Integrated graphite gap lightning protection module

Abstract

According to the integrated graphite gap lightning protection module provided by the utility model, the heat conduction columns are arranged at the bottom of the accommodating cavity and on the inner side of the cover plate in an array manner, and the insulating partition plates are arranged on the heat conduction columns, so that the heat conduction area is obviously increased, and the heat generated by the graphite gap lightning protection module is effectively and quickly conducted out of the accommodating cavity; the graphite gap lightning protection assembly is prevented from being overheated due to heat accumulation to affect the service life or cause safety accidents, and the performance stability of the lightning protection module is improved. And secondly, the insulating partition plate is composed of a flame-retardant layer, a heat conduction silica gel layer and an insulating base material layer, the heat conduction efficiency in the containing cavity is further improved through the arrangement of the heat conduction silica gel layer, flame propagation in the shell can be blocked through the flame-retardant layer, fire can be prevented from spreading in the shell, and the fire risk is reduced. And finally, the shell and the cover plate are each composed of a high-strength base material layer, a fireproof layer and a corrosion-resistant layer, the arrangement of the fireproof layers can effectively block propagation of flames inside and outside the shell and the cover plate, and the fireproof safety of the lightning protection module is improved.

Description

Technical Field

[0001] This utility model relates to the field of surge protector technology, and in particular to an integrated graphite gap surge protection module. Background Technology

[0002] In power systems, communication networks, and various electronic devices, lightning overvoltage protection is a crucial aspect of ensuring the safe and stable operation of equipment. With the rapid development of modern electronic technology, various electronic devices are increasingly moving towards integration, miniaturization, and high sensitivity, but their tolerance to lightning overvoltage has significantly decreased, posing a more severe challenge to lightning protection technology.

[0003] Graphite gap surge protectors are a type of traditional surge protector. However, due to the instantaneous high temperature generated by graphite materials during breakdown discharge, and the densely stacked multi-layer structure making it difficult for heat to dissipate quickly, the internal temperature of the surge protector cannot be dissipated from the casing in time. This leads to excessively high internal temperatures, which in turn accelerate the oxidation or carbonization of graphite and the insulating layer, causing changes in the gap distance, affecting the stability of the breakdown voltage, shortening the device lifespan, and even causing short-circuit failure.

[0004] Therefore, there is an urgent need for a multilayer graphite gap surge protector with reliable heat dissipation performance to meet the application requirements. Utility Model Content

[0005] Based on the requirement for efficient heat dissipation in existing multi-layer graphite gap surge protectors, this utility model provides an integrated graphite gap surge protection module.

[0006] An integrated graphite gap surge protection module includes a housing and a cover plate; a receiving cavity with one end open is formed inside the housing; a plurality of limiting blocks are provided on the sidewalls of the receiving cavity; an elastic buffer block is provided at the end of each limiting block; a plurality of heat-conducting columns are arrayed on the bottom of the receiving cavity and on the side of the cover plate near the receiving cavity; an insulating partition is provided on each heat-conducting column; a graphite gap surge protection component is provided on the insulating support plate at the bottom of the receiving cavity, and the elastic buffer block abuts against the outer edge of the graphite gap surge protection component; the cover plate is used to cover and close the opening of the receiving cavity. This allows the insulating partition on the cover plate to abut against the graphite gap lightning protection component; each insulating partition includes a thermally conductive silicone layer, an insulating substrate layer, and a flame-retardant layer arranged sequentially away from the graphite gap lightning protection component, and the thermally conductive column penetrates the flame-retardant layer and connects to the insulating substrate layer; both the housing and the cover plate include a high-strength substrate layer and a fire-resistant layer and a corrosion-resistant layer arranged sequentially on the outside of the high-strength substrate layer; one side of the housing is also provided with a temperature control alarm for alerting when the temperature inside the housing is too high and a power supply module electrically connected to the temperature control alarm.

[0007] Furthermore, the flame-retardant layer is a polyimide coating or a silicone rubber coating; the insulating substrate layer is an epoxy resin base layer.

[0008] Furthermore, the high-strength substrate layer is a polyphenylene sulfide plastic layer; the fire-resistant layer is a silicon carbide material layer; and the corrosion-resistant layer is a polytetrafluoroethylene layer.

[0009] Furthermore, several heat dissipation holes are provided on both sides of the outer shell, and each heat dissipation hole is provided with a filter screen.

[0010] Furthermore, the temperature control alarm includes a temperature sensor fixedly installed inside the housing, a buzzer mounted on the housing, and a micro circuit board; the temperature sensor and the buzzer are electrically connected to the micro circuit board respectively.

[0011] Furthermore, the power supply module includes a battery compartment mounted on the side wall of the housing, the battery compartment being electrically connected to the micro circuit board, and a plurality of button batteries being installed inside the battery compartment.

[0012] Furthermore, the housing is provided with a battery mounting port that communicates with the battery compartment, and the battery mounting port is provided with a removable sealing plate.

[0013] Furthermore, several strip-shaped grooves are provided on both outer sides of the housing to facilitate insertion and removal of the housing.

[0014] Furthermore, the graphite gap surge protection assembly includes a base and a top seat, with a graphite gap module clamped and fixed between the base and the top seat; an electrode is provided on each side of the base, the pins of the electrode extend out of the housing, and the inner ends of the electrode form a surface contact electrical connection with the graphite gap module; the graphite gap module includes several graphite sheets arranged side by side, and an insulating sheet is provided between adjacent graphite sheets; a control circuit board electrically connected to the graphite gap assembly is provided above the top seat, and several metal spring pins are welded to the upper and lower surfaces of the control circuit board, which respectively make elastic contact with the graphite sheets, and several capacitors corresponding to the metal spring pins are electrically connected to the control circuit board.

[0015] Furthermore, the sides of both ends of the electrode are respectively attached to the base and the top seat, and are fixedly connected to the base and the top seat by screws.

[0016] The beneficial effects of this utility model are as follows: This utility model provides an integrated graphite gap surge protection module. Through the array of heat-conducting columns arranged at the bottom of the housing and the inner side of the cover plate, and the insulating partition on the heat-conducting columns, the heat conduction area is significantly increased. This effectively and quickly conducts the heat generated by the graphite gap surge protection component to the outside of the housing, preventing heat accumulation that could lead to overheating of the graphite gap surge protection component, affecting its service life or causing safety accidents, thus improving the performance stability of the surge protection module. Secondly, the insulating partition consists of a flame-retardant layer, a thermally conductive silicone layer, and an insulating substrate layer. The thermally conductive silicone layer further improves the heat conduction efficiency inside the housing, while the flame-retardant layer can block the spread of flames inside the shell, preventing the fire from spreading inside the shell and reducing the risk of fire.

[0017] Finally, the casing consists of a high-strength base material layer, a fire-resistant layer, and a corrosion-resistant layer. The high-strength base material layer and the corrosion-resistant layer give the casing and cover plate excellent strength and corrosion resistance, preventing damage from drops and external corrosion. This effectively protects the internal graphite gap components, thereby extending the lifespan of the surge protection module. The fire-resistant layer effectively blocks the propagation of flames inside and outside the casing, improving the fire safety of the surge protection module.

[0018] In addition, the temperature control alarm will alert the user when the casing temperature is too high, helping the user to detect and deal with overheating in a timely manner and improving the safety of the surge protection module. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of an integrated graphite gap lightning protection module provided by this utility model;

[0020] Figure 2 A side view of an integrated graphite gap lightning protection module provided by this utility model;

[0021] Figure 3 A schematic diagram of the internal structure of an integrated graphite gap lightning protection module provided by this utility model;

[0022] Figure 4 for Figure 3 A magnified structural diagram of part A;

[0023] Figure 5 A cross-sectional structural diagram of the shell, heat-conducting column, and insulating partition provided by this utility model;

[0024] Figure 6 A schematic diagram of the structure of the cover plate and insulating partition provided by this utility model;

[0025] Figure 7 A cross-sectional structural diagram of the cover plate and insulating partition provided by this utility model.

[0026] Attached Figure

[0027] 1. Housing; 101. Receiving cavity; 102. High-strength substrate layer; 103. Fire-resistant layer; 104. Corrosion-resistant layer; 2. Cover plate; 3. Limiting block; 4. Elastic buffer block; 5. Heat-conducting column; 6. Insulating partition; 61. Thermally conductive silicone layer; 62. Insulating substrate layer; 63. Flame-retardant layer; 7. Base; 8. Top seat; 9. Graphite gap assembly; 901. Graphite sheet; 902. Insulating sheet; 10. Electrode 101. Pin; 11. Control circuit board; 12. Metal spring pin; 13. Capacitor; 14. Temperature control alarm; 141. Temperature sensor; 142. Buzzer; 143. Micro circuit board; 144. Sealing plate; 15. Battery compartment; 16. Button battery; 17. Strip groove; 18. Heat dissipation hole. Detailed Implementation

[0028] To provide a more detailed description of this utility model, the following description is provided in conjunction with the accompanying drawings. It should be noted that the embodiments described below are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0029] refer to Figure 1 and Figure 3 As shown, an integrated graphite gap surge protection module includes a housing 1 and a cover plate 2.

[0030] Specifically, refer to Figure 5 , Figure 6 and Figure 7 As shown, both the housing 1 and the cover plate 2 include a high-strength substrate layer 102 and a fire-resistant layer 103 and a corrosion-resistant layer 104 sequentially disposed on the outer side of the high-strength substrate layer 102. In this embodiment, the high-strength substrate layer is a polyphenylene sulfide plastic layer; the fire-resistant layer is a silicon carbide material layer; and the corrosion-resistant layer is a polytetrafluoroethylene layer.

[0031] The high-strength substrate layer 102 and the corrosion-resistant layer 104 give the housing 1 and cover plate 2 good strength and corrosion resistance, preventing damage and external corrosion after impact. They also effectively protect the graphite gap components inside the housing 1, thereby extending the lifespan of the surge protection module. The fire-resistant layer 103 effectively blocks the spread of flames inside and outside the housing 1 and cover plate 2, improving the fire safety of the surge protection module.

[0032] By incorporating a high-strength substrate layer 102, a fire-resistant layer 103, and a corrosion-resistant layer 104, the shell 1 and the cover plate 2 acquire characteristics of high temperature resistance, mechanical impact resistance, and corrosion resistance, significantly improving the reliability, safety, and service life of the shell 1 and the cover plate 2.

[0033] The housing 1 forms a receiving cavity 101 with one end open; the side walls of the receiving cavity 101 are provided with a plurality of limiting blocks 3; the end of each limiting block 3 is provided with an elastic buffer block 4. The bottom of the receiving cavity 101 and the side of the cover plate 2 near the receiving cavity 101 are provided with a plurality of heat-conducting columns 5 arranged in an array; each heat-conducting column 5 is provided with an insulating partition 6.

[0034] The heat-conducting columns 5 arranged in an array at the bottom of the cavity 101 and the inner side of the cover plate 2, and the insulating partition 6 set on the heat-conducting columns 5, significantly increase the heat conduction area. This effectively and quickly conducts the heat generated by the graphite gap surge protection component through the insulating partition 6 and the heat-conducting columns 5 to the outside of the cavity 101, avoiding heat accumulation that could cause the graphite gap surge protection component to overheat, affecting the service life of the surge protection module or causing a safety accident, thereby improving the performance stability of the surge protection module.

[0035] Each insulating partition 6 includes a flame-retardant layer 63, an insulating substrate layer 62, and a thermally conductive silicone layer 61 arranged sequentially along the distance from the graphite gap lightning protection component; and the thermally conductive column 5 penetrates the flame-retardant layer 63 and connects to the insulating substrate layer 62; in this embodiment, the flame-retardant layer 63 is a polyimide coating or a silicone rubber coating; and the insulating substrate layer 62 is an epoxy resin base layer.

[0036] The thermally conductive silicone layer 61 enables the rapid conduction of heat generated by the graphite gap surge protector to the insulating substrate layer 62, which then dissipates the heat directly through the heat-conducting pillars 5. This further enhances the heat conduction efficiency within the housing 101, effectively preventing heat accumulation inside the shell 1 and improving safety. The flame-retardant layer 63 blocks the spread of flames within the shell 1 and cover 2, preventing the fire from spreading and reducing the risk of fire. The heat-conducting pillars 5, penetrating the flame-retardant layer 63 and connecting it to the insulating substrate layer 62, prevent the flame-retardant layer 63 from carbonizing and reducing its heat dissipation performance under high temperatures.

[0037] A graphite gap lightning protection component (not shown in the figure) is provided on the insulating support plate 6 at the bottom of the receiving cavity 101, and the elastic buffer block 4 abuts against the outer edge of the graphite gap lightning protection component. The cover plate 2 is used to cover and close the opening of the receiving cavity 101, so that the insulating partition 6 on the cover plate 2 abuts against the graphite gap lightning protection component.

[0038] The limiting block 3 ensures the precise positioning of the graphite gap surge protector within the receiving cavity 101 and fixes the graphite gap surge protector within the housing 1, preventing displacement caused by vibration or external force from affecting normal use. The elastic buffer layer 4 reduces frictional damage when in contact with the graphite gap surge protector and also disperses and buffers external impact forces received by the graphite gap surge protector, thus protecting the graphite gap surge protector.

[0039] After the cover plate 2 is used to cover and close the opening of the receiving cavity 101, an insulating space is formed between the insulating partition 6 on the cover plate 2 and the insulating partition 6 inside the housing 1 to accommodate the graphite gap surge protection component. This allows the heat generated by the graphite gap surge protection component to be quickly dispersed to both sides, improving heat dissipation performance while maintaining the stability of the electrical performance of the surge protection module.

[0040] refer to Figure 3 As shown, the graphite gap module includes a base 7 and a top seat 8, with a graphite gap assembly 9 clamped and fixed between the base 7 and the top seat 8. An electrode 10 is provided on each side of the base 7, with pins 101 extending out of the housing 1, and the inner ends of the electrodes 10 forming a surface contact electrical connection with the graphite gap assembly 9. In this embodiment, the sides of both ends of the electrodes 10 are respectively attached to the base 7 and the top seat 8, and are fixedly connected to the base 7 and the top seat 8 by screws.

[0041] The graphite gap assembly 9 includes several graphite sheets 901 arranged side by side, and an insulating sheet 902 is provided between each adjacent graphite sheet; a control circuit board 11 electrically connected to the graphite gap assembly 9 is provided above the top seat 8; several metal spring pins 12 are welded to the upper and lower surfaces of the control circuit board 11, which are respectively in elastic contact with the graphite sheets 901; and several capacitors 13 are electrically connected to the control circuit board 11, which are correspondingly connected to the metal spring pins 12.

[0042] The metal spring pin 12 on the lower surface of the control circuit board contacts the graphite sheet 901 in the graphite gap assembly 9 to form a wiring circuit. The electrodes 10 on both sides of the graphite gap assembly 9 are connected to the power supply. The metal spring pin 12 is connected to the capacitor 13, forming two sets of left-right symmetrical surge protection circuits in the surge protector. The surge passes from one electrode 10 of the graphite gap assembly 9 to the other electrode 10, through the graphite sheet 901 and the insulating sheet 902, and then through the metal spring pin 12 to the corresponding connected capacitor 13, thus forming surge protection.

[0043] refer to Figure 3 and Figure 4 As shown, a temperature control alarm 14 for alerting when the temperature inside the housing 1 is too high and a power supply module (not shown in the figure) electrically connected to the temperature control alarm 14 are also provided on one side of the housing 1.

[0044] The temperature control alarm 14 includes a temperature sensor 141 fixedly disposed inside the housing 1, a buzzer 142 mounted on the housing 1, and a micro circuit board 143; the temperature sensor 141 and the buzzer 142 are electrically connected to the micro circuit board 143 respectively.

[0045] When the temperature sensor detects that the temperature inside the housing 1 exceeds a preset threshold, the micro circuit board 142 controls the buzzer 142 to sound an alarm. This preset threshold is the maximum temperature at which the surge protector operates normally; the buzzer 142 sounds when the temperature is below the preset threshold.

[0046] With the temperature control alarm 14 in place, when the temperature of the housing 1 is too high, the temperature control alarm 14 will issue a warning, which helps users to detect and deal with the overheating situation in a timely manner, and improves the safety of the surge protection module.

[0047] The power supply module includes a battery compartment 25 installed on the side wall of the housing 1. The battery compartment 25 is electrically connected to the micro circuit board 142, and several button batteries 16 are installed in the battery compartment 15 to power the temperature control alarm 14.

[0048] The housing 1 is provided with a battery mounting port (not shown in the figure) that communicates with the battery compartment 15, and the battery mounting port is provided with a removable sealing plate 144.

[0049] refer to Figure 2 As shown, several heat dissipation holes 6 are provided on both sides of the outer shell 1, and each heat dissipation hole 6 is provided with a filter screen (not shown in the figure).

[0050] The heat dissipation holes 18 on both sides of the housing 1 form a through-ventilation channel, accelerating the exhaust of internal hot air. This, combined with the active heat conduction of the heat-conducting pillars 5 and the insulating partition 6, complements each other to form a good heat dissipation mechanism. The filters built into the heat dissipation holes 18 can block dust, metal particles, and corrosive liquids from entering the housing 1, protecting the graphite gap surge protection components from contamination or short-circuit risks.

[0051] The outer sides of the housing 1 are provided with several strip-shaped grooves 17 to facilitate insertion and removal of the housing 1. In this embodiment, the strip-shaped grooves 17 are located above the heat dissipation holes 18.

[0052] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model and do not limit the utility model to the specific implementations described. Obviously, other modifications and variations can be made based on the content of this specification. The embodiments selected and specifically described in this specification are intended to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. They are not intended to limit the utility model, and any simple modifications to this utility model fall within the protection scope of this utility model.

Claims

1. An integrated graphite gap surge protection module, characterized in that, It includes a housing and a cover plate; a receiving cavity with an opening at one end is formed inside the housing; The sidewalls of the receiving cavity are provided with a number of limiting blocks; the end of each limiting block is provided with an elastic buffer block; the bottom of the receiving cavity and the cover plate near the receiving cavity are each provided with a number of heat-conducting columns arranged in an array; each heat-conducting column is provided with an insulating partition. A graphite gap lightning protection component is provided on the insulating support plate at the bottom of the receiving cavity, and the elastic buffer block abuts against the outer edge of the graphite gap lightning protection component; the cover plate is used to cover and close the opening of the receiving cavity, so that the insulating partition on the cover plate abuts against the graphite gap lightning protection component; Each insulating partition includes a thermally conductive silicone layer, an insulating substrate layer, and a flame-retardant layer arranged sequentially along the distance from the graphite gap lightning protection component, and the thermally conductive column penetrates the flame-retardant layer and connects to the insulating substrate layer. Both the shell and the cover plate include a high-strength base material layer and a fire-resistant layer and a corrosion-resistant layer sequentially disposed on the outside of the high-strength base material layer; The housing is also equipped with a temperature control alarm for alerting when the internal temperature of the housing is too high, and a power supply module electrically connected to the temperature control alarm.

2. The integrated graphite gap lightning protection module of claim 1, wherein, The flame-retardant layer is a polyimide coating or a silicone rubber coating; the insulating substrate layer is an epoxy resin base layer.

3. The integrated graphite gap lightning protection module of claim 1, wherein, The high-strength substrate layer is a polyphenylene sulfide plastic layer; the fire-resistant layer is a silicon carbide material layer; and the corrosion-resistant layer is a polytetrafluoroethylene layer.

4. The integrated graphite gap lightning protection module of claim 1, wherein, The outer sides of the housing are provided with several heat dissipation holes, and each heat dissipation hole is provided with a filter screen.

5. The integrated graphite gap lightning protection module of claim 1, wherein, The temperature control alarm includes a temperature sensor fixedly installed inside the housing, a buzzer mounted on the housing, and a micro circuit board; the temperature sensor and the buzzer are electrically connected to the micro circuit board respectively.

6. The integrated graphite gap lightning protection module of claim 5, wherein, The power supply module includes a battery compartment mounted on the side wall of the housing. The battery compartment is electrically connected to the micro circuit board, and several button batteries are installed inside the battery compartment.

7. The integrated graphite gap lightning protection module of claim 6, wherein, The housing is provided with a battery mounting port that communicates with the battery compartment, and the battery mounting port is provided with a removable sealing plate.

8. The integrated graphite gap lightning protection module of claim 1, wherein, The outer sides of the housing are provided with several strip-shaped grooves to facilitate insertion and removal of the housing.

9. The integrated graphite gap lightning protection module of claim 1, wherein, The graphite gap surge protection assembly includes a base and a top seat, with a graphite gap module clamped and fixed between the base and the top seat. An electrode is provided on each side of the base, with the electrode pins extending out of the housing, and the inner ends of the electrodes forming a surface-contact electrical connection with the graphite gap module. The graphite gap module includes several graphite sheets arranged side-by-side, with an insulating sheet between adjacent graphite sheets. A control circuit board electrically connected to the graphite gap assembly is provided above the top seat. Several metal spring pins, each in elastic contact with the graphite sheets, are welded to the upper and lower surfaces of the control circuit board. Several capacitors corresponding to the metal spring pins are electrically connected to the control circuit board.

10. The integrated graphite gap lightning protection module of claim 9, wherein, The sides of the two ends of the electrode are respectively attached to the base and the top seat, and are fixedly connected to the base and the top seat by screws.

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