Surge protection device and surge protection device assembly

Abstract

Embodiments of the present disclosure provide a surge protection device and a surge protection device assembly. The surge protection device includes a base including a pair of terminal portions arranged at two ends of the base in a length direction, respectively, and a mounting slot arranged between the pair of terminal portions; a line assembly; a surge module removably inserted into the mounting slot in a plug-in direction, the surge module including a limiting portion; and a locking assembly including a pair of module locking clips coupled to the pair of terminal portions, respectively, the pair of module locking clips being operated to slide in the length direction to lock and unlock the surge module with respect to the base, and wherein each module locking clip of the pair of module locking clips includes a pair of limiting walls arranged at two ends of a body of the module locking clip in a thickness direction, respectively, and extending in the length direction, the pair of limiting walls being adapted to be clamped at two ends of the pair of terminal portions in the thickness direction. Thus, the stability of the surge protection device can be improved.

Description

Technical Field

[0001] The exemplary embodiments disclosed herein relate generally to the field of electrical equipment, and particularly to surge protection devices and surge protection assemblies. Background Technology

[0002] A surge is a sudden, short-duration (microsecond to millisecond) high-voltage, high-current phenomenon that occurs in a power grid. Common causes include lightning strikes, power equipment switching operations, and power grid faults. Surge protectors can quickly conduct and conduct excess surge current to the ground when the voltage exceeds a safe threshold, thereby reducing the risk of equipment damage due to overvoltage, extending equipment life, and reducing failure losses. Utility Model Content

[0003] In a first aspect of this disclosure, a surge protection device is provided. The surge protection device includes: a base, comprising: a pair of wiring portions disposed at opposite ends of the base along a length direction; and a mounting groove disposed between the pair of wiring portions; a wiring assembly disposed within the base and including a pair of terminals disposed within the pair of wiring portions; a surge module removably inserted into the mounting groove along an insertion / removal direction and electrically connected to the pair of terminals, the surge module including a limiting portion; and a locking assembly including a pair of module locking clips coupled to the pair of wiring portions, the pair of module locking clips being operable to slide along a length direction to lock and unlock the surge module relative to the base, and wherein each of the pair of module locking clips includes a pair of limiting walls disposed at opposite ends of the body of the module locking clip in a thickness direction and extending along a length direction, the pair of limiting walls being adapted to engage with the opposite ends of the pair of wiring portions in the thickness direction.

[0004] In some embodiments, the surge module includes a metal oxide varistor surge module or a gas discharge tube surge module.

[0005] In some embodiments, a pair of module locking clips are adapted to slide between a locked position and an unlocked position. In the locked position, the module locking clips contact a limiting portion to prevent the surge module from being inserted into and removed from the mounting slot in the insertion / removal direction. In the unlocked position, the module locking clips leave the limiting portion to allow the surge module to be inserted into and removed from the mounting slot in the insertion / removal direction.

[0006] In some embodiments, the base includes: at least one mounting hole, each mounting hole including an unlocking end and a locking end arranged in a length direction, and wherein each of a pair of module locking clips includes: a body; and at least one latch extending from the body toward the wiring portion and adapted to be coupled within the at least one mounting hole, the at least one latch being operated to slide between the unlocking end and the locking end in a length direction to allow the module locking clip to slide between an unlocked position and a locked position.

[0007] In some embodiments, the cross-sectional shapes of the unlocking end and the locking end respectively include a straight segment located on a first side along the thickness direction and an arc segment located on a second side along the thickness direction, and each of at least one locking block includes a hook arranged at its free end, the hook being adapted to be inserted into a mounting hole through the unlocking end, and the cross-sectional shape of the hook being adapted to the cross-sectional shape of the unlocking end.

[0008] In some embodiments, the base further includes: a fixing plate disposed near the surge module and extending a predetermined distance along the length toward the wiring portion, and wherein the module locking clip further includes: a slot disposed along the length at one end adjacent to the surge module, the slot being adapted to allow the fixing plate to be inserted during the sliding of the module locking clip toward the locking position.

[0009] In some embodiments, the base further includes a pair of limiting grooves, which are respectively arranged at both ends of the wiring portion in the thickness direction and extend along the length direction, and wherein a pair of limiting walls of the module locking clip are adapted to engage with the pair of limiting grooves.

[0010] In some embodiments, the base includes: a pair of half-shells joined together in a width direction perpendicular to the length direction to form the base, and wherein at least one mounting hole includes a pair of mounting holes, the pair of mounting holes being formed on the pair of half-shells respectively.

[0011] In some embodiments, the module locking clip further includes a through hole formed through the body and adapted to align with the operating hole of the wiring portion during the locking position of the module locking clip.

[0012] In some embodiments, the surge protection device further includes a cap disposed within a through-hole and adapted to at least partially close the through-hole.

[0013] In some embodiments, the line assembly further includes a communication module disposed within the base and coupled to the surge module to send an action signal to an external device at least during a surge.

[0014] According to some embodiments of the surge protection device disclosed herein, locking components are respectively provided on a pair of wiring portions of the surge protection device housing. The module locking clip of the locking component can slide between a locked position and an unlocked position along its length. In the locked position, the module locking clip contacts a limiting portion to prevent the surge module from being inserted into and removed from the mounting slot in the insertion / removal direction. In the unlocked position, the module locking clip leaves the limiting portion to allow the surge module to be inserted into and removed from the mounting slot in the insertion / removal direction. In this way, the module locking clip can fix the surge module, improving the stability of the surge module's electrical connection with the line assembly within the mounting slot of the base, and reducing the risk of the surge module detaching from the mounting slot under the influence of electrodynamic forces. The module locking clip clamps both ends of the base along its thickness direction through a pair of limiting walls, allowing the module locking clip to slide stably along its length. Furthermore, for a base formed by splicing a pair of half-shells, the module locking clip also provides reinforcement, reducing the likelihood of cracking at the joint of the half-shells due to electrodynamic forces during a surge, thus improving the operational stability of the surge protection device.

[0015] In a second aspect of this disclosure, a surge protector assembly is provided. The surge protector assembly includes at least one surge protection device provided according to a first aspect of this disclosure.

[0016] In some embodiments, the surge protector assembly includes: a plurality of surge protectors, the plurality of surge protectors including: at least one MOV surge protector based on a metal oxide varistor surge module; and a GDT surge protector based on a gas discharge tube surge module; and a busbar arranged at one end of the plurality of surge protectors along the length direction (L) and electrically connected to the corresponding terminals of the plurality of surge protectors respectively.

[0017] It should be understood that the content described in this content section is not intended to limit the key or essential features of the embodiments of this disclosure, nor is it intended to restrict the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0018] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein: Figure 1 A schematic diagram of the overall structure of a surge protector assembly according to some embodiments of the present disclosure is shown; Figure 2 An exploded schematic diagram of a surge protector assembly according to some embodiments of the present disclosure is shown; Figure 3 A schematic diagram of a GDT surge protection device according to some embodiments of the present disclosure is shown; Figure 4 An exploded view of the GDT surge module and base according to some embodiments of the present disclosure is shown; Figure 5 A schematic diagram of an MOV surge protection device according to some embodiments of the present disclosure is shown; Figure 6 An exploded view of an MOV surge module and its base according to some embodiments of the present disclosure is shown; Figure 7 An exploded view of the base of a surge protection device according to some embodiments of the present disclosure is shown; Figure 8 An exploded view of the base and module locking clip according to some embodiments of the present disclosure is shown; Figure 9 A schematic diagram of the structure of a module locking clip according to some embodiments of the present disclosure is shown; and Figure 10 A schematic diagram of the wiring portion of a base according to some embodiments of the present disclosure is shown. Detailed Implementation

[0019] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0020] It should be noted that the headings of any section / subsection provided herein are not limiting. Various embodiments are described throughout this document, and embodiments of any type may be included under any section / subsection. Furthermore, embodiments described in any section / subsection may be combined in any way with any other embodiments described in the same section / subsection and / or different sections / subsections.

[0021] In the description of embodiments of this disclosure, the term "comprising" and similar terms should be understood as open-ended inclusion, i.e., "including but not limited to". The term "based on" should be understood as "at least partially based 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 also be included below. The terms "first", "second", etc., may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0022] As briefly mentioned earlier, surge protectors include surge modules, which are typically assembled from nonlinear components such as metal oxide varistors (MOVs) and gas discharge tubes (GDTs). These nonlinear components operate at high resistance under normal voltage, without affecting circuit operation; however, when the voltage suddenly rises above their "operation threshold," the component instantly switches to a low-resistance state, rapidly discharging the surge current to the grounding system. During surge module operation, the high current electrodynamic force within the surge protector can easily cause the surge module to separate from its base; furthermore, the electrodynamic force may also act on the surge protector's base, making it prone to cracking at structural weak points such as joints. Moreover, in multi-phase power supply surge protection scenarios, the wiring of traditional surge protectors is complex, which additionally increases the installation cost of the surge protection device.

[0023] This disclosure provides a surge protection device and surge protector assembly to solve, or at least partially solve, the aforementioned problems or other potential problems existing in the conventional art. According to some embodiments of this disclosure, the surge protection device includes locking components on a pair of terminals on the surge protection device housing. The module locking clips of the locking components can slide between a locked position and an unlocked position along their length. In the locked position, the module locking clips contact a limiting portion to prevent the surge module from being inserted into and removed from the mounting slot in the insertion / removal direction. In the unlocked position, the module locking clips move away from the limiting portion to allow the surge module to be inserted into and removed from the mounting slot in the insertion / removal direction. In this manner, the module locking clips can secure the surge module, improving the stability of the surge module's electrical connection with the wiring assembly within the mounting slot of the base and reducing the risk of the surge module detaching from the mounting slot under the influence of electrodynamic forces or other factors. The module locking clip holds the two ends of the base along the thickness direction through a pair of limiting walls, so that the module locking clip can slide stably along the length direction. For the base formed by splicing a pair of half shells, the module locking clip can also play a reinforcing role, thereby reducing the possibility of cracking at the joint of the pair of half shells due to the electrodynamics during the surge, and improving the stability of the surge protection device.

[0024] Figure 1 A schematic diagram of the overall structure of a surge protector assembly according to some embodiments of the present disclosure is shown. Figure 2 An exploded schematic diagram of a surge protector assembly according to some embodiments of the present disclosure is shown. Figure 1 and Figure 2As shown, depending on the actual installation scenario, the surge protector assembly 100 may include at least one surge protection device. One end of the surge protection device (also known as the input terminal) is connected to the power supply side of the line, and the other end (also known as the output terminal) is directly or indirectly grounded. If an abnormal current such as a surge occurs in the line, the surge module of the surge protection device is turned on and guides the abnormal current in the line to the ground wire to protect the electrical equipment connected in the line.

[0025] In some embodiments, the surge protection device may include a surge protection device based on a metal oxide varistor (MOV) surge module (hereinafter also referred to as MOV surge protection device 110) or a surge protection device based on a gas discharge tube (GDT) surge module (hereinafter also referred to as GDT surge protection device 120).

[0026] In some embodiments, surge protector assembly 100 may include an MOV surge protector 110 (also referred to as an 1P product), the input of which is connected to the power supply side (e.g., to a live phase wire of the power supply side), and the output is grounded.

[0027] In some other embodiments, the surge protector assembly 100 may further include two or more MOV surge protectors 110 (correspondingly, these surge protector assemblies 100 are also referred to as 2P, 3P, or 4P products). In these surge protector assemblies 100, multiple MOV surge protectors 110 are arranged side by side, and multiple input terminals of the multiple MOV surge protectors 110 are respectively connected to the multi-phase live wires and / or neutral wires in the line to release the surge current in the corresponding phase line.

[0028] In some embodiments, the surge protector assembly 100 may further include a busbar 7, which is connected to the output terminals of multiple surge protectors and to a ground wire. This allows multiple surge protectors to be grounded simultaneously, simplifying the internal wiring of the surge protector assembly 100. The busbar 7 also provides appropriate connection force between the multiple surge protectors to prevent misalignment of the multiple connected surge protectors under electromagnetic forces.

[0029] Depending on the specific requirements of the installation scenario, the surge protector assembly 100 can also provide graded protection in the line. For example, the GDT surge protector 120 can be connected in series with the MOV surge protector 110, where the GDT surge protector 120 serves as primary surge protection and the MOV serves as secondary surge protection, thus forming a complementary multi-level protection system. In some embodiments, the surge protector assembly 100 includes one MOV surge protector 110 and one GDT surge protector 120 (also referred to as a 1P-N product). The MOV surge protector 110 and the GDT surge protector 120 are connected in series, and the GDT surge protector 120 is arranged on the side of the MOV surge protector 110 closer to ground. In some embodiments, the input terminal of the MOV surge protector 110 can be connected to the live wire of the power line, and the output terminal of the MOV surge protector 110 is connected to the input terminal of the GDT surge protector via the busbar 7. Surge current can be directed to ground via the metal oxide varistor (MOV) surge module 31 and the gas discharge tube (GDT) surge module 32 in sequence. In some embodiments, the neutral wire of the power line can be connected to the output of the MOV surge protection device 110. The surge current in the neutral wire can be directed to ground via the GDT surge protection device 120.

[0030] In some embodiments, the surge protector assembly 100 includes three MOV surge protectors 110 and one GDT surge protector 120 (also referred to as a 3P-N product). The input terminals of the three MOV surge protectors 110 are coupled to the three-phase live wires, and the output terminals of the three MOV surge protectors 110 are coupled to the input terminal of the GDT surge protector 120 via a busbar 7. The output terminal of the GDT surge protector 120 is coupled to the ground wire. The three MOV surge protectors 110 and one GDT surge protector 120 are arranged side-by-side along the length direction L, and the neutral wire is connected to the output terminal of the middle MOV surge protector 110 located along the length direction L. That is, the neutral wire can be electrically connected to the input terminal of the GDT surge protector via the busbar 7.

[0031] The surge protection device generally includes a base 1, a circuit assembly arranged inside the base 1, a surge module coupled to the base 1, and a locking assembly. As described above, depending on the surge module, the surge protector can be either a GDT surge protector 120 or an MOV surge protector 110.

[0032] Figure 3 A schematic diagram of a GDT surge protection device according to some embodiments of the present disclosure is shown. Figure 4 An exploded view of a GDT surge module and its base according to some embodiments of this disclosure is shown. Figure 3 and Figure 4As shown, in the GDT surge protection device 120, the surge module is a GDT surge module 32 based on a gas discharge tube (GDT). The GDT surge module 32 is installed in the mounting slot 12 of the base 1 in a plug-in manner.

[0033] Figure 5 A schematic diagram of an MOV surge protection device according to some embodiments of the present disclosure is shown. Figure 6 An exploded view of an MOV surge module and its base according to some embodiments of this disclosure is shown. Figure 5 and Figure 6 As shown, in the MOV surge protection device 110, the surge module is an MOV surge module 31 based on a metal oxide varistor (MOV). The MOV surge module 31 can also be installed in the mounting slot 12 of the base 1 in a plug-in manner. If the surge module (MOV surge module 31 or GDT surge module 32) fails, the user can replace the surge module individually, thereby reducing maintenance costs.

[0034] The following section will take the GDT surge protection device 120 as an example to provide a more detailed explanation of surge protection devices.

[0035] Figure 7 An exploded view of the base of a surge protection device according to some embodiments of the present disclosure is shown. Figure 7 As shown, the base 1 includes a pair of wiring portions 11 arranged along the length direction L and a mounting groove 12 arranged between the pair of wiring portions 11. The surge module can be inserted into or removed from the mounting groove 12 along the insertion / removal direction I. The surge protection device also includes a wiring assembly. The wiring assembly includes a pair of terminals 2. The pair of terminals 2 are respectively arranged within the pair of wiring portions 11. The wiring portions 11 are provided with wiring holes 18, through which cables can pass and be electrically connected to the corresponding terminals 2. The wiring portions 11 are also provided with operating holes 14, through which the user can operate the terminals 2 to connect and fix the terminals 2 to the cables. The input and output terminals of the surge protection device mentioned above correspond to the pair of terminals 2 respectively. The surge module includes a pair of contacts 34. When the surge module is inserted into the mounting groove 12 of the base 1, the contacts 34 of the surge module are electrically connected to the corresponding terminals 2 respectively.

[0036] Return to reference Figures 3 to 6The locking assembly includes a pair of module locking clips 4 for locking the surge module. The pair of module locking clips 4 are respectively arranged on a pair of wiring portions 11, and each module locking clip 4 is slidably connected to the corresponding wiring portion 11 along the length direction L. The module locking clips 4 can slide between a locked position and an unlocked position along the length direction L. Correspondingly, the surge module includes a pair of limiting portions 33 formed on both side walls along the length direction L. The limiting portions 33 protrude from the main body side wall of the surge module along the length direction L. If the module locking clips 4 are in the locked position, the module locking clips 4 can contact the limiting portions 33 and prevent the surge module from being inserted into or removed from the mounting slot 12 in the insertion direction. If the module locking clips 4 are in the unlocked position, the module locking clips 4 are spaced apart from the limiting portions 33 of the surge module by a predetermined distance, and the module locking clips 4 release the lock on the surge module, allowing the surge module to be inserted into or removed from the mounting slot 12 in the insertion / removal direction I. The cooperation between the module locking clip 4 and the limiting part 33 improves the stability of the surge module arranged in the mounting slot 12, reduces the risk of the surge module detaching from the mounting slot 12 due to the electrodynamic force during the surge, and improves the stability of the surge module operation.

[0037] The module locking clip 4 also includes a pair of limiting walls 45, respectively arranged at both ends of the body in the thickness direction D, and each limiting wall 45 extends along the length direction L. The pair of limiting walls 45 are adapted to partially clamp the wiring portion 11 of the base 1 on both sides along the thickness direction D, so that the module locking clip 4 can slide stably relative to the base 1 along the length direction L, thereby improving the smoothness of the sliding of the module locking clip 4 between the unlocked and locked positions. In addition, the module locking clip 4 can also reinforce the base 1 formed by splicing a pair of half-shells 17, thereby reducing the possibility of cracking at the joint of the pair of half-shells 17 due to electrodynamic forces during surges, and improving the stability of the surge protection device.

[0038] In some embodiments, the base 1 further includes a pair of limiting grooves 16, respectively arranged at both ends of the wiring portion 11 in the thickness direction D and extending along the length direction L. When the module locking clip 4 is coupled to the wiring portion 11, the pair of limiting grooves 16 are respectively clamped within a pair of limiting walls 45. The cooperation between the limiting grooves 16 and the limiting walls 45 can further guide the sliding direction (i.e., the length direction L) of the module locking clip 4, ensuring that the module locking clip 4 can slide smoothly along the length direction L, while preventing the module locking clip 4 from shifting in the thickness direction D or detaching from the wiring portion 11. At the same time, the opening of the limiting grooves 16 also provides space for splicing multiple surge protection devices, allowing adjacent surge protection devices to remain close together. This, in turn, helps to improve the overall compactness of the surge protector assembly.

[0039] In some embodiments, each module locking clip 4 has a through hole 42 formed therethrough. The through hole 42 extends through the module locking clip 4 and is adapted to align with the operation hole 14 of the wiring portion 11 when the module locking clip 4 is in the locked position, thereby allowing the user to operate the terminal 2 in the operation hole 14 through the through hole 42. The surge protection device also includes a pair of covers 5, which respectively fill the through holes 42 of the pair of module locking clips 4 and at least partially close the through holes 42. The covers 5 can provide appropriate dust and water resistance to the through holes 42, thereby improving the stability of the surge protection device operation. In addition, for multiple surge protection devices connected via the busbar 7, the covers 5 can close the less frequently used through holes 42 as an identification, thereby facilitating the user to wire at the input or output terminals of multiple surge protection devices.

[0040] Figure 8 An exploded view of the base and module locking clip according to some embodiments of the present disclosure is shown. Figure 9 A schematic diagram of the structure of a module locking clip according to some embodiments of the present disclosure is shown. For example... Figure 8 and Figure 9 As shown, in some embodiments, the base 1 includes at least one mounting hole 13, which includes an unlocking end and a locking end arranged along the length direction L. The module locking clip 4 includes a body and a latch 41 arranged on the side of the body facing the wiring portion 11. The latch 41 is adapted to protrude toward the wiring portion 11 and at least partially embed into the mounting hole 13. The latch 41 can slide along the length direction L between the unlocking end and the locking end within the mounting hole 13, thereby allowing the module locking clip 4 to move between the unlocked and locked positions.

[0041] Figure 10 A schematic diagram of the wiring portion of a base according to some embodiments of the present disclosure is shown. For example... Figure 10 As shown, in some embodiments, the cross-sections of the unlocking and locking ends of the mounting hole 13 may include a straight segment 131 arranged on a first side in the thickness direction D and an arc segment 132 arranged in the thickness direction D relative to a second side. The straight segment 131 and the arc segment 132 make the cross-sections of the unlocking and locking ends approximately semi-circular or arc-shaped. The latch 41 of the module locking clip 4 includes a hook 43 arranged at the free end away from the body. The cross-sectional shape of the latch is adapted to the cross-sectional shape of the unlocking end, thereby allowing the hook 43 to be inserted into the mounting hole 13 at the unlocking end. In some embodiments, the radius of curvature of the arc segment 132 at the unlocking end is greater than the radius of curvature of the arc segment 132 at the locking end. In this case, when the latch slides from the unlocking end of the mounting hole 13 to the locking end of the mounting hole 13, the latch is engaged by the edge of the locking end, and the latch 41 is fixed within the mounting hole 13, thereby improving the stability of the connection between the module locking clip 4 and the base 1.

[0042] In some embodiments, when the hook 43 is inserted into the mounting hole 13 from the unlocking end, the locking block 41 slides along the length direction L to the locking end, during which the locking block 41 contacts the hole wall of the mounting hole 13 and undergoes elastic deformation. This results in a tight engagement between the locking block 41 and the locking end of the mounting hole 13, further enhancing the stability of the module locking clip 4 in the locked position. To facilitate user operation of the module locking clip 4 in switching between the locked and unlocked positions, the body of the module locking clip 4 may also be provided with protrusions or grooves. Protrusions or grooves can increase the friction between the user's fingers and the module locking clip 4, allowing the user to more easily push the module locking clip 4 to slide.

[0043] Return to reference Figure 8 and Figure 9 In some embodiments, the base 1 further includes a fixing plate 15, which is arranged close to the surge module and extends a predetermined distance along the length direction L toward the wiring portion 11. The module locking clip 4 also includes a slot 44, which is formed at one end of the surge module and extends along the length direction L. When the module locking clip 4 slides toward the locking position, the fixing plate 15 gradually inserts into the slot 44. The cooperation between the fixing plate 15 and the slot 44 can further limit the displacement of the module locking clip 4 in the thickness direction D and the width direction, improving the stability of the module locking clip 4 in locking the surge module in the locking position.

[0044] In some embodiments, the thickness of the fixing plate 15 is adapted to the width of the slot 44 to ensure that the fixing plate 15 can be tightly inserted into the slot 44 and to avoid loosening. The extension length of the fixing plate 15 can be determined according to the sliding distance of the module locking clip 4, so that when the module locking clip 4 reaches the locking position, the fixing plate 15 is just fully inserted into the slot 44, thereby providing the fixing plate 15 with a supporting force for the module locking clip 4 in the insertion and removal direction I.

[0045] In some embodiments, the base 1 is formed by splicing a pair of half-shells 17. The base 1 has a pair of mounting holes 13, which are respectively formed on the pair of half-shells 17. This split-type base 1 structure facilitates the molding of the base 1 and also facilitates the installation and arrangement of circuit components inside the base 1. After the pair of half-shells 17 are assembled, the pair of locking blocks 41 of the module locking clip 4 limit the positioning of the pair of mounting holes 13, allowing the pair of half-shells 17 to be more stably spliced ​​together, thereby improving the overall strength of the base 1.

[0046] Return to reference Figure 7In some embodiments, the circuit assembly also includes a communication module 6, which is disposed within the base 1 and coupled to the surge module to send an action signal to an external device at least during a surge. The communication module 6 can communicate with the external device via wired or wireless communication. When the surge module activates, the communication module 6 promptly sends the surge signal to the external device to monitor the number, duration, and magnitude of the surge.

[0047] In some embodiments, the communication module 6 can also monitor other parameters of the surge module, such as temperature, and send these parameters to external devices. If abnormal parameters are detected, the communication module 6 can issue an alarm signal to remind the user to replace the surge module in a timely manner to prevent the surge protection device from failing.

[0048] Various implementations of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed implementations. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described implementations. The terminology used herein is chosen to best explain the principles, practical applications, or improvements to technology in the market, or to enable others skilled in the art to understand the various implementations disclosed herein.

Claims

1. A surge protection device, characterized in that, include: The base (1) includes: A pair of wiring portions (11) are respectively arranged at both ends of the base (1) along the length direction (L); and Mounting slot (12) is arranged between the pair of wiring portions (11); The wiring assembly is arranged in the base (1) and includes a pair of terminals (2) respectively arranged in the pair of wiring portions (11). A surge module is removably inserted into the mounting slot (12) in the insertion / removal direction (I) and electrically connected to the pair of terminals (2). The surge module includes a limiting part (33); and The locking assembly includes a pair of module locking clips (4) respectively coupled to the pair of wiring portions (11), the pair of module locking clips (4) being operated to slide along the length direction (L) to lock and unlock the surge module relative to the base (1), and Each of the pair of module locking clips (4) includes a pair of limiting walls (45) respectively arranged at both ends of the body of the module locking clip (4) in the thickness direction (D) and extending along the length direction (L), the pair of limiting walls (45) being adapted to engage with the pair of wiring portions (11) at both ends in the thickness direction (D).

2. The surge protection device according to claim 1, characterized in that, The surge module includes a metal oxide varistor (MOV) surge module or a gas discharge tube (GDT) surge module.

3. The surge protection device according to claim 1 or 2, characterized in that, The pair of module locking clips (4) are adapted to slide between a locked position and an unlocked position. In the locked position, the module locking clips (4) contact the limiting part (33) to prevent the surge module from being inserted into and removed from the mounting slot (12) in the insertion / removal direction (I). In the unlocked position, the module locking clips (4) leave the limiting part (33) to allow the surge module to be inserted into and removed from the mounting slot (12) in the insertion / removal direction (I).

4. The surge protection device according to claim 3, characterized in that, The base (1) includes at least one mounting hole (13), each mounting hole (13) including an unlocking end and a locking end arranged along the length direction (L), and Each of the pair of module locking clips (4) includes: The subject; and At least one locking block (41) extends from the body toward the wiring portion (11) and is adapted to be coupled within the at least one mounting hole (13). The at least one locking block (41) is operated to slide along the length direction (L) between the unlocking end and the locking end so that the module locking clip (4) slides between the unlocking position and the locking position.

5. The surge protection device according to claim 4, characterized in that, The cross-sectional shapes of the unlocking end and the locking end respectively include a straight segment (131) located on a first side along the thickness direction (D) and an arc segment (132) located on a second side along the thickness direction (D), and Each of the at least one latch (41) includes a latch (43) disposed at a free end, the latch (43) being adapted to be inserted into the mounting hole (13) through the unlocking end, and the cross-sectional shape of the latch (43) being adapted to the cross-sectional shape of the unlocking end.

6. The surge protection device according to claim 4, characterized in that, The base (1) further includes: a fixing plate (15) arranged close to the surge module and extending a predetermined distance along the length direction (L) toward the wiring portion (11), and The module locking clip (4) further includes a slot (44) arranged in the length direction (L) adjacent to one end of the surge module, the slot (44) being adapted to allow the fixing plate (15) to be inserted during the sliding of the module locking clip (4) to the locking position.

7. The surge protection device according to any one of claims 4-6, characterized in that, The base (1) further includes a pair of limiting grooves (16), which are respectively arranged at both ends of the wiring portion (11) in the thickness direction (D) and extend along the length direction (L). The pair of limiting walls (45) of the module locking clip (4) are adapted to engage in the pair of limiting grooves (16).

8. The surge protection device according to claim 7, characterized in that, The base (1) includes: A pair of half-shells (17) are joined together along the width direction perpendicular to the length direction (L) to form the base (1), and The at least one mounting hole (13) therein includes a pair of mounting holes (13), which are respectively formed on the pair of half shells (17).

9. The surge protection device according to any one of claims 4-6, characterized in that, The module locking clip (4) also includes: A through hole (42) is formed through the body and is adapted to align with the operating hole (14) of the wiring portion (11) during the locking position of the module locking clip (4).

10. The surge protection device according to claim 9, characterized in that, The surge protection device also includes: A cap (5) is disposed within the through hole (42) and is adapted to at least partially close the through hole (42).

11. The surge protection device according to any one of claims 1, 2, 4-6, 8 and 10, characterized in that, The circuit assembly also includes: A communication module (6) is disposed within the base (1) and coupled to the surge module to send an action signal to an external device at least during a surge.

12. A surge protector assembly, characterized in that, include: At least one surge protection device according to any one of claims 1-11.

13. The surge protector assembly according to claim 12, characterized in that, The surge protector assembly includes: The plurality of surge protection devices include: At least one MOV surge protection device (110) based on a metal oxide varistor surge protection module; and A GDT surge protection device (120) based on a gas discharge tube surge protection module; and A busbar is arranged at one end of the multiple surge protection devices along the length direction (L) and is electrically connected to the corresponding terminals (2) of the multiple surge protection devices.

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