Adjustable track lamp power supply box

Abstract

The utility model discloses an adjustable track lamp power supply box which comprises a head junction box, a tail junction box and middle junction boxes which can be connected in series. Each junction box comprises a box body with a wire slot and a box cover, the box bodies are hinged through a rotating shaft and a sleeve block, relative rotation can be achieved, and the whole power supply box can adapt to guide rails in different shapes such as a C shape and an L shape. Cantilever buckles are arranged on the two sides of the box body so that the box body can be rapidly installed on a guide rail. And the box cover is clamped with the notch through the clamping block, so that uncovering maintenance is facilitated. Baffles are arranged in the head and tail boxes to isolate the electrode plates and prevent short circuit. The whole device is made of plastic materials and is insulated and light. According to the design, modular length adjustment and direction adaptation are achieved, installation is flexible, maintenance is convenient, and the layout freedom degree and use safety of the guide rail lamp system are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of guide rail lamp, concretely relates to an adjustable guide rail lamp power supply box. BACKGROUND

[0002] In the field of commercial lighting, exhibition hall and high-end home lighting, the guide rail lamp system is widely welcomed due to its flexible layout. At present, the power supply box (a box for installing driving power supply, transformer and terminal) for supplying power for the guide rail lamp generally adopts a rigid structure of integral injection molding. This integrated design has serious application limitations: its shape and size are fixed, and it can only be adapted to straight guide rail sections. When the lighting design needs to use arc-shaped, circular or special-shaped tracks to create special light effects, the traditional integrated power supply box cannot be installed on the guide rail with curvature because it cannot be bent. To solve this problem, manufacturers have to individually open molds to produce special power supply boxes of corresponding shapes for each specific curvature or radius. This results in a long product line, requiring dozens of different specifications of inventory for different orders, greatly increasing the cost of molds, production, and inventory management and capital occupation, seriously restricting the promotion and implementation efficiency of customized lighting solutions. SUMMARY

[0003] In order to solve the problem of poor applicability of the existing guide rail lamp power supply box, the utility model provides an adjustable guide rail lamp power supply box. The specific technical scheme of the utility model is as follows:

[0004] An adjustable guide rail lamp power supply box, comprising: a head junction box, a tail junction box and at least one intermediate junction box connected in series between the head junction box and the tail junction box, the head junction box, the tail junction box and the intermediate junction box each comprising a box body having a wire slot and a box cover for closing the wire slot, the box bodies of the head junction box, the tail junction box and the intermediate junction box are respectively hinged, so that the two adjacent box bodies can be relatively rotated.

[0005] Further, the box body of the head junction box, the tail junction box and the intermediate junction box is provided with buckles on both sides.

[0006] Further, the buckle is an upwardly arranged cantilever buckle.

[0007] Further, the box cover of the head junction box, the tail junction box and the intermediate junction box is provided with a clamping block on both sides, and the slot of the wire slot of the box body is provided with a clamping hole matched with the clamping block.

[0008] Further, the head junction box and the tail junction box are the same in structure.

[0009] Further, the box body of the head junction box is provided with mounting holes on both sides, and a baffle is arranged between the two mounting holes.

[0010] Further, one end of the first junction box is provided with a connecting part, a rotating shaft is arranged on the connecting part, one end or both ends of the intermediate junction box is provided with a sleeve block matched with the rotating shaft, and a limiting block is arranged on the rotating shaft.

[0011] Further, the first junction box is provided with a containing cavity at the end opposite to the connecting part, buckles of the first junction box are arranged on the outer walls on both sides of the containing cavity, a safety button is arranged in the containing cavity, connecting arms are arranged on both sides of the safety button, a spring is arranged between the two connecting arms of the safety button, and the outer sides of the connecting arms are respectively kept in abutment with the buckles on the corresponding sides by the spring.

[0012] Further, the wire slot opening of the box body of the intermediate junction box faces downward, and the box body of the intermediate junction box is provided with a through hole communicating with the wire slot and the outside.

[0013] Further, the first junction box, the tail junction box and the intermediate junction box are made of plastic.

[0014] The utility model discloses a modular joint type design, which changes the traditional integrated rigid structure into a flexible and adaptive system, fundamentally solves the industry problem of power box and special-shaped track adaptation, and achieves the following multi-dimensional significant technical effects:

[0015] Realize "universal adaptation", completely replace special mold and reduce direct cost: the core innovation of the utility model lies in adopting modular series connection structure, including a first junction box, a tail junction box and at least one intermediate junction box. The box bodies are connected through the hinged mode, so that the adjacent box bodies can rotate relatively. By increasing or decreasing the number of intermediate junction boxes and adjusting the angles of the joints, the whole power box can freely bend like a chain, so as to accurately fit the arc, circle or irregular track of any radian and radius. This makes manufacturers no longer need to open a mold and produce a specific model for different radian orders, and only one universal product can meet all needs, directly saving a large amount of mold development and manufacturing cost.

[0016] Greatly simplify production and supply chain management and reduce indirect cost: the design condenses the dozens of different specifications of SKU (stock keeping unit) that may be needed in the past into only one standardized module combination. Manufacturers only need to mass-produce three universal modules of the first, tail and intermediate junction boxes, and can meet all orders through assembly. This greatly simplifies production planning, material procurement and inventory management, significantly reduces inventory holding cost and capital occupation, and realizes the dual improvement of production efficiency and supply chain flexibility.

[0017] Sturdy and flexible adjustment, ensure long-term reliability: each junction box is made of high-strength engineering plastic, the box body and the box cover are matched by the precise cooperation of the clamping block and the clamping hole to realize quick assembly and reliable sealing. The hinge part is matched by the cooperation of the rotating shaft and the sleeve block, and is provided with a limiting block, so that the rotating process is smooth, the angle can be fixed, and the joint connection is stable. This design not only gives the product the ultimate flexibility, but also guarantees the mechanical strength, electrical safety and durability of the product during long-term use in complex lighting engineering.

[0018] Convenient installation, improve construction efficiency: the modular design enables the power box to be combined and adjusted on site according to the shape of the track, and the installation personnel do not need to pre-order a specific shape of the finished product. The wire slot design facilitates wiring, and the overall scheme greatly improves the construction efficiency and feasibility of the lighting system, especially the complex artistic track layout. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of the power box of the guide rail lamp in an embodiment of the utility model;

[0020] Figure 2 It is a top view structure schematic view of the power box of the guide rail lamp in an embodiment of the utility model;

[0021] Figure 3 It is an exploded schematic view of the power box of the guide rail lamp in an embodiment of the utility model Figure 1 ;

[0022] Figure 4 It is an exploded schematic view of the power box of the guide rail lamp in an embodiment of the utility model Figure 2 ;

[0023] Figure 5 It is an internal structure schematic view of the first junction box in an embodiment of the utility model;

[0024] Figure 6 It is a sectional view schematic view of the first junction box in an embodiment of the utility model;

[0025] Figure 7 It is Figure 4 An enlarged schematic view of position A in the utility model;

[0026] Figure 8 It is a sectional view schematic view of the power box of the guide rail lamp in an embodiment of the utility model.

[0027] Reference signs: first junction box 1, tail junction box 2, intermediate junction box 3, wire slot 4, box body 5, box cover 6, buckle 7, clamping block 8, clamping hole 9, mounting hole 10, connecting part 11, rotating shaft 12, sleeve block 13, limiting block 14, containing cavity 15, safety button 16, through hole 17, baffle 18, connecting arm 19, spring 20, bolt rod 21, screw hole 22. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0029] In the description of this utility model, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are 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. They should not be construed as limiting the specific protection scope of this utility model.

[0030] Furthermore, 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. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature, and in this description of the utility model, "at least" means one or more, unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this utility model, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Above," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0034] like Figures 1 to 8 As shown, an adjustable rail light power supply box includes: a first junction box 1 as the starting point of the queue, a last junction box 2 as the ending point of the queue, and at least one intermediate junction box 3 connected in series between the first junction box 1 and the last junction box 2. Each of the first junction box 1, the last junction box 2, and each intermediate junction box 3 includes a box body 5 with an internal wiring channel 4 and a cover 6 for enclosing and protecting the channel 4. The combined structure of the box body 5 and the cover 6 can be identical based on a standardized design, or it can vary slightly in structure depending on the different functional requirements of the end or intermediate positions. Crucially, the box bodies 5 of the first junction box 1, the last junction box 2, and the intermediate junction boxes 3 are interconnected by a hinge structure, allowing any two adjacent box bodies 5 to rotate relative to each other at a certain angle. Based on this modular design, users can flexibly install different numbers of intermediate junction boxes 3 between the first junction box 1 and the last junction box 2 to extend the overall length according to the actual installed rail length. Meanwhile, thanks to the rotatable connection between adjacent boxes 5, the assembled rail light power box can be installed on lighting rails of different lengths and different curvatures (such as C-shaped, L-shaped or S-shaped), greatly improving installation adaptability and flexibility.

[0035] In one embodiment, to facilitate fixing the entire power supply box assembly to the guide rail, clips 7 are provided on both sides (usually the left and right sides of the box body 5) of the first junction box 1, the tail junction box 2, and the middle junction box 3. The entire rail light power supply box is directly snapped into the guide groove of the standard guide rail by these clips 7, realizing quick and tool-free installation and removal of the rail light power supply box.

[0036] In one embodiment, the buckle 7 is specifically designed as an upward-facing (i.e., towards the guide rail installation direction) elastic cantilever buckle, which uses the elastic deformation of the cantilever to engage with the T-slot or similar structure of the guide rail.

[0037] As one of the embodiments, in order to achieve the rapid opening and closing of the box cover 6, facilitate daily maintenance, the two side edges of the box cover 6 of the first junction box 1, the tail junction box 2 and the intermediate junction box 3 are provided with clamping blocks 8. Correspondingly, the slot edge of the wire slot 4 of the box body 5 is provided with a clamping hole 9 matched with the shape of the clamping block 8. When the slot opening of the wire slot 4 is downward, the clamping hole 9 is arranged at the lower end of the two side walls of the box body 5. The box cover 6 is firmly fixed in the slot opening of the wire slot 4 in the embedded clamping manner by aligning and pressing the clamping blocks 8 on both sides into the clamping holes 9 of the box body 5. When maintenance is needed, the user can easily remove the box cover 6, so as to repair, check or reinstall the wire connection, terminal or circuit module in the wire slot 4.

[0038] As one of the embodiments, in order to simplify production and assembly, reduce the types of materials, the first junction box 1 and the tail junction box 2 can adopt the same structure and parts.

[0039] As one of the embodiments, the inside of the box body 5 of the first junction box 1 is provided with mounting holes 10 (or mounting positions) for mounting electrical connecting parts on both sides. An integral baffle 18 is arranged between the two mounting holes 10 in the box body 5. These mounting holes 10 are used to mount electrode sheets (or conductive terminals) for electrical connection with the internal conductive copper strip of the guide rail. The core function of the middle baffle 18 is to physically separate the two electrode sheets, effectively prevent short circuit between them due to accidental contact, and ensure the safety of electricity use.

[0040] As one embodiment, the hinged connection mechanism between the boxes 5 is as follows: One end of the box 5 of the first junction box 1 is provided with a connecting part 11 (when the groove 4 faces downwards, the connecting part 11 is located at the top of the box 5), and a rotating shaft 12 is integrally provided on the connecting part 11. Correspondingly, one or both ends of the intermediate junction box 3 are provided with a sleeve block 13 (or bushing) matching the diameter of the rotating shaft 12, and the sleeve block 13 has a shaft hole. A limiting block 14 is provided on the rotating shaft 12 to prevent the sleeve block 13 from axially dislodging. The limiting block 14 is a bolt structure, and a screw hole 22 is provided in the rotating shaft 12. After the sleeve block 13 is fitted into the rotating shaft 12, the limiting block 14 will be screwed into the screw hole 22 through the bolt rod 21, and then the bolt head of the limiting block 14 will restrict the sleeve block 13 in the rotating shaft 12. Because the first junction box 1 and the tail junction box 2 have the same structure, the tail junction box 2 also has a connecting part 11 with a rotating shaft 12. Therefore, when only one intermediate junction box 3 needs to be connected in series between the first junction box 1 and the last junction box 2, both ends of this intermediate junction box 3 need to be sleeve blocks 13 with shaft holes to connect the rotating shafts 12 of both the first and last boxes simultaneously. When multiple intermediate junction boxes 3 need to be connected in series between the first junction box 1 and the last junction box 2, except for the intermediate junction boxes 3 at the two ends which have sleeve blocks 13 at one end, the intermediate junction box 3 in the middle can be designed with a sleeve block 13 at one end (for connecting the rotating shaft 12 at the previous end) and a connecting part 11 with a rotating shaft 12 at the other end (for connecting the sleeve block 13 at the next end), and so on, forming a chain hinge. Of course, one intermediate junction box 3 can also have a sleeve block 13 with a shaft hole at one end to connect the rotating shaft 12 of the first junction box 1, and the other end of the intermediate junction box 3 is the rotating shaft 12; while the other intermediate junction box 3 has sleeve blocks 13 with shaft holes at both ends, which can connect the rotating shafts 12 of the previous intermediate junction box 3 and the last junction box 2 simultaneously.

[0041] In one embodiment, the first junction box 1 has a receiving cavity 15 at the end opposite to the connecting part 11. The left and right outer walls of the receiving cavity 15 of the first junction box 1 each have an outwardly protruding latch 7. A safety button 16 is provided in the receiving cavity 15. Connecting arms 19 are provided on both sides of the safety button 16. A spring 20 is provided between the two connecting arms 19 of the safety button. The spring 20 keeps the outer surface of the connecting arm 19 in contact with the corresponding latch 7, pushing the latch 7 outward. When the first junction box 1 is installed on the guide rail, it will fall downward due to gravity. At this time, the latch 7 will be pushed inward by the upward force of the guide rail. If the latch 7 retracts too much inward, the first junction box will fall off the guide rail. Therefore, when the user installs the first junction box 1 onto the guide rail, the safety button 16 will be horizontally inserted into the receiving cavity 15. The spring 20 in the safety button 16 will push the connecting arms 19 on both sides of the safety button, causing the connecting arms 19 to push the buckle 7 outward, so that the buckle 7 is locked in the guide rail, thereby enhancing the stability of the first junction box 1 in the guide rail.

[0042] As one of the embodiments, considering the wiring aesthetics and maintenance convenience, the slot of the wire slot 4 of the box body 5 of the intermediate junction box 3 is usually designed to be downward (i.e. towards the ground), so that the wire can be put in or taken out from below, which is convenient for subsequent maintenance of the track lamp power box, and the appearance is also more neat. Further, the top of the box body 5 of the intermediate junction box 3 can be provided with one or more through holes 17 communicating the internal wire slot 4 and the external environment as the inlet and outlet holes of the power line. When a plurality of intermediate junction boxes 3 are connected in series between the first junction box 1 and the tail junction box 2, not every one needs the top through hole 17, and usually, according to the wiring needs, the top through hole 17 is provided on the box body 5 of one or several intermediate junction boxes 3, which can meet the requirements.

[0043] As one of the embodiments, for safety, light weight and cost considerations, the main materials of the first junction box 1, the tail junction box 2 and the intermediate junction box 3 are all selected from engineering plastics (such as flame-retardant ABS, PC, etc.). This material selection has double advantages: first, it can significantly reduce the overall weight of the entire track lamp power box, which is convenient for carrying and installation; second, plastic itself is an excellent insulator, which can effectively isolate the current and prevent electric shock, ensuring user safety.

[0044] The utility model discloses a modular joint type design, which changes the traditional integrated rigid structure into a flexible and adaptive system, fundamentally solves the industry problem of power box and special-shaped track adaptation, and achieves the following multi-dimensional significant technical effects:

[0045] Realize "universal adaptation", completely replace special mold, reduce direct cost: the core innovation of the utility model lies in adopting modular series connection structure, including the first junction box 1, the tail junction box 2 and at least one intermediate junction box 3. The box bodies 5 are connected through the hinge mode, so that the adjacent box bodies 5 can rotate relatively. By increasing or decreasing the number of intermediate junction boxes 3 and adjusting the angle of each joint, the entire power box can be freely bent like a chain, so as to accurately fit the arc-shaped, circular or irregular-shaped track of any radian and radius. This makes manufacturers no longer need to open mold and produce specific models for different radian orders, and only one universal product can meet all needs, directly saving a large amount of mold development and manufacturing cost.

[0046] Greatly simplify production and supply chain management, reduce indirect cost: the design condenses the dozens of different specifications of SKU (stock unit) that may be needed in the past into only one standardized module combination. Manufacturers only need to mass-produce three universal modules of the first, tail and intermediate junction boxes 3, which can meet all orders through assembly. This greatly simplifies production planning, material procurement and inventory management, significantly reduces inventory holding cost and capital occupation, and realizes the double improvement of production efficiency and supply chain flexibility.

[0047] Sturdy structure and flexible adjustment ensure long-term reliability: each junction box is made of high-strength engineering plastic, and the box body 5 and the box cover 6 are quickly assembled and reliably sealed through the precise cooperation of the clamping block 8 and the clamping hole 9. The hinge part cooperates with the shaft 12 and the sleeve block 13, and is provided with a limiting block, which ensures smooth rotation and angle fixation, and stable joint connection. This design not only gives the product ultimate flexibility, but also ensures its mechanical strength, electrical safety and durability in long-term use in complex lighting projects.

[0048] Convenient installation, improving construction efficiency: modular design allows the power box to be combined and adjusted on site according to the shape of the track, and the installation personnel do not need to pre-order specific shape finished products. The wire slot 4 is designed for wiring, and the overall scheme greatly improves the construction efficiency and feasibility of the lighting system, especially the complex artistic track layout.

[0049] In the description of the description, the description of the terms "in combination with an embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model, and the illustrative description of the above terms in the specification does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. The connection mode described in the description has obvious effect and practical effect.

[0050] Through the above description of structure and principle, those skilled in the art should understand that the utility model is not limited to the above specific embodiments, and improvements and substitutions of known technologies in the art based on the utility model fall within the protection scope of the utility model, which should be limited by each claim.

Claims

1. An adjustable track light power pack, characterized by, The utility model relates to a kind of terminal boxes, including: First terminal box, tail terminal box and at least one intermediate terminal box connected in series between first terminal box and tail terminal box, the first terminal box, tail terminal box and intermediate terminal box all include the box body with wire slot and the box cover for closing wire slot, the box body of first terminal box, tail terminal box and intermediate terminal box is respectively hinged, so that the relative rotation between two adjacent box bodies can be carried out.

2. The adjustable track light power pack of claim 1, wherein, Two sides of the box body of the first terminal box, the tail terminal box and the intermediate terminal box are provided with buckles.

3. The adjustable track light power pack of claim 2, wherein, The buckle is a cantilever buckle arranged upward.

4. The adjustable track light power pack of claim 2, wherein, Two sides of the box cover of the first terminal box, the tail terminal box and the intermediate terminal box are provided with clamping blocks, and the slot of the box body is provided with a clamping hole matched with the clamping block.

5. The adjustable track light power pack of claim 4, wherein, The first terminal box and the tail terminal box are the same structure.

6. The adjustable track light power pack of claim 5, wherein, Two sides of the box body of the first terminal box are provided with mounting holes, and a baffle is arranged between the two mounting holes.

7. The adjustable track light power pack of claim 6, wherein, One end of the first terminal box is provided with a connecting portion, the connecting portion is provided with a rotating shaft, one end or both ends of the intermediate terminal box is provided with a sleeve block matched with the rotating shaft, and the rotating shaft is provided with a limiting block.

8. The adjustable track light power pack of claim 7, wherein, The first terminal box is provided with a receiving cavity at the end opposite to the connecting portion, the buckle of the first terminal box is arranged on the outer wall on both sides of the receiving cavity, the receiving cavity is provided with a safety button, two sides of the safety button are provided with connecting arms, a spring is arranged between the two connecting arms of the safety button, and the outer side of the connecting arm is respectively in abutment with the buckle on the corresponding side by the spring.

9. The adjustable track light power pack of claim 4, wherein, The slot of the box body of the intermediate terminal box is downward, and the top of the box body of the intermediate terminal box is provided with a through hole communicating with the wire slot and the outside.

10. The adjustable track light power pack of claim 1, wherein, The material of the first terminal box, the tail terminal box and the intermediate terminal box is plastic.

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