Centralized combined lightning protection device

Abstract

The embodiment of the utility model provides a centralized combined lightning protection device. The centralized combined lightning protection device comprises a conductive base; the high-voltage lead is connected with the conductive base; the low-voltage lead is connected with the conductive base and is used for guiding current to a grounding end; the conductive joint is arranged between the high-voltage lead and the low-voltage lead and is used for connecting the high-voltage lead and the low-voltage lead; the metal spring is arranged on the conductive joint and is used for increasing the contact pressure between the conductive joint and the high-voltage lead and the low-voltage lead; the insulating sleeve wraps the outer sides of the high-voltage lead, the low-voltage lead and the conductive connector; a heat insulation ring is arranged between the conductive joint and the metal spring; and the conductive base is provided with a groove for fixing and supporting the conductive joint, and the bottom of the groove is provided with a plurality of through holes for heat dissipation. Through the scheme of the embodiment of the invention, the problems of contact point resistance increase and conductivity reduction caused by metal migration of the conductive material in the lightning protection device after long-term high-energy current passes through can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power system protection equipment, in particular to a centralized combination lightning protection device. BACKGROUND

[0002] The centralized combination lightning protection device is a device specially used for protecting electrical equipment from lightning overvoltage impact damage, and is usually applied to power systems, communication base stations and other occasions with high requirements for lightning protection. However, this lightning protection device also has some problems: because the internal conductive material will undergo metal migration phenomenon after long-term suffering of high-energy current passing, which leads to the gradual increase of the resistance of the contact point and the decline of the overall conductive performance, thereby affecting the working efficiency and reliability of the lightning protection device, and further reducing the safety of the protected system. SUMMARY

[0003] Therefore, the embodiments of the present application provide a centralized combination lightning protection device to at least partially solve the problems in the prior art.

[0004] The centralized combination lightning protection device of the present application comprises:

[0005] a conductive base for fixing and supporting the entire lightning protection device;

[0006] a high-voltage lead connected with the conductive base for introducing lightning current;

[0007] a low-voltage lead connected with the conductive base for guiding current to the grounding end;

[0008] a conductive joint arranged between the high-voltage lead and the low-voltage lead for connecting the high-voltage lead and the low-voltage lead and providing good electrical contact;

[0009] a metal spring installed on the conductive joint for increasing the contact pressure between the conductive joint and the high-voltage lead and the low-voltage lead;

[0010] an insulating sleeve wrapped outside the high-voltage lead, the low-voltage lead and the conductive joint for insulation protection; wherein

[0011] a heat insulation ring is arranged between the conductive joint and the metal spring; and

[0012] the conductive base is provided with a groove for fixing and supporting the conductive joint, and the bottom of the groove is provided with a plurality of through holes for facilitating heat dissipation.

[0013] According to one embodiment, the connection between the high-voltage lead and the conductive base is provided with a reinforcing ring.

[0014] According to one embodiment, the connection between the low-voltage lead and the conductive base is provided with a shockproof ring for absorbing vibration.

[0015] According to one embodiment, the conductive connector surface is covered with a layer of nano-silver film.

[0016] According to one embodiment, the metal spring is a double-layer structure, the outer layer is made of high-strength stainless steel spring, and the inner layer is made of high-conductivity copper alloy spring.

[0017] According to one embodiment, the insulating sleeve is internally provided with a plurality of longitudinal cooling fins.

[0018] According to one embodiment, the size of the conductive base is greater than the sum of the diameters of the high-voltage lead and the low-voltage lead.

[0019] According to one embodiment, the conductive connector is provided with a conductive sheet on both sides.

[0020] The embodiments of the present disclosure provide a centralized combined lightning protection device, which comprises a conductive base for fixing and supporting the whole lightning protection device; a high-voltage lead connected with the conductive base for leading lightning current; a low-voltage lead connected with the conductive base for leading current to a grounding end; a conductive connector arranged between the high-voltage lead and the low-voltage lead for connecting the high-voltage lead and the low-voltage lead and providing good electrical contact; a metal spring installed on the conductive connector for increasing the contact pressure between the conductive connector and the high-voltage lead and the low-voltage lead; and an insulating sleeve wrapped outside the high-voltage lead, the low-voltage lead and the conductive connector for insulation protection; wherein a heat insulation ring is arranged between the conductive connector and the metal spring; and the conductive base is provided with a groove for fixing and supporting the conductive connector, and the bottom of the groove is provided with a plurality of through holes for facilitating heat dissipation. Through the scheme of the embodiments of the present disclosure, the problem of increased contact point resistance and decreased electrical conductivity due to metal migration of the conductive material inside the lightning protection device after long-term high-energy current passing can be solved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In the drawings, like reference numerals will be used to refer to like or similar elements throughout several views. The drawings are not necessarily to scale, the emphasis instead being placed upon illustrating the principles of the application. It should be understood that the drawings are merely depictions of some embodiments of the application and should not be construed as limiting the scope of the application.

[0022] Figure 1 is a structure schematic view of the centralized combined lightning protection device of the utility model;

[0023] Figure 2 is a structure schematic view of the connection relationship between the high-voltage lead and the low-voltage lead in the centralized combined lightning protection device of the utility model;

[0024] Figure 3 is a structure schematic view of the centralized combined lightning protection device of the utility model Figure 2 is an enlarged view of A in the middle.

[0025] Figure 4 is a top view of the conductive base in the centralized combined lightning protection device of the utility model;

[0026] Figure 5 is a structure diagram of the insulating sleeve in the centralized combined lightning protection device of the utility model.

[0027] In the figure: 1, conductive base; 2, high-voltage lead; 3, low-voltage lead; 4, conductive connector; 5, metal spring; 6, insulating sleeve; 7, groove; 8, through hole; 9, reinforcing ring; 10, shockproof ring; 11, nano silver film; 12, heat sink; 13, heat insulation ring; 14, conductive sheet DETAILED DESCRIPTION

[0028] To make the purpose, technical scheme and advantages of the embodiments of the present disclosure clearer and more apparent, the embodiments of the present disclosure are further described in detail below with reference to the embodiments and drawings, and the schematic embodiments of the embodiments of the present disclosure and the description thereof are only used to explain the embodiments of the present disclosure, and do not limit the embodiments of the present disclosure.

[0029] As Figure 1 and Figure 2 shown, the centralized combined lightning protection device of the present application includes a conductive base 1, a high-voltage lead 2, a low-voltage lead 3, a conductive connector 4, a metal spring 5 and an insulating sleeve 6. The entire device aims to provide an efficient and reliable current introduction and transmission path, ensuring that the lightning current can be quickly and safely guided to the grounding end to achieve efficient protection.

[0030] The conductive base 1 is used to fix and support the entire lightning protection device. It provides a stable physical and electrical connection platform for other components, ensuring the stability and reliability of each component during long-term use. Since it bears the weight of the lightning protection device and withstands the electromagnetic force generated when high-energy current passes through, the material selection needs to consider its sufficient mechanical strength and good electrical conductivity. It can be manufactured by casting, and copper or copper alloy and other metal materials with high strength and electrical conductivity can be selected.

[0031] The high-voltage lead 2 is connected to the conductive base 1 and is responsible for introducing the external lightning current into the lightning protection device for processing. It is usually located at the upper part of the entire lightning protection device and matches the external wiring end. To ensure stable connection and low resistance conduction of the lead under the impact of transient high-energy, a multi-stranded twisted wire design can be used, and the part contacting the conductive base 1 is welded to enhance the firmness.

[0032] The low voltage lead 3 connects the conductive base 1 to the ground terminal, and is used to reliably introduce the processed current into the ground system for dissipation. This lead is arranged close to the lower part or side part, so as to smoothly access the pre-set ground pile or other grounding facilities. The conductive band with certain flexibility or the thicker solid core wire can be selected to increase the durability, and the fastener is processed at the end for connection to the ground clamping point, to ensure long-term reliable operation without loosening and breaking.

[0033] The conductive joint 4 is arranged between the high voltage lead 2 and the low voltage lead 3, and plays a role of key electrical connection point between the two. Its function is to establish a stable and efficient electrical signal path between the two lines, not only to transmit large current but also to ensure that there is no significant temperature difference between the contact interfaces to cause local accelerated aging. The conductive joint 4 adopts a layered embedded structure, that is, the surface silver plating layer can slow down the corrosion process while providing excellent touch quality; in addition, it also contains an internal skeleton reinforcement link to prevent structural deformation and damage to the overall continuity under high temperature.

[0034] The metal spring 5 mounted on the conductive joint 4 plays a regulating role to maintain a proper pressure degree, which can tightly press the intersection of the two conductors under different working conditions to achieve full coupling. This element considers the dynamic balance characteristics: even if it faces environmental vibration and impact, it will not easily lose the normal force applied between the conductors; at the same time, considering the temperature rise influence factor during work, the recovery distance interval is correspondingly shortened to ensure constant close contact. The copper spring wire with corrosion resistance and high conductivity is selected for winding, which further promotes the uniform heat diffusion between the contact surfaces to avoid the trend of expanding the risk of accidents caused by concentrated loss.

[0035] The outermost layer is surrounded by an insulating sleeve 6, which effectively isolates all exposed live cable parts. The main purpose of the shield is to prevent accidental electric shock, and to isolate the effects of moisture and other external pollutants on the internal device. The specific method is to strictly select synthetic rubber materials with excellent water repellency and aging resistance from the beginning of material selection to make the finished sleeve cover; secondly, the inlet and outlet are sealed by injection molding to prevent liquid substances from leaking in and affecting the functional integrity of the important components below.

[0036] The above structure ingeniously solves a thorny problem that the lightning protection device may face after a long time of operation, i.e., the increase of contact resistance and the decay of electrical performance caused by metal migration. In particular, in a high-energy lightning pulse environment, ordinary metal is prone to soften and migrate to the adjacent contact area due to heat, causing the gap to increase and eventually leading to conduction failure. However, in this design scheme, the constant pressure provided by the metal spring and the application of special heat-resistant materials ensure that the contact remains intact even after experiencing harsh environmental challenges; moreover, the use of silver coating technology to pre-set a barrier layer prevents the formation of oxidation products that hinder the smooth flow of current, thereby ensuring that the device always maintains optimal performance and protects the target facility from the adverse consequences of disasters.

[0037] In one embodiment, the conductive base 1 of a centralized combined lightning protection device of the present application is provided with a groove 7 (see Figure 4 ) for fixing and supporting the conductive terminal 4. The design of this structure ensures that the electrical connection point inside the lightning protection device is stably supported and positioned, preventing contact instability problems caused by external vibration or other physical effects. In addition, to address the potential risks of material aging and performance decay caused by heat accumulation during the operation of the lightning protection device, the conductive base 1 is designed with multiple through holes 8 at the bottom of the groove 7. The presence of through holes 8 helps to accelerate air circulation, achieving effective heat dissipation and reducing the impact of high temperature on the conductive terminal 4.

[0038] In a specific design, these components are fixed and positioned through precise mechanical fitting, ensuring the tightness and firmness of the entire device. At the same time, this special structure not only enhances the stability of the overall structure, but also facilitates the operation during the assembly process, improving manufacturing efficiency and reliability. For example, the groove 7 and its internal structure are made through numerical control machining to ensure dimensional accuracy and surface quality; the conductive terminal 4 is then securely fixed in the corresponding groove 7 using screws or embedded mounting methods, forming a reliable electrical connection between the two and facilitating future maintenance and repair.

[0039] In one embodiment, as shown in Figure 2 , the connection between the high-voltage lead 2 and the conductive base 1 of a centralized combined lightning protection device of the present application is provided with a reinforcing ring 9 to enhance the mechanical strength and electrical conductivity at this location. By setting the reinforcing ring 9, the temperature rise phenomenon that may occur at the connection site when high-energy current passes through can be effectively reduced, and the increase of contact resistance caused by metal migration can be prevented, ensuring that the connection point maintains excellent electrical conductivity for a long time.

[0040] In a specific implementation, for example, the high-voltage lead 2 can be welded or crimped to the conductive base 1 to ensure good electrical contact. A reinforcing ring 9 is then added to completely wrap the interface edge between the two. The reinforcing ring 9 is made of a metal material with high strength and good electrical conductivity, such as copper alloy, and the inside of the ring can be filled with a heat-conducting paste or other auxiliary materials to further optimize the conduction performance and provide heat dissipation. At the same time, the end of the reinforcing ring 9 is seamlessly connected to the conductive base 1 and the high-voltage lead 2 to ensure the integrity and stability of the overall structure.

[0041] In one embodiment, a shock-absorbing ring 10 (see Figure 1 ) is provided at the connection between the low-voltage lead 3 and the conductive base 1 of the centralized combined lightning protection device of the present application. The shock-absorbing ring 10 can effectively absorb vibrations, thereby ensuring reliable electrical connection between the low-voltage lead 3 and the conductive base 1. In specific application environments, electrical equipment often faces various types of vibrations, especially in complex application scenarios such as industry or transportation. Due to the presence of the shock-absorbing ring 10, this design reduces the problem of poor contact caused by vibrations and further prevents the increase in contact resistance and the decline in electrical conductivity caused by metal migration.

[0042] This design ensures that the connection between the low-voltage lead 3 and the conductive base 1 remains stable and reliable even in harsh environmental conditions. By placing the shock-absorbing ring 10 around the connection between the low-voltage lead 3 and the conductive base 1, this structure can effectively alleviate the impact of external vibrations on the internal connection point, providing good mechanical cushioning while avoiding the problems that may be caused by traditional hard connections. This solution is suitable for a wide range of power protection scenarios, especially in situations where vibrations and unstable physical conditions need to be addressed. For critical power infrastructure, stable electrical connections are crucial, and this design meets the needs of such high-demand application scenarios.

[0043] For example, in one possible implementation, the shock-absorbing ring 10 can be installed at the location where the low-voltage lead 3 and the conductive base 1 are connected using adhesives or bolts and other fixation methods, so that the shock-absorbing ring 10 tightly wraps the overall connection structure formed between the two. Specifically, the shock-absorbing ring 10 can be made of a material with certain elasticity and durability, such as silicone rubber or nitrile rubber, to better achieve the vibration reduction effect. This not only increases the reliability of the system, but also makes maintenance and repair simpler, reduces daily operating costs, and improves overall performance.

[0044] In one embodiment, as Figure 3As shown, the conductive terminal 4 of the centralized combined lightning protector of the present application is covered with a layer of nano-silver film 11. In this way, the conductivity and corrosion resistance of the surface of the conductive terminal 4 can be significantly enhanced. In a lightning protection system, high-energy current rapidly passes through the conductive terminal 4, which can cause surface oxidation and metal migration, increase the contact resistance, and reduce the overall conductivity. In order to avoid the above problems, the nano-silver film 11 material is introduced as a surface protective layer in this embodiment. Nano-silver has excellent conductivity and chemical stability, and can maintain its good performance in harsh environments.

[0045] The conductive terminal 4 is usually located at the key connection part of the lightning protector, connected with external circuits, and bears the passage of high-energy current. In order to ensure reliable conductivity and prolong service life, the thickness and adhesion quality of the nano-silver film 11 need to be precisely controlled during manufacturing. The nano-silver film 11 is tightly attached to the outer surface layer of the conductive terminal 4, completely covering all potential contact areas. The purpose of this is to enable the current to pass smoothly and unobstructed through this area, thereby ensuring that the normal working state of the lightning protector is not affected by external factors. In addition, this treatment also helps to prevent moisture and pollutants in the environment from invading and corroding the conductive terminal 4.

[0046] For example, in actual production, the application of this layer of nano-silver film 11 can be realized through advanced coating techniques such as magnetron sputtering or chemical plating. In the specific manufacturing process, the pre-treated conductive terminal 4 is placed in a special device, and by precisely controlling process parameters such as vacuum degree, sputtering power and time, etc., the nano-silver is uniformly distributed and firmly attached to the surface, finally obtaining a finished conductive terminal 4 assembly with good conductivity and oxidation resistance.

[0047] In one embodiment, the metal spring 5 of the centralized combined lightning protector of the present application is designed as a double-layer structure. The outer layer is made of high-strength stainless steel material, which ensures that the lightning protector has sufficient mechanical strength in various environments and can withstand the stress challenges of long-term use and the influence of external environment such as humidity, corrosion and mechanical vibration, etc. At the same time, the inner layer is made of high-conductivity copper alloy material, which aims to provide excellent conductivity to ensure that the current can pass efficiently and avoid safety hazards caused by increased contact resistance or decreased conductivity. The metal spring 5 is located at the key connection of the lightning protector, playing a dual role of fixation and conduction. Due to the special structure of the inner and outer layers of different materials, the problem of single material being difficult to balance mechanical strength and conductivity is effectively solved.

[0048] For example, the double-layer metal spring 5 can be achieved as follows: In terms of manufacturing process, the inner copper alloy spring is first manufactured, and then the outer high-strength stainless steel spring is fitted over the copper alloy spring according to precise dimensions and tolerances. A cold rolling process is then used to ensure a tight fit between the two, guaranteeing a stable and elastic bond, thereby constructing a spring assembly with high overall strength and excellent conductivity. This structure not only enhances the overall stability of the connection points but also ensures the effective transmission of electrical signals.

[0049] In one embodiment, such as Figure 5 As shown, the insulating bushing 6 of a centralized combined surge protector of this application has multiple longitudinal heat sinks 12 inside, increasing the heat dissipation area and improving the heat dissipation effect. The insulating bushing 6 is one of the key components of the surge protector, used to protect internal electronic components from external environmental and electrical influences. To effectively address the problem of internal heat accumulation during long-term operation, multiple longitudinal heat sinks 12 are set inside the insulating bushing 6 to achieve better heat dissipation performance. These heat sinks 12 are longitudinally distributed along the inner wall of the bushing, increasing the surface area and helping heat to be quickly conducted to the external environment, thereby reducing the temperature rise inside the insulating bushing 6.

[0050] Furthermore, optimized heat dissipation design effectively prevents material performance degradation and metal migration caused by high temperatures, ensuring stable conductivity throughout the surge protector's service life. Good thermal management and heat dissipation structure not only improve system reliability but also enhance equipment operational stability, enabling the surge protector to operate normally in complex and variable working environments.

[0051] For example, aluminum alloy or other materials with good thermal conductivity can be selected to make the aforementioned longitudinal heat sinks 12. These heat sinks 12 are in close contact with the insulating sleeve 6 and are fixed to its inner surface, forming an efficient heat dissipation channel. To ensure a stable connection, the heat sinks 12 and the sleeve can be connected by pressing, bonding, or screwing to ensure full fit and effective heat transfer. Specifically, during installation, the heat sinks 12 need to be evenly distributed inside the sleeve to cover the key heat-generating areas along the entire length, achieving overall heat dissipation.

[0052] In one embodiment, the conductive base 1 of a centralized combined surge protector of this application is designed to be larger than the sum of the diameters of the high-voltage lead 2 and the low-voltage lead 3. This design aims to ensure that the high-voltage lead 2 and the low-voltage lead 3 have sufficient support and fixation during installation, thereby avoiding poor contact due to displacement or loosening. This dimensional setting also aims to prevent metal migration problems caused by long-term use, thereby preventing increased contact resistance and decreased conductivity.

[0053] In particular, by making the lateral cross-sectional width of the conductive base 1 exceed the sum of the diameters of the two leads, a more stable support structure can be provided for the two leads. At the same time, in this case, the conductive base 1 can accommodate more additional mechanical devices or materials to increase its own strength, further enhancing the protection of the internal wiring system. Such a configuration not only ensures the basic functional stability of the device, but also effectively prolongs the service life. For example, when encountering sudden voltage fluctuations, the large size of the conductive base 1 can effectively absorb external force effects, ensuring the safety and reliability of the connection of each part.

[0054] Specifically, in actual installation, one end of the high-voltage lead 2 can be connected to the power supply side, and the low-voltage lead 3 can be connected to the grounding net or other safety circuit, both of which are placed side by side on the larger-sized conductive base 1. The conductive base 1 is made of metal material with good conductivity and stability, and a plurality of fixing points are provided on the surface thereof for tightly clamping the high-voltage lead 2 and the low-voltage lead 3, so that the two leads can always maintain correct positions even in the face of adverse factors such as vibration.

[0055] In one embodiment, a heat insulation ring 13 (as shown in Figure 3 ) is provided between the conductive connector 4 and the metal spring 5 of the centralized combined lightning protection device of the present application, which is made of material with high thermal conductivity and low thermal expansion coefficient. This design can effectively isolate the high temperature generated by high-energy current passing through, prevent material performance degradation and metal migration caused by excessive temperature. Since high-energy current impact can cause rapid temperature rise at the contact point, the application of the heat insulation ring 13 helps to maintain a low temperature state of the contact point, thereby reducing resistance increase and ensuring the stability and reliability of the conductive performance. This structural characteristic helps to prolong the service life of the components and reduce maintenance costs during the long-term operation of the lightning protection device.

[0056] Specifically, the heat insulation ring 13 is positioned between the conductive connector 4 and the metal spring 5, directly adhering to both to achieve high-efficiency heat insulation function. The high thermal conductivity of the heat insulation ring 13 allows the heat generated locally to be quickly conducted and dissipated to the surrounding environment, while its low thermal expansion coefficient ensures that it can maintain its original form even under extreme temperature differences, without affecting the stability of the overall structure or causing other safety hazards due to material deformation. In addition, the material selection needs to meet the above requirements and can withstand long-term and high-load current environment. For example, ceramic matrix composites not only have good high-temperature resistance and stable physical and chemical properties, but also provide excellent electrical insulation and mechanical strength.

[0057] In one embodiment, the thermal insulation ring 13 can be first machined to the appropriate size and shape to snugly wrap around the conductive terminal 4 and securely rest on one side of the metal spring 5. Then, through appropriate fixation means, such as using high-strength adhesives or designing the thermal insulation ring 13 as a snap-in insert, the secure bonding between the thermal insulation ring 13 and adjacent components is ensured, finally forming a highly integrated overall structure that meets the functional requirements of the design.

[0058] In one embodiment, continuing to refer to Figure 3 , the conductive terminal 4 of the centralized combined lightning protector is provided with conductive sheets 14 on both sides. These conductive sheets 14 are made of high-purity copper alloy material and are installed between the conductive terminal 4 and the high-voltage lead 2 and the low-voltage lead 3. Through this layout, the contact area between the conductive terminal 4 and the leads is effectively increased, the resistance of the contact point is reduced, and the conductivity of the entire system is improved. In the specific design, the use of high-purity copper alloy material not only increases the stability of the connection between components, but also has excellent electrical and mechanical properties, preventing the increase of contact point resistance and the decline of conductivity due to metal migration.

[0059] For example, high-purity copper alloy can be first machined into conductive sheets 14 shaped to fit on both sides of the conductive terminal 4. Then, using appropriate fixation methods (such as screw fastening or snap connection), the conductive sheets 14 are securely installed on both sides of the conductive terminal 4, and the conductive sheets 14 are ensured to be in full contact with the high-voltage lead 2 and the low-voltage lead 3. In this way, by increasing the physical contact area and choosing appropriate materials and connection methods, the contact point resistance can be effectively reduced, and the conductivity and long-term reliability of the system can be enhanced.

[0060] The above design ensures that the centralized combined lightning protector can maintain stable and reliable electrical performance under long-term and high-load working conditions, further ensuring its effectiveness in lightning protection application scenarios. The design also takes into account the manufacturing process requirements in actual production to ensure the consistency of the quality and performance of the components.

[0061] In actual operation, when the device is in use, when high-voltage lightning current is generated, the high-voltage lead 2 will receive the current from lightning or other high-energy electrical phenomena. This current needs to be quickly conducted into the lightning protection system and effectively dissipated to protect buildings and other equipment from damage. At this time, the high-voltage lead 2 transmits the current to the conductive terminal 4 by connecting with the conductive base 1. The conductive terminal 4 is the core node for the transfer of current from the high-voltage lead 2 to the low-voltage lead 3. It is made of copper alloy with corrosion resistance and high conductivity, which ensures that the material will not lose its effectiveness due to changes in the external environment or long-term exposure, while minimizing resistance loss during transmission, thereby improving efficiency.

[0062] Next, under the impact of high energy instantaneous, good electrical connection is particularly important. For this purpose, a special metal spring 5 is installed on the conductive connector 4, used to maintain and enhance the continuous stable pressure contact between the high voltage lead 2 and the low voltage lead 3. This design ensures that even in the face of instantaneous strong current peak or long-term repeated fatigue test, the intermetallic remains tightly bound, preventing abnormal resistance rise caused by loose, slip and other situations, avoiding the risk of circuit break caused by metal particle migration.

[0063] In order to ensure the safety and reliability of the internal structure of the lightning protection device, an important protective barrier - the insulating sleeve 6, which is carefully designed and installed on the periphery, is indispensable. This protective layer covers the high voltage lead 2, the low voltage lead 3 and the conductive connector 4, forming a solid shield line, so that these core components are protected from the influence of the surrounding environment (such as moisture, dust, mechanical wear, etc.), not only increasing the working life of the whole device, but also effectively preventing the possibility of danger caused by any form of accidental leakage.

[0064] Finally, the low voltage lead 3 is responsible for finally guiding the current after processing to the safe path until the grounding terminal completes the discharge process, realizing good control and shunt effect of the current path, thus providing more secure and reliable protection measures for users. In summary, the centralized combination type lightning protection device, with the above-mentioned key components working together, forms a precise and orderly system, providing a comprehensive and efficient protection scheme for buildings and other important infrastructure in bad weather conditions.

[0065] The exemplary systems and methods of the present application have been specifically shown and described herein in connection with the exemplary embodiments, but it will be understood that many other modifications, modifications, and variations of the described systems and methods can be made therein by those skilled in the art without departing from the spirit and scope of the application as defined in the appended claims.

Claims

1. A centralized combined lightning protector, characterized by, The utility model relates to a lightning arrester, which comprises: a conductive base (1) for fixing and supporting the whole lightning arrester; a high-voltage lead (2) connected with the conductive base (1) for leading lightning current; a low-voltage lead (3) connected with the conductive base (1) for leading current to the ground end; a conductive joint (4) arranged between the high-voltage lead (2) and the low-voltage lead (3) for connecting the high-voltage lead (2) and the low-voltage lead (3) and providing good electrical contact; a metal spring (5) installed on the conductive joint (4) for increasing the contact pressure between the conductive joint (4) and the high-voltage lead (2) and the low-voltage lead (3); an insulating sleeve (6) wrapped outside the high-voltage lead (2), the low-voltage lead (3) and the conductive joint (4) for insulation protection; wherein a heat insulation ring (13) is arranged between the conductive joint (4) and the metal spring (5); and the conductive base (1) is provided with a groove (7) for fixing and supporting the conductive joint (4), and the bottom of the groove (7) is provided with a plurality of through holes (8) for facilitating heat dissipation.

2. The centralized combined lightning protector according to claim 1, characterized in that: The connection between the high-voltage lead (2) and the conductive base (1) is provided with a reinforcing ring (9).

3. The centralized combined lightning protector according to claim 1, wherein: The connection between the low-voltage lead (3) and the conductive base (1) is provided with a shockproof ring (10) for absorbing vibration.

4. The centralized combined lightning protector according to claim 1, wherein: The surface of the conductive joint (4) is covered with a layer of nano-silver film (11).

5. The centralized combined lightning protector according to claim 1, wherein: The metal spring (5) has a double-layer structure, the outer layer is made of high-strength stainless steel spring, and the inner layer is made of high-conductivity copper alloy spring.

6. The centralized combined lightning protector according to claim 1, wherein: The insulating sleeve (6) is internally provided with a plurality of longitudinal heat dissipation fins (12).

7. The centralized combined lightning protector according to claim 1, wherein: The size of the conductive base (1) is greater than the sum of the diameters of the high-voltage lead (2) and the low-voltage lead (3).

8. The centralized combined lightning protector according to claim 1, wherein: The conductive joint (4) is provided with conductive sheets (14) on both sides.

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