Switchgear and front side panel thereof

Abstract

The utility model discloses a switch cabinet and front side plate thereof relates to high pressure switch equipment technical field, wherein, the switch cabinet forms the containing space of accommodation circuit breaker, and the switch cabinet forms the entrance and exit of intercommunication with the containing space along one side of horizontal direction, the front side plate of this switch cabinet is set up in the containing space along one side of vertical direction, and the one side of front side plate towards containing space forms two along vertical direction extension's flanging, and two flanging respectively is located the both ends of front side plate along horizontal direction, and the flanging of near entrance and exit is equipped with the bolt hole of circuit breaker pin shaft insertion, and the one side of front side plate towards containing space is equipped with the reinforcing plate, and reinforcing plate is set up near the bolt hole, and reinforcing plate extends along horizontal direction, and the both ends of reinforcing plate along horizontal direction respectively detachably connected in two flanging. The front side plate of switch cabinet of the utility model, the bending resistance of whole and reliability is better.

Description

Technical Field

[0001] This utility model relates to the field of high voltage switchgear technology, and in particular to a switch cabinet and its front panel. Background Technology

[0002] As a crucial piece of equipment in medium-voltage power systems, the 40.5kV switchgear's reliability is directly affected by the precision of the connection between its trolley circuit breaker (handcart) and the switchgear cabinet. This type of switchgear is relatively large, and when moving a high-current circuit breaker from the test position to the operating position, especially when the circuit breaker's stud contacts engage with the stationary contacts inside the cabinet, the handcart pin needs to be inserted into the pin hole on the front panel of the switchgear to ensure stable engagement. However, during current operation, the high pressure of the stud contact fingers increases the force exerted on the handcart. This force is further transmitted to the front panel of the switchgear through the handcart's crossbeam mechanism, making the front panel prone to deformation. This severely affects the proper engagement and dimensional accuracy of the moving and stationary contacts, easily leading to difficulties in subsequent handcart connection and poor reliability. Utility Model Content

[0003] The main purpose of this utility model is to propose a switch cabinet and its front side panel, which aims to solve the technical problems of existing switch cabinet side panels being prone to deformation and having poor reliability.

[0004] To achieve the above objectives, this utility model proposes a front panel for a switchgear. The switchgear forms a space for accommodating a circuit breaker, and an entrance / exit communicating with the space is formed on one side of the switchgear along the lateral direction. The front panel is disposed on one side of the space along the longitudinal direction, and the side of the front panel facing the space has two vertically extending flanges, which are respectively located at both ends of the front panel along the lateral direction. A pin hole for inserting a circuit breaker pin is provided on the flange near the entrance / exit. A reinforcing plate is disposed on the side of the front panel facing the space, and the reinforcing plate is disposed near the pin hole. The reinforcing plate extends laterally, and its two ends along the lateral direction are detachably connected to the two flanges.

[0005] In one embodiment, each of the flanges and the front side plate form a mounting groove. The reinforcing plate includes a reinforcing section and two connecting sections. The reinforcing section extends laterally, and the two connecting sections are respectively connected to opposite ends of the reinforcing section laterally. The two connecting sections extend into the two mounting grooves and are connected to the corresponding flanges.

[0006] In one embodiment, the reinforcing section is a hollow section, and the connecting section is a solid section.

[0007] In one embodiment, each of the folded edges includes a first fold plate and a second fold plate. The second fold plate is connected to the side of the first fold plate away from the front side plate. The first fold plate, the second fold plate, and the front side plate together form the mounting groove. The second fold plate near the entrance / exit is provided with the pin hole. The two connecting sections are detachably connected to the two second fold plates respectively.

[0008] In one embodiment, two first folding plates protrude from both ends of the front side plate toward the accommodating space, and two second folding plates extend toward each other from the side of the two first folding plates opposite to the front side plate.

[0009] In one embodiment, each of the second folding plates has a through hole for a fastening bolt to pass through, and each of the connecting sections has a threaded hole. The bolt passes through the through hole and is threadedly connected to the corresponding threaded hole to fasten the connecting section to the second folding plate.

[0010] In one embodiment, at least one of the connecting segments and the reinforcing segment forms a limiting step at the connection point, the limiting step being able to abut against the side of the second folding plate opposite to the first folding plate.

[0011] In one embodiment, a protective plate is provided on the side of the front side panel facing the accommodating space, and the protective plate abuts against two second folding plates at opposite ends along the lateral direction, forming a wiring space between the protective plate and the front side panel.

[0012] In one embodiment, a plurality of brackets are provided in the wiring space, and the plurality of brackets are distributed at intervals along the vertical direction. Each bracket is detachably connected to the front side plate and the protective plate on opposite sides along the longitudinal direction.

[0013] This utility model also proposes a switch cabinet, which forms a housing space for a circuit breaker. The switch cabinet has an entrance / exit communicating with the housing space on one side along the lateral direction. The housing space is provided with two front side panels of the switch cabinet as described above on opposite sides along the longitudinal direction.

[0014] The front panel of this utility model switchgear has two folded edges formed on both sides along the horizontal direction. Each folded edge extends vertically, and a pin hole is provided on the folded edge near the inlet / outlet for the insertion of the circuit breaker pin. After the circuit breaker enters the receiving space and the circuit breaker's sprite contact engages with the stationary contact in the switchgear, the circuit breaker pin is inserted into the pin hole of the folded edge to maintain the engagement accuracy of the sprite contact and the stationary contact. By setting a reinforcing plate, the two ends of the reinforcing plate are connected to the two folded edges, and the reinforcing plate is close to the pin hole. When the folded edge with the pin hole is subjected to the force from the circuit breaker, part of the force is transferred to the other folded edge through the reinforcing plate, thus dispersing the force and avoiding bending deformation of the folded edge caused by concentrated force. This improves the overall bending resistance of the front panel and enhances its reliability. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the front panel of a switch cabinet provided in an embodiment of the present invention; Figure 2 This is a partial structural diagram of the front panel of a switch cabinet provided in one embodiment of the present invention.

[0017] Explanation of icon numbers: 100. Front side panel; 1. Folded edge; 11. First folded plate; 12. Second folded plate; 121. Pin hole; 122. Through hole; 13. Mounting groove; 2. Reinforcing plate; 21. Reinforcing section; 22. Connecting section; 23. Limiting step; 3. Guard plate; 31. Bracket.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] 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 scope of protection of the present utility model.

[0020] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] This utility model proposes a front panel 100 for a switch cabinet.

[0023] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the switch cabinet forms a housing space for accommodating circuit breakers, and an entrance / exit communicating with the housing space is formed on one side of the switch cabinet along the lateral direction. The front side plate 100 of the switch cabinet is disposed on one side of the housing space along the longitudinal direction, and the side of the front side plate 100 facing the housing space has two vertically extending flanges 1, and the two flanges 1 are respectively located at both ends of the front side plate 100 along the lateral direction. A pin hole 121 for inserting the pin shaft of the circuit breaker is opened on the flange 1 near the entrance / exit. A reinforcing plate 2 is disposed on the side of the front side plate 100 facing the housing space, and the reinforcing plate 2 is disposed near the pin hole 121. The reinforcing plate 2 extends laterally, and the two ends of the reinforcing plate 2 along the lateral direction are detachably connected to the two flanges 1 respectively.

[0024] The front panel 100 of this utility model has two folded edges 1 formed on both sides of the front panel 100 along the horizontal direction. Each folded edge 1 extends vertically. A pin hole 121 for inserting the pin shaft of the circuit breaker is opened on the folded edge 1 near the entrance / exit. After the circuit breaker enters the receiving space and the stylus contact of the circuit breaker engages with the stationary contact in the switch cabinet, the pin shaft of the circuit breaker is inserted into the pin hole 121 of the folded edge 1 to maintain the engagement accuracy of the stylus contact and the stationary contact. By setting a reinforcing plate 2, the two ends of the reinforcing plate 2 are connected to the two folded edges 1 and the reinforcing plate 2 is close to the pin hole 121. When the folded edge 1 with the pin hole 121 is subjected to the force from the circuit breaker, part of the force is transferred to the other folded edge 1 through the reinforcing plate 2, thus dispersing the force and avoiding bending deformation of the folded edge 1 caused by the concentration of force. This improves the overall bending resistance of the front panel 100 and enhances its reliability.

[0025] It should be noted that in this embodiment, the switchgear is described using a 40.5KV switchgear as an example. The circuit breaker used in conjunction with it is a vehicle-mounted circuit breaker, which is equipped with a pin. After the vehicle-mounted circuit breaker enters the receiving space, the pin is inserted into the pin hole 121 to prevent the vehicle-mounted circuit breaker from accidentally moving out of the receiving space. Therefore, the force exerted by the vehicle-mounted circuit breaker on the folded edge 1 is mainly a lateral force. The two folded edges 1 are connected by a reinforcing plate 2, making the two folded edges 1 and the reinforcing plate 2 a whole structure. Since the reinforcing plate 2 is close to the pin hole 121, after the lateral force is applied at the pin hole 121 on the folded plate, part of the force is transferred to the other folded plate through the reinforcing plate 2, which is arranged in the lateral direction, thus dispersing the force. Therefore, the reinforcing plate 2 strengthens the overall lateral bending resistance of the front side plate 100.

[0026] It should be noted that, for switch cabinets, the end of the switch cabinet closest to the entrance / exit is the front end, and the other end opposite to the front end is the rear end. The front side panel 100 is set close to the front end, and the two front side panels 100 enclose the accommodating space and the entrance / exit.

[0027] In one embodiment, each folded edge 1 and the front side plate 100 form a mounting groove 13. The reinforcing plate 2 includes a reinforcing section 21 and two connecting sections 22. The reinforcing section 21 extends laterally, and the two connecting sections 22 are respectively connected to the opposite ends of the reinforcing section 21 laterally. The two connecting sections 22 extend into the two mounting grooves 13 and are connected to the corresponding folded edge 1.

[0028] Understandably, by forming a mounting groove 13 with the folding plate and the front side plate 100, when installing the reinforcing plate 2, one of the connecting segments 22 of the reinforcing plate 2 can be inserted into the corresponding mounting groove 13 first to initially limit and position the reinforcing plate 2, and then the other connecting segment 22 can be inserted into another mounting groove 13 to effectively limit and fix the reinforcing plate 2, which is convenient for installation.

[0029] In one embodiment, the reinforcing section 21 is a hollow section, and the connecting section 22 is a solid section. Understandably, by making the reinforcing section 21 hollow, the cost is reduced and the weight of the entire reinforcing plate 2 is also reduced while ensuring lateral stability; by making the connecting section 22 a solid section, the connecting section 22 has sufficient strength, ensuring the reliability of the connection between the connecting section 22 and the folded edge 1.

[0030] In one embodiment, each folded edge 1 includes a first fold plate 11 and a second fold plate 12. The second fold plate 12 is connected to the side of the first fold plate 11 away from the front side plate 100. The first fold plate 11, the second fold plate 12, and the front side plate 100 together form a mounting groove 13. A pin hole 121 is provided on the second fold plate 12 near the entrance / exit. Two connecting sections 22 are detachably connected to the two second fold plates 12 respectively. It can be understood that the folded edge 1 includes a first fold plate 11 and a second fold plate 12. The first fold plate 11, the second fold plate 12, and the front side plate 100 form a U-shaped mounting groove 13. By providing a pin hole 121 on the second fold plate 12, and with the second fold plate 12 parallel to the front side plate 100 and its lateral dimension being larger than its longitudinal dimension, the pin hole 121 of the second fold plate 12 is less prone to deformation when subjected to lateral force, resulting in better reliability.

[0031] In one embodiment, two first folding plates 11 protrude from both ends of the front side plate 100 in the direction of the accommodating space, and two second folding plates 12 extend from the sides of the two first folding plates 11 opposite to the front side plate 100. Understandably, the first folding plates 11 are formed directly on the front side plate 100, and the second folding plates 12 are formed directly on the first folding plates 11, so that the first folding plates 11, the second folding plates 12, and the front side plate 100 are integrally formed. During production, the first folding plates 11 and the second folding plates 12 can also be bent and formed through both ends of the front side plate 100, resulting in a more robust integrated structure with better resistance to deformation.

[0032] In one embodiment, each second folding plate 12 has a through hole 122 for fastening bolts to pass through, and each connecting section 22 has a screw hole. The bolt passes through the through hole 122 and is threadedly connected to the corresponding screw hole to fasten the connecting section 22 to the second folding plate 12.

[0033] Understandably, by providing a through hole 122 on the second folding plate 12 and a screw hole on the connecting section 22, after the connecting section 22 extends into the mounting groove 13 and the through hole 122 is aligned with the screw hole, the connecting section 22 is fixed to the second folding plate 12 by bolts. The bolts can firmly fix the connecting section 22 to the second folding plate 12. The bolts extend longitudinally and can ensure the connection stability between the connecting section 22 and the second folding plate 12 after the folding plate is subjected to lateral force.

[0034] In one embodiment, a limiting step 23 is formed at the connection between at least one connecting segment 22 and the reinforcing segment 21. The limiting step 23 can abut against the side of the second folding plate 12 opposite to the first folding plate 11. Understandably, by forming the limiting step 23 at the connection between the connecting segment 22 and the reinforcing segment 21, the limiting step 23 can ensure quick alignment of the through hole 122 and the screw hole during installation, thereby improving the installation efficiency of the reinforcing plate 2.

[0035] In one embodiment, a protective plate 3 is provided on the side of the front side panel 100 facing the accommodating space. The protective plate 3 abuts against two second folding plates 12 at opposite ends along the lateral direction, and a wiring space is formed between the protective plate 3 and the front side panel 100.

[0036] By setting up a wiring space between the protective plate 3 and the front side plate 100, some cables in the switch cabinet can be arranged in an orderly manner within the wiring space, preventing interference between the cables and the circuit breaker, and ensuring the safety of the cables during the process of moving the circuit breaker into and out of the housing space.

[0037] In one embodiment, a plurality of supports 31 are provided in the wiring space, and the plurality of supports 31 are distributed vertically at intervals. Each support 31 is detachably connected to the front side plate 100 and the protective plate 3 on opposite sides along the longitudinal direction. By providing a plurality of supports 31 in the wiring space and distributing the plurality of supports 31 at intervals along the vertical direction, the protective plate 3 can be connected to the plurality of supports 31, which improves the stability of the protective plate 3 and effectively prevents the protective plate 3 from falling off, thus improving reliability.

[0038] Specifically, the bracket 31 is securely mounted on the front side plate 100 by bolts, and the guard plate 3 is also connected to the bracket 31 by bolts.

[0039] This utility model also proposes a switch cabinet, which forms a housing space for accommodating circuit breakers. The switch cabinet has an entrance / exit connected to the housing space along one side of the transverse direction. The housing space is provided with two front side panels 100 as described above on opposite sides along the longitudinal direction.

[0040] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made under the technical concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A front panel of a switch cabinet, characterized in that, The switch cabinet forms a housing space for the circuit breaker, and an entrance / exit communicating with the housing space is formed on one side of the switch cabinet along the lateral direction. The front side plate is disposed on one side of the housing space along the longitudinal direction, and the side of the front side plate facing the housing space has two vertically extending folded edges, and the two folded edges are respectively located at both ends of the front side plate along the lateral direction. A pin hole for inserting the circuit breaker pin shaft is opened on the folded edge near the entrance / exit. A reinforcing plate is disposed on the side of the front side plate facing the housing space, and the reinforcing plate is disposed near the pin hole. The reinforcing plate extends laterally, and the two ends of the reinforcing plate along the lateral direction are detachably connected to the two folded edges.

2. The front panel of the switchgear as described in claim 1, characterized in that, Each of the folded edges and the front side plate form a mounting groove. The reinforcing plate includes a reinforcing section and two connecting sections. The reinforcing section extends laterally, and the two connecting sections are respectively connected to the opposite ends of the reinforcing section laterally. The two connecting sections extend into the two mounting grooves and are connected to the corresponding folded edges.

3. The front panel of the switchgear as described in claim 2, characterized in that, The reinforcing section is a hollow section with a hollow structure, and the connecting section is a solid section.

4. The front panel of the switchgear as described in claim 2, characterized in that, Each of the folded edges includes a first fold plate and a second fold plate. The second fold plate is connected to the side of the first fold plate away from the front side plate. The first fold plate, the second fold plate, and the front side plate together form the mounting groove. The second fold plate near the entrance / exit is provided with the pin hole. The two connecting sections are detachably connected to the two second fold plates respectively.

5. The front panel of the switchgear as described in claim 4, characterized in that, Two first folding plates protrude from both ends of the front side plate toward the accommodating space, and two second folding plates extend toward each other from the side of the two first folding plates away from the front side plate.

6. The front panel of the switchgear as described in claim 4, characterized in that, Each of the second folding plates has a through hole for fastening bolts to pass through, and each of the connecting sections has a screw hole. The bolt passes through the through hole and is threaded into the corresponding screw hole to fasten the connecting section to the second folding plate.

7. The front panel of the switchgear as described in claim 4, characterized in that, At least one of the connecting segments and the reinforcing segment forms a limiting step at the connection point, and the limiting step can abut against the side of the second folding plate opposite to the first folding plate.

8. The front panel of the switchgear as described in claim 4, characterized in that, A protective plate is provided on the side of the front side panel facing the accommodating space. The protective plate abuts against two second folding plates at opposite ends along the lateral direction. A wiring space is formed between the protective plate and the front side panel.

9. The front panel of the switchgear as described in claim 8, characterized in that, The wiring space is provided with multiple brackets, which are distributed vertically at intervals. Each bracket is detachably connected to the front side plate and the protective plate on its opposite sides along the longitudinal direction.

10. A switch cabinet, characterized in that, The switch cabinet forms a housing space for the circuit breaker, and the switch cabinet forms an entrance / exit communicating with the housing space on one side along the lateral direction. The housing space is provided with two front side panels of the switch cabinet as described in any one of claims 1 to 9 on opposite sides along the longitudinal direction.

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