Multi-structure self-adaptive electric energy meter non-power-cut replacement device and use method

Abstract

The invention relates to a multi-structure self-adaptive electric energy meter non-power-cut replacement device and a use method. The multi-structure self-adaptive electric energy meter non-power-cut replacement device comprises a control host connected with a single-phase electric meter; the wire inlet side and the wire outlet side of the single-phase electric meter are respectively connected with switches of the same type or different types, the switch of the wire inlet side is connected with a power supply side socket of the control host through a wire inlet electricity taking module, the switch of the wire outlet side is connected with a user side socket of the control host through a wire outlet electricity taking module, and the control host and the single-phase electric meter form a parallel bypass; the lower part of the single-phase ammeter is provided with a connection terminal area, the connection terminal area is provided with four ammeter buses which are arranged at intervals, and each ammeter bus is locked with the single-phase ammeter through a wire locking screw. The connection terminal area is detachably connected with a short circuit module, the short circuit module is connected with the control host and the locking wire screw, the adjacent ammeter buses are locked or loosened by adjusting the locking wire screw, the single-phase ammeter is seamlessly switched from an original circuit to a parallel bypass, and meanwhile the passing electric quantity is continuously metered.

Description

Technical Field

[0001] This invention relates to a multi-structure adaptive energy meter uninterrupted power replacement device and its usage method, belonging to the field of power system maintenance technology. Background Technology

[0002] Traditionally, replacing low-voltage electricity meters requires a power outage. After the meter is removed, the wiring can easily become loose or detached, causing a phase-to-neutral short circuit or a phase-to-ground short circuit. Existing uninterrupted meter replacement solutions require a pre-installed replacement module base in the meter box. The first replacement is performed by cutting off the power and short-circuiting the circuit. During the replacement process, the electricity consumption cannot be measured, resulting in power loss and affecting the user's electricity usage.

[0003] Chinese Patent No. CN116679101A discloses a novel portable uninterrupted power meter replacement device and method, including a control host. The control host draws power from the meter box's inlet and outlet switches via wire clamps to form a parallel bypass with the meter to be replaced. The control host also incorporates a metering function to measure the excess electricity in the parallel bypass during meter replacement, and then transfers this excess electricity to the new meter. However, drawing power via wire clamps poses certain safety hazards, and the meter replacement process requires a certain amount of time. Furthermore, the subsequent transfer of excess electricity to the new meter makes the operation quite cumbersome. Summary of the Invention

[0004] To overcome the above problems, the present invention provides a multi-structure adaptive energy meter uninterrupted power replacement device and method, which can seamlessly switch the old energy meter to the parallel bypass circuit while continuing to measure excess electricity, and can monitor the operating status of the parallel bypass circuit and quickly isolate protection faults.

[0005] The technical solution of the present invention is as follows: A multi-structure adaptive energy meter uninterrupted power switching device includes a control host connected to a single-phase energy meter. The single-phase energy meter has switches of the same or different types connected to its inlet and outlet sides. The inlet switch is connected to the power supply side socket of the control host via an inlet power module, and the outlet switch is connected to the user side socket of the control host via an outlet power module. The control host and the single-phase energy meter form a parallel bypass. The lower part of the single-phase energy meter has a connection terminal area with four spaced-apart meter busbars. Each meter busbar is locked to the single-phase energy meter by a locking screw. A short-circuit module is detachably connected to the connection terminal area. The short-circuit module is connected to the control host and the locking screws. By adjusting the locking screws to tighten or loosen adjacent meter busbars, the single-phase energy meter can be seamlessly switched from its original circuit to the parallel bypass while continuing to measure the passing electricity.

[0006] Furthermore, both the power supply side socket and the user side socket are two-core sockets, and a two-core plug is inserted into the two-core socket; both the incoming power supply module and the outgoing power supply module include a connected electrical conductor and a connector. When the connector is connected to an adjacent switch, one end of the electrical conductor is connected to the switch to conduct electricity, and the other end is connected to the lead wire of the adjacent two-core plug.

[0007] Furthermore, the switch is a busbar switch; the electrical conductor includes a conductive block connected to the conductive piece of the L line of the busbar switch, and another conductive block connected to the conductive piece of the N line of the busbar switch; each conductive block has a conductive baffle fixedly connected to its bottom, and a clamping opening for accommodating the conductive piece is formed between the conductive baffle and the conductive block; the connector is a retractable conductive core slidably connected to the conductive block, one end of the retractable conductive core cooperates with the conductive baffle to clamp the adjacent conductive piece, and the other end is connected to the adjacent two-core plug lead; the conductive block, the retractable conductive core, and the conductive baffle are provided with an insulating shell covering their exposed parts.

[0008] Furthermore, the switch is an open circuit breaker; the electrical conductor includes two open circuit breaker conductive pins installed inside the open circuit breaker housing, the tops of the two open circuit breaker conductive pins are respectively connected to the adjacent two-core plugs, and the bottoms of the two open circuit breaker conductive pins extend outward through the open circuit breaker housing; the connector is a side plate fixedly connected to both sides of the open circuit breaker housing, and the other ends of the two side plates extend towards each other to form ear plates; the upper parts of the two side plates are connected by a connecting plate; when the open circuit breaker is placed between the two side plates and tightly fitted thereto, the button of the open circuit breaker protrudes from between the connecting plate and the open circuit breaker housing, and the bottoms of the two open circuit breaker conductive pins abut against the wiring screws of the L line and N line of the open circuit breaker, respectively.

[0009] Furthermore, the switch is a residual current device (RCD); the electrical conductor includes two RCD conductive pins installed inside the RCD housing, the tops of the two RCD conductive pins are respectively connected to the adjacent two-core plugs, and the bottoms of the two RCD conductive pins extend outward through the RCD housing; the connector is an L-shaped plate, the free end of the long plate of the L-shaped plate is fixedly connected to the RCD housing, the short plate of the L-shaped plate is placed on the same side as the RCD housing, and a space for accommodating the RCD is formed between the short plate and the RCD housing; the top and bottom of the RCD are respectively provided with slots, and the RCD housing and the short plate are respectively equipped with buckles that engage with the slots; when the RCD is connected to the L-shaped plate, the bottoms of the two RCD conductive pins abut against the wiring screws of the L-line and N-line of the RCD.

[0010] Furthermore, the control host is also equipped with a four-pin socket, which is connected in series between the power supply side socket and the user side socket, and a four-pin plug is inserted into the four-pin socket; the shorting module includes a shorting box, in which four electrical conductors are arranged at intervals, and the four electrical conductors correspond to the four meter busbars respectively; each electrical conductor includes two hollow conductive tubes arranged in the same row, and two shorting conductive pins placed on both sides of the hollow conductive tubes, and each hollow conductive tube and shorting conductive pin is vertically installed in the shorting box; the top of the hollow conductive tube and shorting conductive pin in each electrical conductor is respectively connected to the four-pin plug by lead wires, and the bottom of the hollow conductive tube and shorting conductive pin extends outward through the shorting box.

[0011] Furthermore, the locking screws placed on the same meter busbar are connected by meter conductive plates. When the shorting box is detachably connected to the connection terminal area, the hollow conductive tube in each of the second conductors is suspended above the adjacent locking screw, and the bottom of the shorting conductive pin abuts against the adjacent meter conductive plate. By tightening or loosening the locking screws on the adjacent meter busbars, the distance between the locking screws and the adjacent hollow conductive tubes is adjusted. When the locking screws are separated from the hollow conductive tubes, the single-phase meter is connected to the original circuit. When the locking screws contact the hollow conductive tubes, the single-phase meter is switched to parallel bypass.

[0012] Furthermore, the four busbars of the meter are limited by clamps; the clamps include a clamp outer shell and an inner shell that can move along its length. The bottoms of both the clamp outer shell and the inner shell are recessed to form four spaced clamping grooves. The clamping grooves on the clamp outer shell and the inner shell are staggered. By moving the inner shell, the overlap area of ​​the clamping grooves on the clamp outer shell and the inner shell is adjusted to clamp or release the busbars of the meter.

[0013] Furthermore, the control host is also equipped with a power supply side switch, a user side switch, and a parallel bypass monitoring unit; the power supply side switch is connected in series between the power supply side socket and the four-pin socket; the parallel bypass monitoring unit is connected in series between the four-pin socket and the user side socket; the user side switch is connected in series between the four-pin socket and the parallel bypass monitoring unit; the lead wire of the parallel bypass monitoring unit is connected to the shorting box.

[0014] Furthermore, a method for using a multi-structure adaptive energy meter uninterrupted power replacement device specifically includes the following steps: S1, select and connect an incoming power module that matches the switch type on the incoming side of the single-phase meter, and select and connect an outgoing power module that matches the switch type on the outgoing side of the single-phase meter. S2, the incoming power module is plugged into the power supply side socket, the outgoing power module is plugged into the user side socket, and the control host and the single-phase meter form a parallel bypass; S3, the four busbars of the meter are clamped by the clamp to limit their position; S4, install the shorting box on the single-phase meter, the four electrical conductors II correspond to the positions of the four meter busbars respectively, the hollow conductive tube in each electrical conductor II is suspended above the adjacent locking screw, the bottom of the shorting conductive pin abuts against the adjacent meter conductive plate; plug the four-pin plug into the four-pin socket; S5, after connecting the lead wire of the parallel bypass monitoring unit to the short-circuit box, turn on the power supply side switch and the user side switch in sequence to allow the parallel bypass current to flow, and the parallel bypass monitoring unit monitors the temperature and current changes of the parallel bypass. S6, loosen the locking screws on each of the meter busbars in sequence, so that each locking screw drives the meter conductive piece connected to it to move upward until each locking screw presses against the hollow conductive tube next to it, separating the single-phase meter from each meter busbar, the original circuit is cut off, and at the same time the single-phase meter seamlessly switches to the parallel bypass to continue measuring the passing electricity. S7 connects the four meter busbars to the new meter, connects the original circuit, and simultaneously closes the power supply side switch and the user side switch, cuts off the parallel bypass, and seamlessly switches to the new meter to continue metering the circuit. S8, remove the single-phase electricity meter, incoming power module, outgoing power module and control host to complete the meter replacement without power interruption.

[0015] The present invention has the following beneficial effects: 1. This invention connects the incoming power module to the switch on the incoming side of the single-phase meter, and the outgoing power module to the switch on the outgoing side of the single-phase meter, so that the control host connected to the incoming and outgoing power modules forms a parallel bypass with the single-phase meter; by installing a short-circuit module on the single-phase meter, the control host is connected to the short-circuit module, and by adjusting the single-phase meter to loosen the locking screw until it contacts the hollow conductive tube in the short-circuit module, the single-phase meter can be seamlessly switched between the original circuit and the parallel bypass, and the single-phase meter switched to the parallel bypass can continue to measure the passing electricity.

[0016] 2. After the meter is replaced, the current can be seamlessly switched back to the original circuit by tightening the locking screw to separate it from the adjacent hollow conductive tube. The new meter can then seamlessly connect to measure the electricity passing through the circuit. The entire meter replacement process is seamless for the user and does not affect the user's electricity consumption. The electricity consumption on the user's side can be directly calculated by superposition.

[0017] 3. This invention features a power supply module compatible with various types of switches. The power supply module can be quickly installed and removed from adjacent switches via connectors, enabling rapid establishment or removal of parallel bypasses and saving meter replacement time. Simultaneously, by connecting a parallel bypass detection unit in series with the control host, the operating status of the parallel bypass is sensed, and in the event of a fault, it can provide reminders through various indicator lights, allowing for quick location of the fault point. This also facilitates operators in monitoring the parallel bypass at all times during meter replacement, reducing safety hazards. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram showing the connection between the busbar switch and the two-core plug.

[0020] Figure 3 This is a schematic diagram showing the connection relationship between the conductive block and the conductive core.

[0021] Figure 4 This is a cross-sectional view showing the connection relationship between the conductive block and the conductive core.

[0022] Figure 5 This is a schematic diagram of the conductive core.

[0023] Figure 6 This is a schematic diagram showing the connection between the circuit breaker and the two-core plug.

[0024] Figure 7 This is a schematic diagram showing the connection between the open circuit box and the side panel.

[0025] Figure 8 This is a diagram of the internal structure of the open-box housing.

[0026] Figure 9 This is the rear view of the open box.

[0027] Figure 10 This is a schematic diagram showing the connection between the residual current circuit breaker and the two-core plug.

[0028] Figure 11 This is a schematic diagram showing the connection between the residual current circuit breaker and the L-shaped plate.

[0029] Figure 12 This is a diagram of the internal structure of the leakage protection box.

[0030] Figure 13 This is a schematic diagram of the overall structure of the shorting module.

[0031] Figure 14 This is a diagram of the internal structure of the shorting module.

[0032] Figure 15 This is a bottom view of the shorting module.

[0033] Figure 16 This is a schematic diagram showing the connection relationship between a single-phase electricity meter and its busbar.

[0034] Figure 17 This is a schematic diagram of the control host.

[0035] Figure 18 This is a diagram of the internal structure of the control host.

[0036] Figure 19 This is a schematic diagram of the wire clamp structure.

[0037] Figure 20 This is a schematic diagram of the structure with the inner shell sandwiched between the shells.

[0038] Figure 21 This is a schematic diagram of the outer shell structure.

[0039] The reference numerals in the figure are as follows: 1. Single-phase electricity meter; 11. Connection terminal area; 12. Hook; 2. Control host; 21. Power supply side socket; 22. User side socket; 23. Two-core plug; 24. Four-core socket; 25. Four-core plug; 26. Power supply side switch; 261. Power supply side indicator light; 27. User side switch; 271. User side indicator light; 28. Parallel bypass monitoring unit; 29. ​​Control circuit board; 291. Temperature measuring socket; 292. Detection indicator light; 293. LCD screen; 294. Network interface; 295. Function key; 3. Electricity meter busbar; 31. Locking screw; 4. Shorting module; 41. Shorting box; 411. Temperature measuring interface; 412. Thermistor; 42. Electrical conductor two; 421. Hollow conductive tube; 422. Shorting conductive pin; 43. Hook plate; 431. Hook foot; 432. Wing plate; 44. Shorting spring; 45. 5. Busbar switch; 51. Conductive block; 511. Core cavity; 52. Conductive baffle; 53. Clamp; 54. Telescopic conductive core; 541. Locking block; 542. Spring; 543. Pulling mechanism; 544. Conductive post; 545. Contact section; 55. Insulating shell; 6. Circuit breaker; 61. Circuit breaker housing; 62. Circuit breaker conductive pin; 63. Side plate; 64. Ear plate; 65. Connecting plate; 6 6. Circuit breaker indicator light; 7. Residual current circuit breaker (RCCB); 71. RCCB housing; 72. RCCB conductive pin; 73. L-shaped plate; 731. Long plate; 732. Short plate; 74. Slot; 75. Buckle; 76. Pull rod; 77. RCCB indicator light; 8. Wire clamp; 81. Outer shell clamp; 82. Inner shell clamp; 83. Wire clamp groove; 84. Wire clamp spring; 85. Press plate; 86. Opening; 87. Strip hole; 88. Pin. Detailed Implementation

[0040] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0041] The upstream of a single-phase meter 1 is connected to the switch on its inlet side, and the downstream is connected to the switch on its outlet side. Common switches on the inlet and outlet sides of a single-phase meter 1 include three types: busbar switch 5, residual current circuit breaker 7, and circuit breaker 6. The switches on the inlet and outlet sides of a single-phase meter 1 can be selected to be of the same type or different types.

[0042] See Figure 1 A multi-structure adaptive energy meter uninterrupted power replacement device includes a control host 2 connected to a single-phase energy meter 1, an incoming power supply module connected to a switch on the incoming power side, and an outgoing power supply module connected to a switch on the outgoing power side. The incoming power supply module is connected to a power supply side socket 21 on the control host 2, and the outgoing power supply module is connected to a user side socket 22 on the control host 2, forming a parallel bypass between the control host 2 and the single-phase energy meter 1. Both the power supply side socket 21 and the user side socket 22 are two-pin sockets, with a two-pin plug 23 inserted into each.

[0043] Furthermore, both the incoming power supply module and the outgoing power supply module include a connected electrical conductor and a connector. When the connector is connected to an adjacent switch, one end of the electrical conductor is connected to the switch for conductivity, and the other end of the electrical conductor is connected to the lead wire of the adjacent two-core plug 23.

[0044] See Figures 2 to 5 When the switch is busbar switch 5, the electrical conductor consists of two conductive blocks 51. One conductive block 51 is connected to the conductive piece of the L line of busbar switch 5, and the other conductive block 51 is connected to the conductive piece of the N line of busbar switch 5. Each conductive block 51 has a conductive baffle 52 installed at its bottom, and a clamp 53 for accommodating the conductive piece is formed between the conductive baffle 52 and the conductive block 51. The connector is a retractable conductive core 54 that is slidably connected inside the conductive block 51. One end of the retractable conductive core 54 cooperates with the conductive baffle 52 and the retractable conductive core to clamp or release the adjacent conductive piece, and the other end of the retractable conductive core 54 is connected to the lead wire of the adjacent two-core plug 23.

[0045] To enable the expansion and contraction of the conductive core, preferably, each conductive block 51 has a core cavity 511 extending vertically along its axis. The core cavity 511 has a structure that is small at both ends and large in the middle. A sliding conductive core is installed inside the core cavity 511. The conductive core extends radially outward to form two symmetrical locking blocks 541. A spring 542 is provided above the locking block 541 and sleeved on the outer periphery of the conductive core. The other end of the spring 542 abuts against the inner wall of the top of the core cavity 511. Two locking grooves 74 are symmetrically arranged at the lower end of the core cavity 511 to cooperate with the locking blocks 541.

[0046] The top of the conductive core extends upward to the outside of the conductive block 51 to form a pull means 543. A conductive post 544 is threadedly connected to the outer periphery of the pull means 543 to increase the conductive area and maintain circuit stability. The bottom of the conductive core extends downward to the outside of the conductive block 51 to form a contact segment 545, which abuts against the conductive baffle 52. The free ends of the pull means 543 on the two conductive cores are respectively connected to the adjacent two-core plug 23.

[0047] An insulating shell 55 is provided to cover the exposed parts of the conductive block 51 and the pull means 543.

[0048] When the conductive piece is not clamped, the locking block 541 is placed in the slot 74, and the contact section 545 extends out of the conductive block 51 and abuts against the conductive baffle 52. When the conductive piece is clamped, the conductive core is pulled up and rotated by the pulling means 543, so that the locking block 541 is separated from the slot 74 and misaligned, and the contact section 545 is retracted into the core cavity 511, which facilitates the quick insertion of the adjacent conductive piece into the clamping slot 53. Then, the conductive core is rotated by the pulling means 543, and the locking block 541 is clamped into the slot 74 again, and the contact section 545 extends out to cooperate with the conductive baffle 52 to clamp the conductive piece and thus conduct electricity.

[0049] Preferably, the conductive baffle 52 has an L-shaped structure, with one vertical part fixedly connected to the bottom of the conductive block 51, and the other vertical part forming a clamp 53 with the bottom of the conductive block 51. The fixed connection method is to integrally form it with the conductive block 51.

[0050] See Figures 6 to 9 When the switch is a circuit breaker 6, the first conductor is two circuit breaker conductive pins 62, which are vertically installed inside the circuit breaker housing 61. The bottom of the two conductive pins extends outward through the circuit breaker housing 61, and the top of the two circuit breaker conductive pins 62 are respectively connected to adjacent two-core plugs 23. The connecting parts that cooperate with the circuit breaker 6 are side plates 63 fixedly connected to both sides of the circuit breaker housing 61. The other ends of the two side plates 63 extend towards each other to form ear plates 64. The upper parts of the two side plates 63 are connected by a connecting plate 65.

[0051] When the circuit breaker 6 is placed between the two side plates 63 and tightly fitted with the side plates 63, the button of the circuit breaker 6 protrudes from between the connecting plate 65 and the circuit breaker box 61. At this time, the bottom of the two circuit breaker conductive pins 62 respectively abuts against the wiring screws of the L line and N line of the circuit breaker 6, thereby conducting electricity. When separating the circuit breaker 6 from the connecting piece, insert a screwdriver between the side plate 63 and the circuit breaker 6 to pry out the circuit breaker 6.

[0052] The circuit breaker box 61 is also equipped with a circuit breaker indicator light 66. The circuit breaker indicator light 66 is set out of the circuit breaker box 61 and is connected to the pins of the two circuit breaker conductive pins 62 respectively to monitor the power supply.

[0053] See Figures 10 to 12 When the switch is a residual current circuit breaker 7, the first conductor is two residual current conductive pins 72, which are vertically installed inside the residual current circuit breaker housing 71. The bottom of the two residual current conductive pins 72 extends outward through the residual current circuit breaker housing 71, and the top of the two residual current conductive pins 72 are respectively connected to adjacent two-core plugs 23. The connecting part that cooperates with the residual current circuit breaker 7 is an L-shaped plate 73. The free end of the long plate 731 of the L-shaped plate 73 is fixedly connected to the residual current circuit breaker housing 71, and the short plate 732 of the L-shaped plate 73 is placed on the same side as the insulating box. The space between the short plate 732 and the insulating box is formed to accommodate the residual current circuit breaker 7.

[0054] The top and bottom of the leakage protection switch 7 are respectively provided with slots 74; both sides of the leakage protection box 71 and the short plate 732 are provided with buckles 75 that engage with the slots 74. The buckles 75 on the leakage protection box 71 are connected by a pull rod 76. When the buckles 75 engage with the adjacent slots 74, the bottoms of the two leakage protection conductive pins 72 respectively abut against the wiring screws of the L line and N line of the leakage protection switch 7. When the leakage protection switch 7 is separated from the connector, the pull rod 76 is pulled to separate the connected buckles 75 from the slots 74, and the connector can be removed.

[0055] The leakage protection box 71 is also equipped with a leakage protection indicator light 77. The leakage protection indicator light 77 is set out of the leakage protection box 71 and is connected to the pins of the two leakage protection conductive pins 72 respectively to monitor the power supply.

[0056] Furthermore, the control host 2 is connected to the single-phase meter 1 through the short-circuit module 4. When changing the meter without interrupting power, the short-circuit module 4 is installed on the single-phase meter 1, and the single-phase meter 1 is seamlessly switched from the original circuit to the parallel circuit through the short-circuit module 4.

[0057] See Figures 13 to 18 The control host 2 is equipped with a four-pin socket 24, which is connected in series between the power supply side socket 21 and the user side socket 22. A four-pin plug 25 is inserted into the four-pin socket 24. The short-circuit module 4 includes a short-circuit box 41 that is detachably connected to the single-phase meter 1. Four electrical conductors 42 are installed at intervals inside the short-circuit box 41. One end of each of the four electrical conductors 42 is connected to the four-pin plug 25, and the other end of each of the four electrical conductors 42 is connected to the connection terminal area 11 of the single-phase meter 1 to draw power.

[0058] Each conductor 42 includes two hollow conductive tubes 421 arranged in the same row, and shorting conductive pins 422 arranged on both sides of each hollow conductive tube 421. Each hollow conductive tube 421 and shorting conductive pin 422 is vertically installed in the shorting box 41. The bottom of each hollow conductive tube 421 and shorting conductive pin 422 extends outward vertically through the shorting box 41. The top of each hollow conductive tube 421 and shorting conductive pin 422 in each conductor 42 is connected to a four-core plug 25 by lead wires.

[0059] The connection terminal area 11 is provided with four spaced-apart meter busbars 3, namely meter L inlet, meter L outlet, meter N inlet, and meter N outlet. Each meter busbar 3 is locked to the single-phase meter 1 by two locking screws 31 arranged in the same row. The two locking screws 31 arranged in the same row are connected by the meter conductive plate.

[0060] When the shorting box 41 is installed in the connection terminal area 11, the four conductors 2 correspond to the positions of the four meter busbars 3 respectively. The hollow conductive tube 421 in each conductor 2 is suspended above the adjacent locking screw 31. The bottom of each shorting conductive pin 422 abuts against the adjacent meter conductive plate. The single-phase meter 1 is connected to the original circuit.

[0061] By loosening each locking screw 31, the connected meter conductive plate moves upward, and each locking screw 31 loosens the adjacent meter bus 3 and moves upward to press against the adjacent hollow conductive tube 421. This allows the single-phase meter 1 to be seamlessly switched from the original circuit to the parallel bypass and continue to measure the current passing through, so that the user side is unaware of the meter replacement process.

[0062] To enable a detachable connection between the shorting box 41 and the single-phase meter 1, hook grooves 12 are provided on both sides of the connection terminal area 11. Hook plates 43 are hinged to both sides of the shorting box 41 via a rotating shaft. The hook plates 43 are set perpendicular to the top cover of the shorting box 41. The shorting box 41 is installed on the single-phase meter 1 by the snap-fit ​​cooperation between the hook plates 43 and the hook grooves 12.

[0063] Preferably, a shorting spring 44 is provided above the rotating shaft. One end of the shorting spring 44 is fixedly connected to the shorting box 41, and the other end of the shorting spring 44 is fixedly connected to the hook plate 43. The bottom of the hook plate 43 is provided with a hook foot 431. The lower part of the hook plate 43 extends to both sides to form a wing plate 432. The shorting spring 44 is provided with a support plate 45 extending towards the hook foot 431 on both sides. The lower part of the hook plate 43 is placed between the two support plates 45, and the two wing plates 432 cooperate with the adjacent support plates 45 to limit the position of the hook plate 43.

[0064] Press the hook plate 43, and the hook foot 431 will be inserted into the adjacent hook groove 12. Release the hook plate 43, and under the elastic force of the short-circuit spring 44, the hook foot 431 will be pressed against the adjacent hook groove 12. At the same time, through the cooperation between the wing plate 432 and the support plate 45, the short-circuit module 4 will be stably connected to the single-phase meter 1.

[0065] To enhance the stability of the connection between the shorting module 4 and the single-phase meter 1, the shorting module 4 and the single-phase meter 1 are fastened together by bolts.

[0066] Furthermore, the installation methods for the residual current device (RCD) conductive pin 72 and the RCD housing 71, the circuit breaker conductive pin 62 and the circuit breaker housing 61, the hollow conductive tube 421 and the shorting box 41, and the shorting conductive pin 422 and the shorting box 41 can be fixed by adhesive bonding, by fitting, or by bolt fastening. The conductive block 51, conductive core, conductive baffle 52, RCD conductive pin 72, circuit breaker conductive pin 62, hollow conductive tube 421, and shorting conductive pin 422 are all conductive metal bodies; preferably, the metal body is a copper structure.

[0067] Furthermore, the control host 2 is also equipped with a parallel bypass monitoring unit 28. The parallel bypass monitoring unit 28 includes a control circuit board 29 connected in series between the four-pin socket 24 and the user-side socket 22, a temperature measuring socket 291, a detection indicator light 292, an LCD screen 293, a network interface 294, and several function keys 295, all electrically connected to the control circuit board 29. The temperature measuring socket 291 is connected to the short-circuit box 41 to detect its operating status, and the detection indicator light 292 detects the operating status of the parallel bypass. The threshold parameters of the parallel bypass can be adjusted by the function keys 295 to give the detection indicator light 292 a flashing signal. The LCD screen 293 displays real-time monitoring data of the parallel bypass circuit (including incoming current, outgoing current, incoming terminal temperature, outgoing terminal temperature, incoming voltage, over-temperature status, overload status, etc.). The network interface 294 is used to connect to the uplink terminal to transmit real-time short-circuit monitoring data.

[0068] A temperature measuring interface 411 is installed inside the shorting box 41; the top of each shorting conductive pin 422 is glued with thermally conductive adhesive to a thermistor 412, and each thermistor 412 is connected to the temperature measuring interface 411 by a lead wire, and the temperature measuring interface 411 is connected to the temperature measuring socket 291 by a lead wire.

[0069] The number of detection indicator lights 292 is three and they are set in parallel. One detection indicator light 292 is a short-circuit operation indicator. When the short-circuit module 4 is operating normally, this light flashes. If it is not normal, the light goes out. One detection indicator light 292 is a connection terminal over-temperature indicator. When the temperature of the connection terminal area 11 exceeds the preset warning threshold, this light stays on and goes out. Another detection indicator light 292 is a short-circuit overload indicator. When the current of the short-circuit module 4 exceeds the preset alarm threshold, this light stays on and goes out.

[0070] Furthermore, the control host 2 is also equipped with a power supply side switch 26 and a user side switch 27. The power supply side switch 26 is connected in series between the power supply side socket 21 and the four-pin socket 24, and the user side switch 27 is connected in series between the four-pin socket 24 and the control circuit board 29 to control the current flow of the parallel bypass. That is, the control host 2 is equipped with the power supply side socket 21, power supply side switch 26, four-pin socket 24, user side switch 27, control circuit board 29, and user side socket 22 connected in series.

[0071] The circuit between the power supply side switch 26 and the power supply side socket 21 is equipped with a current coil to read the current parameters flowing through it.

[0072] The power supply side switch 26 is electrically connected to the power supply side indicator light 261, and the user side switch 27 is electrically connected to the user side indicator light 271, which is used to detect the circuit flow of the control host 2.

[0073] Furthermore, a wire clamp 8 is installed below the short-circuit module 4. Before replacing the meter, the wire clamp 8 clamps the four meter busbars 3 to prevent the meter busbars 3 from touching each other after disconnection, thus preventing a short circuit.

[0074] See Figures 19 to 21 The wire clamp 8 includes a clamping outer shell 81 and a clamping inner shell 82 that can move along its length direction. The bottoms of both the clamping outer shell 81 and the clamping inner shell 82 are recessed to form four spaced wire clamping grooves 83. The wire clamping grooves 83 on the clamping outer shell 81 and the clamping inner shell 82 are staggered. By moving the clamping inner shell 82, the overlapping area of ​​the wire clamping grooves 83 on the clamping outer shell 81 and the clamping inner shell 82 is adjusted to clamp or release the busbar.

[0075] To enable the inner shell 82 to move along the length of the outer shell 81, preferably, a clamping spring 84 is fixedly connected to one side of the inner shell 82, and the other end of the clamping spring 84 is fixedly connected to the inner wall of the adjacent outer shell 81. A pressing plate 85 is provided on one side of the inner shell 82 opposite to the clamping spring 84, and an opening 86 is provided on one side of the outer shell 81 opposite to the clamping spring 84. The opening 86 corresponds to the position of the pressing plate 85. When the clamping groove 83 on the outer shell 81 and the inner shell 82 are completely misaligned, the clamping spring 84 is in a relaxed state. At this time, the pressing plate 85 protrudes from the opening 86 and pushes the inner shell 82 through the pressing plate 85, compressing the clamping spring 84. The overlapping area of ​​the clamping groove 83 on the outer shell 81 and the inner shell 82 gradually increases, which facilitates clamping the meter busbar 3 corresponding to its position.

[0076] Two symmetrically arranged strip holes 87 are provided on the outer casing 81. The strip holes 87 are arranged along their length direction. Each strip hole 87 is provided with a matching pin 88. The pin 88 passes through the outer casing 81 and the strip hole 87 in sequence and is fixed on the inner casing 82, so as to stably connect the outer casing 81 and the inner casing 82, and at the same time limit the displacement of the inner casing 82.

[0077] Working principle of the invention: See Figure 1-21 First, select and connect the incoming power module that matches the switch type on the incoming side of single-phase meter 1. Then, select and connect the outgoing power module that matches the switch type on the outgoing side of single-phase meter 1.

[0078] Then, the incoming power module is plugged into the power supply side socket 21, and the outgoing power module is plugged into the user side socket 22, so that the control host 2 and the single-phase meter 1 form a parallel bypass.

[0079] Then, the four meter busbars 3 are clamped by the clamping clamp 8: the clamping grooves 83 on the clamping outer shell 81 or the clamping inner shell 82 correspond one-to-one with the four meter busbars 3, the pressing plate 85 is pushed, which causes the clamping inner shell 82 to compress the clamping spring 84, so that the clamping inner shell 82 and the clamping outer shell 81 gradually overlap, so that the four meter busbars 3 enter the adjacent clamping grooves 83 respectively. The pressing plate 85 is released, and under the action of the elastic force, the clamping inner shell 82 and the clamping grooves 83 on the clamping outer shell 81 cooperate to clamp the meter busbars 3 and limit their movement.

[0080] Next, the shorting box 41 is installed on the single-phase meter 1: the shorting box 41 is connected to the connection terminal area 11 by the cooperation of the hook plate 43 and the hook groove 12. At this time, the four conductors 42 correspond to the positions of the four meter busbars 3 respectively. The hollow conductive tube 421 in each conductor 42 is suspended above the adjacent locking screw 31. The bottom of the shorting conductive pin 422 abuts against the adjacent meter conductive plate. Then, the four-pin plug 25 is plugged into the four-pin socket 24. At this time, the single-phase meter 1 is still connected to the original circuit.

[0081] Next, the temperature measuring socket 291 in the parallel bypass monitoring unit 28 is connected to the temperature measuring interface 411 of the short-circuit box 41 through the lead wire, and the power supply side switch 26 and the user side switch 27 are turned on in sequence to allow the parallel bypass current to flow, and the parallel bypass monitoring unit 28 monitors the temperature and current changes of the parallel bypass. Next, loosen the locking screws 31 on each meter busbar 3 in sequence, so that each locking screw 31 moves the meter conductive plate connected to it upward until each locking screw 31 presses against the hollow conductive tube 421 adjacent to it, separating the single-phase meter 1 from each meter busbar 3 and seamlessly switching to the parallel bypass, while continuing to measure the passing electricity. At this time, the original circuit is disconnected.

[0082] Next, the new meter is installed, connecting the four meter busbars 3 to the new meter. The original circuit is then connected. At the same time, the power supply side switch 26 and the user side switch 27 are turned off, cutting off the current of the parallel bypass and single-phase meter 1. The metering of the electricity passing through the circuit is seamlessly switched to the new meter, making the meter replacement process imperceptible to the user.

[0083] Finally, the single-phase meter 1, all power supply modules, and the control host 2 were removed to complete the meter replacement without power interruption.

[0084] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A multi-structure adaptive energy meter uninterrupted power replacement device, comprising a control host (2) connected to a single-phase energy meter (1); the single-phase energy meter (1) has switches of the same or different types connected to its inlet and outlet sides respectively, the inlet switch being connected to the power supply side socket (21) of the control host (2) through an inlet power extraction module, and the outlet switch being connected to the user side socket (22) of the control host (2) through an outlet power extraction module, the control host (2) and the single-phase energy meter (1) forming a parallel bypass; the single-phase energy meter (1) has a connection terminal area (11) at its lower part, and four spaced-apart meter busbars (3) are installed in the connection terminal area (11), each meter busbar (3) being locked to the single-phase energy meter (1) by a locking screw (31), characterized in that: The connection terminal area (11) is detachably connected to a short-circuit module (4). The short-circuit module (4) is connected to the control host (2) and the locking screw (31) respectively. By adjusting the locking screw (31) to tighten or loosen the adjacent meter bus (3), the single-phase meter (1) can be seamlessly switched from the original circuit to the parallel bypass, while continuing to measure the passing electricity.

2. The multi-structure adaptive energy meter uninterrupted replacement device according to claim 1, characterized in that: The power supply side socket (21) and the user side socket (22) are both two-core sockets, and a two-core plug (23) is inserted into the two-core socket. The incoming power supply module and the outgoing power supply module both include a connected electrical conductor and a connector. When the connector is connected to the adjacent switch, one end of the electrical conductor is connected to the switch to conduct electricity, and the other end is connected to the lead wire of the adjacent two-core plug (23).

3. The multi-structure adaptive energy meter uninterrupted replacement device according to claim 2, characterized in that: The switch is a busbar switch (5); the conductor includes a conductive block (51) connected to the conductive piece of the L line of the busbar switch (5) and another conductive block (51) connected to the conductive piece of the N line of the busbar switch (5); each conductive block (51) has a conductive baffle (52) fixedly connected to it at its bottom, and a clamp (53) for accommodating the conductive piece is formed between the conductive baffle (52) and the conductive block (51); the connector is a retractable conductive core (54) slidably connected in the conductive block (51), one end of the retractable conductive core (54) cooperates with the conductive baffle (52) to clamp the adjacent conductive piece, and the other end is connected to the lead wire of the adjacent two-core plug (23); the outer periphery of the conductive block (51), the retractable conductive core (54), and the conductive baffle (52) is provided with an insulating shell (55) covering its exposed parts.

4. The multi-structure adaptive energy meter uninterrupted replacement device according to claim 2, characterized in that: The switch is an open circuit breaker (6); the electrical conductor includes two open circuit conductive pins (62) installed in the open circuit breaker housing (61), the tops of the two open circuit conductive pins (62) are respectively connected to the adjacent two-core plugs (23), and the bottoms of the two open circuit conductive pins (62) extend outward through the open circuit breaker housing (61); the connector is a side plate (63) fixedly connected to both sides of the open circuit breaker housing (61), and the other ends of the two side plates (63) extend towards each other to form ear plates (64); the upper parts of the two side plates (63) are connected by a connecting plate (65); when the open circuit breaker (6) is placed between the two side plates (63) and tightly fitted thereto, the button of the open circuit breaker (6) protrudes from between the connecting plate (65) and the open circuit breaker housing (61), and the bottoms of the two open circuit conductive pins (62) respectively abut against the wiring screws of the L line and N line of the open circuit breaker (6).

5. The multi-structure adaptive energy meter uninterrupted replacement device according to claim 2, characterized in that: The switch is a residual current circuit breaker (7); the electrical conductor includes two residual current conductive pins (72) installed inside the residual current circuit breaker housing (71), the tops of the two residual current conductive pins (72) are respectively connected to the adjacent two-core plugs (23), and the bottoms of the two residual current conductive pins (72) extend outward through the residual current circuit breaker housing (71); the connector is an L-shaped plate (73), the free end of the long plate (731) of the L-shaped plate (73) is fixedly connected to the residual current circuit breaker housing (71), and the short plate (732) of the L-shaped plate (73) is connected to the residual current circuit breaker housing (71). 1) Placed on the same side, the short plate (732) and the leakage protection box (71) form a space to accommodate the leakage protection switch (7); the top and bottom of the leakage protection switch (7) are respectively provided with slots (74), and the leakage protection box (71) and the short plate (732) are both equipped with buckles (75) that engage with the slots (74); when the leakage protection switch (7) is connected to the L-shaped plate (73), the bottoms of the two leakage protection conductive pins (72) abut against the wiring screws of the L line and N line of the leakage protection switch (7) respectively.

6. The multi-structure adaptive energy meter uninterrupted replacement device according to claim 2, characterized in that: The control host (2) is also provided with a four-core socket (24), which is connected in series between the power supply side socket (21) and the user side socket (22). A four-core plug (25) is inserted into the four-core socket (24). The shorting module (4) includes a shorting box (41), and four electrical conductors (42) are arranged at intervals inside the shorting box (41). The four electrical conductors (42) correspond to the four meter busbars (3) respectively. Each electrical conductor (42) includes two hollow conductive tubes arranged in the same row. The tube (421) has two shorting conductive pins (422) placed on both sides of the hollow conductive tube (421). Each hollow conductive tube (421) and shorting conductive pin (422) is vertically installed inside the shorting box (41). The top of the hollow conductive tube (421) and shorting conductive pin (422) of each conductor (42) is connected to the four-core plug (25) by lead wires. The bottom of the hollow conductive tube (421) and shorting conductive pin (422) extends outward through the shorting box (41).

7. The multi-structure adaptive energy meter uninterrupted replacement device according to claim 6, characterized in that: The locking screws (31) placed on the same meter busbar (3) are connected by meter conductive plates. When the shorting box (41) is detachably connected to the connection terminal area (11), the hollow conductive tube (421) in each of the electrical conductors (42) is suspended above the adjacent locking screw (31), and the bottom of the shorting conductive pin (422) abuts against the adjacent meter conductive plate. By locking or loosening the adjacent meter busbar (3) with the locking screw (31), the distance between the locking screw (31) and the adjacent hollow conductive tube (421) is adjusted. When the locking screw (31) and the hollow conductive tube (421) are separated, the single-phase meter (1) is connected to the original circuit. When the locking screw (31) contacts the hollow conductive tube (421), the single-phase meter (1) is switched to parallel bypass.

8. The multi-structure adaptive energy meter uninterrupted replacement device according to claim 7, characterized in that: The four busbars (3) of the meter are limited by the clamps (8); the clamps (8) include a clamp shell (81) and an inner clamp shell (82) that can move along its length direction. The bottom of the clamp shell (81) and the inner clamp shell (82) are recessed to form four spaced clamping grooves (83). The clamping grooves (83) on the clamp shell (81) and the inner clamp shell (82) are misaligned. By moving the inner clamp shell (82), the overlapping area of ​​the clamping grooves (83) on the clamp shell (81) and the inner clamp shell (82) is adjusted to clamp or release the busbars (3).

9. A multi-structure adaptive energy meter uninterrupted replacement device according to claim 8, characterized in that: The control host (2) is also equipped with a power supply side switch (26), a user side switch (27) and a parallel bypass monitoring unit (28); the power supply side switch (26) is connected in series between the power supply side socket (21) and the four-core socket (24); the parallel bypass monitoring unit (28) is connected in series between the four-core socket (24) and the user side socket (22); the user side switch (27) is connected in series between the four-core socket (24) and the parallel bypass monitoring unit (28); the lead wire of the parallel bypass monitoring unit (28) is connected to the shorting box (41).

10. The method of using the multi-structure adaptive energy meter uninterrupted power replacement device according to claim 9, characterized in that: Specifically, the following steps are included: S1, select and connect the incoming power module that is compatible with the switch type on the incoming side of the single-phase meter (1), and select and connect the outgoing power module that is compatible with the switch type on the outgoing side of the single-phase meter (1). S2, the incoming power module is plugged into the power supply side socket (21), the outgoing power module is plugged into the user side socket (22), and the control host (2) and the single-phase meter (1) form a parallel bypass; S3, the four meter busbars (3) are clamped by the clamp (8) for limiting; S4, install the shorting box (41) on the single-phase meter (1), the four electrical conductors (42) correspond to the positions of the four meter busbars (3) respectively, the hollow conductive tube (421) in each electrical conductor (42) is suspended above the adjacent locking screw (31), and the bottom of the shorting conductive pin (422) abuts against the adjacent meter conductive piece; plug the four-core plug (25) into the four-core socket (24); S5, after connecting the lead wire of the parallel bypass monitoring unit (28) to the short-circuit box (41), turn on the power supply side switch (26) and the user side switch (27) in sequence to allow the parallel bypass current to flow, and the parallel bypass monitoring unit (28) monitors the temperature and current changes of the parallel bypass; S6, loosen the locking screws (31) on each of the meter busbars (3) in sequence, so that each locking screw (31) drives the meter conducting piece connected to it to move up until each locking screw (31) presses against the hollow conductive tube (421) adjacent to it, separating the single-phase meter (1) from each meter busbar (3), the original circuit is cut off, and at the same time the single-phase meter (1) seamlessly switches to the parallel bypass to continue measuring the passing electricity; S7, connect the four busbars (3) of the electricity meter to the new electricity meter, connect the original circuit, and at the same time close the power supply side switch (26) and the user side switch (27), cut off the parallel bypass, and seamlessly switch to the new electricity meter to continue metering the circuit; S8, remove the single-phase electricity meter (1), incoming power module, outgoing power module and control host (2) to complete the meter replacement without power interruption.

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