Corner connector for LED lamp strip

Abstract

The utility model discloses an LED lamp strip corner connector which comprises a bottom shell, two lamp strip connecting grooves with a preset included angle and a containing groove connected between the two lamp strip connecting grooves are formed in the bottom shell; the conductive connecting assembly is assembled in the containing groove and provided with two sets of conductive elastic pieces extending into the two lamp strip connecting grooves. Wherein the lamp strip connecting groove is internally provided with a lamp strip inserting guide part extending out of the outer side wall of the containing groove, and the conductive elastic piece is connected to the lamp strip inserting guide part; the bottom shell is rotationally connected with a first cover plate capable of covering the lamp strip connecting groove in a buckled mode, and a lamp strip profiling cavity is defined by the first cover plate and the lamp strip connecting groove. According to the scheme, by improving the structure of the corner connector, the stability of mechanical connection between the corner connector and the LED lamp strip and the stability and reliability of electric connection between the corner connector and the LED lamp strip can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, specifically relating to an LED light strip corner connector. Background Technology

[0002] LED light strips are long, strip-shaped products formed by assembling LEDs onto a strip-shaped FPC or PCB rigid board. LED light strips can be cut and spliced ​​arbitrarily according to the needs of the construction site and are widely used in home decoration, advertising, commercial decoration, and commercial exterior wall decoration. When encountering corners during installation, existing LED light strips are typically laid at a predetermined angle and then electrically connected at the corner. The traditional method is to solder the two LED light strips together with wires, but this soldering method is inconvenient and inefficient for on-site construction.

[0003] To address the issues associated with soldering, corner connectors have been developed. These connectors feature an interface for connecting to LED strips, incorporating conductive springs. These springs abut against conductive contacts (pads) in the LED strips to establish electrical connection. Since corner connectors need to balance electrical connection and LED strip fixation, improving the stability of the mechanical connection between the corner connector and the LED strip, as well as the stability and reliability of the electrical connection, is a crucial issue that needs to be addressed. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides an LED light strip corner connector. By improving the structure of the corner connector, the problem of how to improve the stability of the mechanical connection between the corner connector and the LED light strip, as well as the stability and reliability of the electrical connection, needs to be solved.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An LED strip corner connector, comprising:

[0007] The bottom shell has two LED strip connecting slots with a predetermined included angle and a receiving slot connecting the two LED strip connecting slots.

[0008] A conductive connection assembly, which is fitted in the receiving groove and has two sets of conductive springs extending into the two light strip connection grooves;

[0009] The light strip connecting groove has a light strip insertion guide extending from the outer wall of the receiving groove, and the conductive spring is connected to the light strip insertion guide; a first cover plate that can snap onto the light strip connecting groove is rotatably connected to the bottom shell, and the first cover plate and the light strip connecting groove surround to form a light strip contour cavity.

[0010] In a preferred embodiment, the first side edge of the first cover plate is rotatably connected to the first side edge of the light strip connecting groove via a first folding connecting part. The second side edge of the first cover plate opposite to its first side is provided with a first snap-fit ​​part, and the outer wall of the second side of the light strip connecting groove opposite to its first side is provided with a second snap-fit ​​part that cooperates with the first snap-fit ​​part.

[0011] In a preferred embodiment, the second side edge of the first cover plate is further provided with a folding lever.

[0012] In a preferred embodiment, a conical pressing part is connected to the surface of the first cover plate facing the light strip connecting groove.

[0013] In a preferred embodiment, there are multiple conical pressing sections, and these multiple conical pressing sections are arranged in an array of M rows × N columns, where M and N are integers greater than or equal to 2.

[0014] In a preferred embodiment, a cover guide post is connected to the surface of the first cover plate facing the light strip connecting groove on the side near the first folding connecting part, and a cover guide hole corresponding to the cover guide post is opened on the inner wall of the first side of the light strip connecting groove.

[0015] In a preferred embodiment, the upper surface of the light strip insertion guide is provided with a spring positioning groove, the conductive spring is embedded in the spring positioning groove, and the conductive spring has a bent protrusion protruding from the upper surface of the light strip insertion guide.

[0016] In a preferred embodiment, the predetermined included angle is 30°, 45°, 60°, 90°, 120°, 135°, or 150°.

[0017] In a preferred embodiment, the conductive connection assembly further includes a PCB board and an insulating protective shell covering the PCB board. The insulating protective shell has a shape adapted to the receiving groove and is assembled in the receiving groove. The two sets of conductive springs are electrically connected to the PCB board and extend from the side of the insulating protective shell.

[0018] In a preferred embodiment, a second cover plate is rotatably connected to the bottom shell, which can snap onto the receiving groove. When the second cover plate is closed onto the receiving groove, it presses against and fixes the insulating protective shell.

[0019] The first side edge of the second cover plate is rotatably connected to the first side edge of the receiving groove via the second folding connection part. The second side edge of the second cover plate opposite to its first side is provided with a third snap-fit ​​part, and the inner side wall of the receiving groove opposite to its first side is provided with a fourth snap-fit ​​part that cooperates with the third snap-fit ​​part.

[0020] The LED strip corner connector provided in this embodiment includes a bottom shell and a conductive connection component. The bottom shell has two strip connection slots and a receiving slot connected between the two strip connection slots. The strip connection slots have strip insertion guides extending from the outer side wall of the receiving slot. The conductive connection component is assembled in the receiving slot and has conductive springs extending and connected to the strip insertion guides. A first cover plate that can snap onto the strip connection slots is rotatably connected to the bottom shell. The first cover plate and the strip connection slots enclose a strip contour cavity. Based on the above structure, the LED strip corner connector has two main features: First, the strip connection slot is equipped with a first cover plate that allows for rotatable connection and snap-fit, facilitating quick and easy connection of the LED strip to the corner connector and improving on-site construction efficiency. Second, the first cover plate and the strip connection slot together form a strip-shaped cavity, and the strip connection slot has a strip insertion guide. After the LED strip is inserted into the strip connection slot, it can be tightly fixed, improving the stability of the mechanical connection between the corner connector and the LED strip and preventing the LED strip from shaking or misaligning. This also improves the stability and reliability of the electrical connection between the corner connector and the LED strip. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the corner connector in the open state according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the corner connector in the closed state according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the bottom shell structure in an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the conductive connection component in an embodiment of the present utility model;

[0025] Figure 5 This is an exploded structural diagram of the conductive connection component in an embodiment of this utility model;

[0026] Figure 6 This is a structural diagram illustrating the interconnection between the LED light strip and the corner connector in an embodiment of this utility model;

[0027] Figure 7This is a schematic diagram of the LED light strip in an embodiment of this utility model. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the drawings. The embodiments of this utility model shown in and described with reference to the drawings are merely exemplary, and this utility model is not limited to these embodiments.

[0029] It should be noted that the same or similar reference numerals in the accompanying drawings of the embodiments of this utility model correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0030] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0031] This utility model embodiment provides an LED strip corner connector, see reference. Figures 1 to 5 The LED strip corner connector mainly includes a base shell 1 and a conductive connection assembly 2. The base shell 1 has two strip connection slots 11 with a predetermined angle and a receiving slot 12 connecting the two strip connection slots 11. The conductive connection assembly 2 is assembled in the receiving slot 12 and has two sets of conductive springs 21 extending into the two strip connection slots 11.

[0032] The light strip connecting groove 11 has a light strip insertion guide 13 extending from the outer wall of the receiving groove 12, and the conductive spring 21 is connected to the light strip insertion guide 13. A first cover plate 3 that can snap onto the light strip connecting groove 11 is rotatably connected to the bottom shell 1, and the first cover plate 3 and the light strip connecting groove 11 form a light strip contour cavity.

[0033] The predetermined included angle can be set to 30°, 45°, 60°, 90°, 120°, 135°, or 150°. In this embodiment, as shown in the accompanying drawings, the predetermined included angle is 90°, that is, the axial directions of the two LED strip connecting slots 11 are perpendicular to each other, and the overall appearance of the LED strip corner connector is L-shaped.

[0034] In this embodiment, as Figures 1 to 3 As shown, the first side edge of the first cover plate 3 is rotatably connected to the first side edge of the light strip connecting groove 11 via the first folding connecting part 31. A first latching part 32 is provided on the second side edge of the first cover plate 3 opposite to its first side, and a second latching part 111 is provided on the outer wall of the second side of the light strip connecting groove 11 opposite to its first side, which cooperates with the first latching part 32. By interlocking the first latching part 32 and the second latching part 111, the first cover plate 3 can be latched onto the light strip connecting groove 11.

[0035] In this embodiment, a spring positioning groove 131 is provided on the upper surface of the light strip insertion guide 13, and the conductive spring 21 is embedded in the spring positioning groove 131. The conductive spring 21 has a bent protrusion 211 protruding from the upper surface of the light strip insertion guide 13.

[0036] In this embodiment, see Figure 4 and Figure 5 The conductive connection assembly 2 mainly includes the conductive spring 21, the PCB board 22, and the insulating protective shell 23 covering the PCB board 22. The insulating protective shell 23 has a shape adapted to the receiving groove 12 and is assembled in the receiving groove 12. The two sets of conductive springs 21 are electrically connected to the PCB board 22 and extend from the side of the insulating protective shell 23.

[0037] The insulating protective shell 23 is formed by injection molding to cover the PCB board 22. Specifically, two sets of conductive springs 21 are first soldered to the PCB board 22, and then the insulating protective shell 23 covering the PCB board 22 is prepared by injection molding. The insulating protective shell 23 is made to have a shape that matches the receiving groove 12 by setting a corresponding injection mold.

[0038] Further, see Figures 1 to 3A second cover plate 4 is rotatably connected to the bottom shell 1, capable of snapping onto the receiving groove 12. When the second cover plate 4 is closed onto the receiving groove 12, it presses and fixes the insulating protective shell 23. Specifically, in this embodiment, the first side edge of the second cover plate 4 is rotatably connected to the first side edge of the receiving groove 12 via a second folding connecting part 41. A third snapping part 42 is provided on the second side edge of the second cover plate 4 opposite to its first side. A fourth snapping part 121 is provided on the inner side wall of the receiving groove 12 opposite to its first side, which cooperates with the third snapping part 42. By the mutual snapping of the third snapping part 42 and the fourth snapping part 121, the second cover plate 4 can be snapped onto the receiving groove 12, thereby fixing the conductive connection assembly 2.

[0039] In this embodiment, see Figure 6 and Figure 7 The LED light strip 5 to be connected includes a housing 51 and a light strip circuit board 52. The housing 51 is provided with a receiving cavity 53. The light strip circuit board 52 is assembled in the receiving cavity 53. The light strip circuit board 52 is encapsulated with LED lights 54 and is provided with solder pads 55.

[0040] The bottom surface of the outer casing 51 is generally flat, while the top surface of the outer casing 51 is arc-shaped. Therefore, in this embodiment, as... Figure 3 As shown, the inner wall of the LED strip connecting groove 11 has an arc-shaped surface, and the first cover plate 3 is flat. When the first cover plate 3 is closed on the LED strip connecting groove 11, the first cover plate 3 and the LED strip connecting groove 11 form a contoured cavity that is compatible with the LED strip 4.

[0041] As described above, the LED strip corner connector is used as follows: First, the first cover plate 3 is opened to expose the strip connection groove 11; then, the LED strip 5 to be connected is placed into the strip connection groove 11, and the strip insertion guide 13 is inserted into the receiving cavity 53 in the outer shell 51 of the LED strip 5, so that the bent protrusion 211 of the conductive spring 21 connected to the strip insertion guide 13 abuts against the solder pad 55 on the strip circuit board 52; finally, the first cover plate 3 is snapped onto the strip connection groove 11, and the LED strip 5 is pressed downward, so that the conductive spring 21 and the solder pad 55 are more tightly connected.

[0042] Based on the structure of the corner connector described above: on the one hand, the LED strip connection groove 11 is provided with a first cover plate 3 that can be rotated and snapped shut, which can conveniently and quickly connect the LED strip 5 to the corner connector, improving on-site construction efficiency; on the other hand, the first cover plate 3 and the LED strip connection groove 11 form a LED strip contour cavity, and the LED strip connection groove 11 has an LED strip insertion guide part 13. After the LED strip 5 is inserted into the LED strip connection groove 11, the LED strip 5 can be tightly fixed, which improves the stability of the mechanical connection between the corner connector and the LED strip 5, and can prevent the LED strip 5 from shaking or misaligning, thereby also improving the stability and reliability of the electrical connection between the corner connector and the LED strip 5.

[0043] As a preferred embodiment, in this embodiment, the second side edge of the first cover plate 3 is further provided with a folding lever part 33. This folding lever part 33 allows the first cover plate 3 to be folded open more easily from the light strip connecting groove 11, improving work efficiency. It should be noted that the second cover plate 4, corresponding to the receiving groove 12, does not have a corresponding folding lever part on its edge in this embodiment, since it does not require frequent opening and closing after assembling the conductive connection component 2. Of course, in some optional embodiments, the second cover plate 4 may also have a corresponding folding lever part.

[0044] As a preferred embodiment, in this embodiment, a conical pressing part 34 is connected to the surface of the first cover plate 3 facing the LED strip connecting groove 11. By providing the conical pressing part 34, the LED strip 5 connected in the LED strip connecting groove 11 can be pressed and fixed more firmly, and the LED strip 5 can be more effectively prevented from shaking or misaligning.

[0045] The conical pressing portions 34 are multiple, arranged in an M-row × N-column array, where M and N are integers greater than or equal to 2. In this embodiment, as... Figure 3 As shown, there are 6 conical pressing parts 34 arranged in an array of 2 rows × 3 columns.

[0046] As a preferred embodiment, such as Figure 3 As shown, on the surface of the first cover plate 3 facing the light strip connecting groove 11, a cover guide post 35 is connected on the side near the first folding connecting part 31. A cover guide hole 112 corresponding to the cover guide post 35 is formed on the inner wall of the first side of the light strip connecting groove 11. By setting the mutually cooperating cover guide post 35 and cover guide hole 112, the first cover plate 3 and the light strip connecting groove 11 can be better aligned and fastened, avoiding misalignment and damage during the fastening and closing process.

[0047] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A corner connector for LED light strips, characterized in that, include: The bottom shell (1) has two LED strip connecting slots (11) with a predetermined included angle and a receiving slot (12) connected between the two LED strip connecting slots (11); A conductive connection assembly (2) is assembled in the receiving groove (12) and has two sets of conductive springs (21) extending into the two light strip connection grooves (11); The light strip connecting groove (11) has a light strip insertion guide (13) extending from the outer side wall of the receiving groove (12), and the conductive spring (21) is connected to the light strip insertion guide (13); a first cover plate (3) that can snap onto the light strip connecting groove (11) is rotatably connected to the bottom shell (1), and the first cover plate (3) and the light strip connecting groove (11) surround to form a light strip contour cavity.

2. The LED strip corner connector according to claim 1, characterized in that, The first side edge of the first cover plate (3) is rotatably connected to the first side edge of the light strip connecting groove (11) via the first folding connecting part (31). The first cover plate (3) is provided with a first buckle part (32) on its second side edge opposite to its first side. The light strip connecting groove (11) is provided with a second buckle part (111) on its second side outer wall opposite to its first side, which cooperates with the first buckle part (32).

3. The LED strip corner connector according to claim 2, characterized in that, The second side edge of the first cover plate (3) is also provided with a folding lever part (33).

4. The LED strip corner connector according to claim 2, characterized in that, A conical top pressing part (34) is connected to the surface of the first cover plate (3) facing the light strip connecting groove (11).

5. The LED strip corner connector according to claim 4, characterized in that, The number of the conical pressing parts (34) is multiple, and the multiple conical pressing parts (34) are arranged in an array of M rows × N columns, where M and N are integers greater than 2.

6. The LED strip corner connector according to claim 2, characterized in that, On the surface of the first cover plate (3) facing the light strip connecting groove (11), a cover guide post (35) is connected on the side near the first folding connecting part (31). A cover guide hole (112) corresponding to the cover guide post (35) is opened on the inner wall of the first side of the light strip connecting groove (11).

7. The LED strip corner connector according to claim 1, characterized in that, The upper surface of the light strip insertion guide (13) is provided with a spring plate positioning groove (131), and the conductive spring plate (21) is embedded in the spring plate positioning groove (131). The conductive spring plate (21) has a bent protrusion (211) protruding from the upper surface of the light strip insertion guide (13).

8. The LED strip corner connector according to claim 1, characterized in that, The predetermined included angle is 30°, 45°, 60°, 90°, 120°, 135° or 150°.

9. The LED strip corner connector according to any one of claims 1-8, characterized in that, The conductive connection assembly (2) further includes a PCB board (22) and an insulating protective shell (23) covering the PCB board (22). The insulating protective shell (23) has a shape adapted to the receiving groove (12) and is assembled in the receiving groove (12). Two sets of conductive springs (21) are electrically connected to the PCB board (22) and extend from the side of the insulating protective shell (23).

10. The LED strip corner connector according to claim 8, characterized in that, The bottom shell (1) is rotatably connected to a second cover plate (4) that can snap onto the receiving groove (12). When the second cover plate (4) is on the receiving groove (12), it presses and fixes the insulating protective shell (23). The first side edge of the second cover plate (4) is rotatably connected to the first side edge of the receiving groove (12) via the second folding connection part (41). The second side edge of the second cover plate (4) opposite to its first side is provided with a third latching part (42). The inner side wall of the receiving groove (12) opposite to its first side is provided with a fourth latching part (121) that cooperates with the third latching part (42).

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