Surge protector structure

Abstract

The utility model discloses a surge protector structure, which comprises a wiring base and a double-cavity protector shell, the double-cavity protector shell is electrically connected, installed and used relative to the wiring base, and a first electrode assembly, a second electrode assembly, a double-trigger indicating rod and a work indicating plate are arranged in the double-cavity protector shell. The double-cavity protector shell is provided with an indication window, the work indication plate is provided with a turnover plate which is located on one side of the indication window and swings relative to the indication window in a hinged mode, and the double-trigger indication rod is provided with an indication face which is located below the indication window. An L line conductive assembly, an N line conductive assembly and a PE line conductive assembly which are electrically connected with the first electrode assembly and the second electrode assembly are further arranged in the double-cavity protector shell; the structure of the surge protector provided by the utility model is provided with red and green state indications, in addition, the surge protector changes an internal circuit, three protection modes of totally protecting L-N, L-PE and N-PE are realized, and compared with a conventional protector, the surge protector provided by the utility model is better in use effect and function.

Description

Technical Field

[0001] This utility model relates to the field of surge protector technology, and specifically to a surge protector structure. Background Technology

[0002] Surge protectors (SPDs) are indispensable devices for lightning protection of electronic equipment. They limit transient overvoltages entering power lines and signal transmission lines to within the voltage range that the equipment or system can withstand, or divert powerful lightning currents to the ground, protecting the equipment or system from damage. A thermal disconnect mechanism is essential in surge protectors. This mechanism activates promptly to disconnect the circuit when the surge protector overheats. Once the thermal disconnect mechanism activates, the surge protector is considered faulty and needs immediate replacement. Because surge protectors are used in parallel with the protected circuit, their failure is not easily detected. Therefore, an indicator mechanism is included in surge protectors to indicate whether they are still in an effective state.

[0003] A surge protector is disclosed in the prior art. This surge protector can accommodate two varistor chips or electrode assemblies. When lightning, surges, or overvoltages occur, the surge protector starts to work, discharging excessive current to protect the equipment. That is, when the current generated by lightning, surges, or overvoltages is too large and exceeds the surge protector's tolerance, the surge protector will be damaged.

[0004] However, the indicator window of the existing conventional surge protector (SPD) is located at the top of the product, which is not easy to observe. When in use, it is inconsistent with the indicator window of the supporting equipment, which is inconvenient for the staff to observe. In addition, the conventional indicator window only displays red indicators, and the function indication needs to be improved. Secondly, conventional surge protectors (SPD) generally only have two protection states: LN and L-PE. Utility Model Content

[0005] In view of the prior art, the purpose of this utility model is to provide a surge protection structure with red-green dual-color state switching, and the surge protector can protect against three protection modes, LN, L-PE and N-PE, by modifying the internal circuit, and has better functionality.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a surge protector structure, including a wiring base and a dual-cavity protector housing, wherein the dual-cavity protector housing is electrically connected to and installed relative to the wiring base. The dual-cavity protector housing is provided with a first electrode assembly and a second electrode assembly, a dual-trigger indicator rod and a working indicator plate. The dual-cavity protector housing is provided with an indicator window. The working indicator plate is provided with a flip plate located on one side of the indicator window and hinged relative to it. The dual-trigger indicator rod is provided with an indicator surface located below the indicator window. When the dual-trigger indicator rod extends to its dead point and abuts against the indicator window and opens the flip plate, when it retracts to its dead point and releases the area below the indicator window, the flip plate swings under its own gravity and faces the indicator window. The dual-cavity protector housing is also provided with an L-line conductive assembly, an N-line conductive assembly and a PE-line conductive assembly electrically connected to the first electrode assembly and the second electrode assembly.

[0007] As a further feature of the above scheme, the dual-trigger indicator includes an L-bar and an N-bar, and the L-bar and N-bar are respectively configured to correspond to a set of working indicator plates.

[0008] As a further feature of the above solution, a spring is fitted onto the dual-trigger indicator rod, which is used to push the dual-trigger indicator rod toward the dead point of extension. The dual-trigger indicator rod is also provided with a release structure.

[0009] As a further feature of the above solution, the dual-trigger indicator rod is provided with a tripping groove, and the tripping structure includes a buckle plate that is locked in the tripping groove. The first electrode assembly and the second electrode assembly are provided with electrode plates, and the electrode plates are fixed to the buckle plate by low-temperature soldering.

[0010] As a further feature of the above solution, the working indicator plate includes a fixing plate that is locked in a locking slot on the housing of the dual-cavity protector. The flip plate and the fixing plate are hinged together and swing relative to each other. The housing of the dual-cavity protector is also provided with a retaining slot that is opposite to the unfolded position of the flip plate.

[0011] As a further feature of the above solution, the L-line conductive assembly includes an L-line interface, a first conductive plate, and a first clamping plate located on the wiring base. It also includes a first insert fixedly installed inside the dual-cavity protector housing. One end of the first insert extends out of the dual-cavity protector housing and is positioned opposite the first clamping plate, while the other end is electrically connected to the tripping structure on the L-rod.

[0012] As a further provision of the above solution, the N-line conductive component includes an N-line interface, a second conductive piece, and a second clip, and also includes a second insert, a second connecting piece, and a first connecting piece fixedly disposed within the dual-cavity protector housing. One end of the second insert extends out of the dual-cavity protector housing and is positioned directly opposite the second clip. The second insert is also provided with a second slot corresponding to the second connecting piece and a first slot corresponding to the first connecting piece. The first connecting piece penetrates through the two cavities of the dual-cavity protector housing.

[0013] As a further feature of the above solution, the PE wire conductive assembly includes a PE wire interface, a third conductive piece, and a third clamping piece. It also includes a third insert fixedly disposed inside the housing of the dual-cavity protector. One end of the third insert extends out of the housing of the dual-cavity protector and is positioned opposite the third clamping piece, while the other end is electrically connected to the tripping structure on the N rod.

[0014] As a further feature of the above scheme, the dual-trigger indicator rod is red on at least the side facing the indicator window, and the working indicator plate is green on at least the side facing the indicator window after being flipped.

[0015] Beneficial effects: The surge protector structure of this utility model moves the indicator window to the lower end of the product to match the conventional product window. It not only has a surge protection structure with red and green dual-color switching, providing a green indicator during normal operation, but also extends the corresponding red indicator during a fault, folding the green indicator to show a red fault status. In addition, this surge protector modifies the internal circuitry to achieve a total of three protection modes: LN, L-PE, and N-PE. Compared with conventional protectors, its performance and functions are better. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the surge protector structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the wiring base structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the dual-cavity protective shell structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the surge protector L-bar side cavity structure in this embodiment.

[0020] Figure 5 This is a schematic diagram of the N-bar side cavity structure of the surge protector in this embodiment.

[0021] Figure 6 This is a schematic diagram of the first electrode assembly in this embodiment.

[0022] Figure 7 This is a schematic diagram of the second electrode assembly in this embodiment.

[0023] Figure 8 This is a schematic diagram showing the connection between the two connecting pieces and the two slots in this embodiment.

[0024] Reference numerals: 1. Wiring base; 2. Dual-cavity protector housing; 21. Locking slot; 22. Fixing plate; 31. First electrode assembly; 32. Second electrode assembly; 33. Electrode plate; 4. Dual trigger indicator rod; 41. Indicating surface; 42. Spring element; 44. L-rod; 45. N-rod; 46. Tripping slot; 47. Buckle plate; 5. Working indicator plate; 51. Flip plate; 59. Retaining slot; 6. Indicating window; 7. L-line conductive assembly; 70. Conductive cable 71. L-line interface; 72. First conductive piece; 73. First clip; 74. First insert; 8. N-line conductive assembly; 81. N-line interface; 82. Second conductive piece; 83. Second clip; 84. Second insert; 85. Second connecting piece; 86. Second slot; 87. First slot; 88. First connecting piece; 9. PE-line conductive assembly; 91. PE-line interface; 92. Third conductive piece; 93. Third clip; 94. Third insert. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other.

[0026] like Figure 1-8 The surge protector structure of this utility model, as shown, includes a wiring base 1 and a dual-cavity protector housing 2. The dual-cavity protector housing 2 is electrically connected to and installed relative to the wiring base 1. The dual-cavity protector housing 2 is provided with a first electrode assembly 31, a second electrode assembly 32, a dual-trigger indicator rod 4, and a working indicator plate 5. The dual-cavity protector housing 2 is provided with an indicator window 6. The working indicator plate 5 is provided with a flip plate 51 located on one side of the indicator window 6 and hinged to it. The dual-trigger indicator rod 4 is provided with an indicator surface 41 located below the indicator window 6. When the dual-trigger indicator rod 4 extends to its dead point and abuts against the indicator window 6 and opens the flip plate 51, when it retracts to its dead point and releases the area below the indicator window 6, the flip plate 51 swings under its own gravity and faces the indicator window 6. The dual-cavity protector housing 2 is also provided with an L-line conductive assembly 7, an N-line conductive assembly 8, and a PE-line conductive assembly 9, which are electrically connected to the first electrode assembly 31 and the second electrode assembly 32.

[0027] As a further feature of the above scheme, the dual-trigger indicator 4 includes an L-bar 44 and an N-bar 45, with the L-bar 44 and N-bar 45 each corresponding to a set of working indicator plates 5.

[0028] As a further feature of the above scheme, a spring 42 is fitted onto the dual trigger indicator 4. The spring 42 is used to push the dual trigger indicator 4 toward the dead point of extension. The dual trigger indicator 4 is also provided with a release structure. The dual trigger indicator 4 is provided with a release groove 46. The release structure includes a buckle plate 47 that is locked in the release groove 46. The first electrode assembly 31 and the second electrode assembly 32 are provided with electrode plates 33. The electrode plates 33 and the buckle plate 47 are fixed with low-temperature solder.

[0029] As a further feature of the above scheme, the working indicator plate 5 includes a fixing plate 22 that is locked in a locking slot 21 on the dual-cavity protector housing 2. The flip plate 51 is hinged to the fixing plate 22 and swings in opposite directions. The dual-cavity protector housing 2 is also provided with a retaining slot 59 that is opposite to the unfolded position of the flip plate 51.

[0030] As a further provision of the above scheme, the L-line conductive assembly 7 includes an L-line interface 71, a first conductive piece 72, and a first clamping piece 73 located on the wiring base 1, and also includes a first insert 74 fixedly located inside the dual-cavity protector housing 2. One end of the first insert 74 extends out of the dual-cavity protector housing 2 and is positioned opposite the first clamping piece 73, while the other end is electrically connected to the tripping structure on the L-rod 44.

[0031] As a further provision of the above scheme, the N-line conductive component 8 includes an N-line interface 81, a second conductive piece 82, and a second clamping piece 83. It also includes a second insert 84, a second connecting piece 85, and a first connecting piece 88 fixedly disposed within the dual-cavity protector housing 2. One end of the second insert 84 extends out of the dual-cavity protector housing 2 and is positioned directly opposite the second clamping piece 83. The second insert 84 is also provided with a second slot 86 corresponding to the second connecting piece 85 and a first slot 87 corresponding to the first connecting piece 88. The first connecting piece 88 penetrates through the two cavities of the dual-cavity protector housing 2.

[0032] As a further feature of the above scheme, the PE wire conductive component 9 includes a PE wire interface 91, a third conductive piece 92 and a third clamping piece 93, and also includes a third insert 94 fixedly disposed inside the dual-cavity protector housing 2. One end of the third insert 94 extends out of the dual-cavity protector housing 2 and is positioned opposite the third clamping piece 93, while the other end is electrically connected to the tripping structure on the N rod 45.

[0033] As a further feature of the above scheme, the dual-trigger indicator 4 is red on at least the side of the indicator surface 41 facing the indicator window 6, and the working indicator plate 5 is green on at least the side facing the indicator window 6 after being flipped.

[0034] Example: The surge protector structure of this utility model has at least two major design features:

[0035] One example is the surge protector in this embodiment, which has a wiring base 1 that is snapped onto the equipment or mounting rail. A mounting groove is provided on the wiring base 1 for the snap-fit ​​installation of the dual-chamber protector housing 2. Figure 1 , Figure 2 as well as Figure 3 As shown, in this embodiment, the dual-cavity protector housing 2 extends from the bottom of the wiring base 1 with the first insert 74, the second insert 84, and the third insert 94, which correspond to the first clip 73, the second clip 83, and the third clip 93 in the slots provided on the wiring base 1, and electrically connect the two.

[0036] Inside the dual-cavity protector housing 2, a dual-trigger indicator rod 4 is also provided. This rod is divided into an L-rod 44 and an N-rod 45, and at least an indicator surface 41 is provided facing the indicator window 6. It is worth noting that the indicator window 6 in this embodiment is made of a transparent material, such as acrylic or transparent plastic, so that the internal color can be directly observed from the outside. Furthermore, a locking slot 21 and a fixing plate 22 are also provided on the dual-cavity protector housing 2 inside the indicator window 6, and one end of the working indicator plate 5 is locked in the locking slot 21. The other end of the working indicator plate 5 extends as a flip plate 51 that can swing relative to each other. In normal working condition, the dual-trigger indicator rod 4 is locked by the release structure and is located at the dead point of the stroke away from the indicator window 6. At this time, The flip plate 51 flips under its own weight, with its green side facing upwards towards the indicator window 6. At this time, when viewed from the outside, it is a normal, safe, green working condition. When a malfunction occurs, the low-temperature solder of the tripping structure melts instantly, releasing the tripping structure from the restriction of the double-trigger indicator rod 4. In normal operation, the spring 42, which was compressed and deformed by the double-trigger indicator rod 4, recovers its deformation. The released elastic force acts on the L rod 44 or N rod 45, causing it to move upwards and push open the flip plate 51 of the working indicator plate 5, folding it for storage and pushing the red indicator surface 41 below the indicator window 6. At this time, when viewed from the outside, it is a malfunctioning red condition, reminding the staff to perform inspection and maintenance.

[0037] Secondly, the surge protector of this embodiment includes a first electrode assembly 31 and a second electrode assembly 32, and L-line conductive assembly 7, N-line conductive assembly 8, and PE-line conductive assembly 9 respectively connected thereto. As shown in the figure, the L-line conductive assembly 7 includes an electrically connected L-line interface 71, a first conductive piece 72, and a first clip 73. A first insert 74 is inserted into the first clip 73 for conduction. The first insert 74 is connected to the electrode piece 33 of the first electrode assembly 31 through a conductive cable 70. The N-line conductive assembly 8 includes an electrically connected N-line interface 81, a second conductive piece 82, and a second clip 83. A second insert 84 is inserted into the second clip 83 for conduction. A first slot 87 and a second slot 86 are provided on the second insert 84. A second connecting piece 85 is inserted into the second slot 86 (with solder-assisted fixation) for connection. The other end of the second connecting piece 85 is connected to the first... On the other side of the electrode assembly 31, the electrode plate 33 has a first connecting piece 88 inserted into the first slot 87 (with solder-assisted fixation) for connection. The other end of the first connecting piece 88 is connected to one side of the electrode plate 33 on the second electrode assembly 32. The PE line conductive assembly 9 includes an electrical connection PE line interface 91, a third conductive piece 92, and a third clip 93. The third insert 94 is inserted into the third clip 93 for conduction. The third insert 94 is electrically connected to the other side of the electrode plate 33 on the second electrode assembly 32 through the conductive cable 70. It is worth noting that the three electrical conductors all pass through the tripping structure on the double trigger indicator rod 4. Through the above-mentioned wiring implementation, the surge protector of this embodiment improves the internal circuitry and achieves a total of three protection modes that can protect LN, L-PE, and N-PE. Compared with conventional protectors, its performance is better.

[0038] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A surge protector structure comprising a wiring base (1) and a double-cavity protector housing (2) which is electrically connected and installed in use relative to the wiring base (1), characterized in that: The double-cavity protector shell (2) is provided with a first electrode assembly (31) and a second electrode assembly (32), a double-trigger indicating rod (4) and a working indicating plate (5), the double-cavity protector shell (2) is provided with an indicating window (6), the working indicating plate (5) is provided with a turnover plate (51) located on one side of the indicating window (6) and hinged to swing relative to the indicating window (6), the double-trigger indicating rod (4) is provided with an indicating surface (41) located below the indicating window (6) and arranged, and the double-trigger indicating rod (4) abuts against the indicating window (6) at a dead point and opens the turnover plate (51), and when the double-trigger indicating rod (4) is retracted at a dead point, the turnover plate (51) swings to face the indicating window (6) and is displayed, the double-cavity protector shell (2) is further provided with an L-line conducting assembly (7), an N-line conducting assembly (8) and a PE-line conducting assembly (9) electrically connected with the first electrode assembly (31) and the second electrode assembly (32).

2. The surge protector structure of claim 1, wherein: The double-trigger indicating rod (4) comprises an L-rod (44) and an N-rod (45), and the L-rod (44) and the N-rod (45) are respectively arranged corresponding to a group of working indicating plates (5).

3. The surge protector structure of claim 1, wherein: The double-trigger indicating rod (4) is sleeved with a spring member (42), the spring member (42) is used for pushing the double-trigger indicating rod (4) to move towards the dead point, and the double-trigger indicating rod (4) is further provided with a tripping structure.

4. The surge protector structure of claim 3, wherein: The double-trigger indicating rod (4) is provided with a tripping groove (46), the tripping structure comprises a buckle plate (47) clamped in the tripping groove (46), the first electrode assembly (31) and the second electrode assembly (32) are provided with an electrode sheet (33), and the electrode sheet (33) and the buckle plate (47) are fixed by low-temperature soldering.

5. The surge protector structure of claim 1, wherein: The working indicating plate (5) comprises a fixed plate (22) clamped in a clamping block groove (21) arranged on the double-cavity protector shell (2), the turnover plate (51) is hinged to swing relative to the fixed plate (22), and the double-cavity protector shell (2) is further provided with a retaining groove (59) opposite to the unfolded position of the turnover plate (51).

6. The surge protector structure of claim 3, wherein: The L-line conducting assembly (7) comprises an L-line interface (71) arranged on a wiring base (1), a first conducting sheet (72) and a first clamping sheet (73), further comprises a first insertion sheet (74) fixedly arranged in the double-cavity protector shell (2), one end of the first insertion sheet (74) extends out of the double-cavity protector shell (2) and is arranged opposite to the first clamping sheet (73), and the other end is electrically connected with the tripping structure on the L-rod (44).

7. The surge protector structure of claim 3, wherein: The N wire conductive assembly (8) comprises an N wire interface (81), a second conductive sheet (82) and a second clamping sheet (83), further comprises a second insertion sheet (84), a second connecting sheet (85) and a first connecting sheet (88) fixedly arranged in the double-cavity protector shell (2), one end of the second insertion sheet (84) extends out of the double-cavity protector shell (2) and is arranged opposite to the second clamping sheet (83), the second insertion sheet (84) is further provided with a second insertion slot (86) corresponding to the second connecting sheet (85) and a first insertion slot (87) corresponding to the first connecting sheet (88), and the first connecting sheet (88) penetrates through the two cavities of the double-cavity protector shell (2).

8. The surge protector structure of claim 3, wherein: The PE wire conductive assembly (9) comprises a PE wire interface (91), a third conductive sheet (92) and a third clamping sheet (93), further comprises a third insertion sheet (94) fixedly arranged in the double-cavity protector shell (2), one end of the third insertion sheet (94) extends out of the double-cavity protector shell (2) and is arranged opposite to the third clamping sheet (93), and the other end is arranged in electrical connection with the tripping structure on the N rod (45).

9. The surge protector structure of claim 1, wherein: The double-trigger indication rod (4) is provided with at least one red indication surface (41) facing the indication window (6), and the working indication plate (5) is provided with at least one green surface (51) facing the indication window (6).

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