A noise-shielding circuit breaker automatic running-in system

Abstract

This invention discloses an automatic circuit breaker break-in system that shields noise, relating to the field of circuit breaker break-in technology. It includes: a soundproof room equipped with a sliding door to form a sealed space, reducing noise transmission; multiple bases fixedly attached to the soundproof room; and multiple soundproofing components respectively disposed on adjacent bases. Each soundproofing component includes a first airbag fixedly attached to an adjacent base, a second airbag and multiple lateral airbags fixedly attached to the base, and connecting airbags fixedly connected and communicating between the first airbag and the lateral airbags, and between the second airbag and the lateral airbags. This invention uses airbags to enclose the circuit breaker, hindering noise transmission during the break-in process. Therefore, even when the soundproof room is opened to replace the circuit breaker, the noise transmitted to nearby personnel is reduced, minimizing the impact on them.

Description

Technical Field

[0001] The invention relates to the technical field of circuit breaker running-in, and in particular to a noise-shielding automatic circuit breaker running-in system. Background Art

[0002] During the current manufacturing process of pneumatic ring main units, after the operating mechanism of the circuit breaker switch is installed, it is necessary to energize the operating mechanism of the circuit breaker switch and make the operating mechanism reciprocate, and perform multiple opening and closing (i.e., running-in tests) on the circuit breaker to eliminate burrs on the contact surface of the contacts and improve electrical performance, so that the internal parts of the circuit breaker can reach the best matching state before leaving the factory.

[0003] During the running-in test, the mechanical transmission in the circuit breaker will generate very strong noise. In order to reduce the impact of the above noise on nearby personnel, a soundproof room is usually installed in the factory, and the circuit breaker running-in test site is set in the soundproof room, in order to reduce the impact of the noise on nearby personnel; currently, in order to improve the efficiency of the running-in test, the running-in tests of multiple circuit breakers are carried out simultaneously in the same soundproof room. This will result in the situation that when there are circuit breakers in the soundproof room that are running-in, the circuit breaker that has completed the running-in needs to be moved out and the new circuit breaker needs to be moved in. During this process, the noise in the soundproof room is directly transmitted to the outside world, affecting nearby personnel. Summary of the invention

[0004] The invention provides a noise-shielding circuit breaker automatic running-in system to overcome the disadvantage that the influence of noise on nearby personnel cannot be reduced when performing a running-in test on the circuit breaker.

[0005] The technical solution is: a noise-shielding circuit breaker automatic running-in system, comprising:

[0006] A soundproof room, wherein the soundproof room is equipped with a sliding door, the two are used to form a sealed space to reduce the spread of noise outward;

[0007] A plurality of bases, all fixedly connected in the soundproof room, for placing circuit breakers;

[0008] A plurality of sound insulation components are respectively arranged on adjacent bases to weaken the propagation of noise during the running-in process of the circuit breaker; the sound insulation components include a first airbag, the first airbag is fixedly connected to the adjacent base, the base is fixedly connected to a second airbag and a plurality of side airbags, the first airbag and the side airbags and the second airbag and the side airbags are fixedly connected and communicated with a connecting airbag, the upper side of the first airbag is fixedly connected to a middle cover airbag, and the upper side of the second airbag is fixedly connected to symmetrically distributed side cover airbags;

[0009] A plurality of winding assemblies, respectively disposed on adjacent bases, for winding the first airbag, the second airbag, the side airbag, the connecting airbag, the middle cover airbag and the side cover airbag;

[0010] A plurality of gas injection components are respectively arranged in the first airbag and the second airbag on the adjacent bases, and are used to supply gas to the first airbag, the middle cover airbag and the side cover airbag respectively.

[0011] Furthermore, the winding assembly comprises:

[0012] A plurality of main elastic strips are fixedly connected to the adjacent bases, and the plurality of main elastic strips are respectively bonded to the inner sides of the adjacent first airbags, the adjacent second airbags, and the adjacent side airbags, and are used to roll up and reset the first airbags, the second airbags, the side airbags, and the connecting airbags. The main elastic strips in the first airbags, the second airbags, and the side airbags are all located on the side away from the circuit breaker, so as to facilitate rolling up the first airbags, the second airbags, and the side airbags outwards;

[0013] A plurality of auxiliary elastic strips are respectively bonded to the adjacent middle cover airbag and the adjacent side cover airbag, and are used to retract and reset the middle cover airbag and the side cover airbag. The auxiliary elastic strips are bonded to the upper sides of the adjacent middle cover airbag and the adjacent side cover airbag, so as to facilitate the upward retraction of the middle cover airbag and the side cover airbag.

[0014] Furthermore, the fixing position of the first airbag and the middle cover airbag and the fixing position of the second airbag and the side cover airbag are both provided with an outer fixing portion and an inner fixing portion, and the longitudinal sections of the outer fixing portion and the inner fixing portion are concentric arcs, which are used to bend the adjacent main elastic bars in the inflated state;

[0015] The main elastic bars near the outer fixing portion and the inner fixing portion are all provided with bending portions, and the middle cover airbag and the side cover airbag are respectively fixed to the adjacent bending portions.

[0016] Furthermore, the first airbag, the second airbag, the side airbag, the middle cover airbag and the side cover airbag are all provided with equidistantly distributed convex bubble portions, which are convenient for rolling up the first airbag, the second airbag, the side airbag, the middle cover airbag and the side cover airbag, and the first airbag, the second airbag, the side airbag, the middle cover airbag and the side cover airbag are all provided with supporting portions, and the supporting portions are used to support the first airbag, the second airbag, the side airbag, the middle cover airbag and the side cover airbag.

[0017] Furthermore, the connecting airbag is provided with an outer connecting portion and an inner connecting portion, and the perimeter of the cross section of the outer connecting portion is smaller than the perimeter of the cross section of the inner connecting portion.

[0018] Furthermore, the lower side of the middle cover airbag is provided with evenly distributed main heat dissipation holes, and the opposite parts of the lower side of the side cover airbags are symmetrically distributed with evenly distributed auxiliary heat dissipation holes. The main heat dissipation holes and the auxiliary heat dissipation holes are both used to cool the circuit breaker and suppress the propagation of noise generated during the running-in process of the circuit breaker.

[0019] Furthermore, in the direction from top to bottom, the central axis of the auxiliary heat dissipation hole is offset toward the middle cover airbag relative to the vertical line, so as to block the noise at the circuit breaker when the middle cover airbag is opened to observe the circuit breaker condition.

[0020] Furthermore, it also includes:

[0021] A sealing assembly is provided on the sliding door, and is used to ensure the sealing performance between the sliding door and the soundproof room. The sealing assembly includes:

[0022] An E-shaped block is fixedly connected to a side of the sliding door close to the soundproof room. A sealing strip is installed on the side of the E-shaped block close to the soundproof room. The sealing strip is sealed with the soundproof room. The cross-section of the sealing strip is C-shaped, which is used to reduce the probability of the sealing strip falling off due to friction.

[0023] Furthermore, the side walls of the soundproof room and the sliding door are composed of a seven-layer sound-absorbing and insulating composite structure, which includes four types of plates, namely, a sound insulation board, a honeycomb sandwich layer, a first perforated plate and a second perforated plate. In the direction from inside to outside, the seven-layer sound-absorbing and insulating composite structure is, in sequence, the first perforated plate, the honeycomb sandwich layer, the second perforated plate, the honeycomb sandwich layer, the sound insulation board, the honeycomb sandwich layer and the sound insulation board. The sound insulation board, the honeycomb sandwich layer, the first perforated plate and the second perforated plate are all made of metal to ensure the overall structural strength of the soundproof room.

[0024] Furthermore, the aperture of the first perforated plate is smaller than the aperture of the second perforated plate, so as to improve the sound absorption effect.

[0025] The present invention includes at least the following beneficial effects: the present invention wraps the circuit breaker with an air bag to hinder the transmission of noise during the running-in process of the circuit breaker, and then when the soundproof room is opened to replace the circuit breaker, the noise transmitted from the circuit breaker to nearby personnel can still be weakened, thereby reducing the impact on nearby personnel; by providing a convex bubble portion, the air bag is divided into a shape similar to a "bamboo mat" to facilitate its rolling up; the inflated air bag is supported by the support portion to improve the stability of the air bag; the circuit breaker is cooled by blowing air through the main heat dissipation holes and the auxiliary heat dissipation holes, and the propagation of noise is hindered by gas flow, thereby reducing the impact of noise on nearby personnel; the sealing strip is in contact with the soundproof room to enhance the sealing performance and improve the stability of the sliding door when sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure of the soundproof room, the base and the first airbag of the present invention;

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the connecting airbag and the middle cover airbag of the present invention;

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the first airbag and the second airbag of the present invention;

[0030] Figure 5 It is a three-dimensional structural cross-sectional view of the second airbag, the side airbag and the side cover airbag of the present invention;

[0031] Figure 6 The present invention is attached Figure 5 The enlarged view of point A in the middle;

[0032] Figure 7 It is a three-dimensional structural cross-sectional view of the second airbag and the side cover airbag of the present invention;

[0033] Figure 8 It is a three-dimensional structural cross-sectional view of the first airbag and the middle cover airbag of the present invention;

[0034] Fig. 9 It is a schematic diagram of the three-dimensional structure of the side cover airbag and the auxiliary elastic strip of the present invention;

[0035] Fig.10 It is a three-dimensional structural cross-sectional view of the first airbag and the connecting airbag of the present invention;

[0036] Fig.11 An exploded view of the first airbag, the second airbag and the side airbag of the present invention;

[0037] Fig.12 It is a schematic diagram of the three-dimensional structure of the sound insulation board and the honeycomb sandwich layer of the present invention;

[0038] Fig.13 It is a three-dimensional structural cross-sectional view of the soundproof room and sliding door of the present invention.

[0039] Markings in the accompanying drawings: 1-soundproof room, 2-sliding door, 201-E-shaped block, 202-sealing strip, 3-base, 4-first airbag, 401-first air injection interface, 5-second airbag, 501-external fixing part, 502-inner fixing part, 6-lateral airbag, 7-connecting airbag, 701-external connecting part, 702-inner connecting part, 8-middle cover airbag, 801-second air injection interface, 9-side cover airbag, 901-third air injection interface, 10-main elastic strip, 101-bending part, 11-auxiliary elastic strip, 111-convex bubble part, 112-support part, 12-main heat dissipation hole, 121-auxiliary heat dissipation hole, 13-sound insulation board, 131-honeycomb sandwich layer, 132-first perforated plate, 133-second perforated plate. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0041] A noise-shielded circuit breaker automatic running-in system, see Figure 1-Figure 4 , including: a soundproof room 1, the soundproof room 1 is equipped with a sliding door 2, the two are used to form a sealed space to reduce the noise from spreading outward; a plurality of bases 3, all fixedly connected in the soundproof room 1, for placing the circuit breaker; a plurality of soundproof components, respectively arranged on adjacent bases 3, for weakening the propagation of noise during the running-in process of the circuit breaker; the soundproof component includes a first airbag 4, the first airbag 4 is fixedly connected to the adjacent base 3, the base 3 is fixedly connected to the second airbag 5 and a plurality of side airbags 6, the first airbag 4 and the side airbag 6 and the second airbag 5 and the side airbag 6 They are all fixedly connected and communicated with a connecting airbag 7, a middle cover airbag 8 is fixedly connected to the upper side of the first airbag 4, and a symmetrically distributed side cover airbag 9 is fixedly connected to the upper side of the second airbag 5; a plurality of winding components are respectively arranged on adjacent bases 3, for winding up the first airbag 4, the second airbag 5, the side airbag 6, the connecting airbag 7, the middle cover airbag 8 and the side cover airbag 9; a plurality of gas injection components are respectively arranged in the first airbag 4 and the second airbag 5 on the adjacent bases 3, for supplying gas to the first airbag 4, the middle cover airbag 8 and the side cover airbag 9 respectively.

[0042] In the above scheme, it is intended to solve the problem that the circuit breaker is transferred during the automatic running-in of the circuit breaker in the soundproof room 1, so that the noise in the soundproof room 1 is transmitted and affects the nearby personnel; a soundproof window for observation can be set on the soundproof room 1, and the soundproof window consists of two layers of inner and outer organic glass, and a vacuum environment between the two. Noise isolation is achieved through the above three layers of medium. The thickness of the organic glass should be greater than or equal to 20mm to ensure the structural strength in the internal vacuum state; a layer of elastic rubber pad can be arranged between the lower side of the base 3 and the soundproof room 1 to absorb the impact generated by the operation of the circuit breaker mechanism. The first airbag 4, the second airbag 5, the side airbag 6, the connecting airbag 7, the middle cover airbag 8 and the side cover airbag 9 cooperate to form a cover with a bottom opening, which is used to "cover" the circuit breaker and weaken the propagation of noise during the running-in process of the circuit breaker.

[0043] The above-mentioned gas injection component includes a first gas injection interface 401, a second gas injection interface 801 and two third gas injection interfaces 901, wherein the first gas injection interface 401 and the second gas injection interface 801 are both installed on the lower side of the first airbag 4, the second gas injection interface 801 is connected to the middle cover airbag 8 through a catheter located in the first airbag 4, and the two third gas injection interfaces 901 are both installed on the lower side of the second airbag 5, and the third gas injection interface 901 is connected to the adjacent side cover airbag 9 through a catheter located in the second airbag 5; the above-mentioned four interfaces can be connected to separate air pumps respectively, or the first gas injection interface 401 can be connected to a separate air pump, and the second gas injection interface 801 can be connected to a separate air pump. The interface 801 and the two third air injection interfaces 901 are connected to a separate air pump to first inject air into the first airbag 4, so that the first airbag 4, the second airbag 5, the side airbag 6 and the connecting airbag 7 are expanded first and wrap the circuit breaker, then the air supply to the first airbag 4 is stopped and the air pressure in the first airbag 4 is maintained unchanged, and then the middle cover airbag 8 and the side cover airbag 9 are continuously injected with air to form a cover to "cover" the circuit breaker. In this way, the circuit breaker is wrapped to block the propagation of noise on the circuit breaker, and then when the soundproof room 1 is opened to replace the circuit breaker, the noise transmitted from the circuit breaker to nearby personnel can still be weakened, thereby reducing the impact on nearby personnel.

[0044] See also Figure 4-Figure 9 and Fig.11Furthermore, the winding assembly includes: a plurality of main elastic strips 10, which are fixed to the adjacent base 3, and the plurality of main elastic strips 10 are respectively bonded to the inner sides of the adjacent first airbag 4, the adjacent second airbag 5 and the adjacent side airbag 6, so as to make the first airbag 4, the second airbag 5, the side airbag 6 and the connecting airbag 7 to be rolled up and reset, and the main elastic strips 10 in the first airbag 4, the second airbag 5 and the side airbag 6 are all located on the side away from the circuit breaker, so as to facilitate the first airbag 4, the second airbag 5 and the side airbag 6 to be rolled outward; a plurality of auxiliary elastic strips 11, which are respectively bonded to the adjacent middle cover airbag 8 and the adjacent side cover airbag 9, so as to facilitate the rolling up of the middle cover airbag 8 and the side cover airbag 9.

[0045] In the above scheme, the purpose is to enable the cover to be freely retracted to facilitate the replacement of the circuit breaker; in the initial state: the main elastic bar 10 and the auxiliary elastic bar 11 are both in the retracted state, and in the free state, the main elastic bar 10 will bend and retract in the direction away from the center point of the base 3 (the main elastic bar 10 and the auxiliary elastic bar 11 in the attached figure are both in the charged state) to avoid the first airbag 4, the second airbag 5 and the side airbag 6 from contacting the circuit breaker during retraction and unreeling to cause damage, and the auxiliary elastic bar 11 will bend and retract upward in the free state, so that the middle cover airbag 8 and the side cover airbag 9 are retracted upward to ensure that the above two are located above the circuit breaker after inflation to cover the circuit breaker.

[0046] See also Figure 5 and Figure 6 Furthermore, the fixing positions of the first airbag 4 and the middle cover airbag 8 and the fixing positions of the second airbag 5 and the side cover airbag 9 are both provided with an outer fixing portion 501 and an inner fixing portion 502, and the longitudinal sections of the outer fixing portion 501 and the inner fixing portion 502 are concentric arcs, which are used to bend the adjacent main elastic strips 10 in the inflated state; the main elastic strips 10 near the positions of the outer fixing portion 501 and the inner fixing portion 502 are both provided with a bending portion 101, and the middle cover airbag 8 and the side cover airbag 9 are respectively fixed to the adjacent bending portions 101.

[0047] In the above scheme, the middle cover airbag 8 and the side cover airbag 9 are moved to the top of the circuit breaker; after the first airbag 4 and the second airbag 5 are inflated, the outer fixing portion 501 and the inner fixing portion 502 are fully stretched out, and the adjacent middle cover airbag 8 or the adjacent side cover airbag 9 is turned over to the top of the circuit breaker, and the adjacent bending portion 101 is bent during the turning process of the middle cover airbag 8 and the side cover airbag 9;

[0048] See also Figure 3 and Figure 5Furthermore, the first airbag 4, the second airbag 5, the side airbag 6, the middle cover airbag 8 and the side cover airbag 9 are all provided with equidistantly distributed convex portions 111, which are convenient for rolling up the first airbag 4, the second airbag 5, the side airbag 6, the middle cover airbag 8 and the side cover airbag 9, and the first airbag 4, the second airbag 5, the side airbag 6, the middle cover airbag 8 and the side cover airbag 9 are all provided with supporting portions 112, which are used to support the first airbag 4, the second airbag 5, the side airbag 6, the middle cover airbag 8 and the side cover airbag 9.

[0049] In the above scheme, the purpose is to improve the winding efficiency and at the same time improve the stability of the first airbag 4, the second airbag 5 and the side airbag 6 when they are vertical; the convex portion 111 separates the adjacent first airbag 4, the second airbag 5, the side airbag 6, the middle cover airbag 8 and the side cover airbag 9 into a shape similar to a "bamboo mat", so that there is a preset deformation path on the surface of the above airbag, which is convenient for winding it up. At the same time, the convex portion 111 can better adapt to the protruding parts on the circuit breaker, reducing the squeezing force of the above parts on the first airbag 4, the second airbag 5 and the side airbag 6; the support portion 112 is evenly stressed at all locations after inflation, playing the role of a pillar, thereby improving the stability of the first airbag 4, the second airbag 5, the side airbag 6, the middle cover airbag 8 and the side cover airbag 9 in the inflated state.

[0050] See also Fig.10 Furthermore, an outer connecting portion 701 and an inner connecting portion 702 are provided on the connecting airbag 7, and the circumference of the cross section of the outer connecting portion 701 is smaller than the circumference of the cross section of the inner connecting portion 702.

[0051] In the above scheme, the purpose is to alleviate the situation where the inner side of the connecting airbag 7 located at the corner is stretched during the rolling process; by increasing the length of the inner connecting part 702 located on the inner side, the situation where the inner side of the connecting airbag 7 is stretched during rolling is avoided, which facilitates the rolling of the cover shell and extends the service life of the connecting airbag 7.

[0052] See also Figure 8 and Fig. 9 Furthermore, evenly distributed main heat dissipation holes 12 are provided on the lower side of the middle cover airbag 8, and evenly distributed auxiliary heat dissipation holes 121 are provided on the opposite parts of the lower sides of the symmetrically distributed side cover airbags 9. The main heat dissipation holes 12 and the auxiliary heat dissipation holes 121 are both used to cool the circuit breaker and suppress the propagation of noise generated during the running-in process of the circuit breaker.

[0053] In the above scheme, the purpose is to further suppress the propagation of the noise generated by the circuit breaker; air is blown to the operating mechanism of the circuit breaker through the main heat dissipation holes 12 and the auxiliary heat dissipation holes 121, on the one hand, to take away the heat generated by the various parts of the circuit breaker during the running-in process, and on the other hand, the gas flow is used to prevent the noise from propagating through the air to the outside of the cover, thereby further suppressing the propagation of noise.

[0054] See also Fig. 9 Furthermore, in the direction from top to bottom, the central axis of the auxiliary heat dissipation hole 121 is offset toward the middle cover airbag 8 relative to the vertical line, so as to block the noise at the circuit breaker when the middle cover airbag 8 is opened to observe the circuit breaker condition.

[0055] In the above scheme, the purpose is to solve the problem that when the middle cover airbag 8 is opened to observe the circuit breaker, the noise in the cover is transmitted to the outside through the air, thereby affecting the observer; after the middle cover airbag 8 is opened, the airflow passes through the two auxiliary heat dissipation holes 121 and converges above the circuit breaker to form an air curtain, thereby suppressing the noise from being transmitted to the outside through the air at the middle cover airbag 8, thereby reducing the impact of the noise on the observer.

[0056] The winding process of the first airbag 4, the second airbag 5, the side airbag 6, the middle cover airbag 8 and the side cover airbag 9 is as follows: after the circuit breaker running-in test is completed, first stop supplying air to the middle cover airbag 8 and the side cover airbag 9, as the gas in the middle cover airbag 8 and the side cover airbag 9 is discharged through the main heat dissipation hole 12 and the auxiliary heat dissipation hole 121, the air pressure in the middle cover airbag 8 and the side cover airbag 9 gradually decreases, that is, the two gradually "soften", until the middle cover airbag 8 and the side cover airbag 9 cannot overcome the elastic force of the adjacent auxiliary elastic strip 11, the auxiliary elastic strip 11 is reset and drives The middle cover airbag 8 and the side cover airbag 9 are moved to roll up the middle cover airbag 8 and the side cover airbag 9. After the middle cover airbag 8 and the side cover airbag 9 are rolled up, the air supply to the first airbag 4 is stopped, and the gas in the first airbag 4 is slowly extracted to gradually "soften" the first airbag 4, the second airbag 5 and the side airbag 6. Finally, under the joint action of the multiple main elastic strips 10, the first airbag 4, the second airbag 5 and the side airbag 6 are rolled up. At this time, the rolled up middle cover airbag 8 and the side cover airbag 9 are respectively located in the first airbag 4 and the second airbag 5 (see attached Figure 2 The state of the first airbag 4 on the right side).

[0057] See also Fig.13 , further, it also includes: a sealing component, which is arranged on the sliding door 2, and the sealing component is used to ensure the sealing performance between the sliding door 2 and the soundproof room 1. The sealing component includes: an E-shaped block 201, and the E-shaped block 201 is fixed to the side of the sliding door 2 close to the soundproof room 1. A sealing strip 202 is installed on the side of the E-shaped block 201 close to the soundproof room 1. The sealing strip 202 is sealed with the soundproof room 1. The cross-section of the sealing strip 202 is C-shaped, which is used to reduce the probability of the sealing strip 202 falling off due to friction.

[0058] In the above scheme, the problem that the sealing effect at the contact position between the soundproof room 1 and the sliding door 2 is poor, resulting in the transmission of noise in the soundproof room 1 to the outside, is solved; the sealing strip 202 is composed of two left and right round strips and a flat plate in the middle. When the sliding door 2 moves left and closes, the sliding door 2 drives the sealing strip 202 to contact the soundproof room 1 through the E-shaped block 201. The sealing strip 202 is affected by the friction force, and the left and right sides of the sealing strip 202 are stretched outward on the left side and squeezed inward on the right side. At the same time, the flat plate part of the sealing strip 202 has a tendency to arch, which increases the squeezing force between the soundproof room 1 and ensures the sealing effect on the one hand, and increases the friction between the soundproof room 1 on the other hand, preventing the sliding action between the sliding door 2 and the soundproof room 1, and improving the stability of the sliding door 2 when sealed; the right side and the upper and lower sides of the sliding door 2 are sealed by the existing sealing structure.

[0059] See also Fig.12 Furthermore, the side walls of the soundproof room 1 and the sliding door 2 are composed of a seven-layer sound-absorbing and insulating composite structure, which includes four types of plates, namely, a soundproofing board 13, a honeycomb sandwich layer 131, a first perforated plate 132 and a second perforated plate 133. In the direction from inside to outside, the seven-layer sound-absorbing and insulating composite structure is, in sequence, the first perforated plate 132, the honeycomb sandwich layer 131, the second perforated plate 133, the honeycomb sandwich layer 131, the soundproofing board 13, the honeycomb sandwich layer 131 and the soundproofing board 13. The soundproofing board 13, the honeycomb sandwich layer 131, the first perforated plate 132 and the second perforated plate 133 are all made of metal, which is used to ensure the overall structural strength of the soundproofing room 1.

[0060] See also Fig.12 Furthermore, the aperture of the first perforated plate 132 is smaller than the aperture of the second perforated plate 133, so as to improve the sound absorption effect.

[0061] In the above scheme, the purpose is to improve the sound insulation performance of the soundproof room 1; in the direction from inside to outside, the first perforated plate 132, the honeycomb sandwich layer 131, the second perforated plate 133 and the honeycomb sandwich layer 131 constitute a sound-absorbing component, through the vibration of sound and air in the hole, under the action of friction resistance and air viscosity resistance, the sound energy is converted into heat energy and dissipated, thereby achieving the purpose of noise reduction; the honeycomb sandwich layer 131 can be made of thin-walled aluminum alloy material, which not only ensures the rigidity of the structure but also reduces the weight of the multi-layer sound-absorbing and insulating components; in the direction from outside to inside, the sound insulation board 13, the honeycomb sandwich layer 131 and the sound insulation board 13 constitute a sound insulation component, the sound insulation board 13 is the supporting frame of the soundproof room 1, and the double-layer sound insulation board 13 is made of thick steel plate to enhance the sound insulation effect. The double-layer sound insulation board 13 plays a rigid support and protection role, and has an enhanced sound insulation effect. The middle honeycomb sandwich layer 131 plays a role in sound absorption and shock reduction.

[0062] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A noise-shielding circuit breaker automatic running-in system, characterized in that: include: A soundproof room (1), wherein the soundproof room (1) is provided with a sliding door (2), the two being used to form a sealed space to reduce the propagation of noise outwards; A plurality of bases (3), all fixedly connected to the soundproof room (1), and used for placing circuit breakers; A plurality of sound insulation components are respectively arranged on adjacent bases (3) for reducing the propagation of noise during the running-in process of the circuit breaker; the sound insulation components include a first airbag (4), the first airbag (4) is fixedly connected to the adjacent base (3), the base (3) is fixedly connected to a second airbag (5) and a plurality of side airbags (6), the first airbag (4) and the side airbag (6) and the second airbag (5) and the side airbag (6) are both fixedly connected and communicated with a connecting airbag (7), the upper side of the first airbag (4) is fixedly connected to a middle cover airbag (8), and the upper side of the second airbag (5) is fixedly connected to symmetrically distributed side cover airbags (9); a plurality of winding assemblies, respectively arranged on adjacent bases (3), for winding the first airbag (4), the second airbag (5), the side airbag (6), the connecting airbag (7), the middle cover airbag (8) and the side cover airbag (9); A plurality of gas injection components are respectively arranged in the first gas bag (4) and the second gas bag (5) on the adjacent base (3), and are used to supply gas to the first gas bag (4), the middle cover gas bag (8), and the side cover gas bag (9).

2. The noise-shielding circuit breaker automatic running-in system according to claim 1, characterized in that: The winding assembly comprises: A plurality of main elastic strips (10) are fixedly connected to the adjacent base (3); the plurality of main elastic strips (10) are respectively bonded to the inner sides of the adjacent first airbag (4), the adjacent second airbag (5) and the adjacent side airbag (6), and are used to roll up and reset the first airbag (4), the second airbag (5), the side airbag (6) and the connecting airbag (7); the main elastic strips (10) in the first airbag (4), the second airbag (5) and the side airbag (6) are all located on a side thereof away from the circuit breaker, so as to facilitate rolling up the first airbag (4), the second airbag (5) and the side airbag (6) outward; A plurality of auxiliary elastic strips (11) are respectively bonded to the adjacent middle cover airbag (8) and the adjacent side cover airbag (9) and are used to roll up and reset the middle cover airbag (8) and the side cover airbag (9). The auxiliary elastic strips (11) are bonded to the upper sides of the adjacent middle cover airbag (8) and the adjacent side cover airbag (9) to facilitate rolling up the middle cover airbag (8) and the side cover airbag (9).

3. The noise-shielding circuit breaker automatic running-in system according to claim 2, characterized in that: The fixing position of the first airbag (4) and the middle cover airbag (8) and the fixing position of the second airbag (5) and the side cover airbag (9) are both provided with an outer fixing portion (501) and an inner fixing portion (502), and the longitudinal sections of the outer fixing portion (501) and the inner fixing portion (502) are concentric circular arcs, which are used to bend the adjacent main elastic strips (10) in an inflated state; The main elastic strips (10) located near the outer fixing portion (501) and the inner fixing portion (502) are each provided with a bending portion (101), and the middle cover airbag (8) and the side cover airbag (9) are respectively fixedly connected to adjacent bending portions (101).

4. The noise-shielding circuit breaker automatic running-in system according to claim 3, characterized in that: The first airbag (4), the second airbag (5), the side airbag (6), the middle cover airbag (8) and the side cover airbag (9) are all provided with convex bubble portions (111) distributed at equal intervals, so as to facilitate the reeling-up of the first airbag (4), the second airbag (5), the side airbag (6), the middle cover airbag (8) and the side cover airbag (9); the first airbag (4), the second airbag (5), the side airbag (6), the middle cover airbag (8) and the side cover airbag (9) are all provided with support portions (112), and the support portions (112) are used to support the first airbag (4), the second airbag (5), the side airbag (6), the middle cover airbag (8) and the side cover airbag (9).

5. The noise-shielding circuit breaker automatic running-in system according to claim 2, characterized in that: The connecting airbag (7) is provided with an external connecting portion (701) and an internal connecting portion (702), and the perimeter of the cross section of the external connecting portion (701) is smaller than the perimeter of the cross section of the internal connecting portion (702).

6. The noise-shielding circuit breaker automatic running-in system according to claim 4, characterized in that: The lower side of the middle cover airbag (8) is provided with evenly distributed main heat dissipation holes (12), and the opposite parts of the lower sides of the symmetrically distributed side cover airbags (9) are provided with evenly distributed auxiliary heat dissipation holes (121), and the main heat dissipation holes (12) and the auxiliary heat dissipation holes (121) are both used to cool the circuit breaker and suppress the propagation of noise generated during the circuit breaker running-in process.

7. The noise-shielding circuit breaker automatic running-in system according to claim 6, characterized in that: In the direction from top to bottom, the central axis of the auxiliary heat dissipation hole (121) is offset in the direction of the middle cover airbag (8) relative to the vertical line, so as to block the noise at the circuit breaker when the middle cover airbag (8) is opened to observe the circuit breaker condition.

8. The noise-shielding circuit breaker automatic running-in system according to claim 1, characterized in that: Also includes: A sealing component is arranged on the sliding door (2), the sealing component is used to ensure the sealing performance between the sliding door (2) and the soundproof room (1), and the sealing component comprises: An E-shaped block (201), the E-shaped block (201) being fixedly connected to a side of the sliding door (2) close to the soundproof room (1), a sealing strip (202) being installed on the side of the E-shaped block (201) close to the soundproof room (1), the sealing strip (202) being in sealing cooperation with the soundproof room (1), the cross section of the sealing strip (202) being C-shaped, and being used to reduce the probability of the sealing strip (202) falling off due to friction.

9. The noise-shielding circuit breaker automatic running-in system according to claim 8, characterized in that: The side walls of the soundproof room (1) and the sliding door (2) are both composed of a seven-layer sound-absorbing and sound-insulating composite structure, the seven-layer sound-absorbing and sound-insulating composite structure comprising four types of plates, namely, a soundproofing board (13), a honeycomb sandwich layer (131), a first perforated plate (132), and a second perforated plate (133), and in the direction from inside to outside, the seven-layer sound-absorbing and sound-insulating composite structure is, in order, the first perforated plate (132), the honeycomb sandwich layer (131), the second perforated plate (133), the honeycomb sandwich layer (131), the soundproofing board (13), the honeycomb sandwich layer (131), and the soundproofing board (13), and the soundproofing board (13), the honeycomb sandwich layer (131), the first perforated plate (132), and the second perforated plate (133) are all made of metal materials, and are used to ensure the overall structural strength of the soundproof room (1).

10. The noise-shielding circuit breaker automatic running-in system according to claim 9, characterized in that: The aperture of the first perforated plate (132) is smaller than the aperture of the second perforated plate (133), so as to improve the sound absorption effect.

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