Surge protector module head suitable for full-mode connection, surge protector and comprehensive protection box

Abstract

The utility model relates to the field of surge protectors, in particular to a surge protector module head suitable for full-mode connection, a surge protector and a comprehensive protection box. The utility model provides a surge protector module head suitable for full-mode connection, which comprises a shell and two conducting strips, the two conducting strips can be connected with a thermal tripping assembly through a lightning protection element located in the shell, a channel part is arranged in the shell, and the shell is provided with a plurality of through holes. And a conductive piece of which the two ends are respectively connected with the two conductive sheets can be arranged in the channel part.

Description

Technical Field

[0001] This utility model relates to the field of surge protectors, and in particular to a surge protector module head, surge protector and integrated protection box suitable for full-mode connection. Background Technology

[0002] Surge protectors have common-mode, differential-mode, and full-mode connection methods. Full-mode connection requires at least three surge protectors connected in a specific wiring configuration. For existing multi-gang surge protectors, each surge protection element can be connected to one protection circuit through an external port. Since their internal protection circuits are relatively independent, when using a multi-gang surge protector to achieve full-mode protection for an AC circuit, it is often necessary to connect the two ends of one surge protection element to the input ports of the other two surge protectors using external jumpers. The disadvantage of this method is that multi-gang surge protectors are often configured with each circuit in the same direction, meaning multiple input ports are located on one side of the surge protector, while multiple output ports are located on the other side. Connecting one output port to one input port requires the jumper wires to be exposed outside the surge protector, potentially causing messy cable routing. Therefore, a solution is needed that can conveniently modify the wiring of existing multi-gang surge protectors for full-mode protection. Utility Model Content

[0003] This utility model provides a dual-channel integrated protection box, which can conveniently realize the full-mode protection wiring transformation of existing multi-gang surge protectors by replacing the module head;

[0004] The surge protector module head provided by this utility model, which is suitable for full-mode connection, includes a housing and two conductive plates. The two conductive plates can be connected through a lightning protection element and a thermal trip assembly located in the housing. The housing is provided with a channel, and conductive elements with their two ends respectively connected to the two conductive plates can be arranged in the channel.

[0005] Furthermore, the channel portion is provided along the inner wall end face of the housing.

[0006] Furthermore, the housing is provided with a baffle, which divides the housing into two functional cavities for housing the lightning protection element and the thermal trip assembly, respectively. The two functional cavities have slot structures on their end walls opposite to the baffle, and the two conductive sheets extend out of the housing through the corresponding slot structures. A gap is provided between the baffle and the inner wall end face of the housing to form the channel portion.

[0007] Furthermore, the conductive element is made of copper and is bent along the inner wall end face of the housing.

[0008] Furthermore, a window structure is provided on the housing at the functional cavity corresponding to the thermal trip assembly.

[0009] Furthermore, the housing is provided with an opening structure and a cover for closing, the cover being snapped into the housing, and the conductive element being able to be moved into the housing through the opening structure and detachably engaged with the conductive sheet.

[0010] The surge protector applicable to full-mode connection provided by this utility model includes a base, a grounding circuit structure inside the base, an inlet port and an outlet port connected to the grounding circuit structure on the base, and a groove on the base that can be inserted and mated with the housing in the module head as described above. A connecting groove is formed on the inner wall of the groove, and a connecting piece connected to the grounding circuit structure is provided in the connecting groove. The conductive piece can slide with the housing in the connecting groove until it contacts the connecting piece.

[0011] Furthermore, it includes a full-mode connection module, which includes two bases connected through the outgoing port. Two conductive plates in the module head on one of the bases are connected through a surge protection element and a thermal trip assembly located in the housing. Two conductive plates in the module head on the other base are connected through a conductive element.

[0012] Furthermore, the base is provided with a first connection port near the incoming line port, which is connected to the grounding circuit structure.

[0013] Furthermore, the base is also provided with a second connection port near the outgoing port, which is connected to the grounding circuit structure.

[0014] The integrated protection box provided by this utility model includes a terminal, a box body, and a power distribution circuit assembly located inside the box body and electrically connected to the terminal. The two power distribution circuit assemblies are electrically connected to the main power supply circuit and the backup power supply circuit, respectively. Each power distribution circuit assembly includes a first circuit breaker, a second circuit breaker, and a surge protector as described in any of the above.

[0015] Beneficial effects

[0016] The module head in this solution features a short-circuit capability. When short-circuiting the surge protector is required, the short-circuit module head is fitted with the base. This module head does not contain surge protection components or thermal tripping assemblies. During module head assembly, the two conductive plates on the module head are connected by a conductive element. This conductive element extends from one conductive plate to the other within the channel section and is soldered to both conductive plates. At this point, the surge protector in the corresponding circuit of this module head is short-circuited, forming a conductor function. Therefore, this surge protector replaces the exposed fly wires, allowing the connection ports of the multi-gang surge protector to only have overlaps between the incoming and outgoing ports, simplifying the wiring structure when retrofitting existing multi-gang surge protectors with full module connections. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 These are schematic diagrams of the structures of the two module heads provided in Embodiments 1 to 3 of this utility model;

[0019] Figure 2 These are schematic diagrams illustrating the structure of the conductive component and conductive sheet in the module head provided in Embodiments 1 to 3 of this utility model.

[0020] Figure 3 This is a structural schematic diagram of one side of the full-mold connection module provided in Embodiments 1 to 3 of this utility model;

[0021] Figure 4 This is a structural schematic diagram of the other side of the full-mold connection module provided in Embodiments 1 to 3 of this utility model;

[0022] Figure 5 This is a schematic diagram of the integrated protection box provided in Embodiment 3 of this utility model;

[0023] Figure 6 This is a circuit diagram showing the connection between the full-mode connection module provided in Embodiments 2 and 3 of this utility model and other surge protectors.

[0024] Reference numerals: 1-House; 2-Conductive component; 3-Conductive sheet; 4-Surge protection element; 5-Thermal trip assembly; 6-Cover; 7-Baffle; 8-Functional cavity; 9-Base; 10-Module head; 11-Inlet port; 12-First lap port; 13-Metal conductor; 14-Metal conductor; 15-Outlet port; 16-Second lap port; 17-Box; 18-Terminal; 19-Main power supply circuit; 20-Backup power supply circuit; 21-First circuit breaker; 22-Second circuit breaker; 23-Surge protector; 24-Live wire protector; 25-Neutral wire protector; 26-Full module connection module. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0026] Example 1

[0027] A surge protector module head suitable for full-mode connection includes a housing 1 and two conductive plates 3. The two conductive plates 3 can be connected through a surge protection element 4 and a thermal trip assembly 5 located inside the housing 1. The housing 1 is provided with a channel section, in which conductive elements 2 can be installed at both ends, which are respectively connected to the two conductive plates 3.

[0028] To facilitate wiring, the full-module connection of surge protector 23 requires changing one of the surge protectors 23 in a short-circuit manner, that is, bypassing the lightning protection element 4 inside the surge protector 23. The two terminals of the surge protector 23 are directly connected through the conductive element 2. To facilitate short-circuiting of the existing surge protector 23, the module head 10 of the surge protector 23 in this solution has a channel section. The conductive element 2 can be installed in the channel section. The two ends of the conductive element 2 can be connected to the two conductive pieces 3 on the module head 10 respectively. The two conductive pieces 3 on the module head 10 are existing technology solutions and can contact the corresponding structure on the base along with the module head 10, thereby realizing the connection of the module head 10 to the grounding circuit structure of the base.

[0029] In this solution, the module head 10 has a short-circuiting capability. When the surge protector 23 needs to be short-circuited, the short-circuiting module head 10 is engaged with the base. The module head 10 does not contain the lightning protection element 4 or the thermal trip assembly 5. When the module head 10 is assembled, the two conductive plates 3 on the module head 10 are connected by the conductive element 2. The conductive element 2 extends from one of the conductive plates 3 to the other conductive plate 3 in the channel section and is welded to the two conductive plates 3 respectively.

[0030] Alternatively, the module head 10 may also be equipped with a surge protection element 4 and a thermal trip assembly 5. That is, based on a normal surge protection module head 10, the conductive element 2 is connected in parallel with the surge protection element 4 and the thermal trip assembly 5. The two conductive pieces 3 are connected through the conductive element 2. The conductive element 2 extends from one of the conductive pieces 3 to the other conductive piece 3 in the channel section and is welded to the two conductive pieces 3 respectively. The conductive element 2 short-circuits the original surge protection element 4 and the thermal trip assembly 5, thereby achieving short-circuiting of the module head 10.

[0031] In one alternative embodiment, the channel portion is provided along the inner wall end face of the housing 1.

[0032] The conductive element 2 extends along the channel from one conductive plate 3 to another. This design achieves both lightning protection and short-circuit functions for the module head 10 through the same housing 1. Specifically, if the conductive element 2 is installed inside the housing 1, the module head 10 functions as a short circuit; if only the lightning protection element 4 and the thermal trip assembly 5 are retained inside the housing 1, the module head 10 has normal lightning protection functionality. Therefore, the design of the housing 1 must primarily consider normal lightning protection. Since the lightning protection element 4 and the thermal trip assembly 5 occupy most of the space inside the housing 1, the conductive element 2 and the channel need to be installed along the inner wall end face of the housing 1.

[0033] In one optional embodiment, a baffle 7 is provided inside the housing 1, which divides the housing 1 into two functional cavities 8 for setting up the lightning protection element 4 and the thermal trip assembly 5, respectively. The two functional cavities 8 have slot structures on their end walls opposite to the baffle 7, and two conductive sheets 3 extend out of the housing 1 through the corresponding slot structures. A gap is provided between the baffle 7 and the inner wall end face of the housing 1 to form a channel.

[0034] The baffle 7 is located between the two side walls of the housing 1, dividing the housing 1 into two functional cavities 8 for setting up the lightning protection element 4 and the thermal trip assembly 5, respectively. The two functional cavities 8 are arranged along the longitudinal direction of the housing 1. The housing 1 also has two opposite end walls along the longitudinal direction, which correspond to the two functional cavities 8 respectively, forming a part of the cavity wall of each of the two functional cavities 8. The two conductive sheets 3 also extend out of the housing 1 through the slot structure opened on the corresponding end walls, that is, part of the conductive sheet 3 is located outside the housing 1 and part is located in the corresponding functional cavity 8. The baffle 7 is provided with a notch structure for the copper sheet connecting the lightning protection element 4 and the thermal trip assembly 5 to pass through.

[0035] The two sides of the baffle 7 are respectively engaged with the inner wall end faces of the two side walls of the housing 1. The bottom side of the baffle 7 is engaged with the inner wall end face of the bottom plate of the housing 1. There is a gap between the upper side of the baffle 7 and the inner wall end face of the top plate of the housing 1, which forms a channel. One end of the conductive element 2 is welded to the conductive sheet 3 in one of the functional cavities 8. The conductive element 2 is a thin copper sheet structure that extends from the conductive sheet 3 along the inner wall end face of the end wall of the housing 1 to the inner wall end face of the top plate of the housing 1. After being bent, it extends along the inner wall end face of the top plate and extends through the gap between the baffle 7 and the housing 1 to another functional cavity 8. In the other functional cavity 8, it is welded to another conductive sheet 3 in a manner symmetrical to the above structure.

[0036] In one optional embodiment, a window structure is provided on the housing 1 at the functional cavity 8 corresponding to the thermal trip assembly 5.

[0037] The window structure is located on the top plate of the housing 1. The function of the window structure is to observe the status of the thermal trip assembly 5. When the thermal trip assembly 5 takes thermal trip action, different plate colors can be displayed on the window structure by moving the flip plate. For example, in the normal state, the green plate of the flip plate corresponds to the window structure. By observing the color in the window structure, it can be known that the thermal trip assembly 5 is in the normal state. When thermal trip action occurs, the flip plate moves to the window structure with its red plate corresponding to it. By observing the color in the window structure, it can be known that the thermal trip assembly 5 has taken thermal trip action.

[0038] Since the conductive element 2 extends along the inner wall end face of the top plate when it is inside the housing 1, it can be known through the window structure that the housing 1 is equipped with the conductive element 2. Therefore, the module head 10 is a module head 10 with short-circuit function.

[0039] In one alternative embodiment, the housing 1 is provided with an opening structure and a cover 6 for closing. The cover 6 is snap-fitted to the housing 1, and the conductive element 2 can be moved into the housing 1 through the opening structure and detachably engaged with the conductive sheet 3.

[0040] Example 2

[0041] A surge protector suitable for full-mode connection includes a base 9, a grounding circuit structure inside the base 9, an inlet port 11 and an outlet port 15 connected to the grounding circuit structure on the base 9, and a groove on the base 9 that can be inserted and mated with the housing 1 of the module head 10. A connection groove is opened on the inner wall of the groove, and a connection piece connected to the grounding circuit structure is provided in the connection groove. The conductive piece 3 can slide with the housing 1 in the connection groove until it contacts the connection piece.

[0042] The surge protector 23 is connected to the external grounding cable through the inlet port 11 and outlet port 15 on the base 9. The base 9 and the module head 10 are connected through the groove on the base 9. The groove can be inserted into the housing 1 of the module head 10. The groove has two oppositely arranged inner walls with connecting grooves. The connecting groove is provided with connecting pieces connected to the grounding circuit structure. Correspondingly, there are two conductive pieces 3 extending out of the housing 1. When the housing 1 is inserted into the groove, the two conductive pieces 3 are inserted into the connecting groove and slide until they contact the connecting pieces.

[0043] When the module head 10 that mates with the base 9 contains a conductive element 2, the inlet port 11 and outlet port 15 of the surge protector 23 are short-circuited. When the module head 10 that mates with the base 9 does not contain a conductive element 2, but only a surge protection element 4 and a thermal trip assembly 5, the surge protector 23 has a surge protection function by having a surge protection element 4 and a thermal trip assembly 5 between its inlet port 11 and outlet port 15.

[0044] In one optional embodiment, a full-mold connection module 26 is included. The full-mold connection module 26 includes two bases 9 connected through a cable outlet port 15. Two conductive pieces 3 in the module head 10 on one base 9 are connected through a surge protection element 4 and a thermal trip assembly 5 located in the housing 1. Two conductive pieces 3 in the module head 10 on the other base 9 are connected through a conductive element 2.

[0045] The full-mode connection module 26 includes a surge protector 23 with normal lightning protection function and a short-circuited surge protector 23. The two surge protectors 23 are arranged in the same direction, that is, the outgoing ports 15 on the base 9 of the two surge protectors 23 are on the same side, and the incoming ports 11 are also on the same side.

[0046] When the two surge protectors 23 in this solution form a full-module connection module 26, the output ports 15 of the two surge protectors 23 are connected by cables. One surge protector 23 has only a conductive element 2 inside its module head 10, and its input port 11 and output port 15 are short-circuited. The other surge protector 23 has only a lightning protection element 4 and a thermal trip assembly 5 inside its module head 10. The full-module connection module 26 is also arranged in the same direction as the normal surge protector 23; that is, the two output ports 15 of the full-module connection module 26 and the output port 15 on the base 9 of the normal surge protector 23 are on the same side, and the input port 11 is also on the same side. The full-mode connection module 26 is connected to the input port 11 of the normal surge protector 23. Specifically, the input port 11 of one base 9 is connected to the input port 11 of a normal surge protector 23 via a cable or other conductive structure. The input port 11 of the other base 9 is also connected to the input port 11 of another normal surge protector 23 via a cable or other conductive structure. In the case of a single-phase circuit, the grounding circuits of the neutral and live wires need to be connected through the full-mode connection module 26. In this case, the live wire and neutral wire are respectively connected to a normal surge protector 23 via a grounding circuit. The two surge protectors 23 can be referred to as the live wire protector 24 and the neutral wire protector 25. The input port 11 of the live wire protector 24 is connected to the input port 11 of the normal surge protector 23 in the full-mode connection module 26 via a metal conductor 13. The input port 11 of the neutral wire protector 25 is also connected to the input port 11 of the surge protector 23 that is short-circuited in the full-mode connection module 26 via a metal conductor 13.

[0047] In one alternative embodiment, the base 9 is further provided with a first connection port 12 near the inlet port 11, which is connected to the grounding circuit structure. The base 9 is further provided with a second connection port 16 near the outlet port 15, which is connected to the grounding circuit structure.

[0048] The first lap port 12 and the inlet port 11 are located on the same side of the base 9. That is, the grounding circuit structure in the base 9 has two connection points on this side of the base 9 that can be connected to the grounding cable, namely the first lap port 12 and the inlet port 11. The structure of the outlet port 15 and the second lap port 16 is the same as described above, and will not be described in detail here.

[0049] When the full-mode connection module 26 is used in conjunction with the normal surge protector 23, in the case of a single-phase circuit, the incoming port 11 of the live wire protector 24 is connected to the grounding cable corresponding to the live wire, and the first contact port 12 of the live wire protector 24 is connected to the first contact port 12 of the normal surge protector 23 in the full-mode connection module 26 through a metal conductor 13. The incoming port 11 of the neutral wire protector 25 is connected to the grounding cable corresponding to the neutral wire, and the first contact port 12 of the neutral wire protector 25 is connected to the first contact port 12 of the short-circuited surge protector 23 in the full-mode connection module 26 through a metal conductor 13. The second contact port 16 of the live wire protector 24 and the second contact port 16 of the neutral wire protector 25 are connected to the grounding busbar through a metal conductor 14.

[0050] Example 3

[0051] A protective enclosure includes a terminal 18, a enclosure 17, and a power distribution circuit assembly located within the enclosure 17 and electrically connected to the terminal 18. The two power distribution circuit assemblies are electrically connected to a main power supply circuit 19 and a backup power supply circuit 20, respectively. Each power distribution circuit assembly includes a first circuit breaker 21, a second circuit breaker 22, and a surge protector 23 as described above.

[0052] The enclosure 17 in this design has two power supply circuits: a main power supply circuit 19 and a backup power supply circuit 20. For the power distribution circuit components that work with the power supply circuits, the first circuit breaker 21 is located on the incoming side of the integrated protection box. The power supply circuit cables pass through the outside of the enclosure 17. The live wire and neutral wire are first connected to the first circuit breaker 21. The neutral wire is connected to the copper busbar inside the enclosure 17 at the outgoing port of the first circuit breaker 21. The live wire is connected to the second circuit breaker 22 via a cable at the outgoing port of the first circuit breaker 21. The second circuit breaker 22 is located on the outgoing side of the integrated protection box. After the live wire passes through the outgoing port of the second circuit breaker 22, it exits the enclosure 17 along with the neutral wire.

[0053] It is worth noting that both the live wire and neutral wire of this power supply circuit are connected to a first circuit breaker 21, thereby achieving unified control of the power supply circuit. The live wire of this power supply circuit is connected to one of a plurality of second circuit breakers 22. The input port of the second circuit breaker 22 is connected to the other plurality of second circuit breakers 22 through a metal conductor 13, thereby achieving branching of the live wire. Each live wire is individually controlled by its corresponding second circuit breaker 22. The input port of another of the plurality of second circuit breakers 22 is also connected to the live wire protector 24 of a plurality of surge protectors 23 through a cable, as in Embodiment 2.

[0054] Multiple cables are also connected to the copper busbar to realize the branching of the neutral wire. One of the cables is connected to the neutral wire protector 25 among the multiple surge protectors 23, and the connection method is as in Embodiment 2. The other cables are branched out of the box 17 to the corresponding live wires.

[0055] It should be noted that any of the above embodiments are illustrative of the present invention and not limiting of it, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware comprising a plurality of different elements and by means of a suitably programmed computer. In the unit claims enumerating a plurality of means, several of these means may be embodied by the same item of hardware. The use of the words first-level, second-level, preceding, and following, etc., does not indicate any order. These words may be interpreted as names.

[0056] The above embodiments are only suitable for illustrating the present utility model and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model, and the patent protection scope of the present utility model should be defined by the claims.

Claims

1. A module head for a surge protector suitable for full-mode connection, comprising a housing (1) and two conductive plates (3), characterized in that, The two conductive sheets (3) can be connected by a lightning protection element (4) and a thermal trip assembly (5) located in the housing (1). The housing (1) is provided with a channel, and a conductive element (2) with its two ends respectively connected to the two conductive sheets (3) can be provided in the channel.

2. The module head of the surge protector applicable to full-mode connection according to claim 1, characterized in that, The channel portion is provided along the inner wall end face of the housing (1).

3. The module head of the surge protector applicable to full-mode connection according to claim 2, characterized in that, The housing (1) is provided with a baffle (7), which divides the housing (1) into two functional cavities (8) for setting the lightning protection element (4) and the thermal trip assembly (5), respectively. The two functional cavities (8) have slot structures on their end walls opposite to the baffle (7). The two conductive sheets (3) extend out of the housing (1) through the corresponding slot structures. A gap is provided between the baffle (7) and the inner wall end face of the housing (1) to form the channel.

4. The module head of the surge protector applicable to full-mode connection according to claim 3, characterized in that, The conductive element (2) is made of copper and is bent along the inner wall end face of the housing (1).

5. The module head of the surge protector applicable to full-mode connection according to claim 3, characterized in that, The housing (1) is provided with a window structure at the functional cavity (8) corresponding to the thermal trip assembly (5).

6. The module head of the surge protector applicable to full-mode connection according to claim 3, characterized in that, The housing (1) is provided with an opening structure and a cover (6) for closing. The cover (6) is snapped into the housing (1). The conductive element (2) can be moved into the housing (1) through the opening structure and detachably engaged with the conductive sheet (3).

7. A surge protector suitable for full-mode connection, comprising a base (9), characterized in that, The base (9) is provided with a grounding circuit structure. The base (9) is provided with an inlet port (11) and an outlet port (15) connected to the grounding circuit structure. The base (9) is also provided with a connecting piece that can contact the conductive piece (3) in the module head (10) as described in any one of claims 1-6. The connecting piece is connected to the grounding circuit structure.

8. The surge protector applicable to full-mode connection according to claim 7, characterized in that, The system includes a full-mode connection module (26), which includes two bases (9). The two bases (9) are connected through the outgoing port (15). Two conductive pieces (3) in the module head (10) on one of the bases (9) are connected through a lightning protection element (4) and a thermal trip assembly (5) located in the housing (1). Two conductive pieces (3) in the module head (10) on the other base (9) are connected through a conductive element (2).

9. The surge protector applicable to full-mode connection according to claim 8, characterized in that, The base (9) is also provided with a first lap port (12) connected to the grounding circuit structure near the inlet port (11); the base (9) is also provided with a second lap port (16) connected to the grounding circuit structure near the outlet port (15).

10. A comprehensive protection box, comprising a terminal (18), a box body (17), and a power distribution circuit assembly located within the box body (17) and electrically connected to the terminal (18), characterized in that, The two power distribution circuit components are electrically connected to the main power supply circuit (19) and the backup power supply circuit (20), respectively. Each power distribution circuit component includes a first circuit breaker (21), a second circuit breaker (22), and a surge protector (23) as described in any one of claims 5-8.

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