Low-noise power distribution cabinet

Abstract

The utility model relates to the technical field of power distribution cabinets, in particular to a low-noise power distribution cabinet which comprises a power distribution cabinet assembly, the power distribution cabinet assembly comprises an outer-layer cabinet body, a cabinet door is hinged to the front face of the outer-layer cabinet body through a hinge, and rain covers are fixedly connected to the two sides of the outer wall of the outer-layer cabinet body. The inner wall of the outer-layer cabinet body is fixedly connected with an inner-layer cabinet body, and the space between the inner-layer cabinet body and the outer-layer cabinet body is filled with sound insulation cotton; the heat dissipation holes are formed in the two sides of the outer-layer cabinet body, and the inner wall, corresponding to the heat dissipation holes, of the outer-layer cabinet body is connected with a sound absorption assembly. According to the utility model, through the arrangement of the inner and outer layer structures and the cooperation of the laying of the internal sound insulation cotton, the power distribution cabinet has a good sound insulation effect, thereby greatly reducing the generation of noise, and through the arrangement of the sound absorption assemblies at the heat dissipation holes, the heat dissipation is ensured, the sound wave is blocked and weakened, and the good noise reduction effect is further improved. And the working environment nearby equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution cabinets, in particular to a low-noise distribution cabinet. Background Technique

[0002] Distribution cabinets are divided into power distribution cabinets, lighting distribution cabinets, and metering cabinets. They are the end devices of the power distribution system. Distribution cabinets are the general term for motor control centers. Distribution cabinets are used in occasions where the load is relatively scattered and the number of circuits is small; motor control centers are used in occasions where the load is concentrated and the number of circuits is large.

[0003] When the distribution cabinet is in use, due to a large number of electrical components installed inside it, certain noise will be generated during its operation. The metal cabinet body of the existing distribution cabinet is relatively thin, so it cannot effectively isolate the sound, resulting in a large amount of noise generated by the distribution cabinet, which has a certain impact on the surrounding environment and also has a certain impact on the nearby staff, reducing their work efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a low-noise distribution cabinet to solve the problems put forward in the above background technique, that is, the metal cabinet body is relatively thin, so it cannot effectively isolate the sound, resulting in a large amount of noise generated by the distribution cabinet, which has a certain impact on the surrounding environment and also has a certain impact on the nearby staff, reducing their work efficiency.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a low-noise distribution cabinet, including:

[0006] A distribution cabinet component, the distribution cabinet component includes an outer cabinet body, a cabinet door is hinged to the front of the outer cabinet body through a hinge, rain shields are fixedly connected to both sides of the outer wall of the outer cabinet body, an inner cabinet body is fixedly connected to the inner wall of the outer cabinet body, and sound insulation cotton is filled between the inner cabinet body and the outer cabinet body;

[0007] Heat dissipation holes are opened on both sides of the outer cabinet body, and a sound absorption component is connected to the inner wall of the outer cabinet body corresponding to the heat dissipation holes.

[0008] Preferably, the edge of one side of the outer cabinet body close to the cabinet door is in a convex shape, and the edge of one side of the cabinet door close to the outer cabinet body is bent.

[0009] Preferably, soft rubber pads are provided on both sides of the outer cabinet body and the cabinet door in contact with each other, and the rain shield is located above the heat dissipation hole.

[0010] Preferably, the side of the inner cabinet body close to the cabinet door is in an L shape, and the L-shaped structure is connected to the outer cabinet body through screws.

[0011] Preferably, the thickness of the sound-absorbing component is equal to the sum of the thickness of the inner cabinet body and the distance between the inner cabinet body and the outer cabinet body, and positioning grooves are provided at the positions of the inner cabinet body corresponding to the sound-absorbing component.

[0012] Preferably, the sound-absorbing component includes a frame, the frame is connected to the inner wall of the outer cabinet body by screws, and a first ventilation plate, a second ventilation plate and a third ventilation plate are fixedly connected to the inner wall of the frame.

[0013] Preferably, through holes are provided on the first ventilation plate, the second ventilation plate and the third ventilation plate, and the positions of the through holes on the second ventilation plate are the same as the positions of the heat dissipation holes, the positions of the through holes on the first ventilation plate and the third ventilation plate are the same, and the positions of the through holes on the first ventilation plate and the second ventilation plate are distributed in a left-right staggered manner.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: through the setting of the inner and outer layer structures and the laying of the internal sound insulation cotton, the power distribution cabinet has good sound insulation effect, thus greatly reducing the generation of its noise. At the same time, the setting of the sound-absorbing component at the heat dissipation holes ensures heat dissipation while achieving the blocking and weakening of sound waves, further improving the good noise reduction effect, improving the working environment near the equipment, and ensuring the work efficiency of the staff.

[0015] (1) Through the setting of the double-layer power distribution cabinet of the present utility model, sound insulation cotton is laid in the interlayer, effectively blocking and absorbing sound waves, thereby avoiding the generation of noise, making the power distribution cabinet have good noise reduction effect, reducing its noise pollution, and avoiding affecting the nearby staff.

[0016] (2) Through the setting of the sound-absorbing component of the present utility model and the distribution setting of the staggered through holes, while realizing air circulation, it can play a certain role in blocking and absorbing sound waves, thereby reducing the external transmission of noise, reducing the noise pollution of the equipment, and at the same time playing a protective effect on the nearby staff and reducing the noise impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an exploded structural schematic diagram of the present utility model;

[0018] Figure 2 is an overall structural schematic diagram of the present utility model;

[0019] Figure 3 is a sectional structural schematic diagram of the present utility model;

[0020] Figure 4 is an enlarged structural schematic diagram of A in the figure of the present utility model;

[0021] Figure 5 is an exploded structural schematic diagram of the sound-absorbing component of the present utility model.

[0022] In the figure: 1. Power distribution cabinet assembly; 11. Outer cabinet body; 12. Cabinet door; 13. Rain shield; 14. Hinge; 15. Inner cabinet body; 2. Heat dissipation holes; 3. Sound absorption assembly; 31. Frame; 32. First ventilation plate; 33. Second ventilation plate; 34. Third ventilation plate. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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, rather than all 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.

[0024] Please refer to Figures 1-5 , an embodiment provided by the present invention: a low-noise power distribution cabinet, including:

[0025] The power distribution cabinet assembly 1, the power distribution cabinet assembly 1 includes an outer cabinet body 11, the front of the outer cabinet body 11 is hinged with a cabinet door 12 through a hinge 14, both sides of the outer wall of the outer cabinet body 11 are fixedly connected with rain shields 13, the inner wall of the outer cabinet body 11 is fixedly connected with an inner cabinet body 15, and sound insulation cotton is filled between the inner cabinet body 15 and the outer cabinet body 11. When sound waves are transmitted in the air to the sound insulation cotton, it has a multi-fiber structure. When the sound waves pass through the cotton, they are reflected by countless fibers, weakening the sound wave intensity, making the sound disappear or weaken, thus achieving a good noise reduction effect. With its double-layer structure, it effectively achieves noise reduction treatment and avoids the influence of noise on the outside;

[0026] The heat dissipation holes 2 are opened on both sides of the outer cabinet body 11, and the inner wall of the outer cabinet body 11 corresponding to the heat dissipation holes 2 is connected with a sound absorption assembly 3. Through the mutual cooperation of the heat dissipation holes 2 and the sound absorption assembly 3, while further ensuring the heat dissipation of the device, the transmission of sound waves is reduced, and the noise reduction effect of the device is further improved.

[0027] Furthermore, one side of the outer cabinet body 11 close to the cabinet door 12 has a convex-shaped structure at the edge, and one side edge of the cabinet door 12 close to the outer cabinet body 11 is bent. Soft rubber pads are provided on both sides of the outer cabinet body 11 and the cabinet door 12 in contact with each other. The rain shield 13 is above the heat dissipation hole 2. Through the mutual contact of the soft rubber pads of the outer cabinet body 11 and the cabinet door 12, it can avoid the vibration noise generated by the contact between metals and further improve the mute effect when the device opens and closes the door.

[0028] Furthermore, one side of the inner cabinet body 15 close to the cabinet door 12 has an L-shaped structure, and the L-shaped structure is connected to the outer cabinet body 11 through screws, which is convenient for the installation and positioning of the inner cabinet body 15.

[0029] Further, the thickness of the sound-absorbing component 3 is equal to the sum of the thickness of the inner cabinet body 15 and the distance between the inner cabinet body 15 and the outer cabinet body 11. Positioning grooves are provided at the positions of the inner cabinet body 15 corresponding to the sound-absorbing component 3. The sound-absorbing component 3 includes a frame 31, and the frame 31 is connected to the inner wall of the outer cabinet body 11 by screws. A first ventilation plate 32, a second ventilation plate 33, and a third ventilation plate 34 are fixedly connected to the inner wall of the frame 31. Through the setting of the sound-absorbing component 3, it can better cooperate with the heat dissipation holes 2, so as to realize air circulation while reducing the transmission of sound waves, and thus achieve a good noise reduction effect.

[0030] Further, through holes are provided on the first ventilation plate 32, the second ventilation plate 33, and the third ventilation plate 34. The positions of the through holes on the second ventilation plate 33 are distributed in the same way as the positions of the holes of the heat dissipation holes 2. The positions of the through holes on the first ventilation plate 32 and the third ventilation plate 34 are distributed in the same way. The positions of the through holes on the first ventilation plate 32 and the second ventilation plate 33 are distributed in a left-right staggered manner. Through this staggered distribution, when sound waves are transmitted, they are blocked and absorbed, so that the intensity of the sound waves is weakened, and thus an effective noise reduction effect is achieved.

[0031] Working principle: The outer cabinet body 11 and the hinge 14 used in this application are both products that can be directly purchased on the market, and their principles and connection methods are all well-known prior arts to those skilled in the art, so they will not be elaborated here. When this utility model is in use, first assemble the device. When the device is in use, when the noise generated inside it is transmitted to the outside, through the setting of the sound insulation cotton and the double-layer cabinet body structure, the intensity of the sound waves is effectively weakened. At the same time, through the mutual cooperation of the sound-absorbing component 3 and the heat dissipation holes 2, the through-hole staggered structure further absorbs and weakens the transmitted sound waves, thereby effectively improving the noise reduction effect of the device and avoiding the impact of noise generation on the outside.

[0032] For those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of this utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in this utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A low-noise distribution cabinet, characterized in that: include: A power distribution cabinet assembly (1), the power distribution cabinet assembly (1) comprising an outer cabinet body (11), a cabinet door (12) being hingedly connected to the front of the outer cabinet body (11) via a hinge (14), rain covers (13) being fixedly connected to both sides of the outer wall of the outer cabinet body (11), an inner cabinet body (15) being fixedly connected to the inner wall of the outer cabinet body (11), and sound insulation cotton being filled between the inner cabinet body (15) and the outer cabinet body (11); Heat dissipation holes (2), the heat dissipation holes (2) are opened on both sides of the outer cabinet (11), and the inner wall of the outer cabinet (11) corresponding to the heat dissipation holes (2) is connected to a sound absorbing component (3).

2. A low-noise power distribution cabinet according to claim 1, characterized in that: The edge of one side of the outer cabinet body (11) close to the cabinet door (12) is in a convex shape, and the edge of one side of the cabinet door (12) close to the outer cabinet body (11) is in a bent shape.

3. A low-noise power distribution cabinet according to claim 1, characterized in that: A soft rubber pad is provided on the side where the outer cabinet body (11) and the cabinet door (12) contact each other, and the rain cover (13) is located above the heat dissipation hole (2).

4. A low-noise power distribution cabinet according to claim 1, characterized in that: The side of the inner cabinet body (15) close to the cabinet door (12) is in an L-shaped structure, and the L-shaped structure is connected to the outer cabinet body (11) via screws.

5. A low-noise power distribution cabinet according to claim 1, characterized in that: The thickness of the sound absorbing component (3) is equal to the sum of the thickness of the inner cabinet (15) and the distance between the inner cabinet (15) and the outer cabinet (11), and positioning grooves are provided at locations of the inner cabinet (15) corresponding to the sound absorbing component (3).

6. A low-noise power distribution cabinet according to claim 5, characterized in that: The sound absorbing assembly (3) comprises a frame (31), wherein the frame (31) is connected to the inner wall of the outer cabinet (11) by means of screws, and the inner wall of the frame (31) is fixedly connected with a first ventilation plate (32), a second ventilation plate (33) and a third ventilation plate (34).

7. A low-noise power distribution cabinet according to claim 6, characterized in that: The first ventilation plate (32), the second ventilation plate (33) and the third ventilation plate (34) are all provided with through holes, and the positions of the through holes of the second ventilation plate (33) are distributed in the same manner as the positions of the heat dissipation holes (2), the positions of the through holes of the first ventilation plate (32) and the third ventilation plate (34) are distributed in the same manner, and the positions of the through holes of the first ventilation plate (32) and the second ventilation plate (33) are distributed in a left-right staggered manner.

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