent externally controlled LED light source that integrates control and light-emitting circuits. Its exterior uses the latest molding packaging technology, encapsulating the IC and light-emitting chip in a 2020 package size, with each component representing a pixel. The pixel contains an intelligent digital interface data latch signal shaping, amplification, and driving circuit, as well as a high-precision internal oscillator and a programmable constant current control section, effectively ensuring high color consistency of the pixel light. The data protocol uses a single-wire return-to-zero (RZ) communication method. After a pixel is powered on and reset, the DI terminal receives data transmitted from the controller. The first 24 bits of data are extracted by the first pixel and sent to its internal data latch. The remaining data is shaped and amplified by the internal shaping circuit and then forwarded to the next cascaded pixel via the DO port. The signal decreases by 24 bits with each pixel. The pixel uses automatic shaping and forwarding technology, so the number of cascaded pixels is not limited by the signal transmission, but only by the signal transmission speed requirement. The port scanning frequency of up to 2KHz will not cause flickering under the capture of high-definition cameras, making it very suitable for high-speed mobile products. The RESET time of over 280μs will not cause false resets in the event of an interruption, and can support lower frequency and cheaper MCUs. Integrating the control circuit onto the LED makes the circuit simpler, smaller, and easier to install.

[0031] As a further improvement of this utility model, the housing 1 is integrally extruded from an opaque material and a light-transmitting material. The opaque material forms the lamp housing 11, and the light-transmitting material forms the light-transmitting cover 12. A reinforcing plate 13 is integrally formed inside the lamp housing 11. The cavity on the upper side of the reinforcing plate 13 is the light source cavity 15, and the cavity on the lower side is the plug cavity 16. After assembly, the PCB board 3 is installed inside the light source cavity 15. In this embodiment, the light-transmitting cover 12 can be a fully transparent material or a milky white material between transparent and semi-transparent. The overall assembly structure is simple and easy to assemble. In this embodiment, the plugs 2 at both ends of the housing 1 are set with the same structure. During installation, the plugs 2 can be assembled with either end of the housing 1, thereby improving production efficiency.

[0032] As a further improvement of this utility model, the upper side of the reinforcing plate 13 is provided with two inwardly protruding ribs 14, and a lamp board slot 17 is formed between the ribs 14 and the reinforcing plate 13. After assembly, the PCB board 3 is inserted into the lamp board slot 17 for easy assembly.

[0033] As a further improvement of this utility model, the back of the plug 2 is provided with a first plug-in part 25 and a second plug-in part 26. The plug interface 21 is located inside the second plug-in part 26. After assembly, the first plug-in part 25 is inserted into the light source cavity 15, and the second plug-in part 26 is inserted into the plug cavity 16. Both ends of the reinforcing plate 13 are provided with clearance grooves 18 for wires to pass through. The assembly structure is simple.

[0034] As a further improvement of this utility model, the bottom of the lamp housing 11 is provided with snap-fit ​​openings 19 near both ends of the plug 2, and the lower end of the second insertion part 26 of the plug 2 is provided with a snap-fit ​​part 27. After assembly, the snap-fit ​​part 27 is snapped into the snap-fit ​​opening 19, and the assembly structure is simple.

[0035] As a further improvement of this utility model, the reinforcing plate 13 is configured as a downwardly concave arc shape, which can increase the overall strength of the shell 1.

[0036] A luminaire that can be arbitrarily spliced ​​includes two non-polarized LED light strips, which are spliced ​​together by a connector 4. In this embodiment, the connector 4 consists of three conductive wires 41, such as... Figure 7 As shown, it can also be an I-shaped cross-section, such as... Figure 8 As shown, relative to the three conductive lines 41, each of the three conductive lines 41 has a conductive terminal 42 at both ends. The conductive terminals 42 at both ends are respectively plugged into the positive terminal 22, negative terminal 23, and signal terminal 24 on the two LED light strips to achieve electrical connection. The connection structure is simple, and the signal pin only needs one signal line to complete the data transmission. Compared with the second embodiment, the connector 4 has insertion slots 43 at both ends for the LED light strip to be inserted. A connecting part 44 is provided between the two insertion slots 43. The connecting part 44 is provided with three conductive posts 45 penetrating the side wall of the connecting part 44. After assembly, the positive terminal 22, negative terminal 23, and signal terminal 24 on the LED light strip are respectively plugged into the conductive posts 45 to achieve electrical connection, making the assembly even simpler.

[0037] In this invention, the term "multiple" refers to two or more items unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] It should be noted that when a component is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0039] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A non-polar LED light strip, characterized in that... The device includes a housing (1) and plugs (2) installed at both ends of the housing (1); a PCB board (3) is installed inside the housing (1), the PCB board (3) is provided with a through positive line and a negative line, and a signal line is provided between the positive line and the negative line. An LED chip (31) is soldered on the PCB board (3) and electrically connected to the positive line, the negative line and the signal line. The end face of the plug (2) is provided with a recessed plug interface (21), and the plug interface (21) is provided with a positive terminal (22), a negative terminal (23) and a signal terminal (24). The positive terminal (22), the negative terminal (23) and the signal terminal (24) on the plugs (2) at both ends are electrically connected to the positive line, the negative line and the signal line on the PCB board (3) through wires.

2. The non-polar LED light strip according to claim 1, characterized in that... The housing (1) is integrally extruded from an opaque material and a light-transmitting material. The opaque material forms the lamp housing (11), and the light-transmitting material forms the light-transmitting cover (12). A reinforcing plate (13) is integrally formed inside the lamp housing (11). The cavity on the upper side of the reinforcing plate (13) is the light source cavity (15), and the cavity on the lower side is the plug cavity (16). After assembly, the PCB board (3) is installed inside the light source cavity (15).

3. The non-polar LED light strip according to claim 2, characterized in that... The upper side of the reinforcing plate (13) is provided with two inwardly protruding ridges (14), and a lamp board slot (17) is formed between the ridges (14) and the reinforcing plate (13). After assembly, the PCB board (3) is inserted into the lamp board slot (17).

4. The non-polar LED light strip according to claim 2, characterized in that... The back of the plug (2) is provided with a first plug part (25) and a second plug part (26). The plug interface (21) is located inside the second plug part (26). After assembly, the first plug part (25) is inserted into the light source cavity (15), and the second plug part (26) is inserted into the plug cavity (16). Both ends of the reinforcing plate (13) are provided with clearance grooves (18) for wires to pass through.

5. The non-polar LED light strip according to claim 2, characterized in that... The bottom of the lamp housing (11) is provided with snap-fit ​​openings (19) near both ends of the plug (2), and the lower end of the second insertion part (26) of the plug (2) is provided with a snap-fit ​​part (27). After assembly, the snap-fit ​​part (27) is snapped into the snap-fit ​​opening (19).

6. The non-polar LED light strip according to claim 2, characterized in that... The reinforcing plate (13) is configured as a downwardly concave arc shape.

7. A lamp fixture that can be arbitrarily assembled, characterized in that... It includes two or more non-polar LED light strips as described in any one of claims 1 to 6, and the two LED light strips are spliced ​​together by a connector (4).

8. The arbitrarily assembled lamp fixture according to claim 7, characterized in that... The connector (4) consists of three conductive wires (41), and each end of the three conductive wires (41) is provided with a conductive terminal (42). The conductive terminals (42) at both ends are connected to the positive terminal (22), negative terminal (23) and signal terminal (24) on the two LED light strips respectively to achieve electrical connection.

9. The arbitrarily assembled lamp fixture according to claim 7, characterized in that... The connector (4) has insertion slots (43) at both ends for inserting the LED light strip. A connecting part (44) is provided between the two insertion slots (43). The connecting part (44) is provided with three conductive posts (45) that penetrate the side wall of the connecting part (44). After assembly, the positive terminal (22), negative terminal (23) and signal terminal (24) on the LED light strip are respectively inserted into the conductive posts (45) to achieve electrical connection.

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