Junction box
By using modular junction box design and safety isolation measures, the problems of complex installation and safety hazards of existing junction box technology are solved, and a simple, safe and efficient electrical connection is achieved.
Patent Information
- Application Number
- CN202422970794.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-03
AI Technical Summary
Existing branching technology suffers from problems such as complex installation, large space occupation, and potential safety hazards.
It adopts a modular junction box design, including a base, conductive plate and fasteners. The wiring is safely isolated by partitions and limit blocks, and protected by a safety cover. The conductive plate and the connection hole are connected by fasteners, supporting free combination of three-phase four-wire and single-phase.
It achieves simple assembly, safe and reliable electrical connections, reduces the space occupied, meets the needs of multiple wire connections, improves assembly efficiency and ensures electrical safety.
Smart Images
Figure CN223540239U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power supply equipment technology, and in particular to a junction box. Background Technology
[0002] Existing branching technology uses a layout of multiple copper busbars connected individually. This structure is complex to install inverted configurations, cannot be installed in the front, and is time-consuming and labor-intensive. Moreover, the copper busbars are directly exposed, leaving the conductors exposed and posing a safety hazard. The arrangement of multiple copper busbars in a planar layout occupies a lot of space and results in unsightly wiring. Utility Model Content
[0003] This utility model provides a junction box, which aims to solve the problems of complex installation, large space occupation, and safety hazards in junction box technology.
[0004] This utility model provides a junction box, including a base, a conductive plate, and fasteners. The base has multiple wiring sections, including a live wire wiring section and a neutral wire wiring section. Each section is connected to a conductive plate. Each conductive plate has an input terminal and at least one output terminal. The input wire is connected to the conductive plate of the input terminal through the fasteners, and the output wire is connected to the conductive plate of the output terminal through the fasteners. The base has a partition, which is located between the input terminal and the output terminal, or between two adjacent output terminals.
[0005] As a further improvement of this utility model, the adjacent wiring sections on the base are staggered in a stepped structure.
[0006] As a further improvement of this utility model, the base is divided into two wiring directions, each wiring direction contains at least one wiring section, and adjacent wiring sections in the same wiring direction are staggered in a stepped structure.
[0007] As a further improvement of this utility model, the partition is disposed in the live wire connection area of the base.
[0008] As a further improvement of this utility model, the base is provided with a support block in each wiring section, and the conductive plate is placed on the support block.
[0009] As a further improvement of this utility model, in the live wire connection area, the partition is located above the conductive plate; in the neutral wire connection area, the base is also provided with a limiting block, which is located above the edge of the conductive plate.
[0010] As a further improvement of this utility model, the junction box also includes a safety cover plate, which is rotatably connected to the base, and each of the wiring partitions is covered with a safety cover plate.
[0011] As a further improvement of this utility model, the base is provided with three live wire connection areas and one neutral wire connection area.
[0012] As a further improvement of this utility model, the output terminals on the conductive plate are arranged in a staggered manner within the neutral wire connection area.
[0013] The advantages of this invention are: it integrates multiple separate copper busbar structures into a modular junction box, simplifying assembly and facilitating installation. All terminals utilize through-hole fastener connections, ensuring safety and reliability. The separate live wire and neutral wire wiring areas allow for flexible combinations to meet the input requirements of both three-phase four-wire and single-phase systems. Attached Figure Description
[0014] Figure 1 This is an overall structural diagram of the junction box of this utility model with the safety cover in the closed state;
[0015] Figure 2 This is an overall structural diagram of the junction box of this utility model with the safety cover flipped up.
[0016] Figure 3 This is a structural diagram of the junction box without a safety cover in this utility model;
[0017] Figure 4 This is a structural diagram of the base in this utility model;
[0018] Figure 5 This is a structural diagram of the connection between the conductive plate, conductive sheet, and fasteners in this utility model. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0020] like Figures 1 to 5 As shown, a junction box of this utility model includes a base 1, a conductive plate 2, and fasteners 3. The base 1 is provided with multiple wiring sections, including a live wire wiring section 5 and a neutral wire wiring section 6. Each section is connected to a conductive plate 2. Each conductive plate 2 is provided with an input terminal 21 and at least one output terminal 22. The input wire is connected to the input terminal 21 through the fasteners 3, and the output wire is connected to the output terminal 22 through the fasteners 3. The base 1 is provided with a partition 11, which is located between the input terminal 21 and the output terminal 22, or between two adjacent output terminals 22.
[0021] This junction box can meet product requirements by providing one input and multiple outputs. Multiple conductive plates 2 are assembled onto the base to form a modular design. Only one junction box is needed to connect multiple wires, eliminating the need for separate copper busbars. The overall assembly is simple and easy to install. The layout is compact; one input port 21 on a single conductive plate 2 corresponds to multiple output ports 22, satisfying the requirement of one-to-many switching. Fasteners 3 are preferably screws, and the conductive plates 2 can be copper busbars. The input port 21, output port 22, and conductive plates 3 are all connected using screw holes, ensuring a secure and reliable connection. The base 1 has a live wire connection area 5 and a neutral wire connection area 6, which can be freely combined to meet the input requirements of three-phase four-wire and single-phase. Each port is separated by a partition 11, which staggers the wiring of each port and avoids short circuits caused by contact between ports.
[0022] The adjacent wiring sections on base 1 are staggered in a stepped structure. Specifically, base 1 is divided into two wiring directions, each containing at least one wiring section, and adjacent wiring sections in the same wiring direction are staggered in a stepped structure. The junction box layout adopts a two-layer stepped structure, with wiring exiting in two directions, effectively reducing product size and also staggering wiring paths to avoid mutual intersection.
[0023] A partition 11 is installed within the live wire connection area 5 of the base 1. Because the risk of accidental short circuits at the live wire connection is relatively high, the partition 11 separates the input port 21 and the multiple output ports 22 in the live wire connection area 5, ensuring adequate safety isolation between the connections. After the screws are tightened onto the conductive plate 2 in the live wire connection area, the screws are confined between the two partitions 11, which helps to fix the conductive plate 2 and prevent it from sliding.
[0024] Within the neutral wire connection area 6, the output terminals 22 on the conductive plate 2 are arranged in a staggered manner. Since the risk of accidental neutral wire contact is low, and there are many terminals on the conductive plate 2 in the neutral wire connection area 6, multiple wirings can be staggered in a staggered manner to achieve isolation between wirings.
[0025] Each wiring section of the base 1 has a support block 12, on which the conductive plate 2 is placed. The support block 12 defines the installation position of the conductive plate 2 on the base 1. During assembly, simply insert the conductive plate 2 into the support block 12 and push it into place. The support block 12 supports the conductive plate 2. After the screws in the neutral wire wiring section are tightened, the screws are confined between the support blocks 12, which can fix the conductive plate 2 and prevent it from sliding.
[0026] The partition 11 is located above the conductive plate 2; within the neutral wire connection area 6, the base 1 is also provided with a limiting block 13, which is located above the edge of the conductive plate 2. The positions of the partition 11 and the limiting block 13 restrict the upward movement space of the conductive plate 2 after assembly, thereby firmly securing the conductive plate 2 between the support block 12 and the partition 11, or between the support block 12 and the limiting plate, to prevent loosening.
[0027] The junction box also includes a safety cover 4, which is rotatably connected to the base 1. Each wiring section is covered with a safety cover 4. During wiring operations, the safety cover 4 can be flipped up to provide sufficient space for wiring. After the operation is completed, the safety cover 4 can be closed to block the connection holes and prevent accidental contact. Each conductive plate 2 also has an individual safety cover to ensure electrical safety.
[0028] The base 1 has three live wire connection areas 5 and one neutral wire connection area 6. The layout of three live wire connection areas 5 and one neutral wire connection area 6 allows the incoming line to be connected to a three-phase four-wire system, or only one or two of the live wire connection areas 5 can be connected. When used in conjunction with the neutral wire connection area 6, it can meet the single-phase and two-phase requirements. In addition, each conductive plate 2 has multiple outgoing wire connection screws to meet the requirements of multiple outgoing lines.
[0029] This junction box can accommodate up to three-phase four-wire input, meeting the product requirements of one input and multiple outputs. It significantly improves product assembly efficiency. Different electrodes are isolated from each other, staggered vertically, and each is equipped with a safety cover 4 to ensure electrical safety. The base 1 and conductive plate 2 of the junction box are injection molded and modularly assembled, improving production efficiency.
[0030] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.
Claims
1. A junction box, characterized in that, The device includes a base, a conductive plate, and fasteners. The base has multiple wiring sections, including a live wire wiring section and a neutral wire wiring section. Each section is connected to a conductive plate, and each conductive plate has an input terminal and at least one output terminal. The input wire is connected to the conductive plate of the input terminal through the fasteners, and the output wire is connected to the conductive plate of the output terminal through the fasteners. The base has a partition, which is located between the input terminal and the output terminal, or between two adjacent output terminals.
2. The junction box according to claim 1, characterized in that, The adjacent wiring sections on the base are staggered in a stepped structure.
3. The junction box according to claim 2, characterized in that, The base is divided into two wiring directions, each wiring direction contains at least one wiring section, and adjacent wiring sections in the same wiring direction are staggered in a stepped structure.
4. The junction box according to claim 1, characterized in that, The partition is located within the live wire connection area of the base.
5. The junction box according to claim 1, characterized in that, The base has a support block in each wiring section, and the conductive plate is placed on the support block.
6. The junction box according to claim 5, characterized in that, In the live wire connection area, the partition is located above the conductive plate; in the neutral wire connection area, the base is also provided with a limiting block, which is located above the edge of the conductive plate.
7. The junction box according to claim 1, characterized in that, It also includes safety covers, which are rotatably connected to the base, and each of the wiring sections is covered with a safety cover.
8. The junction box according to claim 1, characterized in that, The base has three live wire connection areas and one neutral wire connection area.
9. The junction box according to claim 1, characterized in that, Within the neutral wire connection area, the output terminals on the conductive plate are arranged in a staggered manner.