Anti-interference low-voltage switch cabinet

Abstract

The utility model discloses an anti-interference low-voltage switch cabinet, which belongs to the technical field of switch cabinets and comprises a switch cabinet body frame, and a plurality of layers of anti-interference drawers are mounted in the switch cabinet body frame in a drawing manner. Various controller assemblies and control switch assemblies in the anti-interference drawer are separated by anti-interference partition plates; anti-interference beam shielding boxes of which the number is equal to that of the control switch assemblies are fixedly mounted on the anti-interference partition plate, and all wires connected between the controller assembly and the control switch assemblies are led into the anti-interference beam shielding boxes by the anti-interference beam shielding boxes; the top of the anti-interference beam shielding box is covered with an anti-interference beam shielding cover which covers all the wires. The anti-interference partition plate, the anti-interference beam shielding box and the anti-interference beam shielding cover in the anti-interference drawer are all made of iron materials, so that a magnetic field generated by current change in a primary loop of a wire can be effectively shielded, the anti-interference effect is realized, and the stability and the safety of the low-voltage switch cabinet are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a switchgear technical field, concretely is a kind of anti-interference type low-voltage switchgear. BACKGROUND

[0002] Low-voltage switchgear, also known as low-voltage power distribution cabinet, is a kind of low-voltage switchgear and control equipment, for AC, DC voltage below 1000V complete electrical device. Among them, many drawers are installed in the low-voltage power distribution cabinet.

[0003] Because various controller components, such as relays, fuses, etc. are installed in the drawer, many wires are connected between these controllers and their respective control switches. These wires in the primary circuit can generate a magnetic field due to current changes, which can interact with the wires in the secondary circuit and induce interference voltage. Especially when large current changes occur in the primary circuit (such as switch operation, short circuit fault, etc.), this interference will be more pronounced, resulting in certain safety hazards in the use of low-voltage switchgear. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide an anti-interference type low-voltage switchgear. The anti-interference partition plate, anti-interference beam shielding box and anti-interference beam shielding cover in the anti-interference drawer are all made of iron material. Since iron is a magnetic material, its physical properties can effectively shield the magnetic field generated by current changes in the primary circuit of the wire, thereby achieving anti-interference effect and greatly improving the stability and safety of the low-voltage switchgear.

[0005] To solve the above technical problems, the technical solution of the utility model is as follows:

[0006] An anti-interference type low-voltage switchgear includes a switchgear cabinet frame, and a plurality of anti-interference drawers are installed in the switchgear cabinet frame in a pull-out manner.

[0007] Various controller components and control switch components are fixedly installed in the anti-interference drawer. An anti-interference partition plate is installed between the controller components and the control switch components. The anti-interference partition plate is made of iron plate.

[0008] An anti-interference beam shielding box equal in number to the control switch components is fixedly installed on the anti-interference partition plate. Lead-in ports are formed at both ends of the anti-interference beam shielding box. All wires connecting the controller components and the control switch components are introduced into the anti-interference beam shielding box through the lead-in ports.

[0009] An anti-interference beam shielding cover is attached to the top of the anti-interference beam shielding box to cover all the wires. The anti-interference beam shielding box and the anti-interference beam shielding cover are respectively made of iron box and iron cover.

[0010] The anti-interference beam shielding box is fixed with mounting seats at two ends, and the mounting seats are fixed on the anti-interference partition plate through screws.

[0011] According to the above scheme, the anti-interference partition plate, the anti-interference beam shielding box and the anti-interference beam shielding cover in the anti-interference drawer are all made of iron material. Since iron is a magnetic material, its physical properties can effectively shield the magnetic field generated by the current change in the primary circuit of the wire, thereby realizing the anti-interference effect and greatly improving the stability and safety of the low-voltage switch cabinet.

[0012] As a preferred embodiment of the anti-interference type low-voltage switch cabinet, the anti-interference beam shielding box is internally provided with a partition plate separating the internal space into upper and lower parts, a sliding groove is formed through the partition plate, a positioning column is slidingly installed in the sliding groove, a winding drum is threadedly installed on the positioning column, and the wire is wound on the two winding drums.

[0013] According to the above scheme, in order to facilitate the storage of the wire in the anti-interference beam shielding box, the distance between the two winding drums can be adjusted, and the wire in the anti-interference beam shielding box is wound on the two winding drums. In this way, the wire is all concentrated in the anti-interference beam shielding box, and the magnetic field generated by the wire is all shielded in the anti-interference beam shielding box.

[0014] As a preferred embodiment of the anti-interference type low-voltage switch cabinet, the bottom of the positioning column is fixed with an anti-tilting seat below the partition plate, the diameter of the anti-tilting seat is greater than the width of the sliding groove, the bottom of the anti-tilting seat is fixed with a steel ball, and the bottom of the steel ball abuts against the inner bottom of the anti-interference beam shielding box.

[0015] According to the above scheme, in order to realize the stability and reliability of the positioning column during sliding, the anti-tilting seat is provided to prevent the positioning column from tilting, and the steel ball is provided to support the positioning column, thereby ensuring the stability and reliability of the positioning column during sliding.

[0016] As a preferred embodiment of the anti-interference type low-voltage switch cabinet, the bottom of the winding drum is fixed with a tight disc above the partition plate, the diameter of the tight disc is greater than the width of the sliding groove, the lower surface of the tight disc is covered with protruding anti-slip patterns, and the top of the winding drum is fixed with a handle.

[0017] According to the above scheme, in order to facilitate the fixation of the positioning column, after the position of the positioning column is determined, the handle is rotated, and the tight disc at the bottom of the winding drum abuts against the partition plate, thereby fixing the positioning column and the winding drum at the same time.

[0018] As a preferred embodiment of the anti-interference low-voltage switch cabinet, the inside of the anti-interference beam shielding box is fixed with a beam seat through a screw near the lead port, the beam seat is fixed with two groups of parallel beam blocks, the middle of the beam block is provided with a beam slot, and the lead wire is led into the beam slot; the diameter of the lead wire is equal to the width of the beam slot, and the two side surfaces of the beam slot are provided with recessed protection grooves.

[0019] By adopting the above scheme, in order to better position the lead wire, the lead wire can be fixed in the two beam slots in advance before winding on the winding drum, so as to improve the stability of the lead wire after winding.

[0020] After the above technical scheme is adopted, the beneficial effects of the utility model are:

[0021] 1. The anti-interference partition plate, the anti-interference beam shielding box and the anti-interference beam shielding cover in the anti-interference drawer are all made of iron material, since iron is a magnetic material, its physical properties can effectively shield the magnetic field generated by the current change in the primary circuit of the lead wire, thereby realizing the anti-interference effect and greatly improving the stability and safety of the low-voltage switch cabinet.

[0022] 2. In order to facilitate the storage of the lead wire in the anti-interference beam shielding box, the distance between the two winding drums can be adjusted, and the lead wire in the anti-interference beam shielding box is wound on the two winding drums, so that the lead wire is all concentrated in the anti-interference beam shielding box, and the magnetic field generated by the lead wire is all shielded in the anti-interference beam shielding box.

[0023] 3. In order to realize the stability and reliability of the positioning column when sliding, the anti-tilt seat is arranged to prevent the positioning column from tilting, and the steel ball is arranged to support the positioning column, so as to ensure the stability and reliability of the positioning column when sliding.

[0024] 4. In order to facilitate the fixation of the positioning column, after the position of the positioning column is determined, the handle is rotated, and the tightening disc at the bottom of the winding drum is abutted on the spacing plate, so as to fix the positioning column and the winding drum at the same time.

[0025] 5. In order to better position the lead wire, the lead wire can be fixed in the two beam slots in advance before winding on the winding drum, so as to improve the stability of the lead wire after winding. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description can also be obtained by the person skilled in the art without creative labor.

[0027] Figure 1The three-dimensional structure of this utility model Figure 1 ;

[0028] Figure 2 The three-dimensional structure of this utility model Figure 2 ;

[0029] Figure 3 for Figure 1 A 3D structural diagram of the second drawer from the bottom;

[0030] Figure 4 To hide Figure 3 3D structural diagram behind the side panel;

[0031] Figure 5 for Figure 4 Three-dimensional structural diagram of the anti-interference beam shielding box and anti-interference beam shielding cover after installation;

[0032] Figure 6 To hide Figure 5 Three-dimensional structural diagram of the shielding cover behind the anti-interference beam;

[0033] Figure 7 For horizontal display Figure 6 A three-dimensional structural diagram of the internal structure;

[0034] Figure 8 for Figure 7 A magnified view of a section at point A in the middle;

[0035] Figure 9 For vertical display Figure 6 A three-dimensional structural diagram of the internal structure;

[0036] Figure 10 for Figure 6 Three-dimensional structural diagram of the center positioning post and winding drum after installation;

[0037] Figure 11 for Figure 6 A three-dimensional structural diagram of the center wire connector.

[0038] The markings in the diagram are: 1-Switch cabinet frame; 2-Anti-interference drawer; 3-Controller assembly; 4-Control switch assembly; 5-Anti-interference partition; 6-Anti-interference bundle shielding box; 7-Lead port; 8-Wire; 9-Anti-interference bundle shielding cover; 10-Spacing plate; 11-Slide groove; 12-Positioning post; 13-Winding spool; 14-Anti-tilt seat; 15-Steel ball; 16-Fixing plate; 17-Turning handle; 18-Wire harness holder; 19-Wire harness block; 20-Wire harness groove; 21-Mounting base. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] like Figures 1 to 10 As shown, an anti-interference type low-voltage switchgear includes a switchgear frame 1, with multiple layers of anti-interference drawers 2 installed in a pull-out manner inside the switchgear frame 1; various controller components 3 and control switch components 4 are fixedly installed inside the anti-interference drawers 2, and anti-interference partitions 5, which are made of iron plates, are installed between the controller components 3 and the control switch components 4; anti-interference bundle shielding boxes 6, equal in number to the control switch components 4, are fixedly installed on the anti-interference bundle shielding boxes 5, with lead-in ports 7 at both ends of the anti-interference bundle shielding boxes 6, through which all the wires 8 connecting the controller components 3 and the control switch components 4 are introduced into the anti-interference bundle shielding boxes 6; the top of the anti-interference bundle shielding boxes 6 is covered with an anti-interference bundle shielding cover 9 that completely covers the wires 8, and the anti-interference bundle shielding boxes 6 and the anti-interference bundle shielding cover 9 are iron boxes and iron covers, respectively; mounting bases 21 are fixed at both ends of the anti-interference bundle shielding boxes 6, and the mounting bases 21 are fixed to the anti-interference partitions 5 by screws. The anti-interference partition 5, anti-interference bundle shielding box 6, and anti-interference bundle shielding cover 9 inside the anti-interference drawer 2 are all made of iron. Since iron is a magnetic material, its physical properties can effectively shield the magnetic field generated by the change of current in the primary circuit of the conductor 8, thereby achieving the anti-interference effect and greatly improving the stability and safety of the low-voltage switchgear.

[0041] like Figures 6 to 10 As shown, the anti-interference beam shielding box 6 has a partition plate 10 that divides its internal space vertically. A sliding groove 11 is formed through the partition plate 10, and a positioning post 12 is slidably installed in the sliding groove 11. A winding bobbin 13 is threaded onto the positioning post 12, and the wire 8 is wound around two winding bobbins 13 simultaneously. To facilitate the storage of the wire 8 inside the anti-interference beam shielding box 6, the distance between the two winding bobbins 13 can be adjusted. The wire 8 inside the anti-interference beam shielding box 6 is wound around the two winding bobbins 13, so that all the wire 8 is concentrated in the anti-interference beam shielding box 6, and the magnetic field generated by the wire 8 is completely shielded inside the anti-interference beam shielding box 6.

[0042] like Figure 10As shown, an anti-tilt seat 14 is fixed to the bottom of the positioning post 12, located below the partition plate 10. The diameter of the anti-tilt seat 14 is larger than the width of the slide groove 11. A steel ball 15 is fixed to the bottom of the anti-tilt seat 14, and the bottom of the steel ball 15 abuts against the inner bottom of the anti-interference beam shielding box 6. In order to achieve the stability and reliability of the positioning post 12 during sliding, the anti-tilt seat 14 is set to prevent the positioning post 12 from tilting, and the steel ball 15 is set to support the positioning post 12, thereby ensuring the stability and reliability of the positioning post 12 during sliding.

[0043] like Figure 10 As shown, a retaining plate 16 is fixed to the bottom of the winding drum 13, located above the spacer plate 10. The diameter of the retaining plate 16 is larger than the width of the groove 11. The lower surface of the retaining plate 16 is covered with raised anti-slip textures. A handle 17 is fixed to the top of the winding drum 13. To facilitate the fixing of the positioning post 12, after the position of the positioning post 12 is determined, the handle 17 is rotated, and the retaining plate 16 at the bottom of the winding drum 13 abuts against the spacer plate 10, thereby simultaneously fixing the positioning post 12 and the winding drum 13.

[0044] like Figure 6 , Figure 11 As shown, inside the anti-interference bundle shielding box 6, near the lead wire port 7, a bundle holder 18 is fixed with screws. Two sets of parallel bundle blocks 19 are fixed on the bundle holder 18. A bundle groove 20 is formed in the middle of each bundle block 19, through which the wire 8 passes. The diameter of the wire 8 is equal to the width of the bundle groove 20, and recessed protective grooves are formed on both sides of the bundle groove 20. To facilitate better positioning of the wire 8, it can be pre-fixed in the two bundle grooves 20 before winding on the winding spool 13, thereby improving the stability of the wire 8 after winding.

[0045] The working principle of this utility model:

[0046] In application, the anti-interference beam shielding box 6 is fixedly installed on the anti-interference partition 5. The wire 8 of the controller component 3 (such as a relay) is introduced from the bottom of the anti-interference partition 5 into the anti-interference beam shielding box 6. Then, the wire 8 is led out from the anti-interference beam shielding box 6 and connected to the control switch component 4 (such as a relay control switch).

[0047] If the wire 8 inside the anti-interference bundle shielding box 6 is too long, the wire 8 can be fixed in the bundle groove 20 of the bundle seat 18 first, and then the excess wire 8 can be wound on the winding spool 13. In this way, all the wires 8 are concentrated in the anti-interference bundle shielding box 6, and the magnetic field generated by the wires 8 will be completely shielded inside the anti-interference bundle shielding box 6.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An anti-interference type low-voltage switchgear, comprising a switchgear cabinet frame (1), wherein the switchgear cabinet frame (1) is equipped with upper and lower multi-layer anti-interference drawers (2) installed in a pull-out manner; Its features are: Various controller components (3) and control switch components (4) are fixedly installed inside the anti-interference drawer (2). An anti-interference partition (5) is installed between the controller components (3) and the control switch components (4). The anti-interference partition (5) is made of iron plate. An anti-interference beam shielding box (6) with the same number as the control switch assembly (4) is fixedly installed on the anti-interference partition (5). The anti-interference beam shielding box (6) has lead-in ports (7) at both ends. All wires (8) connecting the controller assembly (3) and the control switch assembly (4) are introduced into the anti-interference beam shielding box (6) through the lead-in ports (7). The top of the anti-interference beam shielding box (6) is covered with an anti-interference beam shielding cover (9) that completely covers the wires (8). The anti-interference beam shielding box (6) and the anti-interference beam shielding cover (9) are iron boxes and iron covers, respectively.

2. The anti-interference type low-voltage switchgear according to claim 1, characterized in that: The anti-interference beam shielding box (6) is provided with a partition plate (10) that divides its internal space vertically. A sliding groove (11) is provided through the partition plate (10). A positioning post (12) is slidably installed in the sliding groove (11). A winding bobbin (13) is threaded onto the positioning post (12). The wire (8) is wound on two winding bobbins (13) at the same time.

3. The anti-interference type low-voltage switchgear according to claim 2, characterized in that: The bottom of the positioning post (12) is fixed with an anti-tilt seat (14) located below the partition plate (10), the diameter of which is greater than the width of the groove (11).

4. The anti-interference type low-voltage switchgear according to claim 3, characterized in that: The bottom of the anti-tilt seat (14) is fixed with a steel ball (15), the bottom of which abuts against the inner bottom of the anti-interference beam shield box (6).

5. The anti-interference type low-voltage switchgear according to claim 2, characterized in that: The bottom of the winding drum (13) is fixed with a retaining plate (16) located above the spacer plate (10), the diameter of which is greater than the width of the groove (11).

6. The anti-interference type low-voltage switchgear according to claim 5, characterized in that: The lower surface of the clamping plate (16) is covered with raised anti-slip textures.

7. The anti-interference type low-voltage switchgear according to claim 6, characterized in that: A throttle (17) is fixed to the top of the winding spool (13).

8. The anti-interference type low-voltage switchgear according to claim 1, characterized in that: Inside the anti-interference bundle shielding box (6), near the lead wire port (7), there is a bundle seat (18). Two sets of parallel bundle blocks (19) are fixed on the bundle seat (18). A bundle groove (20) is opened in the middle of the bundle block (19). The wire (8) is led into the bundle groove (20).

9. The anti-interference type low-voltage switchgear according to claim 8, characterized in that: The diameter of the wire (8) is equal to the width of the wire harness groove (20), and the wire harness groove (20) has recessed protective grooves on both sides.

10. The anti-interference type low-voltage switchgear according to any one of claims 1-9, characterized in that: The anti-interference beam shielding box (6) has mounting bases (21) fixed at both ends, which are fixed to the anti-interference partition (5) by screws.

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