Mechanical power supply lightning protection device with redundant backup

Abstract

The utility model discloses a mechanical power supply lightning protection device with redundant backup, and relates to the technical field of power supply guarantee devices, in particular to the mechanical power supply lightning protection device with the redundant backup. The lightning protection device mainly comprises a shell, a main lightning protection device and a standby lightning protection device, a right telemetering signal output terminal and a left telemetering signal output terminal are respectively arranged in the shell, a main lightning protection state window and a standby state window are arranged on the outer surface of the shell, and the main lightning protection device and the standby lightning protection device are symmetrically arranged on two sides of the shell; and an intermediate connecting piece which can automatically switch on or off the standby lightning protection device when the main lightning protection device fails is arranged between the main lightning protection device and the standby lightning protection device. According to the utility model, the main lightning protection device and the standby lightning protection device are switched by adopting a tripping welding mode, so that the mechanical control is not influenced by any external factor, the response speed is high, and the resetting means is simple and easy.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply guarantee devices, in particular to a mechanical power supply lightning arrester with redundant backup. Background Art

[0002] With the advancement of society, people's production and daily lives have become closely intertwined with the use of electricity. During the use of various electronic equipment, instruments, and communication lines, transient surges in current or voltage caused by external factors can easily cause damage to the equipment or data loss. Therefore, protective devices that maintain continuity and provide safety during product application are essential technical means for existing equipment such as medical equipment, nuclear power plants, and data centers.

[0003] Many existing redundant backup power supplies use electronic circuits for conversion. Although they have the advantages of high sensitivity and fast response speed, they are also affected by surges of current or voltage fluctuations during operation, resulting in reduced response speed and even erroneous operation. There are also those that use a magnetic structure for jump conversion, which is also affected by external factors and has the defect that magnetic control is difficult to accurately control. Summary of the Invention

[0004] The purpose of the utility model is to overcome the above-mentioned defects of the prior art and provide a mechanical power supply lightning arrester with redundant backup.

[0005] The utility model adopts the following technical solutions:

[0006] A mechanical power supply lightning arrester with redundant backup, mainly composed of a housing, a main lightning arrester and a backup lightning arrester. The housing is provided with a right telemetry signal output terminal and a left telemetry signal output terminal, respectively. The outer surface of the housing is provided with a main protection status window and a backup status window. The main lightning arrester and the backup lightning arrester are symmetrically arranged on both sides of the housing. An intermediate connector is provided between the main lightning arrester and the backup lightning arrester, which can automatically switch to the backup lightning arrester when the main lightning arrester fails.

[0007] The main lightning protection device is composed of a main lightning protection element, a left connecting rod, a left micro-contact switch and a left spring. The main lightning protection element is fixed on the left side of the shell. One end of the left connecting rod is hinged on the shell, and the other end is welded and electrically connected to the main lightning protection element through a welding piece thereon. The side of the left connecting rod close to the welding piece is fixedly connected to one end of the left spring. The other end of the left spring is fixed to the shell away from the main lightning protection element. Under the tension of the left spring, the left connecting rod moves toward the direction of the middle connecting piece on the shell. The left connecting rod is connected to the external protected power supply. The left micro-contact switch is located on one side of the left connecting rod and on the shell away from the main lightning protection element. The left micro-contact switch is electrically connected to the left telemetry signal output terminal through a signal line.

[0008] The welding connection between the welding piece and the main lightning protection element is a 135°C trip welding;

[0009] The backup lightning protection device consists of a backup lightning protection element, a right connecting rod, a right micro-contact switch and a right spring. The backup lightning protection element is fixed to the housing, one end of the right connecting rod is hinged to the housing, and the other end is welded to the intermediate connecting piece through a welding piece thereon. One side of the right connecting rod close to the welding piece is fixedly connected to one end of the right spring, and the other end of the right spring is fixed to the housing close to the backup lightning protection element. Under the pulling force of the right spring, the right connecting rod tends to move in the direction of separating from the intermediate connecting piece on the housing, and the right connecting rod is connected to an external power supply. The right micro-contact switch is located on one side of the right connecting rod and on the housing between the backup lightning protection element and the right connecting rod. The right micro-contact switch is electrically connected to the right telemetry signal output terminal through a signal line.

[0010] The welding piece on the right connecting rod is welded to the middle connecting piece in a 135°C trip welding manner;

[0011] The left linkage rod is provided with a left contact, which corresponds to the contact on the left micro-contact switch.

[0012] Since the utility model adopts the trip welding method to switch between the main lightning protection device and the backup lightning protection device, the mechanical control will not be affected by any external factors, the response speed is fast, and the reset means is simple and easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attachment Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] Attachment Figure 2 This is a partial enlarged view of the utility model;

[0015] Attachment Figure 3 This is the appearance diagram of the utility model;

[0016] Attachment Figure 4 This is one of the state diagrams used in this utility model;

[0017] Attachment Figure 5 This is the second diagram of the usage state of the utility model;

[0018] Attachment Figure 6 This is the third diagram of the usage state of the utility model. DETAILED DESCRIPTION

[0019] See attached Figures 1 to 3 A mechanical power supply lightning arrester with redundant backup mainly consists of a housing 1, a main lightning arrester 2 and a backup lightning arrester 3. The housing 1 is provided with a right telemetry signal output terminal 13 and a left telemetry signal output terminal 12 respectively. A main protection status window 15 and a backup status window 16 are provided on the outer surface of the housing 1. The main lightning arrester 2 and the backup lightning arrester 3 are symmetrically arranged on both sides of the housing 1. An intermediate connector 14 is provided between the main lightning arrester 2 and the backup lightning arrester 3, which can automatically switch to the backup lightning arrester 3 when the main lightning arrester 2 fails.

[0020] The main lightning protection device 2 is composed of a main lightning protection element 21, a left connecting rod 22, a left micro-contact switch 23 and a left spring 24. The main lightning protection element 21 is fixed on the left side of the shell 1. One end of the left connecting rod 22 is hinged to the shell 1, and the other end is welded and electrically connected to the main lightning protection element 21 through a welding piece 222 thereon. The side of the left connecting rod 22 close to the welding piece 222 is fixedly connected to one end of the left spring 24, and the other end of the left spring 24 is fixed on the shell 1 away from the main lightning protection element 21. Under the tension of the left spring 24, the left connecting rod 22 moves toward the direction of the intermediate connecting piece 14 on the shell 1. The left connecting rod 22 is connected to the external protected power supply. The left micro-contact switch 23 is located on one side of the left connecting rod 22 and on the shell 1 away from the main lightning protection element 21. The left micro-contact switch 23 is electrically connected to the left telemetry signal output terminal 12 through a signal line.

[0021] The welding connection between the welding piece 222 and the main lightning protection element 21 is a 135°C trip welding;

[0022] The backup lightning protection device 3 is composed of a backup lightning protection element 31, a right connecting rod 32, a right micro-contact switch 33 and a right spring 34. The backup lightning protection element 31 is fixed on the shell 1, one end of the right connecting rod 32 is hinged on the shell 1, and the other end is welded to the intermediate connecting piece 14 through the welding piece 321 thereon. One side of the right connecting rod 32 near the welding piece 321 is fixedly connected to one end of the right spring 34, and the other end of the right spring 34 is fixed to the shell 1 near the backup lightning protection element 31. Under the pulling force of the right spring 34, the right connecting rod 32 tends to move in the direction of separating from the intermediate connecting piece 14 on the shell 1. The right connecting rod 32 is connected to the external power supply. The right micro-contact switch 33 is located on one side of the right connecting rod 32 and on the shell 1 between the backup lightning protection element 31 and the right connecting rod 32. The right micro-contact switch 33 is electrically connected to the right telemetry signal output terminal 13 through a signal line.

[0023] The welding piece 321 on the right connecting rod 32 is welded to the intermediate connecting piece 14 in a 135°C release welding manner;

[0024] The left linkage rod 22 is provided with a left contact 221 , and the contact 221 corresponds to the contact on the left micro-contact switch 23 .

[0025] See attached Figure 4 When the main lightning protection element 21 of the present invention is working, the main lightning protection element 21 obtains power from the external power supply through the welding piece 222 and the left connecting rod 22, and the main lightning protection element 21 works normally. The main protection status window 15 provided on the outer surface of the housing 1 displays a green light indicating normal operation;

[0026] See attached Figure 5 When the main lightning protection element 21 fails and generates heat, the welding point between the welding piece 222 on the left linkage rod 22 and the main lightning protection element 21 is a 135°C trip weld (low-temperature welding). The solder melts, and the left linkage rod 22 is released from the main lightning protection element 21, causing the left linkage rod 22 to swing to the right under the tension of the left spring 24. The metal contact on the left linkage rod 22 simultaneously contacts the middle connecting piece 14, and the middle connecting piece 14 is welded to the right linkage rod 32. The right linkage rod 32 is then connected to the backup lightning protection element 31, so that the power is directly connected to the right backup lightning protection element 31. At this time, the right backup lightning protection element 31 is in working condition, and the left main lightning protection element 21 fails at the same time. The main protection status window 15 provided on the outer surface of the shell 1 displays a red light indicating abnormal operation, while the backup status window 16 provided on the outer surface of the shell 1 displays a green light indicating normal operation.

[0027] See attached Figure 6When the right backup lightning arrester 31 also fails, the soldering iron 321 on the right linkage rod 32 and the intermediate connector 14 also disengage due to the low-temperature solder melting. This causes the right linkage rod 32 to swing to the right under the pull of the right spring 34, breaking contact with the power line and preventing a short circuit fire. At this point, the entire lightning arrester is completely inoperable. Both the main protection status window 15 and the backup status window 16 on the outer surface of the housing 1 display red lights indicating malfunction, alerting the operator.

[0028] When the left and right connecting rods 22 and 32 are tripped, the left micro contact switch 23 or the right micro contact switch 33 will be pressed at the same time. When the left connecting rod 22 is in action, the contact button of the left micro contact switch 23 is pressed, the switch state changes, and the COM and NO connection signals are output, which are output through the left telemetry signal output terminal 12 to remind relevant personnel to deal with it in time; when the right connecting rod 32 is in action, the contact button of the right micro contact switch 33 is pressed, the switch state changes, and the COM and NO connection signals are output, which are output through the right micro contact switch 33 terminal to remind relevant personnel to deal with it in time.

Claims

1. A mechanical power supply lightning arrester with redundant backup, mainly consisting of a housing, a main lightning arrester, and a backup lightning arrester. The housing is provided with a right telemetry signal output terminal and a left telemetry signal output terminal, respectively. The housing is provided with a main protection status window and a backup status window on the outer surface of the housing. The main lightning arrester and the backup lightning arrester are symmetrically arranged on either side of the housing. The characteristics are: An intermediate connector is provided between the main lightning protection device and the backup lightning protection device, which can automatically switch to the backup lightning protection device for conduction or disconnection when the main lightning protection device fails.

2. The mechanical power surge protector with redundant backup according to claim 1, characterized in that: The main lightning protection device consists of a main lightning protection element, a left connecting rod, a left micro-contact switch and a left spring. The main lightning protection element is fixed on the left side of the shell. One end of the left connecting rod is hinged to the shell, and the other end is welded and electrically connected to the main lightning protection element through the welding piece thereon. The side of the left connecting rod close to the welding piece is fixedly connected to one end of the left spring, and the other end of the left spring is fixed to the shell away from the main lightning protection element. Under the action of the tension of the left spring, the left connecting rod tends to move toward the direction of the middle connecting piece on the shell. The left connecting rod is connected to the external protected power supply. The left micro-contact switch is located on one side of the left connecting rod and on the shell away from the main lightning protection element. The left micro-contact switch is electrically connected to the left telemetry signal output terminal through a signal line.

3. The mechanical power surge protector with redundant backup according to claim 2, characterized in that: The welding connection between the welding piece and the main lightning protection element is a 135°C trip welding.

4. The mechanical power surge protector with redundant backup according to claim 1, characterized in that: The backup lightning protection device consists of a backup lightning protection element, a right connecting rod, a right micro-contact switch and a right spring. The backup lightning protection element is fixed on the shell. One end of the right connecting rod is hinged to the shell, and the other end is welded to the intermediate connecting piece through the welding piece thereon. The side of the right connecting rod close to the welding piece is fixedly connected to one end of the right spring. The other end of the right spring is fixed to the shell close to the backup lightning protection element. Under the tension of the right spring, the right connecting rod tends to move in the direction of breaking away from the intermediate connecting piece on the shell. The right connecting rod is connected to the external power supply. The right micro-contact switch is located on one side of the right connecting rod and on the shell between the backup lightning protection element and the right connecting rod. The right micro-contact switch is electrically connected to the right telemetry signal output terminal through a signal line.

5. The mechanical power supply lightning arrester with redundant backup according to claim 4, characterized in that: The welding piece on the right connecting rod is welded to the middle connecting piece in a 135°C tripping welding manner.

6. The mechanical power supply lightning arrester with redundant backup according to claim 2, characterized in that: The left linkage rod is provided with a left contact, which corresponds to the contact on the left micro-contact switch.

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