Low-voltage active filtering control cabinet

Abstract

The utility model relates to the technical field of active filtering cabinets, and discloses a low-voltage active filtering control cabinet, which comprises a base and a cabinet body, a controller device is arranged in the base, a main circuit device is arranged at the lower end of the controller device, and silencing mechanisms are arranged at two ends in the cabinet body; the silencing mechanism comprises a silencing box, one end of the silencing box is connected with the cabinet body, one end of the silencing box is provided with a collection port, the collection port is communicated with the interior of the silencing box, the silencing box is internally provided with a silencing assembly, and the outer surface of the silencing box is provided with sound discharge holes which are communicated with the silencing box; the silencing assembly comprises a gathering cover, one end of the gathering cover is connected with the silencing box, a conduction pipe is arranged at one end of the gathering cover, a silencing cavity is formed in one end of the conduction pipe, and a guide seat is arranged in the silencing cavity. According to the utility model, by arranging the silencing mechanism, the volume generated by the operation of the main circuit equipment can be effectively reduced, the influence of the operation noise on the external environment is avoided, and the comfort of the working environment is improved.

Description

Technical Field

[0001] This utility model relates to the field of active filter cabinet technology, and particularly to a low-voltage active filter control cabinet. Background Technology

[0002] A low-voltage active power filter control cabinet is a device used in power systems to compensate for harmonics and reactive power. Its main function is to detect harmonic currents in the power system and generate a compensating current that is opposite to them, thereby canceling out these harmonic currents and achieving the purpose of purifying the power grid and improving power quality.

[0003] Existing low-voltage active filter control cabinets generate noise during operation of their internal electrical equipment. These cabinets lack effective noise reduction devices, which can lead to excessive noise and impact the external environment. Therefore, we propose a low-voltage active filter control cabinet. Utility Model Content

[0004] The main purpose of this utility model is to provide a low-voltage active filter control cabinet, which can effectively solve the technical problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a low-voltage active filter control cabinet, including a base and a cabinet body, a cabinet door at one end of the cabinet body, a display screen at one end of the cabinet door, control buttons at the lower end of the display screen, a controller device inside the base, a main circuit device at the lower end of the controller device, silencing mechanisms at both ends inside the cabinet body, one end of the silencing mechanism being connected to the cabinet body; the silencing mechanism includes a silencing box, one end of the silencing box being connected to the cabinet body, a data acquisition port at one end of the silencing box being connected to the interior of the silencing box, a silencing component inside the silencing box, and a sound exhaust hole on the outer surface of the silencing box being connected to the silencing box; the silencing component includes a gathering hood, one end of the gathering hood being connected to the silencing box, a conduction tube at one end of the gathering hood, a silencing cavity at one end of the conduction tube, a guide seat inside the silencing cavity, the guide seat being installed perpendicular to the conduction tube, and one end of the guide seat being fixedly connected to the silencing cavity.

[0006] Preferably, a first silencing ring is provided on the outer side of the guide seat, one end of the first silencing ring is connected to the silencing cavity, and a second silencing ring is provided on the outer side of the first silencing ring.

[0007] Preferably, the second silencing ring and the first silencing ring are installed in an alternating manner, forming a meandering channel between the first silencing ring and the second silencing ring, allowing sound to pass through.

[0008] Preferably, a sound-absorbing layer is provided on the outside of the sound-absorbing cavity and the conduction tube, and the sound-absorbing layer is bonded to the conduction tube and the sound-absorbing cavity.

[0009] Preferably, a collection cover is provided at one end of the collection port, with the larger diameter end of the collection cover facing the main circuit equipment, and one end of the collection cover is connected to the collection port.

[0010] Preferably, the lower end of the cabinet door is provided with a heat dissipation groove, and the outer edge of the heat dissipation groove is fixedly connected to the cabinet door.

[0011] This utility model provides a low-voltage active filter control cabinet, which has the following beneficial effects:

[0012] 1. This low-voltage active filter control cabinet, by setting a silencing mechanism, can absorb the sound generated during the operation of the main electrical equipment, effectively reducing the volume of the main electrical equipment, avoiding the impact of operating noise on the external environment, and improving the comfort of the working environment.

[0013] 2. This low-voltage active filter control cabinet, by setting a sound-absorbing layer, can perform secondary sound blocking, absorb part of the sound volume, and improve the sound-absorbing effect. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the cabinet of this utility model;

[0017] Figure 3 This is a schematic diagram of the silencing mechanism of this utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged diagram of point A in the middle.

[0019] Legend:

[0020] 1. Base; 2. Cabinet; 3. Cabinet door; 4. Display screen; 5. Control button; 6. Heat dissipation duct; 7. Controller equipment; 8. Main circuit equipment; 9. Silencing mechanism; 10. Silencing box; 11. Acquisition port; 12. Acquisition cover; 13. Noise exhaust hole; 14. Concentration cover; 15. Conducting pipe; 16. Silencing cavity; 17. Guide seat; 18. First silencing ring; 19. Second silencing ring; 20. Silencing layer. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Example: Low-voltage active filter control cabinet, such as Figure 1 - Figure 4 As shown, the device includes a base 1, with a cabinet 2 mounted on top of the base 1. The cabinet 2 is a hollow shell with an opening at the front. The lower end of the cabinet 2 is fixedly connected to the base 1. A cabinet door 3 is located on one side of the cabinet 2, and one end of the cabinet door 3 is rotatably connected to the cabinet 2 via a hinge. A sealing strip is located on the end of the cabinet door 3 near the cabinet 2, and one end of the sealing strip is adhered to the cabinet door 3. A display screen 4 is located on one side of the cabinet door 3, and a control button 5 is located below the display screen 4. One end of the control button 5 is connected to the cabinet door 3. A heat dissipation groove 6 is located at the lower end of the cabinet door 3, and the outer edge of the heat dissipation groove 6 is fixedly connected to the cabinet door 3. The heat dissipation groove 6 can dissipate heat from the electrical equipment inside the cabinet 2. A controller device 7 is installed at the upper part of the interior of the cabinet 1. One end of the controller device 7 is fixedly connected to the inner wall of the cabinet 2. A main circuit device 8 is installed at the lower part of the controller device 7. One end of the main circuit device 8 is connected to the cabinet 2. The main electrical device 8 is connected to the controller device 7 and the display screen 4 through wires. The display screen 4 can display the operating status of the main electrical device 8. A silencing mechanism 9 is installed at both ends of the main electrical device 8 inside the cabinet 2. One end of the silencing mechanism 9 is fixedly connected to the interior of the cabinet 2 through bolts. The silencing mechanism 9 can silence the noise generated by the operation of the main electrical device 8 and prevent the sound generated by the operation of the main electrical device 8 from interfering with the outside world.

[0023] Furthermore, the silencing mechanism 9 includes a silencing box 10, which is a hollow shell. One end of the silencing box 10 is fixedly connected to the inner wall of the cabinet 2 by bolts. Acquisition ports 11 are evenly distributed at the end of the silencing box 10 closest to the main circuit device 8. The acquisition ports 11 are connected to the internal cavity of the silencing box 10. An acquisition cover 12 is provided at the end of the acquisition port 11 closest to the main circuit device 8. The acquisition cover 12 is a horn-shaped annular cover, installed outside the acquisition port 11. The end of the acquisition cover 12 with the larger diameter faces the main circuit device 8. The soundproof enclosure 10 is fixedly connected to the acquisition port 11 and is equipped with a soundproofing component inside. The four corners of the outer surface of the soundproof enclosure 10 are provided with sound exhaust holes 13, which are connected to the interior of the soundproof enclosure 10. In use, the acquisition cover 12 can collect the sound generated by the operation of the main electrical equipment 8. The collected sound is transmitted to the interior of the soundproof enclosure 10 through the acquisition port 11, filtered by the soundproofing component, and discharged through the sound exhaust holes 13. This can effectively reduce the sound generated by the operation of the main electrical equipment 8 and prevent the noise generated by the operation of the main electrical equipment 8 from affecting the outside world.

[0024] Furthermore, the silencing assembly includes a gathering cover 14, with hollow shells of different diameters on both sides. The end of the gathering cover 14 with the larger diameter faces the collecting cover 12. The outer edge of the gathering cover 14 is fixedly connected to the inner wall of the silencing box 10. A conduction tube 15 is provided at the end of the gathering cover 14 away from the collecting cover 12. One end of the conduction tube 15 is connected to the gathering cover 14. A silencing cavity 16 is provided at the end of the conduction tube 15 away from the gathering cover 14. One end of the silencing cavity 16 is fixedly connected to the inner wall of the silencing box 10. The interior of the silencing cavity 16 is connected to the interior of the conduction tube 15. A guide seat 17 is provided inside the silencing cavity 16 relative to the conduction tube 15. The guide seat 17 is an arc-shaped guide block with a central protrusion. The installation direction of the guide seat 17 is perpendicular to the sound flow direction inside the conduction tube 15. One end of the guide seat 17 is fixedly connected to the silencing cavity 16. Arc-shaped guide surfaces are provided around the guide seat 17. A first silencing ring is provided on the outer side of the guide seat 17. 18. The first silencing ring 18 is an annular arc-shaped barrier plate. The first silencing ring 18 is sleeved on the outside of the guide seat 17. One end of the first silencing ring 18 is fixedly connected to the inner wall of the silencing cavity 16. A second silencing ring 19 is provided on the outside of the first silencing ring 18. The second silencing ring 19 is sleeved on the outside of the first silencing ring 18. The second silencing ring 19 and the first silencing ring 18 are installed alternately. A meandering channel for sound to pass through is formed between the first silencing ring 18 and the second silencing ring 19. When the sound passes between the first silencing ring 18 and the second silencing ring 19, the first silencing ring 18 and the second silencing ring 19 can block the sound and reduce the volume of the sound. A sound-absorbing layer 20 is provided on the outside of the silencing cavity 16 and the conduction tube 15. The sound-absorbing layer 20 is made of sound-absorbing cotton made of glass fiber and mineral wool. The sound-absorbing layer 20 is installed on the outside of the conduction tube 15 and the silencing cavity 16. The sound-absorbing layer 20 can block the sound a second time and absorb part of the sound volume.

[0025] It should be noted that this utility model is a low-voltage active filter control cabinet. During use, when the main electrical equipment 8 is running, its operating status will be transmitted to the display screen 4 for display. Operators can observe the operating status of the main electrical equipment 8 by watching the display screen 4. The operating status of the main electrical equipment 8 can be adjusted using the control buttons 5. The heat dissipation slots 6 on the outside of the cabinet door 3 facilitate heat dissipation for the main electrical equipment 8 inside the cabinet 2. The sound generated by the operation of the main electrical equipment 8 is collected by the collection cover 12, and the collected sound is transmitted through the collection port. The sound is transmitted from the collection port 11 to the inside of the silencer box 10. The gathering hood 14 can collect the sound transmitted from the collection port 11 and transmit it through the conduction tube 15 to the inside of the silencer cavity 16. It is then guided to the outside through the guide seat 17. When the sound passes between the first silencer ring 18 and the second silencer ring 19, the second silencer ring 19 and the first silencer ring 18 can block the sound and reduce the volume of the sound. Finally, the sound passes through the silencer layer 20 and is discharged to the outside through the exhaust hole 13. The silencer layer 20 can provide secondary sound blocking, absorbing part of the sound volume and improving the silencer effect. By setting the silencer mechanism 9, the sound generated during the operation of the main electrical equipment 8 can be absorbed, effectively reducing the volume of the main electrical equipment 8 and preventing the operating noise from affecting the external environment, thus improving the comfort of the working environment. By setting the silencer layer 20, the sound can be blocked secondaryly, absorbing part of the sound volume and improving the silencer effect.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A low-voltage active filter control cabinet, comprising a base (1) and a cabinet (2), wherein one end of the cabinet (2) is provided with a cabinet door (3), one end of the cabinet door (3) is provided with a display screen (4), the lower end of the display screen (4) is provided with control buttons (5), the base (1) is provided with a controller device (7), and the lower end of the controller device (7) is provided with a main circuit device (8), characterized in that: The cabinet (2) has silencing mechanisms (9) at both ends inside, and one end of the silencing mechanism (9) is connected to the cabinet (2). The silencing mechanism (9) includes a silencing box (10), one end of which is connected to the cabinet (2). The silencing box (10) has a collection port (11) at one end, which is connected to the inside of the silencing box (10). The silencing box (10) has a silencing component inside, and the outer surface of the silencing box (10) has a sound exhaust hole (13) for sound exhaust. The hole (13) is connected to the silencer box (10); the silencer assembly includes a gathering cover (14), one end of which is connected to the silencer box (10), one end of which is provided with a conduction tube (15), one end of which is provided with a silencer cavity (16), and a guide seat (17) is provided inside the silencer cavity (16). The guide seat (17) is installed perpendicular to the conduction tube (15), and one end of the guide seat (17) is fixedly connected to the silencer cavity (16).

2. The low-voltage active filter control cabinet according to claim 1, characterized in that: The guide seat (17) is provided with a first silencing ring (18) on the outside, one end of the first silencing ring (18) is connected to the silencing cavity (16), and a second silencing ring (19) is provided on the outside of the first silencing ring (18).

3. The low-voltage active filter control cabinet according to claim 2, characterized in that: The second silencing ring (19) and the first silencing ring (18) are installed in an alternating manner, and a meandering channel for sound to pass through is formed between the first silencing ring (18) and the second silencing ring (19).

4. The low-voltage active filter control cabinet according to claim 1, characterized in that: The silencing cavity (16) and the conduction tube (15) are provided with a silencing layer (20), and the silencing layer (20) is bonded to the conduction tube (15) and the silencing cavity (16).

5. The low-voltage active filter control cabinet according to claim 1, characterized in that: The acquisition port (11) is provided with an acquisition cover (12) at one end. The end of the acquisition cover (12) with a larger diameter faces the main circuit device (8). One end of the acquisition cover (12) is connected to the acquisition port (11).

6. The low-voltage active filter control cabinet according to claim 1, characterized in that: The lower end of the cabinet door (3) is provided with a heat dissipation groove (6), and the outer edge of the heat dissipation groove (6) is fixedly connected to the cabinet door (3).

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