Cable connection box arranged at top of power distribution cabinet and power distribution cabinet

Abstract

The utility model discloses a cable connection box arranged at the top of a power distribution cabinet and the power distribution cabinet, and belongs to the technical field of power distribution cabinets. Comprising a connecting box body, an insulating frame, a wire pressing module, a bus bridging unit and a waterproof wiring unit, the insulating frame comprises a frame plate, and supporting columns are fixed to the four ends of the top face of the frame plate; the supporting column is fixed to the top face of the inner side of the connecting box body through a long-strip-shaped bolt. A row of lower semicircular grooves are pressed in the top surface of one side of the frame plate at intervals; the wire pressing module comprises a pressing plate, the two sides of the pressing plate are fixed to the top face of the frame plate through bolts, and a row of upper semicircular grooves are formed in the pressing plate in the mode of directly facing the lower semicircular grooves in a pressing mode. A groove channel formed by the lower semicircular groove and the upper semicircular groove is internally provided with a wire pressing disc of an I-shaped structure. The wire pressing disc is formed by pressing an upper wire pressing groove seat and a lower wire pressing groove seat in a right opposite mode. According to the cable connection box arranged at the top of the power distribution cabinet and the power distribution cabinet, the internal sealing performance of the cable connection box can be ensured, and protection and arrangement of incoming and outgoing cables are facilitated.

Description

Technical Field

[0001] The utility model specifically relates to a cable connection box arranged on the top of a distribution cabinet and the distribution cabinet, belonging to the technical field of distribution cabinets. Background Art

[0002] The existing distribution cabinet has cables coming out from the bottom, so there is no need to consider the installation, fixing and direction of the connecting cables. However, when the distribution cabinet is installed on a floor or the distribution room is not suitable for setting a cable trench under the ground, the outgoing cables must be connected from the top. Therefore, it is necessary to set a cable connection box on the top of the distribution cabinet to protect and arrange the cables. For example, Chinese patent authorization announcement number: CN205846468U discloses a cable connection box arranged on the top of the distribution cabinet. The bottom of the cable connection box is connected to the top of the distribution cabinet body, and the front and rear sides of the cable connection box are respectively provided with There are a front sealing plate and a rear sealing plate which are easy to disassemble, and a plurality of round holes for convenient cable insertion are opened on the rear sealing plate, and a sealing rubber cable cover is installed on the round hole; after adopting the above structure, the power distribution cabinet is easy to use, safe and reliable; but when the cable connection box is connected, the front sealing plate and the rear sealing plate need to be removed before the cable connection can be carried out. After the connection is completed, the cable connection box is sealed by the front sealing plate and the rear sealing plate, which is easy to affect the sealing of the cable connection box. In addition, after the cable is connected to the cable connection box, when the cable is pulled by external force, it is easy to cause the cable to break away from the wiring position inside the cable connection box. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes a cable connection box and a distribution cabinet arranged on the top of the distribution cabinet, which can ensure the sealing inside the cable connection box and facilitate the protection and arrangement of incoming and outgoing cables.

[0004] The utility model discloses a cable connection box arranged on the top of a power distribution cabinet, comprising:

[0005] Connect the box;

[0006] The insulating frame includes a frame plate, and pillars are fixed at four ends of the top surface of the frame plate; the pillars are fixed to the inner top surface of the connection box body by long bolts; a row of lower semicircular grooves are pressed at intervals on the top surface of one side of the frame plate;

[0007] A wire pressing module, wherein the wire pressing module comprises a pressing plate, both sides of which are fixed to the top surface of the frame plate by bolts, and the pressing plate is pressed with a row of upper semicircular grooves opposite to the lower semicircular grooves; a wire pressing disc with an I-shaped structure is arranged in the channel formed by the lower semicircular grooves and the upper semicircular grooves; the wire pressing disc is composed of an upper wire pressing groove seat and a lower wire pressing groove seat facing each other and pressing together; a wire pressing bolt which is screwed on the pressing plate and is pressed against the wire pressing disc; the pressing plate is fixed to the frame plate by bolts, thereby forming a circular groove between the pressing plate and the frame plate, and the wire pressing disc is loaded through the circular groove, thereby preventing the wire pressing disc from falling out, and the bolts between the pressing plate and the frame plate can be directly rotated according to the wire diameter requirements; or the bite tightness of the wire pressing disc can be adjusted separately by the wire pressing bolts; the frame plate and the pressing plate are made of ABS engineering plastics, polycarbonate PC materials, DMC materials or SMC materials through injection molding and pressing;

[0008] A busbar jumper unit, the busbar jumper unit comprising a plurality of T-shaped conductive disks; one horizontal end of the T-shaped conductive disk is fixed to the top surface of the frame plate and is arranged on the side away from the lower semicircular groove; the other horizontal end of the T-shaped conductive disk is fixed with an inlet and outlet cable through a copper nose, and the inlet and outlet cable passes through the wire pressing disk; the vertical end of the T-shaped conductive disk is fixed with a distribution cable through a copper nose; the outer diameters of the wire pressing disks are consistent, and the aperture of the wire pressing disk can be selected according to the outer diameters of the inlet and outlet cables, and a wire pressing disk with an inner diameter that matches the outer diameters of the inlet and outlet cables is selected;

[0009] A waterproof wiring unit, the waterproof wiring unit comprises a row of waterproof connectors fixed to the outside of the connection box, the waterproof connectors are fixed to one side close to the crimping module; the incoming and outgoing cables movably pass through the waterproof connectors.

[0010] During assembly, first insert the incoming and outgoing cables into the waterproof connector, then pass through the wire pressing disk, and pull the incoming and outgoing cables into the T-shaped conductive disk position, then install the copper nose on the end of the incoming and outgoing cables, then screw on the wire pressing bolt, and use the wire pressing bolt to push down the upper wire pressing trough seat, so that the upper wire pressing trough seat and the lower wire pressing trough seat are tightly engaged with the incoming and outgoing cables, then fix the copper nose to the horizontal end of the T-shaped conductive disk, finally, rotate the waterproof connector, lock the incoming and outgoing cables for the second time, complete the installation of one incoming and outgoing cable, and then install the remaining incoming and outgoing cables; when the installation of the incoming and outgoing cables is completed, assemble the distribution cable, install the copper nose on the top of the distribution cable, and fix the copper nose to the corresponding vertical end of the T-shaped conductive disk until the assembly of the remaining distribution cables is completed and the installation of the cable connection box is completed.

[0011] Furthermore, the bottom surface of the connection box is hollow, and a retaining ring is provided at the lower inner part of the connection box. A sealing plate is fixed to the bottom surface of the retaining ring by bolts, and a plurality of wire threading pipe seats are fixed on the sealing plate at intervals; the distribution cable passes through the inside of the wire threading pipe seat; during installation, after the distribution cable and the T-shaped conductive disk are installed, the distribution cable is passed through the wire threading pipe seat of the sealing plate, and then the sealing plate is pressed onto the retaining ring, and the sealing plate and the retaining ring are pressed and fastened by bolts to ensure the sealing of the bottom installation of the connection box.

[0012] Furthermore, a rubber sealing strip of a frame-shaped structure is bonded to the top surface of the sealing plate; the sealing plate and the connection box body can be sealed as a whole through the rubber sealing strip.

[0013] A power distribution cabinet, comprising a cable connection box arranged on the top of the power distribution cabinet, and also comprising a power distribution cabinet body, wherein the top surface of the power distribution cabinet body is integrally formed with a top frame, and a wire-passing hole is provided on the inner side of the top frame on the top surface of the power distribution cabinet body, and a tube sheet seat is fixed on the top surface of the power distribution cabinet body, and a plurality of wire-passing tubes are fixed on the tube sheet seat; the wire-passing tubes are connected with the wire-passing holes; the wire-passing tubes are movably engaged with the threading tube seat, and the distribution cable is movably passed through the wire-passing tubes and the wire-passing holes and connected to the busbar of the power distribution cabinet body; the connection box body is engaged with the outside of the top frame, the bottom surface of the connection box body is pressed against the top surface of the power distribution cabinet body, and the top surface of the top frame is pressed against the bottom surface of the sealing plate; the connection box body and the side surface of the top frame are assembled by bolts Tighten; the distribution cabinet and the connection box adopt a split structure, and the distribution cabinet and the connection box are installed by mosaic assembly. After the connection box completes the arrangement and assembly of the incoming and outgoing cables and the distribution cables, the distribution cable is passed through the wire threading pipe seat of the cover plate. Then, the cover plate and the connection box are fixed to complete the wiring and assembly of the connection box. Then, the distribution cable is passed through the wire pipe, and the wire pipe is movably engaged with the wire threading pipe seat; finally, the distribution cabinet and the connection box are engaged, and the distribution cabinet and the connection box are fastened together by assembling bolts; the assembly of the distribution cabinet and the connection box is completed; finally, the distribution cable introduced into the distribution cabinet is connected to the corresponding busbar in the distribution cabinet.

[0014] Furthermore, a sealing ring is provided between the wire passing tube and the wire threading tube seat. By providing the sealing ring between the wire passing tube and the wire threading tube seat, water vapor can be prevented from entering the connection box through the gap between the wire passing tube and the wire threading tube seat.

[0015] Furthermore, the tube sheet seat and the distribution cabinet are fixed by bolts and nuts or by welding. When the tube seat and the distribution cabinet are fixed, the outside of the tube seat and the top surface of the distribution cabinet can form a sealed state. When water penetrates into the inner side of the top frame, since the tube seat and the distribution cabinet are in a sealed state, it will not penetrate into the inside of the wire hole; when water vapor enters the inner side of the top frame, since the sealing plate and the connection box are in a sealed state, and the wire pipe and the wire threading pipe seat are sealed by a sealing ring, water vapor will not penetrate into the inside of the connection box. At the same time, since the top end of the wire pipe is sealed inside the connection box, water vapor will not enter the inside of the distribution cabinet from the wire pipe, and will not enter the inside of the distribution cabinet from the wire hole; the sealing of the connection box and the inside of the distribution cabinet can be ensured.

[0016] Furthermore, the wire passing tube protrudes out of the top surface of the top frame, which facilitates the connection between the wire passing tube and the wire threading tube seat during installation.

[0017] Compared with the prior art, the cable connection box and distribution cabinet of the utility model, which are arranged on the top of the distribution cabinet, adopt a T-shaped conductive disk to transfer and arrange the cables inside the distribution cabinet and the incoming and outgoing cables. The wiring is simple and convenient, and the cables inside the distribution cabinet can be prevented from bending and entangled. The distribution cabinet body and the cable connection box are installed in a chimeric sealed manner to ensure the internal sealing of the cable connection box. When wiring the cables, waterproof connectors and wire crimping modules are used to lock the incoming and outgoing cables to prevent the incoming and outgoing cables from being separated from the T-shaped conductive disk when the incoming and outgoing cables are pulled by external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic diagram of the assembly structure of the insulation frame, the wire pressing module and the busbar jumper unit.

[0019] Figure 2 It is a schematic diagram of the local structure of the insulation frame of the utility model.

[0020] Figure 3 This is a schematic diagram of the overall structure of the cable connection box of the utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the cable connection box and the power distribution cabinet of the utility model before assembly.

[0022] Figure 5 For the utility model Figure 4 Schematic diagram of the local enlarged structure at point A in the middle.

[0023] Figure 6 This is a schematic diagram of the overall structure of the power distribution cabinet of the utility model.

[0024] Figure numerals: 1, connecting box, 2, frame plate, 3, pillar, 4, lower semicircular groove, 5, pressure plate, 6, wire pressing disc, 61, upper wire pressing groove seat, 62, lower wire pressing groove seat, 7, copper nose, 8, wire pressing bolt, 9, T-shaped conductive disc, 10, incoming and outgoing cables, 11, distribution cable, 12, waterproof connector, 13, sealing plate, 14, wire threading pipe seat, 15, rubber sealing strip, 16, distribution cabinet, 17, top frame, 18, tube plate seat, 19, wire passing pipe, 20, assembly bolts. DETAILED DESCRIPTION

[0025] Example:

[0026] like Figures 1 to 6 The cable connection box shown on the top of the power distribution cabinet includes:

[0027] Connect box 1;

[0028] The insulating frame includes a frame plate 2, and pillars 3 are fixed to the four ends of the top surface of the frame plate 2; the pillars 3 are fixed to the inner top surface of the connection box 1 through long bolts; a row of lower semicircular grooves 4 are pressed at intervals on the top surface of one side of the frame plate 2;

[0029] A wire pressing module, the wire pressing module includes a pressing plate 5, the two sides of the pressing plate 5 are fixed to the top surface of the frame plate 2 by bolts, and the pressing plate 5 is pressed with a row of upper semicircular grooves facing the lower semicircular groove 4; a wire pressing disc 6 of an I-shaped structure is arranged in the groove formed by the lower semicircular groove 4 and the upper semicircular groove; the wire pressing disc 6 is composed of an upper wire pressing groove seat 61 and a lower wire pressing groove seat 62 facing each other and pressing together; a wire pressing bolt 8 is screwed on the pressing plate 5 and tightened against the wire pressing disc 6; the pressing plate 5 is fixed to the frame plate 2 by bolts, so that a circular groove is formed between the pressing plate 5 and the frame plate 2, and the wire pressing disc 6 is loaded through the circular groove, so that the wire pressing disc 6 can be prevented from falling out, and the bolts between the pressing plate 5 and the frame plate 2 can be directly rotated according to the wire diameter requirements; or the bite tightness of the wire pressing disc 6 can be adjusted separately by the wire pressing bolt 8; the frame plate 2 and the pressing plate 5 are made of ABS engineering plastics, polycarbonate PC material, DMC material or SMC material by injection molding and pressing;

[0030] A busbar jumper unit, the busbar jumper unit comprising a plurality of T-shaped conductive disks 9; one horizontal end of the T-shaped conductive disk 9 is fixed to the top surface of the frame plate 2 and is arranged on a side away from the lower semicircular groove 4; the other horizontal end of the T-shaped conductive disk 9 is fixed with an inlet and outlet cable 10 through a copper nose 7, and the inlet and outlet cable 10 passes through a wire pressing disk 6; a distribution cable 11 is fixed to the vertical end of the T-shaped conductive disk 9 through a copper nose 7; the outer diameters of the wire pressing disks 6 are consistent, and the aperture of the wire pressing disk 6 can be selected according to the outer diameter of the inlet and outlet cable 10, and a wire pressing disk 6 with an inner diameter that matches the inlet and outlet cable 10 is selected;

[0031] The waterproof wiring unit includes a row of waterproof connectors 12 fixed to the outside of the connection box 1 , and the waterproof connectors 12 are fixed to one side close to the crimping module; the incoming and outgoing cables 10 movably pass through the waterproof connectors 12 .

[0032] During assembly, the incoming and outgoing cables are first inserted into the waterproof connector 12, then passed through the wire pressing disk 6, and pulled into the position of the T-shaped conductive disk 9, then, the copper nose 7 is installed on the end of the incoming and outgoing cables, then, the wire pressing bolt 8 is screwed on, and the upper wire pressing groove seat 61 is pushed down by the wire pressing bolt 8, so that the upper wire pressing groove seat 61 and the lower wire pressing groove seat 62 are tightly engaged with the incoming and outgoing cables, and then the copper nose 7 is fixed to the horizontal end of the T-shaped conductive disk 9, and finally, the waterproof connector 12 is rotated to perform secondary locking on the incoming and outgoing cables to complete the installation of one incoming and outgoing cable, and then the remaining incoming and outgoing cables are installed; when the installation of the incoming and outgoing cables is completed, the distribution cable 11 is assembled, the copper nose 7 is installed on the top of the distribution cable 11, and the copper nose 7 is fixed to the corresponding vertical end of the T-shaped conductive disk 9 until the assembly of the remaining distribution cables 11 is completed, and the installation of the cable connection box is completed.

[0033] The bottom surface of the connection box 1 is hollow, and a retaining ring is provided at the lower inner part of the connection box 1. A sealing plate 13 is fixed to the bottom surface of the retaining ring by bolts, and a plurality of wire threading pipe seats 14 are fixed on the sealing plate 13 at intervals; the distribution cable 11 passes through the inside of the wire threading pipe seat 14; during installation, after the distribution cable 11 and the T-shaped conductive disk 9 are installed, the distribution cable 11 is passed through the wire threading pipe seat 14 of the sealing plate 13, and then the sealing plate 13 is pressed onto the retaining ring, and the sealing plate 13 and the retaining ring are pressed and fastened by bolts to ensure the sealing of the bottom installation of the connection box 1.

[0034] A rubber sealing strip 15 of a frame-shaped structure is bonded to the top surface of the sealing plate 13 ; the rubber sealing strip 15 can seal the sealing plate 13 and the connection box 1 as a whole.

[0035] A power distribution cabinet, comprising a cable connection box arranged on the top of the power distribution cabinet, and also comprising a power distribution cabinet body 16, wherein the top surface of the power distribution cabinet body 16 is integrally formed with a top frame 17, and a wire-passing hole is provided on the top surface of the power distribution cabinet body 16 on the inner side of the top frame 17, and a tube sheet seat 18 is fixed to the top surface of the power distribution cabinet body 16, and a plurality of wire-passing tubes 19 are fixed to the tube sheet seat 18; the wire-passing tubes 19 are connected to the wire-passing holes; the wire-passing tubes 19 are movably engaged with the threading tube seat 14, and the distribution cable 11 is movably passed through the wire-passing tubes 19 and the wire-passing holes and connected to the busbar of the power distribution cabinet body 16; the connection box body 1 is engaged with the outside of the top frame 17, the bottom surface of the connection box body 1 is pressed against the top surface of the power distribution cabinet body 16, and the top surface of the top frame 17 is pressed against the bottom surface of the sealing plate 13; the connection box body 1 and the side surface of the top frame 17 are fastened by assembling bolts 20 Solid; the distribution cabinet 16 and the connection box 1 adopt a split structure, and the distribution cabinet 16 and the connection box 1 are installed by mosaic assembly. After the connection box 1 completes the arrangement and assembly of the incoming and outgoing cables 10 and the distribution cable 11, the distribution cable 11 is threaded through the wire threading pipe seat 14 of the sealing plate 13, and then the sealing plate 13 is fixed to the connection box 1 to complete the wiring and assembly of the connection box 1, and then the distribution cable 11 is passed through the wire tube 19, and the wire tube 19 is movably embedded with the wire threading pipe seat 14; finally, the distribution cabinet 16 and the connection box 1 are embedded, and the distribution cabinet 16 and the connection box 1 are fastened together by the assembly bolts 20; the assembly of the distribution cabinet 16 and the connection box 1 is completed; finally, the distribution cable 11 introduced into the distribution cabinet 16 is connected to the corresponding busbar in the distribution cabinet 16.

[0036] A sealing ring is provided between the wire passing tube 19 and the wire threading tube seat 14 , and by providing the sealing ring between the wire passing tube 19 and the wire threading tube seat 14 , water vapor can be prevented from entering the connection box 1 through the gap between the wire passing tube 19 and the wire threading tube seat 14 .

[0037] The tube sheet seat 18 and the distribution cabinet 16 are tightly fixed or welded by bolts and nuts. When the tube sheet seat 18 and the distribution cabinet 16 are fixed, the outside of the tube sheet seat 18 and the top surface of the distribution cabinet 16 can be sealed. When water penetrates into the inner side of the top frame 17, since the tube sheet seat 18 and the distribution cabinet 16 are in a sealed state, it will not penetrate into the inside of the wire hole; when water vapor enters the inner side of the top frame 17, since the sealing plate 13 and the connection box 1 are in a sealed state, and the wire pipe 19 and the threading tube sheet seat 18 are sealed by a sealing ring, water vapor will not penetrate into the inside of the connection box 1 at this time. At the same time, since the top end of the wire pipe 19 is sealed inside the connection box 1, water vapor will not enter the inside of the distribution cabinet 16 from the wire pipe 19, and will not enter the inside of the distribution cabinet 16 from the wire hole; the sealing of the connection box 1 and the distribution cabinet 16 can be guaranteed.

[0038] The wire passing tube 19 protrudes from the top surface of the top frame 17 , which facilitates the connection between the wire passing tube 19 and the threading tube seat 14 during installation.

[0039] The above embodiments are only preferred implementations of the present invention, so any equivalent changes or modifications made according to the structures, features and principles described in the scope of application of the present invention are included in the scope of application of the present invention.

Claims

1. A cable connection box arranged on the top of a power distribution cabinet, characterized in that: include Connect the box, The insulating frame includes a frame plate, and pillars are fixed at four ends of the top surface of the frame plate; the pillars are fixed to the inner top surface of the connection box body by long bolts; a row of lower semicircular grooves are pressed at intervals on the top surface of one side of the frame plate; The wire pressing module includes a pressing plate, both sides of which are fixed to the top surface of the frame plate by bolts, and the pressing plate is pressed with a row of upper semicircular grooves opposite to the lower semicircular grooves; a wire pressing disk with an I-shaped structure is arranged in the channel formed by the lower semicircular grooves and the upper semicircular grooves; the wire pressing disk is composed of an upper wire pressing groove seat and a lower wire pressing groove seat facing each other and pressing together; a wire pressing bolt that is screwed on the pressing plate and is tightened against the wire pressing disk; A busbar jumper unit, the busbar jumper unit comprising a plurality of T-shaped conductive disks; one horizontal end of the T-shaped conductive disk is fixed to the top surface of the frame plate and is arranged on the side away from the lower semicircular groove; the other horizontal end of the T-shaped conductive disk is fixed with an inlet and outlet cable through a copper nose, and the inlet and outlet cable passes through the wire pressing disk; the vertical end of the T-shaped conductive disk is fixed with a distribution cable through a copper nose; A waterproof wiring unit, the waterproof wiring unit comprises a row of waterproof connectors fixed to the outside of the connection box, the waterproof connectors are fixed to one side close to the wire pressing module; the incoming and outgoing cables movably pass through the waterproof connectors.

2. The cable connection box arranged on the top of the power distribution cabinet according to claim 1, characterized in that: The bottom surface of the connection box is hollow, a retaining ring is provided at the lower inner part of the connection box, a sealing plate is fixed to the bottom surface of the retaining ring by bolts, and a plurality of wire threading pipe seats are fixed on the sealing plate at intervals; the distribution cable passes through the inside of the wire threading pipe seat.

3. The cable connection box arranged on the top of the power distribution cabinet according to claim 2, characterized in that: A rubber sealing strip with a frame-shaped structure is bonded to the top surface of the sealing plate.

4. A power distribution cabinet, comprising the cable connection box arranged on the top of the power distribution cabinet as claimed in any one of claims 1 to 3, characterized in that: It also includes a distribution cabinet, the top surface of the distribution cabinet is integrally formed with a top frame, the top surface of the distribution cabinet is provided with a wire passing hole on the inner side of the top frame, the top surface of the distribution cabinet is fixed with a tube sheet seat, and a plurality of wire passing tubes are fixed on the tube sheet seat; the wire passing tubes are connected with the wire passing holes; the wire passing tubes are movably engaged with the wire threading tube seat, and the distribution cable is movably passed through the wire passing tubes and the wire passing holes and connected to the busbar of the distribution cabinet; the connection box is engaged with the outside of the top frame, the bottom surface of the connection box is pressed with the top surface of the distribution cabinet, and the top surface of the top frame is pressed against the bottom surface of the sealing plate; the connection box and the side surfaces of the top frame are fastened by assembly bolts.

5. The power distribution cabinet according to claim 4, characterized in that: A sealing ring is arranged between the wire passing tube and the wire threading tube seat.

6. The power distribution cabinet according to claim 4, characterized in that: The tube sheet seat and the power distribution cabinet are fixed by bolts and nuts or by welding.

7. The power distribution cabinet according to claim 4, characterized in that: The wire passing tube protrudes from the top surface of the top frame.

Images