Low-noise distribution box

Abstract

The utility model relates to the technical field of distribution boxes, in particular to a low-noise distribution box, which comprises a box body and a rain shelter arranged above the box body. A buffer plate is arranged at the lower end in the box body, a cooling fan is installed at the upper end of the buffer plate, a plurality of first buffer springs are connected between the lower end of the buffer plate and the bottom end in the box body, second buffer springs are connected between the left and right ends of the buffer plate and the inner wall of the box body, and a supporting net located above the cooling fan is fixed to the lower end in the box body; noise pollution generated when the distribution box works can be effectively reduced, noise generated in the box body is reduced through the inner silencing pipe, the noise is reduced again through the combination of the silencing cotton and the outer silencing pipe, the noise is blocked through the silencing spacer ring, and the noise reduction effect is good. And the noise reduction time of the inner silencing pipe, the silencing cotton and the outer silencing pipe can be prolonged, so that the noise pollution generated when the distribution box works can be better reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution boxes, in particular to a low-noise distribution box. Background Art

[0002] The distribution box is a common type of power equipment. Its main function is to install switches, relays, instruments and other electrical components and connect them to the circuit. The distribution box is a low-voltage power distribution device that assembles switchgear, protective electrical appliances, measuring instruments and auxiliary equipment in a semi-enclosed or enclosed metal cabinet according to the requirements of electrical wiring. It can reasonably distribute electrical energy, facilitate the opening and closing of the circuit, and is easy to manage;

[0003] In the existing distribution box, a cooling fan is usually installed in the distribution box to assist in heat dissipation, and the heat is then discharged from the distribution box through the mesh holes of the dustproof net. However, since the cooling fan generates a large vibration noise when working, and the components in the distribution box also generate a large noise when working, if the noise reduction performance of the distribution box is poor, and the noise is directly discharged from the distribution box through the dustproof net, it will cause a large noise pollution, affecting the normal life of the surrounding residents. Moreover, when the external dust is blocked outside the distribution box by the dustproof net, the dust on the dustproof net is often difficult to clean. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a low-noise distribution box to solve the problems that the distribution box makes a lot of noise during operation and the dust screen is difficult to clean.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a low-noise distribution box, including a box body and a rain shelter, wherein the rain shelter is arranged above the box body;

[0006] A buffer plate is provided at the lower end of the box body, a cooling fan is installed at the upper end of the buffer plate, a plurality of first buffer springs are connected between the lower end of the buffer plate and the bottom end of the box body, and second buffer springs are connected between the left and right ends of the buffer plate and the inner wall of the box body, a support net located above the cooling fan is fixed at the lower end of the box body, and a sound insulation board is inlaid inside the box body;

[0007] The middle part of the upper end of the box body is connected to a first heat dissipation pipe, the upper end of the first heat dissipation pipe is connected to a second heat dissipation pipe, the inner walls of the first heat dissipation pipe and the second heat dissipation pipe are connected to sound insulation felt, the two sides of the lower end of the second heat dissipation pipe are connected to a plurality of external silencer pipes, the lower ends of the external silencer pipes are connected to dustproof nets, and silencer components are provided in the external silencer pipes;

[0008] A dust cleaning component is provided below the dustproof net.

[0009] Preferably, the silencer components include silencer cotton, an inner silencer tube and a plurality of silencer spacer rings, and the silencer cotton is connected to the inner wall of the outer silencer tube.

[0010] Preferably, the inner silencer pipe is fixed inside the outer silencer pipe, the silencer cotton is located between the inner silencer pipe and the outer silencer pipe, a plurality of silencer holes are opened on the outer surface of the inner silencer pipe, and a plurality of silencer spacer rings are fixed inside the inner silencer pipe from top to bottom.

[0011] Preferably, the dust cleaning assembly includes a motor, a main gear, a sub gear and a brush, the motor is fixed to the upper end of the box, and the main gear is connected to the power end of the motor.

[0012] Preferably, the auxiliary gear is rotatably sleeved on the outer periphery of the first heat dissipation tube, the main gear is meshed with the auxiliary gear, and the brush is fixed on the upper end of the auxiliary gear.

[0013] Preferably, support plates are fixed on both sides of the upper end of the box body, and the rain shield is located above the second heat dissipation pipe and fixed to the upper end of the support plates.

[0014] The utility model provides a low-noise distribution box, which has the following beneficial effects:

[0015] The first buffer spring and the second buffer spring are used to elastically buffer the cooling fan during operation, which is beneficial to reducing the vibration noise generated by the cooling fan during operation, and the sound insulation board is used to absorb and reduce the generated noise, which is beneficial to effectively reduce the noise pollution generated by the operation of the distribution box, and the inner silencer pipe is used to reduce the noise generated in the box, and the noise is further reduced by combining the silencer cotton and the outer silencer pipe, and the noise is blocked by the silencer isolation ring, which is beneficial to prolong the noise reduction time of the inner silencer pipe, the silencer cotton and the outer silencer pipe. In summary, under the premise that the distribution box can perform normal heat dissipation, it is also beneficial to significantly reduce the noise pollution generated by the distribution box during operation, thereby better reducing the noise pollution generated by the distribution box during operation, and the motor drives the brush to rotate, which is beneficial to conveniently clean up the dust adhering to the lower end of the dustproof, and is beneficial to ensure normal ventilation and heat dissipation of the outer silencer pipe and the inner silencer pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall internal structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the first heat dissipation pipe of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the external silencer pipe of the utility model;

[0020] Figure 5 This is a schematic diagram of the top view of the external silencer pipe of the utility model.

[0021] Figure 1-5 Middle: box body 1, first heat dissipation pipe 2, sound insulation board 3, support net 4, buffer board 5, first buffer spring 6, cooling fan 7, second buffer spring 8, second heat dissipation pipe 9, support plate 10, outer silencer pipe 11, dustproof net 12, motor 13, main gear 14, sub gear 15, brush 16, rain shelter 17, inner silencer pipe 18, silencer hole 19, silencer cotton 20, silencer spacer ring 21, sound insulation felt 22. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides a technical solution: a low-noise distribution box, comprising a box body 1 and a rain shelter 17, the rain shelter 17 is arranged above the box body 1, a buffer plate 5 is arranged at the lower end of the box body 1, a cooling fan 7 is installed at the upper end of the buffer plate 5, a plurality of first buffer springs 6 are connected between the lower end of the buffer plate 5 and the bottom end of the box body 1, a second buffer spring 8 is connected between the left and right ends of the buffer plate 5 and the inner wall of the box body 1, a supporting net 4 located above the cooling fan 7 is fixed at the lower end of the box body 1, and a sound insulation board 3 is inlaid inside the box body 1.

[0024] Through the operation of the cooling fan 7, wind blows from bottom to top through the mesh of the supporting net 4 into the box body 1, which is beneficial to auxiliary heat dissipation of the components in the box body 1, and the first buffer spring 6 and the second buffer spring 8 are combined to elastically buffer the cooling fan 7 during operation, which is beneficial to reduce the vibration noise generated by the cooling fan 7 when it is working, and the sound insulation board 3 is combined to absorb and reduce the generated noise, which is beneficial to effectively reduce the noise pollution generated by the operation of the distribution box.

[0025] In this embodiment, the middle part of the upper end of the box body 1 is connected to the first heat dissipation pipe 2, the upper end of the first heat dissipation pipe 2 is connected to the second heat dissipation pipe 9, the inner walls of the first heat dissipation pipe 2 and the second heat dissipation pipe 9 are connected with sound insulation felt 22, and both sides of the lower end of the second heat dissipation pipe 9 are connected with a plurality of external silencer pipes 11, the lower ends of the external silencer pipes 11 are connected with dustproof nets 12, and silencer components are provided in the external silencer pipes 11, and the silencer components include silencer cotton 20, inner silencer pipes 18 and a plurality of silencer spacer rings 21 The silencer cotton 20 is connected to the inner wall of the outer silencer pipe 11, the inner silencer pipe 18 is fixed in the outer silencer pipe 11, the silencer cotton 20 is located between the inner silencer pipe 18 and the outer silencer pipe 11, a plurality of silencer holes 19 are opened on the outer surface of the inner silencer pipe 18, a plurality of silencer rings 21 are fixed in the inner silencer pipe 18 from top to bottom, support plates 10 are fixed on both sides of the upper end of the box body 1, and the rain shield 17 is located above the second heat dissipation pipe 9 and fixed to the upper end of the support plate 10.

[0026] When heat is generated in the box body 1, the heat is discharged into the outer silencer pipe 11 through the first heat dissipation pipe 2 and the second heat dissipation pipe 9. Therefore, the cooperation between the outer silencer pipe 11 and the inner silencer pipe 18 is conducive to the normal discharge of the heat in the box body 1. The provision of the dustproof net 12 can prevent external dust from entering the box body 1 through the outer silencer pipe 11. When noise is generated inside the box body 1, the noise first enters the first heat dissipation pipe 2 and the second heat dissipation pipe 9. At this time, the sound insulation felt 22 of the first heat dissipation pipe 2 and the second heat dissipation pipe 9 is conducive to blocking the noise to prevent the noise from being directly dissipated through the first heat dissipation pipe 2 and the second heat dissipation pipe 9. Then the noise enters the outer silencer pipe 11 and then passes through the silencer holes on the inner silencer pipe 18. 19 effectively reduces the noise, and then combines the sound-absorbing cotton 20 and the external sound-absorbing tube 11 to reduce the noise again, and blocks the noise through multiple sound-absorbing isolation rings 21, which is beneficial to prolonging the noise reduction time of the internal sound-absorbing tube 18, the sound-absorbing cotton 20 and the external sound-absorbing tube 11. In summary, under the premise that the distribution box can perform normal heat dissipation, it is also beneficial to significantly reduce the noise pollution generated when the distribution box is working, thereby better reducing the noise pollution generated when the distribution box is working, and the rain shield 9 is shielded above the dustproof net 12 and the external sound-absorbing tube 11, and the opening of the external sound-absorbing tube 11 faces downward, which is beneficial to better prevent rainwater and dust from entering the box body 1 through the sound-absorbing tube, and is beneficial to ensuring the normal operation of the distribution box.

[0027] In this embodiment, a dust cleaning assembly is provided under the dustproof net 12, and the dust cleaning assembly includes a motor 13, a main gear 14, a sub gear 15 and a brush 16. The motor 13 is fixed to the upper end of the box body 1, the main gear 14 is connected to the power end of the motor 13, the sub gear 15 is rotatably sleeved on the outer periphery of the first heat dissipation tube 2, the main gear 14 is meshed with the sub gear 15, and the brush 16 is fixed to the upper end of the sub gear 15.

[0028] When it is necessary to clean the dust at the lower end of the dustproof net 12, the brush 16 is set to be able to clean the lower end surface of the dustproof net 12. Therefore, the main gear 14, the sub-gear 15 and the brush 16 are driven to rotate by the operation of the motor 13. When the brush 16 rotates, it is beneficial to comprehensively sweep and clean all the dustproof nets 12. Moreover, the opening of the outer silencer pipe 11 faces downward, so the dust generated by cleaning will not fall into the outer silencer pipe 11. Therefore, it is beneficial to conveniently clean the dust adhered to the lower end of the dustproof net, and it is beneficial to ensure the normal ventilation and heat dissipation of the outer silencer pipe 11 and the inner silencer pipe 18.

[0029] Working principle:

[0030] The first buffer spring 6 and the second buffer spring 8 are used to elastically buffer the cooling fan 7 during operation, which is beneficial to reducing the vibration noise generated by the cooling fan 7 during operation, and the noise generated can be absorbed and reduced in combination with the sound insulation board 3. When the noise enters the outer silencer pipe 11, the noise is effectively reduced through the silencer hole 19 on the inner silencer pipe 18, and the noise is further reduced in combination with the silencer cotton 20 and the outer silencer pipe 11, and the noise is blocked by multiple silencer rings 21, which is beneficial to prolonging the noise reduction time of the inner silencer pipe 18, the silencer cotton 20 and the outer silencer pipe 11, and the main gear 14, the sub-gear 15 and the brush 16 are driven to rotate by the motor 13, and when the brush 16 rotates, it is beneficial to comprehensively sweep and clean all the dustproof nets 12.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-noise distribution box, comprising a box body (1) and a rain shelter (17), wherein the rain shelter (17) is arranged above the box body (1), characterized in that: A buffer plate (5) is provided at the lower end of the box body (1), a cooling fan (7) is installed at the upper end of the buffer plate (5), a plurality of first buffer springs (6) are connected between the lower end of the buffer plate (5) and the bottom end of the box body (1), and second buffer springs (8) are connected between the left and right ends of the buffer plate (5) and the inner wall of the box body (1), a support net (4) located above the cooling fan (7) is fixed at the lower end of the box body (1), and a sound insulation board (3) is inlaid inside the box body (1); The middle part of the upper end of the box body (1) is connected to a first heat dissipation pipe (2), the upper end of the first heat dissipation pipe (2) is connected to a second heat dissipation pipe (9), the inner walls of the first heat dissipation pipe (2) and the second heat dissipation pipe (9) are connected to sound insulation felt (22), both sides of the lower end of the second heat dissipation pipe (9) are connected to a plurality of external silencer pipes (11), the lower ends of the external silencer pipes (11) are connected to dustproof nets (12), and silencer components are provided in the external silencer pipes (11); A dust cleaning component is provided below the dustproof net (12).

2. A low noise distribution box according to claim 1, characterized in that: The silencer components all include silencer cotton (20), an inner silencer pipe (18) and a plurality of silencer spacer rings (21), and the silencer cotton (20) is connected to the inner wall of the outer silencer pipe (11).

3. A low noise distribution box according to claim 2, characterized in that: The inner silencer pipe (18) is fixed inside the outer silencer pipe (11), the silencer cotton (20) is located between the inner silencer pipe (18) and the outer silencer pipe (11), a plurality of silencer holes (19) are opened on the outer surface of the inner silencer pipe (18), and a plurality of silencer spacer rings (21) are fixed inside the inner silencer pipe (18) from top to bottom.

4. A low noise distribution box according to claim 1, characterized in that: The dust cleaning assembly comprises a motor (13), a main gear (14), a sub-gear (15) and a brush (16); the motor (13) is fixed to the upper end of the box body (1), and the main gear (14) is connected to the power end of the motor (13).

5. A low noise distribution box according to claim 4, characterized in that: The secondary gear (15) is rotatably sleeved on the outer periphery of the first heat dissipation tube (2), the main gear (14) is meshed with the secondary gear (15), and the brush (16) is fixed to the upper end of the secondary gear (15).

6. A low noise distribution box according to claim 1, characterized in that: Support plates (10) are fixed to both sides of the upper end of the box body (1), and the rain shield (17) is located above the second heat dissipation pipe (9) and is fixed to the upper end of the support plate (10).

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