A power distribution cabinet heat dissipation structure

Abstract

The utility model relates to a power distribution cabinet technical field discloses a power distribution cabinet heat dissipation structure, including distribution box main part, the inside of distribution box main part is provided with a plurality of baffle and carries out the layering, and the both sides of distribution box main part inner wall are fixedly connected with the exhaust bin subassembly, and the top of distribution box main part inner wall is fixedly installed with the ash removal cooling mechanism, and the ash removal cooling mechanism is connected with the inside of distribution box main part, and the top of distribution box main part is fixedly installed with the fan, and the fan air outlet end is communicated with the inside of ash removal cooling mechanism, the utility model discloses a distribution box main part inside forced input airflow, the airflow that enters the ash removal cooling mechanism inside passes through airflow guide mechanism, can change airflow flow, makes through the airflow present the situation of the inside of exhaust bin subassembly and flows through, through the setting because airflow presents the situation of the inside of exhaust bin subassembly and flows through, when airflow passes through the corner, will constantly collide with airflow guide mechanism inner wall, and dust particle because of the impact wall surface, loses kinetic energy and deposits or is intercepted, thereby separates from airflow.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet technology, and more specifically to a heat dissipation structure for power distribution cabinets. Background Technology

[0002] A distribution cabinet is an electrical device in a power system used to receive, distribute, and control electrical energy. Through protective devices such as circuit breakers and fuses, along with components like busbars and conductors, it rationally distributes electrical energy to various power branches. Simultaneously, it monitors electrical parameters such as voltage and current in real time, automatically cutting off power in case of overload, short circuit, or other faults to ensure electrical safety. In today's power systems, the distribution cabinet is a key device responsible for receiving, distributing, and controlling electrical energy. Especially with the continuous increase in power load and the increasing integration of internal components, the heat generated during operation has significantly increased. Effective heat dissipation plays a decisive role in the stable operation of the distribution cabinet.

[0003] Existing heat dissipation methods for distribution cabinets mainly include natural convection and forced ventilation. Natural convection relies on the temperature difference between the inside and outside of the cabinet to promote natural airflow and achieve heat exchange. However, this method is relatively inefficient and cannot meet the heat dissipation requirements of modern high-power-density distribution cabinets. Forced ventilation, on the other hand, uses fans and other equipment to force airflow, which improves heat dissipation efficiency to some extent, but it can lead to the introduction of more dust into the distribution cabinet, affecting the electrical components inside. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a heat dissipation structure for a power distribution cabinet, so as to solve the problems of low efficiency and easy introduction of dust into the cabinet during the heat dissipation process in the traditional power distribution cabinet heat dissipation method mentioned in the background art.

[0005] This utility model provides the following technical solution: a heat dissipation structure for a power distribution cabinet, including a power distribution box body. The power distribution box body has several partitions arranged inside for layering. Exhaust chamber assemblies are fixedly connected to both sides of the inner wall of the power distribution box body. A dust removal and cooling mechanism is fixedly installed on the top of the inner wall of the power distribution box body, and the dust removal and cooling mechanism is connected to the interior of the power distribution box body. A fan is fixedly installed on the top of the power distribution box body, and the fan's outlet end is connected to the interior of the dust removal and cooling mechanism. The dust removal and cooling mechanism includes a U-shaped plate. Two inclined plates are fixedly connected to the inner wall of the U-shaped plate. Vertical plates are fixedly connected to the inner ends of the two inclined plates. The bottoms of the two vertical plates are fixedly connected to the inner wall of the U-shaped plate. An airflow guiding mechanism is fixedly connected to the interior of the U-shaped plate outside the two inclined plates. The airflow guiding mechanism is composed of several angled plates. Several slots are opened on the side walls of the vertical plates, and the slots are respectively aligned with the gaps of the angled plates.

[0006] Furthermore, the angle plate has an internal interlayer space, and several of the internal interlayer spaces of the angle plate are connected by a connecting pipe. The two airflow guiding mechanisms are connected by a connecting pipe, and both ends of the connecting pipe are connected to the interlayer spaces of the angle plate of the two airflow guiding mechanisms. The two airflow guiding mechanisms are respectively connected to the inlet pipe and the outlet pipe, and the inlet pipe and the outlet pipe are respectively connected to the interlayer spaces of the angle plate of the two airflow guiding mechanisms.

[0007] Furthermore, an adhesive patch is provided at the bottom of the inner wall of the U-shaped plate, and the adhesive patch is located between the two upright plates.

[0008] Furthermore, the exhaust chamber assembly includes a chamber shell and a toggle mechanism. A number of switchable exhaust windows are provided on one side of the chamber shell. The switchable exhaust windows are used to exhaust airflow inside the chamber shell. The number of switchable exhaust windows is the same as the number of internal layers of the distribution box. The toggle mechanism is used to control the opening and closing of the switchable exhaust windows.

[0009] Furthermore, the switchable exhaust window includes a fixed frame, with several fixed plates fixedly connected to the inner wall of the fixed frame. Track grooves are provided on both sides of the inner wall of the fixed frame, and slide bars are slidably fitted into each of the two track grooves. Several baffles are fixedly connected to the inner walls of the two slide bars, and a connecting post is fixedly connected to one side of each baffle. A slot box is fixedly connected to the bottom of the connecting post, and a flipping claw is rotatably fitted into the inner wall of the slot box. The top of the slide bar is connected to the top of the track groove via a tension spring.

[0010] Furthermore, the actuating mechanism includes a rail box, in which a threaded rod is rotatably sleeved. The rail box is fixedly installed on the outer wall of the main body of the distribution box and penetrates into the interior of the housing. A slider is slidably sleeved inside the rail box. The slider is threaded onto the side wall of the threaded rod. A concave groove is provided on one side of the slider, in which a rotating cylinder is rotatably sleeved. A protrusion is provided on the side wall of the rotating cylinder. The rotating cylinder is connected to the inner wall of the concave groove of the slider through a torsion spring. A motor is fixedly installed on the outer wall of the rail box, and the output end of the motor is connected to the threaded rod through a bevel gear meshing group.

[0011] Furthermore, the flipping claw is connected to the inner wall of the slot box via a torsion spring.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] This invention features a forced airflow system inside the main body of the distribution box. The airflow entering the dust removal and cooling mechanism passes through an airflow guide mechanism, altering its flow path and causing it to zigzag as it flows into the exhaust chamber assembly. Because the airflow travels in a zigzag pattern, it continuously collides with the inner wall of the airflow guide mechanism as it passes through the bends. Dust particles, upon impacting the wall, lose kinetic energy and settle or are trapped, thus separating from the airflow. The airflow then enters the main body of the distribution box through the exhaust chamber assembly for heat dissipation. This design increases the heat dissipation efficiency of the distribution cabinet while preventing dust from entering. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This utility model Figure 1 A schematic diagram of the ash removal and cooling mechanism in the middle;

[0016] Figure 3 This utility model Figure 2 Top view of the airflow guiding mechanism in the diagram;

[0017] Figure 4 This utility model Figure 1 A schematic diagram of the exhaust chamber component structure;

[0018] Figure 5 This utility model Figure 4 A schematic diagram of the switchable exhaust window structure in the image;

[0019] Figure 6 This utility model Figure 4 A schematic diagram of the toggle mechanism.

[0020] The attached diagram is labeled as follows: 1. Main body of the distribution box; 2. Ash removal and cooling mechanism; 3. Fan; 4. Exhaust chamber assembly; 21. U-shaped plate; 22. Inclined plate; 23. Vertical plate; 24. Airflow guiding mechanism; 25. Connecting pipe II; 26. Liquid inlet pipe; 27. Liquid outlet pipe; 241. Angle plate; 242. Connecting pipe I; 41. Chamber shell; 42. Switchable exhaust window; 43. Actuating mechanism; 421. Fixed frame; 422. Fixed plate; 423. Sliding bar; 424. Baffle; 425. Tension spring; 426. Slot box; 427. Flipping claw; 428. Connecting column; 431. Rail box; 432. Threaded rod; 433. Slider; 434. Rotating cylinder; 435. Protrusion; 436. Torsion spring I; 437. Bevel gear meshing assembly; 438. Motor. Detailed Implementation

[0021] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] Reference Figure 1 and Figure 2 This utility model provides a heat dissipation structure for a power distribution cabinet, including a power distribution box body 1. The power distribution box body 1 is internally equipped with several partitions for layering. Both sides of the inner wall of the power distribution box body 1 are fixedly connected to exhaust chamber assemblies 4. A dust removal and cooling mechanism 2 is fixedly installed on the top of the inner wall of the power distribution box body 1. The dust removal and cooling mechanism 2 is connected to the interior of the power distribution box body 1. A fan 3 is fixedly installed on the top of the power distribution box body 1. The air outlet of the fan 3 is connected to the interior of the dust removal and cooling mechanism 2. The dust removal and cooling mechanism 2 includes a U-shaped plate 21. Two inclined plates 22 are fixedly connected to the inner wall of the U-shaped plate 21. Vertical plates 23 are fixedly connected to the inner ends of the two inclined plates 22. The bottoms of the two vertical plates 23 are fixedly connected to the inner wall of the U-shaped plate 21. An airflow guiding mechanism 24 is fixedly connected to the inside of the U-shaped plate 21 on the outside of the two inclined plates 22. The airflow guiding mechanism 24 is composed of several angle plates 241. Several slots are opened on the side wall of the vertical plates 23, and the slots are respectively aligned with the gaps of the angle plates 241.

[0023] During use, the fan 3 outputs airflow, which enters the dust removal and cooling mechanism 2 and first contacts the two inclined plates 22. The inclined plates 22 guide the airflow, causing it to converge towards the inside of the two vertical plates 23. Then, the airflow passes through several slots in the two vertical plates 23 and flows towards the two airflow guiding mechanisms 24. When the airflow passes through the airflow guiding mechanism 24, it flows through the gaps between several angle plates 241. Due to the shape characteristics of the angle plates 241, the airflow can flow in a zigzag shape. At this time, the airflow will collide with the wall of the angle plates 241, and the dust particles mixed in the airflow will be intercepted and settled under the impact effect, thereby achieving the effect of separating dust from the airflow.

[0024] Reference Figure 3 The angle plate 241 has an internal interlayer space. Several internal interlayer spaces of the angle plate 241 are connected by a connecting pipe 1 242. Two airflow guiding mechanisms 24 are connected by a connecting pipe 25. Both ends of the connecting pipe 25 are connected to the interlayer space of the angle plate 241 of the two airflow guiding mechanisms 24. The two airflow guiding mechanisms 24 are respectively connected to the liquid inlet pipe 26 and the liquid outlet pipe 27. The liquid inlet pipe 26 and the liquid outlet pipe 27 are respectively connected to the interlayer space of the angle plate 241 of the two airflow guiding mechanisms 24.

[0025] With this structure, coolant is introduced through the inlet pipe 26. Under the action of connecting pipe 1 242 and connecting pipe 25, the space between several angle plates 241 can be filled with coolant, thereby cooling the angle plates 241. When the airflow and the angle plates 241 avoid repeated collisions and contact, heat exchange effect is achieved. This cools the airflow and improves the heat dissipation effect on the internal space of the distribution box body 1. The coolant inside the angle plates 241 can be discharged through the drain pipe 27. The discharged coolant can be connected to the heat exchange fins for cooling, which is convenient for recycling.

[0026] Reference Figure 2 An adhesive patch is provided at the bottom of the inner wall of the U-shaped plate 21, and the adhesive patch is located between the two vertical plates 23.

[0027] As the airflow entering the dust removal and cooling mechanism 2 is guided by the two inclined plates 22, it can converge and sink towards the center. Therefore, the airflow will collide with the bottom of the inner wall of the U-shaped plate 21. By setting adhesive strips to contact the airflow, the dust in the airflow will adhere through the adhesive force of the adhesive strips, thereby achieving a preliminary dust separation effect.

[0028] Reference Figure 4 The exhaust chamber assembly 4 includes a chamber shell 41 and a toggle mechanism 43. Several switchable exhaust windows 42 are provided on one side of the chamber shell 41. The switchable exhaust windows 42 are used to exhaust the airflow inside the chamber shell 41. The number of switchable exhaust windows 42 is the same as the number of layers inside the main body of the distribution box 1. The toggle mechanism 43 is used to control the opening and closing of the switchable exhaust windows 42.

[0029] During use, the airflow entering the exhaust chamber assembly 4 flows downward inside the chamber shell 41. The airflow inside the chamber shell 41 is discharged into the main body of the distribution box 1 through the switchable exhaust window 42 for heat dissipation. By controlling the opening and closing of the switchable exhaust window 42 through the toggle mechanism 43, the exhaust chamber assembly 4 can achieve the effect of heat dissipation for each partition inside the main body of the distribution box 1. Since the airflow entering the chamber shell 41 flows vertically downward, it can further achieve the effect of dust separation. In addition, this setting can also prevent moisture from entering the main body of the distribution box 1 through the exhaust chamber assembly 4.

[0030] Reference Figure 5 The switchable exhaust window 42 includes a fixed frame 421. Several fixed plates 422 are fixedly connected to the inner wall of the fixed frame 421. Track grooves are opened on both sides of the inner wall of the fixed frame 421. Sliding strips 423 are slidably sleeved in the two track grooves. Several baffles 424 are fixedly connected to the inner wall of the two sliding strips 423. A connecting post 428 is fixedly connected to one side of the several baffles 424. A slot box 426 is fixedly connected to the bottom of the connecting post 428. A flipping claw 427 is rotatably sleeved on the inner wall of the slot box 426. The top of the sliding strip 423 is connected to the top of the track groove through a tension spring 425.

[0031] In use, the flipping claw 427 can be flipped downward by operating the toggle mechanism 43. The bottom of the flipping claw 427 contacts the bottom of the inner wall of the slot box 426, preventing the flipping claw 427 from flipping. At this time, under the toggle effect of the toggle mechanism 43, the flipping claw 427 and the slot box 426 can form a downward pulling force on the connecting column 428, thereby causing several baffles 424 to move downward. When several baffles 424 overlap with several fixed plates 422, the airflow can pass through the gap between several baffles 424 and several fixed plates 422 and be discharged. When the toggle mechanism 43 does not toggle the flipping claw 427, under the pulling effect of the tension spring 425, several baffles 424 automatically reset, thereby blocking the gap between several fixed plates 422, so that the switchable exhaust window 42 can be closed and unable to discharge airflow.

[0032] Reference Figure 6 The actuating mechanism 43 includes a track box 431, in which a threaded rod 432 is rotatably sleeved. The track box 431 is fixedly installed on the outer wall of the main body 1 of the distribution box and penetrates into the interior of the housing 41. A slider 433 is slidably sleeved inside the track box 431. The slider 433 is threadedly sleeved on the side wall of the threaded rod 432. A concave groove is opened on one side of the slider 433, in which a rotating cylinder 434 is rotatably sleeved. A protrusion 435 is provided on the side wall of the rotating cylinder 434. The rotating cylinder 434 is connected to the inner wall of the concave groove of the slider 433 through a torsion spring 436. A motor 438 is fixedly installed on the outer wall of the track box 431. The output end of the motor 438 is connected to the threaded rod 432 through a bevel gear meshing group 437.

[0033] When the output of motor 438 is driven by bevel gear meshing group 437, the threaded rod 432 rotates. Under the action of the threaded structure, the slider 433 can move up and down. Through the contact of the protrusion 435 with the flipping claw 427, the actuation effect can be achieved. When the slider 433 continues to move down, the protrusion 435 is subjected to a large reverse force, which makes the rotating cylinder 434 rotate to achieve the flipping effect. This allows the protrusion 435 to separate from the flipping claw 427 and reach the bottom of the flipping claw 427, so that the protrusion 435 can connect with another switch-type exhaust window 42 and control the opening and closing of the other switch-type exhaust window 42. When the slider 433 moves up and connects with the switch-type exhaust window 42 at the top of the displacement, the protrusion 435 can contact the bottom of the flipping claw 427. By flipping the flipping claw 427 upward, the flipping claw 427 can avoid blocking the upward movement of the protrusion 435. When the protrusion 435 reaches the top of the flipping claw 427, the flipping claw 427 flips and resets under the influence of gravity.

[0034] Reference Figure 5 The flipping claw 427 is connected to the inner wall of the slot box 426 via a torsion spring 2.

[0035] After the flipping claw 427 flips upward, the flipping claw 427 can be reset by setting a torsion spring 2.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. This utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation structure for a power distribution cabinet, comprising a power distribution box body (1), wherein the power distribution box body (1) is provided with a plurality of partitions for layering, characterized in that: Both sides of the inner wall of the main body (1) of the distribution box are fixedly connected to exhaust chamber components (4). A dust removal and cooling mechanism (2) is fixedly installed on the top of the inner wall of the main body (1). The dust removal and cooling mechanism (2) is connected to the inside of the main body (1). A fan (3) is fixedly installed on the top of the main body (1). The air outlet of the fan (3) is connected to the inside of the dust removal and cooling mechanism (2). The dust removal and cooling mechanism (2) includes a U-shaped plate (21). Two U-shaped plates (21) are fixedly connected to the inner wall of the inner wall of the U-shaped plate (21). Inclined plate (22), with vertical plate (23) fixedly connected to the inner end of each of the two inclined plates (22). The bottom of each of the two vertical plates (23) is fixedly connected to the inner wall of the U-shaped plate (21). An airflow guiding mechanism (24) is fixedly connected to the inside of the U-shaped plate (21) on the outside of the two inclined plates (22). The airflow guiding mechanism (24) is composed of several angle plates (241). Several slots are opened on the side wall of the vertical plate (23), and the slots are respectively aligned with the gaps of the angle plates (241).

2. The heat dissipation structure of a power distribution cabinet according to claim 1, characterized in that: The angle plate (241) has an internal interlayer space. The interlayer spaces inside the angle plates (241) are connected by a connecting pipe (242). The two airflow guiding mechanisms (24) are connected by a connecting pipe (25). The two ends of the connecting pipe (25) are connected to the interlayer spaces of the angle plates (241) of the two airflow guiding mechanisms (24). The two airflow guiding mechanisms (24) are respectively connected to the inlet pipe (26) and the outlet pipe (27). The inlet pipe (26) and the outlet pipe (27) are respectively connected to the interlayer spaces of the angle plates (241) of the two airflow guiding mechanisms (24).

3. The heat dissipation structure of a power distribution cabinet according to claim 1, characterized in that: The bottom of the inner wall of the U-shaped plate (21) is provided with an adhesive patch, and the adhesive patch is located between the two upright plates (23).

4. The heat dissipation structure of a power distribution cabinet according to claim 1, characterized in that: The exhaust chamber assembly (4) includes a chamber shell (41) and a toggle mechanism (43). A number of switchable exhaust windows (42) are provided on one side of the chamber shell (41). The switchable exhaust windows (42) are used to exhaust the airflow inside the chamber shell (41). The number of switchable exhaust windows (42) is the same as the number of layers inside the main body of the distribution box (1). The toggle mechanism (43) is used to control the opening and closing of the switchable exhaust windows (42).

5. The heat dissipation structure of a power distribution cabinet according to claim 4, characterized in that: The switchable exhaust window (42) includes a fixed frame (421), and a number of fixed plates (422) are fixedly connected to the inner wall of the fixed frame (421). Track grooves are provided on both sides of the inner wall of the fixed frame (421), and slide bars (423) are slidably sleeved in the two track grooves. A number of baffles (424) are fixedly connected to the inner wall of the two slide bars (423). A connecting column (428) is fixedly connected to one side of the baffles (424). A slot box (426) is fixedly connected to the bottom of the connecting column (428). A flipping claw (427) is rotatably sleeved on the inner wall of the slot box (426). The top of the slide bar (423) is connected to the top of the track groove through a tension spring (425).

6. The heat dissipation structure of a power distribution cabinet according to claim 4, characterized in that: The actuating mechanism (43) includes a rail box (431), in which a threaded rod (432) is rotatably sleeved. The rail box (431) is fixedly installed on the outer wall of the main body (1) of the distribution box and penetrates into the interior of the housing (41). A slider (433) is slidably sleeved in the rail box (431). The slider (433) is threadedly sleeved on the side wall of the threaded rod (432). A concave groove is provided on one side of the slider (433), in which a rotating cylinder (434) is rotatably sleeved. A protrusion (435) is provided on the side wall of the rotating cylinder (434). The rotating cylinder (434) is connected to the inner wall of the concave groove of the slider (433) through a torsion spring (436). A motor (438) is fixedly installed on the outer wall of the rail box (431). The output end of the motor (438) is connected to the threaded rod (432) through a bevel gear meshing group (437).

7. The heat dissipation structure of a power distribution cabinet according to claim 5, characterized in that: The flipping claw (427) is connected to the inner wall of the slot box (426) via a torsion spring.

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