Noise reduction structure of power distribution cabinet

Abstract

The utility model relates to the technical field of power distribution cabinets, in particular to a noise reduction structure of a power distribution cabinet, which comprises a power distribution cabinet body, a placement table is fixedly mounted in the power distribution cabinet body, a power distribution board is fixedly connected to the top of the placement table, and a noise reduction assembly is arranged at the bottom of the power distribution cabinet body. The noise reduction assembly comprises a ventilation hole, the ventilation hole is formed in the bottom of the power distribution cabinet body, a mute motor is fixedly installed in the ventilation hole, the transmission end of the mute motor is fixedly connected with fan blades, and a dispersion plate is fixedly connected to the position, below the mute motor, in the ventilation hole. And strip-shaped grids are fixedly connected to the positions, located in the ventilation holes, below the dispersion plates, and sound absorption columns are fixedly connected to the bottom of the power distribution cabinet body. The noise reduction structure of the power distribution cabinet not only can effectively cool the power distribution board, but also can reduce the noise generated by the work of the power distribution board, improves the working environment of workers, and improves the personal safety of the work of the workers.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution cabinets, in particular to a noise reduction structure of a power distribution cabinet. Background Art

[0002] The distribution cabinet is divided into power distribution cabinet, lighting distribution cabinet and metering cabinet. It is the final equipment of the distribution system. The distribution cabinet is a general term for the motor control center. The distribution cabinet is suitable for occasions with relatively dispersed loads and fewer circuits; the motor control center is used in occasions with concentrated loads and more circuits.

[0003] In the process of using the existing distribution cabinet, in order to prevent the hot air in summer from damaging the inside of the distribution cabinet, air cooling is often used inside the distribution cabinet to maintain the normal operation of the distribution cabinet in summer.

[0004] However, the process of the motor driving the fan blades to rotate mixed with the current sound generated by the circuit board inside the distribution cabinet will produce a loud noise, which will affect the working environment of the staff and may even cause serious harm to the staff's body. Utility Model Content

[0005] The purpose of the utility model is to provide a noise reduction structure for a power distribution cabinet, so as to solve the problem that the noise mentioned in the above background technology will affect the working environment of the staff, and in serious cases may cause harm to the staff. To achieve the above purpose, the utility model provides the following technical solutions: a noise reduction structure for a power distribution cabinet, comprising a power distribution cabinet body, a placement table is fixedly installed inside the power distribution cabinet body, a distribution board is fixedly connected to the top of the placement table, and a noise reduction component is arranged at the bottom of the power distribution cabinet body;

[0006] The noise reduction component includes a ventilation hole, which is opened at the bottom of the power distribution cabinet body, a silent motor is fixedly installed inside the ventilation hole, a fan blade is fixedly connected to the transmission end of the silent motor, a dispersion plate is fixedly connected to the inside of the ventilation hole below the silent motor, a bar grille is fixedly connected to the inside of the ventilation hole below the dispersion plate, a sound-absorbing column is fixedly connected to the bottom of the power distribution cabinet body, a support seat is fixedly installed at the outer end of the sound-absorbing column at the bottom of the power distribution cabinet body, and an air outlet is opened on the front of the support seat;

[0007] The dispersion plate is distributed in parallel up and down to the inside of the ventilation hole, the sound-absorbing column is distributed symmetrically to the bottom of the distribution cabinet body, and the air outlet is distributed in parallel front and back to the back of the support seat. Due to the arrangement of the noise reduction component, the distribution board will generate current sound and heat during long-term operation, and then the silent motor will drive the fan blades at its transmission end to rotate, thereby accelerating the air flow into the interior of the ventilation hole, so that the air takes away most of the noise during the rapid circulation process, and then the overall circulating air is divided by the dispersion plate, and the noise in the air when it reaches the bottom will be absorbed by the sound-absorbing column, which can not only effectively cool the distribution board, but also reduce the noise generated by the operation of the distribution board, improve the working environment of the staff, and improve the personal safety of the staff.

[0008] Further preferably, a ventilation component is provided inside the distribution cabinet body, and the ventilation component includes ventilation slots, which are opened on the inner wall of the distribution cabinet body, and are symmetrically distributed on the left and right. A baffle 1 is fixedly connected to the inside of the ventilation slot, and the baffle 1 is distributed vertically and parallelly to the inside of the ventilation slot. With the setting of the ventilation component, when the silent motor drives the fan blades to rotate and accelerate the outward flow of air, the external air will simultaneously enter the interior of the distribution cabinet body through the ventilation slot, thereby achieving air circulation. At the same time, the baffle 2 can isolate the noise emitted by the distribution board to prevent the noise from escaping to the outside through the ventilation slot, effectively improving the practicality and safety, and facilitating the use of the staff.

[0009] Further preferably, a baffle plate 2 is fixedly connected to the side opposite to the ventilation slot, an air inlet hole is opened inside the baffle plate 2, and the air inlet hole is distributed vertically and parallelly to the inside of the baffle plate 2, and a wire entry hole is opened on the top of the distribution cabinet body, and the wire entry holes are distributed symmetrically left and right to the top of the distribution cabinet body.

[0010] Further preferably, a wiring assembly is provided on the back of the distribution cabinet body, and the wiring assembly includes a wiring trough, which is opened on the back of the distribution cabinet body, and is symmetrically distributed on the left and right. The inner wall of the wiring trough is fixedly connected with a spring, and the spring is symmetrically distributed to the inner wall of the wiring trough, and the top of the spring is fixedly connected with a clamping plate. With the setting of the wiring assembly, the staff passes the wires through the gap between the clamping plate and the adapter seat, and then according to the elastic force of the spring, the clamping plate can fix the wires to prevent the wires from being entangled with each other, which effectively improves the aesthetics of the wire arrangement and is convenient for the staff to use.

[0011] Further preferably, an adapter seat is fixedly connected to the bottom of the cable trough, and the adapter seat is adapted to the card plate. A dustproof component is provided on the front of the distribution cabinet body, and the dustproof component includes a cabinet door. The setting of the dustproof component allows the staff to directly observe the internal state of the distribution cabinet body through a transparent glass sheet during daily observation, thereby reducing the number of times the cabinet door is opened and closed, thereby reducing the chance of dust entering the interior of the distribution cabinet body, thereby effectively improving the dustproof effect, effectively improving the practicability, and facilitating the use of the staff.

[0012] Further preferably, the cabinet door is movably mounted on the front side of the power distribution cabinet body, the cabinet door is matched with the power distribution cabinet body, an observation groove is provided inside the cabinet door, and a transparent glass sheet is fixedly mounted inside the observation groove.

[0013] Further preferably, a handle is fixedly connected to the front side of the cabinet door at the right end of the observation slot, and a dust cap is fixedly installed on the top of the power distribution cabinet body.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, the noise reduction component is set, the distribution board will generate electric current sound and heat during long-term operation, and then the silent motor will drive the fan blades at its transmission end to rotate, thereby accelerating the air to flow into the interior of the ventilation hole, so that the air takes away most of the noise during the rapid circulation, and then the overall circulating air is divided by the dispersion plate, and the noise in the air when it reaches the bottom will be absorbed by the sound-absorbing column, which can not only effectively cool the distribution board, but also reduce the noise generated by the distribution board, improve the working environment of the staff, and improve the personal safety of the staff.

[0016] In the utility model, the ventilation component is set up, and the silent motor drives the fan blades to rotate to accelerate the air circulation to the outside. At the same time, the external air will enter the interior of the distribution cabinet body through the ventilation slot, thereby achieving air circulation. At the same time, the baffle plate 2 can isolate the noise emitted by the distribution board and prevent the noise from escaping to the outside through the ventilation slot, which effectively improves the practicality and safety and facilitates the use of the staff.

[0017] In the present invention, with the arrangement of the wiring assembly, the staff passes the wires through the gap between the clamping plate and the adapter seat, and then according to the elastic force of the spring, the clamping plate can fix the wires to prevent the wires from being entangled with each other, effectively improving the aesthetics of the wire arrangement and facilitating the use of the staff. With the arrangement of the dustproof assembly, the staff can directly observe the internal state of the distribution cabinet body through the transparent glass sheet during daily observation, reducing the number of times the cabinet door is opened and closed, thereby reducing the chance of dust entering the interior of the distribution cabinet body, thereby effectively improving the dustproof effect, effectively improving the practicability, and facilitating the use of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the details at point a;

[0021] Figure 4 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0023] Figure 6 It is a schematic diagram of the local planar structure of the utility model.

[0024] In the figure: 1. distribution cabinet body; 2. placement table; 3. distribution board; 4. noise reduction component; 5. ventilation component; 6. wire entry hole; 7. wiring assembly; 8. dustproof component; 9. dust cap; 401. ventilation hole; 402. silent motor; 403. fan blade; 404. dispersion plate; 405. bar grille; 406. sound-absorbing column; 407. support seat; 408. air outlet; 501. ventilation slot; 502. baffle 1; 503. baffle 2; 504. air inlet; 701. wiring slot; 702. spring; 703. card plate; 704. adapter seat; 801. cabinet door; 802. observation slot; 803. transparent glass sheet; 804. handle. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1 - Figure 6 The utility model provides a technical solution: a noise reduction structure of a power distribution cabinet, comprising a power distribution cabinet body 1, a placement table 2 is fixedly installed inside the power distribution cabinet body 1, a distribution board 3 is fixedly connected to the top of the placement table 2, and a noise reduction component 4 is arranged at the bottom of the power distribution cabinet body 1;

[0027] The noise reduction component 4 includes a ventilation hole 401, which is opened at the bottom of the power distribution cabinet body 1, and a silent motor 402 is fixedly installed inside the ventilation hole 401, and a fan blade 403 is fixedly connected to the transmission end of the silent motor 402. A dispersion plate 404 is fixedly connected to the inside of the ventilation hole 401 below the silent motor 402, and a bar grid 405 is fixedly connected to the inside of the ventilation hole 401 below the dispersion plate 404, and a sound-absorbing column 406 is fixedly connected to the bottom of the power distribution cabinet body 1. The outer end of the sound-absorbing column 406 is located at the bottom of the power distribution cabinet body 1 and fixedly installed with a support seat 407, and an air outlet 408 is opened on the front of the support seat 407;

[0028] The dispersion plate 404 is vertically and parallelly distributed inside the ventilation hole 401 , the sound absorbing column 406 is symmetrically distributed to the bottom of the power distribution cabinet body 1 , and the air outlet 408 is front-to-back parallelly distributed to the back of the support base 407 .

[0029] In this embodiment, Figure 1 and Figure 6 As shown, a ventilation component 5 is provided inside the power distribution cabinet body 1, and the ventilation component 5 includes a ventilation slot 501, which is opened on the inner wall of the power distribution cabinet body 1, and the ventilation slots 501 are symmetrically distributed on the left and right. A baffle 1 502 is fixedly connected to the inside of the ventilation slot 501, and the baffle 1 502 is distributed vertically and parallelly to the inside of the ventilation slot 501, and a baffle 2 503 is fixedly connected to the opposite side of the ventilation slot 501, and an air inlet hole 504 is opened inside the baffle 2 503, and the air inlet hole 504 is distributed vertically and parallelly to the inside of the baffle 2 503. A wire entry hole 6 is opened on the top of the power distribution cabinet body 1, and the wire entry hole 6 is symmetrically distributed to the top of the power distribution cabinet body 1.

[0030] In this embodiment, Figure 1 , Figure 2 and Figure 3As shown, a cable assembly 7 is provided on the back of the distribution cabinet body 1, and the cable assembly 7 includes a cable trough 701. The cable trough 701 is opened on the back of the distribution cabinet body 1, and the cable trough 701 is symmetrically distributed on the left and right. The inner wall of the cable trough 701 is fixedly connected with a spring 702, and the spring 702 is symmetrically distributed to the inner wall of the cable trough 701. The top of the spring 702 is fixedly connected with a clamping plate 703, and the bottom of the cable trough 701 is fixedly connected with an adapter seat 704, and the adapter seat 704 is adapted to the clamping plate 703. A dustproof assembly 8 is provided on the front of the distribution cabinet body 1, and the dustproof assembly 8 includes a cabinet door 801.

[0031] In this embodiment, Figure 1 As shown, the cabinet door 801 is movably installed on the front side of the power distribution cabinet body 1, the cabinet door 801 is adapted to the power distribution cabinet body 1, an observation slot 802 is opened inside the cabinet door 801, a transparent glass sheet 803 is fixedly installed inside the observation slot 802, a handle 804 is fixedly connected to the front side of the cabinet door 801 at the right end of the observation slot 802, and a dust cap 9 is fixedly installed on the top of the power distribution cabinet body 1.

[0032] The use method and advantages of the utility model: When the noise reduction structure of the power distribution cabinet is used, the working process is as follows:

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, during use, first pass the wire through the gap between the card plate 703 and the adapter seat 704, and then according to the elastic force of the spring 702, the card plate 703 can fix the wire to prevent the wires from being entangled with each other, and then pass another section of the wire through the wire entry hole 6 to connect with the distribution board 3. After that, the distribution board 3 will generate current sound and heat during long-term operation, and then the silent motor 402 will drive the fan blade 403 at its transmission end to rotate, thereby accelerating the air to flow into the interior of the ventilation hole 401, so that the air takes away most of the noise during the rapid circulation process, and then the overall circulating air is divided by the dispersion plate 404, and the noise in the air when it reaches the bottom will be absorbed by the sound-absorbing column 406. When the silent motor 402 drives the fan blade 403 to rotate and accelerate the air to circulate outward, the external air will enter the interior of the distribution cabinet body 1 through the ventilation slot 501 at the same time, thereby achieving air circulation, and at the same time, the baffle 2 503 can isolate the noise emitted by the distribution board 3 to prevent the noise from being discharged to the outside through the ventilation slot 501.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A noise reduction structure for a power distribution cabinet, comprising a power distribution cabinet body (1), characterized in that: A placement table (2) is fixedly installed inside the power distribution cabinet body (1), a distribution board (3) is fixedly connected to the top of the placement table (2), and a noise reduction component (4) is arranged at the bottom of the power distribution cabinet body (1); The noise reduction component (4) comprises a ventilation hole (401), the ventilation hole (401) is provided at the bottom of the power distribution cabinet body (1), a silent motor (402) is fixedly installed inside the ventilation hole (401), a driving end of the silent motor (402) is fixedly connected to a fan blade (403), a dispersion plate (404) is fixedly connected inside the ventilation hole (401) and located below the silent motor (402), a bar grille (405) is fixedly connected inside the ventilation hole (401) and located below the dispersion plate (404), a sound-absorbing column (406) is fixedly connected to the bottom of the power distribution cabinet body (1), a support seat (407) is fixedly installed at the outer end of the sound-absorbing column (406) at the bottom of the power distribution cabinet body (1), and an air outlet hole (408) is provided on the front of the support seat (407); The dispersion plate (404) is distributed vertically and parallelly to the inside of the ventilation hole (401), the sound absorbing column (406) is distributed symmetrically to the bottom of the power distribution cabinet body (1), and the air outlet hole (408) is distributed frontward and rearward in parallel to the back of the support base (407).

2. The noise reduction structure of the power distribution cabinet according to claim 1 is characterized in that: A ventilation assembly (5) is arranged inside the power distribution cabinet body (1), and the ventilation assembly (5) comprises ventilation slots (501). The ventilation slots (501) are provided on the inner wall of the power distribution cabinet body (1), and the ventilation slots (501) are symmetrically distributed on the left and right sides. A baffle plate 1 (502) is fixedly connected to the inside of the ventilation slot (501), and the baffle plate 1 (502) is distributed vertically and parallelly to the inside of the ventilation slot (501).

3. The noise reduction structure of the power distribution cabinet according to claim 2 is characterized in that: A baffle plate 2 (503) is fixedly connected to the side opposite to the ventilation slot (501), and an air inlet hole (504) is provided inside the baffle plate 2 (503). The air inlet hole (504) is vertically and parallelly distributed inside the baffle plate 2 (503). A wire entry hole (6) is provided on the top of the power distribution cabinet body (1), and the wire entry holes (6) are symmetrically distributed on the top of the power distribution cabinet body (1).

4. The noise reduction structure of the power distribution cabinet according to claim 3 is characterized in that: A cable assembly (7) is arranged on the back of the power distribution cabinet body (1), the cable assembly (7) comprising a cable trough (701), the cable trough (701) being arranged on the back of the power distribution cabinet body (1), the cable trough (701) being symmetrically distributed on the left and right, the inner wall of the cable trough (701) being fixedly connected to a spring (702), the spring (702) being symmetrically distributed on the inner wall of the cable trough (701), and the top of the spring (702) being fixedly connected to a clamping plate (703).

5. The noise reduction structure of the power distribution cabinet according to claim 4 is characterized in that: The bottom of the cable tray (701) is fixedly connected to an adapter seat (704), the adapter seat (704) being compatible with the card plate (703), and the front of the power distribution cabinet body (1) is provided with a dustproof component (8), the dustproof component (8) comprising a cabinet door (801).

6. The noise reduction structure of the power distribution cabinet according to claim 5, characterized in that: The cabinet door (801) is movably mounted on the front of the power distribution cabinet body (1); the cabinet door (801) is adapted to the power distribution cabinet body (1); an observation slot (802) is provided inside the cabinet door (801); and a transparent glass sheet (803) is fixedly mounted inside the observation slot (802).

7. The noise reduction structure of the power distribution cabinet according to claim 6, characterized in that: A handle (804) is fixedly connected to the front of the cabinet door (801) at the right end of the observation slot (802), and a dust cap (9) is fixedly installed on the top of the power distribution cabinet body (1).

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