Multi-specification self-adaptive junction box

Abstract

The utility model provides a multi-specification self-adaptive junction box. The junction box comprises a junction box lower cover, a junction box upper cover, a wiring terminal and a wire pressing plate. Wherein the junction box upper cover is provided with a fixing hole; the junction box lower cover is provided with a fastener opening; the upper cover and the lower cover of the junction box are both provided with wire pressing teeth, the adjusting screws penetrate through the fixing holes to be connected with the threaded openings to be matched with the wire pressing teeth arranged on the upper cover and the lower cover of the junction box to clamp an input wire, and meanwhile the wire pressing plate presses an output wire between the wire pressing plate and the lower cover of the junction box through the fixing screws. Through the shape design of the upper cover and the lower cover of the junction box, the junction box is more stable in structure, can adapt to a relatively narrow space and has certain safety; the junction box can adapt to wires of different specifications through cooperation of the adjusting screws, the threaded openings, the fixing holes and the wire pressing teeth, the junction box only has one wire pressing mode of locking screws, and the lower cover is only used for guiding and is not provided with a buckle, so that mutual interference is avoided during disassembly.

Description

Technical Field

[0001] The utility model is a multi-specification adaptive junction box, which relates to the demand that indoor lighting products need to be interconnected and have a large span of wiring wire diameters. Background Art

[0002] Many indoor lighting applications require the simultaneous installation of several or even dozens of fixtures, necessitating a product like a splitter. The diameter of the interconnecting main wires also varies depending on the number of fixtures, requiring a junction box with sufficient wiring capacity. Multiple rows of crimping teeth and screw-locking technology are used to maximize the applicability of the wire material.

[0003] For example, a junction box disclosed on the China Patent Network has an application number of CN202322960075.1. This patent clamps the input wires by snapping together the wire-pressing teeth of the upper cover and the lower cover of the junction box to achieve the effect of preventing pulling. However, the snap position of the junction box described in this patent is relatively fixed, and it is difficult to adapt to input wires of different sizes, especially for smaller input wires. It is difficult for the junction box described in this patent to clamp the input wires of that size. Utility Model Content

[0004] Based on the issues mentioned in the background technology, this utility model proposes a multi-standard adaptive junction box. This aims to address the problem of existing conventional indoor lighting fixtures requiring no dedicated interconnection structure. This junction box allows for quick wiring and accommodates a wide range of wire diameters. The specific technical solution is as follows: the side profile of the junction box's upper cover is Z-shaped; the side profile of the junction box's lower cover is trapezoidal in shape, with a rectangular section extending from one end of the trapezoid, ensuring that the upper boundary of the lower cover is consistent with the lower boundary of the upper cover; the upper cover is hinged to one end of the lower cover; and both the lower and upper covers are equipped with a plurality of wire pressure relief teeth.

[0005] Preferably, the upper cover of the junction box is provided with a fixing hole; and the lower cover of the junction box is provided with a threaded opening.

[0006] Preferably, the center position of the threaded opening is aligned with the center position of the fixing hole.

[0007] Preferably, the adjusting screw passes through the fixing hole and is connected to the threaded opening, and cooperates with the wire pressing teeth provided on the lower cover and the upper cover of the junction box to clamp the external wires.

[0008] Preferably, two rows of wire pressing teeth are provided on both sides of the threaded opening.

[0009] Preferably, a row of wire-pressing teeth is provided at one end of the junction box upper cover away from the end hinged to one end of the junction box lower cover.

[0010] Preferably, a row of wire-pressing teeth is provided at an end of the junction box lower cover away from the end hinged to one end of the junction box upper cover.

[0011] Preferably, when the lower cover of the junction box and the upper cover of the junction box are connected, a wiring hole for the output line to pass through is formed at one hinged end.

[0012] Preferably, when the output wire passes through the wiring hole, the output wire can be fixed by a wire pressing plate.

[0013] Preferably, a threaded hole is provided at one hinged end of the wire pressing plate and the lower cover of the junction box, and the wire pressing plate is connected to the lower cover of the junction box by a fixing screw so that the output wire is pressed tightly between the wire pressing plate and the lower cover of the junction box.

[0014] The utility model has the following beneficial effects: multiple rows of crimping teeth of different heights can simultaneously meet the crimping requirements of wires of different diameters and materials; the junction box has only one crimping method, which is locking screws, and the lower cover is only used as a guide without a buckle, so there will be no interference when disassembling; it has certain stability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of the junction box of the present utility model.

[0016] Figure 2 This is a schematic diagram of the connection of 2 times 0.75 flat wires to the junction box of the utility model.

[0017] Figure 3 This is a schematic diagram of the connection of a 3 times 2.5 circle wire to the junction box of the utility model.

[0018] Figure 4 This is a schematic diagram of the connection of a 3 times 0.75 circle wire to the junction box of the utility model.

[0019] exist Figure 1 In the figure, 1. lower cover of the junction box; 2. output line; 3. terminal; 4. wire pressing plate; 5. fixing screw; 6. upper cover of the junction box; 7. adjusting screw; 8. fixing hole; 9. threaded opening; 10. wire pressing tooth, the wire pressing tooth 10 includes: 101, wire pressing tooth of the upper cover of the junction box; 102, wire pressing tooth of the lower cover of the junction box; two rows of wire pressing teeth 103 and 104 on both sides of the threaded opening. DETAILED DESCRIPTION

[0020] like Figure 1The figure shows a schematic diagram of a multi-specification adaptive junction box structure, wherein the junction box includes a junction box lower cover 1, a junction box lower cover 6, a terminal 3, a wire pressing plate 4, and a fixing screw 5; wherein the junction box upper cover is provided with a fixing hole 8 and a row of wire pressing teeth 10, the junction box lower cover 6 is provided with a threaded opening 9, and wire pressing teeth 103 and 104 are provided on both sides of the threaded opening.

[0021] The side shape of the junction box upper cover 6 is "Z"-shaped; the side shape of the junction box lower cover 1 is roughly trapezoidal, and a rectangular section extends from one end of the trapezoid, so that the upper boundary shape of the junction box lower cover 1 is roughly consistent with the lower boundary shape of the junction box upper cover 6; such a design brings certain benefits. First, it enhances the structural strength of the junction box, making it less likely to deform when subjected to impact or pressure, thereby improving durability; secondly, the close fit of the upper cover and the lower cover helps to improve the sealing performance of the junction box, prevent moisture, dust and other pollutants from entering the interior, and extend the service life of the wires and components in the junction box; in addition, the shapes of the upper cover and the lower cover are designed to match each other, which simplifies the assembly process, makes installation and disassembly easier, and reduces the possibility of loosening; at the same time, by optimizing the shape, the junction box can make full use of the internal space, reduce the volume, and is suitable for installation in a small space.

[0022] The junction box upper cover 6 is hinged to one end of the junction box lower cover 1, and the junction box upper cover 6 is hinged at one end and is provided with two opposite protruding structures, and the junction box lower cover 1 is hinged at one end and is provided with connecting holes on opposite sides, and the protruding structures of the junction box upper cover are connected to the connecting holes so that the junction box upper cover 6 is connected to the junction box lower cover, and the wiring terminal 3 is connected to the junction box lower cover, and the junction box lower cover 1 is provided with two protruding structures so that the groove in the wiring terminal 3 can be connected to the junction box lower cover 1; the junction box lower cover 1 and the junction box upper cover 6 are connected at one end of the hinge to form a wiring port for the output line 2 to pass through, when the output line 2 is connected to the wiring terminal through the wiring hole, the wire pressing plate 4 can be used to press the output line 2, and the wire pressing plate 4 and the junction box lower cover 1 are provided with two threaded holes, so that when the output line 2 passes through the wiring hole, the wire pressing plate 4 presses the output line 2 between the wire pressing plate 4 and one end of the junction box lower cover 1 by fixing screws 5.

[0023] The upper cover 6 and the lower cover 1 are hinged at one end to facilitate opening and closing operations. The hinged end of the upper cover 6 is designed with raised structures on two opposite sides, and the corresponding end of the lower cover 1 is provided with connecting holes on two opposite sides. The raised structures are inserted into the connecting holes to achieve a tight fit between the upper cover and the lower cover. The wiring terminal 3 is installed on the lower cover 1, and the raised structure of the lower cover 1 provides a connection point for the groove of the wiring terminal 3, ensuring the stable fixation of the wiring terminal. A wiring port is formed at the connection between the lower cover 1 and the upper cover 6 of the junction box, providing a passage path for the output line 2. When the output line 2 is connected to the wiring terminal 3 through the wiring hole, the wire pressing plate 4 plays its role. By cooperating with the threaded hole on the lower cover 1, the output line 2 is pressed tightly using the fixing screw 5 to ensure that the connection between the wire and the wiring terminal is both firm and stable.

[0024] Adjustment screw 7 passes through the fixing hole of junction box upper cover 6 and connects to threaded opening 9 provided on junction box lower cover 1. This, in conjunction with wire crimping teeth 10 provided on both junction box upper cover 6 and junction box lower cover 1, allows the junction box to compress the incoming wires. Two rows of wire crimping teeth 103 and 104 are provided on opposite sides of threaded opening 9. A row of wire crimping teeth 101 is provided on the end away from the hinged connection with one end of junction box upper cover 6; a row of wire crimping teeth 102 is provided on the end of junction box upper cover 6 away from the hinged connection with one end of junction box lower cover 1.

[0025] like Figures 2 to 4 The schematic diagram of wires of different specifications being connected to the junction box is shown. The junction box upper cover 6 is connected to the junction box lower cover 1 at one end of which a wire crimping tooth is provided to form a wiring port for the input wire to pass through, so that the input wire is connected to the wiring terminal. By adjusting the connection between the adjusting screw 7 and the threaded port 9, input wires of different specifications can be clamped between a row of wire crimping teeth 10 of the junction box lower cover 1 and a row of wire crimping teeth 101 and wire crimping teeth 102 of the junction box upper cover 6. The two rows of wire crimping teeth 103 and 104 on both sides of the threaded port 9 provided on the junction box lower cover 1 enable the junction box to have a certain anti-pull effect when connecting input wires of different specifications and materials.

[0026] In the field of electrical wiring, screw-type and snap-on terminal blocks each have their own characteristics and advantages. However, screw-type terminal blocks offer significant advantages in several areas. First, they provide greater connection stability. Using screws as a fastening method ensures a very secure connection between the wire and the terminal block, which is crucial in electrical systems. The tightening force of the screws can be adjusted as needed to accommodate wires of varying thicknesses and materials, ensuring a reliable connection. In contrast, snap-on terminal blocks, while quick to install, may have limited fastening force, particularly when connecting thicker or stiffer wires, and may not provide the same stability as screw-type terminals. Second, screw-type terminal blocks offer safety advantages. Connection points in electrical systems are potential sources of failure. Unstable connections can lead to increased resistance, heat buildup, and even fire. Screw-type terminal blocks, by providing adjustable tightening force, can reduce these risks. Snap-on terminal blocks, on the other hand, can experience loosening due to wear or deformation of the clips, increasing safety risks. Furthermore, screw-type terminal blocks offer improved durability and long-term performance. Mechanical connections using screws and nuts maintain their performance over extended use and are less susceptible to environmental factors such as temperature fluctuations, humidity, and chemical corrosion. In contrast, snap-on connections may be more susceptible to these factors, leading to performance degradation. Furthermore, screw-adjustable junction boxes offer greater flexibility and adaptability. Different electrical systems may require connecting wires of varying types and specifications. Screw-adjustable junction boxes can accommodate these variations, allowing users to select the appropriate tightening force based on their specific needs. However, the adaptability of snap-on junction boxes may be limited, particularly when dealing with wires of unusual specifications or with specialized requirements. Furthermore, screw-adjustable junction boxes are generally more robust and durable in design. Due to the higher mechanical strength of the screw connection, the overall structure of the junction box can be more compact and robust. This not only improves the physical protection of the junction box, but also makes it more suitable for use in harsh industrial or outdoor environments.

[0027] When the junction box is designed to be laid flat, the two rows of crimping teeth 103 and 104 on either side of the threaded opening 9 on the crimping teeth 102 on the lower cover 1 offer several advantages. First, they ensure the stability of the junction box, as the evenly distributed crimping teeth 10 prevent the wires from shifting due to movement or vibration. This uniform pressure distribution also helps reduce localized stress on the wires, thereby protecting them from damage and extending their service life. Second, the design of the crimping teeth 10 simplifies the wiring process, making the entry and exit of wires more orderly, easier to manage, and easier to identify. This not only improves wiring efficiency but also enhances the contact reliability between the wires and the terminal blocks, reducing the increased resistance and heat problems caused by poor contact. Furthermore, the arrangement of the crimping teeth 10 is highly adaptable, capable of accommodating wires of different diameters, providing a flexible solution to meet diverse wiring needs. Furthermore, the crimping teeth 10 make the removal and installation of wires faster and more convenient, thereby improving maintenance efficiency. The structural rigidity of the junction box is also enhanced by the presence of the wire crimping teeth 10, allowing it to withstand greater physical pressure and is suitable for environments that may be subject to pressure or impact from above. At the same time, optimized space utilization allows for more efficient wire organization, maintaining a neat and aesthetically pleasing interior of the junction box. The wire crimping teeth 10 also help reduce electromagnetic interference by reducing the relative movement of wires. This design is not only convenient for current use, but also facilitates possible future system expansion. Production efficiency is also improved due to the simplified assembly process, ultimately enhancing the user experience, allowing users to enjoy the convenience of convenient operation and stable connection.

[0028] When the junction box is hung, the two rows of wire crimping teeth 10 on either side of the threaded opening 9 on the lower cover 1 offer a number of advantages and benefits. First, this design significantly enhances the stability of the junction box. Since the junction box is wall-mounted, the weight of the wires and any external forces can affect its stability. The four evenly distributed wire crimping teeth 10 effectively secure the wires, preventing them from falling or shifting due to gravity or external forces, ensuring the stability of the junction box during use. Second, safety is an essential design consideration. The stability of the electrical connection is directly related to safe use. A junction box mounted against a wall may experience additional stress due to uneven wall surfaces or slight variations in the installation angle. The wire crimping teeth 10 evenly distribute this stress, reducing stress concentration at the wire connection points, thereby reducing the risk of electrical failure and improving overall electrical safety. Adaptability is also a major advantage of this design. In actual applications, the junction box may need to connect wires of varying numbers and specifications. The positioning of the four rows of wire crimping teeth 10 provides more wiring options, allowing the junction box to adapt to diverse electrical connection needs, ensuring a suitable crimping position for both thin and thick wires. Ease of use is also a key design consideration. When using a junction box, users may need to adjust the wires to varying thicknesses. The positioning of the crimping teeth 10 makes this process simple and convenient, allowing users to easily adjust the crimping teeth 10 to fit the wires without the need for complex operations or tools. Reducing wear is another important benefit. Junction boxes mounted against a wall can cause wire wear due to friction from the wall. The crimping teeth 10 protect the wires from wear, extending their lifespan and reducing the frequency of replacement due to wear. Improving reliability is another major advantage of this design. The stability of the wire connection is particularly important in environments subject to vibration or temperature fluctuations. The crimping teeth 10 secure the wires more reliably than simple clips or clamps, maintaining a stable connection and reducing electrical problems caused by unstable connections. Ease of maintenance is a key feature of this design. When wires need to be maintained or replaced, the crimping teeth 10 make removal and installation easier, improving maintenance efficiency and reducing maintenance time and costs. Saving space is an additional benefit of this design. When installing a junction box on a wall with limited space, the wire crimping teeth 10 can effectively utilize space, reduce the area occupied by the junction box, make the junction box more compact, and adapt to more installation environments. The reinforced structure is an important aspect of this design. The design of the wire crimping teeth 10 can enhance the structural stability of the junction box, especially when it needs to carry heavier wires or multiple connection points, it can provide additional support to ensure the stability of the junction box. Flexibility is a significant feature of this design. Even when installed against a wall, the wire crimping teeth 10 allow the user to flexibly adjust the position of the junction box according to the actual layout of the wires to adapt to different installation environments and needs.Improving installation efficiency is a key advantage of this design. During installation, the crimping teeth 10 quickly secure the wires, reducing installation time and improving overall installation efficiency, making the junction box installation faster and more convenient. In summary, the positioning design of the crimping teeth 10 provides a number of benefits for wall-mounted junction boxes, including stability, safety, adaptability, ease of operation, aesthetics, reduced wear, improved reliability, easier maintenance, space savings, enhanced structure, flexibility, and improved installation efficiency.

[0029] The present utility model has explained its purpose, technical solutions and beneficial effects in depth through specific embodiments, but these embodiments are only used as examples to demonstrate the application of the invention and do not constitute a limitation on the scope of protection of the present invention. We explicitly point out that any reasonable modification, equivalent replacement or technical improvement under the guidance of the spirit and principles of the present invention should be included in the scope of protection of the present utility model. This means that as long as these changes do not deviate from the core idea and basic function of the invention, they should be protected by patent rights. The scope of protection of the present invention should be broad, including all direct and obvious variants and non-obvious innovations that technical experts can reasonably deduce based on the disclosure of the present invention. This broad protection is intended to promote further research and development based on the present invention, while ensuring that its innovation and practicality are fully legally protected.

Claims

1. A multi-specification adaptive junction box, characterized by: The side profile of the junction box upper cover (6) is in a "Z" shape; The side surface of the junction box lower cover (1) is in the shape of a trapezoid as a whole, and a rectangular section extends from one end of the trapezoid, so that the upper boundary shape of the junction box lower cover (1) is generally consistent with the lower boundary shape of the junction box upper cover (6); The junction box upper cover (6) is hinged to one end of the junction box lower cover (1); The junction box lower cover (1) and the junction box upper cover (6) are both provided with a plurality of pressure wire emitting teeth (10).

2. The multi-specification adaptive junction box according to claim 1, characterized in that: The junction box upper cover (6) is provided with a fixing hole (8); the junction box lower cover (1) is provided with a threaded opening (9).

3. The multi-specification adaptive junction box according to claim 2, characterized in that: The center position of the threaded opening (9) is aligned with the center position of the fixing hole (8).

4. The multi-specification adaptive junction box according to claim 2 or 3, characterized in that: The adjusting screw (7) passes through the fixing hole (8) and is connected to the threaded opening (9), and cooperates with the wire pressing teeth (10) provided on the lower cover (1) and the upper cover (6) of the junction box to clamp the external wires.

5. The multi-specification adaptive junction box according to claim 2, characterized in that: Two rows of wire pressing teeth (10) are provided on both sides of the threaded opening.

6. The multi-specification adaptive junction box according to claim 1, characterized in that: A row of wire pressing teeth (10) is provided at one end of the junction box upper cover (6) away from the end hinged to the junction box lower cover (1).

7. The multi-specification adaptive junction box according to claim 1, characterized in that: A row of wire pressing teeth (10) is provided at one end of the junction box lower cover (1) away from the end hinged to the junction box upper cover (6).

8. The multi-specification adaptive junction box according to any one of claims 5 to 7, characterized in that The lower cover (1) of the junction box is provided with a trapezoidal wiring port at one hinged end, and the wiring port is for the output line (2) to pass through.

9. The multi-specification adaptive junction box according to claim 8, characterized in that: When the output line (2) passes through the wiring port, the output line (2) can be fixed by the wire pressing plate (4).

10. The multi-specification adaptive junction box according to claim 9, characterized in that: A threaded hole is provided at one end of the hinged connection between the wire pressing plate and the lower cover (1) of the junction box. The wire pressing plate (4) is connected to the lower cover (1) of the junction box via a fixing screw (5), so that the output wire (2) is pressed tightly between the wire pressing plate (4) and the lower cover (1) of the junction box.

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