CN214627591U

CN214627591U - Surge protection module and surge protector

Info

Publication number: CN214627591U
Application number: CN202120351995.1U
Authority: CN
Inventors: 吴蕴岭
Original assignee: Hongling Electric Technology Shanghai Co Ltd
Current assignee: Wu Yunling
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-11-05
Anticipated expiration: 2031-02-08

Abstract

The utility model discloses a surge protection module and a surge protector, wherein the surge protection module comprises a base, the base is provided with a length direction, and at least two accommodating cavities for accommodating voltage-limiting elements are formed on the base in the length direction; the pressure limiting element is accommodated in the accommodating cavity; a tripping mechanism; the first plugging electrode and the second plugging electrode are arranged on the base and are respectively and electrically connected with the tripping mechanism and the output end of the voltage limiting element. The base is provided with at least two containing cavities for containing the voltage limiting elements, the voltage limiting elements with different quantities can be selectively installed in the containing cavities, surge protection with different through-current capacities can be realized by using the same tripping mechanism, the first plugging electrode and the second plugging electrode, the appearance of a surge protection product does not need to be changed, and the surge protection product has higher universality.

Description

Surge protection module and surge protector

Technical Field

The utility model relates to a lightning protection equipment technical field especially relates to a surge protection module and surge protector.

Background

Surge protectors are commonly used in electrical lines in homes, offices, industrial sites, etc. to prevent damage to electrical equipment from transient overvoltages in the lines. When spike current or spike voltage is suddenly generated in an electric loop or a communication line due to external interference, the surge protector can conduct shunting in a very short time, so that damage of surge to other equipment in the loop is avoided.

Aiming at the requirement of the protected system for environmental difference, generally, after lightning risk assessment is carried out by professionals, surge protectors with different specifications need to be installed so as to meet the requirements of lightning protection and surge prevention, and particularly in areas with high thunderstorm weather, the required lightning current discharge capacity is obviously higher than that of conventional products. Therefore, for equipment manufacturers with the same specification and arranged all over the country, installing surge protectors with different current capacities is a necessary measure for meeting the standard and the actual lightning protection requirements, and the surge protectors are very important for the equipment manufacturers, so that the surge protectors are convenient for equipment manufacture and appearance, and how to improve the universality of lightning protection products.

Particularly for the application scene of the power supply in the communication industry, because the height provided for installing the surge protector in the equipment is usually not higher than 40mm, the surge protector belongs to the general requirement, and how to install the surge protector which can be compatible with different current capacities under the limited height becomes a problem to be solved urgently in the industry.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a surge protection module and surge protector for solve the current through-flow capacity that current surge protector can not compatible difference, the poor problem of commonality.

To this end, according to a first aspect, an embodiment provides a surge protection module comprising:

the pressure limiting device comprises a base, a pressure limiting element and a pressure limiting component, wherein the base is provided with a length direction, and at least two accommodating cavities for accommodating the pressure limiting element are formed in the length direction of the base;

the pressure limiting element is accommodated in the accommodating cavity;

the tripping mechanism is arranged on the base and has a first state electrically connected with the input end of the voltage limiting element and a second state disconnected with the input end of the voltage limiting element;

the first plugging electrode is electrically connected to the tripping mechanism, and the second plugging electrode is electrically connected to the output end of the voltage limiting element.

In some embodiments of the surge protection module, the base is rectangular, the two receiving cavities are spaced apart from each other along a length direction of the base, a mounting cavity is formed in the base between the two receiving cavities, the tripping mechanism is at least partially mounted in the mounting cavity, and the first plug electrode and the second plug electrode are respectively disposed on two end faces of the base in a height direction.

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

In some embodiments of the surge protection module, the two end faces of the base in the width direction are provided with communication holes communicated with the installation cavity, each conductive part comprises a connecting piece and two elastic conductive sheets symmetrically connected to the connecting piece, the connecting piece is located outside the installation cavity and arranged in a gap with the outer surface of the base, one end of each elastic conductive sheet far away from the connecting piece extends into the installation cavity through the communication holes and is fixedly connected to the input end of the voltage limiting element through a thermal-fusing conductive material, and the first plugging electrode is electrically connected to the connecting piece.

In some embodiments of the surge protection module, the trip mechanism further includes a driving element and an elastic element, the driving element and the elastic element are disposed in the installation cavity and located between the two elastic conductive sheets, the driving element abuts against a connection between the two elastic conductive sheets and the input end under the action of the elastic element, when the thermally fused conductive material does not reach a fusing temperature, the elastic element is in an energy storage state, and at this time, the trip mechanism is in the first state; when the thermal fusing conductive material is fused when reaching the fusing temperature, the elastic piece drives the driving piece to move, the elastic conducting strip is disconnected from the input end, and at the moment, the tripping mechanism is in the second state.

In some embodiments of the surge protection module, the surge protection module further comprises a status indicating assembly comprising a flexible indicator tab affixed to and movable along an outer surface of the base, having a first position on its path of travel indicating a normal operating condition and a second position indicating a fault condition, the flexible indicator tab moving from the first position to the second position when the trip mechanism switches from the first state to the second state.

In some embodiments of the surge protection module, the outer surface of the base has an optical display surface and a remote signaling linkage hole, the optical display surface and the remote signaling linkage hole are both covered by the flexible indicator sheet when the flexible indicator sheet is in the first position, and the remote signaling linkage hole and the optical display surface are exposed when the flexible indicator sheet is in the second position.

In some embodiments of the surge protection module, the status indicating assembly further includes an elastic component, the optical display surface and the remote signaling linkage hole are respectively disposed on two end surfaces of the base in the length direction, a middle portion of the flexible indicating sheet is slidably disposed between the connecting member and the outer surface of the base, a positioning hole is disposed in the middle portion of the flexible indicating sheet, a through hole corresponding to the positioning hole and communicating with the installation cavity is disposed on the base, a positioning protrusion capable of extending out of the through hole and being inserted into the positioning hole is disposed on the driving member, the elastic component connects one end of the flexible indicating sheet corresponding to the remote signaling linkage hole with the base, when the tripping mechanism is in the first status, the flexible indicating sheet is in the first position, and at this time, the positioning protrusion is inserted into the positioning hole, and the elastic component is in an energy storage state; when the tripping mechanism is in the second state, the positioning protrusion is disengaged from the positioning hole, and the flexible indicating sheet moves from the first position to the second position under the action of the elastic component.

In some embodiments of the surge protection module, the surge protection module further comprises a housing, the housing is formed with a receiving cavity for receiving the base, the tripping mechanism, the first plug electrode and the second plug electrode, and the base, the tripping mechanism, the first plug electrode and the second plug electrode are received in the receiving cavity.

According to a second aspect, there is provided in an embodiment a surge protector device comprising:

the base is provided with a conductive jack matched with the first plugging electrode and the second plugging electrode;

according to the surge protection module of the first aspect of the present invention, the surge protection module is connected to the conductive jack in a pluggable manner through the first plug electrode and the second plug electrode; and

the surge protection module comprises a locking structure, one part of the locking structure is arranged on the base, the other part of the locking structure is arranged on the surge protection module, and the surge protection module is detachably connected with the base through the locking structure.

Implement the embodiment of the utility model provides a, will have following beneficial effect:

according to the surge protection module and the surge protection device in the above embodiments, at least two accommodating cavities for accommodating the voltage limiting elements are formed in the length direction of the base, different numbers of voltage limiting elements can be selectively installed in the accommodating cavities, surge protection with different through-current capacities is realized by using the same tripping mechanism, the first plugging electrode and the second plugging electrode, the appearance of a surge protection product does not need to be changed, and the surge protection product has higher universality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Wherein:

fig. 1 is an overall schematic view of a surge protector according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a surge protection module of a surge protector according to an embodiment of the present invention;

fig. 3 is a schematic view of a base of a surge protector according to an embodiment of the present invention;

fig. 4 is an exploded view of a surge protection module according to an embodiment of the present invention, in which the voltage limiting element is a discharge tube;

fig. 5 is an exploded view of a voltage limiting element of a surge protection module according to an embodiment of the present invention, which is a single chip varistor;

fig. 6 is an exploded view of a voltage limiting element of a surge protection module according to an embodiment of the present invention, which is a dual-chip varistor;

fig. 7 is an exploded view of a surge protection module according to an embodiment of the present invention, in which the voltage limiting elements are two dual-chip piezoresistors;

fig. 8 is a schematic diagram of an internal structure of a surge protection module in a normal operating state according to an embodiment of the present invention;

fig. 9 is an internal schematic view of a surge protection module in a fault state according to an embodiment of the present invention.

Description of the main element symbols:

100-a base; 101-an optical display surface; 110-a housing chamber; 120-a mounting cavity; 121-a communication hole; 122-a through hole;

200-a voltage limiting element; 210-an input terminal; 220-an output terminal;

300-a trip mechanism; 310-a conductive portion; 311-a connector; 312-an elastic conductive sheet; 320-a drive member; 321-a positioning bulge; 330-an elastic member;

400-thermal fusing of the conductive material;

500-a first puller electrode; 510-a second pluggable electrode;

600-a status indication component; 610-a flexible indicator sheet; 611-positioning holes; 612-avoidance holes; 620-an elastic member;

700-a housing; 701-window; 710-a plug-in part; 720-a mounting portion;

800-a base; 810-conductive jacks; 820-an alarm device;

900-locking structure; 910-a grip portion; 911-snap protrusions; 920-torsion spring; 930-a guide; 931-snap hole.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

An embodiment of the present invention provides a surge protection device, as shown in fig. 1-3, for preventing damage to electrical equipment from transient overvoltage in a line, the surge protection device including a base 800, a surge protection module, and a latch structure 900.

The base 800 is provided with a conductive socket 810 adapted to the first and

second electrodes

500, 510.

The surge protection module is pluggable to the conductive jack 810 through the first and second plugging

electrodes

500 and 510.

One part of the locking structure 900 is disposed on the base 800, and the other part is disposed on the surge protection module, and the surge protection module is detachably connected to the base 800 through the locking structure 900.

The surge protectors with different specifications are required to be installed according to the requirement of the protected system for meeting the requirements of lightning protection and surge protection, so that for equipment manufacturers with the same specification and arranged all over the country, the installation of the surge protectors with different current capacities is a necessary measure for meeting the standard and the actual lightning protection requirement, and the surge protectors are convenient for equipment manufacture and appearance, how to improve the universality of lightning protection products, and have very important significance for the equipment manufacturers.

Therefore, the embodiment of the present invention provides a surge protection device improves the structure of surge protection module, makes it possess different through-current capabilities, and need not to change the outward appearance of surge protection product to make this surge protection device have higher commonality.

In the embodiment of the present invention, as shown in fig. 4 to 9, the surge protection module includes a base 100, a voltage limiting element 200, a tripping mechanism 300, a first plug electrode 500, and a second plug electrode 510.

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;

the pressure limiting element 200 is accommodated in the accommodating cavity 110;

specifically, as shown in fig. 4-7, the number of the voltage limiting elements 200 may be one, and the voltage limiting elements are 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 elements 200 may be multiple, and the voltage limiting elements 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.

It should be noted that, by arranging different types and numbers of voltage limiting elements 200 in the accommodating cavity 110, the surge protection with different current capacities can be realized.

The trip mechanism 300 is installed on the base 100, and the trip mechanism 300 has a first state electrically connected with the input end 210 of the voltage limiting element 200 and a second state disconnected with the input end 210 of the voltage limiting element 200;

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

The embodiment of the present invention provides an accommodating cavity 110 for accommodating voltage limiting element 200 at least two positions formed in the length direction of base 100, the voltage limiting element 200 with different numbers can be selectively installed in the accommodating cavity 110 by the use of the same tripping mechanism 300, the surge protection with different through-current capacities can be realized by first plug electrode 500 and second plug electrode 510, the appearance of the surge protection product does not need to be changed, so that the surge protection product has higher universality, and meanwhile, the voltage limiting element 200 is arranged in the accommodating cavity 110 of the base 100 along the length direction, so that the surge protection device can be installed in a space with limited height.

In one embodiment, as shown in fig. 4 to 9, the base 100 has a rectangular parallelepiped shape, two receiving cavities 110 are disposed at intervals along a length direction of the base 100, a mounting cavity 120 is formed on the base 100 between the two receiving cavities 110, the trip mechanism 300 is at least partially mounted in the mounting cavity 120, and the first plug electrode 500 and the second plug electrode 510 are respectively disposed on two end surfaces of the base 100 in a height direction.

Specifically, the receiving cavity 110 may be formed by removing a portion of the material from the base 100, and of course, the base 100 and the receiving cavity 110 may be integrally injection molded by plastic for manufacturing convenience.

The base 100 is designed to be cuboid, so that the surge protection module is more regular in shape, the two accommodating cavities 110 are arranged at intervals along the length direction of the base 100, and the mounting cavity 120 for mounting the tripping mechanism 300 is formed on the base 100 between the two accommodating cavities 110, so that the height of the surge protection module is reduced, and the surge protection module can be conveniently mounted in a space with limited height.

In one specific embodiment, as shown in fig. 4-9, the trip mechanism 300 includes a conductive portion 310, the conductive portion 310 being electrically connected to the input 210 when the trip mechanism 300 is in the first state, and the conductive portion 310 being disconnected from the input 210 when the trip mechanism 300 is in the second state.

It is understood that the conductive portion 310 is made of a conductive material (e.g., copper), when the trip mechanism 300 is in the first state, the system circuit is turned on, and the surge protection module is in a normal operating state; when the trip mechanism 300 is in the second state, the system circuit is open and the surge protection module is in a fault state.

In a more specific embodiment, as shown in fig. 4-9, the two end faces of the base 100 in the width direction are provided with a communication hole 121 communicating with the mounting cavity 120, the conductive portion 310 includes a connecting member 311 and two elastic conductive sheets 312 symmetrically connected to the connecting member 311, the connecting member 311 is located outside the mounting cavity 120 and spaced apart from the outer surface of the base 100, one end of the two elastic conductive sheets 312 away from the connecting member 311 extends into the mounting cavity 120 through the communication hole 121 and is fixed to the input end 210 of the voltage limiting element 200 through the thermal fusing conductive material 400, and the first plug electrode 500 is electrically connected to the connecting member 311.

Specifically, the thermal fuse conductive material 400 may be low-temperature solder, the two elastic conductive sheets 312 can conduct electricity and have certain elasticity, when the system voltage at the two ends of the surge protection module is abnormally increased, under the action of high surge energy, or after the internal voltage limiting element 200 is degraded, high heat is generated to heat the thermal fuse conductive material 400 on the two elastic conductive sheets 312, so that the thermal fuse conductive material absorbs heat to melt, after the thermal fuse conductive material 400 melts, the two elastic conductive sheets 312 release the constraint of the thermal fuse conductive material 400, and spring away under the action of the elasticity of the two elastic conductive sheets 312, so as to break the system circuit and protect the electrical equipment in the system.

In a more specific embodiment, as shown in fig. 4 to 9, the trip mechanism 300 further includes an actuating member 320 and an elastic member 330, the actuating member 320 and the elastic member 330 are disposed in the installation cavity 120 and located between the two elastic conductive sheets 312, the actuating member 320 abuts against a connection between the two elastic conductive sheets 312 and the input end 210 under the action of the elastic member 330, when the thermal fuse conductive material 400 does not reach the fusing temperature, the elastic member 330 is in the energy storage state, and at this time, the trip mechanism 300 is in the first state; when the thermally fused conductive material 400 reaches the fusing temperature and is fused, the elastic member 330 drives the driving member 320 to move, so as to disconnect the elastic conductive sheet 312 from the input end 210, and the trip mechanism 300 is in the second state.

Specifically, the elastic element 330 may be a spring, a torsion spring 920, a rubber band, a reed, or other components having energy storage and release functions, and when the surge protection module is in a normal working state, the elastic element 330 (e.g., the spring) is in an energy storage state; when the system voltage at the two ends of the surge protector is abnormally increased, under the action of high surge energy or after the internal voltage limiting element 200 is degraded, high heat is generated to heat the thermal fusing conductive material 400 (such as low-temperature soldering tin) on the two elastic conductive sheets 312, so that the low-temperature soldering tin is melted, after the low-temperature soldering tin is melted, the constraint of the low-temperature soldering tin is removed between the two elastic conductive sheets 312 and the input end 210, the spring releases energy, and the driving piece 320 (such as a sliding block) pushes the elastic conductive sheets 312 and the input end 210 open under the action of the spring, so that the elastic conductive sheets 312 are separated from the input end 210.

In some embodiments, as shown in fig. 4-9, the surge protection module further comprises a status indicating assembly 600, the status indicating assembly 600 comprising a flexible indicating tab 610, the flexible indicating tab 610 affixed to and movable along an outer surface of the base 100 having a first position indicating a normal operating state and a second position indicating a fault state in its path of movement, the flexible indicating tab 610 moving from the first position to the second position when the trip mechanism 300 switches from the first state to the second state.

Specifically, the flexible indicating sheet 610 is in a strip shape, and can be constructed by using a PET film, a teflon film or a flexible circuit board, so that an injection mold does not need to be processed, and the one-time investment cost is reduced.

Through the flexible characteristic that utilizes flexible indicator piece 610, the operating condition of surge protector module is correlated with tripping device 300's action, moreover, the steam generator is simple in structure, the technological requirement has been reduced, easily structure and production, flexible indicator piece 610 is attached in the surface setting of base 100, hardly occupy the space, and flexible indicator piece 610 simple structure, the manufacturing of being convenient for, indicate subassembly 600 through the state that sets up including flexible indicator piece 610, be convenient for observe the operating condition of surge protection module, can realize the volume miniaturization and the low-cost production of surge protection module, satisfy the user's operation requirement in a plurality of restricted spaces.

In some embodiments, as shown in fig. 4-9, the outer surface of the base 100 has an optical display surface 101 and a remote signaling linkage hole, the optical display surface 101 and the remote signaling linkage hole are both covered by the flexible indicator sheet 610 when the flexible indicator sheet 610 is in the first position, and the remote signaling linkage hole and the optical display surface 101 are exposed when the flexible indicator sheet 610 is in the second position.

Further, the status indicating assembly 600 further includes an elastic component 620, the optical display surface 101 and the remote signaling linkage hole are respectively disposed on two end surfaces of the base 100 in the length direction, the middle portion of the flexible indicating sheet 610 is slidably disposed between the connecting member 311 and the outer surface of the base 100, the middle portion of the flexible indicating 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 communicating with the installation cavity 120, the driving member 320 is provided with a positioning protrusion 321 capable of extending out of the through hole 122 and inserting into the positioning hole 611, the elastic component 620 connects one end of the flexible indicating sheet 610 corresponding to the remote signaling linkage hole with the base 100, when the tripping mechanism 300 is in the first state, the flexible indicating sheet 610 is in the first position, the positioning protrusion 321 is inserted into the positioning hole 611, and the elastic component 620 is in the energy storage state; when the trip mechanism 300 is in the second state, the positioning protrusion 321 is disengaged from the positioning hole 611, and the flexible indicating sheet 610 moves from the first position to the second position under the action of the elastic component 620.

Specifically, the optical display surface 101 is located on the outer surface of the base 100 and displays green, and the flexible indicating sheet 610 is red or black for better distinguishing from the optical display surface 101, although other colors for easy distinguishing may be selected for the optical display surface 101 and the flexible indicating sheet 610, and are not limited herein.

The alarm device 820 corresponding to the remote signaling linkage hole is arranged on the base 800, when the remote signaling linkage hole is shielded by the flexible indicating sheet 610, the alarm device 820 does not act, and when the remote signaling linkage hole is in an open state, the alarm device 820 arranged on the base 800 gives an alarm to inform a user that a tripping condition occurs.

When the surge protection module is in a normal working state, the elastic component 620 (such as a spring) is in an energy storage state, the remote signaling linkage hole is shielded by one end of the flexible indicating sheet 610, and the optical display surface 101 is shielded by the other end of the flexible indicating sheet 610, at this time, the optical display surface 101 cannot be observed, which indicates that the surge protector works normally; when system voltage at two ends of the surge protector is abnormally increased, under the action of high surge energy or after the internal voltage limiting element 200 is degraded, high heat is generated to heat thermally fused conductive materials 400 (such as low-temperature soldering tin) on the two elastic conductive sheets 312, so that the low-temperature soldering tin is melted, after the low-temperature soldering tin is melted, the constraint of the low-temperature soldering tin is removed between the two elastic conductive sheets 312 and the input end 210, the elastic member 330 releases energy, the driving member 320 pushes the elastic conductive sheets 312 and the input end 210 apart under the action of the elastic member 330, the driving member 320 moves to enable the positioning protrusions 321 originally inserted into the positioning holes 611 of the flexible indicating sheets 610 to be separated from the positioning holes 611, the elastic member 620 releases energy, the flexible indicating sheets 610 move from the first position to the second position under the action of the elastic member 620 to enable the optical display surface 101 to be exposed, and simultaneously, the avoiding holes 612 arranged on the flexible indicating sheets 610 and close to the elastic member 620 move along with the flexible indicating sheets 610 to correspond to remote signaling linkage holes, the remote signaling linkage hole is exposed, at this time, the alarm device 820 arranged on the base 800 gives an alarm to inform a user that the tripping condition occurs, and meanwhile, the user can also determine that the surge protection module is damaged by failure and deteriorated by observing the optical display surface 101.

In some specific embodiments, as shown in fig. 2 and fig. 4 to 7, the surge protection module further includes a housing 700, the housing 700 forms a receiving cavity for receiving the base 100, the trip mechanism 300, the first plug electrode 500 and the second plug electrode 510, the base 100, the trip mechanism 300, the first plug electrode 500 and the second plug electrode 510 are received in the receiving cavity, and the housing 700 further has a window 701 communicating with the receiving cavity and corresponding to the optical display surface 101.

By providing the housing 700, the base 100, the trip mechanism 300, the first plug electrode 500, and the second plug electrode 510 can be protected, and the optical indication surface can be observed through the window 701 on the housing 700, so as to determine whether the surge protection module is degraded or failed.

In some more specific embodiments, as shown in fig. 1 to 9, the portion of the locking structure 900 located on the base 800 is a guiding portion 930 (e.g. a guiding plate) disposed on the base 800 and protruding outward, and an end of the guiding portion 930 away from the base 800 is provided with a locking hole 931.

The part of the latch 900 located on the surge protection module is an insertion part 710 (such as a sliding slot) provided on the housing 700, a holding part 910 rotatably provided on the housing 700, and a torsion spring 920, wherein the insertion part 710 is slidably engaged with the guide part 930, one end of the holding part 910 away from the housing 700 is provided with a latch protrusion 911, the latch protrusion 911 is latched into a latch hole 931 by the rotation of the holding part 910, when the latch protrusion 911 is latched into the latch hole 931, the torsion spring 920 is in a deformation energy storage state, when one end of the latch hole 931 provided by pressing the guide part 930 in the direction indicated by the holding part 910 is disengaged from the latch hole 931, and the holding part 910 is outwardly sprung by the torsion spring 920 to release the locking between the surge protection module and the base 800.

Further, the housing 700 is symmetrically provided with two mounting portions 720 on one side away from the base 800, the two mounting portions 720 are both provided with mounting holes, the holding portion 910 is symmetrically provided with two rotating shafts at one end away from the fastening protrusion 911, the two rotating shafts are respectively rotatably disposed in the two mounting holes, and the torsion spring 920 is disposed on the rotating shafts in a penetrating manner and abuts against the housing 700.

With the above-described configuration, when the surge protection module needs to be replaced, the one end of the hooking hole 931 is provided to the pressing guide 930 in the direction indicated by the grip portion 910, the hooking protrusion 911 is disengaged from the hooking hole 931 by the elastic force of the torsion spring 920, and the grip portion 910 is sprung outward by the torsion spring 920 to unlock the surge protection module, and then the grip portion 910 is pulled to freely insert and remove the surge protection module from and from the base 800, thereby further improving the ease of use.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples are merely illustrative of several embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the claims. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A surge protection module, comprising:

the pressure limiting element is accommodated in the accommodating cavity;

2. The surge protection module of claim 1, wherein the base is rectangular, the two receiving cavities are spaced apart from each other along a length direction of the base, a mounting cavity is formed on the base between the two receiving cavities, the trip mechanism is at least partially mounted in the mounting cavity, and the first plug electrode and the second plug electrode are respectively disposed on two end surfaces of the base in a height direction.

3. The surge protection module of claim 2 wherein the trip mechanism includes a conductive portion, the conductive portion being electrically connected to the input when the trip mechanism is in the first state, the conductive portion being disconnected from the input when the trip mechanism is in the second state.

4. A surge protection module according to claim 3, wherein communication holes are provided on both end surfaces of the base in the width direction, the communication holes are communicated with the mounting cavity, the conductive part comprises a connecting piece and two elastic conductive sheets symmetrically connected to the connecting piece, the connecting piece is located outside the mounting cavity and is arranged in a gap with the outer surface of the base, one end of each of the two elastic conductive sheets, which is far away from the connecting piece, extends into the mounting cavity through the communication holes and is fixedly connected to the input end of the voltage limiting element through a thermal fuse conductive material, and the first plug electrode is electrically connected to the connecting piece.

5. The surge protection module of claim 4, wherein the trip mechanism further comprises a driving member and an elastic member, the driving member and the elastic member are disposed in the mounting cavity and located between the two elastic conductive sheets, the driving member abuts against a connection between the two elastic conductive sheets and the input end under the action of the elastic member, and when the thermally fused conductive material does not reach a fusing temperature, the elastic member is in an energy storage state, and the trip mechanism is in the first state; when the thermal fusing conductive material is fused when reaching the fusing temperature, the elastic piece drives the driving piece to move, the elastic conducting strip is disconnected from the input end, and at the moment, the tripping mechanism is in the second state.

6. The surge protection module of claim 5 further comprising a status indicating assembly including a flexible indicator tab affixed to and movable along an outer surface of the base, the flexible indicator tab having a first position on its path of travel indicating a normal operating condition and a second position indicating a fault condition, the flexible indicator tab moving from the first position to the second position when the trip mechanism switches from the first state to the second state.

7. The surge protection module of claim 6, wherein the outer surface of the base has an optical display surface and a remote signaling linkage hole, wherein the optical display surface and the remote signaling linkage hole are both obscured by the flexible indicator sheet when the flexible indicator sheet is in the first position, and wherein the remote signaling linkage hole and the optical display surface are exposed when the flexible indicator sheet is in the second position.

8. The surge protection module of claim 7, wherein the status indicating assembly further comprises an elastic member, the optical display surface and the remote signaling linkage hole are respectively disposed on two end surfaces of the base in the length direction, the middle portion of the flexible indicating sheet is slidably disposed between the connecting member and the outer surface of the base, the middle portion of the flexible indicating sheet is provided with a positioning hole, the base is provided with a through hole corresponding to the positioning hole and communicating with the mounting cavity, the driving member is provided with a positioning protrusion capable of extending out of the through hole and being inserted into the positioning hole, the elastic member connects one end of the flexible indicating sheet corresponding to the remote signaling linkage hole with the base, when the tripping mechanism is in the first status, the flexible indicating sheet is in the first position, and the positioning protrusion is inserted into the positioning hole, and the elastic component is in an energy storage state; when the tripping mechanism is in the second state, the positioning protrusion is disengaged from the positioning hole, and the flexible indicating sheet moves from the first position to the second position under the action of the elastic component.

9. The surge protection module of any of claims 1-8, further comprising a housing formed with a receiving cavity for receiving the base, the trip mechanism, the first mating electrode, and the second mating electrode, the base, the trip mechanism, the first mating electrode, and the second mating electrode being received within the receiving cavity.

10. A surge protector device, comprising:

the surge protection module of any of claims 1-9, wherein the surge protection module is pluggably connected to the conductive jack by the first and second plug electrodes; and