Converter transformer valve side capacitive bushing tail shielding cover

Abstract

The utility model discloses a tail shielding case of a capacitive bushing on the valve side of a converter transformer, and relates to the technical field of electric power transmission. Comprising a honeycomb cover, and soft cushions are symmetrically and fixedly connected to the outer wall of the honeycomb cover; the outer wall of the cooling assembly is fixedly connected with the outer wall of the honeycomb cover, the cooling assembly is used for reducing the temperature of the honeycomb cover by increasing the contact with air, and the outer wall of the buffering assembly is fixedly connected with the outer wall of the cooling assembly. A rubber ring and a resistance rod in the buffer assembly cooperate to form a dual-energy-consumption buffer mechanism, accidental impact force from all directions can be dealt with, damage to the honeycomb cover and precision parts in the honeycomb cover can be reduced regardless of collision in the equipment installation process, misoperation in daily operation and maintenance, sudden vibration of the surrounding environment and the like, and the service life of the honeycomb cover is prolonged. The purpose of the tail shielding case of the capacitive bushing on the valve side of the converter transformer is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power transmission technical field, concretely relates to converter transformer valve side capacitive bushing tail shielding cover. BACKGROUND

[0002] In the field of power transmission, as a key equipment, the converter transformer valve side capacitive bushing shoulders the heavy responsibility of ensuring stable current transmission. However, its operating environment is complex and changeable, and it faces many challenges that need to be solved urgently.

[0003] In actual installation scenarios, due to limited space at the construction site, inconvenience in equipment handling, and inevitable negligence in manual operation, the converter transformer valve side capacitive bushing tail shielding cover is extremely vulnerable to collision during installation. Moreover, there are risks in daily operation and maintenance, and misoperation by maintenance personnel occurs from time to time, such as tools falling and hitting, improper maintenance actions, etc. These unexpected impacts pose a serious threat to the shielding cover and its internal precision components, leading to problems such as structural deformation and part loosening, which not only affect the normal operation of the equipment, but also significantly shorten its service life, resulting in high equipment replacement costs. SUMMARY

[0004] To solve the technical problems of the prior art, the utility model adopts the technical scheme of a converter transformer valve side capacitive bushing tail shielding cover, which includes: a honeycomb cover, the outer wall of the honeycomb cover is symmetrically fixedly connected with a soft pad; a cooling assembly, the outer wall of the cooling assembly is fixedly connected with the outer wall of the honeycomb cover, the cooling assembly is used for reducing the temperature of the honeycomb cover by increasing contact with air; a temperature buffer assembly, the outer wall of the temperature buffer assembly is fixedly connected with the outer wall of the cooling assembly, the temperature buffer assembly is used for absorbing the impact force of the external environment on the honeycomb cover through deformation; the temperature buffer assembly includes a fixed plate, the outer wall of the fixed plate is slidingly connected with a limiting plate through a sliding plate, the outer wall of the sliding plate is slidingly connected with the inner wall of the limiting plate, the outer wall of the fixed plate is fixedly connected with a resistance rod, the resistance rod is linearly arrayed along the outer wall of the fixed plate, the outer wall of the resistance rod is sleeved with a rubber ring, the rubber ring is linearly arrayed along the central axis of the resistance rod, and the material of the rubber ring is rubber.

[0005] Preferably, the outer wall of the sliding plate is fixedly connected with the outer wall of the fixed plate, the outer wall of the fixed plate is in contact with the outer wall of the rubber ring, and the sliding plate limits the moving position of the fixed plate.

[0006] Preferably, the cooling assembly includes a top plate, the outer wall of the top plate is fixedly connected with a bottom plate through a temperature guide column, the outer wall of the temperature guide column is fixedly connected with the outer wall of the bottom plate, and the material of the temperature guide column is heat-conducting material.

[0007] Preferably, one end of the temperature guide column away from the bottom plate is fixedly connected with the outer wall of the top plate, the outer wall of the top plate is fixedly connected with a heat dissipation strip, and the heat dissipation strip is linearly arranged along the outer wall of the top plate, and the material of the heat dissipation strip is also heat conductive material.

[0008] Preferably, the outer wall of the heat dissipation strip is fixedly connected with the outer wall of the soft pad, the material of the soft pad is soft material, the outer wall of the top plate is fixedly connected with the outer wall of the honeycomb cover, and one side of the honeycomb cover away from the top plate is fixedly connected with the outer wall of the bottom plate.

[0009] Preferably, the outer wall of the temperature guide column is fixedly connected with the inner wall of the honeycomb cover, the outer wall of the top plate is fixedly connected with one side of the resistance rod away from the fixed plate, the position of the resistance rod is limited by the top plate, the inner wall of the top plate is fixedly connected with the outer wall of the limiting plate, and the outer wall of the top plate is in contact with the outer wall of the rubber ring.

[0010] The beneficial effects of the utility model are as follows:

[0011] 1. The utility model discloses a buffering assembly, and a double energy consumption buffering mechanism formed by the rubber ring in the buffering assembly and the resistance rod cooperates to cope with accidental impact force from all directions, whether collision in the equipment installation process, misoperation during daily operation and maintenance or sudden vibration of the surrounding environment, can reduce the damage to the honeycomb cover and the internal precise components, avoid structural deformation, part loosening and other problems, thereby significantly prolonging the service life of the shielding cover and the whole valve side capacitor bushing of the converter transformer, and reducing equipment updating cost.

[0012] 2. The utility model discloses a cooling assembly, and the heat conduction and heat convection of the temperature guide column and the heat dissipation strip cooperate to timely dissipate the heat accumulated in the honeycomb cover, maintain its operation in the suitable temperature range, which not only prevents the performance degradation of the shielding cover caused by high temperature, such as electromagnetic shielding efficiency reduction and structural strength weakening, but also creates a good thermal environment for other components connected thereto, reduces component aging and fault hidden danger caused by overheating, and improves the operation reliability of the whole valve side capacitor bushing tail region of the converter transformer. ACCURATE DRAWINGS

[0013] Figure 1 It is the perspective view of the utility model;

[0014] Figure 2 It is the exploded structural schematic view of the utility model;

[0015] Figure 3 It is the exploded structural schematic view of the soft pad of the utility model;

[0016] Figure 4 It is the structural schematic view of the cooling assembly of the utility model;

[0017] Figure 5 Figure is the explosion drawing of the buffer assembly.

[0018] In the figure: 1, honeycomb cover; 2, buffer assembly; 3, cooling assembly; 4, soft pad; 31, top plate; 32, temperature guide column; 33, heat dissipation strip; 34, bottom plate; 21, limiting plate; 22, rubber ring; 23, resistance rod; 24, sliding plate; 25, fixed plate. DETAILED DESCRIPTION

[0019] The utility model makes further detailed explanation in combination with the drawings and specific implementation. The embodiment of the utility model is given for example and description, and is not exhaustive or limit the utility model to the disclosed form. Many modifications and changes are obvious to those skilled in the art. The embodiment is selected and described to better illustrate the principle and practical application of the utility model, and enable those skilled in the art to understand the utility model to design various embodiments with various modifications suitable for specific purposes.

[0020] Embodiment:

[0021] Please refer to Figure 1 - Figure 5 The utility model provides a technical scheme: converter transformer valve side capacitance formula bushing tail shielding cover, include: honeycomb cover 1, the outer wall of honeycomb cover 1 is fixedly connected with soft pad 4 in symmetry;Cooling assembly 3, the outer wall of cooling assembly 3 is fixedly connected with the outer wall of honeycomb cover 1, and cooling assembly 3 is used to reduce the temperature of honeycomb cover 1 by increasing the contact with air buffer assembly 2, the outer wall of buffer assembly 2 is fixedly connected with the outer wall of cooling assembly 3, and buffer assembly 2 is used to absorb the impact force of honeycomb cover 1 by deformation;Buffer assembly 2 includes fixed plate 25, the outer wall of fixed plate 25 is slidably connected with limiting plate 21 through sliding plate 24, and the outer wall of sliding plate 24 is slidably connected with the inner wall of limiting plate 21, the outer wall of fixed plate 25 is fixedly connected with resistance rod 23, and resistance rod 23 is linear array along the outer wall of fixed plate 25, the outer wall of resistance rod 23 is sleeved with rubber ring 22, and rubber ring 22 is linear array along the central axis of resistance rod 23, the outer wall of sliding plate 24 is fixedly connected with the outer wall of fixed plate 25, the outer wall of fixed plate 25 is in contact with the outer wall of rubber ring 22, resistance rod 23 and rubber ring 22 sleeved on its outer wall play the key buffering and energy consumption effect, rubber ring 22 has elasticity, and will be deformed under external force, simultaneously, the sliding friction between resistance rod 23 and rubber ring 22 also can consume a part of impact energy, through this double energy consumption mechanism, the influence of impact force on honeycomb cover 1 and its internal components is reduced.

[0022] The cooling assembly 3 comprises a top plate 31, the outer wall of the top plate 31 is fixedly connected with a bottom plate 34 through a temperature guide column 32, the outer wall of the temperature guide column 32 is fixedly connected with the outer wall of the bottom plate 34, one end of the temperature guide column 32 away from the bottom plate 34 is fixedly connected with the outer wall of the top plate 31, the outer wall of the top plate 31 is fixedly connected with a heat dissipation strip 33, and the heat dissipation strip 33 is linearly arrayed along the outer wall of the top plate 31, the surface area of the heat dissipation strip 33 is relatively large, when in contact with external air, heat is transferred to the air through heat conduction and heat convection, so that the air takes away the heat, thereby realizing cooling of the honeycomb cover 1.

[0023] The outer wall of the heat dissipation strip 33 is fixedly connected with the outer wall of the soft pad 4, the outer wall of the top plate 31 is fixedly connected with the outer wall of the honeycomb cover 1, one side of the honeycomb cover 1 away from the top plate 31 is fixedly connected with the outer wall of the bottom plate 34, the outer wall of the temperature guide column 32 is fixedly connected with the inner wall of the honeycomb cover 1, the outer wall of the top plate 31 is fixedly connected with one side of the resistance rod 23 away from the fixed plate 25, the inner wall of the top plate 31 is fixedly connected with the outer wall of the limiting plate 21, the outer wall of the top plate 31 is in contact with the outer wall of the rubber ring 22, the heat dissipation strip 33 is fixedly connected with the outer wall of the soft pad 4, which also expands the heat dissipation area to a certain extent and enhances the heat dissipation effect, since the heat is dissipated in time, the temperature of the honeycomb cover 1 can be maintained within a relatively appropriate range, so that the performance of the material is prevented from being reduced or the electromagnetic shielding function is affected due to excessively high temperature.

[0024] Working principle:

[0025] The converter transformer valve side capacitor bushing tail shielding cover mainly comprises a honeycomb cover 1, a buffer assembly 2, a cooling assembly 3 and a soft pad 4 and the like, and each component cooperates to ensure stable operation and good performance of the bushing tail.

[0026] The honeycomb cover 1 as one of the core protection components has a unique integrated six-sided honeycomb structure, which plays a preliminary electromagnetic shielding role, can reduce the influence of external electromagnetic interference on the inside of the bushing, and ensure the stability of current transmission, and the symmetrically fixed soft pad 4 on the outer wall can play a buffering role during installation, avoiding wear or collision damage of the shielding cover and surrounding components due to rigid contact; on the other hand, during equipment operation, if there is slight vibration transmitted, the soft pad 4 can also absorb part of the vibration energy to maintain the relative stability of the shielding cover.

[0027] The buffer assembly 2 is used to cope with the impact force that the cellular cover 1 may be subjected to from the outside, when there is an external force impact, the sliding structure formed by the fixed plate 25 and the sliding plate 24 starts to play a role, the sliding plate 24 slides along the inner wall of the limiting plate 21, so that the fixed plate 25 as a whole can produce a certain displacement, in this process, the resistance rod 23 and the rubber ring 22 sleeved on the outer wall thereof play a key role in buffering and energy dissipation, the rubber ring 22 itself has elasticity and will be deformed under the action of external force, at the same time, the sliding friction force between the resistance rod 23 and the rubber ring 22 also consumes part of the impact energy, through the double energy dissipation mechanism, the influence of the impact force on the cellular cover 1 and the internal components thereof is reduced, the structural integrity of the shielding cover is protected, and it is ensured that the shielding cover can continuously and normally work.

[0028] The temperature reduction assembly 3 is responsible for controlling the temperature of the cellular cover 1, the top plate 31 is connected with the bottom plate 34 through the temperature guide column 32, the temperature guide column 32 can quickly conduct the heat in the cellular cover 1 to the top plate 31 and the bottom plate 34, the heat dissipation strip 33 arranged on the top plate 31 has a relatively large surface area, when contacting with the air outside, heat is transferred to the air through heat conduction and heat convection, so that the air takes away the heat, thereby achieving the temperature reduction of the cellular cover 1, and the heat dissipation strip 33 is fixedly connected with the outer wall of the soft pad 4, so that the heat dissipation area is also expanded to a certain extent, and the heat dissipation effect is enhanced, since the heat is timely dissipated, the temperature of the cellular cover 1 can be maintained within a relatively appropriate range, the performance of the material is prevented from being reduced or the electromagnetic shielding function is prevented from being affected due to the excessively high temperature, and the stable operation of the shielding cover at the tail of the valve side capacitive bushing of the converter transformer is ensured, so that the shielding cover at the tail of the valve side capacitive bushing of the converter transformer reliably plays a role in the entire power transmission system.

[0029] In actual operation, the cellular cover 1 first resists electromagnetic interference by virtue of the structure thereof, the soft pad 4 assists in buffering vibration, if impact force is encountered, the buffer assembly 2 quickly responds to reduce the impact energy, at the same time, the temperature reduction assembly 3 continuously works to regulate the temperature, and the components are mutually matched to comprehensively ensure the performance and safety of the shielding cover at the tail of the valve side capacitive bushing of the converter transformer, thereby contributing to the smooth operation of the power system.

[0030] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if no special description and limitation, are implemented according to the conventional means in the art.

Claims

1. A converter transformer valve side capacitor bushing tail shield characterized in that, Include: Cell cover (1), the outer wall of the cell cover (1) is symmetrically fixedly connected with a soft pad (4); Cooling assembly (3), the outer wall of the cooling assembly (3) is fixedly connected with the outer wall of the cell cover (1), the cooling assembly (3) is used for reducing the temperature of the cell cover (1) by increasing the contact with air, the outer wall of the buffer assembly (2) is fixedly connected with the outer wall of the cooling assembly (3), the buffer assembly (2) is used for absorbing the impact force of the cell cover (1) by deformation; The buffer assembly (2) comprises a fixed plate (25), the outer wall of the fixed plate (25) is slidably connected with a limiting plate (21) through a sliding plate (24), and the outer wall of the sliding plate (24) is slidably connected with the inner wall of the limiting plate (21), the outer wall of the fixed plate (25) is fixedly connected with a resistance rod (23), and the resistance rod (23) is linearly arranged along the outer wall of the fixed plate (25), the outer wall of the resistance rod (23) is sleeved with a rubber ring (22), and the rubber ring (22) is linearly arranged along the central axis of the resistance rod (23).

2. The converter transformer valve-side capacitor bushing tail shield according to claim 1, characterized in that: The outer wall of the sliding plate (24) is fixedly connected with the outer wall of the fixed plate (25), and the outer wall of the fixed plate (25) is in contact with the outer wall of the rubber ring (22).

3. The converter transformer valve-side capacitor bushing tail shield according to claim 1, characterized in that: The cooling assembly (3) comprises a top plate (31), the outer wall of the top plate (31) is fixedly connected with a bottom plate (34) through a temperature guide column (32), and the outer wall of the temperature guide column (32) is fixedly connected with the outer wall of the bottom plate (34).

4. The converter transformer valve-side capacitor bushing tail shield according to claim 3, characterized in that: The end of the temperature guide column (32) away from the bottom plate (34) is fixedly connected with the outer wall of the top plate (31), the outer wall of the top plate (31) is fixedly connected with a heat dissipation strip (33), and the heat dissipation strip (33) is linearly arranged along the outer wall of the top plate (31).

5. The converter transformer valve-side capacitive bushing tail shield according to claim 4, characterized in that: The outer wall of the heat dissipation strip (33) is fixedly connected with the outer wall of the soft pad (4), the outer wall of the top plate (31) is fixedly connected with the outer wall of the cell cover (1), and the side of the cell cover (1) away from the top plate (31) is fixedly connected with the outer wall of the bottom plate (34).

6. The converter transformer valve-side capacitive bushing tail shield according to claim 3, characterized in that: The outer wall of the temperature guide column (32) is fixedly connected with the inner wall of the cell cover (1), the outer wall of the top plate (31) is fixedly connected with the side of the resistance rod (23) away from the fixed plate (25), the inner wall of the top plate (31) is fixedly connected with the outer wall of the limiting plate (21), and the outer wall of the top plate (31) is in contact with the outer wall of the rubber ring (22).

Images