An energy-saving and environmentally friendly LED backlight strip

Abstract

This application relates to an energy-saving and environmentally friendly LED backlight strip, comprising a flexible circuit board, an insulating housing, multiple connecting mechanisms, and multiple light strips. The insulating housing has a mounting cavity in which the flexible circuit board is embedded. Multiple connecting mechanisms are detachably and slidably connected to the insulating housing, and each connecting mechanism is plugged into a socket corresponding to a light strip. The connecting mechanisms have a first state and a second state. In the first state, the connecting mechanism is pressed against the insulating housing and electrically connected to the flexible circuit board. In the second state, the connecting mechanism slides relative to the insulating housing and is separated from the flexible circuit board. Through the state switching and sliding connection relationship of the connecting mechanisms, a separable electrical connection structure between the connecting mechanisms and the flexible circuit board is achieved. In the event of partial damage, either the connecting mechanism or the flexible circuit board can be replaced separately. Furthermore, the position of the connecting mechanisms can be adjusted by sliding to adapt to different light strip arrangement requirements, thereby effectively reducing maintenance costs and improving structural adaptability.

Description

Technical Field

[0001] This application relates to the field of energy-saving lighting equipment technology, and in particular to an energy-saving and environmentally friendly LED backlight strip. Background Technology

[0002] Currently, LCD TVs rely on backlight modules to provide the display light source. Among them, direct-lit LED backlighting, which arranges multiple LED strips behind the display panel or on the bottom back panel, has become the mainstream solution for large-screen TVs.

[0003] In related technologies, multiple LED backlight strips are connected through the same flexible circuit board, that is, a flexible circuit board has multiple plug terminals, and each plug terminal is electrically connected to a socket on each LED backlight strip. Through research, the applicant found that when one plug terminal is damaged, the entire flexible circuit board needs to be replaced, which results in high maintenance costs and is not conducive to the energy-saving and environmentally friendly design of LED backlight strips. Summary of the Invention

[0004] This application provides an energy-saving and environmentally friendly LED backlight strip to at least partially solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this application provides an energy-saving and environmentally friendly LED backlight strip, comprising: Flexible circuit board; An insulating housing having a mounting cavity, wherein the flexible circuit board is embedded in the mounting cavity; Multiple connecting mechanisms are provided, and each connecting mechanism is detachably and slidably connected to the insulating housing; The light strips are provided in multiple forms, each light strip has a socket, and each of the connecting mechanisms is plugged into the socket of one of the light strips; The connecting mechanism has a switchable first state and a second state. In the first state, the connecting mechanism is pressed against the insulating housing and electrically connected to the flexible circuit board. In the second state, the connecting mechanism slides relative to the insulating housing and is separated from the flexible circuit board.

[0006] Optionally, the connection mechanism includes a plug terminal configured to engage with a socket of the light strip.

[0007] Optionally, the connection mechanism further includes a sliding assembly connected to the plug terminal and configured to slide with the insulating housing.

[0008] Optionally, the sliding assembly includes a connecting part and a sliding part. The insulating housing has a slot, which communicates with the mounting cavity. The connecting part is partially embedded in the slot, and the sliding part is located in the portion of the connecting part within the slot. The inner wall of the slot has a groove, and the sliding part is slidably inserted into the groove. The plug terminal is located in the portion of the connecting part outside the slot.

[0009] Optionally, the slot, the slide, and the mounting cavity extend through the insulating housing along its length. And / or, the cross-sectional shape of the groove and the cross-sectional shape of the sliding part are both T-shaped or dovetail-shaped; And / or, the connecting part is L-shaped, with one section of the connecting part located outside the slot and the other section located inside the slot.

[0010] Optionally, the connecting mechanism further includes a limiting component, which is rotatably disposed on the sliding component; In the first state, the limiting component is electrically abutting against the flexible circuit board to limit the sliding component's sliding motion, and in the second state, it is separated from the flexible circuit board to allow the sliding component to remain in motion.

[0011] Optionally, the limiting component includes a rotating part, a pushing part, an abutting part, and a torsion spring. The pushing part and the abutting part are both connected to the rotating part and are perpendicular to each other. The abutting part is located inside the slot, and the pushing part is located outside the slot. The rotating part is rotatably connected to the sliding component. The torsion spring is sleeved on the rotating part, with one end connected to the rotating part and the other end connected to the sliding component. In its natural state, the abutting part of the torsion spring abuts against one side of the flexible circuit board, and the actuating part is angularly spaced from the outer end wall of the insulating housing, so that the connecting mechanism is in the first state. When the actuating part approaches the outer end wall of the insulating shell under the action of external force, the abutting part separates from one side of the flexible circuit board, so that the connecting mechanism is in the second state.

[0012] Optionally, the connecting mechanism further includes a flexible conductive sheet, and a slot is formed on the actuating part along the thickness direction of the actuating part. The flexible conductive sheet is electrically connected to the plug terminal, and the flexible conductive sheet partially passes through the slot and adheres to the outer surface of the abutting part.

[0013] Optionally, the flexible conductive sheet includes a redundant section and an adhesive section. The adhesive section is adhered to the outer surface of the abutment portion. One end of the redundant section is electrically connected to the plug terminal, and the other end passes through the strip hole and is connected to the adhesive section. The redundant section is curved and remains in a relaxed state throughout the rotation of the abutment portion.

[0014] Optionally, the length of the flexible circuit board is greater than the length of the insulating housing, and the end of the flexible circuit board located outside the insulating housing has an amplification section, which is configured to be electrically connected to an external power source.

[0015] This application has at least the following beneficial technical effects: 1. By designing the connection mechanism as detachable and slidable to the insulating housing, and setting switchable first and second states, the connection mechanism achieves a controllable switching relationship between electrical connection and release sliding. When a part of the connection mechanism malfunctions, it can be switched to the second state, detached, and replaced individually, eliminating the need to replace the entire flexible circuit board, thus reducing maintenance costs to some extent. When the flexible circuit board has problems, the connection mechanism can be retained and reused, helping to reduce material consumption. Furthermore, the sliding structure of the connection mechanism along the insulating housing allows for adjustment of its placement according to different light strip numbers and spacing requirements. When product models change, there is no need to redesign the entire electrical connection structure, thereby improving versatility and reducing production management complexity, which is of positive significance in terms of energy conservation and resource utilization. 2. By incorporating a rotatable limiting component within the connecting mechanism and utilizing the coordinated operation of the rotating part, the actuating part, the abutting part, and the torsion spring, an integrated control unit combining electrical connection and sliding limiting functions is structurally formed. In its natural state, the torsion spring provides rotational driving torque, the abutting part forms an electrical contact with the flexible circuit board, and simultaneously constrains the sliding component, maintaining the connecting mechanism in a stable position. When an external force is applied to the actuating part, the rotating part rotates, the abutting part separates from the flexible circuit board, and the sliding component returns to its movable state, thus completing the switch between the first and second states. This structure achieves the linkage control of establishing and releasing electrical connections and locking and unlocking positions without the need for additional locking components, which simplifies the structural composition and reduces assembly complexity. Furthermore, the elastic reset characteristic allows the connecting mechanism to automatically return to a stable state after operation, improving operational convenience and connection stability to a certain extent, which is significant for reducing maintenance difficulty and improving overall reliability. 3. By incorporating a flexible conductive sheet in the connection mechanism, with one end electrically connected to the plug terminal and the other extending through a perforation and attached to the outer surface of the contact portion, the electrical connection path transitions from the flexible circuit board through the contact portion to the flexible conductive sheet and then to the plug terminal. A stable conductive link is formed when the contact portion contacts the flexible circuit board, which helps maintain reliable power supply even under structural separation conditions. Simultaneously, the flexible conductive sheet is divided into a redundant section and a bonding section. The bonding section covers the outer surface of the contact portion to enhance the stability of the contact area, while the redundant section is curved and loosely arranged. During the rotation of the contact portion, it absorbs displacement changes through its own deformation, thereby avoiding any restraining effect on the rotating structure and reducing the risk of connection instability caused by pulling to a certain extent. This structure ensures the continuity of the electrical connection while also allowing for the rotational flexibility of the limiting components, which helps improve the reliability of the connection mechanism during frequent operation and has a positive impact on extending the overall service life. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0018] Figure 1 This is a schematic diagram of the overall structure of the LED backlight strip provided in the embodiments of this application; Figure 2 This is a cross-sectional view used in the embodiments of this application to illustrate the connection relationship between the flexible circuit board, the insulating housing, and the connecting mechanism; Figure 3 This is a partial cross-sectional view in an embodiment of this application, used to illustrate the connection relationship between the flexible circuit board, the insulating housing, and the connecting mechanism; Figure 4 yes Figure 3 An enlarged schematic diagram of part A in the middle.

[0019] Explanation of reference numerals in the attached figures: 1. Flexible circuit board; 11. Amplification section; 2. Insulating housing; 21. Mounting cavity; 22. Slot; 23. Slide groove; 3. Connecting mechanism; 31. Plug terminal; 32. Sliding assembly; 321. Connecting part; 322. Sliding part; 33. Limiting assembly; 331. Rotating part; 332. Actuating part; 3321. Slot hole; 333. Abutting part; 334. Torsion spring; 34. Flexible conductive sheet; 341. Redundant section; 342. Fitting section; 4. LED strip; 41. Socket. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0021] This application provides an energy-saving and environmentally friendly LED backlight strip 4. Please refer to [link / reference]. Figure 1 and Figure 2 The energy-saving and environmentally friendly LED backlight strip 4 includes a flexible circuit board 1, an insulating shell 2, multiple connecting mechanisms 3, and multiple light strips 4.

[0022] For example, an installation cavity 21 is formed inside the insulating housing 2, and the flexible circuit board 1 is embedded in the installation cavity 21 and extends along the length direction of the insulating housing 2 to provide an electrical connection path for each light strip 4.

[0023] For example, the insulating housing 2 can be integrally molded from engineering plastic with high insulation strength, and its mounting cavity 21 has an open structure in cross-section to facilitate the assembly of the flexible circuit board 1 and subsequent maintenance operations. At the same time, a guide structure, such as a sliding groove or guide rail, is formed on the side wall or bottom wall of the mounting cavity 21 to define the sliding path of the connecting mechanism 3.

[0024] For example, multiple connecting mechanisms 3 are provided and arranged at intervals along the length of the insulating housing 2. Each connecting mechanism 3 is detachably and slidably connected to the insulating housing 2, that is, the connecting mechanism 3 can both move relative to the guide structure and detach from the insulating housing 2 at a specific position. Multiple light strips 4 are also provided and arranged corresponding to each connecting mechanism 3. Each light strip 4 is provided with a socket 41. The connecting mechanism 3 and the socket 41 are electrically connected by plugging, thereby leading the electrical signal in the flexible circuit board 1 to the corresponding light strip 4.

[0025] For example, the connecting mechanism 3 has a switchable first state and a second state.

[0026] Furthermore, the first state can be understood as the working state. In this state, the connecting mechanism 3 forms an electrical connection with the flexible circuit board 1 through the elastic pressing part, conductive terminal or contact piece. At the same time, part of the connecting mechanism 3 abuts against the mating surface of the insulating shell 2 or the flexible circuit board 1 to form a stable spatial positioning relationship, so as to reduce the impact of vibration or thermal expansion and contraction on the contact reliability.

[0027] Furthermore, the second state can be understood as a release state, in which the connecting mechanism 3 can slide along the length of the insulating housing 2, and the flexible circuit board 1 is separated from the connecting mechanism 3, thus releasing the electrical connection and forming an electrical disconnect. At the same time, the limiting relationship between the connecting mechanism 3 and the insulating housing 2 is released, and the connecting mechanism 3 can be removed laterally or vertically from the mounting cavity 21.

[0028] For example, the state switching of the connecting mechanism 3 can be achieved by a manual push structure, an elastic buckle structure, or a rotation unlocking structure. The elastic buckle structure can be embedded in the limiting hole of the insulating shell 2 in the first state and released by external force in the second state, thereby realizing the state switching.

[0029] It is understandable that when a certain connecting mechanism 3 malfunctions due to wear, poor contact, or mechanical damage, the corresponding connecting mechanism 3 can be switched from the first state to the second state, allowing it to slide along the insulating shell 2 and detach from the insulating shell 2. Then, a new connecting mechanism 3 can be inserted and switched back to the first state to restore the electrical connection at that position.

[0030] Meanwhile, since the flexible circuit board 1 remains within the mounting cavity 21 without disassembly, and only the local connection mechanism 3 needs to be replaced, the range of replacement parts involved in the maintenance process is significantly reduced. Material consumption and manual operation complexity are reduced to a certain extent, thus helping to reduce maintenance costs. Compared with the traditional structure where multiple plug terminals 31 are integrated on the same flexible circuit board 1, this solution separates the vulnerable parts from the overall board into independent connection mechanism 3 modules, making fault location more intuitive and the replacement path simpler.

[0031] In another application scenario, when the flexible circuit board 1 experiences problems such as wire breakage, aging, or localized burning, all connecting mechanisms 3 can be switched to the second state and disassembled sequentially. The original flexible circuit board 1 can then be removed from the mounting cavity 21 and replaced with a new one. Subsequently, all connecting mechanisms 3 are reinstalled and switched back to the first state to complete the reset. During this process, the connecting mechanisms 3 do not need to be replaced and can be reused. This creates a modular disassembly and assembly relationship at the structural level, which helps reduce overall replacement costs and the number of discarded parts.

[0032] Furthermore, since the connecting mechanism 3 can slide along the insulating housing 2, its distribution position on the insulating housing 2 is adjustable. When dealing with LED backlight strips 4 of different specifications, the number and position of the connecting mechanism 3 can be adjusted according to the number and spacing requirements of the strips 4. For example, in products with a small number of strips 4, excess connecting mechanisms 3 can be switched to the second state and removed, retaining only the necessary number; in products with a large number of strips 4, the number of connecting mechanisms 3 can be increased and adjusted to the corresponding position by sliding, thereby matching with the strip 4 socket 41. By standardizing the specifications of the flexible circuit board 1 and cooperating with the adjustable number of connecting mechanisms 3, the types of materials in the production process tend to be simplified, the complexity of inventory management is reduced to a certain extent, and the assembly flexibility is enhanced, which is beneficial for adapting to the needs of multiple product models.

[0033] It should be noted that the "sliding" nature of the connecting mechanism 3 is not limited to linear sliding; it can also be arc-shaped sliding or segmented guided movement, as long as a controllable displacement path can be formed on the insulating shell 2 and the electrical connection and disconnection can be achieved in conjunction with the state switching structure. "Removable" means that the connecting mechanism 3 can be separated from the insulating shell 2 manually or with tools without damaging the structure of the insulating shell 2 and the flexible circuit board 1. Through the above structural design, the overall system exhibits good flexibility and economy in terms of maintenance, adaptation, and resource utilization, and has positive significance in the direction of energy conservation and environmental protection.

[0034] In some implementations, combined Figure 1 , Figure 2 The connecting mechanism 3 includes a plug terminal 31, which is located on the side of the connecting mechanism 3 facing the light strip 4 and exposed outside the insulating housing 2. The plug terminal 31 is configured to form a plug-in mating relationship with the socket 41 on the light strip 4.

[0035] For example, the plug terminal 31 can be a metal conductive sheet, an elastic contact pin, or a plate terminal structure, the shape of which matches the socket of the light strip 4 socket 41. During insertion, it forms a stable contact through elastic deformation, thereby establishing an electrical connection path while mechanically cooperating.

[0036] It is understandable that by independently setting the plug terminal 31 in the connection mechanism 3, rather than directly integrating it on the flexible circuit board 1, the electrical connection interface is transferred from the overall board to the modular component. The connection position is more concentrated and easier to identify. In case of contact abnormality or terminal damage, the connection mechanism 3 where the plug terminal 31 is located can be directly replaced. This helps to reduce the disassembly range during the maintenance process and, to a certain extent, reduces repeated operations on the flexible circuit board 1, thereby helping to extend the service life of the flexible circuit board 1.

[0037] In some implementations, combined Figure 2 , Figure 3 and Figure 4 The connecting mechanism 3 also includes a sliding component 32, which is connected to the plug terminal 31 and serves as a transition structure between the connecting mechanism 3 and the insulating housing 2. The sliding component 32 is configured to form a sliding connection with the insulating housing 2.

[0038] It is worth noting that the sliding component 32 can be understood as a structural unit that carries the plug terminal 31 and guides its movement. During the overall movement of the connecting mechanism 3, the plug terminal 31 moves synchronously with the sliding component 32, thereby changing the relative position between the plug terminal 31 and the flexible circuit board 1 and the lamp strip 4 socket 41. By introducing the sliding component 32, the assembly method of the connecting mechanism 3 on the insulating housing 2 is changed from fixed to movable. During installation or maintenance, the position distribution of the connecting mechanism 3 can be changed by pushing the sliding component 32 with external force. When facing different requirements for the spacing or number of lamp strips 4, the connecting mechanism 3 can be rearranged on the insulating housing 2, which is beneficial to enhance the adaptability of the overall structure and reduce the need to design multiple flexible circuit boards 1 for different product models.

[0039] For example, the sliding assembly 32 includes a connecting portion 321 and a sliding portion 322. A slot 22 is provided on the insulating housing 2, which communicates with the mounting cavity 21 and extends along the length direction of the insulating housing 2. The connecting portion 321 is partially embedded in the slot 22, thereby being limited and constrained in the thickness direction by the side wall of the slot 22, preventing the connecting mechanism 3 from disengaging or shaking during use. The sliding portion 322 is disposed in the part of the connecting portion 321 located inside the slot 22.

[0040] For example, the sliding part 322 can be a raised rib, a rolling structure or a low-friction material block, the shape of which matches the groove 23 on the inner wall of the slot 22.

[0041] For example, the groove 23 is disposed on the inner wall of the slot 22 and extends along the length direction. After the sliding part 322 is inserted into the groove 23, it forms a sliding path with a defined direction under the guidance of the groove 23. When an external force is applied to the connecting part 321, the connecting part 321 drives the sliding part 322 to move along the direction of the groove 23. The cooperation relationship between the sliding part 322 and the groove 23 constrains the movement trajectory, thereby making the connecting mechanism 3 move smoothly in a predetermined direction. The plug terminal 31 is disposed on the part of the connecting part 321 located outside the slot 22. During the movement of the sliding assembly 32, the plug terminal 31 moves synchronously on the outside of the insulating housing 2, thereby changing its docking position with the socket 41 of the light strip 4.

[0042] Through the above structural combination, the connecting part 321 is embedded in the slot 22 to form a basic positioning, and the sliding engagement between the sliding part 322 and the sliding groove 23 provides guiding support for the connecting mechanism 3. Under external force, it can be displaced along the length of the insulating shell 2, and at the same time, it remains in the current position when not under force. This structure is beneficial in two ways: firstly, it is advantageous to adjust the position of the connecting mechanism 3 according to the layout of the light strips 4 during the assembly stage, so that the plug terminal 31 corresponds with the socket 41 of each light strip 4; secondly, during the maintenance stage, the connecting mechanism 3 can be slid to a position that is easy to operate before disassembly or replacement, thereby providing higher operability in the TV back panel environment where the operating space is limited.

[0043] In addition, since the sliding part 322 and the groove 23 are in the form of surface contact or line contact, the contact area is relatively small, the frictional resistance is reduced to a certain extent, the external force required to push the connecting part 321 is smaller, and the operation process is smoother.

[0044] It should be further explained that the cross-sectional shapes of the slot 22 and the slide 23 can be designed as T-shaped, dovetail-shaped, or rectangular structures according to actual needs, as long as they can effectively limit the sliding part 322 and allow it to move in a preset direction; the connecting part 321 and the sliding part 322 can be integrally formed or separately assembled, as long as they can maintain a stable connection during force transmission. Through the coordinated cooperation between the plug terminal 31, the sliding component 32, and the insulating shell 2, the connecting mechanism 3 exhibits modularity and adjustability in both electrical connection and mechanical installation dimensions, which plays a positive role in reducing maintenance costs and improving structural adaptability.

[0045] In some implementations, combined Figure 2 , Figure 3 and Figure 4 The slot 22, slide groove 23, and mounting cavity 21 extend through the entire insulating housing 2 along its length, forming a continuous channel structure. The two ends of this through-type structure correspond to the two side edges of the insulating housing 2. Through this through-type arrangement, the sliding component 32 can continuously move along the slide groove 23 until it reaches the edge of the insulating housing 2. At this point, the limiting relationship between the connecting part 321 and the slot 22 disappears at the boundary, allowing the sliding component 32 to detach from the insulating housing 2 along the opening direction, thus completing the disassembly operation. Similarly, the flexible circuit board 1 is arranged along its length within the mounting cavity 21. With this through-type structure, it can be directly pulled out or inserted from one side of the insulating housing 2 without additional disassembly of the housing structure, simplifying assembly and maintenance processes and reducing interference with other components during assembly and disassembly.

[0046] For example, the cross-sectional shape of both the groove 23 and the sliding part 322 is T-shaped or dovetail-shaped. This type of structure features a narrow opening and a relatively expanded internal space. When the sliding part 322 is embedded in the groove 23, its shape forms a mutual interlocking relationship with the groove 23, and it is structurally constrained in the direction perpendicular to the length of the groove 23. Through this constraining relationship, the sliding part 322 is less likely to disengage from the track of the groove 23 during sliding, thereby maintaining the stable guiding state of the connecting mechanism 3 on the insulating housing 2. It can still maintain the engagement relationship when subjected to vibration or external force disturbance, which is beneficial to improving the stability of the connecting mechanism 3 during use. At the same time, since the sliding direction and the constraining direction are independent of each other, the movement of the sliding part 322 in the length direction is not significantly hindered, and the position adjustment can be completed with a small operating force.

[0047] For example, the connecting part 321 is L-shaped and includes two interconnected sections. One section is located outside the slot 22 and serves as the mounting base for the plug terminal 31, while the other section extends into the slot 22 and connects to the sliding part 322. Through the L-shaped configuration, the connecting part 321 forms a folded relationship in space. The portion inside the slot 22 serves as a guide and load-bearing function, while the portion outside the slot 22 supports the plug terminal 31 and mates with the light strip 4 socket 41.

[0048] It is worth noting that this structure can be formed during processing through injection molding or metal stamping and bending, resulting in a relatively simple structural form that helps reduce manufacturing complexity. Simultaneously, the L-shaped connector 321 forms an inner and outer partition arrangement in the assembled state, providing stable support points for the plug terminals 31. The overall positioning of the connecting mechanism 3 on the insulating housing 2 is clearer, thus helping to maintain mating accuracy and reduce the risk of misalignment during insertion. Through the combined design of the through-channel structure, specific cross-sectional fit, and L-shaped connector 321, the connecting mechanism 3 exhibits a synergistic effect in terms of sliding guidance, stable positioning, and ease of assembly and disassembly, achieving a balance between maintenance convenience and structural reliability.

[0049] In some implementations, such as Figure 2 , Figure 3 and Figure 4 As shown, the connecting mechanism 3 also includes a limiting component 33, which is rotatably mounted on the sliding component 32 and changes angle around a preset rotation axis. In the first state, the limiting component 33 forms an electrical contact with the flexible circuit board 1, and at the same time, the contact restricts the movement of the sliding component 32 within the slide groove 23; in the second state, the limiting component 33 is separated from the flexible circuit board 1, thereby releasing the electrical contact and releasing the degree of freedom of movement of the sliding component 32.

[0050] It is worth noting that the "rotatability" of the limiting component 33 can be understood as a structural form that rotates around a fixed axis, such as through a pin, a rotating shaft, or an integrally formed flexible rotating structure, as long as it can switch between two stable positions. By introducing the limiting component 33 into the connecting mechanism 3, on the one hand, an electrical contact path is provided with the flexible circuit board 1, and on the other hand, a position locking and release control is formed for the sliding component 32 mechanically. This creates a coupling relationship between electrical connection and position control at the structural level, which helps to reduce the setting of additional locking structures and simplify the overall configuration.

[0051] For example, the limiting component 33 includes a rotating part 331, a toggle part 332, an abutment part 333, and a torsion spring 334. The toggle part 332 and the abutment part 333 are respectively connected to the rotating part 331 and arranged perpendicularly to each other. The rotating part 331 and the sliding component 32 are connected by a rotatable connection. The torsion spring 334 is sleeved on the outer periphery of the rotating part 331 and forms an elastic drive source, with one end connected to the rotating part 331 and the other end connected to the sliding component 32.

[0052] Furthermore, the actuating part 332 is located in the outer area of ​​the slot 22 for easy manual operation; the abutting part 333 extends to a position close to the flexible circuit board 1 to form a conductive path by contacting the surface of the flexible circuit board 1. The torsion spring 334 applies a preload torque to the rotating part 331 in its natural state, causing the rotating part 331 to tend towards a certain initial angular position. In this position, the abutting part 333 presses against one side of the flexible circuit board 1 to form contact, while the actuating part 332 maintains a certain angular distance from the outer end wall of the insulating housing 2. This "angular distance" can be understood as the actuating part 332 not being in contact with the outer end wall, leaving room for rotation. This spatial relationship provides a travel basis for subsequent actuation operations.

[0053] It is understood that in the initial state described above, the abutment portion 333 forms a pressing relationship with one side of the flexible circuit board 1. Since the flexible circuit board 1 is embedded in the mounting cavity 21 and the other side of the flexible circuit board 1 is in contact with the inner wall of the mounting cavity 21, the flexible circuit board 1 is supported and constrained in the thickness direction. When the abutment portion 333 applies contact force, its overall position remains stable, which to a certain extent helps to maintain the electrical contact stability between the abutment portion 333 and the flexible circuit board 1. At the same time, the pressing action of the abutment portion 333 on the flexible circuit board 1 creates additional friction or blocking effect in the sliding direction. Combined with the cooperation constraint between the sliding portion 322 and the groove 23, the sliding assembly 32 maintains its current position when not in operation, and the connecting mechanism 3 is in the first state.

[0054] Meanwhile, when it is necessary to adjust the position or disassemble the connecting mechanism 3, an external force can be applied to the actuating part 332, causing it to rotate toward the outer end wall of the insulating housing 2. During this process, the external force overcomes the elastic torque of the torsion spring 334, driving the rotating part 331 to rotate around the rotation axis. The actuating part 332 gradually approaches or even touches the outer end wall of the insulating housing 2, while the abutting part 333 moves away from the surface of the flexible circuit board 1 along with the rotating part 331. As the contact between the abutting part 333 and the flexible circuit board 1 is released, the electrical connection path is cut off, and the original pressing constraint disappears. The sliding assembly 32 is only affected by the guiding effect between the sliding part 322 and the groove 23, thus allowing it to move along the direction of the groove 23 under a smaller external force, and the connecting mechanism 3 enters the second state. In this second state, the connecting mechanism 3 can be adjusted on the insulating housing 2, or continue to slide to the end of the insulating housing 2 and disengage, achieving the purpose of disassembly.

[0055] Furthermore, after the external force acting on the actuating part 332 is removed, the torsion spring 334 releases its stored elastic potential energy and drives the rotating part 331 to rotate in the opposite direction. The actuating part 332 returns to a position that forms an angular gap with the outer end wall, and the abutting part 333 moves back toward the flexible circuit board 1 and contacts its surface, thereby restoring the electrical connection and re-constraining the sliding component 32. Through the automatic reset characteristic of the torsion spring 334, the limiting component 33 has a self-recovering capability when switching between the two states, which helps reduce additional operating steps and lowers the probability of human error.

[0056] In some implementations, combined Figure 2 , Figure 3 and Figure 4 The connecting mechanism 3 also includes a flexible conductive sheet 34, which is electrically connected to the plug terminal 31 and extends along the structural path of the connecting mechanism 3 to the abutment portion 333. A slot 3321 is formed on the actuating portion 332 along its thickness direction. The slot 3321 penetrates the thickness of the actuating portion 332 and forms a guide channel. Part of the flexible conductive sheet 34 passes through the slot 3321 and extends to the outer surface of the abutment portion 333, where it adheres.

[0057] It is worth noting that the slot 3321 can be understood as an opening structure for the flexible conductive sheet 34 to pass through. Its cross-sectional dimensions are matched with the thickness and width of the flexible conductive sheet 34, thereby ensuring the passage while forming a certain guiding constraint on the flexible conductive sheet 34.

[0058] For example, the flexible conductive sheet 34 can be made of a flexible metal sheet, a conductive film or a composite conductive material, and has a certain bending ability and conductivity.

[0059] With the above structural arrangement, when the connecting mechanism 3 is in the first state, the abutment portion 333 forms a contact relationship with one side of the flexible circuit board 1, and the portion of the flexible conductive sheet 34 attached to the outer surface of the abutment portion 333 simultaneously contacts the flexible circuit board 1, thereby forming a conductive path between the flexible circuit board 1 and the plug terminal 31. Electrical energy is transmitted along the flexible circuit board 1 to the flexible conductive sheet 34, and then from the flexible conductive sheet 34 to the plug terminal 31, and finally transmitted to the light strip 4 through the plug terminal 31 and the socket 41 of the light strip 4, realizing the connection of the electrical link. Since the flexible conductive sheet 34 covers the outer surface of the abutment portion 333, when the abutment portion 333 contacts the flexible circuit board 1, the contact interface changes from a rigid component to a flexible conductive interface, which to a certain extent helps to buffer contact stress and improve contact stability. At the same time, the slot 3321 provides a path for the flexible conductive sheet 34 to pass through, so that the flexible conductive sheet 34 can form a continuous connection between the toggle portion 332 and the abutment portion 333, avoiding the interference risk caused by bypassing or exposed arrangement.

[0060] For example, the flexible conductive sheet 34 includes a redundant section 341 and a bonding section 342. The bonding section 342 is adhered to the outer surface of the abutment portion 333 and forms the main conductive contact area. One end of the redundant section 341 is electrically connected to the plug terminal 31, and the other end passes through the slot 3321 and is connected to the bonding section 342. The redundant section 341 is bent and has a reserved length in space, and its whole is in a relaxed state.

[0061] It is worth noting that the mating section 342 can be understood as the area closely attached to the surface of the abutment portion 333. Its shape is adapted to the outer surface contour of the abutment portion 333, thereby forming a larger contact area when the abutment portion 333 contacts the flexible circuit board 1, which is beneficial to improving the stability of the conductive contact. The redundant section 341 serves as a transition structure between the connector terminal 31 and the mating section 342, providing length margin through a bending path.

[0062] It is understandable that when the limiting component 33 rotates, the contact portion 333 changes angle around the rotating portion 331, and the fitting section 342 moves synchronously with the contact portion 333. The redundant section 341, being curved and loosely arranged, absorbs displacement changes through its own deformation during rotation, thus forming a flexible transition between the plug terminal 31 and the contact portion 333. Since the redundant section 341 is not in a taut state, it does not significantly hinder the rotation process when the contact portion 333 rotates, nor does it exert additional tension on the flexible circuit board 1, which to some extent helps maintain the relatively independent movement relationship between the components. Compared to the straight, taut connection of the redundant section 341, the curved, loose structure of the redundant section 341 has better adaptability during rotation, reducing the risk of localized stress concentration caused by displacement mismatch.

[0063] Furthermore, the bending shape of the redundant section 341 can be arc-shaped, wavy, or zigzag-shaped, as long as it provides sufficient length margin and allows deformation during rotation; the connection between the fitting section 342 and the abutment part 333 can be an adhesive, press-fit, or embedded fixing structure to ensure a stable attachment state during multiple rotations.

[0064] Through the coordinated operation of the flexible conductive sheet 34, the slot 3321 structure, and the limiting component 33, the electrical connection path and the mechanical motion path form a separate but related structural system. This ensures the continuity of electrical conduction while taking into account the flexibility of rotation, which is of positive significance in improving the reliability and adaptability of the connection mechanism 3.

[0065] In some implementations, combined Figure 2 , Figure 3 and Figure 4 The length of the flexible circuit board 1 is set to be greater than the length of the insulating shell 2. That is, after the flexible circuit board 1 is mainly arranged in the mounting cavity 21, one end of it extends from the end of the insulating shell 2 to the external space. The end of the extended part forms an amplification section 11, which is configured to be electrically connected to an external power source.

[0066] For example, the structure of the expansion section 11 can be an area provided with conductive pads, connection terminals, or plug contacts to form a conductive path with the power interface. Since the flexible circuit board 1 body has a certain degree of flexibility, the expansion section 11 located outside the insulating housing 2 is not rigidly constrained by the mounting cavity 21 and the housing structure, and has the characteristics of being flexible or foldable in space. In the actual assembly process, the path can be adjusted according to the specific location of the external power supply, thereby forming an adaptive connection relationship under different overall layout conditions.

[0067] With the above structural arrangement, the flexible circuit board 1 does not require additional rigid extensions or adapter structures; it can connect to the external power supply solely through its own extension section, which helps reduce connection layers and simplify the structural configuration. Meanwhile, the expansion section 11 is located outside the insulating housing 2, facilitating connection operations during assembly or maintenance, thus improving operational convenience to a certain extent.

[0068] Furthermore, the size and shape of the expansion section 11 can be designed according to the power interface type. For example, a widened area can be provided to accommodate multiple sets of conductive contacts, thereby providing a more stable contact base during connection. By forming the expansion section 11 with a length greater than that of the flexible circuit board 1, a transition relationship is formed between the internal electrical connection structure and the external power supply path, which has positive implications for adaptability and assembly flexibility.

[0069] In some embodiments, the flexible circuit board 1 has independent positive and negative conductive lines inside, both extending along the length of the flexible circuit board 1 and electrically connected to the positive and negative output terminals of an external power supply, respectively. Each connection mechanism 3 has at least two conductive connection positions, at least one of which is electrically connected to the positive conductive line, and the other is electrically connected to the negative conductive line, to form a complete power supply path.

[0070] Specifically, the socket 41 on the light strip 4 is provided with a positive terminal and a negative terminal corresponding to the connecting mechanism 3. When the connecting mechanism 3 is in the first state, the connecting mechanism 3 is electrically abutted against the flexible circuit board 1. The conductive structure inside the connecting mechanism 3 is connected to the positive conductive line and the negative conductive line on the flexible circuit board 1, respectively. At the same time, the connecting mechanism 3 is plugged into the socket 41 of the light strip 4, so that the positive input terminal on the light strip 4 is connected to the positive conductive line of the flexible circuit board 1, and the negative output terminal on the light strip 4 is connected to the negative conductive line of the flexible circuit board 1.

[0071] After an external power source inputs electrical energy into the flexible circuit board 1, the current is transmitted through the positive conductive line to the connecting mechanism 3, and then from the connecting mechanism 3 to the light-emitting diode (LED) unit inside the light strip 4. After flowing through the LED unit, the current flows back through the connecting mechanism 3 to the negative conductive line of the flexible circuit board 1, and finally back to the external power source, thus forming a complete closed loop. After the closed loop is formed, the LED unit on the light strip 4 enters the energized state and generates light output.

[0072] Furthermore, when the connecting mechanism 3 switches to the second state, it separates from the flexible circuit board 1, and the conductive connection between the positive and negative conductive lines and the light strip 4 is released, at which point the corresponding light strip 4 stops receiving power. This structure not only meets the complete current loop requirement for the light strip 4 to emit light normally, but also retains the detachable and sliding characteristics of the connecting mechanism 3. In the event of a partial fault, only the corresponding component needs to be replaced, which helps to reduce maintenance costs and resource waste.

[0073] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0074] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0075] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0076] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An energy-saving and environmentally friendly LED backlight strip (4), characterized in that, include: Flexible circuit board (1); An insulating housing (2) has a mounting cavity (21) in which the flexible circuit board (1) is embedded; Multiple connecting mechanisms (3) are provided, and each connecting mechanism (3) is detachably and slidably connected to the insulating housing (2); The light strip (4) is provided in multiple ways, and each light strip (4) has a socket (41). Each of the connecting mechanisms (3) is plugged into the socket (41) of one of the light strips (4). The connecting mechanism (3) has a switchable first state and a second state. In the first state, the connecting mechanism (3) abuts against the insulating housing (2) and is electrically connected to the flexible circuit board (1). In the second state, the connecting mechanism (3) slides relative to the insulating housing (2) and is separated from the flexible circuit board (1).

2. The energy-saving and environmentally friendly LED backlight strip (4) according to claim 1, characterized in that, The connection mechanism (3) includes a plug terminal (31) configured to engage with a socket (41) of the light strip (4).

3. The energy-saving and environmentally friendly LED backlight strip (4) according to claim 2, characterized in that, The connection mechanism (3) further includes a sliding component (32) connected to the plug terminal (31) and configured to slide in connection with the insulating housing (2).

4. The energy-saving and environmentally friendly LED backlight strip (4) according to claim 3, characterized in that, The sliding assembly (32) includes a connecting part (321) and a sliding part (322). The insulating housing (2) has a slot (22) connected to the mounting cavity (21). The connecting part (321) is partially embedded in the slot (22). The sliding part (322) is located in the part of the connecting part (321) within the slot (22). The inner wall of the slot (22) has a groove (23). The sliding part (322) is slidably inserted into the groove (23). The plug terminal (31) is located in the part of the connecting part (321) outside the slot (22).

5. The energy-saving and environmentally friendly LED backlight strip (4) according to claim 4, characterized in that, The slot (22), the slide (23) and the mounting cavity (21) penetrate the insulating housing (2) along the length of the insulating housing (2); And / or, the cross-sectional shape of the groove (23) and the cross-sectional shape of the sliding part (322) are both T-shaped or dovetail-shaped; And / or, the connecting part (321) is L-shaped, with one section of the connecting part (321) located outside the slot (22) and the other section located inside the slot (22).

6. The energy-saving and environmentally friendly LED backlight strip (4) according to claim 4, characterized in that, The connecting mechanism (3) further includes a limiting component (33), which is rotatably disposed on the sliding component (32); In the first state, the limiting component (33) is electrically abutting against the flexible circuit board (1) to limit the sliding component (32), and in the second state, it is separated from the flexible circuit board (1) so that the sliding component (32) remains sliding.

7. The energy-saving and environmentally friendly LED backlight strip (4) according to claim 6, characterized in that, The limiting component (33) includes a rotating part (331), a pushing part (332), an abutting part (333), and a torsion spring (334). The pushing part (332) and the abutting part (333) are both connected to the rotating part (331) and are perpendicular to each other. The abutting part (333) is located inside the slot (22), and the pushing part (332) is located outside the slot (22). The rotating part (331) is rotatably connected to the sliding component (32). The torsion spring (334) is sleeved on the rotating part (331) and one end is connected to the rotating part (331), and the other end is connected to the sliding component (32). In the natural state, the abutting part (333) of the torsion spring (334) abuts against one side of the flexible circuit board (1), and the actuating part (332) is angularly spaced from the outer end wall of the insulating shell (2) so that the connecting mechanism (3) is in the first state. When the actuating part (332) approaches the outer end wall of the insulating shell (2) under the action of external force, the abutting part (333) separates from one side of the flexible circuit board (1) so that the connecting mechanism (3) is in the second state.

8. The energy-saving and environmentally friendly LED backlight strip (4) according to claim 7, characterized in that, The connecting mechanism (3) further includes a flexible conductive sheet (34). A slot (3321) is provided on the actuating part (332) along the thickness direction of the actuating part (332). The flexible conductive sheet (34) is electrically connected to the plug terminal (31), and the flexible conductive sheet (34) partially passes through the slot (3321) and adheres to the outer surface of the abutment part (333).

9. The energy-saving and environmentally friendly LED backlight strip (4) according to claim 8, characterized in that, The flexible conductive sheet (34) includes a redundant section (341) and a bonding section (342). The bonding section (342) is adhered to the outer surface of the abutment part (333). One end of the redundant section (341) is electrically connected to the plug terminal (31), and the other end passes through the strip hole (3321) and is connected to the bonding section (342). The redundant segment (341) is curved and remains in a relaxed state during the rotation of the abutment portion (333).

10. The energy-saving and environmentally friendly LED backlight strip (4) according to any one of claims 1 to 9, characterized in that, The length of the flexible circuit board (1) is greater than the length of the insulating shell (2), and the flexible circuit board (1) has an amplification section (11) at one end outside the insulating shell (2), the amplification section (11) being configured to be electrically connected to an external power source.

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