Surge protection device and cabinet

Abstract

The utility model relates to a surge protection device and a cabinet, and belongs to the technical field of surge protection devices. The cabinet comprises a cabinet body and a surge protection device, wherein the surge protection device comprises a base and a plugging module; the base is provided with n plugging areas, one side of each plugging area is provided with an anti-drop hole, two plugging ports are correspondingly arranged in part or all of the plugging areas, and each plugging port comprises two plugging sheets capable of elastically deforming; the plugging module is inserted into the plugging area and is provided with an anti-drop sheet and two electrodes, the anti-drop sheet can elastically deform and is provided with an anti-drop bulge buckled with the anti-drop hole, and the electrodes are inserted into the plugging port and are clamped by the two plugging sheets. According to the surge protection device and the cabinet provided by the utility model, the plugging module is connected with the housing in a plugging manner, so that the failed module head can be directly plugged and replaced from the panel of the cabinet without opening the upper cover of the cabinet body, the convenience of maintenance can be effectively improved, the problem of high replacement cost of an integrated SPD is solved, and the surge protection device is particularly suitable for a 1U cabinet.

Description

Technical Field

[0001] The utility model belongs to the technical field of surge protectors, and in particular relates to a surge protector and a cabinet. Background Art

[0002] A surge protector is an electrical appliance used to limit transient overvoltages and discharge surge currents. It can provide safety protection for various electronic / network equipment, instruments, and communication lines. It can effectively protect equipment from damage caused by surge pulses and instantaneous overvoltages caused by the outside world (lightning strikes, electromagnetic radiation interference, etc.) or the system itself (system closing and opening effects, start-up and stop of inductive and capacitive loads, etc.). In order to improve the convenience of maintenance, surge protectors often adopt a plug-in structure, which includes a surge protector base and a replaceable surge protector module plugged in the base. The installation space of a 1U cabinet is limited, and the structural size of the surge protector is greatly restricted and the requirements are high. The surge protector is entirely embedded in the panel of the cabinet. In the prior art, when the surge protector module is plugged in and out, the cabinet cover needs to be opened, which is very inconvenient for maintenance. Generally, an integrated SPD is used, which is complex to maintain and has high replacement costs. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a surge protector and a cabinet, in which a plug-in connection is adopted between the plug-in module and the base, and a failed module head can be quickly and directly replaced by plugging in from the 1U cabinet panel without opening the cabinet cover, which can effectively improve the convenience of maintenance and solve the high cost problem of replacing the entire integrated SPD when replacing it.

[0004] The technical solution of the utility model is as follows:

[0005] The utility model provides a surge protector for a 1U cabinet, comprising: a base, provided with n plug-in areas, one side of the plug-in area is provided with an anti-dropping hole, part or all of the plug-in areas are correspondingly provided with two plug-in interfaces, the plug-in interfaces include two elastically deformable plug-in sheets; a plug-in module, inserted into the plug-in area and having an anti-dropping sheet and two electrodes, the anti-dropping sheet can be elastically deformed and is provided with an anti-dropping protrusion that is snapped with the anti-dropping hole, the electrode is inserted into the plug-in interface and clamped by the two plug-in sheets.

[0006] As an optional solution, the base also includes n+1 conductive parts; the plug-in ports corresponding to the plug-in area are respectively a first port and a second port, n of the first ports are respectively connected to n different conductive parts, and all of the second ports are connected to the same conductive part.

[0007] As an optional solution, the base further includes a conductive member, and the plug interface further includes at least two plugging ears plugged with the conductive member, and the plugging ears are arranged opposite to the plugging piece.

[0008] As an optional solution, the two plug-in pieces are integrally formed, the distance between the two plug-in pieces first decreases and then increases, and the ends of the plug-in pieces are divided into at least two parts.

[0009] As an optional solution, the plug-in module is provided with a pressing notch, the anti-dropout sheet is provided in the pressing notch and can extend into the plug-in area, and the side wall of the plug-in area can squeeze the anti-dropout protrusion and deform the anti-dropout sheet.

[0010] As an optional solution, the front end of the anti-slip protrusion is a sloped surface and the rear end is a vertical surface.

[0011] As an optional solution, a first transverse protrusion and a second transverse protrusion are provided on two opposite sides of the plug-in module, and the first transverse protrusion is provided on the anti-dropping sheet.

[0012] As an optional solution, a mounting through hole is provided on the base.

[0013] As an optional solution, the base is provided with a connection terminal, and the connection terminal is a spring-type connection terminal.

[0014] The utility model also provides a cabinet, comprising a cabinet body and the above-mentioned surge protector, wherein the base is fixed to the cabinet body and the opening of the plugging and unplugging area is exposed.

[0015] The beneficial effects of the utility model are:

[0016] The cabinet provided by the utility model has a surge protector fixed to the cabinet body, a plug-in module can be inserted into the plug-in area of ​​the base, the electrode can be clamped by the plug-in interface and electrically conductive, and the anti-dropout sheet can be deformed, so that the anti-dropout protrusion can be engaged with the anti-dropout hole, so that the plug-in module and the base are fixed. The plug-in module and the base are connected by a plug-in type connection, and can be directly plugged in and replaced from the cabinet panel without opening the cabinet cover, which can effectively improve the convenience of maintenance and improve the problem of high replacement cost of the integrated SPD, and is particularly suitable for 1U cabinets. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. As shown in the drawings, the above and other purposes, features and advantages of the utility model will be clearer. The same reference numerals in all the drawings indicate the same parts. The drawings are not deliberately scaled according to the actual size, and the focus is on showing the main purpose of the utility model.

[0018] Figure 1 A schematic diagram of the structure of a surge protector provided in Embodiment 1 of the utility model;

[0019] Figure 2 A schematic diagram of the structure of the base of the surge protector provided in the first embodiment of the utility model Figure 1 ;

[0020] Figure 3 A schematic diagram of the structure of the base of the surge protector provided in the first embodiment of the utility model Figure 2 ;

[0021] Figure 4 A schematic diagram of the matching relationship between the base (without the cover) and the plug-in module of the surge protector provided in the first embodiment of the utility model;

[0022] Figure 5 for Figure 4 A schematic diagram of the structure of the wiring assembly in FIG.

[0023] Figure 6 for Figure 5 Schematic diagram of the local structure (without the pin header);

[0024] Figure 7 for Figure 5 The structure of the plug-in interface Figure 1 ;

[0025] Figure 8 for Figure 5 The structure of the plug-in interface Figure 2 ;

[0026] Fig. 9 A schematic diagram of the structure of a plug-in module of a surge protector provided in Embodiment 1 of the utility model;

[0027] Fig.10 for Fig. 9 The internal structure of Figure 1 ;

[0028] Fig.11 for Fig. 9 The internal structure of Figure 2 ;

[0029] Fig.12 This is a schematic diagram of the structure of the cabinet provided in the second embodiment of the present utility model.

[0030] Icons: 10-cabinet; 11-cabinet body; 12-surge protector; 120-base; 121-cover; 122-plug-in area; 123-anti-drop hole; 124-mounting through hole; 125-foolproof socket; 130-wiring assembly; 131-wiring terminal; 132-pin header; 133-conductive part; 134-plug-in interface; 135-wiring interface; 136-plug-in sheet; 137-plug-in ear; 140-plug-in module; 141-anti-drop sheet; 142-electrode; 143-anti-drop protrusion; 144-first lateral protrusion; 145-second lateral protrusion; 146-foolproof plug; 147-pin header; 150-micro switch; 151-varistor; 152-pin electrode; 153-arc baffle. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] 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.

[0033] 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.

[0034] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0035] Embodiment 1

[0036] Please refer to Figure 1 As shown, the first embodiment of the utility model provides a surge protector 12, which can be installed in a server cabinet, especially a 1U cabinet. The server cabinet can be regarded as the shell of the server, and can also be regarded as a server from an overall perspective. The server cabinet is in the shape of a rectangular parallelepiped, and the dimensions are reflected in length, width and height. U represents the height of the server cabinet, which is an abbreviation of unit, and 1U is equal to 4.445 cm; the height (thickness) of the server cabinet is based on 4.445 cm as the basic unit.

[0037] The 1U cabinet is equipped with electronic equipment, network equipment, communication lines, etc. The surge protector 12 is used to limit transient overvoltage and discharge surge current, and can prevent surge pulses and instantaneous overvoltage caused by the outside world or the system from damaging the equipment and lines in the cabinet.

[0038] The surge protector 12 is mainly composed of a base 120 and a plug-in module 140 , and each component is discussed in detail below.

[0039] Please combine Figure 2-Figure 4 As shown, the base 120 is mainly composed of a cover shell 121 and a wiring assembly 130 , and the wiring assembly 130 is located in the cover shell 121 .

[0040] The base 120 is provided with a mounting through hole 124, which can pass through the cover 121 and is used to cooperate with the cabinet body of the cabinet. The mounting through hole 124 can be penetrated by a fixing bolt, which is threadedly connected to the cabinet body of the cabinet to fix the base 120 to the cabinet body.

[0041] The shape of the housing 121 is not limited, for example, the cross section of the housing 121 may be rectangular. The housing 121 is provided with n plug-in areas 122, the number of which may be set as required, n being a positive integer greater than 0, n may be 1, 2, 3, 4, etc., for example, three, four, etc. In this embodiment, four plug-in areas 122 are provided on the housing 121, the four plug-in areas 122 are arranged side by side, and each plug-in area 122 has an opening.

[0042] Each plug-in area 122 is provided with an anti-drop hole 123, and the anti-drop hole 123 can be set on one side of the plug-in area 122. The shape and style of the anti-drop hole 123 are not limited. For example, the anti-drop hole 123 is a blind hole, a through hole, a stepped hole, etc. In the present embodiment, the anti-drop hole 123 is a through hole and has a rectangular structure.

[0043] The wiring assembly 130 is located in the housing 121. Figure 4 As shown, the wiring assembly 130 is used to cooperate with the plug-in module 140 and be electrically connected.

[0044] Please combine Figure 5 , Figure 6 As shown, the wiring assembly 130 is mainly composed of a wiring terminal 131, a pin header 132, a conductive member 133 and an insertion port 134. The wiring terminal 131 and the insertion port 134 are electrically connected through the conductive member 133. As mentioned above, there are n plug-in areas 122, and there are at least n+1 wiring terminals 131. Each plug-in area 122 corresponds to a wiring terminal 131 to achieve electrical connection, and the extra wiring terminal 131 is used as a loop to achieve electrical conduction.

[0045] One end of the connection terminal 131 is provided with a connection port 135 , and the connection port 135 is mainly used for electrical conduction with the wires in the cabinet.

[0046] The wiring method in the wiring port 135 is not limited. For example, the wiring port 135 generally adopts a screw clamping wiring method. For a 1U cabinet, if this method is adopted, wiring and installation are not convenient. In this embodiment, it can be improved by the following scheme: the wiring assembly 130 adopts a spring-type wiring terminal 131. The structure of the spring-type wiring terminal 131 can refer to the existing technology. When wiring, the wire is directly inserted from the wiring port 135 to achieve electrical connection, which can realize the rapid installation and wiring of the 1U cabinet, and improve the convenience and operability of wiring in the 1U cabinet.

[0047] Each plug-in area 122 is provided with two plug-in ports 134 for connecting to two electrodes 142 of the plug-in module 140 (see Fig. 9 ) to achieve electrical conduction. In this embodiment, the plug interface 134 is located inside the housing 121. As required, the plug interface 134 can also be set outside the housing 121, as long as it can cooperate with the plug module 140 and achieve electrical conduction. The two plug interfaces 134 in each plug area 122 are a group. Figure 7 , Figure 8 As shown, the plug interface 134 includes two plug-in plates 136. The two plug-in plates 136 can be integrally formed or detachably connected. The plug-in plates 136 are made of a conductive metal material. The plug-in plates 136 can be elastically deformed, that is, the plug-in plates 136 can be deformed under the action of an external force. When the external force disappears, the plug-in plates 136 return to their original positions. The two plug-in plates 136 are arranged opposite to each other, and a conductive area is formed between the two plug-in plates 136.

[0048] A portion of the pluggable module 140 can be inserted into the pluggable area 122 and electrically connected to the wiring assembly 130, and another portion is exposed outside the cabinet body of the cabinet for easy plugging and replacement. The number of pluggable modules 140 can be set as needed, and the number of pluggable modules 140 is generally less than or equal to the number of pluggable areas 122.

[0049] Please combine Fig. 9 As shown, each plug-in module 140 has an anti-dropping piece 141 and two electrodes 142. The anti-dropping piece 141 is used to fix the plug-in module 140 and the cover 121 to prevent the two from abnormally detaching. The electrode 142 is used to be inserted into the plug-in port 134 and electrically conductive.

[0050] Among them, the anti-slip sheet 141 can be elastically deformed, and an anti-slip protrusion 143 is provided on one side of the anti-slip sheet 141. The anti-slip protrusion 143 matches the anti-slip hole 123, and the anti-slip protrusion 143 can be buckled in the anti-slip hole 123. When the anti-slip sheet 141 is squeezed and deformed, the anti-slip protrusion 143 can be detached from the anti-slip hole 123.

[0051] The material of the anti-drop sheet 141 is not limited, and generally speaking, the anti-drop sheet 141 can be made of insulating materials such as plastics. The setting mode of the anti-drop sheet 141 is not limited, for example, in the present embodiment, the following scheme can be adopted but not limited to: the plug module 140 is provided with a pressing notch, and the pressing notch can be a shape such as a rectangle, and the anti-drop sheet 141 is arranged in the pressing notch, and there can be a gap between the surrounding of the anti-drop sheet 141 and the pressing notch. One end of the anti-drop sheet 141 is a connecting end and the other end is a movable end, and the connecting end is connected with the plug module 140, and the anti-drop protrusion 143 is arranged on the outside of the movable end. When the anti-drop sheet 141 is pressed to the inner side of the plug module 140, the anti-drop sheet 141 can be bent so that the anti-drop protrusion 143 is separated from the anti-drop hole 123, and the movable end can be reset without external force, so that the anti-drop protrusion 143 is embedded in the anti-drop hole 123.

[0052] The anti-slip sheet 141 can extend into the plug-in area 122, and the anti-slip sheet 141 matches the side wall of the cover 121, that is, when the plug-in module 140 is inserted into the plug-in area 122, the side wall of the cover 121 can squeeze the anti-slip protrusion 143 to deform the anti-slip sheet 141. The style of the anti-slip protrusion 143 is not limited, such as a hemispherical shape, a rectangular block shape, etc. In this embodiment, the anti-slip protrusion 143 can adopt but is not limited to the following scheme: the front end of the anti-slip protrusion 143 is a slope and the rear end is a vertical surface. When the plug-in module 140 is inserted into the plug-in area 122, the slope of the anti-slip protrusion 143 first contacts the side wall of the plug-in area 122. Since the slope is inclined, the side wall of the plug-in area 122 can squeeze the anti-slip protrusion 143, so that the anti-slip sheet 141 is automatically deformed, and there is no need for the staff to press the anti-slip sheet 141. When the plug-in module 140 is inserted into place, the vertical surface of the anti-dropout protrusion 143 will hook the anti-dropout hole 123. When there is no external force, the anti-dropout protrusion 143 will not easily fall off the anti-dropout hole 123, and the plug-in module 140 is more firm and safe.

[0053] The electrode 142 is made of a conductive metal material, and the shape of the electrode 142 is not limited, such as a sheet, a block, etc. The electrode 142 can be inserted into the plug port 134, and the electrode 142 can push the two plug-in sheets 136 outward, and the electrode 142 is clamped and fixed by the two plug-in sheets 136, so that the electrode 142 and the plug-in sheets 136 are electrically conductive.

[0054] In order to make the electrode 142 plug-in smoother, in this embodiment, the following solution can be selected: the distance between the two plug-in pieces 136 is first reduced and then increased, and the end of the plug-in piece 136 is divided into at least two parts. This arrangement allows the electrode 142 to smoothly enter between the two plug-in pieces 136, and the structure of the plug-in piece 136 is more stable.

[0055] The plug-in port 134 is electrically connected to the connection terminal 131 via the conductive member 133 . The conductive member 133 may be in any shape. In the present embodiment, it is in the shape of a metal sheet, or it may be a wire.

[0056] The two plug ports 134 in each plug area 122 are respectively a first port and a second port, the first port is an L port and an N port and the second port is a PE port, or the first port is an L port and a PE port and the second port is an N port. For example, n plug areas 122 include n first ports and n second ports, wherein n first ports include n-1 L ports and 1 N port, and n second ports are n PE ports; or n first ports include n-1 L ports and 1 PE port, and n second ports are n N ports. Here, n is a positive integer greater than 1. When n=1, the wiring method can change.

[0057] Specifically, the two plug ports 134 in each plug-in area 122 can be an L port and an N port, or an L port and a PE port, or an N port and a PE port, to achieve an electrical path. Each L port and one PE port (or N port) in the n plug-in areas 122 are electrically connected to the corresponding wiring terminals 131 through n different conductive parts 133; all N ports (or PE ports) in the n plug-in areas 122 can be connected to other wiring terminals 131 through the same conductive part 133. For example, the wiring assembly 130 includes five wiring terminals 131, of which four wiring terminals 131 are electrically connected to three L ports and one PE port through four conductive parts 133, and the fifth wiring terminal 131 is electrically connected to four N ports through one conductive part 133. Such a setting can facilitate layout, simplify circuits, save space, and make the structure simpler and more reliable. Of course, in some embodiments, each L port, N port, and PE port may be electrically connected to a different connection terminal 131 , for example, eight connection terminals 131 are provided in four plug-in areas 122 .

[0058] The connection method of the plug interface 134 and the conductive member 133 is not limited, for example, the two are integrally formed or welded, etc. In this embodiment, the following schemes can be adopted but are not limited to: the plug interface 134 also includes two plug ears 137, and the conductive member 133 is provided with a through hole, and the plug ears 137 are inserted into the through hole, and the plug ears 137 and the conductive member 133 are fixed by welding, gluing, etc. to achieve electrical conduction. The plug ears 137 are arranged opposite to the plug sheet 136. The plug ears 137 and the plug sheet 136 can be integrally formed, or they can be fixed by welding, detachable connection, etc.

[0059] In addition, in order to facilitate the operation of the staff and prevent the hands and the plug module 140 from slipping, in this embodiment, the following technical solution can also be adopted: a first transverse protrusion 144 is provided on the lower half of the anti-slip sheet 141, and a second transverse protrusion 145 is provided on the other side of the plug module 140. After the plug module 140 is inserted into the plug area 122, the first transverse protrusion 144 and the second transverse protrusion 145 are exposed outside the plug area 122.

[0060] In addition, the plug module 140 and the base 120 may be provided with anti-foolproof components, one of the plug module 140 and the base 120 is provided with an anti-foolproof plug 146, and the other is provided with an anti-foolproof socket 125, the anti-foolproof plug 146 can be inserted into the anti-foolproof socket 125, and the cross-section of the anti-foolproof plug 146 and the anti-foolproof socket 125 can be T-shaped or other shapes to prevent the plug module 140 from being inserted in reverse. The plug module 140 is also provided with a pin header 147, which is used to plug and match with the pin header seat 132, mainly for communication.

[0061] Please combine Fig.10 , Fig.11 As shown, the internal structure of the plug-in module 140 can refer to the prior art, and mainly includes a micro switch 150, a varistor 151, a pin electrode 152 and an arc-blocking plate 153, etc., which will not be repeated here.

[0062] The method of using the surge protector 12 provided in this embodiment is as follows:

[0063] Insertion steps: The staff member grabs the plug-in module 140, aligns the plug-in module 140 with one of the plug-in areas 122, and gradually inserts the plug-in module 140; when the plug-in module 140 is inserted to a certain depth, the anti-dropout protrusion 143 abuts against the side wall of the plug-in area 122, and the side wall of the plug-in area 122 squeezes the anti-dropout protrusion 143, so that the anti-dropout sheet 141 is deformed; the plug-in module 140 is continuously inserted, and the electrode 142 is gradually inserted into the plug-in port 134, and the electrode 14 2 squeezes the two plug-in sheets 136 outward; when the plug-in module 140 is inserted into place, the anti-dropout protrusion 143 is opposite to the anti-dropout hole 123, and the anti-dropout protrusion 143 is no longer squeezed by the side wall of the plug-in area 122, and the anti-dropout sheet 141 is elastically deformed and reset, so that the anti-dropout protrusion 143 is buckled into the anti-dropout hole 123. At this time, the vertical surface of the anti-dropout protrusion 143 hooks the anti-dropout hole 123, and the electrode 142 is clamped and fixed by the two plug-in sheets 136 and the two are electrically conductive.

[0064] Unplugging steps: The staff grasps the plug-in module 140 and presses the anti-dropping sheet 141 with fingers to deform the anti-dropping sheet 141 and disengage the anti-dropping protrusion 143 from the anti-dropping hole 123; pulls the plug-in module 140 backwards, at which time the electrode 142 gradually disengages from the plug-in port 134 until the plug-in module 140 is completely unplugged; releases the anti-dropping sheet 141, and the anti-dropping sheet 141 undergoes elastic deformation and resets.

[0065] The above steps can be increased, decreased, modified, or the order can be adjusted as needed.

[0066] Embodiment 2

[0067] A second embodiment of the present invention provides a cabinet 10 , which may be a 1U cabinet 10 .

[0068] The cabinet 10 is mainly composed of a cabinet body 11 and a surge protector 12 . The surge protector 12 is disposed in the cabinet body 11 and a portion of the surge protector 12 is exposed.

[0069] The structure of the cabinet 11 is not limited and can refer to the prior art, which will not be described in detail here.

[0070] The surge protector 12 may refer to the structure in the first embodiment, and the unmentioned parts of the surge protector 12 may refer to the first embodiment or the prior art.

[0071] The base 120 is fixed to the cabinet 11, and the opening of the plugging area 122 is exposed, so that the plugging module 140 can be plugged in and out of the plugging area 122. After the plugging module 140 is inserted into the plugging area 122, the plugging module 140 can be located outside the cabinet 10.

[0072] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A surge protector for a 1U cabinet, characterized in that: include: The base is provided with n plug-in areas, one side of the plug-in area is provided with an anti-drop hole, and two plug-in interfaces are correspondingly provided in the plug-in area, and the plug-in interface includes two plug-in sheets that can be elastically deformed; The plug-in module is inserted into the plug-in area and has an anti-dropping piece and two electrodes. The anti-dropping piece can be elastically deformed and is provided with an anti-dropping protrusion that is engaged with the anti-dropping hole. The electrode is inserted into the plug-in interface and clamped by the two plug-in pieces.

2. The surge protector according to claim 1, characterized in that: The base also includes n+1 conductive members; the plug-in ports corresponding to the plug-in area are respectively a first port and a second port, n first ports are respectively connected to n different conductive members, and all the second ports are connected to the same conductive member.

3. The surge protector according to claim 1, characterized in that: The base further includes a conductive member, and the plug interface further includes at least two plug ears plugged with the conductive member, and the plug ears are arranged opposite to the plug sheet.

4. The surge protector according to claim 1, characterized in that: The two plug-in plates are integrally formed, the distance between the two plug-in plates decreases first and then increases, and the ends of the plug-in plates are divided into at least two parts.

5. The surge protector according to claim 1, characterized in that: The plug-in module is provided with a pressing notch, the anti-dropping sheet is arranged in the pressing notch and can extend into the plug-in area, and the side wall of the plug-in area can squeeze the anti-dropping protrusion and deform the anti-dropping sheet.

6. The surge protector according to claim 5, characterized in that: The front end of the anti-slip protrusion is a sloped surface and the rear end is a vertical surface.

7. The surge protector according to claim 1, characterized in that: The plug-in module is provided with a first transverse protrusion and a second transverse protrusion on two opposite sides thereof, wherein the first transverse protrusion is provided on the anti-dropping sheet.

8. The surge protector according to claim 1, characterized in that: The base is provided with a mounting through hole.

9. The surge protector according to claim 1, characterized in that: The base is provided with a spring-type connecting terminal.

10. A cabinet, characterized in that: It comprises a cabinet and the surge protector according to any one of claims 1 to 9, wherein the base is fixed to the cabinet and the opening of the plug-in area is exposed.

Images