Gap module and combined gap type surge protection device

Abstract

The utility model discloses a gap module and a combined gap type surge protection device, and the combined gap type surge protection device is formed by combining gap modules and comprises a first gap module, a second gap module and a housing. The first gap module and the second gap module are arranged side by side and are respectively clamped in the shell; the first gap module is provided with a busbar, and the busbar is used for being fixed to the second gap module. And a plurality of second gap modules are arranged. The utility model provides a structure form of a multi-layer gap type surge protection device with a tripping function under large current flow, and the safety of product application is improved. According to the designed tripping mechanism, the microswitch is arranged on one side close to the separation structural member, so that the problem that the side separation structural member cannot slide smoothly after being heated is solved, and the separation reliability is improved. The first spring is effectively isolated from the live part, and an arc path is prevented from being formed along the spring after the disconnector acts.

Description

Technical Field

[0001] The utility model relates to the technical field of overvoltage protection, in particular to a gap module and a combined gap-type surge protector. Background Art

[0002] Surge protectors are electrical devices used to limit transient overvoltages and discharge surge currents. Gap-type surge protectors consist of a discharge gap and a trigger circuit. When a gap-type surge protector is not in operation, the internal discharge gaps are insulated from each other, and the entire surge protector is in a high-resistance state to the outside, which does not affect the operation of the protected line. When a surge arrives, the trigger circuit in the gap-type surge protector triggers the discharge gap to conduct, and finally the entire surge protector is in a low-resistance state to the outside, thereby discharging the surge energy.

[0003] Multi-channel combination products are connected to each other, and the protection level is closely related to the circuit form, line path, etc. In the combination product, the size is restricted, and multiple gap movements are wrapped in the shell, and the current is closely related to the gap electrode size, line path, structural tightness, heat dissipation, etc. In the combination product, the current capacity is difficult to guarantee.

[0004] Due to various reasons, power supply systems often have abnormal overvoltages. When long-term, high-frequency abnormal overvoltages occur, surge protectors may be frequently activated, causing short circuits and fires. The safety of surge protectors can be improved by setting up a disengagement structure. In engineering, it is necessary to solve the problems of the spring of the disengagement mechanism being weakened or losing its elasticity due to arc erosion, the arc path being formed along the spring after the disengagement device is activated, and the side disengagement structure being unable to slide smoothly due to heat, etc., to improve the reliability of the disengagement device.

[0005] Therefore, it is necessary to design a multi-layer gap surge protector with a compact structure, large current flow and integrated disconnector to increase the safety of product application, improve the current flow capacity and improve the overall performance. Utility Model Content

[0006] In view of this, the utility model provides a gap module and a combined gap-type surge protector, providing a structure of a multi-layer gap-type surge protector with a large through-current and a tripping function, thereby increasing the safety of product application.

[0007] In order to solve the above technical problems, the utility model provides a gap module, including:

[0008] A gap component, wherein a disengagement mechanism is provided on the gap component, and the disengagement mechanism is movably connected to the gap component via a disengagement welding point;

[0009] The disengagement mechanism includes a disengagement sheet and a disengagement structure. One end of the disengagement sheet is clamped on the buckle of the gap assembly, and the other end is welded to the disengagement welding point. One end of the disengagement structure contacts the end of the disengagement sheet close to the disengagement welding point.

[0010] The disengagement mechanism is arranged on the narrow side edge of the gap component. The gap component is also provided with a micro switch and a first spring on the side close to the disengagement structure. When the disengagement piece is separated from the disengagement welding point, the disengagement structure moves along the extension and contraction direction of the first spring, squeezing the disengagement piece to separate the disengagement piece from the disengagement welding point.

[0011] As an optional method, the detachment piece is bent and fixed by snapping on the side of the gap component where the detachment welding point is not provided; a stop surface is also provided at the end of the detachment piece welded to the detachment welding point, and the stop surface is tilted relative to the detachment piece.

[0012] As an optional manner, the tilting angle of the stop surface is 20-80°, and the length of the tilting portion is 1.5-6 mm.

[0013] As an optional method, the disengagement structure also includes an arc shielding plate; the disengagement structure is movably fixed on the guide rail groove of the gap component; the arc shielding plate is inclined to be used for contact and matching with the stop surface.

[0014] As an optional manner, the disengagement structure is provided with a spring positioning hole, and the first spring is installed in the spring positioning hole.

[0015] As an optional method, the spring positioning hole includes a first opening and a second opening, the first opening is used to set the first spring, and the second opening is set with the second spring; one end of the first spring is fixed to the gap assembly, and one end of the second spring is fixed with an insulating sleeve.

[0016] As an optional manner, the ejection angle of the disengagement structure is 0-30°.

[0017] As an optional method, it also includes an auxiliary disengagement mechanism applied to the disengagement sheet, the auxiliary disengagement mechanism is arranged on the narrow side edge of the gap component, and the disengagement direction of the auxiliary disengagement mechanism is not parallel to the direction of the disengagement mechanism; the auxiliary disengagement mechanism can be an elastic structure.

[0018] As an optional manner, there is a gap between the separation structure and the gap component, and the gap distance is 0.1-2 mm.

[0019] As an optional manner, the movement direction of the spring of the micro switch is not parallel to the disengagement direction of the disengagement structure.

[0020] As an optional approach, the gap component is in a closed configuration.

[0021] As an optional manner, the spring is arranged on a side of the disengagement structure close to the disengagement piece or on a side away from the disengagement piece.

[0022] As an optional manner, the spring of the micro switch is perpendicular to the disengagement direction of the disengagement structure in the east direction.

[0023] On the other hand, the utility model also provides a combined gap type surge protector, which is composed of the gap modules as described above, as an optional method, including:

[0024] A first gap module, a second gap module and a housing;

[0025] The first gap module and the second gap module are arranged side by side and are respectively clamped in the housing; the first gap module is provided with a busbar, which is used to be fixed with the second gap module; wherein the second gap module is provided with at least one;

[0026] The shell includes a base and an upper cover matching the base; the base is used to form a accommodating and carrying platform for accommodating the first gap module and the second gap module, and the upper cover is used to cover the edge of the base to form a fixation.

[0027] As an optional method, a plurality of holes are provided on the busbar, and the holes include large holes for tin passing and small holes for positioning which are arranged in a staggered manner.

[0028] As an optional method, the base also includes a micro switch assembly and a remote signal terminal.

[0029] As an optional manner, the upper cover is provided with a plurality of windows, the opening positions of the windows match the positions of any gap modules, and are used to observe the sliding of the disengagement mechanism of the gap module.

[0030] As an option, any gap module can be an N-PE large flow module.

[0031] The beneficial effects of the utility model are:

[0032] The utility model provides a structural form of an integrated multi-layer gap type surge protector with strong current carrying capacity and tripping, which increases the safety of product application. The designed tripping mechanism is provided with a micro switch on the side close to the disengagement structure, which solves the problem that the side disengagement structure cannot slide smoothly due to heat, and improves the disengagement reliability. The first spring is effectively isolated from the live parts to prevent the arc path from being formed along the spring after the disengagement device is actuated. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the gap module structure provided in Example 1 of the utility model;

[0034] Figure 2A schematic diagram of the structure of the release sheet provided in Example 1 of the utility model;

[0035] Figure 3 A schematic diagram of the structure of the disengagement structure provided in Example 1 of the utility model;

[0036] Figure 4 A cross-sectional schematic diagram of a disengagement mechanism provided in Example 1 of the utility model;

[0037] Figure 5 A schematic diagram of the connecting strip structure provided in Example 1 of the utility model;

[0038] Figure 6 A schematic diagram of the local structure of the stop surface connection provided in Example 1 of the utility model;

[0039] Figure 7 A schematic diagram of an auxiliary disengagement mechanism provided in Example 1 of the utility model;

[0040] Figure 8 A schematic diagram of the disengagement direction of the disengagement structural member provided in Example 1 of the utility model;

[0041] Fig. 9 A schematic diagram of the positional relationship between the disengagement structure and the gap assembly provided in Example 1 of the utility model;

[0042] Fig.10 A schematic diagram of the spring positioning hole structure provided in Example 1 of the utility model;

[0043] Fig.11 A schematic diagram of the arrangement relationship between the micro switch and the gap assembly provided in Example 1 of the utility model;

[0044] Fig.12 A schematic diagram of the structure of a pull-type disengagement mechanism provided in Example 1 of the utility model;

[0045] Fig.13 A schematic diagram of the relationship between the micro switch and the disengagement structure provided in Example 1 of the utility model;

[0046] Fig.14 A schematic diagram of a combined gap-type surge protector core assembly provided in Example 2 of the utility model;

[0047] Fig.15 A schematic diagram of the arrangement of gap modules provided in Example 2 of the present utility model;

[0048] Fig.16 A schematic diagram of the assembly of one N1 and three L-pole gap modules provided in Example 2 of the utility model;

[0049] Fig.17A schematic diagram of the assembly of one N2 and three L-pole gap modules provided in Example 2 of the utility model;

[0050] Fig.18 This is a schematic diagram of assembling four L-pole gap modules provided in Example 2 of the present utility model;

[0051] Fig.19 A schematic diagram of the structure of the first gap module provided in Example 2 of the utility model;

[0052] Fig. 20 A schematic diagram of the structure of the third gap module provided in Example 2 of the utility model;

[0053] Fig.21 Schematic diagram of two configuration modes of the bus provided in Embodiment 2 of the utility model;

[0054] Fig. 22 A cross-sectional view of an N-PE large flow module provided in Example 2 of the utility model;

[0055] Fig.23 A schematic diagram of a circuit diagram provided for Embodiment 2 of the present utility model;

[0056] Fig.24 A schematic diagram of a circuit structure in a case provided by Embodiment 2 of the present utility model;

[0057] Fig.25 A schematic diagram of a circuit structure in another case provided for Embodiment 2 of the present utility model;

[0058] Fig.26 A schematic diagram of a circuit structure in another case provided for Embodiment 2 of the present utility model;

[0059] Fig. 27 A schematic diagram of a circuit structure in another case provided for Embodiment 2 of the present utility model;

[0060] Fig.28 A schematic diagram of a circuit structure in another case provided for Embodiment 2 of the present utility model;

[0061] Fig.29 A schematic diagram of a circuit structure in another case provided for Embodiment 2 of the present utility model;

[0062] Fig.30 This is a schematic diagram of the circuit structure in another case provided in Example 2 of the utility model.

[0063] Figure numerals and their corresponding relationships: 1-gap assembly, 11-clip, 12-positioning column, 13-guide rail groove, 14-insulating sleeve, 2-detachment sheet, 21-detachment sheet slot, 22-stop surface, 23-detachment point soldering surface, 3-detachment structure, 31-first spring, 32-second spring, 33-arc shielding plate, 34-spring positioning hole, 35-micro switch spring limit surface, 4-detachment soldering point, 51-upper cover, 511-window, 52-base, 5 31-first gap module, 532-second gap module, 533-third gap module, 6-micro switch, 61-remote signal terminal, 62-micro switch assembly, 63-micro switch button, 7-auxiliary disengagement mechanism, 8-connecting strip, 81-inclined surface, 82-connecting strip positioning column, 83-A surface, 84-B surface, 85-connecting strip slot, 9-bus, 91-bus positioning small hole, 92-bus release point, 93-bus tinning large hole. DETAILED DESCRIPTION

[0064] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0065] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0066] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0067] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0068] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] Example 1

[0070] See also Figure 1-Figure 13 The present embodiment provides a gap module, comprising: a gap component 1, a disengagement mechanism is provided on the gap component 1, and the disengagement mechanism is movably connected to the gap component 1 through a disengagement welding point 4; the disengagement mechanism comprises a disengagement sheet 2 and a disengagement structure 3, one end of the disengagement sheet 2 is clamped on the gap component 1, and the other end thereof is welded to the disengagement welding point 4; one end of the disengagement structure 3 is in contact with an end of the disengagement sheet 2 close to the disengagement welding point 4; wherein the disengagement structure 3 is provided with a micro switch 6 and a first spring 31, and when the disengagement sheet is separated from the disengagement welding point 4, the disengagement structure 3 moves along the extension direction of the first spring 31, squeezes the disengagement sheet 2 to separate the disengagement sheet 2 from the disengagement welding point 4, and releases the micro switch 6 to form surge protection.

[0071] In this embodiment, it should be noted that the disengagement mechanism is arranged on the narrow side edge of the gap component 1, so as to avoid the problem that the movement heats up and expands on the wide side edge, that is, in the plane on the side with a larger surface area of ​​the movement, causing the disengagement mechanism to be blocked by the molten protrusion and unable to slide. The driving force of the disengagement mechanism is a push type, and it can also be a pull type. The disengagement structure 3 and the disengagement sheet 2 of the push-type disengagement mechanism are respectively located on the front and rear sides of the tripping point, and the disengagement structure 3 and the disengagement sheet 2 of the pull-type disengagement mechanism are located on the same side of the tripping point, which can be achieved by setting a spring on the side of the disengagement structure 3 close to the disengagement sheet 2. This embodiment uses a push-type disengagement mechanism as a description, but it does not limit the disengagement method.

[0072] The detachment structure 3 and the detachment sheet 2 are respectively located at the front and rear sides of the detachment welding point 4. The detachment welding point 4 can be set as a soldering surface and welded to the detachment point soldering surface 23 of the detachment sheet 2. This embodiment does not limit the specific restriction method. The detachment sheet 2 is bent and fixed to the side of the gap component 1 where the detachment welding point 4 is not set by snap connection. A stop surface 22 is also provided at one end of the detachment sheet 2 welded to the detachment welding point 4. The stop surface 22 is tilted relative to the detachment sheet 2. The tilting angle of the stop surface 22 can be 20-80°, and the length h2 of the tilted part is 1.5-6mm. The other end formed by the detachment sheet 2 after bending is provided with a slot for providing an upper and lower fixed limit mechanism for the detachment sheet 2. As an optional method, the detachment structure 3 is an insulating member, and an arc shielding plate 33 is provided at the end to construct an electrical isolation between the detachment sheet 2 and the detachment welding point 4, and a positioning hole of a certain depth is provided for positioning the first spring 31. The disengagement structure 3 is movably fixed on the guide groove 13 of the gap assembly 1. Optionally, the extension direction of the guide groove 13 is consistent with the expansion and contraction direction of the first spring 31, or has an angle θ1 of 0-30°; and, by setting the guide groove 13, the disengagement structure 3 is higher than the narrow side edge h2 of the movement by 0.1-2mm. Through such a joint setting, when the solder point melts and is ready to be disengaged, a relatively wide space can be reserved for the disengagement sheet 2 to move, so as to avoid the tin slag from adhering to the disengagement sheet 2 and affecting the disengagement effect of the disengagement sheet 2.

[0073] As an optional method, an auxiliary disengagement mechanism 7 for the disengagement sheet can also be provided. The auxiliary disengagement mechanism 7 is provided on the narrow side edge of the gap component 1. The disengagement direction of the auxiliary disengagement mechanism 7 is not parallel to the direction of the disengagement mechanism. Figure 7 , and can be set to be perpendicular to the disengagement direction of the disengagement sheet 2. The auxiliary disengagement mechanism can be an elastic structure, such as a spring. Through an upward component force, the resultant force of the disengagement is made obliquely upward, reducing the friction effect of the disengagement surface of the gap component 1, so as to achieve a faster disengagement effect.

[0074] The arc shielding plate 33 is arranged at an angle to contact and match with the stop surface 22. In this way, through the above scheme, the stop surface 22 is higher than the arc shielding plate 33 of the detachment structure 3, which plays the role of stopping and sliding guide of the detachment structure 3. The detachment structure 3 is an insulating member, and an arc shielding plate 33 is arranged at the end to cut off the low-temperature welding point between the detachment piece 2 and the detachment welding point 4, thereby establishing electrical isolation between the two. Most of the detachment structures 3 of the original push-type tripping mechanism technology are not provided with an arc shielding plate 33. After the improvement, an arc shielding plate 33 is added under the same spatial layout. The arc shielding plate 33 isolates the electrical distance after the detachment piece 2 pops up, thereby achieving double isolation.

[0075] In an optional manner, the first spring 31 is wrapped in the first spring 31 positioning hole of the detachment structure 3, away from the live parts; the size of the elastic force can be set by itself, and is used to provide the driving force for the detachment structure 3. A micro switch spring limiting surface 35 is provided on the side of the detachment structure 3 close to the guide rail, which forms a limiting match with the micro switch 6 on the gap assembly 1. In this way, the first spring 31 is wrapped in the positioning hole of the detachment structure 3, and away from the live parts. When the detachment mechanism is actuated, the arc generated by the separation of the detachment sheet 2 and the detachment welding point 4 will fly around. Due to the size of the space and the specific position of the driving force, the first spring 31 of the prior art is generally set not far from the tripping point, and it is easy for the arc to fly to the first spring 31, causing the first spring 31 to be disconnected by electric shock and lose its elastic force.

[0076] In an optional manner, the spring positioning hole 34 includes a first opening and a second opening, the first opening is used to set the first spring 31, and the second opening is set with the second spring 32; one end of the first spring 31 is fixed to the gap component 1, and one end of the second spring 32 is fixed with the insulating sleeve 14. The second spring 32 can be provided with multiple, and the setting of the insulating sleeve 14 can assist in separation. After the first spring 31 is deformed, the second spring 32 pushes out the built-in insulating sleeve 14 and covers the spring to prevent the metal part of the spring from connecting to form a new current path.

[0077] The gap assembly 1 of this embodiment is closed, and only the necessary electrode lead-out holes are left as the bearings of various components. The gap assembly 1 is closed. A guide rail can be set on the top surface of the gap assembly 1. The cross section of the guide rail is two mirrored 7-shaped shapes, which form a sliding mechanism with the sliding surface of the detachment structure 3; a plurality of buckles 11 are set on the left side of the gap assembly 1 to respectively fix the limit detachment sheet 2 and the multi-layer gap movement; a plurality of positioning columns 12 are set on the right side of the gap assembly 1 to respectively fix the limit first spring 31 and the micro switch assembly 62. The micro switch 6 of the remote signal switch is embedded and fixed in the housing to ensure the stability of the structure and function.

[0078] In addition, the gap component 1 is provided with at least one buckle 11, which is used to snap into the detachment plate slot 21 and / or snap into the external device. The snapping method can be to open a slide groove on the detachment plate 2 for snapping, so that the solution described in this embodiment can not only form a detachment effect itself, but also become one of other protector components to adapt to more application scenarios. Optionally, when assembling multiple parts, a positioning column 12 can be added for fixed matching. And, please refer to Figure 5A connecting strip 8 may also be provided on the side of the gap assembly 1, which is L-shaped, and a screw hole is provided on the A surface 83 for locking the gap movement. A positioning column 12 is provided on the B surface 84 for converging and positioning the multi-way combination module; a slot 2 is provided for fixing and limiting the gap movement; and a slope 81 is provided for assembly guidance.

[0079] In an optional manner, the gap component 1 is a six-sided cube, with only the bottom surface open for movement assembly, and the gap component 1 wraps the movement inside. The material of the gap component 1 has high temperature resistance, with a thermal deformation temperature of 270 to 310°C, and the tripping point is low-temperature solder with a temperature range of 170 to 230°C. The movement releases high temperature under abnormal conditions, triggering the tripping mechanism to take action. During the process, the gap component 1 plays a role in buying time for the tripping action of the tripping mechanism, delaying and blocking the high temperature from being transferred to the outer shell. The wall thickness of the gap component 1 + the wall thickness of the outer shell achieves double insulation and heat insulation. The microswitch 6 includes a microswitch component 62 and a microswitch button 63, which are placed in the air avoidance interval set on the right side of the gap component 1. The air avoidance interval is a small part of the space borrowed from the movement. The micro switch button 63 faces the top surface of the gap assembly 1 and contacts the limit surface of the micro switch 6 of the disengagement structure 3 arranged on the top surface of the gap assembly 1. The micro switch button 63 is initially in a pressed state. When the disengagement piece 2 is separated from the tripping point, the disengagement structure 3 is pushed by the first spring 31 to release the micro switch button 63.

[0080] Please refer again Fig.13 When the guide rail groove 13 is arranged parallel to the gap component 1, the improved method of this embodiment is that the moving direction of the disengagement structure 3 and the bounce direction of the micro switch 6 spring are 90°. The original disengagement structure 3 is prone to move slightly under vibration, causing the micro switch 6 spring to bounce slightly, and there is a risk of erroneously releasing the remote signal; while in the improved method, the direction in which the disengagement structure 3 is slightly displaced during vibration is not the bounce direction of the micro switch 6 spring, and the remaining pressing amount after the displacement is sufficient to continue pressing the micro switch 6 spring.

[0081] Example 2

[0082] Due to various reasons, there are often overvoltages in the power system. These overvoltages include lightning-induced overvoltages, operating overvoltages, and overvoltages caused by other power grid fluctuations. These overvoltages can cause damage to electrical equipment. When long-term, high-frequency abnormal overvoltages occur, the surge protector is frequently activated, causing short circuits and fires. At this time, the surge protector should include a tripping structure. The tripping structure responds to events such as spike currents or overvoltages to produce a tripping action, thereby disconnecting the connection between the two conductive structures. At present, most of the products with tripping in the industry are MOV and multi-layer gap-type surge protectors installed on boards. There are fewer products with tripping in the main circuit and large-current rail-mounted products. Applications in special occasions require large-current rail-mounted products with tripping. Therefore, it is necessary to consider improvements to the existing surge protectors in terms of structural design. Based on this, this embodiment adopts a gap module combination as in the above-mentioned embodiment 1 to form a combined gap-type surge protector to solve the above-mentioned problems. This embodiment is implemented as follows:

[0083] See also Figure 14-Figure 22 , this embodiment provides a combined gap type surge protector, including a first gap module 531, a second gap module 532 and a housing. The first gap module 531 and the second gap module 532 are arranged side by side, and are respectively clamped in the housing; the first gap module 531 is provided with a bus bar 9, and the bus bar 9 is used to be fixed with the second gap module 532; wherein the second gap module 532 is provided with at least one; the housing includes a base 52 and an upper cover 51 matched with the base 52; the base 52 is used to form a accommodating bearing platform for accommodating the first gap module 531 and the second gap module 532, and the upper cover 51 is used to:

[0084] The combined movement is included; there are multiple windows 511 on the panel of the upper cover 51, through which the indicator window 511 of the slide plate is observed to see whether it moves and changes color; on the step surface under the panel, multiple countersunk holes are opened, some of which are used as wire pressing screw holes, and some are used as screw holes for locking with the base 52. Among them, the first gap module 531 and the second gap module 532 described in this embodiment. In a real-time scenario, it can be an N-pole module and an L-pole module. In the scenario described below in this embodiment, the first gap module 531 is a gap module N1, the second gap module 532 is a gap module L, and the third gap module 533 is a gap module N2.

[0085] See also Fig.14 and Fig.15 , Fig.14 This is a schematic diagram of the assembly of the combined movement of this embodiment. Fig.15 The schematic diagram of the optional arrangement of the combined core of this embodiment is shown in FIG. A in the figure can be any first gap module 531N1 or third gap module 533N2, and B is a second gap module 532L.

[0086] The gap module L of this embodiment has a first connection end and a second connection end, the first connection end is used to connect to the power system, and the second connection end is welded to the bus 9; the gap module N1 has a first connection end and a second connection end, the first connection end is used to connect to the power system, and the bus 9 is welded to the second connection end of the gap module L, and the second connection end is used for grounding; the gap module N2 has a first connection end and a second connection end, the first connection end is used to connect to the power system, and the bus 9 is welded to the second connection end of the gap module L, and the second connection end is used for grounding. The power system has multiple protection mode requirements, and the gap module is a single-channel design, which is conducive to deriving multiple combinations according to different protection requirements: 3+1, 1+1, 2+0, 3+0, 4+0. Figure 16-18 These are three combination examples provided for this embodiment, and this embodiment does not limit the specific combination methods.

[0087] As an optional method, the busbar 9 is used to be clamped with the first gap module 531 and each second gap module 532. It is also provided with a slot for fixing and limiting the gap movement to form a clamping connection with the first gap module 531 and each second gap module 532.

[0088] In this embodiment, the upper cover 51 of the shell is provided with a guide rail for cooperating with the detachable structure 3. The interior of the base 52 is divided into a plurality of units of different sizes, which serve as accommodating chambers for the multi-way combination module, the screw clamp assembly, the micro switch assembly 62, and the remote signal terminal 61. As an optional method, the base 52 also includes a micro switch assembly 62 and a remote signal terminal 61. The upper cover 51 is provided with a plurality of windows 511, and the opening positions of the windows 511 match the positions of the detachable structure 3; and the detachable structure 3 is provided with a display module, and optionally, a color mark is selected for display, so as to realize an overvoltage prompt or a status completion prompt.

[0089] See also Fig.21 In an optional manner, the busbar 9 is provided with a plurality of slots, including large holes 93 for passing tin and small positioning holes 91 arranged in a staggered manner, which is conducive to accurate assembly. Also, when assembling the busbar 9, if it is used to fix the N-pole module, a busbar tripping point 92 can also be provided for tripping. In addition, if Fig. 22 , any gap module can be an N-PE large flow module.

[0090] See also Figure 23-Figure 30 , which is a schematic diagram of the circuit structure of the solution described in this embodiment, and Figures (a) to (h) are diagrammatic illustrations of the aforementioned circuit structure schematic diagram, wherein:

[0091] Figure (a) represents the status indication, Figure (b) represents the remote signal, Figure (c) represents the disengagement mechanism, and Figure (d) represents the discharge gap.

[0092] Figure (e) represents a gas discharge tube, Figure (f) represents a varistor, Figure (g) represents a fuse, and Figure (h) represents a trigger device.

[0093] like Fig.24 The multi-layer gap module described in the above-mentioned embodiment 1 is shown in the figure. The gap component 1 includes n discharge gaps and n-1 trigger circuits, wherein n≥2, n is an integer, F1~Fn in the figure represent discharge gaps, N1~Nn-1 represent trigger circuits, and n discharge gaps are connected in series between the first terminal and the second terminal in sequence. The first terminal and the second terminal are led out as pins for the operation of the gap component 1. The common end of the discharge gaps is between adjacent discharge gaps, and there are a total of n-1 common ends between adjacent discharge gaps. One end of each of the n-1 trigger circuits is connected to the common end between the n-1 adjacent discharge gaps in sequence, and then the other end of each trigger circuit is connected to the second terminal, thereby forming a multi-layer gap structure as a whole.

[0094] like Fig.25 , for example: when there are only two gaps. The gap assembly 1 includes two discharge gaps and a trigger circuit, wherein n≥2, and n is an integer.

[0095] like Fig.26 , multi-layer gap module, as shown in the figure, the gap component 1 includes n discharge gaps and n-1 trigger circuits, where n≥2, n is an integer, F1~Fn in the figure represent discharge gaps, N1~Nn-1 represent trigger circuits, n discharge gaps are connected in series between the first terminal and the second terminal in sequence, the first terminal and the second terminal are led out as pins for the work of the gap component 1, and the common end of the discharge gap is between adjacent discharge gaps, so there are a total of n-1 common ends between adjacent discharge gaps, and one end of each trigger circuit of the n-1 trigger circuits is connected to the common end between the n-1 adjacent discharge gaps in sequence, and then the other end of each trigger circuit is connected to the second terminal, so as to form a multi-layer gap structure as a whole. The gap component in the multi-layer gap module is also connected in parallel with a fuse, a varistor, and a gas discharge tube.

[0096] like Fig. 27, a multi-layer gap module, as shown in the figure, includes an electrode terminal 1 and an electrode terminal 2; n gap units are sequentially connected in series between the electrode terminal 1 and the electrode terminal 2, and there is a common terminal between adjacent gap units; the first ends of k trigger circuits 1 are respectively connected to a common terminal, and the second ends of k trigger circuits 1 are all connected to the electrode terminal 2; the first ends of m trigger circuits 2 are respectively connected to a common terminal, and the second ends of m trigger circuits 2 are all connected to the electrode terminal 1; a single common terminal is only connected to one of the first end of trigger circuit 1 and the first end of trigger circuit 2. The gap components in the multi-layer gap module are also connected in parallel with fuses, varistors, and gas discharge tubes.

[0097] like Fig.28 , the multi-layer gap module can also be that the gap component 1 includes 1 discharge gap. Figure 29-30 The schematic structure of the circuit diagram of the combined product of this embodiment.

[0098] This embodiment provides a structure of a multi-layer gap-type surge protector with a large through-current and a tripping mechanism, which increases the safety of product application. The push-type tripping mechanism is designed to effectively isolate the first spring from the live parts, solving the problem of the first spring being weakened or losing its elastic force due to arc breakdown. The design of the single-channel gap module is conducive to combining into a multi-channel module according to needs, and the combination methods are diverse: 1+1, 2+0, 3+0, 3+1, 4+0, and the specific style is not limited in this embodiment.

[0099] In the above scheme, the main circuit of this embodiment has a tripping function to increase the safety of product application; the multi-layer gap type is used to provide large through-current requirements. The single-channel gap module is designed to derive multiple combination modes, and a set of upper covers and shells wrapping the multi-channel combination module is to achieve an integrated architecture to solve the problem of pin ablation under large through-current. A set of remote signal ports facilitates engineering wiring, and the indicator window is used to check the product's working / failure status.

[0100] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention. The protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A gap module, characterized in that: include: A gap component (1), wherein a detachment mechanism is provided on the gap component (1), and the detachment mechanism is movably connected to the gap component (1) via a detachment welding point (4); The disengagement mechanism comprises a disengagement sheet (2) and a disengagement structure (3); one end of the disengagement sheet (2) is snapped onto the buckle (11) of the gap assembly (1), and the other end is welded to the disengagement welding point (4); one end of the disengagement structure (3) is in contact with one end of the disengagement sheet (2) close to the disengagement welding point (4); wherein: The disengagement mechanism is arranged on the narrow side edge of the gap component (1); the gap component (1) is also provided with a micro switch (6) and a first spring (31) on a side close to the disengagement structure (3); when the disengagement sheet (2) is separated from the disengagement welding point (4), the disengagement structure (3) moves along the expansion and contraction direction of the first spring (31), presses the disengagement sheet (2) to accelerate the separation of the disengagement sheet (2) from the disengagement welding point (4), and releases the micro switch (6).

2. A gap module according to claim 1, characterized in that: The detachment sheet (2) is bent and fixed to a side of the gap component (1) where no detachment welding point (4) is provided by snapping; one end of the detachment sheet (2) welded to the detachment welding point (4) is also provided with a stop surface (22), and the stop surface (22) is tilted relative to the detachment sheet (2).

3. A gap module according to claim 2, characterized in that: The tilting angle of the stop surface (22) is 20-80°, and the length of the tilting portion is 1.5-6 mm.

4. A gap module according to claim 2, characterized in that: The disengagement structure (3) further comprises an arc shielding plate (33); the disengagement structure (3) is movably fixed on the guide rail groove (13) of the gap assembly (1); the arc shielding plate (33) is arranged in an inclined manner and is used for contacting and matching with the stop surface (22).

5. A gap module according to claim 4, characterized in that: The disengagement structure (3) is provided with a spring positioning hole (34), and the first spring (31) is installed in the spring positioning hole (34).

6. A gap module according to claim 5, characterized in that: The spring positioning hole (34) comprises a first opening and a second opening, wherein the first opening is used to arrange the first spring (31), and the second opening is arranged with a second spring (32); one end of the first spring (31) is fixed to the gap assembly (1), and one end of the second spring (32) is fixed with an insulating sleeve (14).

7. A gap module according to claim 5, characterized in that: The ejection angle of the disengagement structure (3) is 0-30°.

8. A gap module according to claim 1, characterized in that: It also includes an auxiliary detachment mechanism (7) applied to the detachment sheet (2), wherein the auxiliary detachment mechanism (7) is arranged on the narrow side edge of the gap component (1), and the detachment direction of the auxiliary detachment mechanism (7) is not parallel to the direction of the detachment mechanism; the auxiliary detachment mechanism (7) can be an elastic structure.

9. A gap module according to claim 4, characterized in that: There is a gap between the separation structure (3) and the gap component (1), and the gap distance is 0.1-2 mm.

10. A gap module according to claim 1, characterized in that: The movement direction of the spring of the micro switch (6) is not parallel to the disengagement direction of the disengagement structure (3).

11. A gap module according to claim 1, characterized in that: The gap component (1) is in a closed configuration.

12. A gap module according to claim 1, characterized in that: The micro switch (6) is embedded in the gap component (1).

13. A gap module according to claim 4, characterized in that: The spring is arranged on a side of the detachment structure (3) close to the detachment sheet (2) or on a side away from the detachment sheet (2).

14. A gap module according to claim 4, characterized in that: The movement direction of the spring of the micro switch (6) is perpendicular to the disengagement direction of the disengagement structure (3).

15. A combined gap type surge protector, composed of the gap modules as described in any one of claims 1 to 12, characterized in that: include: A first gap module (531), a second gap module (532) and a housing; The first gap module (531) and the second gap module (532) are arranged side by side and are respectively clamped in the housing; the first gap module (531) is provided with a busbar (9), and the busbar (9) is used to be fixed with the second gap module (532); wherein the second gap module (532) is provided with at least one; The shell comprises a base (52) and an upper cover (51) matching the base (52); the base (52) is used to form a accommodating bearing platform for accommodating the first gap module (531) and the second gap module (532), and the upper cover (51) is used to cover the edge of the base (52) to form a fixation.

16. A combined gap type surge protector according to claim 15, characterized in that: The busbar (9) is provided with a plurality of slots, wherein the slots include large tin-passing holes (93) and small positioning holes (91) that are arranged in a staggered manner.

17. A combined gap-type surge protector according to claim 15, characterized in that: The base (52) also includes a micro switch assembly (62) and a remote signal terminal (61).

18. A combined gap-type surge protector according to claim 15, characterized in that: The upper cover (51) is provided with a plurality of windows (511), the opening positions of the windows (511) matching the positions of any of the gap modules, and being used to observe the sliding of the disengagement mechanism of the gap module.

19. A combined gap-type surge protector according to claim 15, characterized in that: Any of the gap modules may be an N-PE large flow module.

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