CN214203462U

CN214203462U - Noise-reducing and shock-absorbing power capacitor

Info

Publication number: CN214203462U
Application number: CN202022916074.3U
Authority: CN
Inventors: 李钢
Original assignee: Shanghai Sharewell Like To Electrical Technology Co ltd
Current assignee: Shanghai Sharewell Like To Electrical Technology Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-09-14
Anticipated expiration: 2030-12-08

Abstract

The utility model belongs to the field of power equipment, in particular to a noise-reducing and shock-absorbing power capacitor, which comprises a noise-reducing structure, a box body, a capacitor core arranged in the box body, a core bracket arranged at the bottom side of the box body and used for bearing the capacitor core, and a vibration-isolating component arranged between the core bracket and the bottom wall of the box body; the noise reduction structure is arranged on the side wall of the box body and comprises a noise reduction bottom layer, a noise reduction top layer and a noise reduction transition layer, the noise reduction bottom layer is fixed on the side wall of the box body, and the noise reduction bottom layer and the noise reduction top layer are both of plate-shaped structures; the noise reduction bottom end part is provided with a groove, the inner side of the groove is provided with an adjusting frame, a screw rod and a driving assembly, the screw rod is arranged on the inner side of the adjusting frame, two ends of the screw rod are movably connected to the groove wall and the top end of the adjusting frame through rotating shafts respectively, and a first belt wheel and a nut are sleeved on the screw rod. The utility model discloses a structure, the vibration isolation subassembly of making an uproar falls in the setting, utilize the vibration isolation subassembly, fall the structure of making an uproar and improve the vibration isolation damping noise reduction effect for the treatment effect of noise is better.

Description

Noise-reducing and shock-absorbing power capacitor

Technical Field

The utility model relates to a power equipment field specifically is a damping type power capacitor of making an uproar falls.

Background

With the continuous investment and research and development of high-voltage and extra-high-voltage transmission projects in China, more and more high-voltage and extra-high-voltage transmission projects are founded. In the whole high-voltage and extra-high-voltage transmission system, the converter station is an important link, and the power capacitor is an important component of the converter station. The test result of the power capacitor noise test shows that: the radiation noise of a single power capacitor under the simulated working condition can reach more than 60dB (A), and the radiation noise of all power capacitors in the whole converter station which are superposed together can reach more than 90dB (A). Since environmental issues caused by noise are receiving more and more attention, how to effectively reduce the radiation noise level of the power capacitor has become an urgent engineering problem to be solved.

At present, a micropore noise reduction plate is added in a capacitor aiming at the main noise reduction measure, but the current noise reduction effect of the measure is not ideal, so that a noise reduction and shock absorption type power capacitor is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a damping type power capacitor of making an uproar falls to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a noise-reducing and shock-absorbing power capacitor comprises a noise-reducing structure, a box body, a capacitor core arranged in the box body, a core bracket arranged at the bottom side of the box body and used for bearing the capacitor core, and a vibration isolation assembly arranged between the core bracket and the bottom wall of the box body; the noise reduction structure is arranged on the side wall of the box body and comprises a noise reduction bottom layer, a noise reduction top layer and a noise reduction transition layer, the noise reduction bottom layer is fixed on the side wall of the box body, and the noise reduction bottom layer and the noise reduction top layer are both of plate-shaped structures; the end part of the noise reduction bottom layer is provided with a groove, the inner side of the groove is provided with an adjusting frame, a screw rod and a driving assembly, the screw rod is arranged on the inner side of the adjusting frame, two ends of the screw rod are respectively movably connected to the groove wall and the top end of the adjusting frame through a rotating shaft, and a first belt wheel and a nut are sleeved on the screw rod; the adjusting frame side is equipped with rectangular hole, and nut end connection has the support, and the support cross-section is L shape and its free end stretches out rectangular hole and is connected the top layer of making an uproar that falls.

Preferably, the noise reduction transition layer is connected between the noise reduction bottom layer and the noise reduction top layer, and comprises a plurality of noise reduction sections which can freely stretch and retract.

Preferably, the driving assembly comprises a motor and a second belt wheel, the motor is fixed on the inner side of the groove, the shaft end of the motor is connected with the second belt wheel, and the second belt wheel is linked with the first belt wheel through a belt.

Preferably, the vibration isolation assembly comprises a vibration isolation top seat, a vibration isolation base and a damping vibration attenuation piece connected between the vibration isolation top seat and the vibration isolation base.

Preferably, the noise reduction sections are all in a corrugated shape and are connected end to end, and the inner sides of the noise reduction sections are provided with telescopic sound absorption pads.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up noise reduction structure, vibration isolation subassembly, utilize the vibration isolation subassembly to improve the vibration isolation damping effect; the noise reduction structure utilizes a noise reduction bottom layer, a noise reduction top layer and a noise reduction transition layer to realize noise reduction treatment, noise enters the noise reduction structure from the noise reduction top layer, and is absorbed by the corrugated noise reduction transition layer, so that most of the noise is eliminated, and the noise treatment effect is better; and because the adjusting component consisting of the motor and the screw rod is arranged between the noise reduction bottom layer and the noise reduction top layer, the noise reduction top layer can be relatively close to and far away from the noise reduction bottom layer by utilizing the adjusting component, so that the transition distance of the noise reduction transition layer is increased, and the noise treatment effect of the noise reduction transition layer is realized.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the present invention.

In the figure: 1. a box body; 2. a capacitor core; 3. a core carrier; 4. a vibration isolation footstock; 5. a vibration isolation base; 6. a damping vibration attenuation member; 7. a noise reduction bottom layer; 8. a noise reduction top layer; 9. a noise reduction transition layer; 10. an adjusting bracket; 11. a screw; 12. a first pulley; 13. a nut; 14. a support; 15. a motor; 16. a second pulley.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: a noise-reducing and shock-absorbing power capacitor comprises a noise-reducing structure, a box body 1, a capacitor core 2 arranged in the box body 1, a core bracket 3 arranged at the bottom side of the box body 1 and used for supporting the capacitor core 2, and a vibration isolation assembly arranged between the core bracket 3 and the bottom wall of the box body 1; the noise reduction structure is arranged on the side wall of the box body 1 and comprises a noise reduction bottom layer 7, a noise reduction top layer 8 and a noise reduction transition layer 9, the noise reduction bottom layer 7 is fixed on the side wall of the box body 1, and the noise reduction bottom layer 7 and the noise reduction top layer 8 are both of plate-shaped structures; the end part of the noise reduction bottom layer 7 is provided with a groove, the inner side of the groove is provided with an adjusting frame 10, a screw rod 11 and a driving assembly, the screw rod 11 is arranged on the inner side of the adjusting frame 10, two ends of the screw rod 11 are movably connected to the wall of the groove and the top end of the adjusting frame 10 through rotating shafts respectively, and the screw rod 11 is sleeved with a first belt pulley 12 and a nut 13; the side end of the adjusting frame 10 is provided with a long hole, the end part of the nut 13 is connected with a support 14, the cross section of the support 14 is L-shaped, and the free end of the support extends out of the long hole and is connected with the noise reduction top layer 8.

In this embodiment, the noise reduction transition layer 9 is connected between the noise reduction bottom layer 7 and the noise reduction top layer 8, and the noise reduction transition layer 9 includes a plurality of noise reduction sections that can freely stretch and contract.

In this embodiment, the driving assembly includes a motor 15 and a second belt pulley 16, the motor 15 is fixed inside the groove, the second belt pulley 16 is connected to the shaft end of the motor 15, and the second belt pulley 16 is linked with the first belt pulley 12 through a belt.

In the present embodiment, the vibration isolation assembly includes a vibration isolation top base 4, a vibration isolation base 5, and a damping vibration isolator 6 connected between the vibration isolation top base 4 and the vibration isolation base 5.

In this embodiment, a plurality of the noise reduction sections are all in a corrugated shape and are connected end to end, and the inner sides of the noise reduction sections are provided with telescopic sound absorption pads.

In the embodiment, the noise reduction structure and the vibration isolation assembly are arranged, and the vibration isolation and damping effect is improved by the vibration isolation assembly; the noise reduction structure utilizes the noise reduction bottom layer 7, the noise reduction top layer 8 and the noise reduction transition layer 9 to realize noise reduction treatment, noise enters the noise reduction structure from the noise reduction top layer 8 and is absorbed by the wrinkled noise reduction transition layer 9, most of the noise is eliminated, and the noise treatment effect is better; and because the adjusting component consisting of the motor 15 and the screw rod 11 is arranged between the noise reduction bottom layer 7 and the noise reduction top layer 8, the noise reduction top layer 8 can be relatively close to and far away from the noise reduction bottom layer 7 by utilizing the adjusting component, so that the transition distance of the noise reduction transition layer 9 is increased, and the noise treatment effect of the noise reduction transition layer is realized.

In this embodiment, the operation of the adjusting assembly is to drive the second belt pulley 16 to operate through the motor 15, so that the second belt pulley 16 is linked with the first belt pulley 12 through the belt, and further the screw 11 rotates, the screw 11 drives the nut 13 thereon to move, and the nut 13 drives the noise reduction top layer 8 to relatively keep away from the noise reduction bottom layer 7 through the bracket 14.

It is worth noting that: the motor is connected power and is total controlled the button, and it realizes controlling it through total controlled the button, because the equipment that control button matches is equipment commonly used, belongs to current mature technology, no longer gives unnecessary details its electric connection relation and concrete circuit structure here.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A noise-reducing and shock-absorbing power capacitor is characterized by comprising a noise-reducing structure, a box body (1), a capacitor core (2) arranged in the box body (1), a core bracket (3) arranged at the bottom side of the box body (1) and used for bearing the capacitor core (2), and a vibration isolation assembly arranged between the core bracket (3) and the bottom wall of the box body (1); the noise reduction structure is arranged on the side wall of the box body (1), and comprises a noise reduction bottom layer (7), a noise reduction top layer (8) and a noise reduction transition layer (9), wherein the noise reduction bottom layer (7) is fixed on the side wall of the box body (1), and the noise reduction bottom layer (7) and the noise reduction top layer (8) are both of plate-shaped structures; a groove is formed in the end part of the noise reduction bottom layer (7), an adjusting frame (10), a screw rod (11) and a driving assembly are arranged on the inner side of the groove, the screw rod (11) is arranged on the inner side of the adjusting frame (10), two ends of the screw rod are movably connected to the wall of the groove and the top end of the adjusting frame (10) through rotating shafts respectively, and a first belt wheel (12) and a nut (13) are sleeved on the screw rod (11); the side end of the adjusting frame (10) is provided with a long hole, the end of the nut (13) is connected with a support (14), the cross section of the support (14) is L-shaped, and the free end of the support extends out of the long hole and is connected with the noise reduction top layer (8).

2. A noise and vibration reducing power capacitor as claimed in claim 1, wherein: the noise reduction transition layer (9) is connected between the noise reduction bottom layer (7) and the noise reduction top layer (8), and the noise reduction transition layer (9) comprises a plurality of noise reduction sections which can be freely stretched.

3. A noise and vibration reducing power capacitor as claimed in claim 1, wherein: the driving assembly comprises a motor (15) and a second belt wheel (16), the motor (15) is fixed on the inner side of the groove, the shaft end of the motor (15) is connected with the second belt wheel (16), and the second belt wheel (16) is linked with the first belt wheel (12) through a belt.

4. A noise and vibration reducing power capacitor as claimed in claim 1, wherein: the vibration isolation assembly comprises a vibration isolation top seat (4), a vibration isolation base (5) and a damping vibration attenuation piece (6) connected between the vibration isolation top seat (4) and the vibration isolation base (5).

5. A noise and vibration reducing power capacitor as claimed in claim 2, wherein: the noise reduction sections are all in a corrugated shape and are connected end to end, and telescopic sound absorption pads are arranged on the inner sides of the noise reduction sections.