Surge protection modules and surge protectors

Abstract

The present invention discloses a surge protection module and a surge protector, the surge protection module includes a base, the base has a length direction, the base is formed with at least two accommodating cavities for accommodating a voltage-limiting element in the length direction; the voltage-limiting element is accommodated in the accommodating cavity; a tripping mechanism; a first plug-in electrode and a second plug-in electrode, which are arranged on the base and are electrically connected to the tripping mechanism and the output end of the voltage-limiting element, respectively. By forming at least two accommodating cavities for accommodating the voltage-limiting element on the base, different numbers of voltage-limiting elements can be selected and installed in the accommodating cavities, and surge protection with different current carrying capacities can be realized by using the same tripping mechanism, the first plug-in electrode and the second plug-in electrode, without changing the appearance of the surge protection product, so that it has higher versatility.

Description

Technical Field

[0001] The present invention relates to the technical field of lightning protection equipment, and in particular to a surge protection module and a surge protector. Background Art

[0002] Surge protectors are commonly used in electrical circuits in homes, offices, and industrial places to prevent instantaneous overvoltage in the circuits from damaging electrical equipment. When a spike current or voltage suddenly occurs in an electrical circuit or communication line due to external interference, the surge protector can conduct and shunt the current in a very short time, thereby preventing the surge from damaging other equipment in the circuit.

[0003] In response to the needs of different environmental applications of the protected system, after a lightning risk assessment by professionals, surge protectors of different specifications need to be installed to meet the needs of lightning protection and surge protection, especially in areas with high thunderstorm climates, where the required lightning current discharge capacity is significantly higher than that of conventional products. Therefore, for equipment manufacturers of the same specifications deployed throughout the country, installing surge protectors with different current carrying capacities is an inevitable measure to meet the standards and actual lightning protection needs. To facilitate equipment manufacturing and appearance, how to improve the versatility of lightning protection products is of great significance to equipment manufacturers.

[0004] Especially for the application scenarios of power supply in the communications industry, since the height provided for installing surge protectors in the equipment is usually no higher than 40mm, which is a general requirement, how to install surge protectors that are compatible with different current capabilities at this limited height has become an urgent problem to be solved in the industry. Summary of the invention

[0005] The embodiments of the present invention provide a surge protection module and a surge protector, which are used to solve the problem that the existing surge protector is not compatible with different current carrying capacities and has poor versatility.

[0006] To this end, according to a first aspect, an embodiment provides a surge protection module, including:

[0007] The base has a length direction, and the base is formed with at least two accommodating cavities for accommodating the pressure-limiting element in the length direction;

[0008] A pressure limiting element is accommodated in the accommodating cavity;

[0009] A tripping mechanism is mounted on the base, and the tripping mechanism has a first state in which it is electrically connected to the input end of the voltage limiting element and a second state in which it is disconnected from the input end of the voltage limiting element;

[0010] A first plug-in electrode and a second plug-in electrode are arranged on the base, the first plug-in electrode is electrically connected to the tripping mechanism, and the second plug-in electrode is electrically connected to the output end of the voltage limiting element.

[0011] In some embodiments of the surge protection module, the base is in a rectangular shape, the two accommodating cavities are arranged at intervals along the length direction of the base, an installation cavity is formed on the base between the two accommodating cavities, the tripping mechanism is at least partially installed in the installation cavity, and the first plug-in electrode and the second plug-in electrode are respectively arranged on the two end surfaces of the base in the height direction.

[0012] In some embodiments of the surge protection module, the trip mechanism includes a conductive portion, and when the trip mechanism is in the first state, the conductive portion is electrically connected to the input end, and when the trip mechanism is in the second state, the conductive portion is disconnected from the input end.

[0013] In some embodiments of the surge protection module, connecting holes connected to the installation cavity are provided on both end surfaces in the width direction of the base, the conductive part includes a connecting piece and two elastic conductive sheets symmetrically connected to the connecting piece, the connecting piece is located outside the installation cavity and is arranged in a gap with the outer surface of the base, one end of the two elastic conductive sheets away from the connecting piece extends into the installation cavity through the connecting hole and is fixed to the input end of the voltage limiting element through a thermally-fused conductive material, and the first electrode is electrically connected to the connecting piece.

[0014] In some embodiments of the surge protection module, the tripping mechanism further includes a driving member and an elastic member, the driving member and the elastic member are arranged in the installation cavity and located between the two elastic conductive sheets, the driving member abuts against the connection between the two elastic conductive sheets and the input end under the action of the elastic member, when the thermal fuse conductive material has not reached the melting temperature, the elastic member is in an energy storage state, and the tripping mechanism is in the first state at this time; when the thermal fuse conductive material reaches the melting temperature and melts, the elastic member drives the driving member to move to disconnect the elastic conductive sheet from the input end, and the tripping mechanism is in the second state at this time.

[0015] In some embodiments of the surge protection module, the surge protection module also includes a status indication component, the status indication component includes a flexible indicator sheet, the flexible indicator sheet is attached to the outer surface of the base and can move along the outer surface, and has a first position indicating a normal working state and a second position indicating a fault state on its moving path, and when the trip mechanism switches from the first state to the second state, the flexible indicator sheet moves from the first position to the second position.

[0016] In some embodiments of the surge protection module, the outer surface of the base has an optical display surface and a remote signal linkage hole. When the flexible indicator sheet is in the first position, the optical display surface and the remote signal linkage hole are both blocked by the flexible indicator sheet. When the flexible indicator sheet is in the second position, the remote signal linkage hole and the optical display surface are exposed.

[0017] In some embodiments of the surge protection module, the status indication assembly also includes an elastic component, the optical display surface and the remote signal linkage hole are respectively arranged on the two end surfaces in the length direction of the base, the middle part of the flexible indicator sheet is slidably penetrated between the connecting member and the outer surface of the base, the middle part of the flexible indicator sheet is provided with a positioning hole, the base is provided with a through hole corresponding to the positioning hole and connected to the mounting cavity, the driving member is provided with a positioning protrusion that can extend out of the through hole and insert into the positioning hole, the elastic component connects the end of the flexible indicator sheet corresponding to the remote signal linkage hole to the base, when the tripping mechanism is in the first state, the flexible indicator sheet is in the first position, at this time, the positioning protrusion is inserted into the positioning hole, and the elastic component is in the energy storage state; when the tripping mechanism is in the second state, the positioning protrusion is removed from the positioning hole, and the flexible indicator sheet moves from the first position to the second position under the action of the elastic component.

[0018] In some embodiments of the surge protection module, the surge protection module also includes a shell, the shell forms a receiving cavity for accommodating the base, the tripping mechanism, the first pluggable electrode and the second pluggable electrode, and the base, the tripping mechanism, the first pluggable electrode and the second pluggable electrode are accommodated in the receiving cavity.

[0019] According to a second aspect, an embodiment provides a surge protector, comprising:

[0020] A base, wherein the base is provided with a conductive socket adapted to the first plug-in electrode and the second plug-in electrode;

[0021] According to the surge protection module of the first aspect of the present invention, the surge protection module is connected to the conductive socket in a pluggable manner through the first pluggable electrode and the second pluggable electrode; and

[0022] A locking structure, a part of which is arranged on the base, and another part of which is arranged on the surge protection module, and the surge protection module is detachably connected to the base through the locking structure.

[0023] Implementing the embodiments of the present invention will have the following beneficial effects:

[0024] According to the surge protection module and surge protector in the above embodiments, by forming at least two accommodating cavities for accommodating voltage limiting elements in the length direction of the base, different numbers of voltage limiting elements can be selected and installed in the accommodating cavities, and surge protection with different current carrying capacities can be achieved by using the same tripping mechanism, the first plug-in electrode, and the second plug-in electrode. There is no need to change the appearance of the surge protection product, making it more versatile. At the same time, the voltage limiting element is arranged in the accommodating cavity of the base along the length direction, which facilitates the installation of the surge protector in a space with limited height. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] in:

[0027] Figure 1 is an overall schematic diagram of a surge protector shown in one embodiment of the present invention;

[0028] Figure 2 is a schematic diagram of a surge protection module of a surge protector shown in an embodiment of the present invention;

[0029] Figure 3 is a schematic diagram of a base of a surge protector shown in an embodiment of the present invention;

[0030] Figure 4 is an exploded diagram of a surge protection module shown in an embodiment of the present invention when the voltage limiting element is a discharge tube;

[0031] Figure 5 is an exploded diagram of a surge protection module shown in an embodiment of the present invention when the voltage limiting element is a single-chip varistor;

[0032] Figure 6 is an exploded diagram of a surge protection module according to an embodiment of the present invention when the voltage limiting element is a dual-chip varistor;

[0033] Figure 7 is an exploded diagram of a surge protection module according to an embodiment of the present invention when the voltage limiting element is two dual-chip varistors;

[0034] Figure 8 is a schematic diagram of the internal structure of a surge protection module when the surge protection module is in a normal working state, shown in one embodiment of the present invention;

[0035] Fig. 9FIG. 1 is a schematic diagram of the interior of a surge protection module when the surge protection module is in a fault state, shown in an embodiment of the present invention.

[0036] Description of main component symbols:

[0037] 100 - base; 101 - optical display surface; 110 - receiving cavity; 120 - mounting cavity; 121 - communicating hole; 122 - through hole;

[0038] 200-voltage limiting element; 210-input end; 220-output end;

[0039] 300-tripping mechanism; 310-conductive part; 311-connecting member; 312-elastic conductive sheet; 320-driving member; 321-positioning protrusion; 330-elastic member;

[0040] 400-heat-fusing conductive material;

[0041] 500-first plug-in electrode; 510-second plug-in electrode;

[0042] 600-status indication assembly; 610-flexible indication sheet; 611-positioning hole; 612-avoidance hole; 620-elastic component;

[0043] 700-housing; 701-window; 710-connection part; 720-installation part;

[0044] 800-base; 810-conductive socket; 820-alarm device;

[0045] 900-locking structure; 910-holding portion; 911-buckle protrusion; 920-torsion spring; 930-guide portion; 931-buckle hole. DETAILED DESCRIPTION

[0046] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present invention are provided in the drawings. However, the present invention can be implemented in many other different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0047] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0049] An embodiment of the present invention provides a surge protector, such as Figure 1-3 As shown, the surge protector is used to prevent instantaneous overvoltage in the line from damaging electrical equipment. The surge protector includes a base 800, a surge protection module and a locking structure 900.

[0050] The base 800 is provided with a conductive plug hole 810 adapted to the first plug electrode 500 and the second plug electrode 510 .

[0051] The surge protection module is connected to the conductive socket 810 in a pluggable manner through the first pluggable electrode 500 and the second pluggable electrode 510 .

[0052] A portion of the locking structure 900 is disposed on the base 800 , and another portion is disposed on the surge protection module. The surge protection module is detachably connected to the base 800 via the locking structure 900 .

[0053] In view of the differences in the applicable environments of the protected systems, surge protectors of different specifications need to be installed to meet the needs of lightning protection and surge protection. Therefore, for manufacturers of equipment of the same specifications deployed throughout the country, installing surge protectors with different current carrying capacities is an inevitable measure to meet the standards and actual lightning protection needs. In order to facilitate equipment manufacturing and appearance, how to improve the versatility of lightning protection products is of great significance to equipment manufacturers.

[0054] In this regard, the surge protector in the embodiment of the present invention improves the structure of the surge protection module so that it has different current carrying capacities without changing the appearance of the surge protection product, thereby making the surge protector more versatile.

[0055] In the embodiment of the present invention, Figure 4-9 As shown, the surge protection module includes a base 100 , a voltage limiting element 200 , a tripping mechanism 300 , a first pluggable electrode 500 , and a second pluggable electrode 510 .

[0056] The base 100 has a length direction, and the base 100 is formed with at least two accommodating cavities 110 for accommodating the pressure limiting element 200 in the length direction;

[0057] The pressure limiting element 200 is received in the accommodating cavity 110;

[0058] Specifically, if Figure 4-7 As shown, the number of the voltage limiting element 200 can be one, which is accommodated in one accommodating cavity 110, such as one discharge tube, one single-chip varistor or one dual-chip varistor. Of course, the number of the voltage limiting element 200 can be multiple, which are respectively accommodated in multiple accommodating cavities 110, such as two dual-chip varistors or two discharge tubes respectively accommodated in two accommodating cavities 110.

[0059] It should be noted that by arranging different types and quantities of voltage limiting elements 200 in the accommodating cavity 110 , surge protection with different current carrying capacities can be achieved.

[0060] The tripping mechanism 300 is mounted on the base 100 , and the tripping mechanism 300 has a first state in which it is electrically connected to the input end 210 of the voltage limiting element 200 and a second state in which it is disconnected from the input end 210 of the voltage limiting element 200 ;

[0061] The first plug-in electrode 500 and the second plug-in electrode 510 are disposed on the base 100 and are electrically connected to the tripping mechanism 300 and the output end 220 of the voltage limiting element 200 , respectively.

[0062] In the embodiment of the present invention, at least two accommodating cavities 110 for accommodating the voltage limiting element 200 are formed in the length direction of the base 100, and different numbers of voltage limiting elements 200 can be selectively installed in the accommodating cavity 110, and surge protection with different current carrying capacities can be achieved by using the same tripping mechanism 300, the first pluggable electrode 500, and the second pluggable electrode 510, without changing the appearance of the surge protection product, so that it has higher versatility. At the same time, the voltage limiting element 200 is arranged in the accommodating cavity 110 of the base 100 along the length direction, which is convenient for the surge protector to be installed in a space with limited height.

[0063] In one embodiment, if Figure 4-9 As shown, the base 100 is in a rectangular shape, and the two accommodating cavities 110 are arranged at intervals along the length direction of the base 100. An installation cavity 120 is formed on the base 100 between the two accommodating cavities 110. The tripping mechanism 300 is at least partially installed in the installation cavity 120. The first plug-in electrode 500 and the second plug-in electrode 510 are respectively arranged on the two end surfaces of the base 100 in the height direction.

[0064] Specifically, the accommodating cavity 110 may be formed by removing part of the material of the base 100 . Of course, to facilitate manufacturing, the base 100 and the accommodating cavity 110 may be integrally injection molded by plastic.

[0065] By designing the base 100 as a rectangular parallelepiped, the surge protection module is made more regular in shape, the two accommodating cavities 110 are spaced apart along the length direction of the base 100, and an installation cavity 120 for installing the tripping mechanism 300 is formed on the base 100 between the two accommodating cavities 110, thereby reducing the height of the surge protection module and facilitating installation in a space with limited height.

[0066] In a specific embodiment, Figure 4-9 As shown, the tripping mechanism 300 includes a conductive portion 310 . When the tripping mechanism 300 is in a first state, the conductive portion 310 is electrically connected to the input end 210 . When the tripping mechanism 300 is in a second state, the conductive portion 310 is disconnected from the input end 210 .

[0067] It can be understood that the conductive part 310 is made of conductive material (such as copper). When the tripping mechanism 300 is in the first state, the system circuit is turned on and the surge protection module is in a normal working state; when the tripping mechanism 300 is in the second state, the system circuit is disconnected and the surge protection module is in a fault state.

[0068] In a more specific embodiment, Figure 4-9 As shown, connecting holes 121 communicating with the mounting cavity 120 are provided on both end surfaces in the width direction of the base 100, the conductive portion 310 includes a connector 311 and two elastic conductive sheets 312 symmetrically connected to the connector 311, the connector 311 is located outside the mounting cavity 120 and is provided with a gap with the outer surface of the base 100, one end of the two elastic conductive sheets 312 away from the connector 311 extends into the mounting cavity 120 through the connecting hole 121 and is fixed to the input end 210 of the voltage limiting element 200 through the thermally-fused conductive material 400, and the first electrode is electrically connected to the connector 311.

[0069] Specifically, the thermally-fuse conductive material 400 may be low-temperature solder, and the two elastic conductive sheets 312 are both conductive and have a certain elasticity. When the system voltage at both ends of the surge protection module encounters an abnormal increase, high surge energy, or the internal voltage-limiting element 200 deteriorates, high heat is generated to heat the thermally-fuse conductive material 400 on the two elastic conductive sheets 312, causing it to absorb heat and melt. After the thermally-fuse conductive material 400 melts, the two elastic conductive sheets 312 release the constraints of the thermally-fuse conductive material 400, and spring open under their own elasticity, breaking away from the contact with the input end 210 of the voltage-limiting element 200, thereby disconnecting the system circuit and protecting the electrical equipment in the system.

[0070] In a further more specific embodiment, Figure 4-9As shown, the tripping mechanism 300 also includes a driving member 320 and an elastic member 330. The driving member 320 and the elastic member 330 are arranged in the installation cavity 120 and are located between the two elastic conductive sheets 312. Under the action of the elastic member 330, the driving member 320 abuts against the connection between the two elastic conductive sheets 312 and the input end 210. When the thermal fuse conductive material 400 has not reached the melting temperature, the elastic member 330 is in an energy storage state, and the tripping mechanism 300 is in a first state at this time; when the thermal fuse conductive material 400 reaches the melting temperature and melts, the elastic member 330 drives the driving member 320 to move, disconnecting the elastic conductive sheet 312 from the input end 210, and the tripping mechanism 300 is in a second state at this time.

[0071] Specifically, the elastic member 330 can be a spring, a torsion spring 920, a rubber band, a spring leaf, or other components capable of storing and releasing energy. When the surge protection module is in normal working condition, the elastic member 330 (such as a spring) is in an energy storage state; when the system voltage at both ends of the surge protector encounters an abnormal increase, high surge energy, or the internal voltage limiting element 200 deteriorates, high heat is generated to heat the thermal fuse conductive material 400 (such as low-temperature solder) on the two elastic conductive sheets 312, so that the low-temperature solder melts. After the low-temperature solder melts, the constraint of the low-temperature solder between the two elastic conductive sheets 312 and the input end 210 is released, the spring releases energy, and the driving member 320 (such as a slider) pushes the elastic conductive sheet 312 and the input end 210 apart under the action of the spring, so that the elastic conductive sheet 312 and the input end 210 are out of contact.

[0072] In some embodiments, Figure 4-9 As shown, the surge protection module also includes a status indication component 600, which includes a flexible indication sheet 610. The flexible indication sheet 610 is attached to the outer surface of the base 100 and can move along the outer surface. It has a first position indicating a normal working state and a second position indicating a fault state on its moving path. When the trip mechanism 300 switches from the first state to the second state, the flexible indication sheet 610 moves from the first position to the second position.

[0073] Specifically, the flexible indicator sheet 610 is in the shape of a long strip and can be constructed using PET, Teflon film or a flexible circuit board. There is no need to process an injection mold, thus reducing the one-time investment cost.

[0074] By utilizing the flexible characteristics of the flexible indicator sheet 610, the working state of the surge protector module is associated with the action of the tripping mechanism 300, the structure is simple, the process requirements are reduced, and it is easy to construct and produce. The flexible indicator sheet 610 is attached to the outer surface of the base 100 and occupies almost no space. Moreover, the flexible indicator sheet 610 has a simple structure and is easy to produce. By providing a status indication component 600 including the flexible indicator sheet 610, it is convenient to observe the working state of the surge protection module, and the miniaturization and low-cost production of the surge protection module can be achieved, meeting the user's use requirements in multiple confined spaces.

[0075] In some specific embodiments, Figure 4-9 As shown, the outer surface of the base 100 has an optical display surface 101 and a remote signal linkage hole. When the flexible indicator sheet 610 is in the first position, the optical display surface 101 and the remote signal linkage hole are both blocked by the flexible indicator sheet 610. When the flexible indicator sheet 610 is in the second position, the remote signal linkage hole and the optical display surface 101 are exposed.

[0076] Furthermore, the status indication assembly 600 further includes an elastic component 620, the optical display surface 101 and the remote signal linkage hole are respectively arranged on the two end surfaces in the length direction of the base 100, the middle part of the flexible indication sheet 610 is slidably penetrated between the connecting member 311 and the outer surface of the base 100, the middle part of the flexible indication sheet 610 is provided with a positioning hole 611, the base 100 is provided with a through hole 122 corresponding to the positioning hole 611 and connected to the installation cavity 120, and the driving member 320 is provided with a through hole 122 that can extend out of the through hole 122 and be inserted into the positioning hole 611. The elastic component 620 connects the end of the flexible indicator sheet 610 corresponding to the remote signal linkage hole to the base 100. When the tripping mechanism 300 is in the first state, the flexible indicator sheet 610 is in the first position. At this time, the positioning protrusion 321 is inserted into the positioning hole 611, and the elastic component 620 is in the energy storage state; when the tripping mechanism 300 is in the second state, the positioning protrusion 321 is disengaged from the positioning hole 611, and the flexible indicator sheet 610 moves from the first position to the second position under the action of the elastic component 620.

[0077] Specifically, the optical display surface 101 is located on the outer surface of the base 100 and displays green. In order to better distinguish it from the optical display surface 101, the flexible indicator sheet 610 is red or black. Of course, the optical display surface 101 and the flexible indicator sheet 610 can also choose other colors that are easy to distinguish, which is not limited here.

[0078] An alarm device 820 corresponding to the remote signal linkage hole is provided on the base 800. When the remote signal linkage hole is blocked by the flexible indicator sheet 610, the alarm device 820 does not operate. When the remote signal linkage hole is in an open state, the alarm device 820 provided on the base 800 will sound an alarm to inform the user that a tripping situation has occurred.

[0079] When the surge protection module is in normal working state, the elastic component 620 (such as a spring) is in an energy storage state, the remote signal linkage hole is blocked by one end of the flexible indicator sheet 610, and the optical display surface 101 is blocked by the other end of the flexible indicator sheet 610. At this time, the optical display surface 101 cannot be observed, indicating that the surge protector is working normally. When the system voltage at both ends of the surge protector encounters an abnormal increase, high surge energy, or the internal voltage limiting element 200 deteriorates, high heat is generated to heat the thermal fuse conductive material 400 (such as low-temperature solder) on the two elastic conductive sheets 312, so that the low-temperature solder melts. After the low-temperature solder melts, the constraint of the low-temperature solder between the two elastic conductive sheets 312 and the input end 210 is released, the elastic member 330 releases energy, and the driving member 320 is in the elastic member 330. The elastic conductive sheet 312 is pushed apart from the input end 210 by the action of the driving member 320, and the positioning protrusion 321 originally inserted into the positioning hole 611 of the flexible indicator sheet 610 is disengaged from the positioning hole 611, and the elastic component 620 releases energy. The flexible indicator sheet 610 is moved from the first position to the second position by the action of the elastic component 620, so that the optical display surface 101 is exposed. At the same time, the avoidance hole 612 arranged on the flexible indicator sheet 610 close to the elastic component 620 is arranged to correspond to the remote signal linkage hole as the flexible indicator sheet 610 moves, so that the remote signal linkage hole is exposed. At this time, the alarm device 820 arranged on the base 800 will alarm to inform the user that a tripping situation has occurred. At the same time, the user can also determine that the surge protection module has failed and degraded by observing the optical display surface 101.

[0080] In some specific embodiments, Figure 2 and Figure 4-7 As shown, the surge protection module also includes a shell 700, and the shell 700 is formed with a receiving cavity for receiving the base 100, the tripping mechanism 300, the first pluggable electrode 500 and the second pluggable electrode 510. The base 100, the tripping mechanism 300, the first pluggable electrode 500 and the second pluggable electrode 510 are received in the receiving cavity. The shell 700 is also provided with a window 701 that is connected to the receiving cavity and corresponds to the optical display surface 101.

[0081] By providing the housing 700 , the base 100 , the tripping mechanism 300 , the first plugging electrode 500 and the second plugging electrode 510 can be protected. The window 701 on the housing 700 is convenient for observing the optical indication surface to determine whether the surge protection module is degraded or faulty.

[0082] In some more specific embodiments, Figure 1-9 As shown, the portion of the locking structure 900 located on the base 800 is a guide portion 930 (such as a guide plate) disposed on the base 800 and protruding outward, and a buckle hole 931 is disposed at one end of the guide portion 930 away from the base 800.

[0083] The part of the locking structure 900 located on the surge protection module is the plug-in portion 710 (such as a slide groove) arranged on the shell 700, the holding portion 910 and the torsion spring 920 rotatably arranged on the shell 700, wherein the plug-in portion 710 can be slidably engaged with the guide portion 930, and the end of the holding portion 910 away from the shell 700 is provided with a snap protrusion 911, and the snap protrusion 911 is snapped into the snap hole 931 through the rotation of the holding portion 910. When the snap protrusion 911 is snapped into the snap hole 931, the torsion spring 920 is in a deformed energy storage state. When the end of the guide portion 930 where the snap hole 931 is set is pressed along the direction indicated by the holding portion 910, the snap protrusion 911 is disengaged from the snap hole 931, and the holding portion 910 pops up outward under the action of the torsion spring 920, thereby releasing the lock between the surge protection module and the base 800.

[0084] Furthermore, the outer shell 700 is symmetrically provided with two mounting parts 720 on the side away from the base 800, and mounting holes are provided on the two mounting parts 720. The holding part 910 is symmetrically provided with two rotating shafts on one end away from the buckle protrusion 911. The two rotating shafts are rotatably set in the two mounting holes respectively, and the torsion spring 920 is passed through the rotating shaft and abuts against the outer shell 700.

[0085] Through the above design, when the surge protection module needs to be replaced, one end of the guide part 930 with the snap hole 931 is pressed along the direction indicated by the handle 910. Under the elastic force of the torsion spring 920, the snap protrusion 911 is disengaged from the snap hole 931, and the handle 910 bounces outward under the action of the torsion spring 920 to achieve unlocking. Then, the surge protection module and the base 800 can be freely plugged in and out by pulling the handle 910, thereby further improving the ease of use.

[0086] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0087] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A surge protection module, characterized in that: include: The base has a length direction, and the base is formed with two accommodating cavities in the length direction for accommodating different types and quantities of pressure-limiting elements; A pressure limiting element is accommodated in the accommodating cavity; A tripping mechanism is mounted on the base, and the tripping mechanism has a first state in which it is electrically connected to the input end of the voltage limiting element and a second state in which it is disconnected from the input end of the voltage limiting element; A first pluggable electrode and a second pluggable electrode are arranged on the base, the first pluggable electrode is electrically connected to the tripping mechanism, and the second pluggable electrode is electrically connected to the output end of the voltage limiting element; The base is in a rectangular shape, the two accommodating cavities are arranged at intervals along the length direction of the base, an installation cavity is formed on the base between the two accommodating cavities, the tripping mechanism is at least partially installed in the installation cavity, and the first plug-in electrode and the second plug-in electrode are respectively arranged on the two end surfaces of the base in the height direction.

2. The surge protection module according to claim 1, characterized in that: The tripping mechanism includes a conductive part. When the tripping mechanism is in the first state, the conductive part is electrically connected to the input end. When the tripping mechanism is in the second state, the conductive part is disconnected from the input end.

3. The surge protection module according to claim 2, characterized in that: The two end surfaces in the width direction of the base are provided with connecting holes connected to the installation cavity, the conductive part includes a connecting piece and two elastic conductive sheets symmetrically connected to the connecting piece, the connecting piece is located outside the installation cavity and is arranged with a gap with the outer surface of the base, one end of the two elastic conductive sheets away from the connecting piece extends into the installation cavity through the connecting hole and is fixed to the input end of the voltage limiting element through a thermally-fused conductive material, and the first plug-in electrode is electrically connected to the connecting piece.

4. The surge protection module according to claim 3, characterized in that: The tripping mechanism also includes a driving member and an elastic member, the driving member and the elastic member are arranged in the installation cavity and located between the two elastic conductive sheets, the driving member abuts against the connection between the two elastic conductive sheets and the input end under the action of the elastic member, when the thermal fuse conductive material has not reached the melting temperature, the elastic member is in an energy storage state, and the tripping mechanism is in the first state at this time; when the thermal fuse conductive material reaches the melting temperature and melts, the elastic member drives the driving member to move to disconnect the elastic conductive sheet from the input end, and the tripping mechanism is in the second state at this time.

5. The surge protection module according to claim 4, characterized in that: The surge protection module also includes a status indication component, which includes a flexible indicator sheet. The flexible indicator sheet is attached to the outer surface of the base and can move along the outer surface. The flexible indicator sheet has a first position indicating a normal working state and a second position indicating a fault state on its moving path. When the trip mechanism switches from the first state to the second state, the flexible indicator sheet moves from the first position to the second position.

6. The surge protection module according to claim 5, characterized in that: The outer surface of the base has an optical display surface and a remote signal linkage hole. When the flexible indicator sheet is in the first position, the optical display surface and the remote signal linkage hole are both blocked by the flexible indicator sheet. When the flexible indicator sheet is in the second position, the remote signal linkage hole and the optical display surface are exposed.

7. The surge protection module according to claim 6, characterized in that: The status indication assembly also includes an elastic component, the optical display surface and the remote signal linkage hole are respectively arranged on the two end surfaces in the length direction of the base, the middle part of the flexible indicator sheet is slidably penetrated between the connecting member and the outer surface of the base, the middle part of the flexible indicator sheet is provided with a positioning hole, the base is provided with a through hole corresponding to the positioning hole and connected to the mounting cavity, the driving member is provided with a positioning protrusion that can extend out of the through hole and insert into the positioning hole, the elastic component connects the end of the flexible indicator sheet corresponding to the remote signal linkage hole with the base, when the tripping mechanism is in the first state, the flexible indicator sheet is in the first position, at this time, the positioning protrusion is inserted into the positioning hole, and the elastic component is in the energy storage state; when the tripping mechanism is in the second state, the positioning protrusion is disengaged from the positioning hole, and the flexible indicator sheet moves from the first position to the second position under the action of the elastic component.

8. The surge protection module according to any one of claims 1 to 7, characterized in that: The surge protection module further includes a shell having a receiving cavity for receiving the base, the tripping mechanism, the first pluggable electrode and the second pluggable electrode. The base, the tripping mechanism, the first pluggable electrode and the second pluggable electrode are received in the receiving cavity.

9. A surge protector, characterized in that: include: A base, wherein the base is provided with a conductive socket adapted to the first plug-in electrode and the second plug-in electrode; A surge protection module as described in any one of claims 1 to 8, wherein the surge protection module is connected to the conductive socket in a pluggable manner through the first pluggable electrode and the second pluggable electrode; and a locking structure, a part of which is arranged on the base, and another part is arranged on the surge protection module, and the surge protection module is detachably connected to the base through the locking structure.

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