Electrical equipment modular junction box capable of being quickly assembled and disassembled without tool

By designing a tool-free, quick-assembly modular junction box for electrical equipment, and utilizing quick-assembly and wiring components, the problems of cumbersome operation, instability, and poor sealing performance of traditional junction boxes are solved. This achieves efficient, stable, and sealed electrical connections, meets modular requirements, and improves the safety and reliability of electrical equipment.

CN223942395UActive Publication Date: 2026-02-24SHANGHAI MUERXI ELECTRIC ENG CO LTD
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Patent Information

Application Number
CN202520515966.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-02-24
Estimated Expiration
2035-03-24

AI Technical Summary

Technical Problem

Traditional junction boxes are cumbersome to install and disassemble, inefficient, lack modular expansion flexibility, have unstable connections that are prone to loosening, have insufficient sealing performance, are susceptible to external corrosion, and affect the reliability and safety of electrical connections.

Method used

A tool-free modular junction box for electrical equipment was designed, which uses quick-disassembly and wiring components, including arc-shaped clamping blocks, springs, connecting grooves, and sealing covers, to achieve tool-free installation and disassembly, ensuring a stable connection and seal. The modular interface facilitates expansion and combination.

Benefits of technology

It enables a quick and secure connection between the junction box and the electrical equipment body, prevents wires from becoming loose, improves installation efficiency and the reliability of electrical connections, enhances sealing performance, prevents dust and moisture intrusion, and ensures the safety and service life of electrical equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of junction boxes, in particular to an electrical equipment modularized junction box capable of being quickly assembled and disassembled without tools, which comprises an electrical equipment body, a plurality of junction boxes are arranged in the electrical equipment body, and a pair of quick assembly and disassembly assemblies is symmetrically arranged on the upper side and the lower side of each junction box. And a wiring assembly is arranged in each junction box. According to the utility model, tool-free rapid mounting and dismounting between the junction box and the electrical equipment body are realized through arrangement of the rapid dismounting assembly, the junction box can be automatically clamped with the clamping seat in the electrical equipment body during mounting through cooperative use of the arc-shaped clamping block I, the arc-shaped clamping block II and the spring, additional tool assistance is not needed, and the working efficiency is improved. The mounting efficiency is greatly improved; according to the utility model, through the arrangement of the wiring assembly, stable electrical connection between the wire and the copper sheet on the wire holder is ensured, and electrical faults caused by loosening or falling of the wire are effectively prevented.
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Description

Technical Field

[0001] This utility model relates to the field of junction box technology, and in particular to a tool-free, quick-assembly and disassembly modular junction box for electrical equipment. Background Technology

[0002] Electrical equipment is usually connected by wires, and junction boxes play a vital role as an essential auxiliary tool when wiring these wires.

[0003] However, the installation and removal of traditional junction boxes usually require tools, which is not only cumbersome but also inefficient. Secondly, traditional junction boxes have limited flexibility in expansion and combination, making it difficult to meet the growing modular requirements of modern electrical equipment. Furthermore, although some traditional junction boxes attempt to connect wires using tool-free methods, these methods are often not stable enough and are prone to loosening due to vibration or external forces, thus affecting the reliability of the electrical connection. In addition, the sealing performance of traditional junction boxes is often not ideal, making them susceptible to corrosion from external dust and moisture, which may not only affect the performance of the electrical connection but also pose a threat to electrical safety. Utility Model Content

[0004] The purpose of this utility model is to provide a tool-free, quick-assembly and disassembly modular junction box for electrical equipment, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: it includes an electrical equipment body, wherein several junction boxes are provided inside the electrical equipment body, and a pair of quick-release components are symmetrically arranged on the upper and lower sides of each junction box, and a wiring component is provided inside each junction box.

[0006] As a preferred embodiment of this utility model, a connector one is provided on one side of the top of the junction box, a box cover is movably provided on the connector one, a sealing strip is provided at the bottom of the box cover, a connector two is provided on the side of the box cover away from the connector one, a flip buckle is movably provided on the connector two, a fixing post is provided on one side of the junction box, the fixing post passes through the flip buckle, and a fixing cap is threaded to one end of the fixing post.

[0007] As a preferred embodiment of this utility model, the quick-assembly and disassembly assembly includes a mounting plate 1 disposed on one side of the junction box, a connector 3 disposed at the bottom of the mounting plate 1, an arc-shaped clamping block 1 movably disposed on one side of the connector 3, an arc-shaped clamping block 2 movably disposed on the side of the connector 3 away from the arc-shaped clamping block 1, a mounting plate 2 disposed on one side of both the arc-shaped clamping block 1 and the arc-shaped clamping block 2, a spring disposed on both mounting plates 2, and the ends of both springs away from the mounting plates 2 are connected to the mounting plate 1, and a retainer is disposed in the electrical equipment body at a position corresponding to the mounting plate 1.

[0008] As a preferred embodiment of this utility model, a connecting block is provided on one side of the junction box, and a connecting groove is provided on the side of the junction box away from the connecting block.

[0009] In a preferred embodiment of this utility model, the wiring assembly includes several pairs of inlets disposed on both sides of the junction box, each inlet being threadedly connected to a sealing cap. The junction box contains a mounting plate three, on which several screws are spirally disposed. Each screw has a handle at its top and a pressure plate at its bottom via a support base. Each pressure plate has an insulating pad at its bottom.

[0010] As a preferred embodiment of this utility model, a pair of guide posts and guide sleeves are symmetrically arranged at the bottom of the mounting plates on both sides of each screw, and a pair of lifting guide posts are symmetrically arranged on both sides of the top of each pressure plate. The lifting guide posts are slidably arranged in the guide post and guide sleeves. A terminal block is provided on the bottom surface of the junction box corresponding to the pressure plate, and a copper sheet is provided on each terminal block.

[0011] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0012] This invention enables tool-free, rapid installation and disassembly of the junction box and the electrical equipment body by incorporating quick-release components. The combined use of arc-shaped locking blocks one and two with a spring allows the junction box to automatically engage with the mounting bracket inside the electrical equipment body during installation, eliminating the need for additional tools and significantly improving installation efficiency. Furthermore, the spring's restoring force ensures that the arc-shaped locking blocks one and two automatically reset after being fully engaged with the mounting bracket's protrusion, forming a tight fixation and guaranteeing the junction box's stability and safety. In addition, the connecting groove and connecting block work together to form a modular connection interface, facilitating the expansion and combination of the junction box.

[0013] This utility model, through the configuration of wiring components, including mounting plate three, handle, screw, pressure plate, and insulating pad, ensures a stable electrical connection between the wire and the copper plate on the terminal block, effectively preventing electrical faults caused by loose or detached wires. Secondly, the combination of guide post, guide sleeve, and lifting guide post provides stable guidance for the lifting of the pressure plate, allowing users to easily and accurately adjust wire connections, avoiding wiring defects caused by pressure plate misalignment. Furthermore, the sealing cover effectively prevents external factors such as dust and moisture from affecting the inside of the junction box when no wire is needed at the inlet, improving the reliability and service life of the electrical connection.

[0014] This utility model, by setting up a junction box, facilitates the user's opening of the junction box for wiring operations through the combination of connector one and box cover. Secondly, the combination of connector two, flip buckle, fixing post and fixing cover facilitates the locking of the box cover and junction box, preventing accidental opening during use. In addition, the sealing strip can effectively prevent external dust and moisture from entering through the gap between the box cover and the junction box, ensuring the stability and safety of the junction box during use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the junction box structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the quick-assembly and disassembly component structure of this utility model;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 This is a schematic diagram of the wiring assembly structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the pressure plate structure in the wiring assembly of this utility model.

[0021] Reference numerals: 1. Electrical equipment body; 2. Junction box; 21. Connector 1; 22. Box cover; 23. Sealing strip; 24. Connector 2; 25. Flip buckle; 26. Fixing post; 27. Fixing cover; 3. Quick-release assembly; 31. Mounting plate 1; 32. Connector 3; 33. Arc-shaped clamping block 1; 34. Arc-shaped clamping block 2; 35. Mounting plate 2; 36. Spring; 37. Card seat; 38. Connecting block; 39. Connecting groove; 4. Wiring assembly; 41. Inlet; 42. Sealing cover; 43. Mounting plate 3; 44. Screw; 45. Handle; 46. Pressure plate; 47. Guide post and guide sleeve; 48. Lifting guide post; 49. Insulating pad; 410. Terminal block; 411. Copper sheet. Detailed Implementation

[0022] 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 specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0023] like Figures 1-6 As shown, the present invention proposes a tool-free, quick-assembly and disassembly modular junction box for electrical equipment, which includes an electrical equipment body 1, a plurality of junction boxes 2 are provided inside the electrical equipment body 1, a pair of quick-assembly and disassembly components 3 are symmetrically arranged on the upper and lower sides of each junction box 2, and a wiring component 4 is provided inside each junction box 2.

[0024] A connector 21 is provided on one side of the top of the junction box 2. Connector 21 provides a mounting base for the cover 22 and allows the cover 22 to rotate a certain angle around connector 21. The cover 22 is movably mounted on connector 21. A sealing strip 23 is provided at the bottom of the cover 22. The cover 22 protects the inside of the junction box 2 from external pollution and physical damage. The sealing strip 23 enhances the sealing performance. A connector 24 is provided on the side of the cover 22 away from connector 21. Connector 24 provides a mounting base for the flip 25 and allows the flip 25 to rotate a certain angle around connector 24. The flip 25 is movably mounted on connector 24. A fixing post 26 is provided on one side of the junction box 2. The fixing post 26 passes through the flip 25. A fixing cover 27 is threaded to one end of the fixing post 26. The fixing post 26 passes through the flip 25 and is threaded to the fixing cover 27 to achieve a firm lock on the cover 22 and prevent the cover 22 from being opened accidentally.

[0025] The quick-release assembly 3 includes a mounting plate 31 on one side of the junction box 2. The mounting plate 31 provides a mounting base for the connector 32. The connector 32 is located at the bottom of the mounting plate 31. The connector 32 provides a movable fulcrum for the arc-shaped clamping block 33 and the arc-shaped clamping block 34. The arc-shaped clamping block 33 is movably mounted on one side of the connector 32, and the arc-shaped clamping block 34 is movably mounted on the side of the connector 32 away from the arc-shaped clamping block 33. The cooperation between the arc-shaped clamping blocks 33 and 34 and the mounting base 37 enables the junction box 2 to automatically engage with the electrical equipment body 1. Both the arc-shaped clamping blocks 33 and 34 are mounted on one side. Mounting plate 2 35 is provided, which provides a mounting base for spring 36. Spring 36 is provided on both mounting plates 2 35. The ends of the two springs 36 away from mounting plate 2 35 are connected to mounting plate 1 31. A retainer 37 is provided in the electrical equipment body 1 at the position corresponding to mounting plate 1 31. When arc-shaped retaining block 1 33 and arc-shaped retaining block 2 34 just contact the protruding part of retainer 37, they open to both sides and squeeze spring 36. After the protruding part of retainer 37 is fully engaged, the external force disappears, and spring 36 provides a restoring force for arc-shaped retaining block 1 33 and arc-shaped retaining block 2 34, thereby realizing a firm installation between junction box 2 and electrical equipment body 1.

[0026] A connecting block 38 is provided on one side of the junction box 2, and a connecting groove 39 is provided on the side of the junction box 2 away from the connecting block 38. The connecting groove 39 cooperates with the connecting block 38 to form a modular connection interface, which facilitates the expansion and combination of the junction box 2.

[0027] Wiring assembly 4 includes several pairs of wire inlets 41 located on both sides of junction box 2. Each wire inlet 41 is threadedly connected to a sealing cap 42. The wire inlets 41 allow wires to enter junction box 2. The sealing cap 42 prevents dust and moisture from entering when no wires are needed. Junction box 2 contains mounting plate 3 43, which provides a mounting base for other components in wiring assembly 4. Several screws 44 are spirally mounted on mounting plate 3 43. The screws 44 are used to adjust the height of pressure plate 46, thereby clamping the wires. Each screw 44 has a handle 45 at its top. The hand 45 allows the user to manually rotate the screw 44, raising and lowering it relative to the mounting plate 43, thereby adjusting the position of the pressure plate 46. Each screw 44 has a pressure plate 46 mounted on its bottom via a support base, and each pressure plate 46 has an insulating pad 49 mounted on its bottom. The screw 44 is connected to the pressure plate 46 via the support base. When the screw 44 rotates, the pressure plate 46 does not rotate, ensuring that the pressure plate 46 can be raised and lowered stably. The pressure plate 46 is used to press on the wire, ensuring that the wire is in close contact with the copper sheet 411 on the terminal block 410. The insulating pad 49 increases the friction between the wire and the copper sheet 411, preventing the wire from accidentally slipping off.

[0028] A pair of guide posts and guide sleeves 47 are symmetrically arranged at the bottom of the mounting plates 43 on both sides of each screw 44. A pair of lifting guide posts 48 are symmetrically arranged on both sides of the top of each pressure plate 46. The lifting guide posts 48 are slidably arranged in the guide post and guide sleeves 47. The cooperation between the lifting guide posts 48 and the guide post and guide sleeves 47 ensures that the pressure plate 46 does not shift during the lifting process. A terminal block 410 is provided on the bottom surface of the junction box 2 at the position corresponding to the pressure plate 46. The terminal block 410 provides an installation base for the copper sheet 411. A copper sheet 411 is provided on each terminal block 410. The copper sheet 411 provides an electrical connection point to ensure a reliable connection between wires.

[0029] In use, the user can first select the appropriate number of junction boxes 2 according to the needs, and quickly assemble them through the connecting blocks 38 and connecting slots 39 on both sides of the junction box 2. Then, the assembled junction box 2 is installed into the electrical equipment body 1. During installation, the user can first align the mounting plates 31 on both sides of each junction box 2 with the card holders 37 inside the electrical equipment body 1. When the arc-shaped clamping blocks 33 and 34 come into contact with the protruding parts of the card holder 37, they will open first and squeeze the spring 36. After the card holder 37 is fully inserted between the arc-shaped clamping blocks 33 and 34, the external force disappears, and the spring 36 pushes the arc-shaped clamping blocks 33 and 34 to reset, thereby achieving a firm installation between the assembled junction box 2 and the electrical equipment body 1.

[0030] Next, the user can loosen and remove the fixing cover 27, pull up the flip buckle 25 by hand, and rotate the box cover 22 around the connector 21 to open the box cover 22. Then, the user can loosen and remove the sealing cover 42 on each pair of inlets 41 according to the actual situation, align the threaded connectors of the two cables to be connected with the inlets 41 on both sides and tighten them, and introduce the wires to be connected in the cable into the junction box 2 through the inlets 41. The user can place the connectors of the wires to be connected on the copper plates 411 of the terminal block 410, and then hold and turn the handle 45 by hand. The screw 44 is connected to the pressure plate 46 through the support seat. When the handle 45 and the screw 44 are turned, the pressure plate 46 does not turn and lowers, pressing tightly on the wires to be connected. The insulating pad 49 can increase the friction between the wires and the copper plates 411 to prevent accidental slippage and ensure the stability of the wire connection. The cooperation of the guide post sleeve 47 and the lifting guide post 48 ensures the stability of the pressure plate 46 when it is raised and lowered.

[0031] After completing the wiring, the user can close the cover 22, and after passing the snap 25 through the fixing post 26, align the fixing cover 27 with the fixing post 26 and tighten it. The sealing strip 23 at the bottom of the cover 22 can effectively prevent dust and moisture from entering the inside of the junction box 2.

[0032] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A tool-free, quick-assembly and disassembly modular junction box for electrical equipment, comprising: The electrical equipment body (1) is characterized in that: a number of junction boxes (2) are provided inside the electrical equipment body (1), and a pair of quick-release components (3) are symmetrically arranged on the upper and lower sides of each junction box (2), and a wiring component (4) is provided inside each junction box (2).

2. The modular junction box for tool-free quick assembly and disassembly of electrical equipment according to claim 1, characterized in that: The junction box (2) is provided with a connector one (21) on one side of the top. A box cover (22) is movably provided on the connector one (21). A sealing strip (23) is provided at the bottom of the box cover (22). A connector two (24) is provided on the side of the box cover (22) away from the connector one (21). A flip buckle (25) is movably provided on the connector two (24). A fixing post (26) is provided on one side of the junction box (2). The fixing post (26) passes through the flip buckle (25). A fixing cover (27) is threaded to one end of the fixing post (26).

3. The modular junction box for tool-free quick assembly and disassembly of electrical equipment according to claim 2, characterized in that: The quick-release assembly (3) includes a mounting plate (31) on one side of the junction box (2). A connector (32) is provided at the bottom of the mounting plate (31). An arc-shaped clamping block (33) is movably provided on one side of the connector (32). An arc-shaped clamping block (34) is movably provided on the side of the connector (32) away from the arc-shaped clamping block (33). A mounting plate (35) is provided on one side of both the arc-shaped clamping block (33) and the arc-shaped clamping block (34). A spring (36) is provided on both mounting plates (35). The ends of the two springs (36) away from the mounting plates (35) are connected to the mounting plate (31). A card holder (37) is provided in the electrical equipment body (1) at the position corresponding to the mounting plate (31).

4. A tool-free, quick-assembly and disassembly modular junction box for electrical equipment according to claim 3, characterized in that: A connecting block (38) is provided on one side of the junction box (2), and a connecting groove (39) is provided on the side of the junction box (2) away from the connecting block (38).

5. A tool-free, quick-assembly and disassembly modular junction box for electrical equipment according to claim 4, characterized in that: The wiring assembly (4) includes several pairs of inlets (41) arranged on both sides of the junction box (2). Each inlet (41) is threaded with a sealing cap (42). The junction box (2) is provided with a mounting plate three (43). Several screws (44) are spirally arranged on the mounting plate three (43). Each screw (44) is provided with a handle (45) at the top. Each screw (44) is provided with a pressure plate (46) at the bottom through a support seat. Each pressure plate (46) is provided with an insulating pad (49) at the bottom.

6. A tool-free, quick-assembly and disassembly modular junction box for electrical equipment according to claim 5, characterized in that: A pair of guide posts and guide sleeves (47) are symmetrically arranged at the bottom of the mounting plate three (43) on both sides of each screw (44), and a pair of lifting guide posts (48) are symmetrically arranged on both sides of the top of each pressure plate (46). The lifting guide posts (48) are slidably arranged in the guide post and guide sleeve (47). A terminal block (410) is provided on the bottom surface of the junction box (2) at the position corresponding to the pressure plate (46), and a copper sheet (411) is provided on each terminal block (410).