Power supply connecting structure of bare board LED lamp strip

Abstract

The utility model discloses a power supply connecting structure of a bare board LED lamp strip, which comprises a bare board LED lamp strip and a power supply connector, the bare board LED lamp strip comprises a circuit board and a plurality of wiring terminals arranged at two ends of the circuit board, one end of the power supply connector is connected with a plurality of power lines, the other end of the power supply connector is provided with a female connector, the female connector comprises an inserting part, and the inserting part is connected with the power supply connector. A plurality of wiring terminals are arranged on the circuit board, a plurality of jacks corresponding to the wiring terminals are arranged at the end part of the plugging part, conductive sleeves electrically connected with the plurality of power lines are arranged in the jacks, a male joint is arranged at one end of the circuit board, a slot is arranged on the male joint, and a contact pin electrically connected with the wiring terminals is arranged in the slot. According to the utility model, only the plugging part of the female joint needs to be inserted into the slot of the male joint, the contact pin and the jack can be automatically aligned, the installation is convenient, and the slot can protect the contact pin and prevent the contact pin from bending and deforming due to external force.

Description

Technical Field

[0001] The utility model relates to an LED lamp, and particularly discloses a power supply connection structure of a bare board LED light strip. Background Art

[0002] Bare-board LED light strips consist of a circuit board and LED beads soldered to it. Compared to traditional LED light strips, bare-board LED light strips, due to the lack of a protective outer casing, offer advantages such as smaller size, greater flexibility, and lower price. They have been widely used in low-voltage applications in recent years. However, connecting existing bare-board LED light strips to the power supply requires soldering the power cables to the circuit board terminals at the installation site, requiring specialized personnel and equipment, making installation very inconvenient. Utility Model Content

[0003] Based on this, it is necessary to provide a power connection structure for a bare board LED light strip that is easy to operate in order to solve the existing technical problems.

[0004] In order to solve the problems of the existing technology, the utility model discloses a power connection structure of a bare board LED light strip, including a bare board LED light strip and a power connector. The bare board LED light strip includes a circuit board, LED lamp beads soldered on the circuit board and a number of connection terminals arranged at both ends of the circuit board. One end of the power connector is connected to a number of power lines, and the other end is provided with a female connector. The female connector includes a plug-in portion, and the end of the plug-in portion is provided with a number of sockets corresponding to the connection terminals. Conductive sleeves are installed in the sockets, and the conductive sleeves are electrically connected to the number of power lines respectively; a male connector is provided at one end of the circuit board, and a slot matching the plug-in portion is provided on one side of the male connector. The slot is provided with a number of pins corresponding to the number of sockets, and the pins extend from the other side of the male connector and are electrically connected to the connection terminals respectively.

[0005] The beneficial effects of the present invention are as follows: since a power cord is provided at one end of the power connector and a female connector is provided at the other end, a male connector is welded to one end of the bare board LED light strip; the female connector is provided with a plug-in portion, a jack is provided on the plug-in portion, and a conductive sleeve electrically connected to the power cord is installed in the jack; the male connector is provided with a slot, and a pin electrically connected to the circuit board is provided in the slot; the installation process only requires inserting the plug-in portion of the female connector into the slot of the male connector, the pin and the jack can be automatically aligned, and the installation is convenient, and the slot can protect the pin and prevent the pin from bending and deforming due to external force.

[0006] As a further improvement of the present invention: a reinforcement portion is provided at the connection between the conductive strip of the female connector and the wiring terminal, and a reinforcement portion is also provided at the connection between the pin of the male connector and the wiring terminal; the thickness of the reinforcement portion close to the end of the female connector or the male connector is greater than the thickness away from the end of the female connector or the male connector; the reinforcement portion is coated with UV glue. The circuit board is coated with waterproof glue covering the LED lamp beads, and a sealing ring that cooperates with the side wall of the slot is installed on the plug-in part of the female connector. A first chamfer is provided on one side of the plug-in part of the female connector, and a second chamfer that cooperates with the first chamfer is provided in the slot of the male connector. The end of the conductive sleeve is retracted into the socket of the plug-in part. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic diagram of the assembly structure of the bare board LED light strip and the male and female connectors of the utility model.

[0008] Figure 2 This is a schematic diagram of the assembly of the bare board LED light strip and the power connector of the utility model.

[0009] Figure 3 This is a schematic diagram of the bare board LED light strip and power connector assembled in the present invention.

[0010] Figure 4 for Figure 3 Schematic diagram of the structure of the AA section.

[0011] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0012] Figure 6 It is a structural schematic diagram of the female connector of the present utility model.

[0013] Figure 7 It is a structural schematic diagram of the male connector of the present utility model.

[0014] Figure 8 This is a schematic diagram of the structure of the power connector of the utility model. DETAILED DESCRIPTION

[0015] In order to further understand the features, technical means, specific purposes and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. The description of the positional relationship between the components of the present invention (including but not limited to up, down, left, right, inside, outside, etc.) is based on the position state of the components shown in the accompanying drawings as a reference. Its purpose is to facilitate the description and understanding of the mechanical structure of the components and does not represent an absolute limitation on the scope of protection of the present invention. Those skilled in the art will understand that when the placement direction of the components in the drawing changes, the description of the positional relationship may change, but the mechanical structure of the components does not change in essence.

[0016] refer to Figure 1 and Figure 2 A power connection structure for a bare-board LED light strip includes a bare-board LED light strip 1 and a power connector 4. A female connector 2 and a male connector 3 are installed at both ends of the bare-board LED light strip 1. One end of the power connector 4 is connected to a plurality of power lines 41, and the other end is installed with the female connector 2.

[0017] refer to Figure 1 The bare board LED light strip 1 includes a flexible circuit board 11, LED lamp beads 12 soldered to the circuit board 11, and terminal blocks 13 arranged at both ends of the circuit board 11. A power circuit and a signal circuit are arranged inside the circuit board 11. The power circuit is covered with an insulating layer. Solder pads exposing the circuits are provided on the insulating layer at positions corresponding to the power circuit and the signal circuit. Solder paste is deposited on the solder pads to a level higher than the surface of the circuit board 11. The solder paste constitutes the terminal blocks 13. One end of the circuit board 11 may include multiple terminal blocks 13, of which 2, 3, or 5 are common.

[0018] refer to Figure 4 and Figure 6 The female connector 2 installed on the bare board LED light strip 1 includes a square body 20, a square plug-in portion 21 is provided on one side of the body 20, and a plurality of sockets 22 corresponding to the wiring terminals 13 are provided at the end of the plug-in portion 21, and a conductive sleeve 23 is installed in the socket 22; a plurality of conductive strips 24 electrically connected to the conductive sleeve 23 are provided on the other side of the body 20, and the spacing positions of the plurality of conductive strips 24 correspond to the plurality of wiring terminals 23 on the circuit board 11. Preferably, the conductive sleeve 23 and the conductive strip 24 are an integral structure, and the manufacturing method is to process an inner hole at one end of the metal rod to form the conductive sleeve 23, and the other unprocessed end constitutes the conductive strip 24, refer to Figure 4 and Figure 5. Preferably, the end of the conductive sleeve 23 is retracted into the socket 22 of the plug-in portion 21, so that the conductive sleeve 23 is not easily short-circuited or leaked due to contact with an external conductor, so that the female connector 2 at the tail end of the light strip does not need to be sealed with a tail plug. The several conductive strips 24 of the female connector 2 are respectively welded to the several wiring terminals 23 at one end of the circuit board 11, so that the several conductive sleeves 23 are electrically connected to the power circuit and signal circuit of the circuit board 11 respectively. A reinforcing part 4 is also provided at the connection between the conductive strip 24 and the wiring terminal 13. The reinforcing part 4 is a UV glue coated on the circuit board 11. After the UV glue is coated, it becomes hard after being irradiated by ultraviolet rays. Since the circuit board 11 is flexible, the solder joints connecting the conductive strip 24 and the wiring terminal 13 are easy to fall off during repeated bending. The reinforcing part 4 can prevent the solder joints from falling off. Because the connection terminals 13 are located at the ends of the circuit board 11, which are close to the female connector 2 and prone to stress concentration, the reinforcement portion 4 can be further improved to be thicker at the end close to the female connector 2 than at the end away from the female connector 2. This maintains the flexibility of the circuit board 11 while also enhancing the protection of the solder joints.

[0019] refer to Figure 4 and Figure 7 . The male connector 3 includes a body 30, and a slot 31 is provided on the end face of one side of the body 30. A plurality of pins 32 corresponding to the plurality of jacks 22 of the female connector 2 are provided in the slot 31, and the outer diameter of the pins 32 is interference fit with the inner diameter of the conductive sleeve 23 of the female connector. The other ends of the plurality of pins 32 extend from the other side of the body 30, and their spaced positions correspond to the plurality of wiring terminals 13 on the circuit board 11. The plurality of pins 32 are respectively welded to the plurality of wiring terminals 13 at the other end of the circuit board 11, so that the plurality of pins 32 are respectively electrically connected to the power circuit and signal circuit of the circuit board 11. A reinforcement part 4 is also provided at the connection between the pin 32 and the wiring terminal 13, and the reinforcement part 4 has the same structure, material and function as the reinforcement part 4 at the female connector end.

[0020] refer to Figure 8 The female connector 2 mounted on the power connector 4 has a body 20 integrally formed with the power connector 4 through injection molding, and the conductive strips 24 of the female connector 2 are electrically connected to the power lines 41 .

[0021] refer to Figures 2 to 5When connecting the power connector 4 to the bare-board LED light strip 1, simply insert its plug portion 21 into the slot 31 of the male connector 3 of the bare-board LED light strip. Because the plug portion 21 and slot 31 are mating structures, the several pins 32 in the male connector slot 31 automatically align with the several sockets 22 on the female connector and are inserted into the corresponding sockets 32 to electrically connect with the conductive sleeve 23. When the bare-board LED light strip needs to be extended, the male connector 3 of another bare-board LED light strip can be connected to the female connector 2 at the end of the bare-board LED light strip. When the bare-board LED light strip does not need to be extended, because the end of the conductive sleeve 23 retracts into the socket 22 of the plug portion 21, the female connector 2 does not need to be sealed with a tail plug or other protective cover. Furthermore, because the end of the power connector 4 is configured as a female connector 2, even if the power connector 4 is pre-connected to the power source during installation, the female connector 2 is unlikely to short-circuit or leak due to contact with foreign objects, thus eliminating the risk of electric shock or fire.

[0022] refer to Figures 3 to 5 As a further improvement to the present invention, the circuit board 11 is coated with a waterproof adhesive 15 that covers the LED lamp beads 12, and the plug-in portion 21 of the female connector 2 is mounted with a sealing ring 16 that cooperates with the side wall of the slot 31 of the male connector 3. The sealing ring 16 has an interference fit with the slot 31. This ensures that the present invention has a waterproof effect.

[0023] refer to Figures 4 to 8 As a further improvement to the present invention, the edge of the female connector 2's plug-in portion 21 is provided with an asymmetrical first chamfer 25, and the slot 31 of the male connector 3 is provided with a second chamfer 33 that mates with the first chamfer 25. This prevents the male and female connectors from being reversed, making it easier to connect LED light strips.

[0024] The utility model has a power cord at one end of the power connector and a female connector at the other end, and a male connector is welded to one end of the bare board LED light strip. The female connector is provided with a plug-in portion, a jack is provided on the plug-in portion, and a conductive sleeve electrically connected to the power cord is installed in the jack; the male connector is provided with a slot, and a pin electrically connected to the circuit board is provided in the slot; the installation process only requires inserting the plug-in portion of the female connector into the slot of the male connector, the pin and the jack can be automatically aligned, and the installation is convenient. The slot can protect the pin and prevent the pin from bending and deformation due to external force.

[0025] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A power connection structure of a bare board LED light strip, comprising a bare board LED light strip and a power connector, wherein the bare board LED light strip comprises a circuit board, LED lamp beads welded on the circuit board, and a plurality of connection terminals arranged at both ends of the circuit board, characterized in that: One end of the power connector is connected to several power lines, and the other end is provided with a female connector, the female connector includes a plug-in portion, the end of the plug-in portion is provided with several sockets corresponding to the wiring terminals, conductive sleeves are installed in the sockets, and the conductive sleeves are electrically connected to the several power lines respectively; one end of the circuit board is provided with a male connector, one side of the male connector is provided with a slot matching the plug-in portion, and the slot is provided with several pins corresponding to the several sockets, and the pins extend from the other side of the male connector and are electrically connected to the wiring terminals respectively.

2. The power connection structure of the bare board LED light strip according to claim 1, characterized in that: A reinforcement portion is provided at the connection between the pin of the male connector and the wiring terminal.

3. The power connection structure of the bare board LED light strip according to claim 2, characterized in that: The thickness of the reinforcing portion at one end close to the male connector is greater than the thickness at one end away from the male connector.

4. The power connection structure of the bare board LED light strip according to claim 3, characterized in that: The reinforcing part is coated with UV glue.

5. The power connection structure of the bare board LED light strip according to claim 1, characterized in that: The circuit board is coated with waterproof glue covering the LED lamp beads, and the plug-in part of the female connector is equipped with a sealing ring that matches the side wall of the slot.

6. The power connection structure of the bare board LED light strip according to claim 1, characterized in that: A first chamfer is provided on one side of the plug-in portion of the female connector, and a second chamfer matching the first chamfer is provided in the slot of the male connector.

7. The power connection structure of the bare board LED light strip according to claim 1, characterized in that: The end of the conductive sleeve is retracted into the insertion hole of the plug-in part.

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