terminal block

Abstract

The utility model discloses a terminal box, including the box body with the opening, the opening of box body is hinged with the apron to seal cover and close the box body, at least two terminal blocks are fixedly connected on the inner wall of box body, the terminal block is arranged in the bottom surface opposite with the opening of box body, and when wiring, the wire of different components enters the inner chamber of box body through different terminal blocks and is connected through the terminal block. The utility model discloses through connecting the wire of different components in the box body, and wire enters the inner chamber of box body through corresponding terminal block and completes the connection, makes the wire connection completely closed in the inside of box body, effectively avoided the erosion of outside dust and water vapor, also eliminated the security risk of personnel mistake touch exposed joint. In addition, the centralized connection mode in the closed space makes the wire trend more regular, when overhauling, need not to disassemble external circuit, only need to open the apron can directly view the connection state, thereby greatly improved the maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of electronic product protection technology, and in particular to a junction box. Background Technology

[0002] The current connection method for electrical components has a significant design flaw: after the two are directly connected via terminals, the entire connection area is completely exposed without any protective measures. This exposed design easily leads to multiple safety hazards: in daily use, dust and moisture will continuously corrode the terminal interface, causing the metal contacts to oxidize and rust, resulting in poor contact, and in severe cases, potentially causing a power outage. In particular, the failure of emergency equipment in sudden situations will directly threaten the safety of personnel evacuation.

[0003] Furthermore, exposed terminals may accidentally come into contact with metal objects or damp surfaces, potentially causing short circuits and sparks, especially in flammable and explosive environments, posing a risk of fire or explosion. Additionally, exposed wiring structures are often untidy and cause significant difficulties for maintenance. Utility Model Content

[0004] In view of the safety hazards and maintenance inconvenience caused by exposed terminals of electrical components in the prior art, this utility model proposes an effective solution.

[0005] To achieve the above objectives, this utility model provides a junction box, including a box body with an opening, a cover plate hinged to the opening of the box body to seal and cover the box body, at least two wiring pipes fixedly connected to the inner wall of the box body, and a terminal block for wire connection provided inside the box body. The terminal block is located on the bottom surface opposite to the opening of the box body. When wiring, the wires of different components enter the inner cavity of the box body through different wiring pipes and are connected through the terminal block.

[0006] As an improvement of this utility model, the box body is provided with a through hole, and the wiring tube includes an outer end, an inner end integrally formed with the outer end and having threads, and a fixing member. The diameter of the inner end is smaller than the diameter of the through hole so that the inner end passes through the through hole and enters the inner cavity of the box body. The diameter of the outer end is larger than the diameter of the through hole so that the outer end is set on the outer surface of the box. The diameter of the fastener is larger than the diameter of the through hole and is threaded to the inner end, thereby fixing the wiring tube to the box.

[0007] As an improvement of this utility model, a silicone ring is attached to the inner wall of the inner end opening, and the silicone ring forms a protective part on the inner wall of the inner end opening.

[0008] As an improvement of this utility model, the bottom surface of the box is provided with a fixing hole, and an external bolt is used to fix the box to the wall through the fixing hole.

[0009] As an improvement of this utility model, a connecting post is provided at one end of the box body, and a connecting hole corresponding to the connecting post is provided on the cover plate. The connecting hole and the connecting post can be flipped and connected.

[0010] As an improvement of this utility model, the other end of the box body is provided with a locking hole, and the cover plate is provided with a protrusion that matches the shape and size of the locking hole. The protrusion is inserted into the locking hole to realize the locking connection between the cover plate and the box body.

[0011] As an improvement of this utility model, the cover plate is provided with an inclined portion adjacent to the protrusion. The inclined portion is inclined in a direction away from the cover plate, so as to facilitate the movement of the protrusion to flip away from the box body.

[0012] As an improvement of this utility model, it also includes a metal corrugated tube, which forms a channel for the wires of the components to pass through. The number of the metal corrugated tubes is adapted to the number of the wiring tubes, and one end of any metal corrugated tube is fixedly connected to the wiring tube, while the other end is used to connect to the protection box of the fixed emergency power supply or the LED load.

[0013] The beneficial effects of this utility model are as follows: Compared with the prior art, the junction box provided by this utility model includes a box body with an opening. A cover plate is hinged to the opening of the box body to seal it. At least two wiring pipes are fixedly connected to the inner wall of the box body. A terminal block for wire connection is provided inside the box body. The terminal block is located on the bottom surface opposite the opening of the box body. During wiring, the wires of different components enter the inner cavity of the box body through different wiring pipes and are connected through the terminal block. This utility model connects the wires of different components inside the box body. The wires enter the inner cavity of the box body through the corresponding wiring pipes to complete the connection. This completely seals the wire connection points inside the box body, avoiding the corrosion of external dust and moisture, and eliminating the safety hazard of personnel accidentally touching exposed connectors. At the same time, the centralized connection method in the enclosed space makes the wire routing more orderly. During maintenance, there is no need to disassemble the external wiring. The connection status can be directly viewed simply by opening the cover plate, which greatly improves maintenance efficiency. Attached Figure Description

[0014] Figure 1 This is the first perspective view of the present invention; Figure 2 This is a second perspective view of the present invention; Figure 3 This is a schematic diagram of the cover plate of this utility model; Figure 4 This is a schematic diagram of the wiring conduit of this utility model; Figure 5 This is a schematic diagram showing the connection between the junction box of this utility model and the LED load and emergency power supply.

[0015] The symbols for the main components are explained below: 1. Housing; 11. Terminal block; 12. Fixing hole; 13. Connecting post; 14. Clip hole; 2. Cover plate; 21. Inclined part; 22. Connecting hole; 23. Protrusion; 3. Connecting pipe; 31. Outer end; 32. Inner end; 33. Fixing component; 4. Metal corrugated pipe; 5. Protective box. Detailed Implementation

[0016] To more clearly illustrate this utility model, the following description, in conjunction with the accompanying drawings, will provide a further picture.

[0017] In the following description, specific examples are given to provide a more in-depth understanding of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of them. It should be understood that the specific embodiments described are only used to explain the present invention and are not intended to limit the present invention.

[0018] It should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the said feature, integral, step, operation, element, or component, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, or combinations thereof.

[0019] Please see Figure 1-5 This utility model discloses a junction box, comprising a box body 1 with an opening, a cover plate 2 hinged to the opening of the box body 1 to seal the box body 1, at least two wiring conduits 3 fixedly connected to the inner wall of the box body 1, and a terminal block 11 for wire connection provided inside the box body 1. The terminal block 11 is located on the bottom surface opposite the opening of the box body 1. During wiring, the wires of different components enter the inner cavity of the box body 1 through different wiring conduits 3 and are connected through the terminal block. Connecting the wires of different components inside the box body 1, with the wires entering the inner cavity of the box body 1 through the corresponding wiring conduits 3 to complete the connection, ensures that the wire connection is completely sealed inside the box body 1, effectively avoiding the corrosion of external dust and moisture, and eliminating the safety hazard of personnel accidentally touching exposed joints. In addition, the centralized connection method in the enclosed space makes the wire routing more regular, and during maintenance, there is no need to disassemble the external wiring; the connection status can be directly viewed simply by opening the cover plate 2, thereby greatly improving maintenance efficiency.

[0020] In specific application scenarios, the junction box 3 is fixedly connected to one end of a series of corrugated metal tubes 4, the number of which is matched to the number of junction boxes. The corrugated metal tubes 4 form channels for the component wires to pass through. One end of one corrugated metal tube 4 is connected to a protective box 5 that holds the emergency power supply, while the remaining corrugated metal tubes 4 are fixedly connected to LED loads. This design allows the junction box to not only have basic wire connection functions but also incorporate emergency lighting functionality. When the main power is interrupted, the emergency power supply quickly supplies power to the LED loads through the connected corrugated metal tubes 4, ensuring necessary lighting in emergencies. The use of corrugated metal tubes 4 improves the overall waterproof and dustproof performance, further ensuring the safe operation of the components inside the junction box. The remaining corrugated metal tubes 4 are fixedly connected to the LED loads via the junction boxes 3. The silicone rings fitted to the inner walls of the inner openings of the junction boxes 3 prevent damage to the wires when they are pulled.

[0021] Specifically, the terminal block 11 makes the wire connections neater and more orderly, improving wiring efficiency and space utilization within the junction box. Furthermore, the terminal block 11 has excellent conductivity and stability, ensuring the reliability and safety of current transmission.

[0022] In this embodiment, the housing 1 has a through hole. The wiring conduit 3 includes an outer end 31, an inner end 32 integrally formed with the outer end 31 and having threads, and a fixing member 33. The diameter of the inner end 32 is smaller than the diameter of the through hole so that the inner end 32 passes through the through hole and enters the inner cavity of the housing 1. The diameter of the outer end 31 is larger than the diameter of the through hole so that the outer end 31 is located on the outer surface of the housing 1. The diameter of the fixing member 33 is larger than the diameter of the through hole and is threadedly connected to the inner end 32, thereby fixing the wiring conduit 3 to the housing 1. During assembly, after the inner end 32 passes through the through hole, it is only necessary to thread the fixing member 33 from the inside of the housing 1 to the inner end 32 and tighten it to complete the installation and fixing of the wiring conduit 3. When it is necessary to replace components or adjust wires, the wiring conduit 3 can be quickly disassembled simply by loosening the fixing member 33, which significantly simplifies the operation process and greatly improves the convenience of component replacement and wiring connection.

[0023] In this embodiment, a silicone ring is attached to the inner wall of the opening at the inner end 32, forming a protective part on the inner wall of the opening. Since the wire needs to pass through the inner end 32 of the junction box 3 to enter the box 1, and there may be minor burrs or sharp edges on the edge of the inner end 32 that contacts the wire, the silicone ring attached to the inner wall of the opening forms a protective part. This protective part can effectively prevent the wire from being cut by the inner wall of the opening at the inner end 32 during insertion, pulling, or long-term use, thereby ensuring the integrity of the wire insulation layer, reducing the risk of short circuits and leakage caused by wire damage, and further improving the safety protection performance of the junction box.

[0024] In this embodiment, the inner wall of the junction box 1 is provided with fixing holes 12, and external bolts are used to fix the junction box 1 to the wall through the fixing holes 12. This design effectively prevents the junction box from loosening or falling off due to vibration or external force. At the same time, the setting of fixing holes 12 also facilitates the construction personnel to perform precise positioning and installation, improving installation efficiency. In addition, the use of external bolts also facilitates the disassembly and maintenance of the junction box by the later maintenance personnel, further enhancing the practicality and convenience of the junction box.

[0025] In this embodiment, a connecting post 13 is provided at one end of the box body 1, and a connecting hole 22 corresponding to the connecting post 13 is provided on the cover plate 2. The connecting hole 22 and the connecting post 13 can be flipped together. This flip-connection method allows the cover plate 2 to be flexibly opened and closed on the box body 1, facilitating quick access or maintenance of internal wiring by construction personnel. The matching design of the connecting post 13 and the connecting hole 22 ensures a stable connection between the cover plate 2 and the box body 1 when closed, effectively preventing the cover plate 2 from loosening or falling off due to vibration or external force, thereby further improving the overall stability and safety of the junction box. At the same time, this flip-connection design also allows construction personnel to easily open the cover plate 2 for wiring access or maintenance without disassembling the entire junction box, greatly improving construction efficiency and maintenance convenience.

[0026] In this embodiment, the other end of the box body 1 is provided with a locking hole 14, and the cover plate 2 is provided with a protrusion 23 that matches the shape and size of the locking hole 14. The protrusion 23 is engaged with the locking hole 14 to achieve a locking connection between the cover plate 2 and the box body 1. This locking method is not only simple and convenient to operate, but also ensures the firmness of the cover plate 2 in the closed state, effectively preventing the cover plate 2 from being accidentally opened due to accidental contact or slight vibration, thereby ensuring the safety and stability of the internal wiring of the junction box. At the same time, the locking design of the protrusion 23 and the locking hole 14 also makes it easy for maintenance personnel to easily disassemble and install the cover plate 2 without the use of tools, further improving the maintenance convenience of the junction box. In addition, the matching shape and size of the protrusion 23 and the locking hole 14 ensures a tight fit between the cover plate 2 and the box body 1, effectively preventing external factors such as dust and moisture from corroding the internal wiring of the junction box and extending the service life of the junction box.

[0027] In this embodiment, the cover plate 2 is provided with an inclined portion 21 adjacent to the protrusion 23. The inclined portion 21 is inclined away from the cover plate 2 to facilitate the movement of the protrusion 23 to flip away from the box body 1. This design allows the construction personnel to easily push the inclined portion 21 to disengage the protrusion 23 from the locking hole 14 when the cover plate 2 needs to be opened, thereby easily opening the cover plate 2. The inclined portion 21 not only improves the convenience of operation but also makes the whole process smoother, requiring less force or complicated operations. This user-friendly design further enhances the user experience of the junction box, making it easier for construction personnel to perform line connection or maintenance operations.

[0028] The advantages of this utility model are: This invention achieves complete enclosed protection at the wire connection points by centralizing the wires of different components within a box: the wires pass through corresponding conduits into the box cavity to complete the connection, and the entire connection area is completely sealed inside the box, isolating it from external dust and moisture, thus fundamentally avoiding the contact problems caused by environmental influences in traditional exposed connections. The enclosed structure eliminates the risk of electric shock from accidental contact with exposed joints, significantly improving electrical safety. Furthermore, the centralized enclosed connection makes the wire routing more orderly, reducing tangled and messy wiring; during maintenance, there is no need to disassemble the external wiring, simply by opening the hinged cover to directly observe the internal connection status, greatly shortening troubleshooting and maintenance time. The above-disclosed embodiments are only a few specific examples of this utility model. However, this utility model is not limited thereto. Any variations that can be conceived by those skilled in the art should fall within the protection scope of this utility model.

Claims

1. A junction box, characterized in that, The device includes a box with an opening, a cover plate hinged to the opening of the box to seal the box, at least two wiring conduits fixedly connected to the inner wall of the box, and a terminal block for wire connection provided inside the box. The terminal block is located on the bottom surface opposite the opening of the box. When wiring, wires of different components enter the inner cavity of the box through different wiring conduits and are connected through the terminal block.

2. The junction box according to claim 1, characterized in that, The box body is provided with a through hole, and the wiring pipe includes an outer end, an inner end integrally formed with the outer end and having threads, and a fixing member. The diameter of the inner end is smaller than the diameter of the through hole so that the inner end passes through the through hole and enters the inner cavity of the box body. The diameter of the outer end is larger than the diameter of the through hole so that the outer end is disposed on the outer surface of the box body. The diameter of the fastener is larger than the diameter of the through hole and is threadedly connected to the inner end, thereby fixing the wiring tube to the box body.

3. The junction box according to claim 2, characterized in that, A silicone ring is attached to the inner wall of the inner end opening, and the silicone ring forms a protective part on the inner wall of the inner end opening.

4. The junction box according to claim 1, characterized in that, The bottom surface of the box is provided with fixing holes, and external bolts are used to pass through the fixing holes to fix the box to the wall.

5. The junction box according to claim 1, characterized in that, One end of the box is provided with a connecting post, and the cover plate is provided with a connecting hole corresponding to the connecting post. The connecting hole and the connecting post can be flipped and connected.

6. The junction box according to claim 5, characterized in that, The other end of the box body is provided with a locking hole, and the cover plate is provided with a protrusion that matches the shape and size of the locking hole. The protrusion is inserted into the locking hole to achieve the locking connection between the cover plate and the box body.

7. The junction box according to claim 6, characterized in that, The cover plate has an inclined portion adjacent to the protrusion, the inclined portion being inclined away from the cover plate, so as to facilitate moving the protrusion to flip away from the box body.

8. The junction box according to claim 1, characterized in that, It also includes metal corrugated tubes, which form channels for the passage of component wires. The number of metal corrugated tubes is adapted to the number of the wiring tubes, and one end of each metal corrugated tube is fixedly connected to the wiring tube, while the other end is used to connect to the protection box or LED load of the fixed emergency power supply.

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