CN111799683A - A power distribution cabinet with noise reduction structure - Google Patents

Abstract

The invention relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet with a noise reduction structure, which comprises an inner frame, wherein an outer frame is sleeved on the outer side of the inner frame, sound absorption plates are arranged on the inner wall of the outer frame and the outer wall of the inner frame, a sealing plate is arranged at an opening between the inner frame and the outer frame, a vacuum cavity is formed among the inner frame, the outer frame and the sealing plate, a leather plug is inserted into the surface of the outer frame, a sleeve is arranged on the surface of the outer frame, a protection head is sleeved on the outer side of the sleeve, and; the beneficial effects are that: the power distribution cabinet with the noise reduction structure provided by the invention adopts a double-layer frame structure, and the two sound-absorbing plates are additionally arranged in the cavity between the two frames, so that the sound-absorbing plates are prevented from being exposed outside and damaged, the two frames are vacuumized, the sound insulation effect of the frames is improved, and the noise generated by the work of electric devices in the power distribution cabinet is reduced.

Description

A power distribution cabinet with noise reduction structure

technical field

The invention relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet with a noise reduction structure.

Background technique

Power distribution cabinet is a general term for motor control center. Power distribution cabinets are used in situations where the load is relatively scattered and there are few circuits; the motor control center is used in situations where the load is concentrated and there are many circuits. Power distribution cabinet refers to the functions of on-off, control or protection in the power generation, transmission, distribution, power conversion and consumption of the power system, mainly including high-voltage circuit breakers, high-voltage isolation switches and grounding switches, high-voltage load switches, high-voltage automatic Reclosing and sectionalizers, high-voltage operating mechanisms, high-voltage explosion-proof power distribution devices and high-voltage switch cabinets, etc. The high-voltage switch manufacturing industry is an important part of the power transmission and transformation equipment manufacturing industry and occupies a very important position in the entire power industry. .

In the prior art, the power distribution cabinet has no noise reduction function, so it brings a lot of trouble to people; and when the outdoor power distribution cabinet is in rainy days, the noise generated by the raindrops falling on the awning is difficult to eliminate; and the power distribution cabinet is difficult to eliminate. Dissipating heat through the fan not only makes a lot of noise, but also causes a lot of dust to enter the inside of the power distribution cabinet.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a power distribution cabinet with a noise reduction structure to solve the above-mentioned problems in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: a power distribution cabinet with a noise reduction structure, comprising an inner frame, an outer frame is sleeved on the outer side of the inner frame, the inner wall of the outer frame and the outer wall of the inner frame are All are provided with sound-absorbing panels, a sealing panel is provided at the opening between the inner frame and the outer frame, and a vacuum cavity is formed between the inner frame, the outer frame and the sealing panel, the surface of the outer frame is plugged with a leather plug, and the outer frame is The surface of the casing is provided with a sleeve, the outer side of the sleeve is sleeved with a protective head, the surface of the protective head is provided with a finger board, the outer wall of the inner frame is provided with a first connecting plate, and the inner wall of the outer frame is provided with a second A connecting plate, a support column is arranged between the first connecting plate and the second connecting plate, a spring is sleeved on the outer side of the support column, an awning is arranged on the top surface of the outer frame, and the top surface of the awning is arranged There is a rubber cover, the top surface of the rubber cover is provided with a sponge cover, the surface of the inner frame is plugged with a heat dissipation frame, the interior of the heat dissipation frame is provided with a reinforcing mesh support plate, and the surface of the heat dissipation frame is provided with a ventilation port, and The surface of the heat dissipation frame is provided with a rain shield, the inner wall of the inner frame is provided with a connection frame, and a dust-proof installation mesh frame is inserted into the connection frame. The outer wall of the dust installation grid is provided with a connecting head, and the interior of the connecting head is screwed with a fixing screw, and the fixing screw penetrates the connecting frame. The end of the pulling rod is provided with a fixing plate, the surface of the fixing plate is provided with a reserved hole, and the surface of the pulling rod is provided with a reinforcing rib plate, and the reinforcing rib plate is fixed on the outer wall of the outer frame.

Preferably, both the inner frame and the outer frame are in a square frame structure, the sound-absorbing panels are in a square frame structure, and the two sound-absorbing panels are different in size.

Preferably, the leather plug head has a circular cylinder structure, the sleeve has a circular tubular structure, and the protective head has a cylindrical structure. The inner thread, the inner thread and the outer thread are matched and connected, the card finger plate has a trapezoidal plate-like structure, and a plurality of card finger plates are arranged, and the plurality of card finger plates are arranged and distributed at equal distances and equal sizes along the outer ring surface of the protective head.

Preferably, the first connecting plate and the second connecting plate are both in plate-like structure, the first connecting plate and the second connecting plate are distributed in one-to-one correspondence, there are multiple first connecting plates, and the multiple first connecting plates are along the The outer wall of the inner frame is arranged in a ring shape, the support column is in a circular column structure, a plurality of support columns are arranged, and the plurality of support columns are arranged and distributed along the long side.

Preferably, the heat dissipation frame has a square frame structure, and the heat dissipation frame is provided with two groups. The two groups of heat dissipation frames are symmetrically distributed with respect to the inner frame. The plate has a circular arc-shaped plate structure, and the length of the long side of the rain shield is equal to the length of the long side of the heat dissipation frame.

Preferably, the connecting frame is in a ring structure, the connecting frame and the cooling frame are in one-to-one correspondence, the dust-proof installation mesh frame is in a square frame structure, and the connection head is in a cylindrical structure, and the connection head is on the top surface of the dust-proof installation mesh frame and The bottom surfaces of the dust-proof mounting grids are all centered.

Preferably, the pulling rod is in an "L" shape, and there are two pulling rods. The two pulling rods are symmetrically distributed with respect to the heat dissipation frame, the fixing plate is in a square plate-like structure, and the reinforcing rib plate is in a trapezoidal plate-like structure. The surface of the reinforcing rib plate is provided with a gap, a plurality of reinforcing rib plates are arranged, and the plurality of reinforcing rib plates are arranged and distributed along the long side of the pulling rod.

Preferably, the top surface of the awning is provided with a liquid collecting bin, the liquid collecting bin has a square cylinder structure, the surface of the rubber cover is provided with water permeable holes, the surface of the liquid collecting bin is provided with a thermally conductive silica gel cover, and the surface of the liquid collecting bin is provided with a water-permeable hole. A heat-absorbing metal plate is inserted, the heat-absorbing metal plate has a "T"-shaped structure, and the heat-absorbing metal plate runs through the top plate. There are multiple, multiple fins arranged and distributed along the bottom surface of the heat-absorbing metal plate.

Compared with the prior art, the beneficial effects of the present invention are: the present invention has a reasonable structure, strong functionality, and the following advantages:

1. The power distribution cabinet with noise reduction structure proposed by the present invention adopts a double-layer frame structure, and two layers of sound-absorbing panels are added in the cavity between the two frames. Compared with the traditional externally bonded sound-absorbing panels, Avoid the sound-absorbing panel from being exposed on the outside and be damaged, and the two frames are evacuated to improve the sound insulation effect of the frame and reduce the noise generated by the operation of the electrical components inside the power distribution cabinet; and a leather plug is added to the outer frame to facilitate suction at any time. Vacuum, and add a casing and a protective head seal on the outside of the leather plug head;

2. In the power distribution cabinet with noise reduction structure proposed by the present invention, a rubber cover is added on the top of the awning to cooperate with the sponge cover to reduce the raindrops dripping on the awning, reducing the noise generated by the metal awning in rainy days, and A liquid collecting bin is set up on the top of the awning to collect rainwater. On sunny days, the rainwater inside the liquid collecting bin evaporates to dissipate heat to the awning and the cabinet at the bottom of the awning, and the heat-absorbing metal plate inserted in the liquid collecting bin extends to the inner frame. The evaporation of rainwater inside the liquid collecting bin has a cooling effect on the heat-absorbing metal plate and fins, so as to achieve the cooling of the inner frame;

3. The power distribution cabinet with noise reduction structure proposed by the present invention is provided with a heat dissipation frame on the side plate, a reinforced mesh support plate is added inside the heat dissipation frame, and a detachable dustproof installation mesh frame is added at the opening of the heat dissipation frame The dust-blocking cloth bag cover is installed to block the dust in the air flow. The size of the vent is large, which can satisfy the heat dissipation of the power distribution cabinet and avoid the entry of dust. In this way, the installation pillars of the power distribution cabinet are combined with the heat dissipation structure to save the cabinet space. At the same time, the influence of the opening of the heat dissipation structure on the strength of the power distribution cabinet is reduced.

Description of drawings

Fig. 1 is the structural representation of the present invention;

2 is a schematic diagram of the connection structure of the dust-proof installation grid frame and the connection frame of the present invention;

FIG. 3 is a schematic diagram of the connection structure between the cooling frame and the pulling rod of the present invention;

FIG. 4 is a schematic diagram of the connection structure between the pulling rod and the reinforcing rib plate of the present invention;

5 is an enlarged schematic view of the structure at A place in FIG. 1;

FIG. 6 is a schematic diagram of the connection structure of the awning and the heat-absorbing metal plate according to the present invention.

In the figure: inner frame 1, outer frame 2, sound-absorbing panel 3, vacuum chamber 4, leather plug head 5, sleeve 6, protective head 7, card finger plate 8, first connecting plate 9, second connecting plate 10, support Column 11, spring 12, awning 13, sponge cover 14, cooling rack 15, reinforced mesh support plate 16, air vent 17, rain shield 18, connecting frame 19, dust-proof installation mesh frame 20, dust-blocking cloth bag cover 21 , connecting head 22, fixing screw 23, handle 24, pulling rod 25, fixing plate 26, reserved hole 27, reinforcing rib plate 28, rubber cover 29, liquid collecting bin 30, permeable hole 31, thermally conductive silicone cover 32, suction Hot metal plate 33, fins 34.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1 to 6, the present invention provides a technical solution: a power distribution cabinet with a noise reduction structure, comprising an inner frame 1, an outer frame 2 is sleeved on the outer side of the inner frame 1, and an inner wall of the outer frame 2 and The outer walls of the inner frame 1 are provided with sound-absorbing panels 3. Both the inner frame 1 and the outer frame 2 have a square frame structure. The sound-absorbing panel 3 has a square frame structure. The two sound-absorbing panels 3 have different sizes. A sealing plate is arranged at the opening of the outer frame, and a vacuum chamber 4 is formed between the inner frame 1, the outer frame 2 and the sealing plate. , the outer side of the casing 6 is provided with a protective head 7, the surface of the protective head 7 is provided with a card finger plate 8, the leather plug head 5 is a circular cylinder structure, the casing 6 is a circular tubular structure, and the protective head 7 is a circular Cylindrical structure, the outer ring surface of the sleeve 6 is provided with an external thread, the inner ring surface of the protective head 7 is provided with an internal thread, and the internal thread is matched with the external thread. A plurality of card finger boards 8 are arranged and distributed at equal distances and equal sizes along the outer ring surface of the protective head 7;

The outer wall of the inner frame 1 is provided with a first connecting plate 9, the inner wall of the outer frame 2 is provided with a second connecting plate 10, and a support column 11 is arranged between the first connecting plate 9 and the second connecting plate 10, and the first connecting plate 9 The first connecting plate 9 and the second connecting plate 10 are distributed in a one-to-one correspondence with the second connecting plate 10. The first connecting plate 9 is provided with a plurality of first connecting plates 9 along the inner frame 1. The outer wall is arranged in a ring shape, the support column 11 is in a circular column structure, there are multiple support columns 11, and the multiple support columns 11 are arranged and distributed along the long side. The top surface of the awning 13 is provided with an awning 13; the top surface of the awning 13 is provided with a rubber cover 29, the top surface of the rubber cover 29 is provided with a sponge cover 14, and the top surface of the awning 13 is provided with a liquid collection bin 30, which collects liquid The silo 30 has a square cylinder structure, the surface of the rubber cover 29 is provided with water permeable holes 31, the surface of the liquid collecting silo 30 is provided with a thermally conductive silica gel cover 32, and the surface of the liquid collecting silo 30 is plugged with a heat-absorbing metal plate 33. The plate 33 has a "T"-shaped structure. The heat-absorbing metal plate 33 penetrates the top plates of 1 and 2. The bottom surface of the heat-absorbing metal plate 33 is provided with fins 34. The fins 34 have a square plate-like structure. The fins 34 are provided with multiple , a plurality of fins 34 are arranged and distributed along the bottom surface of the heat-absorbing metal plate 33;

The surface of the inner frame 1 is plugged with a heat dissipation frame 15, the interior of the heat dissipation frame 15 is provided with a reinforcing mesh support plate 16, the surface of the heat dissipation frame 15 is provided with a ventilation port 17, and the surface of the heat dissipation frame 15 is provided with a rain shield 18, The heat dissipation frame 15 has a square frame structure, and the heat dissipation frame 15 is provided with two groups. The two groups of heat dissipation frames 15 are symmetrically distributed with respect to the inner frame 1. The rain plate 18 is in a circular arc-shaped plate structure, the length of the long side of the rain shield 18 is equal to the length of the long side of the heat dissipation frame 15, the inner wall of the inner frame 1 is provided with a connecting frame 19, and the connecting frame 19 is internally inserted with a dust-proof installation The mesh frame 20, the dust-proof installation mesh frame 20 is provided with a dust-blocking cloth bag cover 21 inside, the outer wall of the dust-proof installation mesh frame 20 is provided with a connector 22, the connection frame 19 is in a ring structure, and the connection frame 19 and the heat dissipation frame 15 are one by one. Correspondingly, the dust-proof installation grid 20 has a square frame structure, and the connecting head 22 has a cylindrical structure. A fixed screw 23 is screwed on the inside of the screen, the fixed screw 23 penetrates the connecting frame 19, and a handle 24 is provided on the surface of the dust-proof installation mesh frame 20;

The surface of the heat dissipation frame 15 is provided with a pulling rod 25, the end of the pulling rod 25 is provided with a fixing plate 26, the surface of the fixing plate 26 is provided with a reserved hole 27, and the surface of the pulling rod 25 is provided with a reinforcing rib plate 28, The reinforcing rib plate 28 is fixed on the outer wall of the outer frame 2, the pulling rod 25 is in an “L” shape, and there are two pulling rods 25. The two pulling rods 25 are symmetrically distributed about the heat dissipation frame 15, and the fixing plate 26 is a square plate The reinforcing rib plate 28 has a trapezoidal plate-like structure, the surface of the reinforcing rib plate 28 is provided with a gap, and a plurality of reinforcing rib plates 28 are arranged and distributed along the long side of the pulling rod 25 .

Working principle: In actual use, pinch the protective head 7 by hand, and the fingers are caught between the two adjacent finger boards 8, and the protective head 7 is screwed and removed from the sleeve 6, and then the needle of the vacuum suction device is passed through the leather plug. The head 5 sucks the air inside the vacuum chamber 4. After the suction is completed, the needle is pulled out, the needle hole on the surface of the leather plug head 5 is automatically closed, and then the protective head 7 is screwed back and sealed on the sleeve 6, and the vacuum chamber 4 is formed. The pinhole improves the sound insulation effect of the power distribution cabinet, and the sound-absorbing panels 3 on both sides are added inside the vacuum chamber 4, and the sound-absorbing panels 3 are located inside the vacuum chamber 4 to avoid damage; The sound of raindrops falling on the surface of the awning 13 can reduce the noise generated by the power distribution cabinet in rainy days. A liquid collecting bin 30 is set up on the top of the awning 13 to collect rainwater. On sunny days, the evaporation of the rainwater inside the liquid collecting bin 30 is very important. The awning 13 and the cabinet at the bottom of the awning 13 dissipate heat, and the heat-absorbing metal plate 33 inserted in the liquid collecting bin 30 extends into the inner frame. The evaporation of rainwater inside the liquid collecting bin 30 affects the heat-absorbing metal plate 30 and the fins. 34 plays a cooling role, so as to achieve cooling inside the inner frame; the surface of the heat dissipation frame 15 on both sides of the power distribution cabinet is provided with air vents 17 to form convection, the size of the air vent 17 is large to meet the heat dissipation requirements, and the interior of the heat dissipation frame 15 is added with reinforcement mesh The hole support plate 16 supports, and a dustproof installation mesh frame 20 equipped with a dust-blocking cloth bag cover 21 is added at the opening of the heat dissipation frame 15 to realize the dust blocking of the ventilation airflow. The pulling rod 25 pulls the heat dissipation frame 15, The fixing plate 26 can be fixed on the wall by means of the screw penetrating the reserved hole 27 .

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

Claims (8)

1. A power distribution cabinet with a noise reduction structure, comprising an inner frame (1), characterized in that: an outer frame (2) is sleeved on the outer side of the inner frame (1), and an outer frame (2) of the outer frame (2) is provided. Both the inner wall and the outer wall of the inner frame (1) are provided with sound-absorbing panels (3), the opening between the inner frame (1) and the outer frame (2) is provided with a sealing plate, and the inner frame (1), the outer frame ( 2) A vacuum chamber (4) is formed between the sealing plate and the outer frame (2), a leather plug head (5) is inserted on the surface of the outer frame (2), and a sleeve (6) is arranged on the surface of the outer frame (2). The outer side of (6) is sleeved with a protective head (7), the surface of the protective head (7) is provided with a finger board (8), the outer wall of the inner frame (1) is provided with a first connecting plate (9), and the outer The inner wall of the frame (2) is provided with a second connecting plate (10), a supporting column (11) is provided between the first connecting plate (9) and the second connecting plate (10), and the supporting column (11) A spring (12) is set on the outer side of the outer frame (2), an awning (13) is set on the top surface of the outer frame (2), a rubber cover (29) is set on the top surface of the awning (13), and the rubber cover (29) ) is provided with a sponge cover (14) on the top surface, a heat dissipation frame (15) is inserted into the surface of the inner frame (1), and a reinforcing mesh support plate (16) is arranged inside the heat dissipation frame (15). The surface of (15) is provided with ventilation openings (17), and the surface of the heat dissipation frame (15) is provided with a rain shield (18), and the inner wall of the inner frame (1) is provided with a connecting frame (19), the connecting frame ( 19) A dust-proof installation mesh frame (20) is inserted inside, the dust-proof installation mesh frame (20) is provided with a dust-blocking cloth bag cover (21) inside, and the outer wall of the dust-proof installation mesh frame (20) is provided with a connection head (22), a fixing screw (23) is screwed on the inside of the connecting head (22), the fixing screw (23) penetrates the connecting frame (19), and a handle is provided on the surface of the dust-proof installation mesh frame (20). (24), the surface of the heat dissipation frame (15) is provided with a pulling rod (25), the end of the pulling rod (25) is provided with a fixing plate (26), and the surface of the fixing plate (26) is provided with a A hole (27) is reserved, the surface of the pulling rod (25) is provided with a reinforcing rib plate (28), and the reinforcing rib plate (28) is fixed on the outer wall of the outer frame (2). 2. A power distribution cabinet with a noise reduction structure according to claim 1, characterized in that: the inner frame (1) and the outer frame (2) are in a square frame structure, and the sound-absorbing panel (3) is in a square shape Frame structure, the size of the two sound-absorbing panels (3) are different. 3. A power distribution cabinet with a noise reduction structure according to claim 1, characterized in that: the leather plug head (5) is in a circular cylinder structure, and the sleeve (6) is in a circular tubular structure, The protective head (7) has a cylindrical structure, the outer ring surface of the sleeve (6) is provided with an external thread, the inner ring surface of the protective head (7) is provided with an internal thread, the internal thread and the external thread are matched and connected, and the finger plate is clamped. (8) It has a trapezoidal plate-like structure, and a plurality of card finger plates (8) are provided, and the plurality of card finger plates (8) are arranged and distributed at equal distances and equal sizes along the outer ring surface of the protective head (7). 4. A power distribution cabinet with a noise reduction structure according to claim 1, characterized in that: the first connecting plate (9) and the second connecting plate (10) are both plate-like structures, and the first connecting plate (9) and the second connecting plate (10) The plates (9) and the second connecting plates (10) are distributed in one-to-one correspondence, the first connecting plates (9) are provided with a plurality, and the plurality of first connecting plates (9) are arranged in a ring along the outer wall of the inner frame (1). , the support column (11) is in the form of a circular column structure, a plurality of support columns (11) are provided, and the plurality of support columns (11) are arranged and distributed along the long sides. 5. A power distribution cabinet with a noise reduction structure according to claim 1, characterized in that: the heat dissipation frame (15) has a square frame structure, and the heat dissipation frame (15) is provided with two groups, and the two groups of heat dissipation The frame (15) is symmetrically distributed with respect to the inner frame (1), the reinforcing mesh support plate (16) is in an "X"-shaped structure, the ventilation opening (17) is in a square structure, and the rain shield (18) is in a circular arc-shaped plate structure , the length of the long side of the flashing board (18) is equal to the length of the long side of the heat dissipation frame (15). 6. A power distribution cabinet with a noise reduction structure according to claim 1, characterized in that: the connecting frame (19) is in a ring-shaped structure, and the connecting frame (19) is in one-to-one correspondence with the cooling frame (15), The dust-proof installation grid (20) has a square frame structure, and the connecting head (22) has a cylindrical structure, and the connecting head (22) is on the top surface of the dust-proof installation grid (20) and the dust-proof installation grid (20) The bottom surface is centered. 7. A power distribution cabinet with a noise reduction structure according to claim 1, characterized in that: the pulling rod (25) has an "L"-shaped structure, and there are two pulling rods (25), The two pulling rods (25) are symmetrically distributed with respect to the heat dissipation frame (15), the fixing plate (26) has a square plate-like structure, the reinforcing rib plate (28) has a trapezoidal plate-like structure, and the surface of the reinforcing rib plate (28) is provided with a The notches are provided with a plurality of reinforcing ribs (28), and the plurality of reinforcing ribs (28) are arranged and distributed along the long side of the pulling rod (25). 8. A power distribution cabinet with a noise reduction structure according to claim 1, characterized in that: a liquid collecting bin (30) is provided on the top surface of the awning (13), and the liquid collecting bin (30) is in the shape of a The surface of the rubber cover (29) is provided with water permeable holes (31), the surface of the liquid collecting bin (30) is provided with a thermally conductive silica gel cover (32), and the surface of the liquid collecting bin (30) is plugged with an endothermic The metal plate (33), the heat-absorbing metal plate (33) has a "T"-shaped structure, the heat-absorbing metal plate (33) penetrates the top plates of (1) and (2), and the bottom surface of the heat-absorbing metal plate (33) is provided with fins The fins (34) and the fins (34) have a square plate-like structure, a plurality of fins (34) are provided, and the plurality of fins (34) are arranged and distributed along the bottom surface of the heat-absorbing metal plate (33).

Images