A junction box

Abstract

This utility model discloses a junction box, relating to the field of industrial connector technology, comprising: a housing, multiple electrical connectors, and lead wires; a conductive plate is fixed in the inner cavity of the housing; each electrical connector includes an insulating cylinder and a conductive post, the outer wall of the insulating cylinder is fixed to the upper surface of the housing, and one end abuts against the upper surface of the conductive plate, the conductive post is located inside the insulating cylinder and is electrically connected to the conductive plate; one end of the lead wire is located in the inner cavity of the housing and is electrically connected to the conductive plate, and the other end is located on the outer side of the housing, allowing for electrical connection with other electrical appliances; ensuring improved protection capabilities of the junction box in complex environments, enhanced current carrying capacity, improved installation and usage efficiency, optimized environmental adaptability, extended service life, and improved user experience.

Description

Technical Field

[0001] This utility model relates to the field of industrial connector technology, and more specifically to a junction box. Background Technology

[0002] Junction boxes, as electrical connection devices, are widely used in consumer electronics, motors and electronic products, machinery, engineering control equipment, and environmental protection and green energy equipment. Their main function is to connect input / output signals, achieving an IP67 protection rating to meet basic dust and water resistance requirements. However, existing junction boxes present numerous problems in complex and special environments. For example, in high humidity, high temperature, or frequent vibration environments, loose wiring or material aging may cause equipment to malfunction, affecting system reliability. Furthermore, existing junction box designs lack modularity, resulting in low resource utilization efficiency, complex installation, large size, and inconvenient maintenance. With the development of new energy equipment, higher performance requirements are placed on junction boxes, including higher current carrying capacity, more convenient installation methods, and stronger environmental adaptability, but current technologies struggle to meet these demands. Therefore, designing efficient, reliable, and adaptable junction boxes has become a key goal for industry development.

[0003] Therefore, in response to the existing problems, how to provide a junction box that can improve the protection capability of the junction box in complex environments, enhance the current carrying capacity, improve the installation and use efficiency, optimize environmental adaptability and extend service life, and improve the user experience are problems that urgently need to be solved by those skilled in the art. Utility Model Content

[0004] Therefore, this utility model provides a junction box that ensures improved protection capabilities in complex environments, enhanced current carrying capacity, improved installation and usage efficiency, optimized environmental adaptability, extended service life, and improved user experience.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A junction box includes: a housing, a plurality of electrical connectors, and lead wires;

[0007] A conductive plate is fixed inside the housing; each electrical connector includes an insulating cylinder and a conductive post. The outer wall of the insulating cylinder is fixed to the upper surface of the housing, and one end abuts against the upper surface of the conductive plate. The conductive post is located inside the insulating cylinder and is electrically connected to the conductive plate. One end of the lead wire is located inside the housing and is electrically connected to the conductive plate, while the other end is located outside the housing and can be electrically connected to other electrical appliances.

[0008] Through the above technical solution, this utility model provides a junction box. By setting up a housing, multiple electrical connectors, and lead wires, the electrical signals of the input and output terminals of the junction box can be connected, enabling the junction box to perform its electrical connection function normally and meet the usage requirements in general environments. At the same time, the multiple electrical connectors of the junction box also give it a certain modularity, making it convenient to connect the junction box to multiple devices at the same time. Compared with the prior art, it is more convenient for daily maintenance and repair, reducing maintenance costs and time costs.

[0009] Preferably, the junction box further includes multiple light guides, each fixed to the inner wall of the housing and electrically connected at one end to the conductive plate. Each light guide corresponds to a conductive plate in position. The light guides visually display the operating status of each electrical connector in the junction box, allowing users to quickly understand the equipment's operation, promptly identify faults, and improve troubleshooting efficiency. Furthermore, during installation and maintenance, the light guides provide location guidance for operators, helping them quickly locate the corresponding electrical connectors and improving operational accuracy and convenience.

[0010] Preferably, in the above-mentioned junction box, the conductive post includes a connecting core and a conductive rod. One end of the connecting core is welded to the conductive plate, and the connecting core has a through hole along its axial direction. The conductive rod is electrically connected to the conductive plate and fixed within the through hole. The connecting core increases the connection strength between the conductive post and the conductive plate, making the electrical connection more stable and reliable, and reducing signal transmission interruptions or malfunctions caused by loose connections. The conductive rod is fixed within the through hole of the connecting core. This structural design optimizes the current transmission path, reduces resistance, and improves the current carrying capacity of the junction box, meeting the needs of higher power devices. Stable electrical connection and good current transmission performance help reduce the loss of electrical components, thereby extending the service life of the junction box and reducing equipment replacement costs.

[0011] Preferably, the junction box further includes a waterproof cover. An installation gap is provided between the insulating cylinder and the connecting core. The waterproof cover is located within the mounting cavity and is threaded onto the inner wall of the insulating cylinder. The waterproof cover provides additional physical protection for components such as the insulating cylinder and the connecting core. The threaded connection design of the waterproof cover tightly fits the inner wall of the insulating cylinder, effectively preventing moisture from entering the installation gap, enhancing the junction box's waterproof capability, and enabling stable operation in humid environments. It reduces the risk of collision and damage to internal components from external objects, improving the durability of the junction box. Furthermore, the waterproof cover design ensures that even in complex and special environments, such as high humidity and high dust conditions, the junction box can better adapt to the environment, maintain good working condition, and expand its application range.

[0012] Preferably, the junction box further includes a sealing gasket located within the installation gap. The sealing gasket is fitted onto the outer wall of the connecting core and abuts against the insulating cylinder. The sealing gasket, fitted onto the outer wall of the connecting core and abutting against the insulating cylinder, further enhances the sealing of the installation gap, effectively preventing the intrusion of dust and moisture, improving the dustproof and waterproof rating of the junction box, and enabling reliable operation even in harsh environments. The sealing gasket has a certain degree of elasticity, which can buffer and dampen shocks to some extent, reducing the impact of equipment vibration or external impacts on electrical connections, and improving the stability and reliability of the junction box. Good sealing performance helps protect internal components from external environmental corrosion, reducing component aging and damage, thereby extending the service life of the junction box and reducing the frequency of equipment maintenance and replacement.

[0013] Preferably, the junction box further includes a sealing layer, which is fixed to the inner cavity of the housing and abuts against the lower surface of the conductive plate. By providing the sealing layer, the overall sealing of the housing is achieved, which helps protect internal components from external environmental corrosion, reduces component aging and damage, thereby extending the service life of the junction box and reducing the frequency of equipment maintenance and replacement.

[0014] Preferably, the junction box further includes a lead wire mounting assembly, which includes a mounting sleeve and a cap. The mounting sleeve is fitted onto the lead wire, and one end of the mounting sleeve is snapped onto the housing. The cap is fitted onto the outer wall of the other end of the mounting sleeve, and the cap has a through hole along its axial direction to facilitate the lead wire's passage. The mounting sleeve fitted onto the lead wire and snapped onto the housing, with the cap fitted onto the outer wall of the other end of the mounting sleeve, provides a more secure and reliable fixation of the lead wire, preventing it from loosening or falling off due to external forces during use, thus ensuring the stability of signal transmission. The structural design of the lead wire mounting assembly makes the installation and maintenance of the lead wire more convenient and quick. During installation, simply pass the lead wire through the mounting sleeve and cap, and then perform a simple snap-fit ​​and fixation. During maintenance, the lead wire can also be quickly disassembled and replaced, improving work efficiency. The tight fit between the lead wire mounting assembly and the housing further enhances the overall sealing performance of the junction box, effectively preventing external substances from entering the junction box from the connection between the lead wire and the housing, thus improving the protection capability of the junction box.

[0015] Preferably, in the above-mentioned junction box, the lead-out cable mounting assembly further includes a sealing ring sleeve. The sealing ring sleeve is fitted onto the outer wall of the lead-out cable, and its circumference abuts against the inner wall of the mounting cylinder. This double-sealing structure, where the sealing ring sleeve is fitted onto the outer wall of the lead-out cable and its circumference abuts against the inner wall of the mounting cylinder, further improves the sealing performance between the lead-out cable and the mounting cylinder, effectively preventing the intrusion of external substances and ensuring the stability of the internal environment of the junction box. The design of the sealing ring sleeve can better accommodate lead-out cables of different sizes and specifications, improving the versatility and flexibility of the lead-out cable mounting assembly, and reducing production costs and inventory pressure. Good sealing performance helps improve the reliability of the junction box in harsh environments, reduces the probability of failure caused by external factors, and improves the overall performance and stability of the equipment.

[0016] As can be seen from the above technical solution, compared with the prior art, the present utility model discloses a junction box, which has the following beneficial effects:

[0017] 1. This utility model, through the arrangement of the housing, multiple electrical connectors, and lead wires, enables the connection of electrical signals between the input and output terminals of the junction box, allowing the junction box to perform its electrical connection function normally and meet the usage requirements in general environments. At the same time, the multiple electrical connectors of the junction box also give it a certain modularity, making it convenient to connect the junction box to multiple devices at the same time. Compared with the prior art, it is easier to carry out daily maintenance and repair, reducing maintenance costs and time costs.

[0018] 2. This utility model effectively prevents the intrusion of dust and moisture through sealing gaskets and sealing layers, improving the dustproof and waterproof rating of the junction box and enabling it to operate reliably even in harsh environments. Good sealing performance helps protect internal components from external environmental corrosion, reducing component aging and damage, thereby extending the service life of the junction box and reducing the frequency of equipment maintenance and replacement. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 The attached figure is an exploded view of the junction box provided by this utility model;

[0021] Figure 2 The attached figure is a structural cross-sectional view of the junction box provided by this utility model;

[0022] Figure 3 The attached figure is a structural schematic diagram of the junction box provided by this utility model.

[0023] in:

[0024] 1-Housing; 2-Conductive plate; 3-Insulating cylinder; 4-Conductive post; 41-Connecting core; 42-Conductive rod; 5-Lead wire; 6-Light guide post; 7-Waterproof cover; 8-Sealing gasket; 9-Lead wire mounting assembly; 91-Mounting cylinder; 92-Fastening cap; 93-Sealing ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example:

[0027] See appendix Figure 1-3 This utility model discloses a junction box, including: a housing 1, multiple electrical connectors and lead wires 5; a conductive plate 2 is fixed in the inner cavity of the housing 1; each electrical connector includes an insulating cylinder 3 and a conductive post 4, the outer wall of the insulating cylinder 3 is fixed to the upper surface of the housing 1 and one end abuts against the upper surface of the conductive plate 2, the conductive post 4 is located inside the insulating cylinder 3 and is electrically connected to the conductive plate 2; one end of the lead wire 5 is located in the inner cavity of the housing 1 and is electrically connected to the conductive plate 2, and the other end extends to the outside of the housing 1, and can be electrically connected to other electrical appliances.

[0028] Specifically, conductive plate 2 is a PCB board, and the PCB board is a multilayer board that can carry high current.

[0029] In some specific embodiments, a light guide post 6 is also included. There are multiple light guide posts 6, each of which is fixed to the inner side wall of the housing 1 and one end is electrically connected to the conductive plate 2. The positions of each light guide post 6 and the conductive post 4 are corresponding.

[0030] In some other embodiments, the conductive post 4 includes a connecting core 41 and a conductive rod 42. One end of the connecting core 41 is welded to the conductive plate 2, and the connecting core 41 has a through hole along its axial direction. The conductive rod 42 is electrically connected to the conductive plate 2 and is fixed in the through hole.

[0031] In a specific embodiment, a waterproof cover 7 is also included. An installation gap is provided between the insulating cylinder 3 and the connecting core 41. The waterproof cover 7 is located in the installation cavity and is threadedly connected to the inner wall of the insulating cylinder 3.

[0032] In one specific example, a sealing gasket 8 is also included. The sealing gasket 8 is located within the installation gap, is fitted onto the outer wall of the connecting core 41, and abuts against the insulating cylinder 42.

[0033] In some examples, a sealing layer is also included, which is fixed to the inner cavity of the housing 1 and abuts against the lower surface of the conductive plate 2.

[0034] In a specific embodiment, adhesive is poured into the housing 1 to form a sealing layer to seal the components inside the housing 1.

[0035] In some specific examples, a lead wire mounting assembly 9 is also included. The lead wire mounting assembly 9 includes a mounting sleeve 91 and a fastening cap 92. The mounting sleeve 91 is sleeved on the lead wire 5, and one end of the mounting sleeve 91 is snapped onto the housing 1. The fastening cap 92 is sleeved on the outer wall of the other end of the mounting sleeve 91, and the fastening cap 92 has a through hole along its axial direction to facilitate the lead wire 5 to pass through.

[0036] In a specific embodiment, the lead wire mounting assembly 9 further includes a sealing ring 93, which is sleeved on the outer wall of the lead wire 5, and the periphery of the sealing ring 93 abuts against the inner wall of the mounting cylinder 91.

[0037] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A junction box, characterized in that, include: A housing (1) has a conductive plate (2) fixed inside its cavity. Multiple electrical connectors, each of which includes an insulating cylinder (3) and a conductive post (4), the outer wall of the insulating cylinder (3) is fixed to the upper surface of the housing (1) and one end abuts against the upper surface of the conductive plate (2), the conductive post (4) is located inside the insulating cylinder (3) and is electrically connected to the conductive plate (2); Lead wire (5), one end of which is located in the inner cavity of the housing (1) and electrically connected to the conductive plate (2), and the other end extends to the outside of the housing (1) and can be electrically connected to other electrical appliances.

2. A junction box according to claim 1, characterized in that, It also includes light guide pillars (6), and there are multiple light guide pillars (6). Each light guide pillar (6) is fixed to the inner side wall of the housing (1), and one end is electrically connected to the conductive plate (2). The position of each light guide pillar (6) corresponds to that of the conductive pillar (4).

3. A junction box according to claim 1, characterized in that, The conductive post (4) includes a connecting core (41) and a conductive rod (42). One end of the connecting core (41) is welded to the conductive plate (2), and the connecting core (41) has a through hole along its axial direction. The conductive rod (42) is electrically connected to the conductive plate (2) and fixed in the through hole.

4. A junction box according to claim 3, characterized in that, It also includes a waterproof cover (7), and an installation gap is provided between the insulating cylinder (3) and the connecting core (41). The waterproof cover (7) is located in the installation gap and is threadedly connected to the inner wall of the insulating cylinder (3).

5. A junction box according to claim 4, characterized in that, It also includes a sealing gasket (8), which is located within the installation gap. The sealing gasket (8) is fitted onto the outer wall of the connecting core (41) and abuts against the insulating cylinder (3).

6. A junction box according to claim 1, characterized in that, It also includes a sealing layer, which is fixed to the inner cavity of the housing (1) and abuts against the lower surface of the conductive plate (2).

7. A junction box according to claim 1, characterized in that, It also includes a lead wire mounting assembly (9), which includes a mounting cylinder (91) and a fastening cap (92). The mounting cylinder (91) is sleeved on the lead wire (5), and one end of the mounting cylinder (91) is snapped onto the housing (1). The fastening cap (92) is sleeved on the outer wall of the other end of the mounting cylinder (91), and the fastening cap (92) has a through hole along its axial direction to facilitate the lead wire (5) to pass through.

8. A junction box according to claim 7, characterized in that, The lead wire mounting assembly (9) also includes a sealing ring (93), which is sleeved on the outer wall of the lead wire (5), and the periphery of the sealing ring (93) abuts against the inner wall of the mounting cylinder (91).

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