Surge protector and surge protection device

Abstract

The embodiment of the invention provides a surge protector and a surge protection device. The surge protector comprises: a housing comprising a line pin and a grounding pin; a surge protection component accommodated in the housing and coupled to the ground pin, the surge protection component having a width smaller than a height and a length so as to be flat; the tripping assembly comprises a fusing part which is arranged in the shell and is integrally positioned on one side of the surge protection part in the height direction, and the fusing part is coupled to the circuit pin and is electrically connected to the surge protection part through solder; and a separating member coupled between the fusing member and the surge protection member via an elastic member and adapted to move to a tripping position when the solder melts. According to the surge protector disclosed by the embodiment of the invention, the tripping assembly and the surge protection component are arranged up and down along the height direction, so that the height space of the module is fully utilized, the occupation of the width space is reduced, and the formation of the ultrathin surge protector is facilitated.

Description

Technical Field

[0001] Example embodiments of the present disclosure generally relate to the field of electronic device protection, and more particularly to a surge protector and a surge protection device. Background Art

[0002] Surge protector, also called lightning arrester, is an electronic device that provides safety protection for various electronic equipment, instruments and meters, and communication lines. 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 in a very short time, thereby preventing the surge from damaging other equipment in the circuit. In order to meet the requirements of surge discharge and failure release, the current surge protector is generally 18mm wide in single pole, and the corresponding low-temperature solder joint release mechanism is generally about 15mm wide. This size of surge protector cannot meet the current market demand for compact products. Summary of the invention

[0003] In the first aspect of the present disclosure, a surge protector is provided. The surge protector comprises: a housing, including a line pin and a ground pin so as to couple the surge protector to a protected circuit; a surge protection component, which is accommodated in the housing and coupled to the ground pin so as to be suitable for conducting when the voltage of the circuit exceeds a predetermined threshold, and the width of the surge protection component is smaller than the height and length so as to be flat; and a trip assembly, comprising: a fuse component, which is arranged in the housing and is located on one side of the surge protection component in the height direction as a whole, the fuse component is coupled to the line pin and is electrically connected to the surge protection component through solder, and the solder is suitable for melting when the trip condition is met; and a separation component, which is coupled between the fuse component and the surge protection component via an elastic component, and is suitable for moving to a trip position under the action of the elastic force of the elastic component when the solder melts to disconnect the electrical connection between the fuse component and the surge protection component.

[0004] In some embodiments, the surge protector further comprises: a protrusion protruding from a welding side edge of the surge protection component located on one side in the height direction, so as to be suitable for coupling with the fuse component.

[0005] In some embodiments, the fuse component includes: a pivot coupling section, coupled to the connecting spring and including a pivot coupling portion, via which the fuse component is coupled to the shell; a welding coupling section, including a welding groove, suitable for allowing the protrusion to enter and allowing at least a portion of the welding coupling section and the protrusion to be welded together by solder; and an intermediate section, located between the pivot coupling section and the welding coupling section in the extension direction of the fuse component, and forming a non-zero angle with the pivot coupling section and the welding coupling section, respectively.

[0006] In some embodiments, the shell includes: a first half shell and a second half shell, which are coupled together along the width direction of the shell to form a accommodating space; a pair of pivot coupling grooves, which are respectively arranged in the first half shell and the second half shell; and a pivot shaft, which is coupled to the pivot coupling part and the ends of the pivot shaft are respectively arranged in a pair of pivot coupling grooves to allow the fuse component to rotate around the pivot shaft.

[0007] In some embodiments, the pivot coupling groove is a waist-shaped groove, and the center connection direction of the waist-shaped groove is perpendicular to the welding side.

[0008] In some embodiments, the separation component includes: a pushing portion, including an inclined pushing surface and a raised portion located at the end of the inclined pushing surface, the inclined pushing surface is suitable for abutting against the middle section, and pushing the middle section to rotate the fuse component when the solder melts, so that after the separation component moves to the tripping position, the raised portion abuts against the fuse component.

[0009] In some embodiments, the housing further comprises an indication window, and wherein the disconnect component further comprises an indication tab, the indication tab being arranged to be aligned with the indication window when the disconnect component is in the tripped position.

[0010] In some embodiments, the trip assembly also includes: a movable arm, coupled to the separation component, and extending from the separation component in the height direction to the bottom side opposite to the welding side of the surge protection component, and including a trigger end adjacent to the bottom side, the trigger end being suitable for triggering the signal output part when the separation component is in the tripping position to output a tripping signal.

[0011] In some embodiments, the surge protector further includes: a plurality of protruding portions arranged on a surface of at least one of the separation member and the moving arm adjacent to the housing.

[0012] In some embodiments, the housing further comprises: a guide portion coupled to the separation component to provide a guide for movement of the separation component.

[0013] In some embodiments, the pivot coupling portion includes a pair of bent pieces bent perpendicular to the pivot coupling section, and the distances between the bent pieces and the extended center line of the fuse component are unequal.

[0014] According to the embodiment of the present invention, the trip assembly and the surge protection component in the surge protector are arranged up and down in the height direction, which fully utilizes the module height space and reduces the width space occupation, thereby achieving both meeting the functional requirements and minimizing the design size, which is conducive to the formation of an ultra-thin surge protector.

[0015] In a second aspect of the present disclosure, a surge protection device is provided, comprising: a base, comprising a plurality of installation positions; and a plurality of surge protectors according to the first aspect above, respectively arranged on the plurality of installation positions in a detachable manner.

[0016] It should be understood that the contents described in this content section are not intended to limit the key features or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0018] Figure 1 A three-dimensional view of a surge protector according to an embodiment of the present disclosure in a normal working state is shown, wherein a portion of a housing of the surge protector is made transparent or omitted;

[0019] Figure 2 A front view of a surge protector according to an embodiment of the present disclosure in a normal working state is shown;

[0020] Figure 3 A perspective view of a surge protector in a tripped state according to an embodiment of the present disclosure is shown;

[0021] Figure 4 A front view showing a surge protector in a tripped state according to an embodiment of the present disclosure; and

[0022] Figure 5 An exploded view of a surge protector according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0023] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0024] It should be noted that the titles of any sections / subsections provided herein are not restrictive. Various embodiments are described throughout this article, and any type of embodiment may be included under any section / subsection. In addition, the embodiments described in any section / subsection may be combined in any manner with any other embodiments described in the same section / subsection and / or different sections / subsections.

[0025] In the description of the embodiments of the present disclosure, the term "including" and similar terms should be understood as open inclusion, that is, "including but not limited to". The term "based on" should be understood as "based at least in part on". The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment". The term "some embodiments" should be understood as "at least some embodiments". Other explicit and implicit definitions may be included below. The terms "first", "second", etc. may refer to different or the same objects. Other explicit and implicit definitions may be included below.

[0026] As mentioned above, a surge protector is a device used to protect electronic equipment from sudden voltage surges or current surges in the power system. It is usually used to prevent damage to equipment caused by overvoltage or current shocks, such as lightning strikes, power grid failures, power switch operations, etc.

[0027] The surge protection component of the surge protector is the core component of the surge protector. It is usually in a non-conductive state when the voltage in the arranged loop is within the normal range. The non-conductive state here can refer to the situation where only a very weak current can be conducted or no current is conducted. The surge protection component can quickly become conductive when the voltage in the loop exceeds its rated value, and guide the overvoltage energy to the ground to protect the equipment from damage. The surge protection component can include a metal oxide varistor (MOV), a transient voltage suppressor (TVS) or a combination thereof.

[0028] The concept of the present disclosure will be described below mainly by taking an MOV type surge protector as an example. It should be understood that the embodiments using other types of surge protection components are also similar and will not be described in detail below.

[0029] MOV type surge protectors usually include normal working state, overvoltage state and tripping state. In normal working state, the varistor is in a high resistance state and will not affect the normal operation of the circuit. The resistance value will remain at a high level within the set voltage range. When the circuit suffers a sudden overvoltage, such as a lightning strike or a power system failure, the voltage rises sharply, and when the line voltage exceeds the threshold voltage (also known as the rated voltage), the surge protector enters the overvoltage state. Once the voltage of the line exceeds the rated voltage of the varistor, the resistance begins to change.

[0030] In this process, the varistor shunts the overvoltage to the ground to prevent the overvoltage from continuing to be transmitted to the protected equipment. The overvoltage state generally lasts for a short time. Once the voltage drops below the set threshold, the resistance value of the varistor will rise again. It should be noted that the varistor-type surge protector may gradually deteriorate after experiencing multiple overvoltage events, resulting in a decrease in its protection ability. In order to be able to use an effective surge protector to protect the circuit, low-temperature solder joints are usually set in the surge protector so that when the surge protection component deteriorates to a certain extent, the low-temperature solder joints can melt and cause the surge protector to trip, thereby prompting the user to replace it in time.

[0031] For circuits with multiple phases, there is a corresponding single-pole surge protector for each phase, and there is also a dedicated surge protector for grounding. For example, for a three-phase circuit, there are usually three single-pole surge protectors and one grounding surge protector. These protectors are usually arranged in parallel in the width direction of the switchgear. With the increasing demand for compact switchgear, the width of the surge protector needs to be as small as possible.

[0032] As mentioned above, the width of a single pole of a surge protector is generally 18mm, and the corresponding low-temperature solder joint release mechanism width is generally around 15mm. However, this width cannot meet the increasing demand of users for compact products. Specifically, there is a demand for ultra-thin surge protector products in the market, and it is usually hoped that the width of a single pole of the surge protector can be 9mm or 12mm, and the corresponding release mechanism width needs to be around 7mm or 10mm. The release mechanism of conventional 18mm products cannot meet the size requirements of such ultra-thin products, and it is necessary to design an ultra-thin low-temperature solder joint release mechanism.

[0033] The embodiments of the present disclosure provide a surge protector and a surge protection device to solve or at least partially solve the above-mentioned problems or other potential problems existing in traditional surge protectors. The surge protection device according to the embodiments of the present disclosure refers to a device that can be arranged in a switchgear such as a switch cabinet and is used to arrange multiple surge protectors. The surge protector here refers to the single-pole surge protector mentioned above. In other words, the surge protection device may have multiple surge protectors corresponding to multiple phases of the circuit. Multiple surge protectors are arranged in parallel on the base of the surge protection device along its width direction W, and are connected to each phase of the circuit to protect the circuit and the electronic equipment therein.

[0034] The surge protector according to the embodiment of the present disclosure can effectively reduce the width of the trip assembly 103 by setting the fuse component 1031 in the trip assembly 103 as a whole on one side of the flat surge protection component 102 (such as MOV, etc.), and its width can be reduced to about 7 mm or 10 mm, thereby effectively reducing the width of the surge protector to about 9 mm or 12 mm, thereby meeting the user's demand for an ultra-thin low-temperature solder joint tripping mechanism.

[0035] The width direction W mentioned in the embodiment of the present disclosure is the arrangement direction of the surge protector in the surge protection device, which generally refers to the minimum dimension direction of the flat surge protection component 102. The height direction H and the length direction (also referred to as the depth direction D) mentioned in the embodiment of the present disclosure are perpendicular to each other, and both are perpendicular to the width direction W. For example, the height direction H can be a direction consistent with the gravity direction (i.e., a vertical direction) when the width direction W is arranged in a horizontal direction, and the length direction is a direction perpendicular to the height direction H and the width direction W.

[0036] The following will combine Figures 1 to 5 The surge protector 100 according to an embodiment of the present disclosure is described. Figure 1 and Figure 2 A stereoscopic view and a front view of a surge protector 100 in a normal working state according to an embodiment of the present disclosure are respectively shown, wherein a portion of a housing 101 of the surge protector 100 is made transparent or omitted in order to display components therein. Figure 3 and Figure 4 A perspective view and a front view respectively show a surge protector 100 in a tripped state according to an embodiment of the present disclosure; Figure 5 An exploded view of a surge protector 100 is shown in accordance with an embodiment of the present disclosure.

[0037] like Figures 1 to 5 As described above, in general, the surge protector 100 according to the embodiment of the present disclosure includes a housing 101, a surge protection component 102 and a trip assembly 103. The housing 101 includes a housing space and a line pin 1011 and a ground pin 1012 extending outward from the housing space. In order to accommodate the flat surge protection component 102, the housing space also has a flat shape. As mentioned above, the flat shape here, for example, refers to a dimension in one direction (for example, the width in the width direction W) that is smaller than the dimensions in the other two directions (for example, the height and length), and the height and length may have dimensions that are less different. The side of the flat surge protection component 102 refers to the side in the height direction H and the depth direction D.

[0038] In some embodiments, the housing 101 may be composed of two parts, which may be respectively referred to as a first half shell 1017 and a second half shell 1018. It should be understood that although referred to as the first half shell 1017 and the second half shell 1018, this does not mean that the two have the same and symmetrical structure, but only means that the two are coupled to form the housing 101. One of the two parts of the housing 101 may also be referred to as a bottom shell, and the other may be referred to as a cover, which is not limited in the present disclosure.

[0039] The first half shell 1017 and the second half shell 1018 are coupled together in the width direction W to form an internal accommodation space, which can make the assembly of the surge protector 100 easier and thus improve the assembly efficiency. The first half shell 1017 and the second half shell 1018 can be coupled together in any appropriate manner, including but not limited to: fastener (such as bolts, screws or rivets, etc.), snap connection, interference fit, bonding, etc.

[0040] The line pin 1011 and the ground pin 1012 extend from the housing 101 so as to be easily connected to each phase of the corresponding line. Here, the line pin 1011 refers to a pin coupled to the line, and the ground pin 1012 is a pin coupled to the ground terminal. The line pin 1011 is coupled to the surge protection component 102 through the trip assembly 103, and the other end of the surge protection component 102 is electrically connected to the ground pin 1012. Under normal working conditions, since the surge protection component 102 has a large internal resistance, it usually does not conduct current or only conducts a very weak current. When the circuit is subjected to a sudden overvoltage, such as a lightning strike or a power system failure, the voltage rises sharply, and the surge protection component 102 will be turned on (i.e., the internal resistance is reduced) when the voltage exceeds a predetermined threshold, thereby effectively grounding the overvoltage to achieve protection of the circuit and the electronic equipment therein.

[0041] That is, the surge protection component 102 is adapted to be a component that is turned on when the voltage of the circuit connected to the line pin 1011 and the ground pin 1012 exceeds a predetermined threshold. For example, in some embodiments, the surge protection component 102 may include a metal oxide varistor (MOV). In some alternative embodiments, the surge protection component 102 may also include a transient voltage suppressor (TVS) or a combination of MOV and TVS. The embodiments of the present disclosure are not limited to this.

[0042] The trip assembly 103 includes a fuse component 1031 and a separation component 1032. The fuse component 1031 according to the embodiment of the present disclosure is arranged in the accommodating space and is located as a whole on one side of the surge protection component 102. That is, the trip assembly 103 and the surge protection component 102 in the surge protector 100 according to the embodiment of the present disclosure are arranged up and down along the height direction H, making full use of the module height space and reducing the occupation of the width space, thereby facilitating the formation of an ultra-thin surge protector 100.

[0043] The fuse component 1031 is coupled to the line pin 1011 via the connecting spring 104, and is electrically connected to the surge protection component 102 through solder, and the solder is suitable for melting when the tripping condition is met, thereby achieving tripping. For example, as the number of overvoltages increases, the surge protection component 102 and its connection parts continue to deteriorate, so that when the tripping condition is met, for example, the temperature at the solder is higher than the melting temperature of the solder, the solder melts, thereby facilitating the fuse component 1031 to be disengaged and achieve tripping.

[0044] In some embodiments, the fuse component 1031 is bent along the extension direction and includes a pivot coupling section 1034, a welding coupling section 1036, and an intermediate section 1037 arranged between the two in the extension direction. The bent structure may be substantially Z-shaped, and the angle between two adjacent sections is greater than 90°, for example, in the range of 120° to 150°.

[0045] The pivot coupling section 1034 is coupled to the connecting spring 104 (also called a pigtail). The other end of the connecting spring 104 is coupled to the line pin 1011. The pivot coupling section 1034 includes a pivot coupling portion 1035. The fuse component 1031 is coupled to the housing 101 via the pivot coupling portion 1035. For example, in some embodiments, the housing 101 may include a pair of pivot coupling grooves 1013 and a pivot shaft 1014. The pair of pivot coupling grooves 1013 are respectively arranged on the first half shell 1017 and the second half shell 1018. The pivot shaft 1014 is coupled to the pivot coupling portion 1035 and both ends are respectively arranged in the pair of pivot coupling grooves 1013 to allow the fuse component 1031 to rotate around the pivot shaft 1014.

[0046] In some embodiments, the pivot coupling portion 1035 may be a pair of bent pieces vertically bent from the main body of the pivot coupling section 1034. A hole aligned with the pivot coupling slot 1013 on the housing 101 in the width direction W is provided on the pair of bent pieces, and the pivot shaft 1014 can pass through the hole on the bent piece and both ends are provided in the pivot slots on the housing 101.

[0047] In some embodiments, the distances between a pair of bent pieces and the extended midline of the fuse component 1031 are not equal. This is set in full consideration of the structure of the two half shells of the housing 101 and in order to reduce the width of the surge protector 100 as much as possible. By setting it in this way, the connection strength between the bent piece and the main body of the pivot coupling part 1035 can be ensured, and the structural interference of the two half shells can be avoided, thereby ensuring reliability and further reducing the width of the surge protector 100.

[0048] The welding coupling section 1036 of the fuse component 1031 is welded to the surge protection component 102 by solder. To facilitate welding, in some embodiments, the surge protector 100 includes a protrusion 1021 protruding from a welding side 1022 of the plurality of sides of the surge protection component 102. Correspondingly, the welding coupling section 1036 includes a welding coupling groove. The welding coupling groove is suitable for the protrusion 1021 to enter and allows at least a portion of the welding coupling section 1036 and the protrusion 1021 to be welded together by solder. The welding coupling groove can be entered by the protrusion 1021 on the conventional surge protection component 102 such as MOV, so that the fuse component 1031 can match most conventional surge protection components, thereby reducing the special design cost of the surge protection component.

[0049] In some embodiments, a pair of side edges of the welding coupling section 1036 in the width direction W and a portion transitioning to the middle section 1037 may be formed with a protruding edge 1040. The protruding edge 1040 can enhance the bending strength between the welding coupling portion and the middle section 1037. On the other hand, it can also facilitate the placement of solder.

[0050] The separation component 1032 is coupled between the fuse component 1031 and the surge protection component 102 through the elastic component 1033. In some embodiments, the elastic component 1033 may be a compression spring or a tension spring. One end of the elastic component 1033 is coupled to the housing 101, and the other end is coupled to the separation component 1032. The separation component 1032 may have a structure that is conducive to the coupling of the elastic component 1033. For example, in some embodiments, the separation component 1032 may include a coupling rod 1044 for the elastic component 1033 (such as a compression spring) to be sleeved thereon, thereby making the structure more stable.

[0051] The elastic force of the elastic component 1033 acts on the fuse component 1031 via the separation component 1032. When the surge protector 100 is in a normal working state, the elastic force cannot push or pull the fuse component 1031 welded on the surge protection component 102. When the tripping condition is met, the solder melts, and the bonding force between the fuse component 1031 and the surge protection component 102 is greatly reduced, so that the elastic force can push or pull the fuse component 1031 to disconnect the electrical connection between the fuse component 1031 and the surge protection component 102, and the separation component 1032 moves to the tripping position under the action of the elastic force of the elastic component 1033. The separation component 1032 can not only separate the fuse component 1031 and the surge protection component 102 to disconnect the electrical connection, but also can play a role in indicating the tripping state of the surge protector 100 in an intuitive and / or remote manner, which will be further explained below.

[0052] In some embodiments, the separation component 1032 further includes a push portion. The push portion may include an inclined push surface 1038 and a raised portion 1039 located at the end of the inclined push surface 1038. The inclined push surface 1038 is suitable for abutting against the middle section 1037 of the fuse component 1031. The elastic force of the elastic component 1033 can act on the middle section 1037 of the fuse component 1031, thereby making it more convenient for the elastic force to be applied to the fuse component 1031, thereby facilitating the fuse component 1031 to rotate and separate from the surge protection component 102. After the separation component 1032 moves to the tripping position, the raised portion 1039 abuts against the fuse component 1031, thereby maintaining a safe distance between the fuse component 1031 and the surge protection component 102 and the protrusion 1021, thereby improving the reliability of the surge protector 100.

[0053] Considering that in some cases the connecting spring 104 may harden with long-term use, thereby affecting the separation of the fuse component 1031 from the surge protection component 102 during the tripping process, in some embodiments, in order to further reduce the force required to push the fuse component 1031 to separate from the surge protection component 102, the pivot coupling groove 1013 on the housing 101 can be set as a waist-shaped groove. The center connection direction of the waist-shaped groove is perpendicular to the welding side 1022, that is, it extends along the height direction H. In this way, when the tripping condition is met and the solder is melted, under the action of the elastic force of the elastic component 1033, the push portion of the separation component 1032 will push the fuse component 1031 to move upward along the waist-shaped groove, and then reverse, thereby reducing the angle required for the fuse component 1031 to separate from the surge protection component 102. For example, in some embodiments, the angle required for the fuse component 1031 to separate from the surge protection component 102 can be reduced from 27° to 18°, thereby facilitating the separation of the fuse component 1031 from the surge protection component 102 during the tripping process.

[0054] In order to enable the separation component 1032 to intuitively indicate the tripping state of the surge protector 100, in some embodiments, the housing 101 may further include an indication window 1015. Correspondingly, the separation component 1032 also includes an indication sheet 1030, which is arranged to be aligned with the indication window 1015 when the separation component 1032 is in the tripping position, so that the user can observe the indication sheet 1030 indicating the tripping of the surge protector 100 from the outside, thereby prompting the user to replace it. In some embodiments, the indication sheet 1030 can be in a more eye-catching color, such as red or orange, to help prompt the user to pay attention.

[0055] In some embodiments, in addition to being able to observe the state of the surge protector 100 on site through the above-mentioned indicator sheet 1030, the surge protection device according to the embodiment of the present disclosure can also realize remote indication of the signal of the surge protector 100 (also known as remote signal triggering). For example, in some embodiments, the trip assembly 103 also includes a movable arm 1041 coupled to the separation component 1032. The movable arm 1041 extends from the separation component 1032 to the bottom side of the surge protection component 102 opposite to the welding side 1022 where the fuse component 1031 is arranged. For example, the movable arm 1041 can be in the shape of a sheet, located on one side of the surge protection component 102 in the width direction W, and extending in the height direction H. The movable arm 1041 includes a trigger end adjacent to the bottom side. The trigger end can trigger the signal output part of the surge protection device when the separation component 1032 is in the tripping position to remotely output the tripping signal.

[0056] In some embodiments, the separation component 1032 may be supported by an insulating material such as plastic. In order to ensure strength and reduce width, the moving arm 1041 may be made of a thin metal sheet with a certain strength. In order to ensure the coupling strength between the separation component 1032 and the moving arm 1041, the position where the moving arm 1041 is coupled to the separation component 1032 may be formed into a fork shape and coupled to the separation component 1032 by riveting.

[0057] Since both the separation component 1032 and the movable arm 1041 will move when a trip occurs, thereby moving from the initial position to the trip position, and the separation component 1032 and the movable arm 1041 have a small distance from the housing 101 in the width direction W, in order to facilitate the sliding of the separation component 1032 and the movable arm 1041, in some embodiments, the surge protector 100 also includes a plurality of protrusions 1042 arranged on the surface of at least one of the separation component 1032 and the movable arm 1041 adjacent to the housing 101. The protrusions 1042 can be, for example, conical or truncated cone-shaped. By providing the protrusions 1042, the surface friction between the separation component 1032 and the movable arm 1041 and the housing 101 can be adjusted to point friction, which can greatly reduce the friction force and make the sliding of the separation component 1032 and the movable arm 1041 smoother.

[0058] In some embodiments, in order to make the sliding of the separation component 1032 smoother and more reliable, a guide portion 1016 coupled to the separation component 1032 is further provided on the housing 101 (for example, on the first half shell 1017). For example, the guide portion 1016 can be a convex rib extending from the first half shell 1017 to the internal space, and the separation component 1032 has a corresponding groove or step structure. In some alternative embodiments, the guide portion 1016 can also be a groove or step structure formed on the housing 101, and the separation component 1032 has a corresponding convex rib. In this way, the guide portion 1016 can provide guidance for the movement of the separation component 1032, thereby making the movement of the separation component 1032 smoother and more reliable.

[0059] The above descriptions of various implementations of the present disclosure are exemplary, non-exhaustive, and not limited to the disclosed implementations. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described implementations. The selection of terms used herein is intended to best explain the principles of the implementations, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the various implementations disclosed herein.

Claims

1. A surge protector, comprising: A housing (101) comprising a line pin (1011) and a ground pin (1012) to facilitate coupling the surge protector to a protected circuit; A surge protection component (102) is accommodated in the housing (101) and coupled to the ground pin (1012) so as to be turned on when the voltage of the circuit exceeds a predetermined threshold, wherein the width of the surge protection component (102) is smaller than the height and length so as to be flat; as well as The trip assembly (103) comprises: a fuse component (1031) arranged in the housing (101) and positioned as a whole on one side of the surge protection component (102) in the height direction (H), the fuse component (1031) being coupled to the line pin (1011) and electrically connected to the surge protection component (102) via solder, the solder being suitable for melting when a tripping condition is met; as well as A separation component (1032) is coupled between the fuse component (1031) and the surge protection component (102) via an elastic component (1033), and is adapted to move to a tripping position under the action of the elastic force of the elastic component (1033) when the solder melts, thereby disconnecting the electrical connection between the fuse component (1031) and the surge protection component (102).

2. The surge protector according to claim 1, further comprising: A protrusion (1021) protrudes from a welding side edge (1022) of the surge protection component (102) located on one side in the height direction (H) so as to be suitable for coupling with the fuse component (1031).

3. The surge protector according to claim 2, wherein the fuse component (1031) comprises: A pivot coupling section (1034) coupled to the line pin (1011) via the connecting spring (104), and comprising a pivot coupling portion (1035), wherein the fuse component (1031) is coupled to the housing (101) via the pivot coupling portion (1035); a welding coupling section (1036) comprising a welding groove adapted for the protrusion (1021) to enter and allowing at least a portion of the welding coupling section (1036) and the protrusion (1021) to be welded together by the solder; and The middle section (1037) is located between the pivot coupling section (1034) and the welding coupling section (1036) in the extension direction of the fuse component (1031), and forms a non-zero angle with the pivot coupling section (1034) and the welding coupling section (1036) respectively.

4. The surge protector according to claim 3, wherein the housing (101) comprises: A first half shell (1017) and a second half shell (1018) are coupled together along a width direction (W) of the housing (101); a pair of pivot coupling grooves (1013), respectively arranged on the first half shell (1017) and the second half shell (1018); as well as A pivot shaft (1014) is coupled to the pivot coupling portion (1035) and ends of the pivot shaft (1014) are respectively arranged in the pair of pivot coupling grooves (1013) to allow the fuse component (1031) to rotate around the pivot shaft (1014).

5. The surge protector according to claim 4, wherein the pivot coupling groove (1013) is a waist-shaped groove, and the center connection direction of the waist-shaped groove is perpendicular to the welding side.

6. The surge protector according to claim 4 or 5, wherein the separation component (1032) comprises: The push portion comprises an inclined push surface (1038) and a raised portion (1039) located at the end of the inclined push surface (1038), wherein the inclined push surface (1038) is suitable for abutting against the middle section (1037) and pushing the middle section (1037) to rotate the fuse component (1031) when the solder is melted, so that after the separation component (1032) moves to the tripping position, the raised portion (1039) abuts against the fuse component (1031).

7. The surge protector according to claim 6, wherein the housing (101) further comprises an indication window (1015), and The separation component (1032) further comprises an indication sheet (1030), and the indication sheet (1030) is arranged to be aligned with the indication window (1015) when the separation component (1032) is in the tripping position.

8. The surge protector according to claim 6, wherein the trip assembly (103) further comprises: A movable arm (1041) is coupled to the separation component (1032) and extends from the separation component (1032) along the height direction (H) to a bottom side opposite to the welding side of the surge protection component (102), and includes a trigger end adjacent to the bottom side, wherein the trigger end is suitable for triggering a signal output portion to output a trip signal when the separation component (1032) is in the tripping position.

9. The surge protector according to claim 8, further comprising: A plurality of protruding portions (1042) are arranged on a surface of at least one of the separation member (1032) and the moving arm (1041) adjacent to the housing (101).

10. The surge protector according to claim 6, wherein the housing (101) further comprises: A guide portion (1016) is coupled to the separation component (1032) to provide guidance for the movement of the separation component (1032).

11. A surge protector according to any one of claims 3 to 5, wherein the pivot coupling portion (1035) comprises a pair of bent pieces bent perpendicular to the pivot coupling section (1034), and the distances between the bent pieces and the extended center line of the fuse component (1031) are unequal.

12. A surge protection device, comprising: A base, including a plurality of mounting positions; as well as A plurality of surge protectors according to any one of claims 1 to 11 are respectively arranged on the plurality of installation positions in a detachable manner.

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