Low voltage switchgear assembly wiring system with reduced electromagnetic interference

Abstract

The utility model relates to low -voltage complete switch equipment technical field especially relates to a low -voltage complete switch equipment wiring system that reduces electromagnetic interference, including cabinet, wire material buckle, the both sides of cabinet are provided with side plate, and the side plate is opened to have mounting hole, and one side of side plate is provided with first shield plate, and one side of two groups first shield plate is provided with second shield plate, and the inboard of two groups first shield plate is provided with wire material buckle, and the junction of first shield plate and side plate is provided with connecting piece also, the utility model discloses through the mounting hole of side plate and is opened, and first shield plate, second shield plate and wire material buckle are connected and fixed with side plate through connecting piece, and first shield plate and second shield plate form the box -pack structure and provide the wire material of internal space with electromagnetic shielding protection, and wire material buckle carries out the fixed wire material, and single wire material is fixed in shielding space, to separate wire material apart and set up shielding structure, prevent the electromagnetic interference between wire material, and the establishment of mounting hole can also improve the ventilation heat dissipation capacity of side plate.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage switchgear technology, and in particular to a wiring system for low-voltage switchgear that reduces electromagnetic interference. Background Technology

[0002] Low-voltage switchgear is suitable for AC three-phase four-wire and three-phase five-wire systems with a rated operating voltage of 380V. It is used for power receiving, power feeding, power compensation, power metering, lighting and centralized control of motors in power plants, substations, industrial and mining enterprises and high-rise buildings.

[0003] Low-voltage switchgear contains a large number of wires. To prevent electromagnetic interference from the electromagnetic fields generated by the movement of electrical equipment, low-voltage switchgear is often equipped with a cable management space to house all the wires. Shielding covers are used to cover the wires for electromagnetic shielding, preventing data loss or disorder in signal lines and other data cables.

[0004] Currently, the cable management space and shielding installation position of low-voltage switchgear are fixed, and all cables are piled up together. This not only makes it difficult to find cables, but also the power cables generate electromagnetic fields during use. Signal cables will also be interfered with when piled up with power cables. At the same time, the accumulation of cables will also lead to heat accumulation, which may affect the use of cables or even cause a fire. Utility Model Content

[0005] To overcome the problem of most low-voltage switchgear assemblies having all their wires piled up together, which not only makes finding wires more difficult, but also causes interference when signal wires and power wires are piled up together, and also leads to heat accumulation.

[0006] The technical solution of this utility model is as follows: a wiring system for low-voltage switchgear to reduce electromagnetic interference, including a cabinet and wire clips. Side panels are provided on both sides of the cabinet, and mounting holes are provided on the side panels. A first shielding plate for shielding electromagnetic interference is provided on one side of the side panel, and a second shielding plate for shielding electromagnetic interference is provided on one side of the two sets of first shielding plates. Wire clips for fixing wires are provided on the inner side of the two sets of first shielding plates. Connectors are provided at the connection between the wire clips and the side panels, and connectors are also provided at the connection between the first shielding plates and the side panels. The connectors are spliced ​​and fixed to the wire clips or the first shielding plates. The mounting holes are square holes, and the distance between the mounting holes and the adjacent mounting holes on the top, bottom, left, and right is consistent. The first shielding plates and the cabinet are equipped with ground wires.

[0007] Preferably, the wire clip is semi-circular, with a connecting foot at the cross-section of the semi-circle, and the wire clip and the connecting foot are injection molded as one piece.

[0008] Preferably, a mounting foot is provided on one side of the first shielding plate. The mounting foot is made of sheet metal bent in the same direction.

[0009] Preferably, a buckle is provided on one side of the connector, and a connecting groove is provided on the side of the connector away from the buckle. The connecting groove has an L-shaped cross-section, and the depth of the connecting groove is consistent with the height of the connecting foot and the support foot.

[0010] Preferably, the first shielding plate has a first ventilation slot, the second shielding plate has a second ventilation slot, and the side of the first shielding plate away from the mounting feet has a wire-passing slot to facilitate the wires to pass through.

[0011] Preferably, a mounting base is provided on the side of the first shielding plate away from the mounting feet. The mounting base is made of sheet metal and has an embedding groove on its upper part. An embedding rod is provided at the connection between the second shielding plate and the embedding groove, and a limit block is provided at one end of the embedding rod.

[0012] Preferably, the two sets of mounting bases at the same location are staggered in height and bent in opposite directions, and the embedded rods are set to be higher on the left and lower on the right, depending on the mounting bases.

[0013] The beneficial effects of this utility model are:

[0014] By creating mounting holes in the side panel, the first shielding plate, the second shielding plate, and the wire clips are connected and fixed to the side panel via connectors. The first and second shielding plates form a box-like structure to provide electromagnetic shielding protection for the wires inside the space. The wire clips fix the wires, securing each individual wire within the shielded space, thereby separating the wires and setting up a shielding structure to prevent electromagnetic interference between them. The mounting holes also improve the ventilation and heat dissipation capacity of the side panel. Furthermore, users can freely adjust the position of the connectors according to actual conditions, thereby adjusting the position and number of the first shielding plate, the second shielding plate, and the wire clips. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0016] Figure 2 The diagram shown is a three-dimensional structural schematic of the side plate of this utility model.

[0017] Figure 3 The diagram shown is a three-dimensional structural schematic of the first shielding plate of this utility model.

[0018] Figure 4 The diagram shown is a three-dimensional structural schematic of the connector of this utility model.

[0019] Figure 5 The diagram shown is a three-dimensional structural schematic of the second shielding plate of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Cabinet; 101. Side panel; 102. Mounting hole; 2. First shielding plate; 201. Cable tray; 202. First ventilation slot; 203. Mounting leg; 204. Mounting base; 205. Embedded slot; 3. Second shielding plate; 301. Second ventilation slot; 302. Embedded rod; 303. Limiting block; 4. Cable clip; 401. Connecting leg; 5. Connector; 501. Buckle; 502. Connecting slot. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-5 This utility model provides an embodiment of a low-voltage switchgear wiring system for reducing electromagnetic interference, comprising a cabinet 1 and wire clips 4. Side panels 101 are provided on both sides of the cabinet 1, each with mounting holes 102. A first shielding plate 2 for shielding electromagnetic interference is provided on one side of each side panel 101, and a second shielding plate 3 for shielding electromagnetic interference is provided on one side of each of the two sets of first shielding plates 2. Wire clips 4 for fixing wires are provided on the inner sides of the two sets of first shielding plates 2. Connectors 5 are provided at the connection points between the wire clips 4 and the side panels 101, and also at the connection points between the first shielding plates 2 and the side panels 101. The connectors 5 are spliced ​​and fixed to the wire clips 4 or the first shielding plates 2. The mounting holes 102 are square holes, and the mounting holes 102 are adjacent to the top, bottom, left, and right sides... The mounting holes 102 are spaced evenly, and the first shielding plate 2 and the cabinet 1 are equipped with ground wires. By opening mounting holes 102 in the side plate 101 as connection holes, the first shielding plate 2, the second shielding plate 3, and the wire clip 4 are connected and fixed to the side plate 101 through the connector 5. The first shielding plate 2 and the second shielding plate 3 form a box structure to provide electromagnetic shielding protection for the wires in the internal space. The wire clip 4 fixes the wires, fixing a single wire in the shielding space, thereby separating the wires and setting up a shielding structure to prevent electromagnetic interference between the wires. The opening of the mounting holes 102 can also improve the ventilation and heat dissipation capacity of the side plate 101. Furthermore, the user can freely adjust the position of the connector 5 according to the actual situation, thereby adjusting the position and number of the first shielding plate 2, the second shielding plate 3, and the wire clip 4.

[0023] Please see Figure 4In this embodiment, the wire clip 4 is semi-circular, and a connecting foot 401 is provided at the cross-section of the semi-circle. The wire clip 4 and the connecting foot 401 are integrally injection molded. A mounting foot 203 is provided on one side of the first shielding plate 2. The mounting foot 203 is formed by bending sheet metal and the bending direction is consistent. A buckle 501 is provided on one side of the connector 5. A connecting groove 502 is provided on the side of the connector 5 away from the buckle 501. The connecting groove 502 has an L-shaped cross-section, and the depth of the connecting groove 502 is the same as that of the connecting foot 401 and the mounting foot 203. Assume the height of the feet 203 is consistent. During installation, first insert the connecting foot 401 into the connecting groove 502, connect the wire clip 4 to the connector 5, and after snapping the two sets of clips 501 of the same set of connectors 5 into the same mounting hole 102, the connector 5 is connected and fixed to the side plate 101, thereby fixing the wire clip 4 to the side plate 101 to fix the single wire. After connecting the connector 5 at the mounting foot 203, install the two sets of first shielding plates 2 in the space on both sides of the wire clip 4.

[0024] Please see Figure 5 In this embodiment, a mounting base 204 is provided on the side of the first shielding plate 2 away from the mounting foot 203. The mounting base 204 is formed by bending sheet metal. An embedding groove 205 is provided on the upper part of the mounting base 204. An embedding rod 302 is provided at the connection between the second shielding plate 3 and the embedding groove 205. A limiting block 303 is provided at one end of the embedding rod 302. The two sets of mounting bases 204 at the same location are staggered in height and bent in opposite directions. The embedding rod 302 is set to be higher and lower on the left and right sides according to the mounting base 204. After aligning the embedding rod 302 with the embedding groove 205, it is inserted downward so that the embedding rod 302 is inserted vertically into the embedding groove 205. The limiting block 303 prevents the embedding rod 302 from separating from the embedding groove 205, thereby connecting the second shielding plate 3 and the first shielding plate 2.

[0025] Please see Figures 4-5 In this embodiment, the first shielding plate 2 has a first ventilation slot 202, and the second shielding plate 3 has a second ventilation slot 301. The side of the first shielding plate 2 away from the mounting foot 203 has a wire-passing groove 201 to facilitate the wire passing through. The second ventilation slot 301 and the first ventilation slot 202 facilitate the air circulation inside and outside the shielding space formed by the first shielding plate 2 and the second shielding plate 3, preventing the accumulation of heat in the wire. The wire-passing groove 201 facilitates the wire passing through the shielding space.

[0026] During installation, first insert the connecting foot 401 into the connecting groove 502, connect the wire clip 4 to the connector 5, and after fastening the two sets of clips 501 of the same set of connector 5 into the same mounting hole 102, the connector 5 is connected and fixed to the side plate 101, thereby fixing the wire clip 4 to the side plate 101 to fix a single wire. After connecting the connector 5 at the mounting foot 203, install the two sets of first shielding plates 2 in the space on both sides of the wire clip 4. Then, align the embedding rod 302 with the embedding groove 205 and insert it downwards, so that the embedding rod 302 is vertically inserted into the embedding groove 205. The limiting block 303 prevents the embedding rod 302 from separating from the embedding groove 205, thereby connecting the second shielding plate 3 to the first shielding plate 2.

[0027] In use, the first shielding plate 2 and the second shielding plate 3 form a box structure to provide electromagnetic shielding protection for the wires in the internal space. The wire clip 4 fixes the wires and secures each wire in the shielding space, thereby separating the wires and setting up a shielding structure to prevent electromagnetic interference between the wires.

[0028] Through the above steps, by opening mounting holes 102 in the side plate 101 as connection positions, the first shielding plate 2, the second shielding plate 3, and the wire clip 4 are connected and fixed to the side plate 101 via the connector 5. The first shielding plate 2 and the second shielding plate 3 form a box structure to provide electromagnetic shielding protection for the wires in the internal space. The wire clip 4 fixes the wires, fixing a single wire in the shielding space, thereby separating the wires and setting up a shielding structure to prevent electromagnetic interference between the wires. The opening of mounting holes 102 can also improve the ventilation and heat dissipation capacity of the side plate 101. Furthermore, the user can freely adjust the position of the connector 5 according to the actual situation, thereby adjusting the position and number of the first shielding plate 2, the second shielding plate 3, and the wire clip 4.

Claims

1. A wiring system for low-voltage switchgear to reduce electromagnetic interference, comprising a cabinet (1); characterized in that: It also includes wire clips (4), side panels (101) are provided on both sides of the cabinet (1), the side panels (101) are provided with mounting holes (102), a first shielding plate (2) for shielding electromagnetic interference is provided on one side of the side panel (101), a second shielding plate (3) for shielding electromagnetic interference is provided on one side of the two sets of first shielding plates (2), wire clips (4) for fixing wires are provided on the inner side of the two sets of first shielding plates (2), a connector (5) is provided at the connection between the wire clips (4) and the side panels (101), a connector (5) is also provided at the connection between the first shielding plate (2) and the side panels (101), the connector (5) is spliced ​​and fixed with the wire clips (4) or the first shielding plate (2), the mounting holes (102) are square holes, and the mounting holes (102) are equidistant from the mounting holes (102) adjacent to the top, bottom and left and right, and the first shielding plate (2) and the cabinet (1) are equipped with ground wires.

2. The wiring system for low-voltage switchgear assemblies with reduced electromagnetic interference according to claim 1, characterized in that: The wire buckle (4) is semi-circular, and a connecting foot (401) is provided at the cross-section of the semi-circle. The wire buckle (4) and the connecting foot (401) are injection molded as one piece.

3. The wiring system for low-voltage switchgear assemblies with reduced electromagnetic interference according to claim 1, characterized in that: The first shielding plate (2) has a mounting foot (203) on one side. The mounting foot (203) is made of sheet metal and the bending direction is consistent.

4. A wiring system for low-voltage switchgear to reduce electromagnetic interference according to claim 3, characterized in that: A buckle (501) is provided on one side of the connector (5), and a connecting groove (502) is provided on the side of the connector (5) away from the buckle (501). The connecting groove (502) has an L-shaped cross section, and the depth of the connecting groove (502) is consistent with the height of the connecting foot (401) and the support foot (203).

5. A wiring system for low-voltage switchgear to reduce electromagnetic interference according to claim 3, characterized in that: The first shielding plate (2) has a first ventilation slot (202), the second shielding plate (3) has a second ventilation slot (301), and the first shielding plate (2) has a wire-passing slot (201) on the side away from the mounting foot (203) to facilitate the wire passing through.

6. A wiring system for low-voltage switchgear to reduce electromagnetic interference according to claim 3, characterized in that: The first shielding plate (2) is provided with a mounting base (204) on the side away from the mounting foot (203). The mounting base (204) is made of sheet metal bending. An embedding groove (205) is provided on the top of the mounting base (204). An embedding rod (302) is provided at the connection between the second shielding plate (3) and the embedding groove (205). A limit block (303) is provided at one end of the embedding rod (302).

7. A wiring system for low-voltage switchgear assemblies with reduced electromagnetic interference according to claim 6, characterized in that: The two sets of mounting bases (204) at the same location are staggered in height and bent in opposite directions. The embedded rod (302) is set up with the mounting base (204) so ​​that it is higher on the left and lower on the right.

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