Power distribution apparatus allowing for step-by-step power drawing

Abstract

A power distribution apparatus allowing for step-by-step power drawing. The power distribution device is provided with a main case; a step-by-step power drawing mechanism and a control mechanism are arranged in the main case; a clamping mechanism is arranged on the outer side of the main case; the main case is clamped on a bus duct by means of the clamping mechanism; the step-by-step power drawing mechanism is connected to the bus duct to draw power and is electrically connected to an electric device by means of a plurality of power sockets or industrial electrical connectors for power outputting; the control mechanism is electrically connected to the step-by-step power drawing mechanism, and performs safety control on the power drawing and outputting process. The apparatus of the present invention can be simply, conveniently and quickly clamped to the bus duct to achieve plug-in power drawing from the bus duct, and can also implement safety control on the power drawing and current outputting process, so that higher efficiency and safer usage are achieved.

Description

Power distribution device capable of taking power in steps

Technical field

[0001] The present invention relates to a power distribution system for distributing power to equipment such as PDU, and in particular to a step-by-step power distribution device which can be connected to a bus duct and can draw power in steps. [Background Technology]

[0002] Busbar trunk distribution devices, or bus ducts, are widely used in the power distribution systems of low-voltage complete switchgear and control equipment. They are used to replace cables and wires to distribute power to electrical equipment loads such as high-rise buildings, factories, IDC (Internet Data Center) rooms, and PDUs (Power Distribution Units). Existing bus ducts are a new type of conductor that uses copper or aluminum as a conductor, supported by an insulator, and then installed in a metal trough. They have become an indispensable wiring method in power systems. When the bus duct is in use, it must be connected to the electrical equipment. Among the existing methods, some use sockets and outlet boxes to draw power and output, and some use sockets to draw power. However, the existing methods and devices have a low degree of integration, lack the convenience of installation and use, and lack the reliability and safety of the connection.

[0003] [Summary of the invention]

[0004] The present invention aims to solve the above problems and provide a power distribution device that can be easily and quickly connected to the bus duct and draw power through a flexibly operable step-by-step power-drawing mechanism. The electric energy obtained from the bus duct can be distributed to electrical equipment in a variety of ways. It has a high degree of integration, reliable connection, and is safe to use.

[0005] To achieve the above-mentioned purpose, the present invention provides a power distribution device that can draw power in steps. The power distribution device is provided with a main box body, and a step-by-step power drawing mechanism and a control mechanism are provided in the main box body. A clamping mechanism is provided on the outside of the main box body. The main box body is clamped on the bus duct through the clamping mechanism. The step-by-step power drawing mechanism is connected to the bus duct to draw power, and is electrically connected to the electrical equipment through multiple power sockets or industrial electrical connectors for power output. The control mechanism is electrically connected to the step-by-step power drawing mechanism to safely control the power drawing and output processes.

[0006] The front panel of the main box body is provided with a concealed power socket for connecting electrical equipment, which is hidden behind the openable and closable outer cover. The top of the main box body is provided with a window for the upper end of the step-by-step power supply mechanism to extend.

[0007] The bus duct is provided with a trough body with open ends and a bottom, a convex edge for connecting the clamping mechanism is provided on the outside of the trough body along the length direction, and a plurality of insulating sheaths are arranged at intervals in the width direction inside the trough body, each insulating sheath is provided with a first conductive plate, and multiple first conductive plates are arranged into a first conductive plate group, and the two ends of each first conductive plate extend from the two ends of the insulating sheath.

[0008] The clamping mechanism is provided with two clamping boxes, which are symmetrically fixed to the upper ends of both sides of the main box body, and the two clamping boxes are respectively provided with a first claw groove, a second claw groove and a spring groove, and each clamping box is symmetrically provided with a retractable first claw and a second claw on both sides along the width direction, and the first claw and the second claw are respectively connected to the first return spring, and a first claw opening and closing key and a second claw opening and closing key that can move laterally are symmetrically provided at the lower part of the clamping box, and a first guide groove and a second guide groove are respectively provided on the first claw opening and closing key and the second claw opening and closing key, and a vertically movable claw release button is provided on both sides of the clamping box, and a first limiting protrusion is provided on the claw release button, and a second limiting protrusion that cooperates with the first limiting protrusion for limiting is provided on the first claw and the second claw.

[0009] The first claw and the second claw are respectively arranged in the first claw groove and the second claw groove in the two card connection boxes, and the first return spring is arranged in the spring groove. The first claw and the second claw are in an inverted L-shape, and one end thereof is formed with a longitudinal protrusion and a transverse protrusion that turn at a right angle. The longitudinal protrusion is respectively inserted into the first guide groove and the second guide groove on the first claw opening and closing key and the second claw opening and closing key. The length of the first guide groove and the second guide groove is greater than the length of the longitudinal protrusion of the first claw and the second claw, so that the longitudinal protrusion can move in the first guide groove and the second guide groove and push the first claw and the second claw to move. The two transverse protrusions are located at both ends of the spring groove, and the two ends of the first return spring are connected to the two transverse protrusions. The free ends of the first claw and the second claw extend out of the card connection box, and their ends are provided with hooks that turn inward.

[0010] The first claw opening and closing key and the second claw opening and closing key are symmetrically arranged in the notches on both sides of the lower part of the card box, separated by a partition in the middle, and a second return spring is installed in the spring hole on the partition, and the two ends of the second return spring are respectively connected to the first claw opening and closing key and the second claw opening and closing key. When the first claw opening and closing key and the second claw opening and closing key are pushed inward, the first claw and the second claw are opened outward, and the first claw and the second claw are placed on the convex edge of the busbar trough and the first claw opening and closing key and the second claw opening and closing key are released, so that the hook can be locked on the convex edge.

[0011] The step-by-step power-taking mechanism is arranged at an upper portion of one side of the main box body, and includes a power-taking portion for connecting to the bus duct and an operating portion for performing power-taking operations.

[0012] The power taking part includes several second conductive plates, several insulating plates and a fixed seat. The several second conductive plates are connected to the multiple insulating plates, and their upper ends are against the elastic conductive copper plates on one side of the insulating plates. The several second conductive plates and the elastic conductive copper plates are arranged into a second conductive plate group along the width direction of the main box body corresponding to the first conductive plate group in the bus duct. The second conductive plate group, multiple insulating plates and multiple elastic conductive copper plates are arranged on a fixed seat connected to the main box body, and the upper end of the second conductive plate group extends out of the main box body.

[0013] The operating part is connected to the lower side of the power taking part, and is provided with a connecting rod mechanism that drives the power taking part to move up and down. The connecting rod mechanism is connected to a connecting seat fixed to the side wall of the main box body. The input end of the connecting rod mechanism is connected to the operating handle. The main body of the operating handle extends to the outside of the main box body. The output end of the connecting rod mechanism is connected to a vertical lifting rod. The upper end of the lifting rod is fixed to the bracket. Two guide columns are fixed on the bracket. The two guide columns enter the bracket upward. The bracket can move up and down along the two guide columns under the action of the lifting rod to connect or disconnect the second conductive plate group with the first conductive plate group in the bus duct to take power.

[0014] The connecting rod mechanism includes an active connecting rod and two pairs of driven connecting rods, wherein the active connecting rod has three arms, the first arm of which is hinged to the operating handle and rotates around a first pin fixed to the side wall of the connecting seat, the second arm is placed in a limiting groove at the top of the connecting seat, and the end of the third arm is hinged to the two pairs of driven connecting rods through a second pin, one end of the driven connecting rod is hinged to the third pin, and the other end of the driven connecting rod is hinged to the lifting rod of the operating part. When the operating handle is pressed down or lifted, the connecting rod mechanism pushes the lifting rod to move up and down, so that the second conductive plate group of the power-taking mechanism is plugged into or disconnected from the first conductive plate group in the bus duct to take power.

[0015] The control mechanism includes a control unit, a power supply unit, an output unit and a monitoring module, wherein the monitoring module integrates a switching power supply, a current acquisition unit, a voltage acquisition unit, a monitoring unit, a communication interface unit and a display screen. The control unit is a circuit breaker, on which the power supply unit and the output unit are connected. The power supply unit is electrically connected to the power supply part of the step-by-step power supply mechanism, and the output unit is electrically connected to the power socket or the industrial electrical connector. A switching power supply is connected between the power supply unit and the control unit, and a current acquisition unit and a voltage acquisition unit are connected between the control unit and the output unit. The current acquisition unit and the voltage acquisition unit are respectively electrically connected to the power supply part of the step-by-step power supply mechanism, and the current acquisition unit and the voltage acquisition unit are also respectively connected to the monitoring unit. The monitoring unit is a single-chip microcomputer, which is respectively connected to the switching power supply, the communication interface unit and the display screen.

[0016] The contribution of the present invention is that it effectively solves the problem of plug-in power supply for bus trough type power distribution systems. The device of the present invention can be easily and quickly snapped onto the bus trough to achieve plug-in power supply from the bus trough. Due to the provision of a step-by-step power supply mechanism that integrates snap-in and power supply, it can not only be quickly connected to the bus trough, but also has strong adaptability to the conductive components of the bus trough, reliable connection, and simple and quick plug-in and power supply operations. At the same time, since the device of the present invention is provided with a control mechanism, it can safely control the power supply and current output process, so it is more efficient and safer to use.

Brief Description of the Drawings

[0017] FIG1 is a perspective schematic diagram of the overall structure of the present invention, wherein FIG1A is a perspective schematic diagram of an output end being a power socket, and FIG1B is a perspective schematic diagram of an output end being an industrial electrical connector.

[0018] FIG2 is an exploded perspective schematic diagram of the overall structural components of the present invention, wherein FIG2A is an exploded schematic diagram of the components with the output end being a power socket, and FIG2B is a schematic diagram of the output end being an industrial electrical connector.

[0019] Figure 3 is a schematic diagram of the structure of the clamping mechanism of the present invention, wherein Figure 3A is a schematic diagram of the exploded three-dimensional structure of the upper part of the clamping mechanism, Figure 3B is a schematic diagram of the exploded three-dimensional structure of the lower part of the clamping mechanism, Figure 3C is a schematic diagram of the clamping mechanism with the upper cover removed, Figure 3D is a schematic diagram of the clamping claw release button, Figure 3E is a schematic diagram of the clamping claw in the open state, and Figure 3F is a schematic diagram of the clamping claw in the retracted state.

[0020] Figure 4 is a schematic diagram of the structure of the step-by-step power-taking mechanism of the present invention, wherein Figure 4A is a three-dimensional schematic diagram of the overall structure, Figure 4B is a three-dimensional schematic diagram of the exploded components, Figure 4C is a structural sectional view, Figure 4D is a three-dimensional schematic diagram of the power-taking part structure, Figure 4E is a three-dimensional schematic diagram of the exploded components of the power-taking part, Figure 4F is a three-dimensional schematic diagram of the operating part structure, and Figure 4G is a three-dimensional schematic diagram of the exploded components of the operating part.

[0021] FIG5 is a schematic diagram of the bus duct structure of the present invention, wherein FIG5A is a three-dimensional schematic diagram, and FIG5B is a three-dimensional schematic diagram of component decomposition.

[0022] FIG6 is a circuit block diagram of the control mechanism of the present invention. [Specific implementation method]

[0023] The following examples are provided to further explain and illustrate the present invention and do not constitute any limitation to the present invention.

[0024] Referring to Figures 1-3, the power distribution device with step-by-step power draw of the present invention includes a main housing 10, a latching mechanism 20, a step-by-step power draw mechanism 30, a control mechanism 40, and a bus duct 50. The main housing 10 is provided with the latching mechanism 20 and the step-by-step power draw mechanism 30. The latching mechanism 20 latches onto the bus duct 50 and connects to the step-by-step power draw mechanism 30 to draw power. The control mechanism 40 distributes and safely controls power transmission and output from the bus duct. The present invention will be described in more detail below with reference to the accompanying drawings.

[0025] As shown in Figures 1, 2, and 5, the main housing 10 is located below the bus duct 50 and houses the step-by-step power supply mechanism 30 and control mechanism 40. In the embodiment shown in Figures 1A and 2A, several power sockets 61 for power output are provided on the front side of the main housing 10. In this embodiment, these power sockets 61 are concealed, located on the front panel of the main housing 10 and hidden behind a retractable cover 611. They are used to connect to terminal electrical devices such as PDUs. In another embodiment shown in Figures 1B and 2B, several industrial electrical connectors 62 for power output are provided at the bottom of the main housing 10. Users can select the appropriate power sockets 61 or industrial electrical connectors 62 as needed. A window 11 is provided at the top of the main housing 10, through which the upper end of the step-by-step power supply mechanism 30 extends. A hole is provided on the side of the main housing 10, through which the operating handle of the step-by-step power supply mechanism 30 extends.

[0026] As shown in Figures 5A and 5B, the bus duct 50 is provided with a trough body 51 with open ends and a bottom. The trough body 51 is made of aluminum alloy. The open bottom of the trough body 51 is used for electrical connection between the first conductive plate group 53A therein and the second conductive plate group 31A of the step-by-step power supply mechanism 30. Lugs 511 are provided on both outer sides of the trough body 51 along the length direction, which are used to connect the clamping mechanism 20. A plurality of vertical partitions 512 are provided in the trough body 51 along the width direction. The upper ends of the vertical partitions 512 are connected to the top of the trough body 51. Three inwardly convex inner steps 5121 extending from one end of the vertical partition to the other end are provided at intervals on one side wall of each vertical partition 512. An insulating sheath 52 is provided in the cavity formed by each two adjacent vertical partitions 512. The insulating sheath 52 is a sleeve-like body with an open bottom. The lower end of the insulating sheath is provided with an inwardly folded arcuate groove 521 for accommodating the first conductive plate 53. The end of the insulating sheath expands outward to facilitate the introduction of the second conductive plate group 31A of the step-by-step power supply mechanism. A stop plate 522 extending from one end to the other is connected to the edge of the top of the insulating sheath corresponding to the arcuate groove 521. One of the outer sides of the insulating sheath is provided with an outwardly protruding outer step 523. The insulating sheath 52 is made of a fire-retardant insulating material. The insulating sheath 52 is supported on the inner step 5121 of the vertical partition 512 by its outer step 523. Each insulating sheath 52 contains a first conductive plate 53, with the upper and lower ends of the first conductive plate 53 being restrained by the stop plate 522 and the arcuate groove 521, respectively. The first conductive plate 53 is a strip of copper plate, and its input end is electrically connected to an external power distribution device, such as a distribution cabinet. Multiple first conductive plates 53 are arranged into a first conductive plate group 53A. One end of each first conductive plate 53 extends from the insulating sheath 52 and is connected to a device such as a power distribution cabinet. The other end of the first conductive plate 53 extends from the insulating sheath 52 to be electrically connected to another bus duct or to be sealed by an end cap.

[0027] A clamping mechanism 20 is provided on the outside of the main box 10 , and the main box 10 is clamped to the bus duct 50 via the clamping mechanism 20 .

[0028] Specifically, as shown in Figures 3A to 3F, the latching mechanism 20 includes a latching box 21, a first latching claw 22, a second latching claw 23, a first return spring 24, a first latching claw opening and closing key 25, a second latching claw opening and closing key 26, and a latching claw release button 27. The two latching boxes 21 are symmetrically fixed to the upper ends of the two side surfaces of the main housing 10. The latching mechanism 20 is disposed on each of the two latching boxes 21. Each of the two latching boxes 21 is provided with a first latching claw slot 211, a second latching claw slot 212, and a spring slot 213. Each latching box 21 is symmetrically provided with a first latching claw 22 and a second latching claw 23 along its width. These first and second latching claws 22 and 23 are movable and retractable along the width of the latching box 21. The first and second latching claws 22 and 23 are respectively disposed within the first and second latching claw slots 211 and 212 of the two latching boxes 21, and the first return spring 24 is disposed within the spring slot 213. The first and second jaw opening and closing keys 25 and 26 are respectively provided with a first guide groove 251 and a second guide groove 261. The first and second jaws 22 and 23 are inverted L-shaped, with longitudinal protrusions 222 and 232 and transverse protrusions 223 and 233 formed at one end at right angles. The longitudinal protrusion 222 of the first jaw is inserted into the first guide groove 251 of the first jaw opening and closing key, and the longitudinal protrusion 3232 of the second jaw is inserted into the second guide groove 261 of the second jaw opening and closing key. The transverse lengths of the first and second guide grooves 251 and 261 are greater than the transverse lengths of the longitudinal protrusions 222 and 232 of the first and second jaws, allowing the longitudinal protrusions 222 and 232 to move within the first and second guide grooves 251 and 261, thereby pushing the first and second jaws 22 and 23 to move, thereby engaging or disengaging with the busbar duct 50. The two transverse protrusions 223 and 233 of the first and second clamping jaws 22 and 23 are located at both ends of the spring slot 213, and the two ends of the first return spring 24 are connected to the two transverse protrusions 223 and 233. The free ends of the first and second clamping jaws 22 and 23 extend outside the clamping box 21, and are equipped with inward-turned hooks 224 and 234 at their ends for engaging with the ridge 511 of the busbar duct. The clamping arms of the first and second clamping jaws 22 and 23 are respectively equipped with block-shaped second limiting protrusions 221 and 231. These second limiting protrusions cooperate with the first limiting protrusions 271 and 272 on the clamping jaw release button 27 to limit the first and second clamping jaws 22 and 23, and the clamping jaw release button 27. The first and second jaw opening and closing keys 25, 26 are symmetrically positioned within the notches on either side of the lower portion of the card connection box 21, separated by a partition 214. A second return spring 28 is mounted within a spring hole 2141 in the center of the partition. The second return spring 28 is connected at both ends to the first and second jaw opening and closing keys 25, 26, respectively, for resetting the two opening and closing keys. A vertically movable jaw release button 27 is provided on each side of the card connection box 21.As shown in Figure 3D, the claw release button 27 is a rectangular block with a smaller top and larger bottom. One side of its lower portion is provided with first limiting projections 271 and 272, and a vertical spring hole is located in its center. A third return spring 29 is installed in the spring hole. The two claw release buttons 27 are movably mounted within button holders 273, which are fixed to the connecting box 21 located on either side of the first and second claws 22 and 23. The button holders 273 have a convex notch, and the lower portion of the claw release button 27 is movably positioned within the lower notch, allowing it to move up and down within the notch. The claw release button 27 is provided with first limiting projections 271 and 272, which cooperate with the second limiting projections 221 and 231 on the claw arms to limit the position. These first limiting projections 271 and 272 extend out of the notch in the button holders 273. As shown in Figures 3E and 3F, when the first and second clamping jaws 22 and 23 are in the retracted state, the second limiting protrusions 221 and 231 on their clamping jaw arms are located above the first limiting protrusions 271 and 272 on the clamping jaw release button 27. At this time, the clamping jaw release button 27 cannot move up and down. When the step-by-step power supply mechanism 30 is to be connected to the bus duct 50, the first and second clamping jaw opening and closing keys 25 and 26 can be pushed inward. The longitudinal protrusions 222 and 232 of the first and second clamping jaws 22 and 23 push the first and second clamping jaws 22 and 23 outward. At this time, the second limiting protrusions 221 and 231 on the first and second clamping jaws 22 and 23 move to the outside of the first limiting protrusions 271 and 272 on the clamping jaw release button 27, and the clamping jaw release button 27 is released from the limit and pops up. When the claw release button 27 is pressed and the first claw opening and closing key 25 and the second claw opening and closing key 26 are released, the first claw 22 and the second claw 23 move to opposite sides, and their hooks 224 and 234 are locked on the convex edge 511 of the bus duct, and the step-by-step power supply mechanism 30 is connected to the bus duct 50, thereby completing the first step of step-by-step power supply.

[0029] A step-by-step power taking mechanism 30 is clamped on the bus duct to realize the step-by-step power taking function of clamping and taking power, monitor the power transmission process of the bus duct, and collect, transmit and display data on the current and voltage of the bus duct conductors.

[0030] Specifically, as shown in Figures 4A to 4E, the step-by-step power supply mechanism 30 is provided at the upper part of one side of the main box body 10, and includes a power supply portion 31 for connecting to the bus duct and an operating portion 32 for performing power supply operations. The power supply portion 31 includes a plurality of second conductive plates 311, a plurality of insulating plates 312, and a fixing seat 313. The second conductive plate 311 is a strip-shaped conductive copper plate, the upper end of which is composed of an outward-turning inclined surface, a vertical plane turned from the inclined surface, and an arc surface turned from the vertical plane. The turning surface is used to increase the elasticity of the second conductive plate and the reliability of the electrical connection. The lower end of the second conductive plate 311 is L-shaped. The L-shaped connection end of each second conductive plate 311 is fixed to the fixing seat 313 with screws. A front baffle 316 is fixed to the front side of the fixing seat 313 with screws. The upper end of each second conductive plate 311 rests against a resilient conductive copper plate 314 on one side of the insulating plate 312. This resilient conductive copper plate is a curved plate formed by multiple transitional sections, with a U-shaped arc at its upper end. This U-shaped arc rests against the insulating plate 312. The curved shape of this resilient conductive copper plate helps increase the elastic deformation of the second conductive plates 311 during insertion and ensures close contact after insertion. The multiple second conductive plates 311 of the power extraction unit 31 are arranged along the width of the main housing 10, corresponding to the first conductive plate group 53A in the bus duct. The upper end of the second conductive plate group 31A extends outside the main housing 10 through the window 11 in the upper portion of the main housing. The second conductive plate group 31A is inserted from the bottom of the bus duct into the first conductive plate group 53A, connecting the second conductive plate group 31A with the first conductive plate group 53A to draw power. This completes the second step of the step-by-step power extraction.

[0031] As shown in Figures 4A to 4C and Figures 4F to 4G, the operating part 32 includes a connecting rod mechanism 321, a connecting seat 322, an operating handle 323, a lifting rod 324 and a guide column 325. The operating part 32 is connected to the lower side of the power taking part 31, and is provided with a connecting rod mechanism 321 that drives the power taking part to move up and down. The connecting rod mechanism 321 includes an active connecting rod 3211 and two pairs of driven connecting rods 3212 and 3213. Among them, the active connecting rod 3211 is a multi-arm connecting rod with three arms, the first arm 3211A of which is fixedly connected to the operating handle 323 and rotates around the first pin 3214 fixed to the side wall of the connecting seat 322. The second arm 3211B is placed in the limiting groove 3221 at the top of the connecting seat to limit the left and right movement of the active connecting rod 3211. The end of the third arm 3211C is hinged to two pairs of driven links 3212 and 3213 via a second pin 3215. Each pair of driven links 3212 and 3213 is composed of two symmetrical links in front and back. The other end of the driven link 3212 is hinged to the third pin 3216. The other end of the driven link 3213 is hinged to the lifting rod 324 of the operating part. The connecting rod mechanism 321 is connected to the connecting seat 322 fixed to the side wall of the main box body. The input end of the connecting rod mechanism 321 is connected to the operating handle 323. The main body of the operating handle 323 extends to the outside of the main box body 10. The output end of the connecting rod mechanism 321 is connected to the vertical lifting rod 324, and the upper end of the lifting rod 324 is fixed to the bracket 315. Two guide posts 325 are fixed to the bracket 315 of the power supply unit. The lower ends of the two guide posts 325 are fixed to a support plate 326 connected to the side wall of the main housing 10. The two guide posts 325 extend upward into the bracket 315. Driven by the lifting rod 324, the bracket 315 can move up and down along the two guide posts 325, connecting or disconnecting the second conductive plate group 31A with the first conductive plate group 53A in the bus duct to draw power. When the operating handle 323 is pressed or lifted, the linkage mechanism 321 pushes the lifting rod 324 up and down, connecting or disconnecting the second conductive plate group 31A of the power supply unit with the first conductive plate group 53A in the bus duct to draw power.

[0032] When taking power in steps, first, the step-by-step power taking mechanism 30 is clamped to the bottom of the bus duct 50 through the clamping mechanism 20. After the clamping is completed, the second conductive plate group 31A of the step-by-step power taking mechanism is located below the first conductive plate group 53A of the bus duct. When the operating handle 323 of the step-by-step power taking mechanism is pressed, the second conductive plate group 31A moves upward under the drive of the connecting rod mechanism 321 and is inserted into the first conductive plate group 53A of the bus duct, so that each second conductive plate 311 of the second conductive plate group 31A is in close contact with each first conductive plate 53 of the first conductive plate group 53A and is conductive, thereby completing the step-by-step power taking of the step-by-step power taking mechanism 30 from the bus duct. If you want to disconnect, just lift the operating handle 323.

[0033] As shown in Figure 6, the control mechanism 40 includes a control unit 41, a power supply unit 42, an output unit 43, and a monitoring module 44. The monitoring module 44 integrates a switching power supply 441, a current acquisition unit 442, a voltage acquisition unit 443, a monitoring unit 444, a communication interface unit 445, and a display screen 446. The control unit 41 is a circuit breaker that distributes power to the busbar and connects and disconnects power-consuming devices to the busbar circuit, protecting the power distribution system. When a line is severely overloaded or a fault occurs, it automatically disconnects the circuit to ensure the safe use of the busbar and the step-by-step power supply device. The control unit 41 is electrically connected to the power supply unit 42 and the output unit 43, respectively. The power supply unit 42 is electrically connected to the first conductive plate assembly 31A of the power supply unit 31. The output unit 43 is electrically connected to the power socket 61 or industrial electrical connector 62. A switching power supply 441 is connected between the power supply unit 42 and the control unit 41. Connected between the control unit 41 and the output unit 43 are a current acquisition unit 442 and a voltage acquisition unit 443. These are current sensors and voltage sensors, respectively, that are electrically connected to the power extraction portion 31 of the step-by-step power extraction mechanism and are used to collect real-time data on the current and voltage of the power extraction unit 42. The current acquisition unit 442 and the voltage acquisition unit 443 are also connected to a monitoring unit 444, which is a single-chip microcomputer and is connected to the switching power supply 441, the communication interface unit 445, and the display screen 446. The monitoring unit 47 analyzes and processes the monitored current and voltage data, converting them into data such as power, energy, and temperature, and then sends signals to the switching power supply 441 and the communication interface unit 445 for display on the display screen 446.

[0034] Thus, the power distribution device of the present invention that can draw power in steps is provided with a step-by-step power drawing mechanism that can draw power in steps. It can be quickly connected to the bus duct through the clamping mechanism, and the step-by-step power drawing mechanism can be operated to draw power from the bus duct and safely distribute the obtained electric energy to the electrical equipment. It can also effectively and safely control the power drawing and output processes, thereby providing a safe and efficient power distribution system for electrical equipment such as PDU.

[0035] Although the present invention is disclosed through the above embodiments, the protection scope of the present invention is not limited thereto. Without departing from the concept of the present invention, any deformation or replacement of the above components shall fall within the scope of the claims of the present invention.

Claims

1. A power distribution device capable of taking power in steps, characterized in that: The power distribution device is provided with a main box (10), wherein a step-by-step power taking mechanism (30) and a control mechanism (40) are provided inside the main box (10), and a clamping mechanism (20) is provided outside the main box (10), wherein the main box (10) is clamped on a bus duct (50) via the clamping mechanism (20), wherein the step-by-step power taking mechanism (30) is connected to the bus duct (50) to take power, and is electrically connected to electrical equipment via a plurality of power sockets (61) or industrial electrical connectors (62) for power output, and wherein the control mechanism (40) is electrically connected to the step-by-step power taking mechanism (30), and safety control is performed on the power taking and output processes.

2. The power distribution device capable of taking power in steps according to claim 1, characterized in that: A concealed power socket (61) for connecting to electrical equipment is provided on the front panel of the main box (10), which is hidden behind an openable and closable outer cover (611). A window (11) is provided on the top of the main box (10) for the upper end of the step-by-step power supply mechanism (30) to extend out.

3. The power distribution device capable of taking power in steps according to claim 1, characterized in that: The bus duct (50) is provided with a trough body (51) with two ends and an open bottom, a convex edge (511) for connecting the clamping mechanism (20) is provided on the outer side of the trough body (51) along the length direction, a plurality of insulating sheaths (52) are arranged at intervals in the width direction in the trough body (51), each insulating sheath (52) is provided with a first conductive plate (53), and a plurality of first conductive plates (53) are arranged into a first conductive plate group (53A), and two ends of each first conductive plate (53) extend out from two ends of the insulating sheath (52).

4. The power distribution device capable of taking power in steps according to claim 1, characterized in that: The clamping mechanism (20) is provided with two clamping boxes (21), the two clamping boxes (21) are symmetrically fixed to the upper ends of both sides of the main box body (10), the two clamping boxes (21) are respectively provided with a first clamping claw groove (211), a second clamping claw groove (212) and a spring groove (213), each clamping box (21) is symmetrically provided with a retractable first clamping claw (22) and a second clamping claw (23) on both sides along the width direction, the first clamping claw (22) and the second clamping claw (23) are respectively connected to a first return spring (24), and a first clamping claw opening and closing key (25) and a second clamping claw opening and closing key (26) that can move laterally are symmetrically provided at the lower part of the clamping box (21), A first guide groove (251) and a second guide groove (261) are respectively provided on the first clamping claw opening and closing key (25) and the second clamping claw opening and closing key (26); vertically movable clamping claw release buttons (27) are provided on both sides of the clamping box (21); a first limiting protrusion (271, 272) is provided on the clamping claw release button (27); and second limiting protrusions (221, 231) are respectively provided on the first clamping claw (22) and the second clamping claw (23) for limiting the position in cooperation with the first limiting protrusions (271, 272).

5. The power distribution device capable of taking power in steps as claimed in any one of claims 4, characterized in that: The first clamping claw (22) and the second clamping claw (23) are respectively arranged in a first clamping claw groove (211) and a second clamping claw groove (212) in two clamping boxes (21); the first return spring (24) is arranged in the spring groove (213); the first clamping claw (22) and the second clamping claw (23) are in an inverted L shape, and one end of each of the first clamping claw (222, 232) and the second clamping claw (233) are formed with a longitudinal protrusion (222, 232) and a transverse protrusion (223, 233) that are turned at a right angle; the longitudinal protrusions (222, 232) are respectively inserted into a first guide groove (251) and a second guide groove (261) on the first clamping claw opening and closing key and the second clamping claw opening and closing key; the first guide groove (251) and the second guide groove (261) are respectively inserted into the first guide groove (251) and the second guide groove (261) The length of the first claw (261) is greater than the length of the longitudinal protrusions (222, 232) of the first claw and the second claw, so that the longitudinal protrusions (222, 232) can move in the first guide groove (251) and the second guide groove (261), and push the first claw (22) and the second claw (23) to move, the two transverse protrusions (223, 233) are located at both ends of the spring groove (213), the two ends of the first return spring (24) are connected to the two transverse protrusions (223, 233), the free ends of the first claw (22) and the second claw (23) extend out of the card box (21), and the ends thereof are provided with hooks (224, 234) that turn inward.

6. The power distribution device capable of taking power in steps as claimed in claim 5, characterized in that: The first clamping claw opening and closing key (25) and the second clamping claw opening and closing key (26) are symmetrically arranged in the notches on both sides of the lower part of the clamping box (21), separated by a partition (214) in the middle, and a second reset spring (28) is installed in the spring hole (2141) on the partition, and the two ends of the second reset spring (28) are respectively connected to the first clamping claw opening and closing key (25) and the second clamping claw opening and closing key (26). When the first clamping claw opening and closing key (25) and the second clamping claw opening and closing key (26) are pushed inward, the first clamping claw (22) and the second clamping claw (23) are opened outward, and the first clamping claw (22) and the second clamping claw (23) are placed on the convex edge (511) of the busbar trough and the first clamping claw opening and closing key (25) and the second clamping claw opening and closing key (26) are released, so that the hooks (224, 234) can be locked on the convex edge (511).

7. The power distribution device capable of taking power in steps as claimed in claim 3, characterized in that: The step-by-step power extraction mechanism (30) is arranged at an upper portion of one side inside the main box (10), and comprises a power extraction portion (31) for connecting to a bus duct and an operating portion (32) for performing power extraction operations.

8. The power distribution device capable of taking power in steps according to claim 7, characterized in that: The power taking part (31) comprises a plurality of second conductive plates (311), a plurality of insulating plates (312) and a fixing seat (313); the plurality of second conductive plates (311) are connected to the plurality of insulating plates (312), and the upper ends thereof are against the elastic conductive copper plates (314) on one side of the insulating plates (312); the plurality of second conductive plates (311) and the elastic conductive copper plates (314) are arranged along the width direction of the main box (10) to form a second conductive plate group (31A) corresponding to the first conductive plate group (53A) in the bus duct; the second conductive plate group (31A), the plurality of insulating plates (312) and the plurality of elastic conductive copper plates (314) are arranged on the fixing seat (313); the fixing seat (313) is arranged on a bracket (315) connected to the main box; and the upper end of the second conductive plate group (31A) extends out of the main box (10).

9. The power distribution device capable of taking power in steps according to claim 7, characterized in that: The operating part (32) is connected to the lower side of the power taking part (31), and is provided with a connecting rod mechanism (321) for driving the power taking part to move up and down. The connecting rod mechanism (321) is connected to a connecting seat (322) fixed to the side wall of the main box body. The input end of the connecting rod mechanism (321) is connected to an operating handle (323). The main body of the operating handle (323) extends to the outside of the main box body (10). The output end of the connecting rod mechanism (321) is connected to a vertical lifting rod ( 324), the upper end of the lifting rod (324) is fixed to the bracket (315), and two guide columns (325) are fixed to the bracket (315), and the two guide columns (325) enter the bracket (315) upward. Under the action of the lifting rod (324), the bracket (315) can move up and down along the two guide columns (325) to connect or disconnect the second conductive plate group (31A) with the first conductive plate group (53A) in the bus duct to obtain power.

10. The power distribution device capable of taking power in steps according to claim 9, characterized in that: The connecting rod mechanism (321) comprises an active connecting rod (3211) and two pairs of driven connecting rods (3212, 3213), wherein the active connecting rod (3211) has three arms, wherein the first arm (3211A) is hinged to the operating handle (323) and rotates around a first pin shaft (3214) fixed on the side wall of the connecting seat (322), the second arm (3211B) is placed in a limiting groove (3221) at the top of the connecting seat, and the end of the third arm (3211C) is connected to the operating handle (323) by the second pin shaft (3214). 215) is hinged to two pairs of driven connecting rods (3212, 3213), one end of the driven connecting rod (3212) is hinged to the third pin shaft (3216), and the other end of the driven connecting rod (3213) is hinged to the lifting rod (324) of the operating part. When the operating handle (323) is pressed down or lifted up, the connecting rod mechanism (321) pushes the lifting rod (324) to move up and down, so that the second conductive plate group (31A) of the power taking mechanism is plugged into or disconnected from the first conductive plate group (53A) in the bus duct to take power.

11. The power distribution device capable of taking power in steps according to claim 1, characterized in that: The control mechanism (40) comprises a control unit (41), a power supply unit (42), an output unit (43) and a monitoring module (44), wherein the monitoring module (44) integrates a switching power supply (441), a current acquisition unit (442), a voltage acquisition unit (443), a monitoring unit (444), a communication interface unit (445) and a display screen (446); the control unit (41) is a circuit breaker, to which the power supply unit (42) and the output unit (43) are connected; the power supply unit (42) is electrically connected to the power supply part (31) of the step-by-step power supply mechanism; the output unit (43) is electrically connected to the power socket (61) or the industrial electrical connector (62) ), a switching power supply (441) is connected between the power taking unit (42) and the control unit (41), a current acquisition unit (442) and a voltage acquisition unit (443) are connected between the control unit (41) and the output unit (43), the current acquisition unit (442) and the voltage acquisition unit (443) are respectively electrically connected to the power taking part (31) of the step-by-step power taking mechanism, the current acquisition unit (442) and the voltage acquisition unit (443) are also respectively connected to a monitoring unit (444), the monitoring unit (444) is a single chip microcomputer, which is respectively connected to the switching power supply (441), the communication interface unit (445) and the display screen (446).

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