A connector of a tunable color COB lamp strip

Abstract

The utility model discloses a kind of connectors of adjustable light color COB lamp strip, it is related to lighting decoration technical field.The connector of adjustable light color COB lamp strip, including lower base, lower base upper cover is covered with upper cover, after upper cover cover is covered, by four fastening bolts and is screwed into upper cover positioning hole after penetrating lower base bolt hole, annular groove is set up in the side middle part of lower base and upper cover, and annular groove is assembled with rubber cylinder with interference fit, rubber cylinder inner hole is ladder hole and is provided with insulating layer, its inside is wrapped with positive line, negative line and color control line, one end of three lines is fixedly installed with matrix, the other end of three lines is fixedly installed with light color device, the interference assembly of annular groove cooperation rubber cylinder on the side of lower base and upper cover, can firmly fixed insulating layer, prevent insulating layer axial sliding, while insulating layer can also protect wire body from being abraded, guarantee power supply and signal transmission basic safety, inside light color device guarantee light color signal transmission uninterrupted.

Description

Technical Field

[0001] This utility model relates to the field of lighting decoration technology, and in particular to a connector for a dimmable COB light strip. Background Technology

[0002] With the development of modern lighting technology, dimmable COB light strips have been widely used in high-end scenarios such as interior decoration, commercial lighting, and film and television sets due to their advantages such as uniform light emission, rich colors and low energy consumption. As the core connecting component of the dimmable COB light strip system, the connector undertakes the key functions of power transmission and dimming signal interaction. Its electrical connection reliability directly determines the working stability, light color adjustment accuracy and service life of the light strip.

[0003] In the existing technology, the electrical connection structure design of dimmable COB LED strip connectors has obvious defects, which has become the main bottleneck restricting the improvement of system performance. At present, the fixing methods of traditional connectors for power supply lines and signal lines are generally simple, and they mostly rely on a single soldering or plug-in structure to achieve electrical connection. Although the soldering structure can ensure tight contact in the early stage, during long-term use, the solder joints are prone to fatigue cracking or oxidation due to factors such as changes in ambient temperature and vibration, resulting in increased contact resistance. As for the plug-in structure, due to the lack of effective anti-loosening design, the pins and sockets are very prone to loosening under frequent plugging and unplugging or long-term vibration environment, resulting in poor contact.

[0004] The aforementioned unreliable electrical connection issues can trigger a series of cascading failures: In terms of power supply lines, loose contacts lead to unstable power supply to the LED strips, manifesting as brightness fluctuations, flickering, or even intermittent outages, failing to meet the technical standards for flicker-free lighting in demanding scenarios such as film and television shooting; in terms of signal transmission, poor contact in the dimming signal lines can cause signal transmission interruptions or delays, resulting in the failure of the light color adjustment function and abnormal color display, severely impacting the user experience; in addition, troubleshooting and repairing electrical connection failures requires disassembling and inspecting the connectors, and the maintenance process of traditional structures is complex, not only increasing the workload of maintenance personnel but also significantly increasing operating costs due to frequent downtime for maintenance, especially in large commercial displays or continuously operating lighting systems, where such problems are more prominent.

[0005] The lack of reliable electrical connections in existing technologies has become a key obstacle limiting the expansion of dimmable COB LED strips into high-precision and high-stability application scenarios. Utility Model Content

[0006] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a connector for dimmable COB light strips that can solve the problem of insufficient electrical connection reliability of existing connectors.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a connector for a dimmable COB light strip, including a lower base, a through bolt hole at the bottom of the lower base, an upper cover on the upper part of the lower base, and four positioning holes with internal threads on the upper cover corresponding to the bolt hole of the lower base. An annular groove is provided in the middle of the side of the lower base and the upper cover, and a rubber tube is fitted into the annular groove with an interference fit.

[0008] The inner hole of the rubber tube is a stepped hole and is fitted with an insulating layer. The insulating layer is a flexible insulating sleeve, which contains a positive wire, a negative wire, and a color control wire.

[0009] One end of the three wires is fixedly mounted with a base, which is the connecting base of the COB LED strip and is located outside the connector. The light-emitting area of ​​the base is fixedly mounted with RGB LEDs through COB packaging technology, and the surface of the base is provided with conductive pads. The positive and negative wires are respectively soldered to the power pads of the base, and the color control wire is soldered to the signal pads of the base. The other end of the three wires is fixedly mounted with a dimming color device, which is located inside the lower base.

[0010] Preferably, the dimming device includes a PCB substrate, a terminal block, a pressure plate, quick-release bolts, terminals, a chip, a communication module, and a miniature sliding rheostat; the PCB substrate is fixedly installed in the bottom of the lower base by screws, and the surface of the PCB substrate is provided with power pads, signal pads, and device mounting pads.

[0011] Preferably, the inner hole of the rubber tube is a stepped hole, the insulating layer is a flexible insulating sleeve, and the insulating layer has three independent partition cavities that are not interconnected along the axial direction. The positive electrode line, the negative electrode line and the color control line are respectively accommodated in the three partition cavities, and the outer surface of each line is in contact with the inner wall of the corresponding partition cavity.

[0012] Preferably, the two terminal blocks are symmetrically distributed along the length of the PCB substrate and fixedly installed at the front end of the PCB substrate. Both terminal blocks are electrically connected to the power pads of the PCB substrate through PCB wiring. The ends of the positive and negative wires are respectively electrically connected to the conductive areas of the two terminal blocks. The pressure plate covers the positive and negative wires. The quick-release bolts pass through the pressure plate and are screwed into the threaded holes of the terminal blocks.

[0013] Preferably, the terminal is fixedly soldered to the front center of the PCB substrate and located between the two terminal blocks. The pins of the terminal are electrically connected to the signal pads of the PCB substrate through PCB wiring. The end of the color control line is electrically connected to the terminal terminal.

[0014] Preferably, the chip is fixed to the middle of the PCB substrate by surface mount soldering and located behind the terminal block. The power pin of the chip is electrically connected to the power pad of the PCB substrate, and the signal input pin of the chip is electrically connected to the signal pad of the PCB substrate.

[0015] Preferably, the communication module is fixed to the middle of the PCB substrate by surface mount soldering and located behind the terminal block. The power pin of the communication module is electrically connected to the power pad of the PCB substrate, and the communication pin of the communication module is electrically connected to the communication pin of the chip through PCB wiring.

[0016] Preferably, the miniature sliding rheostat is fixed to the middle of the PCB substrate by surface mount soldering and located behind the terminal block. The fixed end of the miniature sliding rheostat is electrically connected to the power pad of the PCB substrate, and the adjusting end of the miniature sliding rheostat is electrically connected to the PWM adjustment pin of the chip through PCB wiring.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The connector of this dimmable COB light strip, in the dimming device, the PCB substrate provides a stable mounting carrier for each component. The terminal block, pressure plate and quick-release bolts work together to not only tightly fix the positive and negative wires to ensure stable power supply, but also facilitate subsequent cable disassembly and maintenance. The terminals can stably connect the color control line to the signal pads of the PCB substrate to ensure uninterrupted dimming signal transmission.

[0019] 2. The connector of this dimmable COB light strip has an annular groove on the side of the lower base and the upper cover that fits with the rubber sleeve for interference fit. This can firmly fix the insulation layer and prevent the insulation layer from sliding axially. At the same time, the insulation layer can also protect the wire from wear and ensure the basic safety of power supply and signal transmission.

[0020] 3. The connector chip of this adjustable COB light strip can accurately control the light color by adjusting the PWM signal. Combined with the stable power supply of the positive and negative lines and the signal transmission of the color control line, the RGB LEDs on the substrate can achieve reliable adjustable light color. The overall structure has strong adaptability and can meet the usage needs of COB light strips in indoor ceiling and other scenarios, improving the user experience and device durability. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a schematic diagram of a connector for a dimmable COB light strip according to the present invention;

[0023] Figure 2This is a schematic diagram of a connector for a dimmable COB light strip according to the present invention;

[0024] Figure 3 This is a cross-sectional schematic diagram of the connector for a dimmable COB light strip according to the present invention.

[0025] Figure 4 This is a cross-sectional schematic diagram of the connector for a dimmable COB light strip according to this utility model.

[0026] Reference numerals: 1. Lower base; 2. Upper cover; 3. Rubber tube; 4. Insulation layer; 5. RGB LED bead; 6. Base; 7. Fastening bolt; 8. Positive wire; 9. Negative wire; 10. PCB substrate; 11. Terminal block; 12. Pressure plate; 13. Quick-release bolt; 14. Terminal; 15. Chip; 16. Communication module; 17. Miniature sliding rheostat; 18. Color control line. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] Please see Figure 1-4This utility model provides a technical solution: a connector for a dimmable COB light strip, including a lower base 1, with four through bolt holes at the bottom of the lower base 1, and an upper cover 2 covering the lower base 1, with four positioning holes with internal threads corresponding to the bolt holes of the lower base. After the upper cover 2 is closed, four fastening bolts 7 pass through the bolt holes of the lower base 1 and are screwed into the positioning holes of the upper cover 2 to achieve sealing and fixing of the lower base 1 and the upper cover 2.

[0032] The four through bolt holes at the bottom of the lower base 1 provide installation channels for the fastening bolts 7. The four internally threaded positioning holes on the upper cover 2 match the external threads of the fastening bolts 7. When assembling the outer shell, first place the upper cover 2 on top of the lower base 1, ensuring that the positioning holes of the upper cover 2 are precisely aligned with the bolt holes of the lower base 1. Then, thread the four fastening bolts 7 through the bolt holes of the lower base 1 and screw them into the positioning holes of the upper cover 2. The fastening force generated by the threaded connection makes the lower base 1 and the upper cover 2 fit tightly together, thereby achieving a sealed fixation between the two. This structure can prevent external dust and moisture from entering the connector, while providing a stable installation support space for internal components and preventing internal components from shifting due to loosening of the outer shell.

[0033] An annular groove is provided in the middle of the side of the lower base 1 and the upper cover 2, and a rubber cylinder 3 is fitted into the annular groove with an interference fit. The inner hole of the rubber cylinder 3 is a stepped hole and an insulating layer 4 is passed through it. The insulating layer 4 is a flexible insulating sleeve, which wraps a positive wire 8, a negative wire 9 and a color control wire 18 inside. A base 6 is fixedly installed at one end of the three wires. The base 6 is the connecting base of the COB light strip and is located outside the connector. The light-emitting area of ​​the base 6 is fixedly installed with RGB LED beads 5 through COB packaging technology, and the surface of the base 6 is provided with conductive pads. The positive wire 8 and the negative wire 9 are respectively soldered to the power pads of the base 6, and the color control wire 18 is soldered to the signal pads of the base 6. A dimming color device is fixedly installed at the other end of the three wires, and the dimming color device is located inside the lower base 1.

[0034] The annular groove in the middle of the side of the lower base 1 and the upper cover 2 is used to fit the rubber cylinder 3. The rubber cylinder 3 is assembled into the annular groove by interference fit. The interference fit can eliminate the gap between the rubber cylinder 3 and the annular groove, preventing the rubber cylinder 3 from loosening and falling off. The inner hole of the rubber cylinder 3 is designed as a stepped hole. On the one hand, it can axially position the insulating layer 4 that passes through it, preventing the insulating layer 4 from sliding axially during use. On the other hand, it can enhance the sealing performance of the rubber cylinder 3 on the insulating layer 4. The insulating layer 4, as a flexible insulating sleeve, has the core function of physically isolating the positive wire 8, negative wire 9 and color control wire 18 inside, preventing short circuits caused by direct contact of the three wires, and protecting the outer surface of the three wires from wear. One end of the three wires is connected to the connector outside. The base 6 is fixedly connected to the COB LED strip. The conductive pads on its surface are the key structure for realizing electrical connection. The positive line 8 and negative line 9 are respectively soldered to the power pads of the base 6 to transmit working power to the RGB LED beads 5 on the base 6. The color control line 18 is soldered to the signal pads of the base 6 to transmit dimming color signals. The RGB LED beads 5 are fixed to the light-emitting area of ​​the base 6 through COB packaging technology, which can ensure the installation stability and light emission uniformity of the RGB LED beads 5. The other end of the three lines is fixedly connected to the dimming color device located inside the lower base 1, so that the dimming color device can synchronously transmit power and dimming color signals to the RGB LED beads 5 through the three lines, providing the basic conditions for the light color adjustment of the RGB LED beads 5.

[0035] The dimming device includes: PCB substrate 10, terminal block 11, pressure plate 12, quick-release screw 13, terminal 14, chip 15, communication module 16, and miniature sliding rheostat 17.

[0036] The PCB substrate 10 is fixedly installed in the bottom of the lower base 1 by screws. The surface of the PCB substrate 10 is provided with power pads, signal pads and device mounting pads. Two terminal boards 11 are symmetrically distributed along the length of the PCB substrate 10 and fixedly installed at the front end of the PCB substrate 10. Both terminal boards 11 are electrically connected to the power pads of the PCB substrate 10 through PCB wiring. The ends of the positive line 8 and the negative line 9 are electrically connected to the conductive areas of the two terminal boards 11 respectively. Two pressure plates 12 are placed above the positive line 8 and the negative line 9 respectively. Two quick-release bolts 13 are screwed into the threaded holes of the terminal boards 11 after passing through the pressure plates 12, so as to realize the clamping and fixing of the positive line 8 and the negative line 9 and the electrical conduction.

[0037] The PCB substrate 10 is fixed to the bottom of the lower base 1 with screws. This screw fixing method ensures the PCB substrate 10 is securely installed and prevents displacement during use. Power pads on the surface of the PCB substrate 10 provide power, signal pads transmit dimming signals, and device mounting pads fix the various components of the dimming device. Two terminal blocks 11 are symmetrically distributed along the length of the PCB substrate 10 and fixed to the front end of the PCB substrate 10. They are electrically connected to the power pads via PCB wiring, allowing the terminal blocks 11 to obtain power from the power pads. The ends of the positive line 8 and the negative line 9 are respectively... The two terminals 11 are connected to the conductive areas to achieve the initial electrical connection between the power line and the PCB substrate 10. To ensure a stable connection, two pressure plates 12 are placed above the positive line 8 and the negative line 9, respectively. Two quick-release screws 13 are then inserted through the pressure plates 12 and screwed into the threaded holes of the terminals 11. The tightening force of the quick-release screws 13 makes the pressure plates 12 press the positive line 8 and the negative line 9 tightly onto the conductive areas of the terminals 11. This prevents the positive line 8 and the negative line 9 from falling off and ensures stable electrical conduction of the circuit, ensuring that the power can be continuously transmitted to the subsequent components through the PCB substrate 10.

[0038] Terminal 14 is fixedly soldered to the front center of PCB substrate 10, located between two terminal blocks 11. The pins of terminal 14 are electrically connected to the signal pads of PCB substrate 10 through PCB wiring. The end of color control line 18 is electrically connected to the terminal of terminal 14. Chip 15, communication module 16 and miniature sliding rheostat 17 are all fixedly mounted in the middle of PCB substrate 10 behind terminal block 11 by surface mount soldering. Specifically: the power pin of chip 15 is electrically connected to the power pad of PCB substrate 10, the signal input pin of chip 15 is electrically connected to the signal pad of PCB substrate 10, the power pin of communication module 16 is electrically connected to the power pad of PCB substrate 10, the communication pin of communication module 16 is electrically connected to the communication pin of chip 15 through PCB wiring, the fixed end of miniature sliding rheostat 17 is electrically connected to the power pad of PCB substrate 10, and the adjustment end of miniature sliding rheostat 17 is electrically connected to the PWM adjustment pin of chip 15 through PCB wiring.

[0039] Terminal 14 is fixedly soldered to the center of the front end of PCB substrate 10 and located between two terminal blocks 11. The soldering method ensures a firm connection of terminal 14. The pins of terminal 14 are electrically connected to the signal pads through PCB wiring. The end of color control line 18 is connected to the terminal of terminal 14, enabling color control line 18 to be electrically connected to the signal pads through terminal 14, providing a channel for the transmission of dimming color signals. Chip 15, communication module 16, and miniature sliding rheostat 17 are fixed to the center of PCB substrate 10 and located behind terminal blocks 11 by surface mount soldering. Surface mount soldering reduces the space occupied by components and ensures installation stability. The power pin of chip 15 is electrically connected to the power pad to obtain operating power. The signal input pin of chip 15 is electrically connected to the signal pad, which can receive dimming color signals transmitted from the signal pad or send signals to the signal pad. The power supply pin of the communication module 16 is electrically connected to the power supply pad to obtain power. Its communication pin is electrically connected to the communication pin of the chip 15 through PCB wiring. It can receive dimming color commands sent by external devices and transmit the commands to the chip 15, or provide feedback on the working status of the connector to external devices. The fixed end of the miniature sliding rheostat 17 is electrically connected to the power supply pad, and the adjustment end is electrically connected to the PWM adjustment pin of the chip 15 through PCB wiring. When the resistance value of the miniature sliding rheostat 17 is manually adjusted, the current or voltage of the input chip 15 PWM adjustment pin can be changed. The chip 15 adjusts the duty cycle of the output PWM signal according to the change, and then transmits the corresponding control signals and power to the RGB LED bead 5 through the color control line 18 and the positive line 8 and negative line 9, so as to realize the light color adjustment of the RGB LED bead 5.

[0040] The principle of chip 15 is to receive external commands from communication module 16 or resistance change signals from micro sliding rheostat 17, and generate PWM signals after internal circuit analysis to control the output of dimming color signals. Common models include STM32F030 and TPA6132A2.

[0041] The principle of RGB LED beads 5 is based on the mixing of red, green and blue three primary colors. By receiving PWM signals with different duty cycles, the light intensity of the three primary colors is adjusted to achieve full-color changes. The use of COB packaging technology can improve the light uniformity. Common models include WS2812B and SK6812.

[0042] The principle of PCB substrate 10 is to carry conductive lines through insulating substrate, provide mounting reference and electrical connection channel for each component, and ensure stable transmission of current and signal. Common types are FR-4 double-sided or single-sided boards.

[0043] The principle of terminal 14 is to act as a transition connector to achieve a reliable electrical connection between the color control line 18 and the signal pad of the PCB substrate 10, avoiding the problem of easy detachment when the line is directly soldered. Common models include XH2.54 and PH2.0.

[0044] The principle of the communication module 16 is based on wireless protocols such as Bluetooth and WiFi. It receives dimming color commands from external devices and transmits them to the chip 15, or provides feedback on the working status of the connector. Common models include the CC2541 Bluetooth 5.0 BLE module, which is low-power and suitable for ceiling scenarios, and the ESP-01S WiFi module, which supports remote control.

[0045] The principle of the miniature sliding rheostat 17 is to change its own resistance by sliding the slider, thereby adjusting the current or voltage of the PWM regulation pin of the input chip 15. A common model is RV097.

[0046] Working principle: First, fastening bolt 7 passes through the bolt hole of the lower base 1 and is screwed into the positioning hole of the upper cover 2 to complete the sealing and fixing of the outer shell. The rubber cylinder 3 is interference-fitted into the annular groove of the lower base 1 and the upper cover 2. The insulating layer 4 passes through it and isolates the positive line 8, negative line 9, and color control line 18. One end of the three lines is connected to the corresponding pad of the external substrate 6 with RGB LED beads 5, and the other end is connected to the light and color adjustment device inside the lower base 1. The PCB substrate 10 is fixed on the lower base 1. The terminal block 11, pressure plate 12, and quick-release bolt 13 fix the positive line 8 and negative line 9 and connect them to the power pad. The terminal 14 connects the color control line 18 to the signal pad. The communication module 16 transmits external commands to the micro sliding rheostat 17 to adjust the resistance value to the chip 15. The chip 15 adjusts the PWM signal and transmits power and control signals to the RGB LED beads 5 through the three lines to realize the light and color adjustment.

[0047] In the dimming color device, the PCB substrate 10 provides a stable mounting carrier for each component. The terminal block 11, the pressure plate 12 and the quick-release screw 13 work together to not only tightly fix the positive line 8 and the negative line 9 to ensure stable power supply, but also facilitate subsequent cable disassembly and maintenance. The terminal 14 can stably connect the color control line 18 and the signal pad of the PCB substrate 10 to ensure uninterrupted dimming color signal transmission.

[0048] The annular grooves on the sides of the lower base 1 and the upper cover 2 are fitted with the rubber cylinder 3 with an interference fit, which can firmly fix the insulation layer 4 and prevent the insulation layer 4 from sliding axially. At the same time, the insulation layer 4 can also protect the wire from wear and ensure the basic safety of power supply and signal transmission.

[0049] Chip 15 can precisely control the light color by adjusting the PWM signal. Combined with the stable power supply of positive line 8 and negative line 9 and the signal transmission of color control line 18, the RGB LED beads 5 on the substrate 6 can achieve reliable and adjustable light color. The overall structure has strong adaptability and can meet the usage needs of COB light strips in indoor ceiling and other scenarios, improving the user experience and device durability.

[0050] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A connector for a dimmable COB LED strip, comprising a lower base (1), characterized in that: The bottom of the lower base (1) is provided with a through bolt hole, and the upper cover (2) is covered on the top of the lower base (1). The upper cover (2) is provided with four positioning holes with internal threads corresponding to the bolt holes of the lower base. The middle of the side of the lower base (1) and the upper cover (2) is provided with an annular groove, and the annular groove is fitted with a rubber tube (3) with an interference fit. The inner hole of the rubber tube (3) is a stepped hole and is provided with an insulating layer (4). The insulating layer (4) is a flexible insulating sleeve, which contains a positive electrode wire (8), a negative electrode wire (9) and a color control wire (18). One end of the three wires is fixedly installed with a base (6). The base (6) is the connecting base of the COB light strip and is located outside the connector. The light-emitting area of ​​the substrate (6) is fixedly installed with RGB LED beads (5) through COB packaging process, and conductive pads are provided on the surface of the substrate (6). The positive line (8) and negative line (9) are respectively soldered to the power pad of the substrate (6), and the color control line (18) is soldered to the signal pad of the substrate (6). The other end of the three lines is fixedly installed with a dimming color device, and the dimming color device is located inside the lower base (1).

2. The connector for a dimmable COB LED strip according to claim 1, characterized in that: The dimming device includes a PCB substrate (10), a terminal block (11), a pressure plate (12), a quick-release bolt (13), a terminal (14), a chip (15), a communication module (16), and a miniature sliding rheostat (17); The PCB substrate (10) is fixedly installed in the bottom of the lower base (1) by screws. The surface of the PCB substrate (10) is provided with power pads, signal pads and device mounting pads.

3. The connector for a dimmable COB LED strip according to claim 2, characterized in that: The inner hole of the rubber cylinder (3) is a stepped hole, the insulating layer (4) is a flexible insulating sleeve, and the insulating layer (4) has three independent partition cavities that are not connected to each other along the axial direction inside; The positive electrode line (8), negative electrode line (9) and color control line (18) are respectively housed in the three partition cavities, and the outer surface of each line is in contact with the inner wall of the corresponding partition cavity.

4. The connector for a dimmable COB LED strip according to claim 2, characterized in that: The two terminal blocks (11) are symmetrically distributed along the length of the PCB substrate (10) and fixedly installed at the front end of the PCB substrate (10). Both terminal blocks (11) are electrically connected to the power pads of the PCB substrate (10) through PCB wiring. The ends of the positive wire (8) and the negative wire (9) are electrically connected to the conductive areas of the two terminal blocks (11), respectively. The pressure plate (12) covers the positive wire (8) and the negative wire (9). The quick-release bolt (13) passes through the pressure plate (12) and is screwed into the threaded hole of the terminal block (11).

5. The connector for a dimmable COB LED strip according to claim 4, characterized in that: The terminal (14) is fixedly soldered to the front center of the PCB substrate (10) and located between the two terminal blocks (11); The pins of the terminal (14) are electrically connected to the signal pads of the PCB substrate (10) via PCB wiring, and the end of the color control line (18) is electrically connected to the terminal of the terminal (14).

6. The connector for a dimmable COB LED strip according to claim 5, characterized in that: The chip (15) is fixed to the middle of the PCB substrate (10) by surface mount soldering and is located behind the terminal block (11). The power pin of the chip (15) is electrically connected to the power pad of the PCB substrate (10). The signal input pin of the chip (15) is electrically connected to the signal pad of the PCB substrate (10).

7. The connector for a dimmable COB LED strip according to claim 6, characterized in that: The communication module (16) is fixed to the middle of the PCB substrate (10) by surface mount soldering and is located behind the terminal block (11). The power pin of the communication module (16) is electrically connected to the power pad of the PCB substrate (10). The communication pin of the communication module (16) is electrically connected to the communication pin of the chip (15) through PCB wiring.

8. The connector for a dimmable COB LED strip according to claim 7, characterized in that: The miniature sliding rheostat (17) is fixed to the middle of the PCB substrate (10) by patch welding and is located behind the terminal block (11); The fixed end of the miniature sliding rheostat (17) is electrically connected to the power pad of the PCB substrate (10), and the adjustment end of the miniature sliding rheostat (17) is electrically connected to the PWM adjustment pin of the chip (15) through PCB wiring.

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