An LED lamp

Abstract

The utility model discloses a LED lamp, include: the light -transmitting cylinder is equipped with a plurality of first installation groove, the electric connector is installed in the one end of light -transmitting cylinder, the drive board is installed in the electric connector and is connected with electric connector electricity, the lamp sheet includes flexible main light bar and vice light bar, a plurality of vice light bar is connected in one side of main light bar in parallel, and a plurality of lamp beads are integrated on vice light bar, and the electric contact piece is extended on main light bar, and each vice light bar is matched and is inserted in the first installation groove, and the electric contact piece is set up in the drive board and is connected with drive board electricity, the whole simple structure changes shape through the flexible structure of lamp sheet to adapt to various shapes light -transmitting cylinder, and the installation is quick and convenient.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to an LED lamp. Background Technology

[0002] Some existing LED lights use an internal light panel as the light source. This light panel is an aluminum substrate with integrated LED chips. Since aluminum substrates cannot be folded, bent, or deformed, each type of LED requires a matching light panel with a fixed shape for installation, resulting in low panel versatility. For LED lights that require multiple light panels internally, this light panel structure leads to a complex internal installation structure, cumbersome wiring, and inconvenient installation. Utility Model Content

[0003] The present invention aims to at least partially solve one of the aforementioned technical problems in the related art. To this end, the present invention proposes an LED light.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] The LED lamp according to a first aspect embodiment of the present invention includes:

[0006] A light-transmitting tube, wherein the light-transmitting tube is provided with a plurality of first mounting grooves;

[0007] An electrical connector, which is installed at one end of the light-transmitting tube;

[0008] A drive board, which is mounted in the electrical connector and electrically connected to the electrical connector;

[0009] The light sheet includes a flexible main light strip and auxiliary light strips. Several auxiliary light strips are connected in parallel to one side of the main light strip. Several LED beads are integrated on the auxiliary light strips. Electrical contacts extend from the main light strip. Each auxiliary light strip is paired and inserted into the first mounting slot. The electrical contacts pass through the drive plate and are electrically connected to the drive plate.

[0010] The LED lamp according to the embodiments of the present utility model has at least the following beneficial effects: the overall structure is simple, the shape can be changed by the flexible structure of the lamp sheet to adapt to various shapes of light-transmitting tubes, and the installation is quick and convenient.

[0011] According to some embodiments of the present invention, the electrical connector has an internal mounting cavity, the drive plate is installed in the mounting cavity and the end of the mounting cavity near the light-transmitting tube is sealed.

[0012] According to some embodiments of this utility model, the electrical contact piece is provided with three electrical terminals, the drive board is provided with three conductive terminals, and the electrical terminals are paired and welded to the conductive terminals one by one.

[0013] According to some embodiments of the present invention, the two long sides of the auxiliary light strip extending along the length direction are provided with rolled edges, and the two side walls of the first mounting groove are provided with arc surfaces adapted to the shape of the rolled edges, and the rolled edges abut against the arc surfaces of the two side walls of the first mounting groove.

[0014] According to some embodiments of the present invention, the light-transmitting tube is provided with a plurality of second mounting slots, the second mounting slots being located between the first mounting slot and the outer wall of the light-transmitting tube, the second mounting slots being used to insert a light-transmitting sheet with color or pattern, and the lamp beads projecting light outward through the light-transmitting sheet.

[0015] According to some embodiments of this utility model, the driver board integrates a rectifier circuit, a chip U1, an inductor L1, a capacitor E1, a capacitor E2, a resistor R1, a resistor R2, and a resistor R3; wherein,

[0016] One end of the resistor R1 is connected to the third pin of the chip U1, and the other end is grounded;

[0017] One end of the resistor R2 is connected to the fourteenth pin of the chip U1, and the other end is grounded;

[0018] The negative terminal of capacitor E1 is grounded, and the positive terminal is connected to the positive output pin of the rectifier circuit.

[0019] The positive output pin of the rectifier circuit, the first pin, the fifth pin, the eleventh pin, and the sixteenth pin of the chip U1 are connected in parallel and serve as the positive output terminal V+.

[0020] The inductor L1 and the capacitor E2 are connected in series between the first pin of the chip U1 and the positive output terminal V+, and the negative terminal of the capacitor E2 is connected to the inductor L1.

[0021] The resistor R3 is connected between the fifth pin of the chip U1 and the end of the inductor L1 away from the capacitor E2;

[0022] The sixth pin of the chip U1 is connected between the negative terminals of the inductor L1 and the capacitor E2;

[0023] The eighth pin of the chip U1 is used as the negative output terminal W-;

[0024] The ninth pin of the chip U1 is used as the negative output terminal Y-;

[0025] The thirteenth pin of the chip U1 is grounded;

[0026] The electrical connector has three electrical terminals, which are respectively connected to the positive output terminal V+, the negative output terminal W-, and the negative output terminal Y-.

[0027] According to some embodiments of the present invention, the rectifier circuit includes a first diode VD1, a second diode VD2, a third diode VD3, and a fourth diode VD4;

[0028] The negative terminal of the first diode VD1 is connected to the positive terminal of the second diode VD2 to serve as the live wire input pin;

[0029] The negative terminal of the third diode VD3 is connected to the positive terminal of the fourth diode VD4 to serve as the neutral input pin.

[0030] The positive terminal of the first diode VD1 is connected to the positive terminal of the third diode VD3 to serve as a ground output pin;

[0031] The negative terminal of the second diode VD2 is connected to the negative terminal of the fourth diode VD4 to serve as the positive output pin.

[0032] According to some embodiments of this utility model, the chip U1 is model number TH253XS or TH253XSA.

[0033] According to some embodiments of the present invention, the inductor L1 is a freewheeling inductor.

[0034] According to some embodiments of this utility model, capacitor E1 and capacitor E2 are filter capacitors.

[0035] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0036] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0037] Figure 1 This is an exploded view of the structure of this utility model;

[0038] Figure 2 This is a schematic diagram of the internal assembly of the light-transmitting tube;

[0039] Figure 3 This is a schematic diagram of the structure of the light sheet;

[0040] Figure 4 This is a schematic diagram showing the usage status of the light sheet;

[0041] Figure 5yes Figure 4 A sectional view;

[0042] Figure 6 This is an assembly diagram of the LED panel and driver board;

[0043] Figure 7 This is the circuit diagram on the driver board.

[0044] Reference numerals: light-transmitting tube 100; first mounting groove 110; second mounting groove 120; electrical connector 200; mounting cavity 210; drive board 300; conductive terminal 310; lamp sheet 400; main light strip 410; auxiliary light strip 420; lamp bead 421; rolled edge 422; electrical contact piece 430; electrical terminal 431; light-transmitting sheet 500. Detailed Implementation

[0045] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0046] This utility model relates to an LED lamp, including a light-transmitting tube 100, an electrical connector 200, a driver board 300, and a lamp sheet 400.

[0047] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the light-transmitting tube 100 can be cylindrical, polygonal, petal-shaped, etc. The light-transmitting tube 100 has several first mounting grooves 110, each extending along the axial direction of the light-transmitting tube 100 and distributed sequentially along its circumference. The electrical connector 200 can be a screw-type connector, installed at one end of the light-transmitting tube 100, and fixed to the light-transmitting tube 100 by snap-fit, screw fastening, or adhesive application. The drive board 300 is an aluminum substrate on which various electronic components are integrated. The drive board 300 is installed on the electrical connector 200 and electrically connected to the electrical connector 200 via wires, connecting to the live and neutral wires of the mains power supply. The lamp sheet 400 includes a main lamp strip 410 and an auxiliary lamp strip 420, both of which are flexible and can be bent, folded, or deformed. The secondary light strip 420 integrates several LED beads 421. Each LED bead 421 is electrically connected to the main light strip 410 via internal wires. The secondary light strips 420 are connected to the main light strip 410 in parallel, extending from one side of the main light strip 410 in a spaced-apart and parallel manner. Electrical contacts 430 extend from the main light strip 410, each with three terminals 431. The circuitry within the main light strip 410 is paired with the terminals 431 on the electrical contacts 430. During installation, the main light strip 410 is bent or folded according to the shape of the light-transmitting tube 100, allowing each secondary light strip 420 to be paired and inserted into its respective first mounting slot 110. Figure 6 As shown, the driver board 300 has three conductive terminals 310. The driver board 300 is brought close to the electrical connector 430, which is inserted into the driver board 300. Each electrical terminal 431 on the electrical connector 430 is connected to each conductive terminal 310 on the driver board 300. The electrical terminals 431 and conductive terminals 310 are then spot-welded together, thus achieving electrical connection and mutual fixation between the driver board 300 and the lamp element 400. The electrical connector 200 is connected to the light-transmitting tube 100, and the driver board 300 enters the interior of the electrical connector 200, thereby completing the assembly of the LED lamp. The overall structure of the LED lamp is simple. The flexible structure of the lamp element 400 allows it to change shape to adapt to various shapes of light-transmitting tubes 100, making installation quick and convenient.

[0048] In one embodiment, such as Figure 1 As shown, the electrical connector 200 has an internal mounting cavity 210. The drive plate 300 is installed in the mounting cavity 210, and after installation, the drive plate 300 seals the end of the mounting cavity 210 near the light-transmitting tube 100. The wires between the drive plate 300 and the electrical connector 200 are located in the mounting cavity 210. The drive plate 300 seals the mounting cavity 210, thus preventing insects and dust.

[0049] In one embodiment, such as Figure 3and Figure 5 As shown, the secondary light strip 420 has rolled edges 422 on its two long sides extending along its length. The rolled edges 422 are arc-shaped bends. The two side walls of the first mounting groove 110 are arc-shaped, and the arc shape matches the shape of the rolled edges 422. When the secondary light strip 420 is inserted into the first mounting groove 110, the rolled edges 422 abut against the arc-shaped groove walls on both sides of the first mounting groove 110. The elasticity of the rolled edges 422 allows the secondary light strip 420 to be stably placed on the first mounting groove 110 without wobbling.

[0050] In one embodiment, such as Figure 3 As shown, the light-transmitting tube 100 is provided with several second mounting slots 120, which are located between the first mounting slot 110 and the outer wall of the light-transmitting tube 100. The second mounting slots 120 are used to insert light-transmitting sheets 500 with colors or patterns. After installation, the light generated by the lamp beads 421 passes through the light-transmitting sheets 500 and is projected onto the outside of the light-transmitting tube 100, thereby forming different colors of light or projecting different patterns.

[0051] In one embodiment, such as Figure 7As shown, the driver board 300 integrates a rectifier circuit, chip U1, inductor L1, capacitors E1 and E2, and resistors R1, R2, and R3. One end of resistor R1 is connected to the third pin of chip U1, and the other end is grounded. The third pin of chip U1 is the current sampling port CS1, and it works with R1 to adjust the output current. One end of resistor R2 is connected to the fourteenth pin of chip U1, and the other end is grounded. The fourteenth pin of chip U1 is the OVP setting port ROVP, and it adjusts the output open-circuit voltage through R2. The negative terminal of capacitor E1 is grounded, and the positive terminal is connected to the positive output pin of the rectifier circuit. Preferably, capacitor E1 is a filter capacitor, serving a filtering function. The positive output pin of the rectifier circuit, the first pin (drain of the internal high-voltage power transistor), the fifth pin (current sampling port CS2), the eleventh pin (color temperature adjustment module control pin), and the sixteenth pin (chip high-voltage power supply port) of chip U1 are connected in parallel and serve as the positive output terminal V+. An inductor L1 and a capacitor E2 are connected in series between the first pin of chip U1 and its positive output terminal V+. The negative terminal of capacitor E2 is connected to inductor L1, which is a freewheeling inductor. A resistor R3 is connected between the fifth pin of chip U1 and the end of inductor L1 furthest from capacitor E2. The sixth pin of chip U1 (GND2, the ground of the color temperature adjustment module) is connected between inductor L1 and the negative terminal of capacitor E2. Capacitor E2 is a filter capacitor used to control the duration of the dimming reset time, preventing flickering and extending the life of the lamp. The eighth pin of chip U1 (Drv2, the second street light control pin) serves as the negative output terminal W-. The ninth pin of chip U1 (Drv1, the first street light control pin) serves as the negative output terminal Y-. The thirteenth pin of chip U1 (GND1, the chip ground) is grounded. The electrical connector 430 has three terminals 431, which are respectively connected to the positive output terminal V+, the negative output terminal W-, and the negative output terminal Y-. Chip U1 is either TH253XS or TH253XSA, a non-isolated step-down constant current dual-channel LED color temperature adjustment chip. This chip operates in inductor current critical continuous mode and is suitable for non-isolated step-down LED constant current power supplies with a full input voltage range of 85Vac to 265Vac. Users can adjust the color temperature through a continuous wall switch, achieving high-precision LED constant current output and excellent line voltage regulation. Because the chip operates in inductor current critical mode, the output current does not change with variations in inductance and LED operating voltage, achieving excellent load regulation. The chip employs a patented method to overcome the slow start-up speed of typical single-chip microcomputer color temperature adjustment systems, providing better protection for the LED lights.

[0052] Furthermore, the rectifier circuit includes a first diode VD1, a second diode VD2, a third diode VD3, and a fourth diode VD4. The negative terminal of the first diode VD1 is connected to the positive terminal of the second diode VD2 to serve as the live wire input pin. The negative terminal of the third diode VD3 is connected to the positive terminal of the fourth diode VD4 to serve as the neutral wire input pin. The positive terminal of the first diode VD1 is connected to the positive terminal of the third diode VD3 to serve as the ground output pin. The negative terminal of the second diode VD2 is connected to the negative terminal of the fourth diode VD4 to serve as the positive output pin.

[0053] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0056] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] In the description of this specification, references to terms such as "some specific embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, 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.

[0058] 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. An LED light, characterized in that, include: A light-transmitting tube (100) is provided with a plurality of first mounting grooves (110); An electrical connector (200) is installed at one end of the light-transmitting tube (100); A drive board (300) is mounted in the electrical connector (200) and electrically connected to the electrical connector (200); The light sheet (400) includes a flexible main light strip (410) and a secondary light strip (420). A plurality of the secondary light strips (420) are connected in parallel to one side of the main light strip (410). A plurality of lamp beads (421) are integrated on the secondary light strips (420). Electrical contacts (430) extend from the main light strip (410). Each of the secondary light strips (420) is paired and inserted into the first mounting groove (110). The electrical contacts (430) pass through the drive plate (300) and are electrically connected to the drive plate (300).

2. The LED lamp according to claim 1, characterized in that: The electrical connector (200) has an internal mounting cavity (210), and the drive plate (300) is installed in the mounting cavity (210) and covers the end of the mounting cavity (210) near the light-transmitting tube (100).

3. The LED lamp according to claim 1, characterized in that: The electrical contact piece (430) is provided with three electrical terminals (431), and the drive plate (300) is provided with three conductive terminals (310). The electrical terminals (431) and the conductive terminals (310) are paired and soldered one by one.

4. The LED lamp according to claim 1, characterized in that: The secondary light strip (420) has rolled edges (422) on its two long sides extending along the length direction. The two side walls of the first mounting groove (110) are provided with arc surfaces adapted to the shape of the rolled edges (422). The rolled edges (422) abut against the arc surfaces of the two side walls of the first mounting groove (110).

5. The LED lamp according to claim 1, characterized in that: The light-transmitting tube (100) is provided with a plurality of second mounting slots (120). The second mounting slots (120) are located between the first mounting slot (110) and the outer wall of the light-transmitting tube (100). The second mounting slots (120) are used to insert a light-transmitting sheet (500) with color or pattern. The lamp bead (421) projects light outward through the light-transmitting sheet (500).

6. The LED lamp according to any one of claims 1 to 5, characterized in that: The driver board (300) integrates a rectifier circuit, chip U1, inductor L1, capacitor E1, capacitor E2, resistors R1, R2, and R3; among which, One end of the resistor R1 is connected to the third pin of the chip U1, and the other end is grounded; One end of the resistor R2 is connected to the fourteenth pin of the chip U1, and the other end is grounded; The negative terminal of capacitor E1 is grounded, and the positive terminal is connected to the positive output pin of the rectifier circuit. The positive output pin of the rectifier circuit, the first pin, the fifth pin, the eleventh pin, and the sixteenth pin of the chip U1 are connected in parallel and serve as the positive output terminal V+. The inductor L1 and the capacitor E2 are connected in series between the first pin of the chip U1 and the positive output terminal V+, and the negative terminal of the capacitor E2 is connected to the inductor L1. The resistor R3 is connected between the fifth pin of the chip U1 and the end of the inductor L1 away from the capacitor E2; The sixth pin of the chip U1 is connected between the negative terminals of the inductor L1 and the capacitor E2; The eighth pin of the chip U1 is used as the negative output terminal W-; The ninth pin of chip U1 serves as the negative output terminal Y-. The thirteenth pin of the chip U1 is grounded; The three terminals (431) on the electrical connector (430) are respectively connected to the positive output terminal V+, the negative output terminal W- and the negative output terminal Y-.

7. The LED lamp according to claim 6, characterized in that: The rectifier circuit includes a first diode VD1, a second diode VD2, a third diode VD3, and a fourth diode VD4; The negative terminal of the first diode VD1 is connected to the positive terminal of the second diode VD2 to serve as the live wire input pin; The negative terminal of the third diode VD3 is connected to the positive terminal of the fourth diode VD4 to serve as a neutral input pin. The positive terminal of the first diode VD1 is connected to the positive terminal of the third diode VD3 to serve as a ground output pin; The negative terminal of the second diode VD2 is connected to the negative terminal of the fourth diode VD4 to serve as the positive output pin.

8. The LED lamp according to claim 6, characterized in that: The chip U1 is model TH253XS or TH253XSA.

9. The LED lamp according to claim 6, characterized in that: The inductor L1 is a freewheeling inductor.

10. The LED lamp according to claim 6, characterized in that: The capacitors E1 and E2 are filter capacitors.

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