Modular assembly structure of three-chamber isolated electric energy metering box

Abstract

The application belongs to the technical field of electric energy metering box, and discloses a modular assembly structure of a three-chamber isolated electric energy metering box, which comprises an incoming line box, an electric meter box and an outgoing line box arranged in sequence along the transverse direction; the incoming line box is internally provided with an incoming line switch; the electric meter box is internally provided with a plurality of groups of metering electric meters assembled by means of a mounting rack; the outgoing line box is internally provided with a plurality of groups of outgoing line modules; the incoming line box and the electric meter box are provided with a connecting device one for realizing electrical conduction therebetween; the electric meter box and the outgoing line box are provided with a connecting device two for realizing electrical conduction therebetween; the electric meter box is externally provided with a splicing device for completing assembly and fixation with the incoming line box and the outgoing line box respectively. The application separates the incoming line box, the electric meter box and the outgoing line box from each other, and the wiring of each box body can be independently implemented without the need of complex cable threading and line layout operations across the box bodies; the splicing device completes assembly, and the connecting device one and the connecting device two realize electrical connection between the incoming line box, the outgoing line box and the electric meter box without the need of complex on-site threading operations.

Description

Technical Field

[0001] This invention relates to the field of electricity metering box technology, and in particular to a modular assembly structure for a three-chamber isolated electricity metering box. Background Technology

[0002] An electricity metering box is a complete set of devices used to install electricity meters, transformers, junction boxes, and other metering equipment to measure, monitor, and manage the electricity consumption of power users. It is widely used in various electricity consumption scenarios such as residential communities, commercial buildings, industrial and mining enterprises, and rural power grids. It is the legally mandated metering equipment for trade settlement between electricity suppliers and users. According to voltage levels, it can be divided into low-voltage and high-voltage metering boxes. Low-voltage metering boxes have a voltage of 380V / 220V and are generally used in residential areas, shops, and factories. High-voltage metering boxes have a voltage of 6kV, 10kV, and above and are generally used in substations and dedicated high-voltage transformer stations. According to structure, it is divided into direct-connection type and transformer-connection type. The direct-connection type has the electricity meter directly connected in series in the circuit and is suitable for users with low current, such as ordinary residential users. The transformer-connection type is suitable for users with high current, such as shopping malls and industrial enterprises.

[0003] Most existing electricity metering boxes are integrated structures, typically employing a three-compartment isolation design: an inlet compartment, a meter compartment, and an outlet compartment. The inlet compartment contains components such as an inlet switch and copper busbars, which are used to introduce power from the outside into the electricity metering box for main switch control. The meter compartment mainly contains the electricity meter, meter bracket, and connectors, which are used to measure electricity consumption. The outlet compartment contains outlet switches and terminals, whose main function is to connect the meter to the user, enabling branch circuit protection and control.

[0004] Although the three-chamber isolation integrated enclosure can realize the zoning of each functional circuit, the internal space layout is complicated after the enclosure is divided by partitions. Each chamber requires a cable passage for the incoming cable to pass through. The operating space is small and the cable path is limited during cable laying, making the cable laying operation difficult. The enclosure assembly and on-site wiring are not very convenient. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a modular assembly structure for a three-chamber isolated power metering box.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a modular assembly structure of a three-chamber isolated power metering box, comprising an inlet box, a meter box, and an outlet box arranged sequentially along the horizontal direction; the inlet box is equipped with an inlet switch, the meter box is equipped with several sets of metering meters using a mounting bracket, and the outlet box is equipped with multiple sets of outlet modules; a first connection device for achieving electrical conduction between the inlet box and the meter box is provided, and a second connection device for achieving electrical conduction between the meter box and the outlet box is provided; a splicing device is provided on the outside of the meter box for assembling and fixing it with the inlet box and the outlet box respectively.

[0007] By adopting the above technical solution, the electricity metering box is divided into three isolated and independent cabinet modules: an inlet box, a meter box, and an outlet box. During the inlet wiring process, only the corresponding wiring operations need to be completed in the inlet box, meter box, and outlet box. Then, the inlet box, meter box, and outlet box are spliced ​​and installed by the splicing device. Connection device one can establish the electrical connection between the inlet box and the meter box, and connection device two can establish the electrical connection between the meter box and the outlet module. There is no need for complicated wiring operations. Each module can be pre-installed and wired in the factory. On-site, only assembly and docking are required for it to be put into use, resulting in higher assembly and wiring efficiency.

[0008] Furthermore, the outgoing module includes a frame inserted into the outgoing box, an outgoing pipe fixed on the surface of the frame, and multiple outgoing switches installed in the frame. The surface of the incoming box is fixedly connected to the incoming pipe. The outgoing module also includes a limiting unit for limiting the frame.

[0009] By adopting the above technical solution, the frame can be installed in the outgoing box through the limiting unit, and then electrical conduction is achieved through the connecting device two. The multiple outgoing modules in the outgoing box can be added or removed arbitrarily according to user needs, so as to achieve flexible configuration.

[0010] Furthermore, the limiting unit includes a knob rod rotatably connected to one side of the frame and a chuck fixed on the knob rod in a semi-circular shape, and the surface of the cable outlet box is provided with a slot for the chuck to be inserted.

[0011] By adopting the above technical solution, after the frame is inserted into the cable outlet box, rotating the knob will cause the chuck to rotate and engage in the slot, thereby restricting the frame in the cable outlet box. The limiting unit can be replaced with a locking bolt lock, which is controlled by a matching key. The locking bolt lock and the slot work together to lock and limit the frame, effectively improving the overall anti-theft and anti-accidental dismantling security performance.

[0012] Furthermore, the connecting device includes multiple sets of insulating sleeves fixed in the inlet box, multiple sets of insulating sleeves fixed in the meter box, terminal blocks 1 and 2 respectively fixed in insulating sleeves 1 and 2, and copper post 1 fixed on terminal block 1. The copper post 1 is inserted into the inner wall of terminal block 2.

[0013] By adopting the above technical solution, after the incoming line box and the meter box are assembled, each copper post is inserted into the inside of the terminal block 2, so that the terminal block 1 and the terminal block 2 can quickly form an electrical connection; multiple sets of terminal blocks 1 are arranged in sections, one part is used to connect the three-phase live wires A, B, and C output from the incoming line switch, and the other part is used to connect the N-phase neutral wire. The multiple sets of terminal blocks 2 that are matched and connected with terminal blocks 1 receive the three-phase live wires and the N-phase neutral wire, and transmit the power supply line to the meter.

[0014] Furthermore, the connecting device two includes multiple sets of insulating sleeves three fixed in the meter box, multiple sets of insulating sleeves four fixed in the frame, a live wire copper busbar one and a neutral wire copper busbar one fixed in the insulating sleeve three, a live wire copper busbar two and a neutral wire copper busbar two fixed in the insulating sleeve four, and copper posts two fixed on the live wire copper busbar one and the neutral wire copper busbar one, wherein the copper posts two are respectively inserted into the corresponding live wire copper busbar two and the neutral wire copper busbar two.

[0015] By adopting the above technical solution, after the frame is installed, each copper post 2 is inserted into the live wire copper busbar 2 and the neutral wire copper busbar 2 respectively, so that the live wire copper busbar 1 and the live wire copper busbar 2 are electrically connected, and the neutral wire copper busbar 1 and the neutral wire copper busbar 2 are electrically connected. The live wire and neutral wire output by the meter are connected to the live wire copper busbar 1 and the neutral wire copper busbar 1 respectively, and then connected to the outgoing switch through the connected live wire copper busbar 2 and the neutral wire copper busbar 2. The external cable of the outgoing switch is led out through the outgoing pipe to realize the connection with the user's end line.

[0016] Furthermore, the splicing device includes two upright plates fixed to the meter box, two upright plates fixed to the upper surfaces of the inlet box and the outlet box respectively, two main shafts rotatably connected to the upright plates, clamps fixed to both ends of the main shafts, and multiple positioning rods fixed to the surfaces of the inlet box and the outlet box respectively. The surface of the upright plates is provided with through holes for the clamps to pass through. Positioning holes for the positioning rods to be inserted are provided on both sides of the meter box. The splicing device also includes a control component for controlling the rotation of the two main shafts.

[0017] By adopting the above technical solution, during the splicing process, the positioning rods on the surfaces of the inlet box and outlet box are respectively inserted into the positioning holes on the meter box. Then, the clamp can pass through the perforation on the surface of the second upright plate. Subsequently, the control component controls the rotation of the two main shafts, which drive the clamp to rotate, causing the clamp to be misaligned with the perforation and abut against the surface of the second upright plate, thereby locking the outlet box and inlet box onto the meter box and completing the splicing operation.

[0018] Furthermore, the control assembly includes a worm gear fixedly sleeved on the main shaft, two hollow seats fixed on the upper surface of the meter box, a control rod rotatably connected to the hollow seats, and two worms fixed on the control rods and meshing with the worm gear.

[0019] By adopting the above technical solution, when controlling the spindle to rotate, the control rod and worm gear are rotated. The worm gear drives the corresponding worm wheel to rotate, and the worm wheel drives the spindle and chuck to rotate, so that the chuck and the hole are misaligned, thereby achieving locking control.

[0020] Furthermore, insulating partitions are installed between the incoming line box and the meter box, and between the outgoing line box and the meter box.

[0021] By adopting the above technical solution, the insulating partition can effectively isolate the incoming line box from the meter box, and the outgoing line box from the meter box.

[0022] Furthermore, the incoming line box, meter box, and outgoing line box are all equipped with cabinet doors that can be opened and closed independently. Each of the incoming line box, meter box, and outgoing line box is equipped with a protective device. The protective device includes multiple motors installed in the inner walls of the incoming line box, meter box, and outgoing line box, a disk body fixedly connected to the output end of the motor, and a protrusion fixed on the disk body. The cabinet door is provided with a limiting groove for the protrusion to be inserted.

[0023] By adopting the above technical solution, after the cabinet door is closed by the lock on the cabinet door, the motor drives the plate to rotate. The plate can drive the protrusion to rotate and get into the limit groove, which can effectively reduce the risk of the cabinet door being opened accidentally. When opening, the operator only needs to control the motor to drive the plate to rotate through the controller, so that the protrusion moves out of the limit groove, and the cabinet door can be unlocked and opened.

[0024] Furthermore, the lower surfaces of the incoming line box, meter box, and outgoing line box are all threaded with bolts, and grounding wires are fitted onto the bolts.

[0025] By adopting the above technical solution, by pre-installing the grounding wire on the outside of the bolt and then tightening the bolt to fix it at the bottom of the inlet box, meter box, and outlet box, the grounding wire can be reliably connected to the shell of the inlet box, meter box, and outlet box respectively, thus achieving grounding protection for each box.

[0026] In summary, the present invention has the following beneficial effects: 1. In this application, a three-chamber isolated modular design is adopted, which independently separates the incoming box, meter box, and outgoing box. The internal wiring of each box can be implemented independently, without the need for complex cable pulling and wiring work across boxes. Each module can be pre-installed and wired in the factory, and assembled and connected by splicing device. Connecting device one and connecting device two realize the electrical connection between the incoming box, outgoing box and meter box, without the need for complicated on-site wiring operations, which greatly shortens the assembly and wiring time and improves on-site construction and installation efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram illustrating the connection structure between the bolt and the inlet box, meter box, and outlet box in an embodiment of the present invention; Figure 3 This is a schematic diagram illustrating the connection structure between the incoming line switch and the incoming line box in an embodiment of the present invention; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram illustrating the connection structure between the frame and the cable outlet pipe in an embodiment of the present invention; Figure 6 This is a schematic diagram illustrating the connection structure between the vertical plate and the meter box in an embodiment of the present invention; Figure 7 This is a schematic diagram illustrating the connection structure between the knob lever and the chuck in an embodiment of the present invention; Figure 8 This is a schematic diagram illustrating the connection structure between the copper pillar and the terminal block in an embodiment of the present invention; Figure 9 This is a schematic diagram illustrating the connection structure between copper pillar two and live wire copper busbar one and neutral wire copper busbar one in an embodiment of the present invention; Figure 10 This is a schematic diagram illustrating the connection between the motor and the disc body in an embodiment of the present invention; Figure 11 This is a schematic diagram illustrating the connection structure between the limiting groove and the cabinet door in an embodiment of the present invention.

[0028] In the diagram: 1. Incoming box; 2. Meter box; 3. Outgoing box; 4. Incoming switch; 5. Meter; 6. Cabinet door; 7. Outgoing module; 71. Frame; 72. Outgoing conduit; 73. Outgoing switch; 74. Knob lever; 75. Chuck; 8. Connecting device one; 81. Insulating sleeve one; 82. Insulating sleeve two; 83. Terminal block one; 84. Terminal block two; 85. Copper post one; 9. Connecting device two; 91. Insulating sleeve three; 92. Insulating sleeve four; 93. Live wire copper busbar one; 94. Neutral wire copper busbar one; 95. Live wire copper busbar 2; 96. Neutral copper busbar 2; 97. Copper column 2; 10. Slot; 11. Splicing device; 111. Vertical plate 1; 112. Vertical plate 2; 113. Main shaft; 114. Clamp; 115. Worm gear; 116. Hollow seat; 117. Control rod; 118. Worm gear; 119. Positioning rod; 12. Protective device; 121. Motor; 122. Disc; 123. Protrusion; 13. Limiting groove; 14. Through hole; 15. Bolt; 16. Grounding wire; 17. Insulating partition; 18. Positioning hole; 19. Inlet pipe. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] like Figure 1-11 As shown in the figure, this application discloses a modular assembly structure for a three-compartment isolated electricity metering box, including an inlet box 1, a meter box 2, an outlet box 3, an inlet switch 4, metering meters 5, outlet modules 7, a first connecting device 8, a second connecting device 9, and an assembly device 11. The inlet box 1, meter box 2, and outlet box 3 are arranged sequentially in a horizontal direction. The inlet box 1 is equipped with an inlet switch 4. The meter box 2 is equipped with several sets of metering meters 5 using mounting brackets. The outlet box 3 is equipped with multiple sets of outlet modules 7. By dividing the electricity metering box into three isolated and independent box modules—incoming box 1, meter box 2, and outgoing box 3—the wiring process only requires completing the corresponding wiring operations within these three boxes during the incoming line wiring process. Subsequently, the incoming box 1, meter box 2, and outgoing box 3 are spliced ​​and installed using splicing device 11. Connection device 1 8 can establish an electrical connection between incoming box 1 and meter box 2, and connection device 2 9 can establish an electrical connection between meter box 2 and outgoing module 7. There is no need for complicated wiring operations. Each module can be pre-installed and wired in the factory, and only assembly and docking are required on site for it to be put into use, resulting in higher assembly and wiring efficiency.

[0031] The outgoing module 7 includes a frame 71, an outgoing conduit 72, and an outgoing switch 73. The frame 71 is inserted into the outgoing box 3. The outgoing conduit 72 is fixed to the surface of the frame 71, and multiple sets of outgoing switches 73 are provided. Multiple sets of outgoing switches 73 are installed inside the frame 71, and an ingoing conduit 19 is fixedly connected to the surface of the ingoing box 1. The frame 71 can be installed in the outgoing box 3 through a limiting unit, and then electrical conduction is achieved through a connecting device 2 9. The multiple sets of outgoing modules 7 in the outgoing box 3 can be added or removed arbitrarily according to user needs, achieving flexible configuration.

[0032] The limiting unit is used to limit the frame 71. The limiting unit includes a knob rod 74 and a chuck 75. The knob rod 74 is rotatably connected to one side of the frame 71. The chuck 75 is fixed to the knob rod 74 and is semi-circular. The surface of the cable outlet box 3 has a slot 10 for the chuck 75 to be inserted. When the frame 71 is inserted into the cable outlet box 3, rotating the knob rod 74 will cause the chuck 75 to rotate and be inserted into the slot 10, thereby limiting the frame 71 in the cable outlet box 3.

[0033] The limiting unit can be replaced with a latch lock. The latch lock is opened and closed by a matching key. The latch lock and the slot 10 work together to lock and limit the frame 71, effectively improving the overall anti-theft and anti-accidental disassembly security performance.

[0034] A connecting device 8 is installed on the inlet box 1 and the meter box 2 to achieve electrical connection between them. The connecting device 8 includes an insulating sleeve 81, an insulating sleeve 82, a terminal block 83, a terminal block 84, and a copper post 85. Multiple sets of insulating sleeves 81 are fixed in the inlet box 1. Multiple sets of insulating sleeves 82 are fixed in the meter box 2. Terminal blocks 83 and 84 are fixed in the insulating sleeves 81 and 82 respectively. The copper post 85 is fixed on the terminal block 83 and is inserted into the inner wall of the terminal block 84. After the incoming line box 1 and the meter box 2 are assembled, each copper post 85 is inserted into the corresponding terminal block 84, so that the terminal block 83 and the terminal block 84 can quickly form an electrical connection. Multiple sets of terminal blocks 83 are arranged in sections. One part is used to connect the three-phase live wires A, B, and C output from the incoming line switch 4, and the other part is used to connect the N-phase neutral wire. Multiple sets of terminal blocks 84 that are matched and connected with terminal blocks 83 receive the three-phase live wires and the N-phase neutral wire, and transmit the power supply line to the meter 5.

[0035] Connecting device 2 9 is installed on the meter box 2 and the outlet box 3 to achieve electrical connection between them. Connecting device 2 9 includes insulating sleeve 3 91, insulating sleeve 4 92, live wire copper busbar 1 93, neutral wire copper busbar 1 94, live wire copper busbar 2 95, neutral wire copper busbar 2 96, and copper post 2 97. Multiple sets of insulating sleeve 3 91 are fixed in the meter box 2. Multiple sets of insulating sleeve 4 92 are fixed in the frame 71. Live wire copper busbar 1 93 and neutral wire copper busbar 1 94 are fixed in insulating sleeve 3 91, and live wire copper busbar 2 95 and neutral wire copper busbar 2 96 are fixed in insulating sleeve 4 92. Copper post 2 97 is fixed on live wire copper busbar 1 93 and neutral wire copper busbar 1 94, and copper post 2 97 is plugged into the corresponding live wire copper busbar 2 95 and neutral wire copper busbar 2 96. After the frame 71 is installed, each copper post 2 97 is inserted into the live wire copper busbar 2 95 and the neutral wire copper busbar 2 96, so that the live wire copper busbar 1 93 and the live wire copper busbar 2 95 are electrically connected, and the neutral wire copper busbar 1 94 and the neutral wire copper busbar 2 96 are electrically connected. The live wire and neutral wire output from the meter 5 are connected to the live wire copper busbar 1 93 and the neutral wire copper busbar 1 94 respectively, and then connected to the outgoing switch 73 through the connected live wire copper busbar 2 95 and the neutral wire copper busbar 2 96. The external cable of the outgoing switch 73 is led out through the outgoing pipe 72 to realize the connection with the user end line.

[0036] The splicing device 11 is located on the outside of the meter box 2 and is used to assemble and fix it to the inlet box 1 and the outlet box 3 respectively. The splicing device 11 includes a first upright plate 111, a second upright plate 112, a main shaft 113, a clamp 114, positioning rods 119, and a control assembly. There are two first upright plates 111. The two first upright plates 111 are fixed to the meter box 2. There are two second upright plates 112. The two second upright plates 112 are fixed to the upper surfaces of the inlet box 1 and the outlet box 3 respectively. There are two main shafts 113. The two main shafts 113 are rotatably connected to the first upright plate 111, and the clamps 114 are fixed to both ends of the main shafts 113. There are multiple positioning rods 119, which are fixed to the surfaces of the inlet box 1 and the outlet box 3 respectively. The surface of the second upright plate 112 has through holes 14 for the clamps 114 to pass through, and both sides of the meter box 2 have positioning holes 18 for the positioning rods 119 to be inserted. During assembly, the positioning rods 119 on the surfaces of the inlet box 1 and the outlet box 3 are inserted into the positioning holes 18 on the meter box 2, respectively. Then, the clamp 114 can pass through the through hole 14 on the surface of the second upright plate 112. Subsequently, the two main shafts 113 are controlled to rotate by the control component. The main shafts 113 drive the clamp 114 to rotate, so that the clamp 114 is misaligned with the through hole 14 and abuts against the surface of the second upright plate 112, thereby locking the outlet box 3 and the inlet box 1 onto the meter box 2 and completing the assembly operation.

[0037] The control assembly controls the rotation of the two main shafts 113. The control assembly includes a worm gear 115, a hollow seat 116, a control rod 117, and a worm 118. The worm gear 115 is fixedly sleeved on the main shaft 113, and two hollow seats 116 are provided. The two hollow seats 116 are fixed to the upper surface of the meter box 2, and the control rod 117 is rotatably connected to the hollow seats 116. Two worms 118 are provided, fixed to the control rod 117, and mesh with the worm gear 115. When controlling the rotation of the main shaft 113, rotating the control rod 117 and the worm 118 causes the corresponding worm gear 115 to rotate. The worm gear 115 then drives the main shaft 113 and the chuck 114 to rotate, causing the chuck 114 to misalign with the through hole 14, thereby achieving locking control.

[0038] Insulating partitions 17 are installed between the incoming line box 1 and the meter box 2, and between the outgoing line box 3 and the meter box 2. The insulating partitions 17 can effectively isolate the incoming line box 1 and the meter box 2, and the outgoing line box 3 and the meter box 2.

[0039] Each of the inlet box 1, meter box 2, and outlet box 3 is equipped with an independently openable and closable cabinet door 6. Each of these boxes is also equipped with a protective device 12. The protective device 12 includes a motor 121, a panel 122, and a protrusion 123. Multiple motors 121 are provided. These motors 121 are respectively installed in the inner walls of the inlet box 1, meter box 2, and outlet box 3. The panel 122 is fixedly connected to the output end of the motor 121. The protrusion 123 is fixed to the panel 122, and a limiting groove 13 is provided on the cabinet door 6 for the protrusion 123 to be inserted. After the cabinet door 6 is closed by the lock on the cabinet door 6, the motor 121 drives the plate 122 to rotate. The plate 122 can drive the protrusion 123 to rotate and get into the limiting groove 13, which can effectively reduce the risk of the cabinet door 6 being opened accidentally. When opening, the operator only needs to control the motor 121 to drive the plate 122 to rotate through the controller, so that the protrusion 123 can be moved out of the limiting groove 13, and the cabinet door 6 can be unlocked and opened.

[0040] The lower surfaces of the inlet box 1, meter box 2, and outlet box 3 are all threaded with bolts 15, and grounding wires 16 are fitted onto the bolts 15. By pre-fitting the grounding wires 16 onto the outside of the bolts 15 and then tightening the bolts 15 to fix them to the bottom of the inlet box 1, meter box 2, and outlet box 3, the grounding wires 16 can be reliably connected to the shells of the inlet box 1, meter box 2, and outlet box 3, respectively, thus achieving grounding protection for each box.

[0041] The modular assembly structure of a three-chamber isolated power metering box in this embodiment operates as follows: During assembly, the positioning rods 119 on the surfaces of the inlet box 1 and the outlet box 3 are respectively inserted into the positioning holes 18 on the meter box 2. Simultaneously, insulating partitions 17 are installed between them. Then, the clamp 114 can pass through the through hole 14 on the surface of the vertical plate 112. By rotating the control rod 117 and the worm gear 118, the worm gear 118 drives the corresponding worm wheel 115 to rotate. The worm wheel 115 drives the main shaft 113 and the clamp 114 to rotate, causing the clamp 114 to misalign with the through hole 14, allowing the clamp 114 to... The surfaces of the upright plate 112 abut against each other, locking the outlet box 3 and the inlet box 1 onto the meter box 2, completing the splicing operation. Then, according to the installation requirements, the corresponding number of frames 71 are inserted into the outlet box 3. After the frame 71 is inserted into the outlet box 3, the knob rod 74 is rotated. The knob rod 74 can drive the chuck 75 to rotate and engage in the slot 10, thereby restricting the frame 71 in the outlet box 3. In addition, the limiting unit can be replaced with a lock tongue lock. The lock tongue lock is opened and closed by the matching key. The lock tongue lock and the slot 10 work together to lock and limit the frame 71, effectively improving the overall anti-theft and anti-misoperation security performance. After the incoming line box 1 and the meter box 2 are assembled, each copper post 85 is inserted into the corresponding terminal block 84, so that terminal block 83 and terminal block 84 quickly form electrical connection; multiple sets of terminal blocks 83 are arranged in sections, one part is used to connect to the three-phase live wires A, B, and C output from the incoming line switch 4, and the other part is used to connect to the N-phase neutral wire. The multiple sets of terminal blocks 84 that are matched and connected to terminal blocks 83 receive the three-phase live wires and the N-phase neutral wire, and transmit the power supply line to the meter 5. After the frame 71 is installed... Each copper post 2 97 is inserted into the live wire copper busbar 2 95 and the neutral wire copper busbar 2 96 respectively, so that the live wire copper busbar 1 93 and the live wire copper busbar 2 95 are electrically connected, and the neutral wire copper busbar 1 94 and the neutral wire copper busbar 2 96 are electrically connected. The live wire and neutral wire output from the meter 5 are connected to the live wire copper busbar 1 93 and the neutral wire copper busbar 1 94 respectively, and then connected to the outgoing switch 73 through the connected live wire copper busbar 2 95 and the neutral wire copper busbar 2 96. The external cable of the outgoing switch 73 is led out through the outgoing pipe 72 to realize the connection with the user end line.

[0042] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A modular assembly structure for a three-chamber isolated power metering box, characterized in that: It includes an inlet box (1), a meter box (2), and an outlet box (3) arranged in a horizontal direction; the inlet box (1) is equipped with an inlet switch (4), the meter box (2) is equipped with several sets of metering meters (5) with the help of a mounting bracket, and the outlet box (3) is equipped with multiple sets of outlet modules (7); the inlet box (1) and the meter box (2) are provided with a first connection device (8) to realize electrical conduction between the two, and the meter box (2) and the outlet box (3) are provided with a second connection device (9) to realize electrical conduction between the two; the meter box (2) is provided with a splicing device (11) on the outside, which is used to assemble and fix it with the inlet box (1) and the outlet box (3) respectively.

2. The modular assembly structure of a three-chamber isolated power metering box according to claim 1, characterized in that: The outgoing module (7) includes a frame (71) inserted into the outgoing box (3), an outgoing pipe (72) fixed on the surface of the frame (71), and multiple sets of outgoing switches (73) installed in the frame (71). An ingoing pipe (19) is fixedly connected to the surface of the incoming box (1). The outgoing module (7) also includes a limiting unit for limiting the frame (71).

3. The modular assembly structure of a three-chamber isolated power metering box according to claim 2, characterized in that: The limiting unit includes a knob rod (74) rotatably connected to one side of the frame (71) and a chuck (75) fixed on the knob rod (74) and in a semi-circular shape. The surface of the cable box (3) is provided with a slot (10) for the chuck (75) to be inserted.

4. The modular assembly structure of a three-chamber isolated power metering box according to claim 1, characterized in that: The connecting device 1 (8) includes multiple sets of insulating sleeve 1 (81) fixed in the inlet box (1), multiple sets of insulating sleeve 2 (82) fixed in the meter box (2), terminal block 1 (83) and terminal block 2 (84) respectively fixed in insulating sleeve 1 (81) and insulating sleeve 2 (82), and copper post 1 (85) fixed on terminal block 1 (83). The copper post 1 (85) is inserted into the inner wall of terminal block 2 (84).

5. The modular assembly structure of a three-chamber isolated power metering box according to claim 2, characterized in that: The second connecting device (9) includes multiple sets of insulating sleeves three (91) fixed in the meter box (2), multiple sets of insulating sleeves four (92) fixed in the frame (71), a live wire copper busbar one (93) and a neutral wire copper busbar one (94) fixed in the insulating sleeve three (91), a live wire copper busbar two (95) and a neutral wire copper busbar two (96) fixed in the insulating sleeve four (92), and a copper post two (97) fixed on the live wire copper busbar one (93) and the neutral wire copper busbar one (94). The copper post two (97) is inserted into the corresponding live wire copper busbar two (95) and neutral wire copper busbar two (96).

6. The modular assembly structure of a three-chamber isolated power metering box according to claim 1, characterized in that: The splicing device (11) includes two upright plates (111) fixed on the meter box (2), two upright plates (112) fixed on the upper surfaces of the inlet box (1) and the outlet box (3) respectively, two main shafts (113) rotatably connected to the upright plates (111), clamps (114) fixed at both ends of the main shafts (113), and multiple positioning rods (119) fixed on the surfaces of the inlet box (1) and the outlet box (3) respectively. The surface of the upright plate (112) is provided with through holes (14) for the clamps (114) to pass through. Both sides of the meter box (2) are provided with positioning holes (18) for the positioning rods (119) to be inserted. The splicing device (11) also includes a control component for controlling the rotation of the two main shafts (113).

7. The modular assembly structure of a three-chamber isolated power metering box according to claim 6, characterized in that: The control assembly includes a worm gear (115) fixedly sleeved on the main shaft (113), two hollow seats (116) fixed on the upper surface of the meter box (2), a control rod (117) rotatably connected to the hollow seat (116), and two worms (118) fixed on the control rod (117) and meshing with the worm gear (115).

8. The modular assembly structure of a three-chamber isolated power metering box according to claim 1, characterized in that: Insulating partitions (17) are provided between the incoming line box (1) and the meter box (2), and between the outgoing line box (3) and the meter box (2).

9. The modular assembly structure of a three-chamber isolated power metering box according to claim 1, characterized in that: The incoming line box (1), the meter box (2) and the outgoing line box (3) are all equipped with cabinet doors (6) that can be opened and closed independently. The incoming line box (1), the meter box (2) and the outgoing line box (3) are all equipped with protective devices (12). The protective devices (12) include multiple motors (121) installed in the inner walls of the incoming line box (1), the meter box (2) and the outgoing line box (3), a disk (122) fixedly connected to the output end of the motor (121), and a protrusion (123) fixed on the disk (122). The cabinet door (6) is provided with a limiting groove (13) for the protrusion (123) to be inserted.

10. The modular assembly structure of a three-chamber isolated power metering box according to claim 1, characterized in that: The lower surfaces of the incoming box (1), the meter box (2) and the outgoing box (3) are all threaded with bolts (15), and grounding wires (16) are sleeved on the bolts (15).

Images