A mosaic light strip and a flange hidden mounting structure thereof

Abstract

The application discloses an inlaid lamp strip and a flange hidden mounting structure thereof, and relates to the technical field of cabinet body lighting. The structure comprises a lamp strip body, a contact terminal, a guide rail and a flange connecting seat. The guide rail is vertically fixed to the side plate of the cabinet body and is internally provided with a continuous conductive strip and a rack. The flange connecting seat is embedded in the end portion of the layer plate and is flush with the end surface of the layer plate after installation. The flange connecting seat is provided with a power taking portion in elastic contact with the conductive strip, a power connection portion matched with the contact terminal, and a limiting locking mechanism composed of the rack and a fixed tooth. The lamp strip body is connected to the flange connecting seat through the contact terminal to take power. The flange connecting seat can be slid along the guide rail to adjust the height and is automatically locked. The application integrates the conductive transmission, height locking and lamp strip inlaid installation into one, the height adjustment operation of the layer plate is simple, the conductive contact is stable and reliable, the appearance is flat after installation without exposed structure, and the application is suitable for the lighting power supply of adjustable layer plates of various cabinets.

Description

Technical Field

[0001] This invention relates to the field of furniture lighting technology, specifically to an inlaid light strip and its flange concealment installation structure. Background Technology

[0002] With the development of the customized home furnishing industry, cabinet lighting has become a standard feature, with under-shelf LED strips being widely used due to their even illumination and space-saving design. However, existing cabinet under-shelf LED strip installation and power supply solutions have the following shortcomings: Firstly, traditional fixed wiring solutions require power lines to be laid in advance during the cabinet production stage, and the position of the light strips is fixed with the shelves. Users cannot freely adjust the height of the shelves later. If the shelf layout is adjusted, the wiring and rewiring are required, which is inflexible and difficult to meet the ever-changing storage needs.

[0003] Secondly, many existing adjustable conductive structures use open guide rails and exposed power terminals, which not only result in obvious side gaps between the shelves and side panels and poor aesthetics, but also expose metal terminals that are easily scratched by clothing zippers and hanging ornaments, posing a risk of poor contact and short circuits. At the same time, the height-fixed structure and the conductive structure are independent of each other, making the installation process cumbersome and the system integration low.

[0004] Third, some sliding conductive solutions rely solely on the friction between the spring and the guide rail for positioning, which can easily lead to slippage and loosening after long-term use, resulting in insufficient reliability of shelf fixing; moreover, most solutions use a single conductive contact surface, which is prone to breakage due to dust accumulation and wear, and the power supply stability needs to be improved.

[0005] Therefore, there is an urgent need to develop a light strip installation structure that combines recessed and concealed installation, height adjustment and reliable locking, and stable conductivity to solve many problems in the existing technology. Summary of the Invention

[0006] (a) Technical problems to be solved The purpose of this invention is to address the shortcomings of existing technologies by providing an embedded light strip and its flange concealed installation structure. This structure enables the light strip to be embedded and concealed, with the flange connection structure flush with the end face of the shelf. It also integrates conductive transmission and height locking functions, making shelf height adjustment easy and ensuring stable and reliable conductive contact. The overall structure has a high degree of integration and is easy to install, making it compatible with various adjustable shelves in cabinets.

[0007] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: an embedded light strip and its flange concealment mounting structure, comprising: LED strip body; The contact terminal is electrically connected to the light strip body, and the contact terminal has a connection contact for outputting power; A guide rail is used to be vertically fixed to the surface of the support body, and a conductive strip extending along its length is provided on the guide rail; A flange connector is used to fix the end of the shelf. The flange connector is provided with a power taking part and a power receiving part electrically connected to the power taking part. The power taking part is electrically contacted with the conductive strip, and the power receiving part is electrically connected with the connecting contact of the contact terminal. A limiting mechanism is also provided between the flange connector and the guide rail, the limiting mechanism being used to lock the flange connector at any height position of the guide rail.

[0008] Preferably, the limiting mechanism includes a rack disposed on the guide rail and a fixed tooth disposed on the flange connecting seat, wherein the fixed tooth engages with the rack to achieve locking; the flange connecting seat is further provided with an elastic telescopic member, which is used to drive the fixed tooth to maintain engagement with the rack.

[0009] Preferably, two guide rails are provided on the same support body, one of the guide rails is electrically connected to the positive terminal of the power supply, and the other guide rail is electrically connected to the negative terminal of the power supply; the flange connector is provided with two power taking parts, and the two power taking parts are electrically contacted and engaged with the conductive strips of the positive and negative terminals respectively.

[0010] Preferably, each guide rail is provided with two parallel and electrically connected conductive strips. The guide rail includes a rectangular strip with an opening on one side, a rack on one side of the inner wall of the rectangular strip, a guide rail strip on the other side of the inner wall of the rectangular strip, and the conductive strip on the surface of the guide rail strip. A guide space is formed between the rack and the guide rail strip for the flange connector to be inserted.

[0011] Preferably, the flange connecting seat includes a fixing strip, and two adjusting connecting seats are provided on one side of the fixing strip. The distance between the two adjusting connecting seats is equal to the distance between the two guide rails, and the adjusting connecting seats are slidably disposed in the corresponding guide rails.

[0012] Preferably, the adjusting connecting seat includes a fixing block fixed to one side of the fixing strip, and a pressing block is connected to one side of the fixing block via a retractable elastic column. The pressing block is slidably disposed within the guide rail, and a contact piece is provided on the pressing block to abut against the conductive strip. A fixing tooth is provided on the side of the fixing block away from the pressing block to mesh with the rack. The retractable elastic column is used to provide elastic force to keep the fixing tooth meshing with the rack.

[0013] Preferably, the fixing strip is provided with the electrical contact part on the side away from the adjusting connector, and the electrical contact part is a positive conductive strip and a negative conductive strip, and the positive conductive strip and the negative conductive strip are electrically connected to the corresponding adjusting connector.

[0014] Preferably, one end of the light strip body is electrically connected to a terminal block, and the contact terminal is provided with a wiring hole adapted to the terminal block on the side near the light strip body. The terminal block and the wiring hole are plugged in and electrically connected.

[0015] Preferably, the fixing strip is provided with a slot on the side away from the adjusting connector, which is adapted to the positive conductive strip and the negative conductive strip respectively, and the positive conductive strip and the negative conductive strip are respectively embedded in the corresponding slot.

[0016] Preferably, the end of the shelf has a first fixing groove for accommodating the flange connector, the surface of the first fixing groove has a second fixing groove for accommodating the contact terminal, and the bottom of the shelf has a lamp groove for accommodating the lamp strip body; the flange connector is flush with the end face of the shelf after being installed in the first fixing groove.

[0017] (III) Beneficial Effects Compared with the prior art, the present invention has the following beneficial effects: (1) The light strip body is embedded in the bottom light groove of the shelf, and the flange connector is embedded in the end groove of the shelf and flush with the end face. There are no exposed wiring or protruding structures. At the same time, it fills the assembly gap between the shelf and the side plate, and the overall visual effect is flat and uniform.

[0018] (2) By meshing the rack inside the guide rail with the fixed teeth of the flange connecting seat, combined with the automatic reset characteristics of the shrink elastic column, the operation logic of "pulling outward to slide and adjusting, releasing to lock automatically" is realized. The shelf height can be adjusted without additional tools, and the ease of use is significantly improved.

[0019] (3) Two parallel conductive strips are set on a single guide rail, which are continuously contacted with the elastic contact piece to effectively reduce the risk of disconnection caused by dust accumulation and wear; at the same time, the positive and negative poles are set on two independent guide rails, and physical isolation improves the safety of low voltage electricity use.

[0020] (4) The light strip body is connected to the contact terminal through the terminal block and the contact terminal is connected to the flange connector. No welding is required throughout the process, which facilitates industrial production and on-site installation, and reduces assembly difficulty and labor costs.

[0021] (5) The guide rail can be directly installed on the side panels of various wooden and metal cabinets. The flange connector can be adapted to standard shelves of different thicknesses. There is no need to make major modifications to the cabinet structure. It is applicable to a wide range of scenarios. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the guide rail of the present invention; Figure 3 This is a schematic diagram of the end face structure of the guide rail of the present invention; Figure 4 This is a schematic diagram of the structure of the light strip body and the contact terminal of the present invention; Figure 5 This is a three-dimensional structural diagram of the flange connector of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram of the structure of the layer plate of the present invention.

[0023] In the diagram: 1-LED strip body; 2-Contact terminal; 3-Terminal; 4-Wiring hole; 5-Guide rail; 501-Rectangular strip; 502-Rack; 503-Guide rail strip; 504-Conductive strip; 505-Mounting groove; 506-Fixing hole; 507-Mounting hole; 6-Flange connector; 601-Fixing strip; 602-Adjusting connector; 6021-Fixing block; 6022-Retractable elastic column; 6023-Extrusion block; 6024-Contact piece; 6025-Fixing tooth; 603-Positive conductive strip; 604-Negative conductive strip; 605-Fasting hole; 606-Slot; 7-Layer plate; 701-First fixing groove; 702-Second fixing groove; 703-LED trough. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figure 1-7 The present invention provides a technical solution: an embedded light strip and its flange concealed installation structure, which is assembled between the side panel and the shelf of the cabinet to realize the embedded concealed installation of the shelf light strip and the height adjustable continuous power supply.

[0026] like Figure 1As shown, the overall structure includes two vertical guide rails 5 fixed to the side panel of the cabinet, a flange connector 6 embedded in the end of the shelf, a light strip body 1 installed at the bottom of the shelf, and a contact terminal 2 connecting the light strip body 1 and the flange connector 6. The two guide rails 5 are arranged parallel to each other along the height of the cabinet and are respectively connected to the positive and negative terminals of the low-voltage power supply to form a continuous power supply path; the flange connector 6 is slidably inserted into the guide rails 5, and has the dual functions of power pickup and height locking; the light strip body 1 is electrically connected to the flange connector 6 through the contact terminal 2, and can adjust its height synchronously with the shelf while maintaining power supply continuity.

[0027] I. Guide Rail Structure like Figure 2 , Figure 3 As shown, the single guide rail 5 is a long strip structure with an opening on one side. The main body is a rectangular strip 501 with a rectangular cross-section, which is integrally extruded from aluminum alloy profile, combining structural strength and electrical conductivity and heat dissipation performance. A rack 502 extending continuously along the length direction is provided on one side of the inner wall of the rectangular strip 501, with the tooth surface of the rack 502 facing the inside of the guide rail; a protruding guide rail strip 503 is provided on the other side of the inner wall of the rectangular strip 501. The guide rail strip 503 and the rack 502 are arranged opposite to each other, forming a guide chamber for the flange connecting seat 6 to be inserted and slid.

[0028] The surface of the guide rail 503 has two parallel mounting grooves 505, each containing a conductive strip 504. The two conductive strips 504 are interconnected at the ends of the guide rail 5 via conductive connectors, forming a dual-redundant power supply structure. This avoids the problem of disconnection caused by wear or dust accumulation on a single conductive strip, significantly improving power supply reliability. The conductive strip 504 is made of pure copper with a tin-plated anti-oxidation treatment to ensure long-term conductivity stability.

[0029] Several fixing holes 506 are provided on both side walls of the rectangular strip 501 for fastening the rack 502 and the guide rail 503 to the inner wall of the rectangular strip 501 with fasteners; several mounting holes 507 are provided on the closed back side of the rectangular strip 501 for vertically fixing the entire guide rail 5 to the inner surface of the cabinet side panel with screws.

[0030] II. LED Strip Assembly like Figure 4 As shown, the light strip body 1 is a rigid LED light strip with a built-in PCB circuit board and LED light-emitting chips, and an outer layer covered with a light diffusion cover to achieve soft light emission. At least one end of the light strip body 1 is electrically connected to a cylindrical terminal 3, and the terminal 3 is soldered to the positive and negative circuits inside the light strip body 1 in a one-to-one correspondence.

[0031] The contact terminal 2 adopts an insulating base with embedded conductive components. On the side closest to the lamp strip body 1, there are wiring holes 4 that mate with the terminal blocks 3 one by one. An elastic clamping conductive sleeve is installed inside the wiring hole 4. After the terminal block 3 is inserted into the wiring hole 4, it tightly abuts against the elastic clamping conductive sleeve, simultaneously achieving mechanical positioning and electrical conduction. On the side of the contact terminal 2 away from the lamp strip body 1, there is an outwardly protruding connecting contact. This contact is electrically connected to the conductive components inside the wiring hole 4, and is used to connect with the flange connecting seat 6 to draw power.

[0032] III. Flange Connector Structure like Figure 5 As shown, the flange connecting seat 6 includes a horizontally arranged fixing strip 601, which is injection molded from flame-retardant insulating engineering plastic. Two adjusting connecting seats 602 are fixedly provided on the side of the fixing strip 601 facing the guide rail 5. The spacing between the two adjusting connecting seats 602 corresponds one-to-one with the spacing between the two guide rails 5, and they can be inserted into the corresponding guide rails 5 respectively.

[0033] On the side of the fixing strip 601 away from the adjusting connector 602, there are mutually insulated positive conductive strips 603 and negative conductive strips 604, forming a grounding part; one adjusting connector 602 is electrically connected to the positive conductive strip 603, and the other adjusting connector 602 is electrically connected to the negative conductive strip 604. Two independent slots 606 are formed on this side surface of the fixing strip 601, and the positive conductive strip 603 and negative conductive strip 604 are respectively embedded and fixed in the corresponding slots 606 to achieve precise positioning and electrical isolation. Several fastening holes 605 are also formed on the surface of the fixing strip 601 for securing the flange connector 6 to the end of the shelf.

[0034] like Figure 6 As shown, a single adjusting connecting seat 602 includes a fixing block 6021, a shrinking elastic column 6022, and a pressing block 6023. The fixing block 6021 is fixedly installed on the side of the fixing bar 601, and a fixing tooth 6025 is provided on the side facing the rack 502. The tooth shape of the fixing tooth 6025 is adapted to the rack 502. When the two are engaged, they can restrict the vertical sliding of the flange connecting seat 6 along the guide rail 5, thereby achieving height locking.

[0035] The extrusion block 6023 is slidably mounted on the fixed strip 601 and can move slightly along the width of the shelf. The extrusion block 6023 has a guide groove on the side facing the guide rail 503 that matches the shape of the guide rail 503. Two elastic contact pieces 6024 are embedded in the guide groove, and the contact pieces 6024 are made of highly elastic beryllium copper. After the adjusting connector 602 is installed into the guide rail 5, the two contact pieces 6024 elastically abut against the two conductive strips 504 on the guide rail 503, forming a power-taking section, enabling the transmission of power from the conductive strips 504 to the flange connector 6.

[0036] The retractable elastic column 6022 is connected between the fixed block 6021 and the compression block 6023, providing lateral telescopic elastic force for adjusting the connecting seat. Its specific structure includes a first cylindrical column and a second cylindrical column. One end of the first cylindrical column is fixedly connected to the inner end face of the fixed block 6021, and one end of the second cylindrical column is fixedly connected to the inner end face of the compression block 6023. The first and second cylindrical columns are coaxially sleeved and can slide relative to each other axially, forming a telescopic guide structure. A compression spring is installed in the internal cavity of the retractable elastic column 6022. One end of the compression spring abuts against the inner bottom wall of the first cylindrical column, and the other end abuts against the inner bottom wall of the second cylindrical column.

[0037] Under normal conditions, the compression spring is in an extended state, pushing the first and second cylinders away from each other, which in turn causes the fixing block 6021 and the pressing block 6023 to move in opposite directions: on the one hand, the fixing tooth 6025 is pressed and engaged with the rack 502 to maintain the shelf height lock; on the other hand, the contact piece 6024 is pressed and adhered to the conductive strip 504 to maintain stable conductive contact. When subjected to lateral compressive force, the compression spring is compressed, the two cylinders contract relative to each other, the fixing tooth 6025 disengages from the rack 502, and the flange connecting seat 6 can slide freely along the guide rail 5.

[0038] IV. Sheet-mounted structure like Figure 7 As shown, the end of the shelf is provided with a first fixing groove that matches the shape of the flange connector 6. The depth of the first fixing groove is the same as the thickness of the fixing strip 601. After the flange connector 6 is embedded in the first fixing groove and the screw is fastened through the fastening hole 605, the outer surface of the fixing strip 601 is completely flush with the end face of the shelf, realizing the hidden installation of the flange structure. At the same time, it fills the assembly gap between the shelf and the side panel, improving the overall aesthetics of the cabinet.

[0039] The bottom of the first fixing groove is provided with a second fixing groove that is adapted to the shape of the contact terminal 2. The contact terminal 2 is embedded and fixed in the second fixing groove, and its outer connecting contacts respectively abut against the positive electrode conductive strip 603 and the negative electrode conductive strip 604 on the inner side of the flange connecting seat 6 to achieve electrical conduction.

[0040] The bottom of the shelf has a light strip slot along its length. The light strip body 1 is snapped into the slot and fixed. The terminal block 3 at its end is inserted into the wiring hole 4 of the contact terminal 2 to complete the embedded installation and circuit connection of the light strip.

[0041] V. Installation and Height Adjustment Working Principle The installation and height adjustment process for this structure is as follows: Guide rail installation: Fix two guide rails 5 vertically and parallel to the inside of the cabinet side panel, and connect the conductive strips 504 of the two guide rails 5 to the positive and negative terminals of the low-voltage DC power supply respectively to complete the power supply side layout.

[0042] Sheet pre-assembly: A first fixing groove and a second fixing groove are machined at the end of the shelf, and a lamp groove is machined at the bottom; the flange connector 6 is embedded into the first fixing groove and locked in place; the contact terminal 2 is embedded into the second fixing groove so that the connecting contact head abuts against the positive and negative conductive strips; the lamp strip body 1 is inserted into the lamp groove at the bottom of the shelf, and the end terminal 3 is inserted into the wiring hole 4 of the contact terminal 2 to complete the pre-assembly on the shelf side.

[0043] Shelf installation in cabinet: Press the end of the shelf inward to compress the shrink elastic column 6022, reduce the distance between the fixing tooth 6025 and the pressing block 6023, and insert the two adjusting connecting seats 602 into the opening of the guide rail 5; after releasing the pressure, the compression spring returns to its original position and extends, pushing the fixing tooth 6025 to engage and lock with the rack 502, while the contact piece 6024 presses the conductive strip 504, and the shelf installation is completed and the power supply is turned on.

[0044] Height Adjustment: When the shelf height needs to be adjusted, gently pull the shelf outward. The shelf moves the fixing strip 601 and fixing block 6021 inward, further compressing the elastic column 6022. The fixing tooth 6025 disengages from the rack 502. At this time, push the shelf up and down, and the adjusting connecting seat 602 slides vertically along the guide rail 503. During the sliding process, the contact piece 6024 always keeps in contact with the conductive strip 504, and the light strip continues to light up. After adjusting to the target height, release the shelf. The compression spring resets and pushes the fixing tooth 6025 to re-engage with the rack 502, and the shelf height is locked.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An inlaid light strip and its flange concealment installation structure, characterized in that, include: LED strip body (1); The contact terminal (2) is electrically connected to the light strip body (1), and the contact terminal (2) has a connection contact for outputting power; The guide rail (5) is used to be vertically fixed to the surface of the support body, and the guide rail (5) is provided with a conductive strip (504) extending along its length direction. A flange connector (6) is used to fix the end of the shelf. The flange connector (6) is provided with a power taking part and a power receiving part electrically connected to the power taking part. The power taking part is electrically contacted with the conductive strip (504), and the power receiving part is electrically connected with the connecting contact of the contact terminal (2). A limiting mechanism is also provided between the flange connecting seat (6) and the guide rail (5), and the limiting mechanism is used to lock the flange connecting seat (6) at any height position of the guide rail (5).

2. The embedded light strip and its flange concealment installation structure according to claim 1, characterized in that: The limiting mechanism includes a rack (502) disposed on the guide rail (5) and a fixed tooth (6025) disposed on the flange connecting seat (6). The fixed tooth (6025) engages with the rack (502) to achieve locking. The flange connecting seat (6) is also provided with an elastic telescopic member, which is used to drive the fixed tooth (6025) to maintain engagement with the rack (502).

3. The recessed light strip and its flange concealment installation structure according to claim 1, characterized in that: Two guide rails (5) are provided on the same support body. One of the two guide rails (5) has a conductive strip (504) electrically connected to the positive terminal of the power supply, and the other guide rail (5) has a conductive strip (504) electrically connected to the negative terminal of the power supply. The flange connecting seat (6) is provided with two power taking parts, and the two power taking parts are electrically connected to the conductive strips (504) of the positive and negative terminals, respectively.

4. The recessed light strip and its flange concealment installation structure according to claim 3, characterized in that: Each guide rail (5) is provided with two parallel and electrically connected conductive strips (504). The guide rail (5) includes a rectangular strip (501) with an opening on one side. A rack (502) is provided on one side of the inner wall of the rectangular strip (501), and a guide rail strip (503) is provided on the other side of the inner wall of the rectangular strip (501). The conductive strips (504) are provided on the surface of the guide rail strip (503). A guide space is formed between the rack (502) and the guide rail strip (503) for the flange connecting seat (6) to be inserted.

5. The embedded light strip and its flange concealment installation structure according to claim 1, characterized in that: The flange connecting seat (6) includes a fixing strip (601), and two adjusting connecting seats (602) are provided on one side of the fixing strip (601). The distance between the two adjusting connecting seats (602) is equal to the distance between the two guide rails (5). The adjusting connecting seats (602) are slidably disposed in the corresponding guide rails (5).

6. The recessed light strip and its flange concealment installation structure according to claim 5, characterized in that: The adjusting connecting seat (602) includes a fixing block (6021) fixed to one side of the fixing bar (601). One side of the fixing block (6021) is connected to a pressing block (6023) via a shrinkable elastic column (6022). The pressing block (6023) is slidably disposed in the guide rail (5). The pressing block (6023) is provided with a contact piece (6024) that abuts against the conductive bar (504). The side of the fixing block (6021) away from the pressing block (6023) is provided with a fixing tooth (6025) that meshes with the rack (502). The shrinkable elastic column (6022) is used to provide elastic force to keep the fixing tooth (6025) meshing with the rack (502).

7. The recessed light strip and its flange concealment installation structure according to claim 5, characterized in that: The fixing bar (601) is provided with the power receiving part on the side away from the adjusting connecting seat (602). The power receiving parts are a positive conductive bar (603) and a negative conductive bar (604). The positive conductive bar (603) and the negative conductive bar (604) are electrically connected to the corresponding adjusting connecting seat (602).

8. The recessed light strip and its flange concealment installation structure according to claim 1, characterized in that: One end of the light strip body (1) is electrically connected to a terminal block (3). The contact terminal (2) is provided with a wiring hole (4) that is compatible with the terminal block (3) on the side near the light strip body (1). The terminal block (3) and the wiring hole (4) are plugged in and electrically connected.

9. The recessed light strip and its flange concealment installation structure according to claim 5, characterized in that: The fixing strip (601) is provided with a slot (606) on the side away from the adjusting connector (602) that is adapted to the positive conductive strip (603) and the negative conductive strip (604), respectively. The positive conductive strip (603) and the negative conductive strip (604) are respectively embedded in the corresponding slot (606).

10. The recessed light strip and its flange concealment installation structure according to claim 1, characterized in that: The end of the shelf is provided with a first fixing groove for accommodating the flange connector (6), the surface of the first fixing groove is provided with a second fixing groove for accommodating the contact terminal (2), and the bottom of the shelf is provided with a lamp groove for accommodating the lamp strip body (1); the flange connector (6) is installed in the first fixing groove and is flush with the end face of the shelf.

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