Middle connecting structure of bare board LED lamp strip

Abstract

The utility model discloses a middle connecting structure of a bare board LED lamp strip, which comprises a female joint and a male joint which are arranged at two ends of the LED lamp strip, one side of the female joint is provided with an inserting part, the end part of the inserting part is provided with a plurality of inserting holes, conductive sleeves are arranged in the inserting holes, the other side of the female joint is provided with a conductive strip which is electrically connected with the conductive sleeves, and the male joint is provided with a plurality of connecting holes. The conductive strips are electrically connected with the wiring terminals of the LED lamp strip respectively; a slot is formed in one side of the male connector, a contact pin is arranged in the slot, and the contact pin extends out of the other side of the male connector and is electrically connected with the wiring terminal; wherein the female joint of one LED lamp strip is inserted into the slot of the male joint of the other LED lamp strip through the inserting part of the female joint, and a plurality of contact pins in the slot of the male joint are respectively inserted into a plurality of jacks of the female joint and are electrically connected with the conductive sleeve. According to the utility model, the contact pins and the jacks are simply aligned, the installation is convenient, and the slots can protect the contact pins and prevent the contact pins from bending and deforming.

Description

Technical Field

[0001] The utility model relates to an LED lamp, and particularly discloses a middle connection structure of a bare plate LED lamp belt. Background Art

[0002] The bare board LED light strip includes a circuit board and LED lamp beads welded on the circuit board. Compared with the traditional LED light strip, the bare board LED light strip has the advantages of small size, easy bending and low price because the circuit board is not wrapped with an outer skin. In recent years, it has been widely used in low-voltage occasions. The intermediate connection structure of the existing bare board LED light strip includes a number of pins and sockets welded on both ends of the circuit board. When splicing, it is necessary to insert the pins at one end of one LED light strip into the sockets at one end of the other LED light strip. Due to the small diameter and large number of pins and sockets, it is not easy to align during the installation process, and the pins are easy to bend or even break during transportation or plugging, so further improvement is needed. Utility Model Content

[0003] Based on this, it is necessary to provide an intermediate connection structure for a bare board LED light strip that is easy to align, simple to use, and has pins that are not easily bent or deformed, in order to address the problems of the prior art.

[0004] To solve the problems of the prior art, the utility model discloses an intermediate connection structure of a bare board LED light strip, comprising two LED light strips, wherein the LED light strips comprise a flexible circuit board, LED lamp beads welded on the circuit board and a plurality of wiring terminals arranged at both ends of the circuit board, and further comprise a female connector and a male connector, wherein a plug-in portion is arranged on one side of the female connector, a plurality of sockets corresponding to the wiring terminals are arranged on the end of the plug-in portion, a conductive sleeve is installed in the socket, a plurality of conductive strips electrically connected to the conductive sleeves are arranged on the other side of the female connector, and the conductive strips are electrically connected to the plurality of wiring terminals respectively; a slot is arranged on one side of the male connector, a plurality of pins corresponding to the plurality of sockets are arranged in the slot, the pins extend from the other side of the male connector and are electrically connected to the wiring terminals; the female connector of one LED light strip is inserted into the slot of the male connector of the other LED light strip through its plug-in portion, and a plurality of pins in the slot of the male connector are respectively inserted into the plurality of sockets of the female connector and are electrically connected to the conductive sleeve.

[0005] The beneficial effects of the utility model are as follows: since the female connector and the male connector are respectively welded at both ends of the bare board LED light strip, the female connector is provided with a plug-in portion at one end, a socket is provided on the plug-in portion, a conductive sleeve is installed in the socket, and a conductive strip electrically connected to the conductive sleeve is provided at the other end, and the conductive strip is electrically connected to the wiring terminal at one end of the LED light strip circuit board; a slot is provided on one side of the male connector, a pin is provided in the slot, and the other end of the pin extends from the other side of the male connector and is electrically connected to the wiring terminal at the other end of the LED light strip circuit board; the installation process only requires aligning the plug-in portion of the female connector and the slot of the male connector, the alignment of the pin and the socket is simple, and the installation is convenient, and the slot can protect the pin to prevent the pin from bending and deforming due to external force.

[0006] As a further improvement of the present utility model: a reinforcement part is provided at the connection between the conductive strip of the female connector and the wiring terminal, and a reinforcement part is also provided at the connection between the plug pin of the male connector and the wiring terminal; the thickness of the reinforcement part close to one end of the female connector or the male connector is greater than the thickness away from one end of the female connector or the male connector; the reinforcement part 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 The utility model is a schematic diagram of the assembly structure of the bare board LED light strip and the male and female connectors.

[0008] Figure 2 This is a schematic diagram of the assembly of two LED light strips of the utility model.

[0009] Figure 3 This is a schematic diagram of two LED light strips after assembly according to the utility model.

[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 utility model.

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

[0014] In order to further understand the features, technical means, specific purposes and functions of the utility model, the utility model 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 utility model (including but not limited to up, down, left, right, inside, outside, etc.) is a definition based on the position state of the components shown in the accompanying drawings. 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 utility model; those skilled in the art can understand that when the placement direction of the components in the view changes, the description of the positional relationship may change, but the mechanical structure of the components has not changed essentially.

[0015] refer to Figure 1 The intermediate connection structure of the bare board LED light strip comprises two LED light strips 1 and a female connector 2 and a male connector 3 respectively arranged at two ends of the LED light strips.

[0016] refer to Figure 1 The LED light strip 1 includes a flexible circuit board 11, LED lamp beads 12 soldered on the circuit board 11, and a plurality of connection terminals 13 arranged at both ends of the circuit board 11. A power circuit and a signal circuit are arranged inside the circuit board 11, and the power circuit is covered with an insulating layer. The insulating layer is provided with solder pads for exposing the circuits at positions corresponding to the power circuit and the signal circuit. The solder pads are surfacing with solder paste higher than the surface of the circuit board, and the solder paste constitutes the connection terminals 13. One end of the circuit board 11 may include a plurality of connection terminals 13, of which 2, 3, or 5 are common.

[0017] refer to Figure 4 and Figure 6 The female connector 2 includes a square body 20, a square plug-in portion 21 is provided on one side of the body 20, a plurality of plug-in holes 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 plug-in hole 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 thereof is to process an inner hole at one end of a metal rod to form the conductive sleeve 23, and the other unprocessed end constitutes the conductive strip 24, refer to Figure 4. 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 as the tail end does not need to be protected by 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 respectively electrically connected to the power circuit and the signal circuit of the circuit board 11. A reinforcing portion 4 is also provided at the connection between the conductive strip 24 and the wiring terminal 13. The reinforcing portion 4 is a UV glue coated on the circuit board 11, and the UV glue can become hard after being irradiated with ultraviolet rays after coating. 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, and the reinforcing portion 4 can prevent the solder joints from falling off. Since the connection terminal 13 is located at the end of the circuit board 11, and the end of the circuit board 11 is close to the female connector 2, stress concentration is likely to occur there, so the reinforcing portion 4 can be further improved to have a thickness at the end close to the female connector 2 greater than the thickness at the end away from the female connector 2. In this way, the flexibility of the circuit board 11 can be maintained, and the protection of the solder joints can be enhanced.

[0018] 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 sockets 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 the spaced positions thereof 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 the signal circuit of the circuit board 11. A reinforcement portion 4 is also provided at the connection between the pin 32 and the wiring terminal 13, and the reinforcement portion 4 has the same structure, material, function and further improvement scheme as the reinforcement portion 4 at the female connector end.

[0019] refer to Figures 1 to 5 The installation method of the utility model is: insert the female connector 2 of one LED light strip 1 into the slot 31 of the male connector 3 of another LED light strip through its plug-in portion 21, and insert the plurality of pins 32 in the male connector slot 31 into the plurality of jacks 22 of the female connector plug-in portion 21 respectively until the pins 32 are electrically connected to the conductive sleeve 23.

[0020] refer to Figure 4As a further improvement of the utility model: the circuit board 11 is coated with waterproof glue 5 covering the LED lamp beads 12, and the plug-in portion 21 of the female connector 2 is installed with a sealing ring 6 that matches the side wall of the slot 31 of the male connector 3, and the sealing ring 6 is interference-fitted with the slot 31. In this way, the utility model has a waterproof effect.

[0021] refer to Figures 4 to 7 As a further improvement of the present invention: the edge of one side of the plug-in portion 21 of the female connector 2 is provided with an asymmetric first chamfer 25, and the slot 31 of the male connector 3 is provided with a second chamfer 33 that matches the first chamfer 25. This can prevent the male connector from being reversely connected to the female connector, making it more convenient to connect the LED light strip.

[0022] The utility model has female connectors and male connectors welded to both ends of a bare board LED light strip, respectively; a plug-in portion is provided at one end of the female connector, a socket is provided on the plug-in portion, a conductive sleeve is installed in the socket, a conductive strip electrically connected to the conductive sleeve is provided at the other end, and the conductive strip is electrically connected to a terminal at one end of a circuit board of the LED light strip; a slot is provided at one side of the male connector, a pin is provided in the slot, and the other end of the pin extends from the other side of the male connector and is electrically connected to the terminal at the other end of the circuit board of the LED light strip; during the installation process, it is only necessary to align the plug-in portion of the female connector with the slot of the male connector, the alignment of the pin and the socket is simple, and the installation is convenient, and the slot can protect the pin to prevent the pin from bending and deforming due to external force.

[0023] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. The intermediate connection structure of a bare board LED light strip comprises two LED light strips, wherein the LED light strip comprises a flexible 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: It also includes a female connector and a male connector, wherein a plug-in portion is provided on one side of the female connector, and a plurality of sockets corresponding to the wiring terminals are provided at the end of the plug-in portion, and a conductive sleeve is installed in the socket, and a plurality of conductive strips electrically connected to the conductive sleeves are provided on the other side of the female connector, and the conductive strips are electrically connected to the plurality of wiring terminals respectively; a slot is provided on one side of the male connector, and a plurality of pins corresponding to the plurality of sockets are provided in the slot, and the pins extend from the other side of the male connector and are electrically connected to the wiring terminals; the female connector of one LED light strip is inserted into the slot of the male connector of another LED light strip through its plug-in portion, and the plurality of pins in the slot of the male connector are respectively inserted into the plurality of sockets of the female connector and are electrically connected to the conductive sleeves.

2. The intermediate connection structure of the bare board LED light strip according to claim 1, characterized in that: A reinforcing portion is provided at the connection between the conductive strip of the female connector and the wiring terminal, and a reinforcing portion is also provided at the connection between the plug pin of the male connector and the wiring terminal.

3. The intermediate 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 female connector or the male connector is greater than the thickness at one end away from the female connector or the male connector.

4. The intermediate 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 intermediate 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 intermediate 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 intermediate 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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