High-voltage switch cabinet with high insulation performance

Abstract

The utility model discloses a high voltage switchgear of high insulating performance, including the cabinet, the cabinet front side assembly has the protective door, the cabinet inner chamber is close to the assembly of upper side department and has the wiring cabinet, the wiring cabinet inner chamber bottom is provided with a plurality of wiring terminal, the detachable connection of wiring cabinet front side wall has the sealing cover, the wiring cabinet inner chamber is located between wiring terminal and is provided with a plurality of insulating partition, the insulating partition bottom all is fixedly connected with the clamping block, the insulating partition top all is seted up with the clamping groove, the utility model discloses can effectively improve insulating property, through increasing along the surface distance, the breakdown of conductive channel, reduces electric field distortion etc. mode, reduces the discharge risk between copper medal.

Description

Technical Field

[0001] This utility model belongs to the field of high voltage switchgear technology, specifically relating to a high voltage switchgear with high insulation performance. Background Technology

[0002] High-voltage switchgear is a complete set of power distribution equipment used in power systems to receive and distribute electrical energy. It is mainly used for the control, protection, measurement and connection of high-voltage power grids (usually 10kV and above), and is widely used in power plants, substations, industrial and mining enterprises and other places.

[0003] Interference exists between the metal copper plates at the incoming or outgoing lines of high-voltage switchgear, primarily due to electromagnetic induction and electric field coupling. When alternating current passes through the copper plates, an alternating magnetic field is generated. If adjacent copper plates are close together, the magnetic field will induce eddy currents within each other, leading to additional heat generation (especially in high-current scenarios), which may affect current-carrying capacity and equipment lifespan in the long run.

[0004] In addition, the magnetic field generated by a strong current may interfere with nearby weak electrical components (such as current transformers and instrument circuits), affecting measurement accuracy or the normal operation of protection devices.

[0005] Currently, insulation measures for the wiring area of ​​copper plates usually involve injecting insulating gas or wrapping an insulating layer on the copper plate. However, this method can only reduce electromagnetic interference to a limited extent and cannot effectively provide insulation.

[0006] Therefore, a high-voltage switchgear with high insulation performance is designed to overcome the above-mentioned technical defects. Utility Model Content

[0007] (1) Technical problems to be solved

[0008] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a high-voltage switchgear with high insulation performance. This high-voltage switchgear aims to solve the technical problem that injecting insulating gas or wrapping an insulating layer on a copper plate can only reduce electromagnetic interference to a limited extent and cannot effectively play an insulating role.

[0009] (2) Technical solution

[0010] To address the aforementioned technical problems, this utility model provides a high-voltage switchgear with high insulation performance, comprising a cabinet body, a protective door mounted on the front side of the cabinet body, a wiring cabinet mounted near the upper side of the cabinet body, multiple wiring terminals provided on the bottom surface of the wiring cabinet body, a sealing cover detachably connected to the front side wall of the wiring cabinet, several insulating partitions arranged between the wiring terminals in the wiring cabinet body, a locking block fixedly connected to the bottom surface of each insulating partition, a locking groove opened on the top surface of each insulating partition, and several insulating partitions being engaged with each other by locking blocks and locking grooves, and connecting components respectively provided on the upper and lower inner walls of the wiring cabinet.

[0011] Furthermore, both the card block and the card slot have a T-shaped cross-section.

[0012] Furthermore, the connection assembly includes a lower connection seat fixedly connected to the bottom surface of the junction box cavity, the top surface of the lower connection seat having a T-shaped groove, the locking block on the lowest insulating partition engaging with the T-shaped groove, an upper connection seat being assembled on the top surface of the junction box cavity, an adjusting plate being slidably connected to the bottom surface of the upper connection seat, a T-shaped block being fixedly connected to the bottom surface of the adjusting plate, the T-shaped block engaging with the locking groove on the uppermost insulating partition, and an adjusting assembly being provided on the side wall of the upper connection seat.

[0013] Furthermore, the adjusting assembly includes a bolt threaded to the front sidewall of the upper connecting seat, and a limiting groove is formed on the front sidewall of the adjusting plate, with the bolt abutting against the sidewall of the limiting groove.

[0014] Furthermore, each of the insulating partitions has a metal shielding layer inside.

[0015] Furthermore, both the lower and upper connecting seats are detachably connected to the junction box via screws.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model, through the design of cabinet, junction box, insulating partition and connecting components, uses the insulating partition to separate the copper plates, which can effectively improve the insulation. By increasing the surface distance, blocking the conductive path, and reducing electric field distortion, the risk of discharge between copper plates is reduced. It is especially suitable for the isolation of copper plates with different potentials in high voltage environments. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3This is a perspective view of the junction box of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the junction box of this utility model;

[0023] Figure 5 This is a perspective view of the insulating partition of this utility model;

[0024] Figure 6 This is a cross-sectional structural diagram of the insulating partition of this utility model;

[0025] Figure 7 This utility model Figure 4 Enlarged view of point A in the image;

[0026] The markings in the attached diagram are as follows: 1. Cabinet; 2. Protective door; 3. Junction cabinet; 4. Terminal block; 5. Sealing cover; 6. Insulating partition; 7. Locking block; 8. Locking slot; 9. Lower connecting seat; 10. T-slot; 11. Upper connecting seat; 12. Adjusting plate; 13. T-block; 14. Limiting slot; 15. Bolt; 16. Metal shielding layer. Detailed Implementation

[0027] This specific embodiment is a high-voltage switchgear with high insulation performance, and its structural schematic diagram is as follows. Figures 1-7 As shown, the device includes a cabinet 1, a protective door 2 mounted on the front side of the cabinet 1, a wiring cabinet 3 mounted near the upper side of the inner cavity of the cabinet 1, multiple wiring terminals 4 provided on the bottom surface of the inner cavity of the wiring cabinet 3, a sealing cover 5 detachably connected to the front side wall of the wiring cabinet 3, several insulating partitions 6 provided between the wiring terminals 4 in the inner cavity of the wiring cabinet 3, a locking block 7 fixedly connected to the bottom surface of each insulating partition 6, a locking groove 8 opened on the top surface of each insulating partition 6, and several insulating partitions 6 being engaged with each other by the locking block 7 and the locking groove 8, and connecting components respectively provided on the upper and lower inner walls of the wiring cabinet 3.

[0028] Both the locking block 7 and the locking slot 8 have T-shaped cross-sections. When the vertical part of the locking block 7 is embedded in the locking slot 8, the transverse flange of the slot can restrict the horizontal displacement of the block (left and right, front and back), while the bottom of the slot supports the vertical load of the block, forming a "locking" constraint to prevent loosening.

[0029] like Figure 4 and Figure 7 As shown, the connection assembly includes a lower connection seat 9 fixedly connected to the bottom surface of the inner cavity of the junction box 3. A T-shaped groove 10 is provided on the top surface of the lower connection seat 9. The locking block 7 on the bottommost insulating partition 6 engages with the T-shaped groove 10. An upper connection seat 11 is assembled on the top surface of the inner cavity of the junction box 3. An adjusting plate 12 is slidably connected to the bottom surface of the upper connection seat 11. A T-shaped block 13 is fixedly connected to the bottom surface of the adjusting plate 12. The T-shaped block 13 engages with the locking groove 8 on the topmost insulating partition 6. An adjusting assembly is provided on the side wall of the upper connection seat 11.

[0030] Specifically, the lower connecting seat 9 and the upper connecting seat 11 are respectively provided with T-shaped blocks 13 and T-shaped slots 10 that cooperate with the card block 7 and card slot 8, which facilitates the stable connection between multiple insulating partitions 6, so that each terminal 4 is in a sealed insulating environment, effectively reducing electromagnetic interference and other interference, and ensuring the stability of the switch cabinet during operation.

[0031] like Figure 7 As shown, the adjustment assembly includes a bolt 15 threaded to the front side wall of the upper connecting seat 11, and a limit groove 14 is formed on the front side wall of the adjustment plate 12, with the bolt 15 abutting against the side wall of the limit groove 14.

[0032] In addition, to further increase the adaptability of the insulating partition 6, the upper connecting seat 11 has a hollow structure inside. The adjusting plate 12 passes through the upper connecting seat 11 and is movably connected to it. It can be adjusted according to the distance between the uppermost insulating partition 6 and the adjusting plate 12, which can adapt to different sizes of junction boxes 3 while avoiding gaps and other problems.

[0033] like Figure 6 As shown, each insulating partition 6 has a metal shielding layer 16 inside. The metal shielding layer 16 is embedded inside the insulating partition 6 and is made of foil, copper foil or metal-plated plastic film wound into layers. It can effectively prevent signal leakage, resist external interference and provide electric field shielding.

[0034] like Figure 4 As shown, both the lower connector 9 and the upper connector 11 are detachably connected to the junction box 3 by screws.

[0035] Using screws for connection, during actual installation, after determining the installation position, you only need to use an electric wrench to directly fix the screws in the junction box 3 to fix the lower connector 9 and the upper connector 11. The operation is convenient and highly compatible.

[0036] Working principle: First, select an appropriate number of insulating partitions 6 according to the internal dimensions of the junction box 3. Then, mark the positions of the lower connecting seat 9 and the upper connecting seat 11, and fix the lower connecting seat 9 and the upper connecting seat 11 to the upper and lower sides of the junction box 3 respectively with screws. Next, insert the bottom insulating partition 6 into the T-shaped groove 10 through the locking block 7. When there is a gap between the top insulating partition 6 and the adjusting plate 12, loosen the bolt 15 to release the fixing of the adjusting plate 12. Then, move the adjusting plate 12 up and down to the appropriate position, select an insulating partition 6, insert the top of it into the T-shaped block 13 through the locking groove 8, and insert the bottom of it into the lower locking groove 8 through the locking block 7. Then tighten the bolt 15 to separate the wiring terminals 4 on both sides into a sealed space, thereby increasing the insulation performance.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A high-voltage switchgear with high insulation performance, comprising a cabinet (1), a protective door (2) mounted on the front side of the cabinet (1), a wiring cabinet (3) mounted near the upper side of the inner cavity of the cabinet (1), a plurality of wiring terminals (4) provided on the bottom surface of the inner cavity of the wiring cabinet (3), and a sealing cover (5) detachably connected to the front side wall of the wiring cabinet (3), characterized in that: The inner cavity of the junction box (3) is provided with several insulating partitions (6) between the terminals (4). Each insulating partition (6) has a fixed block (7) on its bottom surface and a slot (8) on its top surface. Several insulating partitions (6) are connected to each other by the block (7) and the slot (8). The upper and lower inner walls of the junction box (3) are respectively provided with connecting components.

2. The high-voltage switchgear with high insulation performance according to claim 1, characterized in that: Both the card block (7) and the card slot (8) have T-shaped cross-sections.

3. The high-voltage switchgear with high insulation performance according to claim 1, characterized in that: The connecting assembly includes a lower connecting seat (9) fixedly connected to the bottom surface of the inner cavity of the junction box (3). A T-shaped groove (10) is provided on the top surface of the lower connecting seat (9). A locking block (7) on the bottommost insulating partition (6) engages with the T-shaped groove (10). An upper connecting seat (11) is assembled on the top surface of the inner cavity of the junction box (3). An adjusting plate (12) is slidably connected to the bottom surface of the upper connecting seat (11). A T-shaped block (13) is fixedly connected to the bottom surface of the adjusting plate (12). The T-shaped block (13) engages with the locking groove (8) on the topmost insulating partition (6). An adjusting assembly is provided on the side wall of the upper connecting seat (11).

4. A high-voltage switchgear with high insulation performance according to claim 3, characterized in that: The adjustment assembly includes a bolt (15) threaded to the front side wall of the upper connecting seat (11), and a limiting groove (14) is provided on the front side wall of the adjustment plate (12), with the bolt (15) abutting against the side wall of the limiting groove (14).

5. A high-voltage switchgear with high insulation performance according to claim 1, characterized in that: Each insulating partition (6) has a metal shielding layer (16) inside.

6. A high-voltage switchgear with high insulation performance according to claim 3, characterized in that: Both the lower connector (9) and the upper connector (11) are detachably connected to the junction box (3) by screws.

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