Terminal strip support for secondary wiring of low-voltage power control cabinet

Abstract

The invention discloses a terminal strip support for secondary butt wiring of a low-voltage power control cabinet, and relates to the field of terminal strip supports for secondary butt wiring, the terminal strip support comprises a plurality of layers of terminal strip supports detachably arranged in the power control cabinet, each layer of terminal strip support is composed of a U-shaped frame, and the U-shaped frame is provided with a U-shaped groove. A terminal assembly is arranged in the U-shaped frame, and the terminal assembly is connected between each meter and a measuring element in the power control cabinet. According to the terminal strip support for secondary wiring of the low-voltage power control cabinet, the wiring efficiency can be improved, disassembly, assembly and maintenance are convenient, rapid connection is achieved through magnetic adsorption positioning, and complex wiring and fixing are not needed; the terminal assembly designed in the invention replaces an exposed wiring terminal in the prior art, can realize rapid and stable connection between wires, prevents a wiring position from being in contact with air, avoids the phenomena of resistance increase, oxidation, burnout and electric sparks, and is high in safety.

Description

Technical Field

[0001] The invention relates to the field of terminal block brackets for secondary docking wires, and in particular to a terminal block bracket for secondary docking wires of a low-voltage power control cabinet. Background Art

[0002] The terminal block bracket on the low-voltage power control cabinet is usually installed to facilitate the wiring layout of production personnel, save internal space, and improve the wiring efficiency of on-site personnel.

[0003] However, control cabinets usually need to collect a lot of control, signal, measurement and other monitoring information, which leads to a large number of secondary terminals in each drawer and each cabinet. Conventional production layout plans make wiring difficult and prone to wrong connections, missed connections, and waste of work hours during production. In addition, the on-site wiring structure is relatively complex, resulting in low wiring efficiency.

[0004] Therefore, it is necessary to propose a terminal block bracket for secondary docking wires of a low-voltage power control cabinet to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a terminal block bracket for secondary docking wires of a low-voltage power control cabinet to solve the problems of difficult wiring, easy misconnection, missed connection, and waste of work time during production.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a terminal block bracket for secondary docking wires of a low-voltage power control cabinet, comprising a terminal block bracket, the terminal block bracket being detachably arranged inside the power control cabinet, the terminal block bracket being provided with multiple layers, the terminal block brackets of each layer being composed of a concave-shaped frame, a terminal assembly being provided in the concave-shaped frame, and the terminal assembly being connected between various meters and measuring elements inside the power control cabinet; The terminal assembly includes an insulating connecting plate, a first conductive wire, a second conductive wire and a conductive block. The insulating connecting plates are arranged in pairs, and a pair of insulating connecting plates are arranged up and down. The upper insulating connecting plate is movably attached to the upper inner wall of the terminal row bracket, and the lower insulating connecting plate is fixedly attached to the lower inner wall of the terminal row bracket. A spring is provided between the upper and lower insulating connecting plates. The upper insulating connecting plate is attached to the upper inner wall of the terminal row bracket by the supporting force of the spring. The conductive block is arranged inside the insulating connecting plate, and the second conductive wire is provided in the middle section of the first conductive wire. The resistance of the second conductive wire is higher than that of the first conductive wire.

[0007] Preferably, the upper and lower surfaces of the terminal block bracket are both provided with quick connection grooves, the quick connection grooves run through the inside and outside of the terminal block bracket, the insulating connection plates are provided corresponding to the quick connection grooves, and the length and width of the insulating connection plates are respectively greater than the length and width of the quick connection grooves; A pair of insulating connecting plates are each provided with a power connection hole on one side away from each other. There are multiple power connection holes, and the multiple power connection holes all penetrate the interior of the insulating connecting plates to the surface of the conductive block. The upper and lower ends of the first conductive wire are respectively electrically connected to the conductive blocks inside the upper and lower insulating connecting plates.

[0008] Preferably, the terminal assembly is provided with a first terminal block and a second terminal block above and below, the first terminal block and the second terminal block are distributed up and down, and a conductive sheet is provided on the side of the first terminal block and the second terminal block close to each other, and the conductive sheet is used for wire connection.

[0009] Preferably, the first conductive wire on each meter and measuring element is fixedly connected to the first terminal block, and the first conductive wire is conductively connected to the conductive sheet on the first terminal block; a power connection post conductively connected to the conductive sheet is provided below the second terminal block, and a plurality of power connection posts are provided, which are engaged in the corresponding power connection holes.

[0010] Preferably, the upper surface of the second wiring board and the lower surface of the first wiring board are both provided with sealing gaskets, and magnetic rings are provided in the sealing gaskets. The magnetic rings are adsorbed and fixed to each other, and the magnetic rings are also adsorbed and fixed in the quick connection groove.

[0011] Preferably, a wiring slot and a sealing ring are provided on the surfaces of the first wiring board and the second wiring board that are close to each other, and the sealing ring is fixedly provided on the inner wall of the wiring slot.

[0012] Preferably, a first conductive wire is connected to the wiring slot, and the copper wires are distributed in a fan shape after the insulation skin of the end of the first conductive wire or the second conductive wire is peeled off.

[0013] Preferably, the quick connection slot is further provided with a wire restraining slot near the front side of the concave-shaped frame, and the inner wall of the wire restraining slot is painted with red paint; rubber strips are fitted at the upper and lower positions of the front side of the concave-shaped frame, the rubber strips are elastic, and the rubber strips are distributed along the length direction of the terminal row bracket, and the rubber strips are fixed on the terminal row bracket.

[0014] Preferably, an elastic insulating sleeve is provided between the upper and lower insulating connecting plates, and the elastic insulating sleeve is provided to protect the first conductive wire, the second conductive wire and the outside of the spring.

[0015] Preferably, the outer surface of the upper insulating connecting plate is painted red.

[0016] Technical effects and advantages of the present invention: 1. The terminal block bracket for the secondary docking line of the low-voltage power control cabinet can increase wiring efficiency and facilitate disassembly and maintenance. It can be quickly connected through magnetic adsorption positioning without the need for complicated wiring and fixing; 2. The terminal block bracket is set with multiple layers. Based on the multi-layer setting, it is very convenient to connect the various meters and measuring components at different positions inside the power control cabinet with the shortest distance. The terminal block bracket can be standardized and customized, suitable for different models of power control cabinets, with strong applicability; 3. The wires connected to each meter and measuring element can be connected to the terminal assembly from the corresponding quick connection slot. The connection is simple, convenient and well-organized. The wires can also be distributed along the wire binding slot so that the wires are bound and adjacent wires will not be entangled or interfere with each other. 4. The inner wall of the wire binding groove is painted with red paint. When the wire is engaged in the wire binding groove, the red paint is blocked by the wire and is not obvious. When no wire is installed in the wire binding groove, the conspicuous red paint can be clearly seen, which can quickly indicate and determine which wire is missing, further improving wiring efficiency. 5. First, pass the wire through the rubber strip and the wire binding groove, press the wire with the rubber strip, and then proceed with the wiring. When handling the insulation skin at the end of the wire, there is no need to prevent the wire from falling off in real time, which is particularly suitable for efficient wiring operations; 6. When the second conductive wire is disconnected, the circuit is completely disconnected. There will be no continuous excessive current or intermittent current. It also avoids the problem of damage to each meter and measuring element, reducing losses. 7. The terminal assembly designed in the present invention replaces the exposed terminal in the prior art, which can achieve fast and stable connection between wires while preventing the connection from coming into contact with air, thus avoiding the occurrence of resistance increase, oxidation, burning, and electric sparks, and has strong safety. 8. Whether replacing the terminal assembly alone or the various meters or measuring elements above and below the terminal assembly, there is no need to disassemble or assemble other positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of the terminal block bracket for the secondary docking wires of the low-voltage power control cabinet from one perspective of the present invention.

[0018] Figure 2 This is a structural schematic diagram of the terminal block bracket for the secondary docking wires of the low-voltage power control cabinet from another perspective of the present invention.

[0019] Figure 3 This is a schematic diagram of the terminal block bracket structure of the present invention.

[0020] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the structure in the middle.

[0021] Figure 5 This is a structural schematic diagram showing the internal hidden lines of the terminal block bracket of the present invention.

[0022] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at point B in the middle.

[0023] Figure 7 It is a schematic diagram of the internal structure of the terminal block bracket of the present invention.

[0024] Figure 8 This is a cross-sectional view of the terminal block bracket of the present invention.

[0025] Figure 9 This is a structural diagram of the first wiring method on the terminal block bracket of the present invention.

[0026] Figure 10 This is a structural schematic diagram of the second wiring board from one perspective of the present invention.

[0027] Figure 11 This is a structural schematic diagram of the second wiring board of the present invention from another perspective.

[0028] Figure 12 This is a structural diagram of the second wiring method on the terminal block bracket of the present invention.

[0029] Figure 13 For the present invention Figure 12 Schematic diagram of the connection between the first and second terminal blocks. In the figure: 1. Power control cabinet; 2. Terminal block bracket; 3. Quick-connect slot; 4. Wire tie slot; 5. Cover; 6. Clamping slot; 7. Rubber strip; 8. Insulating connecting plate; 9. Power connection hole; 10. Elastic insulating sleeve; 11. First conductive wire; 12. Second conductive wire; 13. Spring; 14. Conductive block; 15. First terminal block; 16. Second terminal block; 17. First conductive wire; 18. Conductive sheet; 19. Terminal slot; 20. Sealing ring; 21. Sealing gasket; 22. Power connection post; 23. Second conductive wire; 24. Copper wire. DETAILED DESCRIPTION

[0030] The present invention provides Figures 1-13 The terminal block bracket for the secondary docking wires of a low-voltage power control cabinet is shown. The terminal block bracket for the secondary docking wires of the low-voltage power control cabinet can increase wiring efficiency and facilitate disassembly and maintenance. In the present invention, "low voltage" refers to an electric power system in which the voltage level of the power control cabinet is lower than 1000V.

[0031] refer to Figure 1 and Figure 2As shown in the figure, the terminal block bracket 2 is installed inside the power control cabinet 1. The various meters and measuring elements inside the power control cabinet 1 are distributed in different positions. The various meters and measuring elements at the upper and lower positions are usually directly connected by wires, and the wire connections usually use conventional terminal block adapters. The wire ends need to be fixed by thread spinning to complete the installation, which is inefficient and can easily cause the wiring parts that have been connected on the side to loosen during operation.

[0032] refer to Figure 3 As shown in the figure, the terminal block bracket 2 is a frame structure, and the terminal block bracket 2 is provided with multiple layers. Based on the multi-layer setting, the various meters and measuring elements at different positions inside the power control cabinet 1 can be conveniently connected with the shortest distance, and the terminal block bracket 2 can be standardized and customized, and is suitable for different models of power control cabinets 1, with strong applicability.

[0033] refer to Figures 4 to 6 As shown in the figure, the terminal block bracket 2 is mainly composed of a concave-shaped frame, and the upper and lower surfaces of the front side of the concave frame are provided with card slots 6, and a cover 5 is provided at the front opening of the concave frame. The upper and lower sides of the cover 5 are respectively engaged in the card slots 6 at the upper and lower positions, and the upper and lower surfaces of the terminal block bracket 2 are provided with quick connection grooves 3. The quick connection grooves 3 run through the inside and outside of the terminal block bracket 2, and the quick connection grooves 3 are also provided with wire binding grooves 4 near the front side of the concave frame; when it is necessary to connect each meter and measuring element, the terminal assembly is installed in the terminal block bracket 2, and the wires connected to each meter and measuring element can be connected to the terminal assembly from the corresponding quick connection grooves 3 respectively. The connection is simple, convenient, and well-organized. The wires can also be distributed along the wire binding grooves 4 so that the wires are bound and adjacent wires will not be entangled or interfere with each other.

[0034] Furthermore, the inner wall of the wire binding groove 4 is painted with red paint. When the wire is engaged in the wire binding groove 4, the red paint is blocked by the wire and is not obvious. When no wire is installed in the wire binding groove 4, the conspicuous red paint can be clearly seen, which can quickly display and determine which wire is missing, further improving wiring efficiency.

[0035] refer to Figure 7As shown in the figure, rubber strips 7 are fitted at the upper and lower positions on the front side of the concave frame. The rubber strips 7 are elastic and are distributed along the length direction of the terminal block bracket 2. The rubber strips 7 are fixed on the terminal block bracket 2, and the position of the rubber strips 7 corresponding to the wire restraining groove 4 can be stretched outward, so that a distance is generated between the rubber strips 7 and the terminal block bracket 2. The rubber strips 7 are used to preliminarily limit the position of the wires without affecting the installation and passing of the wires. Specifically, the wires can be passed between the rubber strips 7 and the wire restraining grooves 4 first, and the wires can be pressed by the rubber strips 7 first, and then the wiring is carried out. When handling the insulation skin at the end of the wires, there is no need to prevent the wires from falling off in real time, which is particularly suitable for efficient wiring operations.

[0036] refer to Figure 7 and Figure 8 As shown in the figure, the terminal assembly includes an insulating connecting plate 8, a first conductive wire 11, a second conductive wire 12 and a conductive block 14. The insulating connecting plates 8 are arranged in pairs, and a pair of insulating connecting plates 8 are arranged up and down. The upper insulating connecting plate 8 is movably fitted on the upper inner wall of the terminal block bracket 2, and the lower insulating connecting plate 8 is fixedly fitted on the lower inner wall of the terminal block bracket 2. The insulating connecting plate 8 corresponds to the quick connection groove 3, and the length and width of the insulating connecting plate 8 are respectively greater than the length and width of the quick connection groove 3. A spring 13 is provided between the upper and lower insulating connecting plates 8, and the upper insulating connecting plate 8 is fixedly fitted on the lower inner wall of the terminal block bracket 2. The connecting plate 8 is attached to the upper inner wall of the terminal block bracket 2 by the supporting force of the spring 13. The conductive block 14 is arranged inside the insulating connecting plate 8. A pair of insulating connecting plates 8 are provided with power connection holes 9 on the side away from each other. There are multiple power connection holes 9, and the multiple power connection holes 9 all penetrate the interior of the insulating connecting plate 8 to the surface of the conductive block 14. The upper and lower ends of the first conductive wire 11 are respectively electrically connected to the conductive blocks 14 inside the upper and lower insulating connecting plates 8. The middle section of the first conductive wire 11 is provided with a second conductive wire 12, and the resistance of the second conductive wire 12 is slightly higher.

[0037] The wires on each meter and measuring element are electrically connected to the upper and lower insulating connecting plates 8 respectively to achieve the connection purpose; because the resistance of the second conductive wire 12 is slightly high, when the current or voltage in the circuit is too large, the second conductive wire 12 will burn out. Since the second conductive wire 12 is arranged horizontally, after the second conductive wire 12 breaks, the spring 13 can pull the corresponding insulating connecting plate 8 above it down, so that the insulating connecting plate 8 is completely separated from the connection between the wires of each meter and measuring element, disconnecting the circuit, avoiding the existing fuse similar to the second conductive wire 12. After breaking, it will still continue to burn due to the factors such as the close distance between the wires or the fuse itself still overlapping after breaking. That is, when the second conductive wire 12 is disconnected, the circuit is completely disconnected, and there will be no continuous excessive current or intermittent current. It also avoids the problem of damage to each meter and measuring element, reducing losses.

[0038] In the present invention, an elastic insulating sleeve 10 is further provided on the outside of the first conductive wire 11. The upper and lower ends of the elastic insulating sleeve 10 are respectively fixedly connected to the upper and lower insulating connecting plates 8. The elastic insulating sleeve 10 can be elastically deformed without affecting the lowering of the upper insulating connecting plate 8. The elastic insulating sleeve 10 also serves the purpose of protecting the outside of the first conductive wire 11, the second conductive wire 12 and the spring 13.

[0039] refer to Figures 9 to 11 As shown in the figure, the present invention provides a connection method for each meter and the measuring element; specifically, it includes a first terminal block 15 and a second terminal block 16, the first terminal block 15 and the second terminal block 16 are distributed up and down, and the first terminal block 15 and the second terminal block 16 are provided with a conductive sheet 18 on the side close to each other, and the conductive sheet 18 is used for wire connection.

[0040] Among them, the first conductive wire 17 on each meter and measuring element is fixedly connected to the first terminal block 15, and the first conductive wire 17 is conductively connected to the conductive sheet 18 on the first terminal block 15; a connection post 22 conductively connected to the conductive sheet 18 is provided below the second terminal block 16, and a plurality of connection posts 22 are provided. The connection posts 22 can be snapped into the corresponding connection holes 9, thereby achieving the purpose of conductive connection between the first conductive wire 17 and the conductive block 14.

[0041] A sealing gasket 21 is provided on the upper surface of the second terminal block 16 and the lower surface of the first terminal block 15. A magnetic ring is provided in the sealing gasket 21. The magnetic rings can be adsorbed and fixed to each other, and the magnetic ring can also be adsorbed and fixed in the quick connection groove 3, so that the first terminal block 15 and the second terminal block 16 can be overlapped with each other and stably fixed in the quick connection groove 3. They are quickly connected through magnetic adsorption positioning without the need for complicated wiring and fixation.

[0042] Furthermore, wiring slots 19 and sealing rings 20 are provided on the sides of the first terminal block 15 and the second terminal block 16 that are close to each other. The sealing ring 20 is fixedly provided on the inner wall of the wiring slots 19. When more meters and measuring elements need to be connected to the corresponding terminal assemblies, the conductive skins of the meters and measuring elements can be peeled off, and then the conductive copper wires 24 are distributed in a fan shape and pressed between the first terminal block 15 and the second terminal block 16. The copper wires 24 are quickly fixed due to the pressing action of the first terminal block 15 and the second terminal block 16, without the need for screw tightening or other twisting methods, thereby achieving the purpose of quick wiring.

[0043] refer to Figures 12 to 13As shown in , when more meters and measuring elements need to be connected, a notch can be further provided on the side of the quick connection slot 3, and wiring slot holes 19 are provided at both ends of the first wiring board 15 and the second wiring board 16. The two wiring slot holes 19 can be connected to the first conductive wire 17 and the second conductive wire 23 respectively, thereby realizing more connection methods, and the copper wires 24 at the ends of the first conductive wire 17 and the second conductive wire 23 are distributed in a fan shape.

[0044] Among them, the second conductive wire 23 moves in sequence through the wire binding groove 4, the card slot 6 and the rubber strip 7, and then extends from the upper side of the rubber strip 7 away from the quick connection groove 3, so that the second conductive wire 23 can be positioned and bundled before the cover 5 is closed to avoid the cables from being entangled with each other. Then the cover 5 can be closed. It should be noted that a gap is provided on the cover 5 for the second conductive wire 23 to pass through. This is a common design and will not be described here. The distribution method of the second conductive wire 23 in the present invention can increase the strength of the connection of the second conductive wire 23 and avoid the second conductive wire 23 falling off or poor contact.

[0045] As a further improvement, the terminal assembly designed in the present invention replaces the exposed terminal in the prior art, which can achieve fast and stable connection between wires while preventing the connection point from coming into contact with the air, thus avoiding the occurrence of resistance increase, oxidation, burning, and electric sparks, and has strong safety. As an extension, when the terminal assembly at the connection point is damaged, the spring 13 pulls the upper insulating connecting plate 8 down, and the outer surface of the upper insulating connecting plate 8 is painted with red or other conspicuous colors, so that it can be clearly observed which terminal assembly is damaged, which is convenient for quick replacement and maintenance. Whether replacing the terminal assembly alone or the various meters or measuring elements above and below the terminal assembly, there is no need to disassemble other positions, that is: when the terminal assembly is removed, the second terminal plates 16 above and below the terminal assembly are still fixed in the corresponding quick connection slots 3, and the connection point does not need to be adjusted, which is simple and convenient.

Claims

1. A terminal block bracket for secondary docking wires of a low-voltage power control cabinet, comprising a terminal block bracket (2), characterized in that: The terminal block bracket (2) is detachably arranged inside the power control cabinet (1), and the terminal block bracket (2) is provided with multiple layers, and the terminal block bracket (2) of each layer is composed of a concave-shaped frame, and a terminal assembly is provided in the concave-shaped frame, and the terminal assembly is connected between various meters and measuring elements inside the power control cabinet (1); The terminal assembly comprises an insulating connecting plate (8), a first conductive wire (11), a second conductive wire (12) and a conductive block (14). The insulating connecting plates (8) are arranged in pairs, and a pair of insulating connecting plates (8) are arranged up and down. The upper insulating connecting plate (8) is movably attached to the upper inner wall of the terminal row bracket (2), and the lower insulating connecting plate (8) is fixedly attached to the lower inner wall of the terminal row bracket (2). A spring (13) is provided between the upper and lower insulating connecting plates (8). The upper insulating connecting plate (8) is attached to the upper inner wall of the terminal row bracket (2) by the supporting force of the spring (13). The conductive block (14) is provided inside the insulating connecting plate (8). The middle section of the first conductive wire (11) is provided with a second conductive wire (12). The resistance of the second conductive wire (12) is higher than the resistance of the first conductive wire (11).

2. A terminal block bracket for secondary docking wires of a low-voltage power control cabinet according to claim 1, characterized in that: The upper surface and the lower surface of the terminal block bracket (2) are both provided with a quick connection groove (3), the quick connection groove (3) runs through the inside and outside of the terminal block bracket (2), the insulating connection plate (8) is provided corresponding to the quick connection groove (3), and the length and width of the insulating connection plate (8) are respectively greater than the length and width of the quick connection groove (3); A pair of insulating connecting plates (8) are provided with power connection holes (9) on the sides away from each other. A plurality of power connection holes (9) are provided. The plurality of power connection holes (9) all penetrate the interior of the insulating connecting plates (8) and reach the surface of the conductive block (14). The upper and lower ends of the first conductive wire (11) are respectively electrically connected to the conductive blocks (14) inside the upper and lower insulating connecting plates (8).

3. A terminal block bracket for secondary docking wires of a low-voltage power control cabinet according to claim 2, characterized in that: The terminal assembly is provided with a first wiring board (15) and a second wiring board (16) on the upper and lower sides. The first wiring board (15) and the second wiring board (16) are distributed up and down. A conductive sheet (18) is provided on the side of the first wiring board (15) and the second wiring board (16) close to each other. The conductive sheet (18) is used for wire connection.

4. A terminal block bracket for secondary docking wires of a low-voltage power control cabinet according to claim 3, characterized in that: The first conductive wire (17) on each meter and measuring element is fixedly connected to the first terminal board (15), and the first conductive wire (17) is conductively connected to the conductive sheet (18) on the first terminal board (15); a power connection post (22) conductively connected to the conductive sheet (18) is provided below the second terminal board (16), and a plurality of power connection posts (22) are provided, and the power connection posts (22) are engaged in corresponding power connection holes (9).

5. The terminal block bracket for secondary connection wires of a low-voltage power control cabinet according to claim 4, characterized in that: The upper surface of the second terminal block (16) and the lower surface of the first terminal block (15) are both provided with a sealing gasket (21), and a magnetic ring is provided in the sealing gasket (21). The magnetic rings are fixed to each other by adsorption, and the magnetic ring is also fixed to the quick connection groove (3).

6. The terminal block bracket for secondary connection wires of a low-voltage power control cabinet according to claim 3, characterized in that: A wiring slot (19) and a sealing ring (20) are provided on the mutually adjacent sides of the first wiring board (15) and the second wiring board (16), and the sealing ring (20) is fixedly arranged on the inner wall of the wiring slot (19).

7. A terminal block bracket for secondary connection wires of a low-voltage power control cabinet according to claim 6, characterized in that: The wiring slot (19) is connected to a first conductive wire (17), and after the insulation skins at the ends of the first conductive wire (17) and the second conductive wire (23) are peeled off, the copper wires (24) are distributed in a fan shape.

8. The terminal block bracket for secondary connection wires of a low-voltage power control cabinet according to claim 2, characterized in that: The quick connection slot (3) is also provided with a wire binding slot (4) near the front side of the concave frame, and the inner wall of the wire binding slot (4) is painted with red paint; rubber strips (7) are fitted at the upper and lower positions of the front side of the concave frame, and the rubber strips (7) are elastic and distributed along the length direction of the terminal block bracket (2), and the rubber strips (7) are fixed to the terminal block bracket (2).

9. The terminal block bracket for secondary connection wires of a low-voltage power control cabinet according to claim 1, characterized in that: An elastic insulating sleeve (10) is provided between the upper and lower insulating connecting plates (8), and the elastic insulating sleeve (10) is also provided to protect the outside of the first conductive wire (11), the second conductive wire (12) and the spring (13).

10. The terminal block bracket for secondary connection wires of a low-voltage power control cabinet according to claim 1, characterized in that: The outer surface of the upper insulating connecting plate (8) is painted red.

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