Base structure of distribution automation terminal
By designing an optimized ear plate and support plate structure in the base structure of the power distribution automation terminal, the problem of prone to cracks at the steel cover connection is solved, the service life is extended, the workload of staff is reduced, and the corrosion resistance is improved.
Patent Information
- Application Number
- CN202421490337.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The steel cover connections of existing power distribution automation terminals are prone to cracks, resulting in damage to anti-rust paint, rainwater corrosion and steel cover damage, increasing equipment costs and workload for staff.
An optimized base structure is designed, including steel cover, ear plate and support plate. By installing through holes, T-shaped structure of ear plates and hook-shaped structure of support plates on the sides of the steel cover, it is fixed with bolts to increase the stress area and structural stability.
It effectively reduces stress concentration at the connection, extends service life, avoids the problem of excessive local stress, reduces the workload of distribution workers, and improves the corrosion resistance of the equipment.
Smart Images
Figure CN222814276U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of power distribution automation terminals, in particular to a base structure of a power distribution automation terminal. Background Art
[0002] The distribution automation terminal (FTU) can realize functions such as data collection and monitoring, real-time collection of electrical parameters of distribution lines, equipment status and other information, which is conducive to the efficient management and precise control of the distribution network and improves the power supply quality and service level.
[0003] The existing distribution automation terminals are of box type and steel cover type. The steel cover type is usually fixed on the electric pile. The electronic part of the distribution automation terminal is installed in the steel cover to avoid exposure to the sun and rain, with strong anti-aging ability and stable operation. The outer side of the steel cover is provided with a perforated ear plate, which is connected to the steel belt or bracket of the electric pile by bolts, so that the entire distribution automation terminal is suspended next to the electric pile.
[0004] Although the connection method of the above steel cover is simple, the connection between the ear plate and the steel cover is under stress for a long time due to the heavy weight of the distribution automation terminal itself and the long-term suspension, which easily leads to cracks. After the cracks are formed, the anti-rust paint on the outer surface is damaged, and rainwater enters the gap and continuously corrodes the connection. At the same time, the steel cover and the ear plate themselves are also corroded, and the degree of damage is greatly accelerated. The ear plate and the steel cover are fixedly connected by welding. To solve this problem, the entire steel cover can only be replaced. Replacing the steel cover not only increases the workload of the distribution network staff, but also the actual service life of the steel cover is less than the design life, and the equipment cost is increased. Utility Model Content
[0005] In view of the defects in the prior art, the connection structure of the steel cover is optimized to reduce the workload of the power distribution staff. The utility model provides a base structure of a power distribution automation terminal, including a steel cover and an electric control component assembled in the steel cover; it also includes an ear plate and a support plate; the side of the steel cover is provided with a through hole, the ear plate includes a first side wall and a second side wall, the first side wall extends from the through hole, so that the second side wall is stuck on the inner side of the steel cover; the first side wall is provided with a first mounting hole located outside the steel cover; the upper part of the support plate is provided with a notch adapted to the first side wall, and the two sides of the notch are provided with second mounting holes corresponding to the first mounting hole; the lower part of the support plate extends downward along the outer surface of the steel cover to the lower side of the steel cover, and bolts are passed through the first mounting hole and the second mounting hole, so that the ear plate, the support plate and the steel cover are connected and the lower part of the support plate is pressed against the outside of the steel cover.
[0006] The beneficial effect of the device is that after the first mounting hole of the ear plate and the second mounting hole of the support plate are overlapped, the position of the mounting hole of the existing ear plate is the same, and the installation method is the same, both of which are fixed to the steel belt or bracket of the electric pile with bolts. After being fixed, the ear plate is subjected to tensile stress, while the support plate is subjected to compressive stress, and the stress area is greatly increased, the stress distribution is more reasonable, the connection structure is more solid, the service life is longer, and the problem of excessive stress in local positions is avoided.
[0007] Preferably, the second side wall is in a curved shape and is closely attached to the inner side of the steel cover. The entire second side wall serves as the contact area for the tensile stress of the ear plate, so the stress is more dispersed and the structure is more solid.
[0008] Preferably, a sealing ring is provided between the through hole and the second side wall, which can effectively solve the problem of rainwater entering the steel cover.
[0009] Preferably, the lower edge of the support plate goes around the lower edge of the steel cover and then extends upward, so that the lower edge of the support plate forms a hook-shaped structure wrapped around the lower edge of the steel cover. The hook-shaped structure is tightly attached to the inner and outer surfaces of the steel cover. The lower part of the support plate is tightly attached to the outer surface of the steel cover. Since the outer surface of the steel cover is arc-shaped, the hook-shaped structure can prevent the support plate from being misaligned with a certain longitudinal position of the alignment, thereby ensuring the supporting effect of the support plate.
[0010] Preferably, two of the first mounting holes and two of the second mounting holes are provided, and the two first mounting holes are distributed longitudinally.
[0011] Preferably, the ear plates and the support plates are both made of stainless steel.
[0012] Preferably, the first side wall is fixedly connected to the middle portion of the second side wall and the first side wall is perpendicular to the second side wall. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.
[0014] Figure 1 It is a structural schematic diagram of this embodiment;
[0015] Figure 2 for Figure 1 Right view of;
[0016] Figure 3 The connection structure between the ear plate and the support plate in this embodiment;
[0017] Figure 4 for Figure 3 Top view of the .
[0018] In the accompanying drawings, there are a steel cover 1, an ear plate 2, a support plate 3, a through hole 4, a sealing ring 5, a first side wall 6, a second side wall 7, a first mounting hole 8, a notch 9, a second mounting hole 10, and a hook structure 11. DETAILED DESCRIPTION
[0019] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.
[0020] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.
[0021] like Figure 1 As shown, this embodiment provides a base structure of a distribution automation terminal, including a steel cover 1, an ear plate 2, a support plate 3, and an electric control component assembled in the steel cover 1. The overall structure of the steel cover 1 does not change much, and only a through hole 4 is provided on the side of the steel cover 1. The through hole 4 is in the shape of a long strip and is distributed longitudinally. In addition, a sealing ring 5 is provided between the through hole 4 and the second side wall 7. The sealing ring 5 can effectively solve the problem of rainwater entering the interior of the steel cover 1.
[0022] The structure of the ear plate 2 in this embodiment is as follows:
[0023] like Figure 2 , Figure 3 As shown, the ear plate 2 includes a first side wall 6 and a second side wall 7, the first side wall 6 is fixedly connected to the middle of the second side wall 7 and the first side wall 6 is perpendicular to the second side wall 7. The ear plate 2 is in a T-shape, but the second side wall 7 is in a curved shape that can be closely attached to the inner side of the steel cover 1. The first side wall 6 extends from the through hole 4, so that the second side wall 7 is stuck on the inner side of the steel cover 1. The first side wall 6 is provided with a first mounting hole 8 located outside the steel cover 1, and two first mounting holes 8 and two second mounting holes 10 are provided, and the two first mounting holes 8 are distributed longitudinally.
[0024] The structure of the support plate 3 in this embodiment is as follows:
[0025] like Figure 3 , Figure 4As shown, the upper portion of the support plate 3 is provided with a notch 9 adapted to the first side wall 6, and the two sides of the notch 9 are provided with second mounting holes 10 corresponding to the two first mounting holes 8. The lower portion of the support plate 3 extends downward along the outer surface of the steel cover 1 to the lower edge of the steel cover 1. Specifically, the lower edge of the support plate 3 bypasses the lower edge of the steel cover 1 and then extends upward, so that the lower edge of the support plate 3 forms a hook-shaped structure 11 wrapped around the lower edge of the steel cover 1. The hook-shaped structure 11 is tightly attached to the inner and outer surfaces of the steel cover 1. The lower portion of the support plate 3 is pressed against the outer surface of the steel cover 1. Since the outer surface of the steel cover 1 is arc-shaped, the hook-shaped structure 11 can prevent the support plate 3 from being misaligned with a certain longitudinal position of the alignment, thereby ensuring the supporting effect of the support plate 3.
[0026] The materials of the ear plate 2 and the support plate 3 in this embodiment are both stainless steel, which can be directly exposed to the air and has strong anti-rust and anti-corrosion properties. During installation, two bolts are used to pass through the mounting hole, the first mounting hole 8, and the second mounting hole 10 of the electric pile steel belt in turn, and finally the bolts are tightened to complete the installation. The first side wall 6 of the ear plate 2 bears the main tensile stress, while the second side wall 7 contacts the inner surface of the steel cover 1 and forms a contact area for tensile stress. The entire support plate 3 contacts the outer surface of the steel cover 1, has a large contact area, and bears compressive stress at the same time. The tensile stress and compressive stress are widely distributed, the stress distribution is more reasonable, and there is no problem of excessive local stress. This embodiment optimizes the connection structure of the steel cover 1, and the possibility of damage to the connection of the steel cover 1 is greatly reduced, which is conducive to reducing the workload of power distribution staff.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.
Claims
1. A base structure of a distribution automation terminal, comprising a steel cover and an electric control component assembled in the steel cover; characterized in that: It also includes an ear plate and a support plate; a through hole is provided on the side of the steel cover, and the ear plate includes a first side wall and a second side wall, the first side wall extends out of the through hole, so that the second side wall is stuck on the inner side of the steel cover; the first side wall is provided with a first mounting hole located outside the steel cover; a notch is provided on the upper part of the support plate to match the first side wall, and second mounting holes corresponding to the first mounting hole are provided on both sides of the notch; the lower part of the support plate extends downward along the outer surface of the steel cover to the lower edge of the steel cover, and bolts are passed through the first mounting hole and the second mounting hole, so that the ear plate, the support plate and the steel cover are connected and the lower part of the support plate is pressed against the outside of the steel cover.
2. The base structure of a distribution automation terminal according to claim 1, characterized in that: The second side wall is in a curved shape and is closely attached to the inner side of the steel cover.
3. The base structure of a distribution automation terminal according to claim 1, characterized in that: A sealing ring is provided between the through hole and the second side wall.
4. The base structure of a distribution automation terminal according to claim 1, characterized in that: The lower edge of the support plate goes around the lower edge of the steel cover and then extends upward, so that the lower edge of the support plate forms a hook-shaped structure wrapped around the lower edge of the steel cover.
5. The base structure of a distribution automation terminal according to claim 4, characterized in that: The hook-shaped structure is closely attached to the inner surface and the outer surface of the steel cover.
6. The base structure of a distribution automation terminal according to claim 1, characterized in that: There are two first mounting holes and two second mounting holes, and the two first mounting holes are distributed longitudinally.
7. The base structure of a distribution automation terminal according to claim 1, characterized in that: The ear plates and the support plates are both made of stainless steel.
8. The base structure of a distribution automation terminal according to claim 1, characterized in that: The first side wall is fixedly connected to the middle portion of the second side wall and the first side wall is perpendicular to the second side wall.