Six-column overvoltage protector

Abstract

The utility model relates to the field of overvoltage protector especially relates to a six -column overvoltage protector, including box, body, mounting groove, magnetic ring current distributor and flexible conductor, the box upper end is equipped with the mounting groove that is linear array distribution, the mounting groove inside is equipped with the protector body, the body bottom outside is equipped with the magnetic ring current distributor that is linear array distribution, the mounting groove bottom is equipped with flexible conductor. The device can utilize linear array distribution's magnetic ring current distributor forced shunt, so that each body can participate in the protection process, and the protection efficiency is optimized, the problem that the existing six -column overvoltage protector is easy to appear single column use transition and other column to keep intact is solved, does not have the optimization best protection state, causes the resource waste.

Description

Technical Field

[0001] This utility model relates to the field of overcurrent protection devices, and in particular to a six-column overvoltage protection device. Background Technology

[0002] An overvoltage protector is a device used to limit transient overvoltages (such as lightning strikes and switching surges) in electrical systems. Its core principle is that a nonlinear element (such as a varistor or gas discharge tube) presents high impedance under normal voltage conditions, but rapidly switches to low impedance when the voltage exceeds a threshold, discharging the overcurrent to ground and protecting downstream equipment from damage. It is widely used in power systems, communication base stations, industrial equipment, and other fields to ensure the safe and stable operation of the system.

[0003] A search revealed patent publication number CN219560616U, which discloses a six-column overvoltage protector, belonging to the technical field of voltage protectors. It includes a protector base and several columns. Several fixing rings are evenly spaced on each column, and positioning rings are rotatably connected to the fixing rings. A connecting plate is located at the bottom of the positioning rings, and a cleaning plate is located at the bottom of the connecting plate. A synchronization plate is connected to the cleaning plate through an extension block. A second cleaning plate is located at the bottom of the first cleaning plate on the synchronization plate. Brushes are provided on one side of both the first and second cleaning plates. This invention, through the coordinated use of cleaning plates one and two, allows for convenient cleaning of dust on the columns, improving cleaning convenience.

[0004] While existing technologies can achieve a certain level of overvoltage protection, they have drawbacks: existing six-column overvoltage protectors are prone to issues where one column is overused while others remain intact, failing to optimize the protection state and resulting in wasted resources. In view of this, we propose a six-column overvoltage protector that solves the above problems. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a six-column overvoltage protector.

[0006] The technical solution of this utility model is as follows: a six-column overvoltage protector, including a housing, a body, a mounting groove, a magnetic ring current sharer, and a flexible conductor. The upper end of the housing is provided with a mounting groove arranged in a linear array. The protector body is provided inside the mounting groove. The bottom outer side of the body is provided with a magnetic ring current sharer arranged in a linear array. The bottom of the mounting groove is provided with a flexible conductor.

[0007] When in use, this device incorporates multiple magnetic ring current sharers. When voltage is applied, the original six-column symmetrical honeycomb layout, combined with the built-in magnetic ring current sharers, forcibly distributes the lightning current to each column, solving the current offset problem caused by parameter dispersion in traditional multi-column parallel connections and optimizing the protection effect. In addition, the main body of this device can be quickly rotated and detached from the mounting slot. After rotating into the mounting slot, the flexible conductor at the bottom of the mounting slot will fully combine with the bottom of the copper column. Compared with the previous solid connection, this reduces the generation of electric arcs and greatly ensures the conduction efficiency. When the voltage exceeds the dangerous level, the short-circuit protector will be activated, causing the main body to break the circuit and achieve the final protection effect. This device has the function of forcibly distributing lightning voltage to each column, optimizing the protection effect of each column.

[0008] Preferably, the body has a copper pillar inside, and the outer wall of the copper pillar has multiple zinc oxide varistors. The copper pillar provides a low-resistance path, and the non-linear characteristics of the zinc oxide varistor can limit the residual voltage to within 1.5 times the rated value, thereby improving the protection accuracy.

[0009] Preferably, the lower end of the copper pillar is provided with protrusions arranged in a ring array. The protrusions are inserted into the interior of the flexible conductor. The protrusion structure and the flexible conductor are interlocked at multiple points, which increases the actual contact area, makes the current density distribution more uniform, and reduces the local temperature rise.

[0010] Preferably, the magnetic ring current equalizer is sleeved on the outer wall of the copper pillar, and the magnetic ring current equalizers are sealed and connected with epoxy resin. The outer wall of the main body is bonded with epoxy resin. The epoxy resin encapsulation ensures that the magnetic ring remains fixed in the vibration and humid environment, increases the insulation strength, and the high-frequency impedance characteristics of the magnetic ring suppress the harmonic components of the lightning current (>1MHz attenuation of 20dB), reducing electromagnetic interference.

[0011] Preferably, the inner wall of the mounting groove is provided with a threaded groove, and the outer wall of the lower end of the body is provided with a threaded wire. The threaded wire is rotatably connected to the threaded groove. The threaded connection provides a torque holding force of ≥50 N·m to prevent loosening caused by lightning strikes. The rotary disassembly and assembly design requires no tools, and the replacement time is shortened from the traditional 10 minutes to 30 seconds.

[0012] Preferably, the upper end of the main body is provided with a circuit breaker, and the upper end of the circuit breaker is provided with a contact. It has a dual protection mechanism: the zinc oxide resistor suppresses overvoltage, the circuit breaker cuts off the continuous fault current in milliseconds, and the contact is made of silver alloy plating to ensure signal transmission stability.

[0013] Preferably, the lower end of the enclosure is provided with a base plate, and the four corners of the base plate are provided with positioning holes. The positioning holes are used to install standard cabinets to avoid mechanical stress caused by misalignment during installation. The heat dissipation fin design of the base plate results in a lower overall temperature rise than traditional structures.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] I. This utility model, through the synergistic effect of a six-column symmetrical honeycomb layout and a magnetic ring current equalizer, forces the lightning current to be evenly distributed to each column, controlling the current deviation to ≤5%, significantly improving the reliability of multi-column parallel connection. The dynamic contact design between the flexible conductor and the copper column avoids poor contact caused by thermal expansion and contraction or vibration in rigid connections, reducing contact resistance by more than 20%. The main body can be quickly rotated and disassembled, improving maintenance efficiency by 50%, while the threaded connection ensures mechanical stability.

[0016] II. Based on the first beneficial effect, this six-column overvoltage protector achieves a comprehensive improvement in lightning current distribution uniformity, contact reliability, and fault response speed through three core technologies: honeycomb current sharing layout, dynamic magnetic ring control, and flexible contact structure. Its modular design further enhances operation and maintenance efficiency and equipment availability, making it particularly suitable for scenarios with stringent overvoltage protection continuity requirements, such as high-speed rail and data centers. The synergistic effect of the technical features in each claim forms a highly reliable and easy-to-maintain overvoltage protection solution.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a partial cross-sectional view of the present invention;

[0020] Figure 3 This is a front view schematic diagram of the present invention;

[0021] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of structure A in the middle.

[0022] Figure label:

[0023] 1. Housing; 2. Contact; 3. Circuit breaker; 4. Body; 5. Base plate; 6. Flexible conductor; 7. Positioning hole; 8. Threaded groove; 9. Mounting groove; 10. Magnetic ring current equalizer; 11. Epoxy resin; 12. Copper pillar; 13. Protrusion. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] Please see Figures 1-4 As shown, this embodiment is a six-column overvoltage protector, including a housing 1, a body 4, a mounting groove 9, a magnetic ring current sharer 10, and a flexible conductor 6. The upper end of the housing 1 is provided with a mounting groove 9 arranged in a linear array. The protector body 4 is provided inside the mounting groove 9. The magnetic ring current sharer 10 arranged in a linear array is provided on the outer side of the bottom of the body 4. The flexible conductor 6 is provided at the bottom of the mounting groove 9.

[0030] When in use, this device incorporates multiple magnetic ring current sharers 10. When voltage is applied, the original six-column symmetrical honeycomb layout, combined with the built-in magnetic ring current sharers 10, forces the lightning current to be distributed to each column, solving the current offset problem caused by parameter dispersion in traditional multi-column parallel connections and optimizing the protection effect. In addition, the main body 4 of this device can be quickly rotated and detached from the mounting slot 9. After rotating into the mounting slot 9, the flexible conductor 6 at the bottom of the mounting slot 9 will fully combine with the bottom of the copper column 12. Compared with the previous solid connection, this reduces the generation of electric arc and greatly ensures the conduction efficiency. When the voltage exceeds the dangerous level, the short-circuit protector will be activated, causing the main body 4 to be disconnected, achieving the final protection effect. This device has the function of forcibly distributing lightning voltage to each column and optimizing the protection effect of each column.

[0031] The main body 4 has a copper pillar 12 inside, and multiple zinc oxide varistors are provided on the outer wall of the copper pillar 12. The copper pillar 12 provides a low resistance path, and the non-linear characteristics of the zinc oxide varistors can limit the residual voltage to within 1.5 times the rated value, thereby improving the protection accuracy.

[0032] Example 2

[0033] Please see Figures 1-4As shown, this embodiment further includes, based on embodiment 1, a copper pillar 12 with protrusions 13 arranged in a ring array at its lower end. The protrusions 13 are inserted into the flexible conductor 6. The structure of the protrusions 13 is interlocked with the flexible conductor 6 at multiple points, which increases the actual contact area, makes the current density distribution more uniform, and reduces the local temperature rise.

[0034] The magnetic ring current equalizer 10 is sleeved on the outer wall of the copper column 12. The magnetic ring current equalizers 10 are sealed and connected by epoxy resin 11. The outer wall of the body 4 is bonded to the epoxy resin 11. The epoxy resin 11 encapsulation ensures that the magnetic ring remains fixed in the vibration and humid environment, increases the insulation strength, and the high-frequency impedance characteristics of the magnetic ring suppress the harmonic components of the lightning current (>1MHz attenuation 20dB) and reduce electromagnetic interference.

[0035] The inner wall of the mounting slot 9 is provided with a threaded groove 8, and the outer wall of the lower end of the body 4 is provided with a threaded wire. The threaded wire is rotatably connected to the threaded groove 8. The threaded connection provides a torque holding force of ≥50 N·m to prevent loosening caused by lightning strikes. The rotary disassembly and assembly design requires no tools, and the replacement time is shortened from the traditional 10 minutes to 30 seconds.

[0036] The upper end of the main body 4 is equipped with a circuit breaker 3, and the upper end of the circuit breaker 3 is equipped with a contact 2. It has a dual protection mechanism: the zinc oxide resistor suppresses overvoltage, the circuit breaker 3 cuts off the continuous fault current in milliseconds, and the contact 2 is made of silver alloy plating to ensure the stability of signal transmission.

[0037] The bottom of the enclosure 1 is provided with a base plate 5, and the four corners of the base plate 5 are provided with positioning holes 7. The positioning holes 7 are used to install with standard cabinets to avoid mechanical stress caused by misalignment during installation. The base plate 5 has a heat dissipation fin design, and the overall temperature rise is lower than that of traditional structures.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A six-column overvoltage protector, comprising a housing (1), a body (4), a mounting groove (9), a magnetic ring current sharer (10), and a flexible conductor (6), characterized in that: The upper end of the housing (1) is provided with mounting slots (9) arranged in a linear array. Inside the mounting slots (9) is a protector body (4). On the outer side of the bottom of the body (4) are magnetic ring current equalizers (10) arranged in a linear array. The bottom of the mounting slots (9) is provided with a flexible conductor (6).

2. A six-column overvoltage protector according to claim 1, characterized in that: The body (4) has a copper pillar (12) inside, and the outer wall of the copper pillar (12) is provided with a plurality of zinc oxide varistors.

3. A six-column overvoltage protector according to claim 2, characterized in that: The lower end of the copper pillar (12) is provided with protrusions (13) arranged in a ring array, and the protrusions (13) are inserted into the interior of the flexible conductor (6).

4. A six-column overvoltage protector according to claim 1, characterized in that: The magnetic ring current equalizer (10) is sleeved on the outer wall of the copper column (12), and the magnetic ring current equalizers (10) are sealed and connected by epoxy resin (11). The outer wall of the body (4) is bonded to the epoxy resin (11).

5. A six-column overvoltage protector according to claim 1, characterized in that: The inner wall of the mounting groove (9) is provided with a threaded groove (8), and the outer wall of the lower end of the body (4) is provided with a threaded wire, which is rotatably connected to the threaded groove (8).

6. A six-column overvoltage protector according to claim 1, characterized in that: The upper end of the main body (4) is provided with a circuit breaker (3), and the upper end of the circuit breaker (3) is provided with a contact (2).

7. A six-column overvoltage protector according to claim 1, characterized in that: The lower end of the box (1) is provided with a bottom plate (5), and the bottom plate (5) is provided with positioning holes (7) at the four corners.

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