Full-mode connection structure of surge protector and comprehensive protection box

Abstract

The utility model relates to the field of surge protectors, in particular to a full-mode connection structure of a surge protector and a comprehensive protection box. The full-mode connection structure of the surge protector comprises at least two surge protector groups, each surge protector group comprises two surge protector units arranged in the same direction, and each surge protector unit comprises a lightning protection circuit structure assembly. The incoming line port and the incoming line lapping port are connected with one end of the lightning protection circuit structure assembly, the outgoing line port and the outgoing line lapping port are connected with the other end of the lightning protection circuit structure assembly, the two incoming line lapping ports are detachably and electrically connected, one incoming line port is connected with an external cable, and the other incoming line port is connected with an external cable. Wherein one wire outlet port is connected with external grounding, and the other wire outlet port can be connected with one wire inlet port of the adjacent surge protector group.

Description

Technical Field

[0001] This invention relates to the field of surge protectors, and in particular to a full-mold connection structure and integrated protection box for a surge protector. Background Technology

[0002] Surge protectors are available in 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 surge protectors, each surge protection element can be connected to one protection circuit via an external connection 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 jumper wires. 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 within the surge protection circuit. On one side of the surge protector, multiple outgoing ports are located on the other side. One outgoing port needs to be connected to one incoming port. The connecting cable needs to be routed from one side of the surge protector to the other. To facilitate the flying wire operation, the connecting cable must also be a flexible cable. Therefore, the connecting cable needs to be inserted into the same incoming port as the external grounding cable, which causes inconvenience in operation. In fact, when the cable diameter is large, there is a problem of not being able to fix it. Therefore, a solution is needed so that each port of the surge protector is connected to only one cable, so that the surge protector can achieve full-mode connection of multiple surge protectors according to the preset wiring method. Summary of the Invention

[0003] This invention provides a full-mode connection structure for surge protectors, which can prevent multiple cables from being inserted into the same port when multiple surge protectors are connected in full mode.

[0004] The surge protector full-mode connection structure provided by the present invention includes at least two surge protector groups. Each surge protector group includes two surge protector units arranged in the same direction. Each surge protector unit includes a lightning protection circuit structure component, an inlet port and an inlet grounding port connected to one end of the lightning protection circuit structure component, and an outlet port and an outlet grounding port connected to the other end of the lightning protection circuit structure component. The two inlet grounding ports are detachably electrically connected. One of the inlet ports is connected to an external cable, one of the outlet ports is connected to an external ground, and the other outlet port can be connected to one of the inlet ports of an adjacent surge protector group.

[0005] Furthermore, the incoming port is connected to the outgoing port of the adjacent surge protector group via a splice cable.

[0006] Furthermore, the full-mold connection structure of the surge protector also includes a bracket, which includes a mounting plate and legs located on the side of the mounting plate. The mounting plate can cooperate with at least two surge protector groups arranged in the same direction. The legs can be connected to the mounting position for mounting the surge protector groups. A gap is formed between the mounting plate and the mounting position, allowing the lap cable to pass through. The two ends of the lap cable can extend out of the gap from the side of the mounting plate near the inlet port and the outlet port, respectively.

[0007] Furthermore, the two incoming wire connection ports are connected by a first conductive sheet.

[0008] Furthermore, the outgoing line connection port corresponding to the outgoing line port that can be connected to the external ground is connected to the outgoing line connection port corresponding to the outgoing line port of the adjacent surge protector group that can be connected to the external ground via a second conductive plate.

[0009] Furthermore, one of the two outgoing wire terminals connected to the second conductive sheet is connected to an external ground.

[0010] Furthermore, the second conductive sheet is connected to an external ground.

[0011] Furthermore, the surge protection circuit structure assembly includes surge protection elements and thermal tripping components disposed within the housing of the module head, and surge protection circuit structure components disposed within the housing of the base. The inlet port and the inlet connection port are disposed at one end of the housing of the base, and the outlet port and the outlet connection port are disposed at the opposite end of the housing of the base.

[0012] The integrated protection box provided by the present invention includes a box body and a power distribution circuit assembly located inside the box body. The power distribution circuit assembly includes two sets of power distribution elements electrically connected to the main power supply circuit and the backup power supply circuit respectively, and a double-switching module. The box body is also provided with a terminal. Each set of power distribution elements includes a first circuit breaker, a second circuit breaker, and a surge protector unit from the surge protector group as described above, which are electrically connected to the terminal body respectively.

[0013] Furthermore, the integrated protection box also includes a grounding resistance tester, which is electrically connected to the terminal.

[0014] Beneficial effects

[0015] The advantage of this solution is that it facilitates wiring operations. Specifically, the incoming port of one of the two surge protector units in each surge protector group is connected to an external cable, such as the grounding protection wire of the neutral wire. To facilitate the wiring modification for full-mode connection, the incoming connection port of this surge protector unit can be detachably connected to the incoming connection port of the other surge protector unit. The outgoing port of the former surge protector unit is connected to an incoming port of the adjacent surge protector group through a jumper wire, and the outgoing port of the latter surge protector unit is connected to an external cable.

[0016] For adjacent surge protector groups, the incoming port of one of the two surge protector units in the surge protector group is connected to the grounding protection wire of an external cable, such as the live wire. The incoming connection port of this surge protector unit can also be detachably connected to the incoming connection port of the other surge protector unit. The incoming port of the latter surge protector unit is already connected to the aforementioned flying wire, and the outgoing port of the latter surge protector unit is connected to an external cable. That is, each port of the surge protector in this solution is wired in the existing way, and each port is connected to only one cable or a detachable conductive structure. Therefore, a full-mode connection between the phase wire and the neutral wire can be directly achieved using the existing surge protector ports. Attached Figure Description

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

[0018] Figure 1 This is a schematic diagram of the structure of one side of the incoming port of the surge protector group provided in Embodiment 1 of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of one side of the outgoing port of the surge protector group provided in Embodiment 1 of the present invention;

[0020] Figure 3 This is a schematic diagram of the surge protector assembly and its bracket provided in Embodiment 1 of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure on one side of the outgoing port of the two surge protector groups provided in Embodiment 1 and Embodiment 2 of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure on one side of the incoming port of the two surge protector groups provided in Embodiment 1 and Embodiment 2 of the present invention;

[0023] Figure 6 This is a simplified circuit diagram of the two surge protector groups provided in Embodiment 1 and Embodiment 2 of the present invention.

[0024] Figure 7 This is a schematic diagram of the integrated protection box provided in Embodiment 2 of the present invention.

[0025] Reference numerals: 1-Lightning protection circuit structure component; 2-Incoming port; 3-Incoming connection port; 4-Connecting cable; 5-First conductive plate; 6-Outgoing port; 7-Outgoing connection port; 8-Second conductive plate; 9-Mounting plate; 10-Feet; 11-Surge protector group; 12-Bracket; 13-First neutral surge protection unit; 14-Second neutral surge protection unit; 15-Second live surge protection unit; 16-First live surge protection unit; 17-Enclosure; 18-Terminal; 19-First circuit breaker; 20-Double-cut module; 21-Grounding resistance tester; 22-Second circuit breaker; 23-Surge protector unit. Detailed Implementation

[0026] The specific embodiments of the present invention 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 present invention.

[0027] Example 1

[0028] A full-mode connection structure for a surge protector includes at least two surge protector groups 11. Each surge protector group 11 includes two surge protector units 23 arranged in the same direction. Each surge protector unit 23 includes a lightning protection circuit structure component 1, an inlet port 2 and an inlet grounding port 3 connected to one end of the lightning protection circuit structure component 1, and an outlet port 6 and an outlet grounding port 7 connected to the other end of the lightning protection circuit structure component 1. The two inlet grounding ports 3 are detachably electrically connected. One inlet port 2 is connected to an external cable, and the other inlet port 2 is connected to one of the outlet ports 6 of the adjacent surge protector group 11. One outlet port 6 is connected to an external ground, and the other outlet port 6 can be connected to one of the inlet ports 2 of the adjacent surge protector group 11.

[0029] In this scheme, the surge protector group 11 has two surge protector units 23. One unit is used to connect to an external cable, and the other unit is used to connect to an adjacent surge protector group 11, thereby forming a differential mode connection between the phase line and the neutral line. Specifically, each surge protector unit 23 in this scheme has an inlet port 2, an inlet connection port 3, an outlet port 6, and an outlet connection port 7. All of the above ports are connected to the lightning protection circuit structure component 1. The lightning protection circuit structure component 1 includes a lightning protection module and a lightning protection circuit structure. The lightning protection module is existing technology, and the lightning protection circuit structure is a conductive structure inside the surge protector unit 23, such as a wire or copper sheet. The inlet port 2 and the inlet connection port 3 are located at the end of the lightning protection circuit structure on one side of the lightning protection module, and the outlet port 6 and the outlet connection port 7 are located at the end of the lightning protection circuit structure on the other side of the lightning protection module. The lightning protection module can be connected to an external cable through the inlet port 2 and the outlet port 6, thereby connecting to the surge protection circuit.

[0030] The advantage of this solution is that it facilitates wiring operations. Specifically, the two surge protector units 23 of each surge protector group 11 are the first surge protector unit 23 and the second surge protector unit 23, respectively. The incoming port 2 of the first surge protector unit 23 is connected to the external cable, and the incoming connection port 3 of the first surge protector unit 23 is also connected to the incoming connection port 3 of the second surge protector unit 23. The incoming port 2 of the second surge protector unit 23 is connected to the adjacent surge protector group 11, and the outgoing port 6 of the second surge protector unit 23 is connected to the external cable. That is, each port of the surge protector in this solution is wired in the existing way, and the full-mode connection between the phase wire and the neutral wire can be achieved directly using the existing surge protector ports.

[0031] In one alternative implementation, the incoming port 2 is connected to the outgoing port 6 of the adjacent surge protector group 11 via a splice cable 4.

[0032] In this scheme, all surge protector units 23 are arranged in the same direction, that is, all outgoing ports 6 and outgoing connection ports 7 are located on the same side, while incoming ports 2 and incoming connection ports 3 are located on the other side. Therefore, the incoming port 2 and the outgoing port 6 of the adjacent surge protector group 11 need to be connected by a flexible cable extending from one side of the surge protector group 11 to the other side.

[0033] For a single-phase circuit, there are two surge protector groups 11: a live wire surge protector group 11 and a neutral wire surge protector group 11, totaling four surge protector units 23. These are a first live wire surge protector unit 16 and a second live wire surge protector unit 15, a first neutral wire surge protector unit 13, and a second neutral wire surge protector unit 14. The input port 2 of the first live wire surge protector unit 16 is connected to the protective cable for the live wire, and the input port 2 of the first neutral wire surge protector unit 13 is connected to the protective cable for the neutral wire. The incoming line connection port 3 of unit 16 is connected to the incoming line connection port 3 of the second live wire surge protection unit 15. The incoming line connection port 3 of the first neutral wire surge protection unit 13 is connected to the incoming line connection port 3 of the second neutral wire surge protection unit 14. The incoming line port 2 of the second live wire surge protection unit 15 is connected to the outgoing line port 6 of the first neutral wire surge protection unit 13. The outgoing line port 6 of the second live wire surge protection unit 15 is connected to the externally grounded cable. The outgoing line port 6 of the second neutral wire surge protection unit 14 is connected to the externally grounded cable.

[0034] In one alternative embodiment, the full-mold connection structure of the surge protector further includes a bracket 12, which includes a mounting plate 9 and a support leg 10 located on the side of the mounting plate 9. The mounting plate 9 can cooperate with at least two surge protector assemblies 11 arranged in the same direction, and the support leg 10 can be connected to the mounting position for setting the surge protector assembly 11. A gap is formed between the mounting plate 9 and the plate surface of the mounting position, through which the overlapping cable 4 can pass. The two ends of the overlapping cable 4 can extend out of the gap from the side of the mounting plate 9 near the inlet port 2 and the outlet port 6, respectively.

[0035] The bracket 12 is used to support the surge protector assembly 11, so that a gap is formed between it and the plate of the mounting position for the lap cable 4 to pass through, so that the lap cable 4 can extend from one side of the surge protector assembly 11 to the other side along a shorter path.

[0036] Preferably, the two incoming wire connection ports 3 are connected by a first conductive sheet 5 of a rigid copper structure.

[0037] In one optional embodiment, the outgoing line connection port 7 corresponding to the outgoing line port 6 that can be connected to the external ground is connected to the outgoing line connection port 7 corresponding to the outgoing line port 6 of the adjacent surge protector group 11 that can be connected to the external ground via a second conductive piece 8.

[0038] That is, the output terminal 7 of the second live wire surge protection unit 15 is connected to the output terminal 7 of the second neutral wire surge protection unit 14 through the second conductive sheet 8 of the copper rigid structure, and one of the output terminals 6 of the second live wire surge protection unit 15 and the second neutral wire surge protection unit 14 is connected to the externally grounded cable.

[0039] Alternatively, the second conductive piece 8 can be connected to an externally grounded cable.

[0040] In one optional embodiment, the surge protection circuit structure assembly 1 includes a surge protection element and a thermal trip assembly disposed in the housing of the module head, and a surge protection circuit structure disposed in the housing of the base. The inlet port 2 and the inlet connection port 3 are disposed at one end of the housing of the base, and the outlet port 6 and the outlet connection port 7 are disposed at the opposite end of the housing of the base.

[0041] Example 2

[0042] A protective enclosure includes a enclosure 17 and a power distribution circuit assembly located within the enclosure 17. The power distribution circuit assembly includes two sets of power distribution elements electrically connected to the main power supply circuit and the backup power supply circuit, respectively, and a double-switching module 20. The enclosure 17 is also provided with a terminal 18. Each set of power distribution elements includes a first circuit breaker 19, a second circuit breaker 22, and a surge protector unit 23 in a surge protector group 11, which are electrically connected to the terminal 18, respectively.

[0043] The first circuit breaker 19 of each group of power distribution components is located on the incoming side of the integrated protection box. The power supply circuit cable is passed through the outside of the box 17. The live wire and neutral wire are first connected to the first circuit breaker 19. The live wire and neutral wire are split at the outgoing port of the first circuit breaker 19. After splitting, one of the two cables is connected to the double-switching module 20. That is, after the main power supply circuit and the backup power supply circuit cable are connected to the double-switching module 20, the live wire and neutral wire of the double-switching module 20 are split again at the incoming end of the second circuit breaker 22 and then split into multiple lines connected to the second circuit breaker 22. The second circuit breaker 22 is located on the outgoing side of the integrated protection box and finally passes out of the integrated protection box.

[0044] The live wire and neutral wire are connected to the surge protector group 11 after being split at the output port of the first circuit breaker 19. According to the method in Embodiment 1, one of the live wires and neutral wires after the main power supply circuit is split is connected to the live wire surge protector group 11 and the neutral wire surge protector group 11 in one surge protector module. The live wire and neutral wire after the backup power supply circuit is split is also connected to the live wire surge protector group 11 and the neutral wire surge protector group 11 in another surge protector module in the same way.

[0045] It is worth noting that the live wire and neutral wire of this power supply circuit are both connected to a first circuit breaker 19, thereby realizing 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 port of the incoming line of the second circuit breaker 22 is connected to the other plurality of second circuit breakers 22 through a metal conductor, thereby realizing the branching of the live wire. The neutral wire is also branched in the same way as the live wire. Each live wire and neutral wire is individually controlled by its corresponding second circuit breaker 22.

[0046] In one alternative implementation, the integrated protection box further includes a grounding resistance tester 21, which is electrically connected to the terminal 18.

[0047] Terminal 18 is powered by a main power supply circuit and a backup power supply circuit. Specifically, the live wire and neutral wire of the main power supply circuit are connected to the main power supply port of terminal 18 after the branch line of the first circuit breaker 19. The live wire and neutral wire of the backup power supply circuit are connected to the backup power supply port of terminal 18 after the branch line of the first circuit breaker 19. Terminal 18 has a power supply module to output power to the grounding resistance tester 21. Terminal 18 also transmits signals with the grounding resistance tester 21. After processing the collected grounding resistance signal, the grounding resistance tester 21 transmits the information to terminal 18, and then transmits it to the host computer or cloud via terminal 18.

[0048] Preferably, the grounding resistance tester 21 is installed on the door of the enclosure 17.

[0049] It should be noted that any of the above embodiments are illustrative of the invention and not restrictive, 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 invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims enumerating several 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 can be interpreted as names.

[0050] The above embodiments are only suitable for illustrating the present invention and are not intended to limit the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the present invention, and the patent protection scope of the present invention should be defined by the claims.

Claims

1. A full-mode connection structure for a surge protector, characterized in that, The device includes at least two surge protector groups (11), each surge protector group (11) including two surge protector units (23) arranged in the same direction, each surge protector unit (23) including a lightning protection circuit structure assembly (1), an inlet port (2) and an inlet grounding port (3) connected to one end of the lightning protection circuit structure assembly (1), and an outlet port (6) and an outlet grounding port (7) connected to the other end of the lightning protection circuit structure assembly (1). The two inlet grounding ports (3) are detachably electrically connected, one of the inlet ports (2) is connected to an external cable, one of the outlet ports (6) is connected to an external ground, and the other outlet port (6) can be connected to one of the inlet ports (2) of the adjacent surge protector group (11).

2. The full-mode connection structure of the surge protector according to claim 1, characterized in that, The incoming port (2) is connected to the outgoing port (6) of the adjacent surge protector group (11) via a crossover cable (4).

3. The full-mode connection structure of the surge protector according to claim 2, characterized in that, The full-mold connection structure of the surge protector also includes a bracket (12), the bracket (12) including a mounting plate (9) and a support leg (10) located on the side of the mounting plate (9). The mounting plate (9) can cooperate with at least two surge protector groups (11) arranged in the same direction. The support leg (10) can be connected to the mounting position for setting the surge protector group (11). A gap is formed between the mounting plate (9) and the plate surface of the mounting position, through which the lap cable (4) can pass. The two ends of the lap cable (4) can extend out of the gap from the side of the mounting plate (9) near the inlet port (2) and the outlet port (6), respectively.

4. The full-mode connection structure of the surge protector according to claim 3, characterized in that, The two incoming wire connection ports (3) are connected by the first conductive sheet (5).

5. The full-mode connection structure of the surge protector according to claim 3, characterized in that, The outgoing line connection port (7) corresponding to the outgoing line port (6) that can be connected to the external ground is connected to the outgoing line connection port (7) corresponding to the outgoing line port (6) of the adjacent surge protector group (11) that can be connected to the external ground through the second conductive piece (8).

6. The full-mode connection structure of the surge protector according to claim 5, characterized in that, One of the two outgoing wire terminals (7) connected to the second conductive sheet (8) is connected to an external ground.

7. The full-mode connection structure of the surge protector according to claim 5, characterized in that, The second conductive sheet (8) is connected to an external ground.

8. The full-mode connection structure of the surge protector according to any one of claims 1-7, characterized in that, The lightning protection circuit structure assembly (1) includes a lightning protection element and a thermal trip assembly disposed in the housing of the module head, and a lightning protection circuit structure disposed in the housing of the base. The inlet port (2) and the inlet connection port (3) are disposed at one end of the housing of the base, and the outlet port (6) and the outlet connection port (7) are disposed at the opposite end of the housing of the base.

9. A protective enclosure, comprising an enclosure body (17) and a power distribution circuit assembly located within the enclosure body (17), characterized in that, The power distribution circuit assembly includes two sets of power distribution elements electrically connected to the main power supply circuit and the backup power supply circuit respectively, and a double-switching module (20). The enclosure (17) is also provided with a terminal (18). Each set of power distribution elements includes a first circuit breaker (19), a second circuit breaker (22), and a surge protector unit (23) in the full-mode connection structure of the surge protector as described in any one of claims 5-8, which are electrically connected to the terminal (18) respectively.

10. The integrated protection box according to claim 9, characterized in that, The integrated protection box also includes a grounding resistance tester (21), which is electrically connected to the terminal (18).

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