Low-voltage cabinet outgoing line terminal protection assembly

Abstract

The utility model relates to a low-voltage cabinet outgoing line terminal protection assembly, and belongs to the technical field of power distribution equipment. The structure comprises an outgoing line terminal and a protective cover arranged at the position of the outgoing line terminal, the bottom of the outgoing line terminal is provided with a baffle connected with the protective cover in a matched mode, and the front end of the baffle is provided with a limiting folded edge. The device is simple in structure and convenient to use, and has the beneficial effects that the accurate installation of the protective cover and the baffle plate can be realized through only two-step operation, and no screw fastener is needed; the partition plates of the Z-shaped structure are adopted inside, so that the utilization rate of the internal space is remarkably improved, and the available space for screw fastening is effectively expanded; compared with a conventional method that a metal plate is adopted to carry out 4b-level isolation, the device provided by the utility model has a remarkable advantage in cost, and is more convenient in design at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to a low -voltage cabinet outgoing terminal protection subassembly belongs to power distribution equipment technical field. BACKGROUND

[0002] With the increasingly mature technology of the electric power industry, the current power distribution site pays more and more attention to safety. In the process of uninterrupted power operation and maintenance, it has become a general requirement to implement protection and isolation measures on the live parts. Especially in the environment with high requirements for electrical safety, the outgoing terminals of each functional unit of the low-voltage cabinet need to be isolated from each other to prevent a chain reaction when a functional unit fails. Due to the large number of outgoing terminals and the complexity of cable connection, they play a crucial role in the overall isolation and protection system. For the isolation method of the outgoing terminals, the national standard "GB7251.12-2013 Low-voltage Switchgear and Controlgear Assemblies and Controlgear Part 2: Low-voltage Switchgear and Controlgear Assemblies" Appendix AA provides clear regulations. Among them, form 4b of Appendix AA.3 is the highest standard, which emphasizes that isolation measures must be taken between the outgoing terminals of each functional unit. Currently, the common method is to use metal sealing plates around the outgoing terminals for closure, but this method has the complexity of processing and installation, and the electrical clearance between the metal sealing plate and the live part of the outgoing terminal needs to be considered, resulting in a tedious design process and high limitations. SUMMARY

[0003] The utility model aims at: in view of the prior art exists problem, put forward a kind of low-voltage cabinet outgoing terminal protection subassembly, meet the isolation requirement of form 4b in national standard, with the characteristics of simple design, easy installation.

[0004] In order to achieve the above purpose, a low-voltage cabinet outgoing terminal protection subassembly of the utility model, comprising an outgoing terminal and a protective cover configured at the position of the outgoing terminal, the bottom of the outgoing terminal is provided with a baffle connected with the protective cover, and the front end of the baffle is provided with a limiting flange.

[0005] Further, the front surface of the outgoing terminal is provided with a mounting groove.

[0006] The rear part of the protective cover is provided with a buckle matched with the mounting groove, the inside of the protective cover is provided with an interphase baffle, and the interphase baffle is arranged in Z-shaped symmetry.

[0007] The inside of the protective cover is provided with a reinforcing rib on both sides, a left side is provided with an avoiding groove, and both sides of the bottom are provided with a clamping groove.

[0008] The groove height of the clamping groove is greater than the thickness of the baffle.

[0009] The side of the baffle is in "L" shape, the baffle is connected with the clamping groove of the protective cover and is limited by the limiting folded edge.

[0010] Both sides of the baffle are provided with bosses, the width of the bosses is greater than the width of the inside of the clamping groove.

[0011] The utility model discloses simple structure, convenient to use, its beneficial effect is through only two steps' operation, namely can realize the accurate installation of protective cover and baffle, need not help any screw fastener, adopt the partition of Z type structure design in the inside, the utilization of the inside space is improved obviously, and the available space of screw fastening is effectively expanded, compared with the conventional method of 4b grade isolation using metal plate, the utility model has the remarkable advantage in the cost, and is more convenient in design. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model will be further described below in combination with the drawings.

[0013] Figure 1 It is structural schematic diagram of one embodiment of the utility model.

[0014] Figure 2 It is Figure 1 Structural schematic diagram of protective cover and baffle.

[0015] Figure 3 It is Figure 1 Structural schematic diagram of outgoing terminal.

[0016] Figure 4 It is front view of protective cover.

[0017] Figure 5 It is Figure 4 Plan view.

[0018] Figure 6 It is Figure 4 Side view.

[0019] Figure 7 It is perspective view of protective cover.

[0020] Figure 8 It is front view of baffle.

[0021] Figure 9 It is side view of baffle. DETAILED DESCRIPTION

[0022] Example one

[0023] The structure of this embodiment is as Figures 1-9As shown, a low-voltage cabinet outlet terminal protection assembly, including outlet terminal 1 and its configuration in the outlet terminal position shield 2, the bottom of the outlet terminal 1 is provided with the baffle 3 connected with the shield 2, the front end of the baffle 3 has a limit folded edge 3-1. After its installation is completed, as shown Figure 1 As shown.

[0024] The outlet terminal 1 is a general type on the market, and the front surface is provided with a mounting groove 1-1 for mounting the shield 2. The shield 2 is made of plastic material, and the rear portion is provided with a buckle 2-1 which is matched with the mounting groove 1-1 on the front surface of the outlet terminal, and the shield buckle 2-1 is inserted into the outlet terminal mounting groove 1 from top to bottom for fixing the shield; the inside is provided with an interphase baffle 2-2 which is symmetrically arranged in Z shape, plays a role of interphase isolation, and improves the space utilization, effectively increases the screw fastening space; the inside is provided with a reinforcing rib 2-3 on both sides, which increases the structural strength while being matched with the outlet terminal 1 to limit the position of the shield 2; the left side is provided with an avoidance groove 2-4 which plays a role of increasing the leftmost outlet terminal screw mounting space; the bottom is provided with a clamping groove 2-5 on both sides, and the groove height is slightly larger than the material thickness of the baffle 3, the baffle 3 can be pushed into the clamping groove 2-5 from front to back, and the baffle 3 plays a role of limiting the left and right displacement and supporting the baffle 3. The baffle 3 is made of plastic material, and the appearance is in the shape of "L", and the front portion is provided with a limit folded edge 3-1 which plays a role of limiting when the baffle 3 is pushed into the clamping groove 2-5, so that the baffle 3 cannot be continuously pushed in after being in place; the both sides are provided with a boss 3-2, so that the total width of the baffle 3 at the boss 3-2 is slightly larger than the inside width of the clamping groove 2-5 at the bottom of the shield 2, the baffle 3 is pushed into the clamping groove 2-5, and after the boss 3-2 and the clamping groove 2-5 at the bottom of the shield 2 are contacted, the baffle 3 can still push the boss 3-2 into the clamping groove 2-5 after a certain force is given to the baffle 3 due to the plastic material of the shield which has a certain deformability, and after the baffle 3 is pushed into place, the boss 3-2 just escapes from the clamping groove 2-5, which can give clear sound and tactile feedback to the operator, and the baffle 3 cannot be detached from the shield 2 without external force.

[0025] In addition to the above embodiments, the utility model can also have other implementation manners. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the utility model.

Claims

1. A low voltage switchgear outlet terminal protection assembly comprising an outlet terminal and a protection cover arranged in position with the outlet terminal, characterized in that: The bottom of the outlet terminal is provided with a baffle matched with the protective cover, the front end of the baffle is provided with a limiting flange, the rear part of the protective cover is provided with a buckle matched with the mounting groove, and the inside of the protective cover is provided with a phase-to-phase baffle.

2. The low voltage switchgear outlet terminal protection assembly of claim 1, wherein: The front surface of the outlet terminal is provided with a mounting groove.

3. The low voltage switchgear outlet terminal protection assembly of claim 1, wherein: The inside of the protective cover is provided with a reinforcing rib on both sides, an avoiding groove on the left side, and a clamping groove on the bottom.

4. The low voltage switchgear outlet terminal protection assembly of claim 3, wherein: The groove height of the clamping groove is greater than the thickness of the baffle.

5. The low voltage switchgear outlet terminal protection assembly of claim 1, wherein: The side surface of the baffle is in an "L" shape, the baffle is connected with the clamping groove of the protective cover and is limited by the limiting flange.

6. The low voltage switchgear outlet terminal protection assembly of claim 5, wherein: The baffle is provided with a boss on both sides, and the width of the boss is greater than the width of the inside of the clamping groove.

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