A noise reduction mechanism for power distribution cabinets

Abstract

The utility model discloses a kind of noise reduction mechanism for switch board, it is related to switch board technical field, including cabinet, the inside side wall of cabinet is fixed with sound insulation board, first sound absorption hole is equidistantly arranged on sound insulation board, the inboard of each first sound absorption hole is provided with sound absorption pipe, second sound absorption hole of even distribution is provided on each sound absorption pipe, heat dissipation hole is provided in the bottom of cabinet side, heat dissipation hole is communicated with the first sound absorption hole of sound insulation board one side bottom, the top of cabinet is fixed with cooling mechanism, the bottom end inner wall of cabinet four corners is fixed with first rubber pad, the upper end of four first rubber pads is fixed with U type frame. In the utility model, noise is absorbed by sound insulation board, sound absorption hole and sound absorption pipe, and noise propagation is reduced;Utilize rubber pad and elastic component to reduce element vibration and noise transmission;Fan in cooling mechanism cooperates with dust filter screen, can both cooling and dust prevention, ensure normal operation of equipment, simultaneously, heat dissipation hole is combined with sound absorption structure, give consideration to heat dissipation and noise reduction.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet technology, and in particular to a noise reduction mechanism for power distribution cabinets. Background Technology

[0002] Distribution cabinets are divided into power distribution cabinets, lighting distribution cabinets, and metering cabinets, and are the final stage equipment in a power distribution system. Distribution cabinets are a general term for motor control centers. Distribution cabinets are used in situations where the load is relatively dispersed and there are fewer circuits; motor control centers are used in situations where the load is concentrated and there are more circuits.

[0003] The prior art can be referenced in the patent announcement number CN217789079U, which discloses a noise reduction mechanism for a power distribution cabinet, including a frame, a rotating frame plate rotatably disposed at the front end of the frame, and an embedded concave part disposed inside the frame; the frame has an internal concave groove for the embedded concave part to be embedded in, and internal through grooves are disposed on both sides of the internal concave part, and several abutting round caps are movably disposed on both sides of the external end of the embedded concave part. However, the external heat dissipation groove and the internal through groove of the power distribution cabinet are large in size, which can easily become noise transmission channels and weaken the sound insulation effect. Therefore, a noise reduction mechanism for a power distribution cabinet is provided now. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a noise reduction mechanism for power distribution cabinets. It absorbs noise and reduces noise transmission through sound insulation panels, sound-absorbing holes, and sound-absorbing pipes; it reduces component vibration and noise transmission by using rubber pads and elastic components; the fan in the cooling mechanism, in conjunction with a dust filter, can both cool and prevent dust, ensuring the normal operation of the equipment. At the same time, the heat dissipation holes are combined with the sound-absorbing structure to balance heat dissipation and noise reduction, overcoming the shortcomings of existing technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A noise reduction mechanism for a power distribution cabinet includes a cabinet body. A sound insulation board is fixed to the inner side wall of the cabinet body. First sound-absorbing holes are evenly spaced on the sound insulation board. A sound-absorbing tube is installed inside each first sound-absorbing hole. Each sound-absorbing tube has evenly distributed second sound-absorbing holes. A heat dissipation hole is provided at the bottom of one side of the cabinet body, communicating with the first sound-absorbing holes at the bottom of one side of the sound insulation board. A cooling mechanism is fixed to the top of the cabinet body. First rubber pads are fixed at the four corners of the bottom inner wall of the cabinet body. A U-shaped frame is fixed to the upper end of each of the four first rubber pads. A component mounting frame is connected to the U-shaped frame via an elastic component. A sealed door is provided on one side of the cabinet body.

[0007] As a further embodiment of this utility model: the elastic component includes four second rubber pads fixed at the four corners of the upper end face of the horizontal section of the U-shaped frame, and the component mounting frame is fixedly connected to the upper end of the four second rubber pads.

[0008] As a further improvement of this utility model: the top of the vertical sections on both sides of the U-shaped frame is provided with limiting grooves, and the outer walls on both sides of the component mounting frame are fixed with limiting rods, and the two limiting rods are respectively slidably engaged in the two limiting grooves.

[0009] As a further embodiment of this utility model: the cooling mechanism includes a T-shaped tube fixed to the top of the cabinet, the horizontal section of the T-shaped tube is located above the cabinet, the vertical section of the T-shaped tube is located inside the cabinet, and fans are fixed to the inner walls of both ends of the horizontal section of the T-shaped tube.

[0010] As a further improvement of this utility model, dust filters are fixed to the inner walls of the air inlet ends of both fans.

[0011] As a further improvement of this utility model: the top of the component mounting frame is provided with an air inlet, and the bottom end of the vertical section of the T-shaped tube is located at the air inlet.

[0012] As a further improvement of this utility model, the side wall of the component mounting frame is provided with component connection holes.

[0013] The beneficial effects of this utility model are as follows:

[0014] Noise is absorbed and its transmission is reduced by using sound insulation panels, sound-absorbing holes, and sound-absorbing pipes; rubber pads and elastic components are used to reduce component vibration and noise transmission; the fan in the cooling mechanism works with a dust filter to both cool and prevent dust, ensuring the normal operation of the equipment; at the same time, the heat dissipation holes are combined with the sound-absorbing structure to balance heat dissipation and noise reduction. Attached Figure Description

[0015] Figure 1 This is a first-view three-dimensional structural diagram of a noise reduction mechanism for a power distribution cabinet proposed in this utility model.

[0016] Figure 2 This is a second-view three-dimensional structural diagram of a noise reduction mechanism for a power distribution cabinet proposed in this utility model.

[0017] Figure 3 This is a third-view three-dimensional structural diagram of a noise reduction mechanism for a power distribution cabinet proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the sound insulation panel structure of a noise reduction mechanism for a power distribution cabinet proposed in this utility model.

[0019] In the diagram: 1. Cabinet; 2. U-shaped frame; 3. First rubber pad; 4. Component mounting frame; 5. Sealed door; 6. T-shaped tube; 7. Heat dissipation hole; 8. First sound absorption hole; 9. Fan; 10. Air inlet; 11. Limiting rod; 12. Limiting groove; 13. Second rubber pad; 14. Second sound absorption hole; 15. Sound insulation board; 16. Sound absorption tube. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example 1, referring to Figure 1-4 A noise reduction mechanism for a power distribution cabinet includes a cabinet body 1. A sound insulation board 15 is fixed to the inner side wall of the cabinet body 1. First sound-absorbing holes 8 are evenly spaced on the sound insulation board 15. A sound-absorbing tube 16 is installed inside each first sound-absorbing hole 8. Second sound-absorbing holes 14 are evenly distributed on each sound-absorbing tube 16. A heat dissipation hole 7 is provided at the bottom of one side of the cabinet body 1, communicating with the first sound-absorbing holes 8 at the bottom of one side of the sound insulation board 15. A cooling mechanism is fixed to the top of the cabinet body 1. First rubber pads 3 are fixed at the four corners of the bottom inner wall of the cabinet body 1. A U-shaped frame 2 is fixed to the upper end of the four first rubber pads 3. A component mounting frame 4 is connected to the U-shaped frame 2 via an elastic component. Component connection holes are provided on the side wall of the component mounting frame 4. Control components and working components can be connected to the component connection holes via bolts, thereby fixing the control components and working components in the component mounting frame 4. A sealing door 5 is provided on one side of the cabinet body 1.

[0022] The elastic component includes four second rubber pads 13 fixed at the four corners of the upper end face of the horizontal section of the U-shaped frame 2, and the component mounting frame 4 is fixedly connected to the upper end of the four second rubber pads 13.

[0023] Limiting grooves 12 are provided at the top of the vertical sections on both sides of the U-shaped frame 2. Limiting rods 11 are fixed on the outer walls of the opposite sides of the component mounting frame 4. The two limiting rods 11 are slidably engaged in the two limiting grooves 12 to reduce the shaking of the component mounting frame 4.

[0024] The flexible support of the component mounting frame 4 by the four second rubber pads 13 can reduce the impact force on the control components and working components when the handling cabinet 1 is placed with excessive force, and avoid damage to the control components and working components due to hard impact. The support of the four first rubber pads 3 can prevent the noise generated by the operation of the control components and working components from being excessively transmitted to the cabinet 1. The sound insulation board 15 and the first sound absorption hole 8 isolate and absorb some of the noise, and the sound absorption pipe 16 and the second sound absorption hole 14 further absorb the noise, thus greatly reducing the outward transmission of noise.

[0025] Example 2 is an optimization based on Example 1, specifically:

[0026] The cooling mechanism includes a T-shaped tube 6 fixed to the top of the cabinet 1. The horizontal section of the T-shaped tube 6 is located above the cabinet 1, and the vertical section of the T-shaped tube 6 is located inside the cabinet 1. Fans 9 are fixed to the inner walls of both ends of the horizontal section of the T-shaped tube 6, and dust filters are fixed to the inner walls of the air inlet ends of the two fans 9.

[0027] An air inlet 10 is provided at the top of the component mounting frame 4, and the bottom end of the vertical section of the T-shaped tube 6 is located at the air inlet 10.

[0028] The operation of the two fans 9 allows cold air from the outside to enter the component mounting frame 4 from the vertical section of the T-shaped tube 6, cooling the control components and working components, and the heat is discharged from the first sound-absorbing hole 8 at the bottom of one side of the sound insulation plate 15.

[0029] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A noise reduction mechanism for a power distribution cabinet, comprising a cabinet (1), characterized in that, The cabinet (1) has a sound insulation board (15) fixed on its inner side wall. The sound insulation board (15) has first sound absorption holes (8) arranged at equal intervals. Each first sound absorption hole (8) has a sound absorption tube (16) on its inner side. Each sound absorption tube (16) has a second sound absorption hole (14) evenly distributed on its inner side. The cabinet (1) has a heat dissipation hole (7) at the bottom of one side. The heat dissipation hole (7) is connected to the first sound absorption hole (8) at the bottom of one side of the sound insulation board (15). The top of the cabinet (1) has a cooling mechanism fixed. The bottom inner wall of the cabinet (1) has four corners fixed with first rubber pads (3). The upper ends of the four first rubber pads (3) are fixed with U-shaped frames (2). The U-shaped frames (2) are connected with component mounting frames (4) through elastic components. The cabinet (1) has a sealing door (5) on one side.

2. The noise reduction mechanism for a power distribution cabinet according to claim 1, characterized in that, The elastic component includes four second rubber pads (13) fixed at the four corners of the upper surface of the horizontal section of the U-shaped frame (2), and the component mounting frame (4) is fixedly connected to the upper end of the four second rubber pads (13).

3. The noise reduction mechanism for a power distribution cabinet according to claim 2, characterized in that, The top of the vertical sections on both sides of the U-shaped frame (2) is provided with limiting grooves (12), and the outer walls on both sides of the component mounting frame (4) are fixed with limiting rods (11). The two limiting rods (11) are slidably engaged in the two limiting grooves (12).

4. The noise reduction mechanism for a power distribution cabinet according to claim 1, characterized in that, The cooling mechanism includes a T-shaped tube (6) fixed to the top of the cabinet (1). The horizontal section of the T-shaped tube (6) is located above the cabinet (1), and the vertical section of the T-shaped tube (6) is located inside the cabinet (1). Fans (9) are fixed to the inner walls of both ends of the horizontal section of the T-shaped tube (6).

5. A noise reduction mechanism for a power distribution cabinet according to claim 4, characterized in that, Dust filters are fixed to the inner walls of the air inlet ends of both fans (9).

6. A noise reduction mechanism for a power distribution cabinet according to claim 5, characterized in that, The top of the component mounting frame (4) is provided with an air inlet (10), and the bottom of the vertical section of the T-shaped tube (6) is located at the air inlet (10).

7. A noise reduction mechanism for a power distribution cabinet according to claim 1, characterized in that, The component mounting frame (4) has component connection holes on its side wall.

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