Low-voltage power concentrator

Abstract

A low-voltage power concentrator comprises a shell, a plurality of wiring terminal connectors are arranged at the lower end of the shell, a plurality of wiring holes used for wiring are formed in the sides, away from the shell, of the wiring terminal connectors, the side faces, away from the shell, of the wiring holes are outer side faces, inserting grooves arranged around the peripheries of the wiring holes are formed in the outer side faces, and the inserting grooves are not communicated with the wiring holes. A protection box is arranged on the outer side face, an opening is formed in one side of the protection box, the outer wall of the protection box is matched with the inserting groove, the end, provided with the opening, of the protection box is inserted into the inserting groove, and the inserting direction is the axis direction of the wiring hole. According to the utility model, the protection box can be inserted into the outer side of each wiring hole, and the protection boxes can play a role in sealing and protecting the interiors of the wiring holes, so that the phenomenon of poor contact with a wire caused by oxidation of the part, connected with the wire, in the wiring terminal is avoided; when wiring is not carried out in the wiring hole, the cover sheet is in sealed connection with the protection box, and when wiring is needed in the wiring hole, connection between an external wire and the wiring terminal joint is realized by dismounting the cover sheet.

Description

Technical Field

[0001] The utility model relates to the technical field of low - voltage power concentrators, and specifically relates to a low - voltage power concentrator. Background Art

[0002] A low - voltage power concentrator is a device used for centralized management of low - voltage power supply, which is widely used in various power systems. The main function of this device is to converge multiple low - voltage power lines, unify their processing or distribution. Through centralized management, the power system can be monitored and controlled uniformly, improving the convenience of operation. Some concentrators also have a voltage regulation function, which can adjust the power to a voltage level suitable for the load demand.

[0003] In the prior art, a low - voltage power concentrator usually uses a transparent protective cover to protect the fuselage, preventing dust from settling on the surface and interfering with residents' electricity use. However, the wiring terminals for wiring are usually exposed to the air. The wiring terminals being exposed to the air for a long time may react with oxygen in the air to form an oxide layer. This oxide layer will increase the contact resistance, resulting in poor contact. Moreover, environmental factors such as moisture and pollutants in the air may also cause corrosion of the metal surface, further affecting the stability and reliability of the electrical connection. Summary of the Utility Model

[0004] To solve the technical problems existing in the above - mentioned background art, the utility model provides a low - voltage power concentrator.

[0005] The technical solution of the utility model is as follows:

[0006] A low - voltage power concentrator includes a housing. A plurality of wiring terminal connectors are provided at the lower end of the housing. On the side of the wiring terminal connector away from the housing, there are a plurality of wiring holes for wiring. The side of the wiring hole away from the housing is the outer side. On the outer side, there is a slot provided around the outer periphery of the wiring hole. The slot is not communicated with the wiring hole. A protective box is provided on the outer side. One side of the protective box has an opening. The outer wall of the protective box is adapted to the slot, and the end with the opening is inserted into the slot. The insertion direction is the axial direction of the wiring hole.

[0007] A wire - passing hole not less than the inner diameter of the wiring hole is opened on the end face of the protective box away from the opening. A cover plate is provided on the wire - passing hole, and the cover plate is detachably and hermetically connected to the wire - passing hole.

[0008] A protective box can be inserted outside each wiring hole. The protective box can play a role in sealing and protecting the inside of the wiring hole, preventing oxidation of the part inside the wiring terminal connected to the wire, which may cause poor contact with the wire. When there is no wire connected in the wiring hole, the cover plate is hermetically connected to the protective box. When wiring is required in the wiring hole, the connection between the external wire and the wiring terminal connector is realized by removing the cover plate, without the need to frequently remove the protective box.

[0009] Regarding the shape of the wire threading hole, the shape of the wire threading hole is circular or polygonal. The polygon is generally a regular polygon, which is convenient for manufacturing and use. The cover plate is adapted to the wire threading hole.

[0010] To facilitate the installation of the cover plate on the outer side of the protection box, a cover plate placement groove is provided along the outer circumference of the wire threading hole away from the outer side of the housing. The depth of the cover plate placement groove is not less than the thickness of the cover plate. If the depth of the cover plate placement groove is less than the thickness of the cover plate, it is not conducive to the disassembly of the cover plate.

[0011] Regarding the connection structure between the cover plate and the protection box, at least two symmetrically arranged magnetic attraction members are provided on one side of the inner wall of the protection box close to the cover plate placement groove. A magnetic attracting member is provided on the cover plate, and the cover plate is magnetically connected to the protection box, which is convenient for the installation and disassembly of the cover plate.

[0012] To facilitate the disassembly of the cover plate, the magnetic attracting member is provided on the outer side of the cover plate away from the housing. The cover plate can be rotated through the two magnetic attracting members to misalign the magnetic attracting member and the magnetic attraction member, realizing the quick disassembly of the cover plate and the protection box.

[0013] Regarding the shape of the protection box, the outer wall shape of the protection box can be set as a circular or polygonal structure.

[0014] To realize the protection box being hermetically covered outside the wiring hole, a convex sealing ring is provided on one side of the protection box with an opening, and the sealing ring is adapted to the slot.

[0015] To facilitate maintenance personnel to sequentially arrange multiple wires, reduce chaos and entanglement, and facilitate wiring and subsequent maintenance, a fixing plate is provided on one side of the wiring terminal joint along the axis direction of the wiring hole. A wiring sleeve is provided on the fixing plate, and the wiring sleeve is coaxial with the wiring hole.

[0016] To prevent the wire from being excessively bent on the side of the wiring sleeve away from the housing, affecting its service life, the inner diameter of the wiring sleeve is set to be 0.5 - 2 mm larger than the inner diameter of the wiring hole, so that the wire can be smoothly bent on the side of the wiring sleeve away from the housing.

[0017] The plug-in structure between the protection box and the slot is that a convex block is provided on the outer side of the protection box, and a groove adapted to the convex block is provided on the inner wall of the slot.

[0018] The beneficial effects of the present utility model are as follows:

[0019] By providing slots for installing protective boxes on the outside of each wiring hole in the terminal connector, when installing this low-voltage power concentrator, first fix the housing to the wall with screws, and then fix the protective boxes to multiple slots in sequence. When not in use, the cover plate inside the protective box is fixed, and the cover plate and the protective box form a sealed housing at this time, which can protect the metal surface of the wiring hole without wiring. The protective box is fixed to the outside of the wiring hole through the slot. When wiring, the cover plate in the protective box can be removed, the wire is first passed through the wiring sleeve and then through the wire passing hole of the protective box, and finally fixed in the wiring hole. At this time, the protective box can form a relatively sealed environment, effectively protecting the internal wiring from being directly exposed to the air;

[0020] It should be noted that there are also protective housings for protecting terminal connectors in the prior art, but the protective housing is an integral protective housing and can only be installed or disassembled as a whole. For the case of connecting only one or not all terminal connectors, the protective housing also needs to be disassembled as a whole, and the unconnected terminal connectors will be directly exposed to the air and undergo redox reactions; while the multiple protective boxes of the present invention are separately arranged and can be wired according to the number and specified positions of the terminal connectors that need to be wired, and the unconnected terminal connectors can still be sealed and protected;

[0021] By providing a wiring sleeve and a protective box that can fix and guide the wire, the wires are convenient to be classified when fixed, facilitating the maintenance personnel to sort multiple wires in sequence, reducing chaos and entanglement, and facilitating wiring and subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In the drawings:

[0023] Figure 1 is the front view;

[0024] Figure 2 is the three-dimensional structure diagram;

[0025] Figure 3 is the partial structure diagram;

[0026] Figure 4 is the attached Figure 3 enlarged structure diagram at position A in;

[0027] Figure 5 is the first connection structure diagram of the protective box and the cover plate;

[0028] Figure 6 is the second connection structure diagram of the protective box and the cover plate;

[0029] Figure 7 is the structure diagram of the protective box;

[0030] The components represented by the reference numerals in the figures are as follows:

[0031] 1. Housing; 11. Protective cover; 12. Dial block; 13. Mounting plate; 14. Display screen; 15. Control button; 17. Indicator light; 18. Label sticker; 2. Terminal connector; 21. Wiring hole; 22. Slot; 23. Groove; 24. Protection box; 241. Threading hole; 242. Cover plate placement groove; 25. Bump; 26. Cover plate; 27. Fixed plate; 28. Wiring sleeve; 29. Magnetic part; 30. Magnet attracting part; 31. Sealing ring. Detailed implementation manners

[0032] See Figure 1 and Figure 2 As shown in and, a low-voltage power concentrator includes a housing 1. Mounting plates 13 are fixedly connected to the four corners of the housing 1. One end of the housing 11 is rotatably connected to a protective cover 11. A dial block 12 is fixedly connected to the middle of one end of the protective cover 11. A plurality of indicator lights 17 are evenly and fixedly installed above the middle of the housing 1. Label stickers 18 are pasted below the plurality of indicator lights 17. A display screen 14 is fixedly installed on one side of the middle of the upper part of the housing 1. A control button 15 is fixedly installed on one side of the display screen 14.

[0033] See Figure 3 and Figure 4 As shown in and, a plurality of terminal connectors 2 are provided at the lower end of the housing 1. A plurality of wiring holes 21 for wiring are provided on the side of the terminal connector 2 away from the housing 1. The side of the wiring hole 21 away from the housing 1 is the outer side. A slot 22 surrounding the outer circumference of the wiring hole 21 is provided on the outer side. The slot 22 is not communicated with the wiring hole 21. A protection box 24 is provided on the outer side. One side of the protection box 24 has an opening. The outer wall of the protection box 24 is adapted to the slot 22, and the end with the opening is inserted into the slot 22, and the insertion direction is the axial direction of the wiring hole 21.

[0034] In this embodiment, the outer wall shape of the protection box 24 is set as a polygonal structure to prevent the protection box 24 from rotating in the slot 22, which is not convenient for fixing. To realize that the protection box 24 is hermetically covered outside the wiring hole 21, an outwardly convex sealing ring 31 is provided on the side of the protection box 24 where the opening is provided. The sealing ring 31 is adapted to the slot 22. When the end of the protection box 24 with the opening is inserted into the slot 22, the outwardly convex sealing ring 31 will contact the bottom surface inside the slot 22, realizing the effect of the protection cover sealing the wiring hole 21.

[0035] It should be noted that in the prior art, there is also a protective housing 1 for protecting the terminal connector 2. However, the protective housing 1 is an integral protective housing 1 and can only be installed or disassembled as a whole. For the case where only one or not all terminal connectors 2 are connected, the protective housing 1 also needs to be disassembled as a whole, and the unconnected terminal connectors 2 will be directly exposed to the air, resulting in redox reactions. In contrast, the multiple protective boxes 24 of the present utility model are separately arranged and can be wired according to the number and specified positions of the terminal connectors 2 that need to be wired. The unconnected terminal connectors 2 can still be hermetically protected.

[0036] When the low-voltage power concentrator is normally installed on the wall, the opening of the protective box 24 is arranged upward. To prevent the protective box 24 from detaching from the slot 22, a convex block 25 is provided on the outer side of the protective box 24, and a groove 23 adapted to the convex block 25 is provided on the inner wall of the slot 22, so that the protective box 24 can be clamped with the slot 22 when inserted into the slot 22.

[0037] A wire passing hole 241 not smaller than the inner diameter of the wiring hole 21 is provided on the end face of the protective box 24 far away from the opening. A cover plate 26 is provided on the wire passing hole 241, and the cover plate 26 is detachably and hermetically connected to the wire passing hole 241. In this embodiment, the shape of the wire passing hole 241 is circular, which is convenient for manufacturing and use. The cover plate 26 is adapted to the wire passing hole 241 and is a circular cover plate 26. To facilitate the installation of the cover plate 26 on the outer side of the protective box 24, a cover plate placement groove 242 is provided along the outer circumference of the outer side of the wire passing hole 241 away from the housing 1. The depth of the cover plate placement groove 242 is not less than the thickness of the cover plate 26. If the depth of the cover plate placement groove 242 is less than the thickness of the cover plate 26, it is not conducive to the disassembly of the cover plate 26.

[0038] The functions that the above structure can achieve are as follows: By providing slots 22 capable of installing protective boxes 24 on the outside of each wiring hole 21 opened in the terminal connector 2, when installing the low-voltage power concentrator, first fix the housing 1 on the wall with screws, and then fix the protective boxes 24 in the multiple slots 22 in sequence. When the protective box 24 is not in use, the cover plate 26 inside is fixed, and the cover plate 26 and the protective box 24 form a sealed housing 1 at this time, which can protect the metal surface of the unconnected wiring holes 21. The protective box 24 is fixed on the outside of the wiring hole 21 through the slot 22. When wiring, the cover plate 26 on one side of the protective box 24 can be removed, the wire is first passed through the wiring sleeve 28 and then through the wire passing hole 241 of the protective box 24, and finally fixed in the wiring hole 21. At this time, the protective box 24 can form a relatively sealed environment, which can effectively protect the internal wiring from being directly exposed to the air. After wiring is completed, debugging can be carried out through the control button 15. The user can view the debugging options through the display screen 14, and the indicator lights 17 below display various indication signals. The label sticker 18 below the indicator lights 17 explains the functions of each indicator light 17.

[0039] See Figure 5 、 Figure 6 and Figure 7 As shown, regarding the connection structure between the cover plate 26 and the protection box 24, at least two symmetrically arranged magnetic attraction members 29 are provided on one side of the inner wall of the protection box 24 close to the cover plate placement groove 242, and a magnetic attracting member 30 is provided on the cover plate 26 to cooperate with the magnetic attraction member 29. The cover plate 26 is magnetically connected to the protection box 24, which facilitates the installation and disassembly of the cover plate 26. To facilitate the disassembly of the cover plate 26, the magnetic attracting member 30 is arranged on the outer side of the cover plate 26 away from the housing 1, and the cover plate 26 can be rotated through the two magnetic attracting members 30 to misalign the magnetic attracting member 30 and the magnetic attraction member 29, realizing the quick disassembly of the cover plate 26 and the protection box 24.

[0040] See Figure 2 and Figure 3 As shown, a fixing plate 27 is provided on one side of the wiring terminal joint 2 along the axial direction of the wiring hole 21, and a wiring sleeve is provided on the fixing plate 27, and the wiring sleeve is coaxial with the wiring hole 21. By providing the wiring sleeve 28 and the protection box 24 that can fix and guide the electric wire, the electric wires are convenient to classify during fixation, facilitating maintenance personnel to sequentially arrange multiple electric wires, reducing chaos and entanglement, facilitating wiring and subsequent maintenance. To prevent the electric wire from being excessively bent on the side of the wiring sleeve 28 away from the housing 1 and affecting its service life, the inner diameter of the wiring sleeve 28 is set to be 0.5 - 2 mm larger than the inner diameter of the wiring hole 21, facilitating the electric wire to be smoothly bent on the side of the wiring sleeve 28 away from the housing 1.

Claims

1. A low-voltage power concentrator, comprising a housing (1), a plurality of terminal connectors (2) are provided at the lower end of the housing (1), and a plurality of wiring holes (21) for wiring are provided on one side of the terminal connector (2) away from the housing (1), characterized in that, One side of the wiring hole (21) away from the housing (1) is the outer side surface. A slot (22) is provided on the outer side surface and is arranged around the outer periphery of the wiring hole (21). The slot (22) is not communicated with the wiring hole (21). A protective box (24) is provided on the outer side surface. One side of the protective box (24) has an opening. The outer wall of the protective box (24) is adapted to the slot (22), and the end with the opening is inserted into the slot (22), and the insertion direction is the axial direction of the wiring hole (21). A threading hole (241) not smaller than the inner diameter of the wiring hole (21) is provided on the end surface of the protective box (24) away from the opening. A cover piece (26) is provided on the threading hole (241), and the cover piece (26) is detachably and sealingly connected to the threading hole (241).

2. The low-voltage power concentrator according to claim 1, wherein The shape of the threading hole (241) is circular or polygonal, and the cover piece (26) is adapted to the threading hole (241).

3. A low-voltage power concentrator according to claim 1, characterized in that, A cover piece placement groove (242) is provided along the outer periphery of the outer side surface of the threading hole (241) away from the housing (1), and the depth of the cover piece placement groove (242) is not smaller than the thickness of the cover piece (26).

4. A low-voltage power concentrator according to claim 1, characterized in that, At least two symmetrically arranged magnetic attraction members (29) are provided on one side surface of the inner wall of the protective box (24) close to the cover piece placement groove (242), and a magnetic attracting member (30) cooperating with the magnetic attraction member (29) is provided on the cover piece (26).

5. The low-voltage power concentrator according to claim 4, characterized in that, The magnetic attracting member (30) is provided on the outer side surface of the cover piece (26) away from the housing (1).

6. A low-voltage power concentrator according to claim 1, characterized in that, The outer wall shape of the protective box (24) is circular or polygonal.

7. A low voltage power concentrator according to claim 6, characterized in that: A convex sealing ring (31) is provided on the side surface of the protective box (24) where the opening is provided, and the sealing ring (31) is adapted to the slot (22).

8. The low-voltage power concentrator according to claim 1, characterized in that: A fixing plate (27) is provided on one side of the terminal joint (2) along the axial direction of the wiring hole (21), and a wiring sleeve (28) is provided on the fixing plate (27), and the wiring sleeve (28) is coaxial with the wiring hole (21).

9. The low-voltage power concentrator according to claim 8, characterized in that: The inner diameter of the wiring sleeve (28) is 0.5 - 2 mm larger than the inner diameter of the wiring hole (21).

10. A low-voltage power concentrator according to claim 1, characterized in that, A convex block (25) is provided on the outer side surface of the protective box (24), and a groove (23) adapted to the convex block (25) is provided on the inner wall of the slot (22).

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