Power supply and distribution device capable of eliminating induced static electricity, creepage and electric leakage

Abstract

The invention relates to a power supply and distribution device capable of eliminating induced static electricity, creepage and electric leakage, and the design of a topological space mainly considers how to effectively control numerous external inductive components in a limited space so as to thoroughly eliminate the wonderful induced static electricity, creepage and electric leakage phenomena of a shell of the high-power power supply and distribution device. The power supply and distribution device is provided with the reactor made of amorphous alloy so as to reduce surge current; the compensation capacitor unit is arranged for improving the power factor of the system, and the multi-mode direct-current power supply high-speed switch supports the artificial intelligence technology. In order to facilitate mobile operation, the whole machine is provided with self-locking trundles, and the double-layer isolation plate can resist external strong electromagnetic interference, so that the equipotential anti-interference power supply and distribution device can be widely applied to a high-power power supply and distribution system of'source network load storage ', has good universality demonstration significance, and is very clear in application prospect.

Description

Technical Field

[0001] The present invention relates to a power supply and distribution device capable of eliminating induced static electricity, creepage current and leakage current. The power supply and distribution device is equipped with a multi-modal DC power supply high-speed switch supporting artificial intelligence technology, casters with self-locking function and a double-layer isolation board. The power supply and distribution device is not only convenient for movement, but also can resist strong external electromagnetic interference and can completely eliminate phenomena such as static electricity, creepage current and leakage current. Therefore, the power supply and distribution device with strong anti-interference has a strong universal demonstration significance. Background Art

[0002] The power supply and distribution device that can eliminate induced static electricity, creepage and leakage refers to a power supply and distribution device that works under high voltage and high current conditions. The device is equipped with a battery pack of multiple condensed high-voltage lithium batteries, a 380V three-phase rectifier circuit and a high-voltage charger, multiple DC / DC conversion modules, and a comprehensive power supply and distribution unit of a multi-function, multi-condition high-voltage control box. From the circuit point of view, there are both AC and DC in the working area; both high-voltage side and low-voltage side; both high-frequency circuits and low-frequency side; both high voltage and high current; which leads to many unexpected mixed cross-interferences and harmonic interferences during work. Among them, the hidden complexity in the device is like a ball that cannot bounce when it falls to the ground. Therefore, it is not surprising that the power supply and distribution unit based on multiple working conditions and high power generally has the intrusion of shell induced static electricity, air creepage and leakage.

[0003] Therefore, the biggest difficulty in implementing the power supply and distribution device is not how to realize the circuit, but because this type of circuit form is already quite mature. Therefore, the biggest difficulty in the design lies in the design of the three-dimensional topological space, that is, how to eliminate the inexplicable induced static electricity, creepage and leakage in the shell of the high-power power supply and distribution device under the condition of integrating many high-voltage switch devices in a limited space and controlling many external inductive components. The inventors and applicants believe that the causes of these induced static electricity, creepage and leakage are mainly caused by the following factors: 1. When the power supply and distribution unit controls multiple AC and DC inductive loads, the surge current will cause voltage distortion due to the presence of high-power inductive loads, especially at the moment of motor starting. The starting current is 4 to 8 times the normal working current. In severe cases, it will cause the zero point deviation of the midpoint voltage, and leakage that is harmful to personal safety or equipment will occur as expected, which usually causes the tripping response of the relay protection unit; 2. Due to the existence of high-power inductive loads, if there is no capacitive input compensation, the power factor of the system will inevitably be greatly reduced. The power factor is the ratio of actual power to apparent power. It reflects the efficiency of energy transmission in the circuit. Usually, a decrease in power factor means that the reactive power part of the circuit has increased. According to the law of conservation of energy, the additional excess reactive power will be released in the form of heat or leakage. 3. When the distributed parasitic capacitance on the high-voltage side and the low-voltage side of the power supply and distribution unit is under the joint action of electromagnetic induction, due to the coupling of the parasitic capacitance, it is very easy to generate a suspended potential to the ground. Therefore, these static charge distribution phenomena caused by the accumulation of charges on the surface of objects will naturally come unexpectedly. The characteristics of static electricity are that the voltage is very high, but the current is very small; the contact may cause a slight electric shock, but it will not endanger life; 4. The frequent switching of high-frequency and high-voltage switch components will also bring about obvious skin effect, which not only increases the switching loss and electromagnetic noise of the system, but also the higher the operating frequency of the switch components, the greater the voltage and current, the more obvious the skin effect and the more significant the leakage; 5. When the safety interval between adjacent power devices is insufficient due to the size of the housing and no special remedial measures are taken, the skin effect caused by the small installation distance will further increase the risk of housing inductive leakage and cause the baud rate in the CAN local area network to be distorted, resulting in communication failure on the CAN bus link; 6. In the past, the power supply and distribution devices that were prone to induction leakage had their shells and circuits not on the same equipotential plane. This is of course the most unfavorable grounding situation, because the shell is not simply grounded at multiple points on the equipotential plane, and it is very easy to form a loop between the bad closed loops to the ground, resulting in the offset of adjacent potentials and causing cross interference. This is also one of the main reasons for shell leakage; 7. The mismatch of the consistency of lithium battery cells will also cause the circulation of internal consumption of the battery pack. Since the negative feedback range of the external balancing circuit is limited, the voltage difference between the lithium battery packs cannot be eliminated, which will inevitably cause local heating of the battery cells and the shift of the potential of the adjacent batteries, thereby causing the shell to induct leakage; 8. In addition, high-power power supply and distribution equipment will inevitably bring high voltage and high current. Therefore, under the most unfavorable conditions, when the induced potential difference between adjacent conductive parts reaches the insulation strength that breaks down the air, the creepage voltage may also cause air ionization and arc discharge.

[0004] 9. Friction will also generate static electricity, and induced static electricity will not only make people feel uncomfortable when touching the shell, but excessive static electricity accumulation may also damage the integrated circuit, especially in flammable and explosive environments, high-voltage static electricity may also cause fire or explosion; creepage and leakage are concentrated manifestations of accidental leakage of current, and harmonic interference will also bring safety problems. In the past, electrical engineers basically used traditional relay protection methods for the problems of induced static electricity and leakage of the shell. However, this outdated relay protection measure also has its weaknesses. First, its millisecond-level response time makes people feel electric shock and numbness; second, the impact of voltage drop tolerance will cause the deviation of the midpoint potential of the circuit, resulting in false triggering of the relay protection device. It can be seen that the problem of shell induced leakage in power supply and distribution devices under high-power and complex working conditions is precisely due to the inability of traditional relay protection. At this time, it is necessary to take a multi-pronged and comprehensive approach. How to overcome surges from the power grid, improve the power factor of the system, reduce the impact of distributed capacitance, achieve equally effective single-point grounding between the casing and the circuit, eliminate the zero-point deviation of the midpoint voltage, cut off the leakage of the skin effect, control the creepage distance between adjacent conductive parts, and further improve the consistency of each battery cell in the battery pack is the best solution for power supply and distribution devices to prevent casing induced leakage.

[0005] In the application of the present invention patent, the inventor believes that the influence of creepage cannot be ignored. The so-called creepage distance refers to the shortest distance between two adjacent high-voltage conductive parts along the surface of the insulating material. Among them, how to open the installation distance of adjacent conductor parts is also one of the key measures to prevent creepage. The State Grid has clearly stipulated that the safety distance of 110 kv is 1.5 meters, the safety distance of 10kv is 0.7 meters, the relative safety distance of 380V is 25mm, and the safety distance from the human body is 35mm; the creepage safety distance of the 220V low-voltage line should be greater than 6.4mm, and the electrical gap between the primary and secondary of the power transformer should be greater than 4mm. However, the shell structure size of high-voltage and high-current power distribution devices is always limited. If the structure is limited and the safety distance cannot be met, how to prevent the induction of static electricity and leakage of the shell is also one of the focuses of the application of the present invention.

[0006] Based on this, the present invention application proposes a power supply and distribution device that can eliminate induced static electricity, creepage and leakage. The main feature of this power supply and distribution device is that it fully accepts the principle of system minimum and overall optimization in system engineering. It is unique in three-dimensional topology structure and ingenious in anti-inductive leakage protection circuit, and adopts multiple measures to improve system reliability and reduce cross-interference from the periphery.

[0007] In terms of topological structure, a reinforced square column structure is adopted, that is, the frame is composed of aluminum alloy columns with three grooves on all four sides, and the four ends of the aluminum alloy columns are respectively inserted into double-layer plug-in boards made of aluminum alloy; in the external circuit interface, only a 380V AC input socket, an output control socket based on the external DC / DC conversion module, an extended CAN FD local bus socket that can communicate with the host computer, and a standard CAN-based local bus socket that communicates with the device itself are simply arranged; the remaining components and the connecting wires between the components are all encapsulated and confined in the closed casing of the aluminum alloy column of the power supply and distribution device. Therefore, the system has excellent reliability, anti-interference and maintainability.

[0008] On the other hand, an equipotential scheme of a so-called common ground plane is adopted between the enclosed housing and the midpoint circuit. Each functional module drawer unit and the housing are regarded as having the same potential, and then the equipotential plane is connected to the ground plane with the shortest wire. Since the potentials of each point on the equipotential plane are the same and there is no potential difference, the electric field force usually does not do work when the charge is moved along the equipotential surface, ensuring that the current does not flow between these equipotentials. By connecting the equipotential plane to the ground plane at a single point, the possible circulation between the equipotential plane and the ground plane is eliminated. This parallel low-impedance grounding scheme greatly reduces the impedance of the ground wire and the high-frequency reflection and standing wave interference caused by the skin effect. In order to prevent possible distortion on the equipotential surface and effectively deal with the impact of surge current from the power grid, a reactor made of amorphous alloy is installed at the front end of the 380V AC input side; in order to effectively improve the power factor of the system, a supercapacitor group is installed at the rear end of the DC high-voltage output side after three-phase rectification; each functional module unit is placed inside the casing, and a 2mm air groove is opened to isolate the high-voltage side from the low-voltage side, thereby completely eliminating the risk of inductive leakage of the casing.

[0009] In the application of the patent for this invention, the unexpected gains are as follows: First, a lightweight aluminum profile frame composed of square columns is used to inadvertently solve the overweight problem of the system body; second, each functional circuit in the device and a multi-modal DC power supply high-speed switch supporting artificial intelligence technology all adopt equipotential surface technology, and then a copper bus is connected to the ground at a single point to solve the safety problem of induced static electricity and leakage of the device shell; third, a double-layer aluminum sheet isolation solution with heat dissipation ribs is adopted to solve the heat dissipation and anti-inductive interference in a strong electromagnetic environment; fourth, the built-in connectors in each functional drawer completely solve the reliability problem caused by the numerous connections inside the device; fifth, the operation of cooling fans and heating fans that support temperature changes is supported, and the safety ground wires of the cooling fans and heating fans are connected to the equipotential surface, which completely eliminates the influence of circulating current and ensures single-point grounding.

[0010] The ingenious design in the present invention application is to introduce a multi-modal DC power supply high-speed switch supporting artificial intelligence technology, thereby completely eliminating the induced static electricity, creepage and leakage phenomena that may be generated by high-power power supply and distribution devices in the bud. In this DC power supply high-speed switch circuit, there is an input digital current transformer and three output digital current transformers, so the switch can detect whether the input current and output current in the circuit are balanced with high sensitivity, so as to closely monitor the balance state of the total current to accurately determine whether there is leakage in the system. If there is no leakage, the vector sum of the total input and output currents is zero; if leakage occurs or there is a small leakage current, the balance of the current vector sum is broken. If the electric shock accident occurs, the high-speed power switch will quickly cut off the power supply, thereby preventing the occurrence of electric shock accidents at an ultra-fast speed, thereby achieving the purpose of zero-point leakage protection, thus providing a best solution to replace conventional high-power zero-point leakage protectors; obviously, this solution is also extremely beneficial for electric vehicles that are prone to explosions in the event of a collision accident; since the fast switch abandons the mechanical tripping mechanism and electromagnetic components with armatures used in traditional zero-point leakage protectors, all contact-free MOS tubes are used, and the microprocessor supports artificial intelligence operation, its response speed immediately increases from milliseconds to microseconds. Even if leakage occurs, the power supply has been cut off before the operator has time to react adversely.

[0011] In order to facilitate the normal movement of high-power power supply and distribution equipment, the device is also equipped with casters with self-locking function that can be adjusted up and down and rolled left and right. The caster tires are made of highly elastic soft rubber TPR material, which is insulated from the ground and is stable and will not deviate. Summary of the invention

[0012] The specific contents are as follows: A power supply and distribution device capable of eliminating induced static electricity, creepage and leakage, including: square columns, double-layer plug boards, single-layer plug boards, drawer crossbars, lithium battery pack units, AC380V three-phase rectifier drawer units, compensation capacitor drawer units, DC / DC conversion drawer units, electric control drawer units, central and local area network control drawer units, column right front upper baffle, column left front upper baffle, column right rear upper baffle, column left rear upper baffle, column left front lower baffle, column right front lower baffle, column left rear lower baffle, column right rear lower baffle, baffle support legs, casters, a multi-modal DC power supply high-speed switch supporting artificial intelligence technology, the key points of which are: The square column constitutes the main frame of a power supply and distribution device that can eliminate induced static electricity, creepage and leakage. The central part of the square column is provided with an inner circular hole, and the four sides of the square column are respectively provided with three outer grooves. The double-layer plug-in board with interlayer heat dissipation ribs is respectively an upper double-layer plug-in board, a right double-layer plug-in board, a left double-layer plug-in board, a rear double-layer plug-in board, and a bottom double-layer plug-in board, which are respectively inserted into two column outer embedding grooves of the square column. In particular, for assembly purposes, the front panel of the power supply and distribution device capable of eliminating induced static electricity, creepage and leakage is a single-layer plug-in board; The square column is used in conjunction with the following baffle accessories, namely, the right front upper baffle of the column, the left front upper baffle of the column, the right rear upper baffle of the column, the left rear upper baffle of the column, the left front lower baffle of the column, the right front lower baffle of the column, the left rear lower baffle of the column, and the right rear lower baffle of the column. Except for the right front upper baffle of the column and the left front upper baffle of the column, three baffle support legs extend from the four sides of each baffle accessory, which are respectively connected to the three column outer embedded grooves of the square column to enhance the mechanical strength of the square column; Only two baffle support legs extend from one side of the right front upper baffle plate of the column and the left front upper baffle plate of the column, wherein a right front upper baffle support leg notch of the column is present on the right front upper baffle plate of the column, and a left front upper baffle support leg notch of the column is present on the left front upper baffle plate of the column, so that the single-layer plug-in board of the front panel can be smoothly inserted along the notch of the right front upper baffle support leg of the column and the notch of the left front upper baffle support leg of the column; The drawer crossbar forms a drawer frame of a power supply and distribution device that can eliminate induced static electricity, creepage and leakage. Its functional drawer frame includes: AC380V three-phase rectifier drawer unit, compensation capacitor drawer unit, DC / DC conversion drawer unit, electric control drawer unit, central and local area network control drawer unit. Each drawer unit is pushed and pulled through the drawer groove on the drawer crossbar. The bottom lithium battery unit has no drawer structure, and the lithium battery module can be directly installed on the bottom double-layer plug-in board. In order to facilitate the push-pull installation of the drawer unit, each drawer unit is equipped with a drawer handle. The AC380V three-phase rectifier drawer unit is equipped with an amorphous alloy reactor to reduce surge current; The compensation capacitor drawer unit is specially designed to improve the power factor of the system; The front panel of the central and LAN control drawer unit has two four-core CAN sockets, which support standard CAN and extended CAN FD respectively, wherein the standard CAN communicates with the single-chip microcomputer and the extended CAN FD communicates with the host computer; Each drawer unit also has a protruding equipotential pile seat, that is, each functional drawer unit is not grounded, but the equipotential pile seats of the drawer units are directly connected and then uniformly connected to an explosion-proof junction box of a multi-mode DC power supply high-speed switch supporting artificial intelligence technology on the rear double-layer plug board (2-5), and then grounded separately; In this embodiment, the multi-mode DC power supply high-speed switch supporting artificial intelligence technology is installed on the rear double-layer plug board, becoming an excellent solution for a power supply and distribution device that can eliminate induced static electricity, creepage and leakage. The action time of the multi-mode DC power supply high-speed switch (11) supporting artificial intelligence technology is microseconds, which can completely replace the conventional millisecond-level high-power zero-point leakage protector. For this reason, the applicant and the inventor have applied for an invention patent for it on the same day and together with this invention application. The invention content and claims have been divided into cases, so no detailed three-dimensional graphics are specially drawn here, because its technical details have been fully presented in its patent application specification; The caster comprises a brake pedal, a brake contact, a caster mounting column, and an external thread of the mounting column, wherein the external thread of the mounting column on the caster mounting column can be screwed into the inner circular hole of the square column (1) through the left front lower baffle plate of the column, the right front lower baffle plate of the column, the left rear lower baffle plate of the column, and the right rear lower baffle plate of the column.

[0013] Furthermore, the square columns, double-layer plug boards, and drawer cross bars are all made of aluminum alloy.

[0014] Furthermore, the multi-modal DC power supply high-speed switch supporting artificial intelligence technology is a high-speed switch specially designed to eliminate tiny induced static electricity, creepage and leakage, and can replace high-power zero-point leakage protectors.

[0015] Furthermore, the tire part of the caster is made of highly elastic soft rubber TPR material, which has the characteristics of being insulated from the ground, stable and not deviating, and the brake pedal, brake contact point and caster mounting column are made of aluminum alloy castings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings only describe the embodiments of the present invention, and those skilled in the art can draw inferences from them and obtain other similar design drawings based on these drawings without creative work.

[0017] Figure 1 A power supply and distribution device that can eliminate induced static electricity, creepage and leakage Figure 1 ; Figure 2 Double-layer plug board and its cross-section; Figure 3 A power supply and distribution device that can eliminate induced static electricity, creepage and leakage Figure 2 ; Figure 4 A disassembly diagram of a power supply and distribution device that can eliminate induced static electricity, creepage and leakage; Figure 5 A square column and its cross-section; Figure 6 Drawer rail and its cross-section diagram; Figure 7 The appearance of the power supply and distribution device after removing the plug board Figure 1 ; Figure 8 Outline drawing of baffle on column; Fig. 9 The appearance of the power supply and distribution device after removing the plug board Figure 2 ; Fig.10 Outline drawing of the lower baffle of the column; Fig.11 The appearance of the power supply and distribution device after removing the plug board Figure 3 ; Fig.12 The appearance of the power supply and distribution device after removing the plug board Figure 4 ; Fig.13 Caster wheel outline drawing.

[0018] 1 Square column 1-1 Inner hole of column 1-2 Column external groove 2 double-layer plug-in board 2-1 Front single-layer board 2-2 Double-layer board on top 2-3 Double-layer plug board on the right side 2-4 Double-layer board on the left side 2-5 Double-layer plug board at the back 2-6 Bottom double-layer plug-in board 2-7 PCB interlayer heat dissipation ribs 3-1 Lithium battery pack unit 3-2 AC380V three-phase rectifier drawer unit 3-3 Compensation capacitor drawer unit 3-4 DC / DC conversion drawer unit 3-5 Electric control drawer unit 3-6 Central and LAN control drawer unit 3-7 Drawer handles 4 Drawer rails 4-1 Crossbar drawer slot 5-1 Right front upper baffle of column 5-1-1 Gap in the right front upper baffle support leg of the upright 5-2 Left front upper baffle of column 5-2-1 Gap in the left front upper baffle support leg of the column 5-3 Right rear upper baffle of column 5-4 Left rear upper baffle of column 5-5 Left front lower baffle of column 5-6 Right front lower baffle of column 5-7 Left rear lower baffle of column 5-8 Right rear lower baffle of column 5-10 Baffle support legs 10 Casters 10-1 Brake pedal 10-2 Brake contacts 10-3 Caster Mounting Column 10-4 Mounting column external thread 11 A multi-mode DC power high-speed switch supporting artificial intelligence technology DETAILED DESCRIPTION

[0019] The specific implementation of the present invention is described below in conjunction with the accompanying drawings: A power supply and distribution device capable of eliminating induced static electricity, creepage and leakage, comprising: a square column (1), a double-layer plug board (2), a single-layer plug board (2-1), a drawer cross bar (4), a lithium battery pack unit (3-1), an AC380V three-phase rectifier drawer unit (3-2), a compensation capacitor drawer unit (3-3), a DC / DC conversion drawer unit (3-4), an electric control drawer unit (3-5), a central and local area network control drawer unit (3-6), a column right front upper baffle (5-1), a column left front upper baffle (5-2), a column right rear upper baffle (5-3), a column left rear upper baffle (5-4), a column left front lower baffle (5-5), a column right front lower baffle (5-6), a column left rear lower baffle (5-7), a column right rear lower baffle (5-8), a baffle support leg (5-10), a caster (10), and a multi-modal DC power supply high-speed switch (11) supporting artificial intelligence technology, characterized in that: The square column (1) constitutes the main frame of a power supply and distribution device capable of eliminating induced static electricity, creepage current and leakage current. The central part of the square column (1) is provided with an inner column circular hole (1-1), and the four sides of the square column (1) are respectively provided with three outer column grooves (1-2); A double-layer plug board (2) with plug board interlayer heat dissipation ribs (2-7), including an upper double-layer plug board (2-2), a right-side double-layer plug board (2-3), a left-side double-layer plug board (2-4), a rear double-layer plug board (2-5), and a bottom double-layer plug board (2-6), which are respectively inserted into two column outer embedding grooves (1-2) of a square column (1). In particular, for assembly purposes, the front panel of the power supply and distribution device capable of eliminating induced static electricity, creepage current and leakage current is a single-layer plug board (2-1); The square column (1) is used in conjunction with the following baffle accessories, namely, a right front upper baffle (5-1) of the column, a left front upper baffle (5-2) of the column, a right rear upper baffle (5-3) of the column, a left rear upper baffle (5-4) of the column, a left front lower baffle (5-5) of the column, a right front lower baffle (5-6) of the column, a left rear lower baffle (5-7) of the column, and a right rear lower baffle (5-8) of the column. Except for the right front upper baffle (5-1) of the column and the left front upper baffle (5-2) of the column, three baffle support legs (5-10) extend from the periphery of each baffle accessory and are respectively connected to the three column outer embedded grooves (1-2) of the square column (1) to enhance the mechanical strength of the square column (1). Only two baffle support legs (5-10) extend from one side of the right front upper baffle plate (5-1) of the column and the left front upper baffle plate (5-2), wherein a right front upper baffle plate support leg notch (5-1-1) is present on the right front upper baffle plate (5-1), and a left front upper baffle plate support leg notch (5-2-1) is present on the left front upper baffle plate (5-2), so that the single-layer plug-in board (2-1) of the front panel can be smoothly inserted along the right front upper baffle plate support leg notch (5-1-1) and the left front upper baffle plate support leg notch (5-2-1); The drawer cross bar (4) forms a drawer frame of a power supply and distribution device capable of eliminating induced static electricity, creepage and leakage. The functional drawer frame comprises: an AC380V three-phase rectifier drawer unit (3-2), a compensation capacitor drawer unit (3-3), a DC / DC conversion drawer unit (3-4), an electric control drawer unit (3-5), and a central and local area network control drawer unit (3-6). Each drawer unit is installed by push-pull through a drawer groove (4-1) on the drawer cross bar (4). The bottom lithium battery pack unit (3-1) has no drawer structure, and the lithium battery pack module can be directly installed on the bottom double-layer plug-in board (2-6). In order to facilitate the push-pull installation of the drawer unit, each drawer unit is provided with a drawer handle (3-7). The AC380V three-phase rectifier drawer unit (3-2) is equipped with an amorphous alloy reactor to reduce surge current. The compensation capacitor drawer unit (3-3) is specially designed to improve the power factor of the system; The front panel of the central and local area network control drawer unit (3-6) is provided with two four-core CAN sockets, which respectively support standard CAN and extended CAN FD, wherein the standard CAN communicates with the single-chip microcomputer, and the extended CAN FD communicates with the host computer; Each drawer unit also has a protruding equipotential pile seat, that is, each functional drawer unit is not grounded, but the equipotential pile seats of the drawer units are directly connected and then uniformly connected to an explosion-proof junction box of a multi-modal DC power supply high-speed switch (11) supporting artificial intelligence technology on the rear double-layer plug board (2-5), and then grounded separately; In this embodiment, the multi-modal DC power supply high-speed switch (11) supporting artificial intelligence technology is installed on the rear double-layer plug board (2-5), becoming an excellent solution for a power supply and distribution device that can eliminate induced static electricity, creepage and leakage. The action time of the multi-modal DC power supply high-speed switch (11) supporting artificial intelligence technology is microseconds, which can completely replace the conventional millisecond-level high-power zero-point leakage protector. For this reason, the applicant and the inventor have applied for an invention patent for it on the same day and together with this invention application. The invention content and claims have been divided into two cases, so no detailed three-dimensional graphics are specially drawn here, because its technical details have been fully presented in its patent application specification; The caster (10) comprises a brake pedal (10-1), a brake contact (10-2), a caster mounting column (10-3), and a mounting column external thread (10-4), wherein the mounting column external thread (10-4) on the caster mounting column (10-3) can be screwed into the column inner circular hole (1-1) of the square column (1) through the column left front lower baffle (5-5), the column right front lower baffle (5-6), the column left rear lower baffle (5-7), and the column right rear lower baffle (5-8), respectively.

[0020] Furthermore, the square column (1), the double-layer plug board (2), and the drawer cross bar (4) are all made of aluminum alloy.

[0021] Furthermore, the multi-modal DC power supply high-speed switch (11) supporting artificial intelligence technology is a high-speed switch specially designed to eliminate tiny induced static electricity, creepage and leakage, and can completely replace high-power zero-point leakage protectors.

[0022] Furthermore, the tire portion of the caster (10) is made of a highly elastic soft-rubber TPR material, which is insulated from the ground and stable and does not deviate. The brake pedal (10-1), the brake contact point (10-2), and the caster mounting column (10-3) are made of aluminum alloy castings.

[0023] Beneficial Effects In summary, the power supply and distribution device proposed by the present invention can eliminate induced static electricity, creepage and leakage: First, the applicant and inventor of the present invention actively and consciously introduced the concept of ring ratio in the topological space, because how to eliminate induced static electricity, creepage and leakage seems to be a common sense problem. However, the applicant and inventor of the present invention boldly proposed a feasible solution: starting from its adaptation boundary, it proposed how to eliminate the influence of induced static electricity, creepage and leakage with a low-cost and high-reliability method. Based on this, the most substantial improvement of the present invention application is to solve how to make the known technology produce an unexpected innovative effect by re-empowering it.

[0024] Among them, how to improve the power factor of the system, realize the effective single-point grounding of the shell, eliminate the zero deviation of the midpoint voltage, cut off the leakage of the skin effect, and control the creepage distance between adjacent conductive parts, is the best solution to prevent high-power, high-voltage and high-current power supply and distribution units. Because the creepage distance refers to the shortest distance between two adjacent high-voltage conductive parts along the surface of the insulating material, among which the installation distance of the adjacent conductor parts is also one of the key measures to prevent creepage. Therefore, the State Grid has clearly stipulated that the safety distance of 10kv is 0.7 meters, the safety distance of 110 kv is 1.5 meters, the relative safety distance of 380V is 25mm, and the safety distance from the human body is 35mm; the creepage safety distance of the 220V low-voltage line should be greater than 6.4mm, and the electrical gap between the primary and secondary of the power transformer should be greater than 4mm. However, how to prevent the inductive leakage of the shell when the structural size of the power supply and distribution unit is limited and the structural restrictions cannot meet the safety distance, then the influence of the distributed capacitance induction is broken by grooving and walling, which is one of the focuses of the application of the present invention.

[0025] Especially when there are multiple AC and DC inductive load outputs in the power supply and distribution unit, due to the presence of high-power inductive loads, its surge current will cause voltage distortion, thereby greatly reducing the power factor of the system, especially in the absence of capacitive power input compensation. At this time, multiple grounding occurs or the zero point deviation of the midpoint voltage occurs, which in turn causes the relay protection device to misjudge and fail. At this time, the distributed parasitic capacitance on the high-voltage side and the low-voltage side is very easy to generate a floating potential to the ground under the action of electromagnetic induction, so the induced electricity phenomenon comes unexpectedly; on the other hand, the frequent switching of high-voltage switch components will bring about the skin effect, which not only increases the switching loss and electromagnetic noise of the system, but also in the open pattern where the high-voltage switch components are not shielded, the higher the operating frequency of the switch components, the more obvious the skin effect, and the more significant the leakage; more importantly, the safety interval between adjacent power devices is not enough due to the limitation of the shell size. The skin creepage voltage caused by the small safety distance further increases the risk of shell electrification. Under the most unfavorable conditions, when the induced potential difference reaches the insulation strength of its air breakdown, arc discharge may also occur.

[0026] Therefore, the multi-pronged approach proposed by the present invention is specifically manifested in: First, in this embodiment, a power supply and distribution device that can eliminate induced static electricity, creepage current and leakage current has made a good combination design between the cabinet and the box, among which the square columns with three slots on each side provide a good structural frame; secondly, the drawer cross bar provides a good mechanical strength guarantee for the placement of various functional drawer units, and its tensile strength and torque resistance are confirmed by finite element analysis models and vibration table experiments, ensuring that the system is the most economical and the overall optimal, and the structure fully meets the requirements of vibration resistance and impact resistance.

[0027] Secondly, the present invention completely solves the problems of induced static electricity, creepage and leakage by means of grooving and pillars. All drawer units operate independently, and high-power energy transmission adopts copper busbar wiring, and all is unidirectional, thereby maximally solving the inherent electromagnetic crosstalk problem between lines brought by the power supply and distribution device.

[0028] Thirdly, the invention application also effectively solves the problems of skin effect and creepage caused by high frequency, high voltage and high current environment. The double-layer plug-in board and the slotted topology structure effectively destroy the strength of electrostatic induction, reduce the sensitivity of electromagnetic interference (EMI), and effectively help customers solve the demand for electromagnetic immunity (EMS).

[0029] Fourthly, the present invention also makes a useful attempt in cooling. The heat dissipation of high-power devices is a very vexing problem for engineers and technicians in this field. The present invention solves the heat dissipation problem smoothly through a double-layer aluminum alloy plug plate with ribs.

[0030] Fifth, the present invention application proposes a LAN management concept based on the CAN FD bus, so that each independent functional drawer unit finds a common information flow and control channel, and solves the contradiction between the transmission rate and the transmission byte between them. What is particularly meaningful is that there are no signal indicator lights on all the functional drawer units, but the functions are extended through the external CAN FD vehicle-mounted LAN bus connector. The large data packet structure, variable baud rate and non-destructive CAN bus arbitration technology have further improved the robustness and communication efficiency of the system, which just reflects the charm of innovation, that is, public knowledge and common sense are foreseeable, but innovation is often unforeseeable.

[0031] Sixth, the present invention application has also taken great pains to overcome multi-point grounding. The concept of equipotential is extended to the extreme through a multi-modal DC power supply high-speed switch that supports artificial intelligence technology, thereby successfully solving the leakage problem caused by the circulating current brought about by multi-point grounding.

[0032] Seventh, it is particularly pointed out that the last line of defense of the power supply and distribution device for eliminating induced static electricity, creepage and leakage proposed in the present invention application is to install a multi-modal DC power supply high-speed switch supporting artificial intelligence technology on the rear double-layer plug-in board, thereby providing an optimal solution to replace the conventional high-power zero-point leakage protector. This instantaneous high-power fast switch not only supports artificial intelligence, but also supports CAN bus local area network and WiFi remote control, and completely abandons the mechanical tripping mechanism and electromagnetic components with armature used in traditional zero-point leakage protectors. All of them use contactless MOS tubes, and their response speed is increased from the traditional millisecond level to the microsecond level. Even if leakage occurs, the charge will not have time to accumulate, and even when the operator has no time to produce adverse reactions, the power supply has been cut off; therefore, the applicant and the inventor now use "a multi-modal DC power supply high-speed switch supporting artificial intelligence technology" as a divisional solution of the present invention, and apply for a patent on the same day, so no detailed three-dimensional graphics of the high-power zero-point leakage protector are specially drawn in this application, because its technical details have been fully displayed in its patent application specification.

[0033] In summary, this specification only describes the implementation scheme of the present invention through an implementation example of a power supply and distribution device that can eliminate induced static electricity, creepage and leakage, which can be used to help others understand the core idea of ​​the present invention, and should not be understood as a limitation on the application of the present invention. Those skilled in the art understand that various changes made to the present invention in form and detail without departing from the spirit and scope of the present invention defined in the attached claims specification are within the scope of protection of the present invention.

Claims

1. A power supply and distribution device capable of eliminating induced static electricity, creepage and leakage, comprising: A square column (1), a double-layer plug board (2), a single-layer plug board (2-1), a drawer cross bar (4), a lithium battery pack unit (3-1), an AC380V three-phase rectifier drawer unit (3-2), a compensation capacitor drawer unit (3-3), a DC / DC conversion drawer unit (3-4), an electric control drawer unit (3-5), a central and local area network control drawer unit (3-6), a column right front upper baffle (5-1), a column left front upper baffle (5-2), a column right rear upper baffle (5-3), a column left rear upper baffle (5-4), a column left front lower baffle (5-5), a column right front lower baffle (5-6), a column left rear lower baffle (5-7), a column right rear lower baffle (5-8), a baffle support leg (5-10), a caster (10), and a multi-modal DC power supply high-speed switch (11) supporting artificial intelligence technology, characterized in that: The square column (1) constitutes the main frame of a power supply and distribution device capable of eliminating induced static electricity, creepage current and leakage current. The central part of the square column (1) is provided with an inner column circular hole (1-1), and the four sides of the square column (1) are respectively provided with three outer column grooves (1-2); A double-layer plug board (2) with plug board interlayer heat dissipation ribs (2-7), including an upper double-layer plug board (2-2), a right-side double-layer plug board (2-3), a left-side double-layer plug board (2-4), a rear double-layer plug board (2-5), and a bottom double-layer plug board (2-6), which are respectively inserted into two column outer embedding grooves (1-2) of a square column (1). In particular, for assembly purposes, the front panel of the power supply and distribution device capable of eliminating induced static electricity, creepage current and leakage current is a single-layer plug board (2-1); The square column (1) is used in conjunction with the following baffle accessories, namely, a right front upper baffle (5-1) of the column, a left front upper baffle (5-2) of the column, a right rear upper baffle (5-3) of the column, a left rear upper baffle (5-4) of the column, a left front lower baffle (5-5) of the column, a right front lower baffle (5-6) of the column, a left rear lower baffle (5-7) of the column, and a right rear lower baffle (5-8) of the column. Except for the right front upper baffle (5-1) of the column and the left front upper baffle (5-2) of the column, three baffle support legs (5-10) extend from the periphery of each baffle accessory and are respectively connected to the three column outer embedded grooves (1-2) of the square column (1) to enhance the mechanical strength of the square column (1). Only two baffle support legs (5-10) extend from one side of the right front upper baffle plate (5-1) of the column and the left front upper baffle plate (5-2), wherein a right front upper baffle plate support leg notch (5-1-1) is present on the right front upper baffle plate (5-1), and a left front upper baffle plate support leg notch (5-2-1) is present on the left front upper baffle plate (5-2), so that the single-layer plug-in board (2-1) of the front panel can be smoothly inserted along the right front upper baffle plate support leg notch (5-1-1) and the left front upper baffle plate support leg notch (5-2-1); The drawer cross bar (4) forms a drawer frame of a power supply and distribution device capable of eliminating induced static electricity, creepage and leakage. The functional drawer frame comprises: an AC380V three-phase rectifier drawer unit (3-2), a compensation capacitor drawer unit (3-3), a DC / DC conversion drawer unit (3-4), an electric control drawer unit (3-5), and a central and local area network control drawer unit (3-6). Each drawer unit is installed by push-pull through a drawer groove (4-1) on the drawer cross bar (4). The bottom lithium battery pack unit (3-1) has no drawer structure, and the lithium battery pack module can be directly installed on the bottom double-layer plug-in board (2-6). In order to facilitate the push-pull installation of the drawer unit, each drawer unit is provided with a drawer handle (3-7). The AC380V three-phase rectifier drawer unit (3-2) is equipped with an amorphous alloy reactor to reduce surge current. The compensation capacitor drawer unit (3-3) is specially designed to improve the power factor of the system; The front panel of the central and local area network control drawer unit (3-6) is provided with two four-core CAN sockets, which respectively support standard CAN and extended CAN FD, wherein the standard CAN communicates with the single-chip microcomputer, and the extended CAN FD communicates with the host computer; Each drawer unit also has a protruding equipotential pile seat, that is, each functional drawer unit is not grounded, but the equipotential pile seats of the drawer units are directly connected and then uniformly connected to an explosion-proof junction box of a multi-modal DC power supply high-speed switch (11) supporting artificial intelligence technology on the rear double-layer plug board (2-5), and then grounded separately; In this embodiment, the multi-modal DC power supply high-speed switch (11) supporting artificial intelligence technology is installed on the rear double-layer plug board (2-5), becoming an excellent solution for a power supply and distribution device that can eliminate induced static electricity, creepage and leakage. The action time of the multi-modal DC power supply high-speed switch (11) supporting artificial intelligence technology is microseconds, which can completely replace the conventional millisecond-level high-power zero-point leakage protector. For this reason, the applicant and the inventor have applied for an invention patent for it on the same day and together with this invention application. The invention content and claims have been divided into two cases, so no detailed three-dimensional graphics are specially drawn here, because its technical details have been fully presented in its patent application specification; The caster (10) comprises a brake pedal (10-1), a brake contact (10-2), a caster mounting column (10-3), and a mounting column external thread (10-4), wherein the mounting column external thread (10-4) on the caster mounting column (10-3) can be screwed into the column inner circular hole (1-1) of the square column (1) through the column left front lower baffle (5-5), the column right front lower baffle (5-6), the column left rear lower baffle (5-7), and the column right rear lower baffle (5-8), respectively.

2. The power supply and distribution device capable of eliminating induced static electricity, creepage and leakage according to claim 1, characterized in that: The square column (1), the double-layer plug board (2), and the drawer cross bar (4) are all made of aluminum alloy.

3. The power supply and distribution device capable of eliminating induced static electricity, creepage and leakage according to claim 1, characterized in that: The multi-mode DC power supply high-speed switch (11) supporting artificial intelligence technology is a high-speed switch specially designed to eliminate tiny induced static electricity, creepage and leakage, and can completely replace high-power zero-point leakage protectors.

4. The power supply and distribution device capable of eliminating induced static electricity, creepage and leakage according to claim 1, characterized in that: The tire portion of the caster (10) is made of a highly elastic soft-rubber TPR material, which is insulated from the ground and stable without deviation. The brake pedal (10-1), the brake contact point (10-2), and the caster mounting column (10-3) are made of aluminum alloy castings.

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