A high security distributed power supply

Abstract

This invention discloses a highly safe distributed power supply for use in the power supply field. When an anomaly is detected, the control chip first drives the two-stage adapter to pneumatically separate, achieving rapid power-off. The inclined rope synchronously rotates the self-deflecting adapter, thereby achieving misalignment and separation of the conductive post and conductive concave plate, effectively extending the creepage distance and reducing the risk of secondary connection. In the event of an extreme fault, secondary inflation can be triggered, ejecting the entire movable side connector to achieve irreversible absolute physical isolation, thus directly separating it from the hazard source and directly isolating the risk of secondary connection. This invention greatly improves the safety and reliability of the distributed power supply through a multi-level safety response, from rapid separation and power-off to misalignment isolation and active expulsion.

Description

Technical Field

[0001] This invention relates to the field of power supply, and in particular to a highly secure distributed power supply. Background Technology

[0002] With the development of the new energy industry and power electronics technology, the application of distributed power systems (such as battery energy storage systems, vehicle power battery packs, and data center backup power supplies) is becoming increasingly widespread. These systems are typically composed of multiple battery modules or energy units connected in series, parallel, or mixed configurations, and their safety and reliability are crucial to their large-scale application. However, if these systems fail to promptly and thoroughly disconnect the fault point when abnormal conditions such as overcurrent, short circuit, or thermal runaway occur, the fault range will expand, potentially leading to serious safety accidents such as fires or explosions.

[0003] Currently, the industry mainly relies on the following types of technologies for the safety protection of power supply systems:

[0004] The first category consists of protection devices based on electrical signals, such as fuses, circuit breakers, and solid-state switches. For example, Chinese patent application CN106026045A discloses a method for handling cable line faults involving distributed power sources. The second category involves disconnecting the cable based on physical isolation, such as a cable safety cover capable of emergency disconnection disclosed in Chinese patent application CN112186705A. This typically uses electromagnets, motors, or other driving mechanisms to physically separate the conductive plug from the power supply interface. These solutions offer a higher degree of isolation compared to purely electrical switches.

[0005] However, these systems still suffer from incomplete isolation. Limited by the travel and space of the mechanism, the distance between the separated conductive contacts is limited. Under conditions of high system voltage, strong electromagnetic interference, or mechanical vibration, this air gap may still break down, or vibration may cause the contacts to accidentally re-engage, creating a risk of secondary contact. Especially in some extreme faults (such as thermal runaway), due to the small air gap, an accidental secondary contact can easily lead to fire, explosion, and other hazards. Summary of the Invention

[0006] The core of this invention lies in the use of an adapter on a distributed power source. When an anomaly triggers physical separation, the conductive post and conductive recess can automatically separate, effectively extending the creepage distance and reducing the risk of secondary connection, thus addressing the safety hazards caused by short air gaps in existing technologies. Furthermore, after the fault is cleared, the adapter can be automatically or manually reset for reuse. In the event of extreme power source failures, the moving connector can be completely pushed away from the stationary connector in a destructive manner, achieving complete physical separation and directly isolating the possibility of secondary connection, significantly reducing safety hazards.

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A high-safety distributed power supply includes a power supply body with a charging interface and a discharging interface. Both the charging interface and the discharging interface are electrically connected to adapters. Each adapter includes a fixed connector that plugs into the charging interface or the discharging interface, a moving connector that matches the fixed connector, and two arm rings that are fixedly connected to the outer walls of the fixed connector and the moving connector at their respective close ends. The moving connector and the fixed connector at their respective close ends are provided with conductive posts and conductive recesses that match each other. Each of the two arm rings at their respective close ends has an annular groove. An air ring is placed between the two annular grooves. An inflation tube is fixedly connected to the outer end of the air ring. The end of the inflation tube connected to the air ring movably passes through the arm ring on the fixed connector. An air pump is connected to the inflation tube. A control chip is integrated on the fixed connector. The air pump and the sensor group built into the distributed power supply are both signal-connected to the control chip.

[0009] Two guide rods and two auxiliary reset rods move through the two arm rings. The two guide rods and two auxiliary reset rods intersect each other and are evenly spaced. The guide rods and auxiliary reset rods also move through the air rings, and the surfaces of the ends of the two auxiliary reset rods that are close to each other abut against the two arm rings respectively.

[0010] Furthermore, the two arm rings are in contact with each other, and the middle rod-shaped structure of the reset rod is made of a highly resilient material, and the length of the rod-shaped structure is greater than the total thickness of the two arm rings. The middle rod-shaped structure of the guide rod is made of a rigid material, and the length of the rod-shaped structure is greater than the total length of the two arm rings.

[0011] Furthermore, the radial width of the gas ring is smaller than the width of the annular groove, and the gas ring is made of an elastic sealing material, with the two arm rings in contact with each other.

[0012] Optionally, three conductive posts and three conductive recesses are provided, corresponding to the neutral wire, live wire and ground wire respectively. The fixed connector is rotatably connected to the end near the moving connector, and the gas ring is sleeved on the self-deflection connector. Multiple oblique ropes are fixedly connected between the self-deflection connector and the arm ring on the moving connector. Multiple conductive recesses are installed on the self-deflection connector, and a wrapping layer is fixedly connected to the end of the self-deflection connector.

[0013] Furthermore, multiple inclined ropes are located inside the air ring, and the inclined ropes are made of non-elastic material. The radial angular deviation between the two ends of the inclined rope is not less than the angle between the two sides of the conductive concave plate and the axis of the self-deflection joint. When the radial line connecting the two ends of the inclined rope intersects the axis of the self-deflection joint, the conductive post and the conductive concave plate are completely misaligned.

[0014] Furthermore, the length of the rod-shaped structure in the middle of the guide rod is greater than the distance between the two arm rings at their farthest ends, and the distance difference is not less than the thickness of the conductive post; the length of the rod-shaped structure in the middle of the reset rod is less than the distance between the two arm rings at their farthest ends.

[0015] Furthermore, the wrapping layer is made of elastic insulating material and is filled with insulating oil.

[0016] Furthermore, the self-deflecting joint and the fixed joint are connected by an electric rotating ring, and the maximum rotation stroke of the self-deflecting joint is no more than 120°. When the self-deflecting joint is at the limit position on one side of the rotation stroke, the conductive post and the conductive concave plate coincide.

[0017] Optionally, the guide rod has a two-section structure, and the two adjacent ends are U-shaped structures, which are interlocked with each other.

[0018] Furthermore, the outer surface of the middle part of the reset rod is pre-cracked, and the inside of the middle part of the reset rod is drilled with a through-hole. An inner spring rope is fixedly connected between the left and right inner walls of the through-hole. The diameter of the inner spring rope does not exceed 1 / 3 of the diameter of the middle part of the reset rod.

[0019] Compared with the prior art, the advantages of this invention are:

[0020] (1) This solution sets up an adapter on the distributed power supply. When the two triggers physically separate in case of an abnormality, the conductive post and the conductive concave plate can be automatically separated, which can effectively extend the creepage distance and reduce the risk of secondary connection. This solves the safety hazards caused by the short air gap in the prior art. At the same time, after the fault is eliminated, the adapter can be automatically and manually or automatically reset to achieve reuse.

[0021] (2) When encountering extreme power supply failure, the moving connector can be completely pushed away from the fixed connector in a destructive manner, so that the two are completely physically separated, directly isolating the possibility of secondary connection, greatly reducing the possibility of the fault on the power supply body expanding, and effectively reducing safety hazards. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is a perspective view of the present invention from another angle;

[0024] Figure 3 This is a schematic diagram of the segmented adapter of the present invention;

[0025] Figure 4 This is a perspective view of the segmented adapter of the present invention when the two sections are separated by inflation.

[0026] Figure 5 This is an exploded view of the present invention;

[0027] Figure 6 A partial exploded view of the segmented adapter of the present invention with the addition of a self-deflection joint;

[0028] Figure 7 A partial schematic diagram showing the separation and deflection of the segmented adapter of the present invention after the addition of a self-deflection connector.

[0029] Figure 8 A three-dimensional schematic diagram of the segmented adapter of the present invention, showing the separation and deflection from another angle after the addition of a self-deflection connector;

[0030] Figure 9 This is a schematic diagram of the self-deflecting joint of the present invention automatically deflecting with the expansion of the gas ring.

[0031] Figure 10 This is a cross-sectional comparison of the conductive post and conductive concave sheet before and after deflection separation according to the present invention;

[0032] Figure 11 This is a schematic diagram of the guide rod of the present invention when it is designed in segments;

[0033] Figure 12 This is a front view of the reset lever of the present invention.

[0034] Explanation of the labels in the diagram:

[0035] 1 Power supply body, 21 Charging interface, 22 Discharging interface, 31 Fixed connector, 32 Moving connector, 301 Conductive post, 302 Conductive concave plate, 33 Arm ring, 34 Self-deflection connector, 41 Guide rod, 42 Assisted reset rod, 401 Pre-crack, 402 Through-hole, 403 Inner elastic rope, 51 Air ring, 52 Inflation tube, 6 Inclined rope, 7 Wrapping layer. Detailed Implementation

[0036] The technical solutions will now be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention.

[0037] First implementation method:

[0038] Figures 1-2 As shown, a high-security distributed power supply includes a power supply body 1, which is provided with a charging interface 21 and a discharging interface 22. Both the charging interface 21 and the discharging interface 22 are electrically connected to adapters 3, such as... Figure 3 and Figure 4The adapter 3 includes a fixed connector 31 that is plugged into the charging interface 21 or the discharging interface 22, a movable connector 32 that matches the fixed connector 31, and two arm rings 33 that are fixedly connected to the outer walls of the fixed connector 31 and the movable connector 32 at their respective close ends. The movable connector 32 and the fixed connector 31 are respectively provided with a conductive post 301 and a conductive concave plate 302 at their respective close ends. The conductive post 301 and the conductive concave plate 302 are respectively connected to the movable connector 32 and the fixed connector 31 and are matched with each other. The two arm rings 33 are each chiseled with an annular groove at their respective close ends. An air ring 51 is placed between the two annular grooves. An inflation tube 52 is fixedly connected to the outer end of the air ring 51. The end of the inflation tube 52 connected to the air ring 51 movably passes through the arm ring 33 on the fixed connector 31.

[0039] Two guide rods 41 and two auxiliary reset rods 42 are movably connected between the two arm rings 33. The two guide rods 41 and the two auxiliary reset rods 42 are intersecting each other and equally spaced. The guide rods 41 and the auxiliary reset rods 42 also movably connect through the air ring 51. The guide rods 41 are mainly used for guidance, so that the moving connector 32 is not prone to positional displacement when it moves away from or near the fixed connector 31. This effectively ensures stable contact between the conductive post 301 and the conductive concave plate 302, allowing for stable reset after abnormal disconnection. The surfaces of the two auxiliary reset rods 42 that are close to each other abut against the two arm rings 33, so that the two auxiliary reset rods 42 can press the fixed connector 31 and the moving connector 32, making the connection between the conductive post 301 and the conductive concave plate 302 relatively tight and not easy to loosen. This effectively ensures the stable charging and discharging of this distributed power supply.

[0040] The two arm rings 33 are in contact with each other, and the middle rod-shaped structure of the reset rod 42 is made of a highly resilient material. The length of the rod-shaped structure is greater than the total thickness of the two arm rings 33, which effectively ensures the stable connection of the fixed connector 31 and the moving connector 32 when the power supply is normal. At the same time, after the fault of the power supply body 1 is eliminated, when the air pump reverses the air flow and releases the gas in the air ring 51, the fixed connector 31 and the moving connector 32 can be automatically reset under the restoring elasticity of the reset rod 42. The rod-shaped structure in the middle of the guide rod 41 is made of a rigid material, and the length of the rod-shaped structure is greater than the total length of the two arm rings 33. The guide rod 41 is mainly used for guidance. Its long length can provide a certain space for the moving connector 32 to be away from the fixed connector 31, so as to realize automatic disconnection when the distributed power supply is abnormal.

[0041] The radial width of the gas ring 51 is smaller than the width of the annular groove, and the gas ring 51 is made of elastic sealing material. The two arm rings 33 are in contact with each other, making their radial width relatively small. When the volume automatically shrinks after venting, it is not easy for them to be embedded between the edges of the fixed joint 31 and the moving joint 32, thus affecting their reset.

[0042] like Figure 5An air pump is connected to the inflation tube 52, and a control chip is integrated on the fixed connector 31. The air pump and the sensor group built into the distributed power supply are both connected to the control chip. When the built-in sensor group of this power supply detects an abnormality, the abnormal signal can be fed back to the control chip. At this time, the control chip can control the air pump to start, inflate the air ring 51, and thus push it outward from the moving connector 32, away from the fixed connector 31. This causes the conductive post 301 and the conductive concave plate 302 to disconnect, thereby temporarily disconnecting the charging interface and discharging interface of this power supply. On the one hand, it stops its operation, effectively preventing the fault from continuing to develop and expand. On the other hand, it disconnects the connection with the load and the equipment charging it, effectively preventing the fault from affecting the load equipment and the charging equipment, and reducing the scope of the fault impact.

[0043] This implementation method only realizes the basic function of automatically disconnecting the charging port and discharging port in the event of a power failure, and is suitable for distributed power sources with low power.

[0044] Second implementation method:

[0045] Based on the first embodiment, this embodiment adds an oblique rope 6 and a wrapping layer 7, so that when disconnected, it can automatically drive the conductive post 301 and the conductive concave piece 302 to misalign, so that they are not relatively separated, but misaligned, thereby effectively increasing the creepage distance and reducing the occurrence of automatic secondary reconnection after disconnection. The rest is consistent with the first embodiment.

[0046] like Figure 6 Three conductive posts 301 and three conductive recesses 302 are provided, corresponding to the neutral wire, the live wire and the ground wire respectively. The fixed connector 31 is rotatably connected to a self-deflecting connector 34 near the moving connector 32, and an air ring 51 is sleeved on the self-deflecting connector 34. Multiple oblique ropes 6 are fixedly connected between the self-deflecting connector 34 and the arm ring 33 on the moving connector 32. Multiple conductive recesses 302 are installed on the self-deflecting connector 34. A wrapping layer 7 is also fixedly connected to the end of the self-deflecting connector 34. The wrapping layer 7 is made of elastic insulating material and is filled with insulating oil.

[0047] The maximum rotational stroke of the self-deflecting connector 34 is no more than 120°. When the self-deflecting connector 34 is at the limit position on one side of the rotational stroke, the conductive post 301 and the conductive concave plate 302 coincide.

[0048] Multiple inclined ropes 6 are located inside the air ring 51, and the inclined ropes 6 are made of non-elastic material. The radial angle deviation between the two ends of the inclined ropes 6 is not less than the angle between the two sides of the conductive concave plate 302 and the axis of the self-deflection connector 34. This effectively ensures that when the inclined ropes 6 are straightened by force, their deflection angle is greater than the distribution range of the conductive concave plate 302. This effectively ensures that the conductive post 301 and the conductive concave plate 302 are completely misaligned at this time. When the radial line connecting the two ends of the inclined ropes 6 intersects the axis of the self-deflection connector 34, that is, when the line coincides with one of the radial radii of the self-deflection connector 34, the conductive post 301 and the conductive concave plate 302 are completely misaligned.

[0049] It is worth noting that, in order to facilitate the rotation of the self-deflecting connector 34, the connecting conductive recess 302 inside the fixed connector 31 and the wire at the socket are selected as spiral wires.

[0050] The length of the rod-shaped structure in the middle of the guide rod 41 is greater than the distance between the two arm rings 33 at their farthest ends, and the distance difference is not less than the thickness of the conductive post 301. The length of the rod-shaped structure in the middle of the auxiliary reset rod 42 is less than the distance between the two arm rings 33 at their farthest ends. This allows the auxiliary reset rod 42 to press down on the two fixed connectors 31 during normal operation, thereby ensuring stable contact between the conductive post 301 and the conductive concave plate 302, and enabling the power supply to charge and discharge stably. At the same time, under the guidance of the auxiliary reset rod 42, the moving connector 32 still has a certain amount of space to move away from the fixed connector 31.

[0051] like Figures 7-8 When the control chip receives a fault message from the power supply unit 1, and controls the air pump to inflate the air ring 51, the moving connector 32 moves away from the moving connector 32 along the guide rod 41. Figure 9 During this process, because the inclined rope 6 is tilted and rotates from the deflector joint 34 to the fixed joint 31, the pulling force of the moving joint 32 moving away from the fixed joint 31 causes the inclined rope 6 to gradually straighten from its tilt. During this process, the deflector joint 34 rotates synchronously with it. Figure 10 At this time, the multiple conductive recesses 302 on it deflect, thereby causing the conductive post 301 and the conductive recesses 302 to separate and simultaneously shift and misalign, so that the conductive post 301 and the conductive recesses 302 are no longer directly opposite each other, effectively extending the creepage distance and reducing the risk of secondary connection, so as to solve the safety hazards caused by the short air gap in the prior art.

[0052] At the same time, after misalignment, the air pump can be directly controlled to work in reverse to release air, thereby gradually resetting the moving connector 32. At this time, due to the misalignment of the conductive post 301 and the conductive concave piece 302, the conductive post 301 is aligned with the wrapping layer 7 and embedded in the wrapping layer 7, so that the conductive post 301 and the conductive concave piece 302 are isolated by the insulating layer formed by the wrapping layer 7, thereby reducing the risk of secondary connection. At this time, due to the limiting effect of the wrapping layer 7 and the reset rod 42, even if a large vibration occurs, it is difficult for the conductive post 301 and the conductive concave piece 302 to come into accidental contact.

[0053] In addition, after the maintenance personnel eliminate the fault of this power supply, the control chip receives the signal and can control the air pump to refill the air, so that the conductive post 301 is separated from the wrapping layer 7. Then, the on-site staff can manually adjust the self-deflection connector 34 to reset it, so that the inclined rope 6 tilts again. Then, the air is released, and under the restoring elasticity of the reset rod 42, the adapter 3 can be restored, thereby restoring the power supply to normal charging and discharging operation.

[0054] Because the air ring 51 blocks the direct contact with the self-deflection connector 34, but because the air ring 51 is elastic, it can be deformed. The operator can squeeze the air ring 51 and operate the self-deflection connector 34 through the air ring 51.

[0055] It is worth noting that the rotation mode between the self-deflection connector 34 and the fixed connector 31 can also be changed to electric rotation, that is, the rotation connection is achieved through an electric rotating ring. In case of an abnormality, the self-deflection connector 34 is also driven to rotate by the inclined rope 6. However, after the fault is cleared, the control chip can control the electric rotating ring to rotate in the opposite direction to the limit position, so that the conductive post 301 and the conductive concave plate 302 coincide, and complete the reset. The reset does not require manual intervention. After the fault is cleared, it can be automatically reset remotely, so that the power supply can resume normal charging and discharging operation.

[0056] The third implementation method:

[0057] This embodiment is based on the first or second embodiment, but changes the specific arrangement of the guide rod 41 and the reset rod 42, while the rest remains the same as the first embodiment.

[0058] It is worth noting that if this embodiment is implemented based on the second embodiment, the connection between the self-deflection joint 34 and the fixed joint 31 is made by electric rotation.

[0059] like Figures 11-12 The guide rod 41 has a two-section structure, and the two adjacent ends are U-shaped structures. The two U-shaped structures are interlocked, such as... Figure 12The outer surface of the middle part of the reset rod 42 has a pre-crack 401, and the inner part of the middle part of the reset rod 42 has a through-hole 402. An inner spring rope 403 is fixedly connected between the left and right inner walls of the through-hole 402. The diameter of the inner spring rope 403 does not exceed 1 / 3 of the diameter of the middle part of the reset rod 42. If the distributed power supply experiences an extreme fault (such as thermal runaway), or if the data received by the control chip from the sensor group is not mitigated in time and the abnormality worsens, the control chip can control the air pump to continue to inflate, so that the air ring 51 continues to expand, so that the two arm rings 33 simultaneously contact the ends of the guide rod 41 and the reset rod 42, and then continue to inflate. Under the expansion and compression of the air ring 51, the U-shaped locking joint of the guide rod 41 is gradually opened. At the same time, under the action of the pre-crack 401, the middle part of the reset rod 42 gradually breaks due to excessive stretching, so that the expansion force acts on the thinner inner elastic rope 403. With continued inflation, the inner elastic rope 403 can also break, thereby completely separating the moving connector 32 from the fixed connector 31. Under the expansion force of the air ring 51, it is quickly bounced open, thus creating a destructive physical isolation between the moving connector 32 and the fixed connector 31, directly isolating the possibility of secondary connection, effectively avoiding the impact of the power supply body 1 failure on the load equipment and charging equipment, and thus effectively reducing losses.

[0060] The inner spring rope 403 can effectively prevent the reset rod 42 from affecting the connection stability of the fixed joint 31 and the moving joint 32 in the event of accidental breakage.

[0061] It is worth noting that an intercepting net can also be installed along the path in which the moving joint 32 is ejected, so that the moving joint 32 is less likely to affect other components when it is ejected.

[0062] The control chip first drives the two-stage adapter to pneumatically separate, achieving rapid power-off; the inclined rope 6 synchronously rotates the self-deflecting connector 34, thereby achieving the misalignment and separation of the conductive post 301 and the conductive concave plate 302, effectively extending the creepage distance and reducing the risk of secondary connection; and in the event of an extreme fault, it can trigger secondary inflation, ejecting the movable side connector 32 as a whole, achieving irreversible absolute physical isolation, thereby directly separating it from the hazard source and directly isolating the risk of secondary connection. This invention greatly improves the safety and reliability of this distributed power supply through a multi-level safety response from rapid separation and power-off to misalignment isolation and active expulsion.

[0063] The above description is merely a preferred embodiment of the present invention; it encompasses all the protection scope of the present invention. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solutions and improved concepts of the present invention, should be covered within the protection scope of the present invention.

Claims

1. A high-security distributed power supply, comprising a power supply body (1), wherein the power supply body (1) is provided with a charging interface (21) and a discharging interface (22), characterized in that: Both the charging interface (21) and the discharging interface (22) are electrically connected to an adapter (3). The adapter (3) includes a fixed connector (31) that plugs into the charging interface (21) or the discharging interface (22), a moving connector (32) that matches the fixed connector (31), and two arm rings (33) that are fixedly connected to the outer walls of the fixed connector (31) and the moving connector (32) respectively. The moving connector (32) and the fixed connector (31) are respectively provided with a conductive post (301) and a conductive recess (302) at the ends of the moving connector (32) and the fixed connector (31) respectively. And the two are matched with each other. The two arm rings (33) are both cut with annular grooves at their close ends. An air ring (51) is placed between the two annular grooves. An air tube (52) is fixedly connected to the outer end of the air ring (51). The end of the air tube (52) connected to the air ring (51) moves through the arm ring (33) on the fixed connector (31). An air pump is connected to the air tube (52). A control chip is integrated on the fixed connector (31). The air pump and the sensor group built into the distributed power supply are both connected to the control chip signal. Two guide rods (41) and two reset rods (42) are movably connected between the two arm rings (33). The two guide rods (41) and the two reset rods (42) are intersecting each other and distributed at equal intervals. The guide rods (41) and the reset rods (42) also movably connect through the air ring (51), and the surfaces of the ends of the two reset rods (42) that are close to each other respectively abut against the two arm rings (33). Three conductive posts (301) and three conductive concave pieces (302) are provided, corresponding to the neutral wire, the live wire and the ground wire respectively. The fixed connector (31) is rotatably connected to a self-deflecting connector (34) at one end near the moving connector (32), and an air ring (51) is sleeved on the self-deflecting connector (34). Multiple oblique ropes (6) are fixedly connected between the self-deflecting connector (34) and the arm ring (33) on the moving connector (32). Multiple conductive concave pieces (302) are installed on the self-deflecting connector (34). A wrapping layer (7) is also fixedly connected to the end of the self-deflecting connector (34). Multiple inclined ropes (6) are located inside the air ring (51), and the inclined ropes (6) are made of non-elastic material. The radial angle deviation between the two ends of the inclined ropes (6) is not less than the angle between the two sides of the conductive concave plate (302) and the axis of the self-deflection connector (34). When the radial line connecting the two ends of the inclined ropes (6) intersects the axis of the self-deflection connector (34), the conductive post (301) and the conductive concave plate (302) are completely misaligned. The wrapping layer (7) is made of elastic insulating material, and the wrapping layer (7) is filled with insulating oil.

2. The high-security distributed power supply according to claim 1, characterized in that: The two arm rings (33) are in contact with each other, and the middle rod-shaped structure of the reset rod (42) is made of a highly resilient material, and the length of the rod-shaped structure is greater than the total thickness of the two arm rings (33). The middle rod-shaped structure of the guide rod (41) is made of a hard material, and the length of the rod-shaped structure is greater than the total length of the two arm rings (33).

3. A highly secure distributed power supply according to claim 2, characterized in that: The radial width of the air ring (51) is smaller than the width of the annular groove, and the air ring (51) is made of elastic sealing material, with the two arm rings (33) in contact with each other.

4. A highly secure distributed power supply according to claim 1, characterized in that: The length of the rod-shaped structure in the middle of the guide rod (41) is greater than the distance between the two arm rings (33) at one end away from each other, and the distance difference is not less than the thickness of the conductive post (301). The length of the rod-shaped structure in the middle of the reset rod (42) is less than the distance between the two arm rings (33) at one end away from each other.

5. A highly secure distributed power supply according to claim 1, characterized in that: The self-deflecting connector (34) and the fixed connector (31) are connected by an electric rotating ring, and the maximum rotation stroke of the self-deflecting connector (34) is no more than 120°. When the self-deflecting connector (34) is at the limit position on one side of the rotation stroke, the conductive post (301) and the conductive concave plate (302) coincide.

6. A high-security distributed power supply according to claim 5, characterized in that: The guide rod (41) has a two-section structure, and the two ends that are close to each other are U-shaped structures, and the two U-shaped structures are interlocked.

7. A highly secure distributed power supply according to claim 6, characterized in that: The outer surface of the middle part of the reset rod (42) is chiseled with a pre-crack (401), and the middle part of the reset rod (42) is chiseled with a through-hole (402). An inner elastic rope (403) is fixedly connected between the left and right inner walls of the through-hole (402). The diameter of the inner elastic rope (403) does not exceed 1 / 3 of the diameter of the middle part of the reset rod (42).

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