Detachable building block type active communication terminal strip protection device

Abstract

This utility model relates to the field of terminal block protection technology, specifically to a detachable modular active communication terminal block protection device. The terminal block includes a base, multiple terminal blocks arranged side-by-side on the base, and partitions between the terminal blocks. Each terminal block has a terminal socket. The protection device includes a first housing, a PCB board and a battery housed within the first housing, a microswitch mounted on the PCB board, a return spring located within the first housing and below the PCB board, a movable opening at the lower center of the first housing, and a movable block fixed to the lower end of the return spring and extending downward through the movable opening. The lower end of the first housing is inserted between adjacent partitions. The battery and the microswitch are electrically connected to the PCB board, with the microswitch located at the lower end of the PCB board and its sensing end pointing vertically downward. This device can protect the terminal block during maintenance, has a wide range of applications, and is flexible and convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of terminal block protection technology, specifically to a detachable modular active communication terminal block protection device. Background Technology

[0002] In the inspection and maintenance of power system relay protection, it is necessary to disconnect the secondary circuit terminal blocks. After the work is completed, they need to be restored in a timely manner. In order to prevent people from accidentally restoring these isolated measures during the work, and to make it clear which ones need to be restored after the work is completed, so as to avoid omissions, some tools need to be used for clear marking to avoid accidental restoration or failure to restore, which would affect personal safety and the stable operation of the power grid.

[0003] Currently, protective covers are commonly used for terminal blocks. However, these traditional protective tools are all of fixed size and cannot be used with terminal blocks of different models and sizes. Furthermore, they lack monitoring capabilities, and their protective status relies entirely on manual inspection. If the protective cover is removed improperly, accidentally falls off, or is forgotten to be installed, there is no real-time warning. This can easily lead to electric shock or short circuit accidents due to accidental contact with live parts, posing a serious threat to the safety of on-site personnel and equipment. Utility Model Content

[0004] To address the technical problems of existing terminal block protection devices having limited functionality, size, and applicability, this utility model provides a detachable modular active communication terminal block protection device. This device can protect the terminal block during maintenance, has a wide range of applications, and is flexible and convenient to use.

[0005] The technical solution adopted by this utility model is to provide a detachable modular active communication terminal block protection device. The terminal block includes a base, multiple terminal blocks arranged side by side on the base, and partitions arranged between the terminal blocks. The terminal blocks are provided with terminal sockets. The protection device includes a first housing, a PCB board and a battery disposed in the first housing, a micro switch disposed on the PCB board, a return spring disposed in the first housing and located below the PCB board, a movable opening disposed in the middle of the lower end of the first housing, and a movable block fixed to the lower end of the return spring and extending downward through the movable opening. The lower end of the first housing is inserted between adjacent partitions. The battery and the micro switch are both electrically connected to the PCB board. The micro switch is located at the lower end of the PCB board and the sensing end of the micro switch is vertically downward. The upper end of the return spring is fixed to the inner wall of the first housing, and the lower end is fixed to the upper end of the movable block. The upper end of the movable block corresponds to the sensing end of the micro switch, while the return spring does not correspond to the micro switch.

[0006] It also includes a mounting plate disposed inside the first housing and a clearance opening disposed on the mounting plate. The PCB board is disposed between the upper end of the mounting plate and the inner wall of the upper end of the first housing. The sensing end of the micro switch extends downward through the clearance opening. The upper end of the reset spring is fixed to the lower end of the mounting plate and located on one side of the clearance opening.

[0007] It also includes two plug-in posts located at the lower end of the first housing, which are respectively located on both sides of the movable opening and are respectively inserted into the terminal socket.

[0008] It also includes a plurality of second housings arranged side by side with the first housing, a first front slot and a first rear boss respectively vertically arranged on the front and rear end faces of the first housing, and a second front slot and a second rear boss respectively vertically arranged on the front and rear end faces of the second housing; the first front slot and the second front slot have the same structure and are through slot structures with open bottom ends, and the first rear boss and the second rear boss have the same structure and are adapted to both the first front slot and the second front slot.

[0009] Both the first front slot and the second front slot are constricted groove structures.

[0010] Both the first and second housings are n-type structures.

[0011] The beneficial effects of this utility model are that it provides a detachable modular active communication terminal block protection device, which can be set up in parallel according to the length of the terminal block. In the event of a false restoration, it can promptly remind maintenance personnel, effectively avoiding safety hazards. In addition, this design has a simple structure, low cost, flexible and convenient use, and a wide range of applications. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the first shell structure;

[0014] Figure 3 This is a schematic diagram of the internal structure of the first shell;

[0015] Figure 4 This is a schematic diagram of the second shell structure;

[0016] In the attached diagram, 1 is the first housing, 2 is the PCB board, 3 is the battery, 4 is the reset spring, 5 is the movable port, 6 is the movable block, 7 is the micro switch, 8 is the mounting plate, 9 is the plug post, 10 is the second housing, 11 is the first front slot, 12 is the first rear boss, 13 is the second front slot, 14 is the second rear boss, 21 is the terminal block, 22 is the partition, and 23 is the terminal socket. Detailed Implementation

[0017] like Figure 1-4 As shown, this utility model provides a detachable modular active communication terminal block protection device. The terminal block includes a base, multiple terminal blocks 21 arranged side by side on the base, and partitions 22 arranged between the terminal blocks 21. The terminal blocks 21 are provided with terminal sockets 23. The protection device includes a first housing 1, a PCB board 2 and a battery 3 disposed in the first housing 1, a micro switch 7 disposed on the PCB board 2, a return spring 4 disposed in the first housing 1 and located below the PCB board 2, a movable opening 5 disposed in the middle of the lower end of the first housing 1, and a movable block 6 fixed to the lower end of the return spring 4 and extending downward through the movable opening 5. The lower end of the first housing 1 is inserted between adjacent partitions 22. The battery 3 and the micro switch 7 are both electrically connected to the PCB board 2. The micro switch 7 is located at the lower end of the PCB board 2 and the sensing end of the micro switch 7 is vertically downward. The upper end of the return spring 4 is fixed to the inner wall of the first housing 1, and the lower end is fixed to the upper end of the movable block 6. The upper end of the movable block 6 corresponds to the sensing end of the micro switch 7, while the return spring 4 does not correspond to the micro switch 7.

[0018] like Figure 1 The terminal block structure shown is an existing technology. It mainly consists of a base, multiple terminal blocks 21 arranged side by side on the base, and partitions 22 arranged between the terminal blocks 21. Terminal sockets 23 are symmetrically arranged on the left and right sides of the terminal blocks 21. The base is not shown in the figure.

[0019] This utility model applies to the terminal block structure. The width of the first housing 1 is adapted to the width of the three adjacent partitions 22. The lower end of the first housing 1 is provided with a clearance groove corresponding to the second partition 22. In use, the first housing 1 is inserted between the first and third partitions 2 and clamped by the partitions 22. The second partition 22 enters the clearance groove. The micro switch 7 is electrically connected to the PCB board 2. When the first housing 1 is inserted, the movable block 6 in the movable opening 5 is pressed by the upper end of the second partition 22 and moves upward. The sensing end of the micro switch 7 becomes retracted after being pressed by the movable block 6.

[0020] When restoring the terminal block, the first housing 1 needs to be removed first. However, in case of accidental restoration, after the first housing 1 is removed, the movable block 6 is no longer pressed by the second partition 22 and moves downward under the action of the reset spring 4. The sensing end of the micro switch 7 is no longer pressed by the movable block 6 and changes from the retracted state to the extended state. After receiving the information that the state of the micro switch 7 has changed, the PCB board 2 will issue a warning in conjunction with the alarm module. The alarm module is not limited and can be selected according to the needs. For example, it can be an audible and visual alarm or directly transmitted to the terminal device of the staff via wireless communication.

[0021] This invention can promptly alert maintenance personnel when the terminal block is mistakenly restored, effectively preventing safety hazards. Furthermore, the design is simple in structure, low in cost, flexible and convenient in use, and has a wide range of applications. The alarm module or remote communication module on the PCB board are existing technologies and will not be specifically described or limited thereto.

[0022] The movable block 6 adopts a T-shaped structure. The lower part of the movable block 6 is adapted to the movable opening 5. The movable block 6 is limited in the movable opening 5 by the upper part, which is larger than the movable opening 5, so that the return spring 4 will not push the movable block 6 downward from the movable opening 5, so that the movable block 6 can move up and down more stably in the movable opening 5.

[0023] like Figure 2-3 As shown, it also includes a mounting plate 8 disposed inside the first housing 1 and a clearance opening disposed on the mounting plate 8. The PCB board 2 is disposed between the upper end of the mounting plate 8 and the inner wall of the upper end of the first housing 1. The sensing end of the micro switch 7 extends downward through the clearance opening. The upper end of the reset spring 4 is fixed to the lower end of the mounting plate 8 and is located on one side of the clearance opening.

[0024] The mounting plate 8 is installed in the middle of the first housing 1, which facilitates the installation and fixing of the PCB board 2 and the reset spring 4, making production and assembly more convenient.

[0025] like Figure 2-3 As shown, it also includes two plug-in pins 9 disposed at the lower end of the first housing 1, which are respectively located on both sides of the movable port 5 and are respectively inserted into the terminal socket 23.

[0026] A plug post 9 corresponding to and adapted to the terminal socket 23 is added to the first housing 1. In use, the plug post 9 is embedded in the corresponding terminal socket 23, and the outer wall of the plug post 9 abuts against the inner wall of the terminal socket 23. This can further improve the connection strength between the first housing 1 and the terminal block, and make the positioning more accurate and the use more convenient.

[0027] like Figure 1 , 4 As shown, it also includes a plurality of second housings 10 arranged side by side with the first housing 1, a first front slot 11 and a first rear boss 12 respectively vertically arranged on the front and rear end faces of the first housing 1, and a second front slot 13 and a second rear boss 14 respectively vertically arranged on the front and rear end faces of the second housings 10; the first front slot 11 and the second front slot 13 have the same structure and are through slot structures with open bottom ends, and the first rear boss 12 and the second rear boss 14 have the same structure and are adapted to the first front slot 11 and the second front slot 13.

[0028] The number of terminal blocks 21 on the base is determined according to actual needs. The number of terminal blocks 21 varies in different relay protection scenarios. Therefore, this design adds a second housing 10. The second housing 10 can be inserted between two adjacent partitions 22. In use, the number of second housings 10 used is selected according to the number of terminal blocks 21, that is, one first housing 1 and multiple second housings 10 are assembled and used. The same plug-in structure is designed between the second housing 10 and the first housing 1, and between the second housings 10. The first front slot 11 and the second front slot 13 are through slot structures with open bottom ends, that is, the upper end of the slot is not open. Therefore, during assembly, the first housing 1 and the second housing 10 can only be assembled first and then inserted into the terminal block. When restoring the terminal block, only the entire first housing 1 and the second housing 10 can be removed, and the second housing 10 cannot be removed separately. This can effectively protect the entire terminal block, making it more convenient, flexible, and applicable to a wide range of situations.

[0029] The first front slot 11 and the second rear boss 14 are adapted to each other, the second front slot 13 and the first rear boss 12 are adapted to each other, and the second front slot 13 and the second rear boss 14 are adapted to each other. The second housing 10 is assembled with the first housing 1 and adjacent second housings 10 using the same slot and boss insertion method, which is convenient for production and processing and simple for operation.

[0030] like Figure 1-4 As shown, both the first front slot 11 and the second front slot 13 are constricted groove structures.

[0031] When the second housing 10 is assembled onto the first housing 1, the upper end of the second housing 10 can only be slid upwards from the lower end of the first housing 1. During use, the second housing 10 cannot be pulled out separately, nor can it be moved laterally to detach from the first housing 1. This further improves the connection strength between the first housing 1 and the second housing 10, and further ensures the effective protection of the terminal block by the protective device, thereby improving the protection effect.

[0032] like Figure 1-4 As shown, both the first housing 1 and the second housing 10 have an n-type structure. This improves the compatibility of the first housing 1 and the second housing 10 with terminal blocks and makes them more convenient to use.

Claims

1. A detachable, building block type active communication terminal strip protection device, said terminal strip comprising a base, a plurality of terminal seats (21) arranged side by side on the base, and a partition (22) arranged between the terminal seats (21), said terminal seats (21) being provided with terminal sockets (23), characterized in that: The protective device includes a first housing (1), a PCB board (2) and a battery (3) disposed in the first housing (1), a micro switch (7) disposed on the PCB board (2), a reset spring (4) disposed in the first housing (1) and located below the PCB board (2), an movable opening (5) disposed in the middle of the lower end of the first housing (1), and a movable block (6) fixed to the lower end of the reset spring (4) and extending downward through the movable opening (5); The lower end of the first housing (1) is inserted between adjacent partitions (22). The battery (3) and the micro switch (7) are both electrically connected to the PCB board (2). The micro switch (7) is located at the lower end of the PCB board (2) and the sensing end of the micro switch (7) is vertically downward. The upper end of the reset spring (4) is fixed to the inner wall of the first housing (1) and the lower end is fixed to the upper end of the movable block (6). The upper end of the movable block (6) corresponds to the sensing end of the micro switch (7) and the reset spring (4) does not correspond to the micro switch (7).

2. The detachable modular active communication terminal block protection device according to claim 1, characterized in that: It also includes a mounting plate (8) disposed inside the first housing (1) and a clearance opening disposed on the mounting plate (8). The PCB board (2) is disposed between the upper end of the mounting plate (8) and the inner wall of the upper end of the first housing (1). The sensing end of the micro switch (7) extends downward through the clearance opening. The upper end of the reset spring (4) is fixed to the lower end of the mounting plate (8) and located on one side of the clearance opening.

3. The detachable modular active communication terminal block protection device according to claim 1, characterized in that: It also includes two plug-in posts (9) located at the lower end of the first housing (1), which are respectively located on both sides of the movable port (5) and are respectively inserted into the terminal socket (23).

4. The detachable modular active communication terminal block protection device according to claim 1, characterized in that: It also includes a plurality of second housings (10) arranged side by side with the first housing (1), a first front slot (11) and a first rear boss (12) respectively vertically arranged on the front and rear end faces of the first housing (1), and a second front slot (13) and a second rear boss (14) respectively vertically arranged on the front and rear end faces of the second housing (10); the first front slot (11) and the second front slot (13) have the same structure and are through slot structures with open bottom ends, and the first rear boss (12) and the second rear boss (14) have the same structure and are adapted to the first front slot (11) and the second front slot (13).

5. A detachable modular active communication terminal block protection device according to claim 4, characterized in that: Both the first front slot (11) and the second front slot (13) are constricted groove structures.

6. A detachable modular active communication terminal block protection device according to claim 4, characterized in that: Both the first shell (1) and the second shell (10) are n-type structures.

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