Power distribution cabinet convenient for heat dissipation

Abstract

The invention belongs to the technical field of electrical cabinets, particularly relates to a power distribution cabinet convenient for heat dissipation, and provides the following scheme: the power distribution cabinet comprises a cabinet body and two frames; the frame is fixed on two sides of the top of the cabinet body, a heat dissipation cavity is formed between the frame and the cabinet body, cabinet door plates are detachably connected to two ends of the cabinet body, and screen plates are arranged on the cabinet door plates at positions corresponding to the heat dissipation cavity; sliding grooves are formed in the side walls and the bottoms of the frames, a plurality of air holes are formed in the side walls, facing the cabinet body, of the frames, the air holes in the sliding grooves are distributed in the positions of one ends of the frames, the air holes in the two frames are distributed in the symmetrical positions of the two ends, and movable baffles are arranged on the sliding grooves in a sliding mode. According to the invention, the air hole coverage area is changed in a reciprocating manner through the movable baffle plate, so that the range of the led-out airflow is continuously changed, the hot airflow is prevented from flowing towards a single direction all the time to be gathered, and the heat dissipation effect and cooling efficiency in the cabinet body in a normal state are improved.

Description

Technical Field

[0001] The invention relates to the technical field of electrical cabinets, and in particular to a power distribution cabinet that is convenient for heat dissipation. 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 power distribution system. The heat generated by the integrated electronic equipment in the distribution cabinet during long-term operation can easily cause the temperature inside the distribution cabinet to be too high.

[0003] Referring to a Chinese patent with patent announcement number CN212164075U, a heat dissipation device for an electrical automation control box is disclosed, including a control box body, a water tank is provided inside the control box body, a temperature measuring device is installed at one end of the control box body, a drain pipe is installed below the temperature measuring device at one end of the control box body, a base is provided at the lower end of the control box body, a cooling fan is installed inside the base, a movable door is connected to the front end of the control box body, an observation window is installed inside the movable door, a water tank is provided at the other end of the control box body, a water inlet pipe is provided at one end of the water tank, and a movable plate is connected to the upper end of the control box body.

[0004] The above patent is the same as the ventilation means commonly used in electrical cabinets in the prior art, both of which use a fan or air outlet at a single position to dissipate heat in the electrical cabinet. However, long-term single-directional air outlet can easily cause hot air to accumulate at the air outlet or around electronic equipment, affecting the heat dissipation effect and the working effect of the distribution cabinet. Summary of the invention

[0005] Based on the technical problems of the background technology, the present invention proposes a power distribution cabinet that is easy to dissipate heat.

[0006] The present invention proposes a power distribution cabinet that is easy to dissipate heat, including a cabinet body and two frames; the frames are fixed at two side positions of the top of the cabinet body, a heat dissipation cavity is formed between the frames and the cabinet body, both ends of the cabinet body are detachably connected with cabinet door panels, and a mesh plate is arranged on the cabinet door panels at a position corresponding to the heat dissipation cavity; the side walls and bottom of the frame are provided with sliding grooves, and the frame is provided with a plurality of air holes toward the side walls of the cabinet body, the air holes on the sliding grooves are distributed at one end of the frame, and the air holes on the two frames are distributed at symmetrical positions at both ends, and a movable baffle is slidably arranged on the sliding grooves.

[0007] Preferably, the movable baffle is provided with a vertical portion and a horizontal portion, a through groove 1 is opened on both sides of the top of the cabinet body, and the vertical portion is in sliding contact with the through groove 1, an installation box is fixed on the top of the cabinet body, and limiting blocks are fixed on both sides of the installation box, and a horizontally extending through groove 2 is opened on the top of one side of the vertical portion, and the outer wall of the limiting block is in sliding contact with the inner wall of the through groove 2.

[0008] Preferably, mounting holes are provided on both sides of the top of the mounting box, the inner wall of the mounting hole is rotatably connected to a shaft rod 1, a gear is fixed to the outer wall of the shaft rod 1, horizontally distributed gear blocks are fixed at the position of the side wall of the movable baffle corresponding to the gear, and the shaft rod 1 is transmission-connected to a drive motor.

[0009] Preferably, a connecting port is opened in the middle position of the top of the installation box, a connecting box with top and bottom openings is fixed in the connecting port, a fixing frame is installed on the inner wall of the connecting box, a vertically extending shaft rod two is rotatably connected to the fixing frame, and a fan blade is fixed to the outer wall of the shaft rod two below the fixing frame.

[0010] Preferably, the shaft rod 2 and the two shaft rods 1 are all connected to each other via a synchronous belt, and the drive motor is provided with one, and the output shaft of the drive motor is fixed to the top end of one of the shaft rods 1.

[0011] Preferably, a box cover is fixed to the top of the connection box, air ports are provided at the top positions around the connection box, a gap is left between the bottom of the connection box and the top of the cabinet, a plurality of through holes are provided on the top of the cabinet, and both ends of the installation box are detachably connected to box door panels, which are provided with mesh holes.

[0012] Preferably, the second shaft rod is located above the fixing frame and is configured as a threaded rod, the outer wall of the threaded rod is threadedly connected to a piston plate, and the outer wall of the piston plate is in sliding contact with the inner wall of the connection box.

[0013] Preferably, when the movable baffle moves toward the direction close to the air hole as the gear rotates, the fan blades guide the air upward and the piston plate moves upward along the threaded rod.

[0014] Preferably, multiple mounting frames are fixed on both sides of the cabinet body, multiple through slots three are opened on both sides of the cabinet body, heat dissipation strips are fixed on the inner walls of the through slots three, the heat dissipation strips are vertically extended, and multiple elastic sheets are fixed on one end of the horizontal part of the movable baffle, and the elastic sheets extend toward the heat dissipation strips.

[0015] The beneficial effects of the present invention are: 1. In the present invention, the movable baffle can move back and forth horizontally along the slide groove, so that the air hole coverage area changes back and forth and the range of the drawn air flow changes continuously, thereby guiding the top air flow in the cabinet to flow in both ends to disperse the hot air flow on the top of the cabinet, and avoiding the hot air flow always flowing in a single direction and gathering, thereby improving the heat dissipation effect and cooling efficiency in the cabinet under normal conditions.

[0016] 2. In the present invention, the horizontal reciprocating motion of the movable baffle and the change of the coverage area of ​​the air holes, the reverse reciprocating motion of the fan blades to alternately change the direction of the air flow guidance, and the change of the position of the piston plate and the air port are used to effectively improve the air flow dispersion and discharge effect at various positions in the upper area of ​​the cabinet, and effectively avoid the accumulation of hot air that makes it difficult to dissipate, thereby improving the heat dissipation and cooling efficiency.

[0017] 3. In the present invention, during the horizontal reciprocating movement of the movable baffle in coordination with the movement of the airflow, the elastic sheet swings vertically to disperse the airflow at the bottom of the frame, and cooperates with the dispersed mounting frames and heat dissipation strips to enable the airflow on both sides of the cabinet to move vertically, thereby improving the overall airflow of the cabinet after vertical movement from both sides to disperse the heat dissipation effect between the two frames and the perforated positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a power distribution cabinet that is convenient for heat dissipation proposed by the present invention; Figure 2 A schematic diagram of the overall internal structure of a power distribution cabinet that is convenient for heat dissipation proposed by the present invention; Figure 3 A schematic diagram of the cabinet structure of a power distribution cabinet that is convenient for heat dissipation proposed by the present invention; Figure 4 A schematic diagram of the framework structure of a power distribution cabinet that is convenient for heat dissipation proposed by the present invention; Figure 5 A schematic diagram of the structure of an installation box of a power distribution cabinet that is convenient for heat dissipation proposed by the present invention; Figure 6 A schematic diagram of the gear position structure of a power distribution cabinet that is convenient for heat dissipation proposed by the present invention; Figure 7 A schematic diagram of the internal structure of a connection box of a power distribution cabinet that is convenient for heat dissipation proposed by the present invention; Figure 8 A schematic diagram of the distribution structure of heat dissipation strips and elastic sheets of a power distribution cabinet for facilitating heat dissipation proposed by the present invention.

[0019] In the figure: 1 cabinet, 101 slot 1, 102 perforation, 2 frame, 201 slide, 202 air hole, 3 heat dissipation cavity, 4 cabinet door panel, 5 mesh plate, 6 movable baffle, 601 slot 2, 7 installation box, 8 limit block, 9 shaft rod 1, 10 gear, 11 gear block, 12 drive motor, 13 connection box, 131 air port, 132 box cover, 14 fixing frame, 15 shaft rod 2, 16 fan blade, 17 synchronous belt, 18 piston plate, 19 cabinet door panel, 20 heat dissipation strip, 21 installation frame, 22 elastic sheet. DETAILED DESCRIPTION

[0020] Example 1: Reference Figure 1-Figure 5A power distribution cabinet for heat dissipation includes a cabinet body 1 and two frames 2; the frames 2 are fixed to the two sides of the top of the cabinet body 1, a heat dissipation cavity 3 with openings at both ends is formed between the frames 2 and the cabinet body 1, both ends of the cabinet body 1 are detachably connected with cabinet door panels 4, and a mesh plate 5 is arranged at a position corresponding to the heat dissipation cavity 3 on the cabinet door panels 4; a slide groove 201 is provided on the side wall and the bottom of the frame 2, and a plurality of air holes 202 are provided on the side wall of the frame 2 facing the cabinet body 1, the air holes 202 on the slide groove 201 are distributed at one end of the frame 2, and the air holes 202 on the two frames 2 are distributed at symmetrical positions at both ends, A movable baffle 6 is slidably arranged on the slide 201, and the distribution area of ​​the air holes 202 on the frame 2 is smaller than half of the area of ​​the slide 201, and the coverage range of the movable baffle 6 is larger than half of the area of ​​the slide 201, so that when the movable baffle 6 is at a position away from the air holes 202, the air holes 202 can be completely leaked, and after the movable baffle 6 is horizontally moved to the other end, the air holes 202 can be completely covered; the hot air in the top area of ​​the cabinet 1 can be directly connected to the heat dissipation cavity 3 from the air holes 202, and the positions at both ends of the heat dissipation cavity 3 corresponding to the mesh plate 5 can be directly connected to the external environment, so as to discharge heat; In addition, the air holes 202 on the position frame 2 on both sides of the cabinet 1 are distributed at both ends, so that the air flow in the cabinet 1 will be dispersed between the two ends. At the same time, when in use, the movable baffle 6 can move back and forth horizontally along the slide groove 201, so that the coverage area of ​​the air holes 202 changes back and forth, and the range of the air flow is constantly changing, thereby guiding the top air flow in the cabinet 1 to flow in the directions of both ends to disperse the hot air flow on the top of the cabinet 1, and avoid the hot air flow always flowing in a single direction and gathering, thereby improving the heat dissipation effect and cooling efficiency in the cabinet 1 under normal conditions.

[0021] In the present invention, reference is made to Figure 1-Figure 6 The movable baffle 6 is provided with a vertical portion and a horizontal portion, the vertical portion is in sliding contact with the side wall of the frame 2, the horizontal portion is in sliding contact with the bottom of the frame 2, a through groove 101 is provided on both sides of the top of the cabinet 1, the vertical portion is in sliding contact with the through groove 101, an installation box 7 is fixed on the top of the cabinet 1, and a limiting block 8 is fixed on both sides of the installation box 7, a horizontally extending through groove 2 601 is provided on the top of one side of the vertical portion, the outer wall of the limiting block 8 is in sliding contact with the inner wall of the through groove 2 601, and both sides of the top of the installation box 7 are provided There is a mounting hole, the inner wall of the mounting hole is rotatably connected to a shaft rod 9 extending vertically downward, a gear 10 is fixed to the outer wall of the shaft rod 9, and a horizontally distributed tooth block 11 is fixed to the position of the side wall of the movable baffle 6 corresponding to the gear 10, and the shaft rod 9 is transmission-connected to a driving motor 12, so that the shaft rod 9 is reciprocated and rotated by the driving motor 12, and the movable baffle 6 is horizontally reciprocated through the meshing between the gear 10 and the tooth block 11, so as to realize the movement effect of discharging hot air at the position of the air hole 202 on the frame 2.

[0022] In the present invention, reference is made to Figure 1-Figure 7A connecting port is provided in the middle of the top of the installation box 7, and a connecting box 13 with top and bottom openings is fixed in the connecting port. A fixing frame 14 is installed on the inner wall of the connecting box 13, and a vertically extending shaft rod 2 15 is rotatably connected to the fixing frame 14. The outer wall of the shaft rod 2 15 is located below the fixing frame 14 and a fan blade 16 is fixed thereon. A synchronous belt 17 is transmission-connected between the shaft rod 2 15 and the two shaft rods 1 9, and the synchronous belt 17 is arranged below the fan blade 16. The drive motor 12 is provided with one, and the output shaft of the drive motor 12 is connected to one of the shafts. The top of rod 1 9 is fixed. When in use, the driving motor 12 drives one of the shaft rods 1 9 to rotate, and utilizes the connection of two synchronous belts 17 to make the other shaft rod 1 9 and shaft rod 2 15 rotate in the same direction. On the one hand, the two gears 10 rotate in the same direction, and the movable baffle 6 meshing with the outer sides of the two gears 10 will move horizontally in the opposite direction to cover the air hole 202 reciprocatingly; on the other hand, during the process of the movable baffle 6 moving horizontally reciprocatingly, shaft rod 2 15 drives the fan blades 16 to reciprocate to disperse the airflow above the cabinet 1 to avoid heat accumulation on the top.

[0023] In the present invention, reference is made to Figure 1-Figure 7 A box cover 132 is fixed to the top of the connection box 13, and air ports 131 are provided at the top positions around the connection box 13. The air ports 131 are located above the outer wall of the top of the installation box 7. A gap is left between the bottom end of the connection box 13 and the top of the cabinet 1. A plurality of through holes 102 are provided at the top of the cabinet 1 corresponding to the connection box 13. Both ends of the installation box 7 are detachably connected with a box door plate 19, and a mesh is provided on the box door plate 19. The shaft rod 15 is located above the fixing frame 14 and is configured as a threaded rod. The outer wall of the threaded rod is threadedly connected with a piston plate 18. The outer wall of the piston plate 18 is in sliding contact with the inner wall of the connection box 13. The movable baffle 6 moves toward the adjacent wall as the gear 10 rotates. When moving in the direction close to the air hole 202, the fan blade 16 guides the air upward and the piston plate 18 moves upward along the threaded rod, and the piston plate 18 moves upward from the connection box 13 to the top of the air port 131. Similarly, when the movable baffle 6 moves in the direction away from the air hole 202 as the gear 10 rotates, the fan blade 16 guides the air downward and the piston plate 18 moves downward, and the piston plate 18 moves from the top of the air port 131 to the position below the air port 131; thus, when the drive motor 12 reciprocates one of the shafts 9, the two movable baffles 6 simultaneously cover the air hole 202 or open the air hole 202, the fan blade 16 alternately guides the air flow upward or downward, and the piston plate 18 reciprocates vertically; When in use, when the movable baffle 6 moves from the slide groove 201 toward the air hole 202, the air hole 202 has not been covered yet, and the piston plate 18 has not yet moved upward to the air port 131. At this time, the fan blade 16 guides the air flow upward to make the hot air flow in the cabinet 1 gather toward the bottom of the connection box 13. When the piston plate 18 moves upward to the air port 131, the movable baffle 6 covers part of the air hole 202 to reduce the air intake of the heat dissipation cavity 3 toward the cabinet 1 and avoid a large amount of backflow of the just-exhausted air flow. At the same time, due to the connection of the bottom of the air port 131, the air flow at the bottom of the connection box 13 quickly flows out from the air ports 131 around it, and cooperates with the upward air intake operation of the fan blade 16 to improve the upward exhaust and heat dissipation effect. When the movable baffle 6 completely covers the air hole 202 and turns to move horizontally, the air hole 202 is gradually opened. At this time, the fan blades 16 guide the airflow downward, and discharge the airflow in the cabinet 1 from the air holes 202 on both sides. As the opening range of the air holes 202 increases, the airflow guidance and dispersion effect is improved, and the piston plate 18 is moved vertically at the air port 131 to block the top of the connecting box 13, so as to disperse the air flow movement in the top area of ​​the cabinet 1, and further improve the dispersion effect of the hot air flow in various areas above the cabinet 1; thereby, through the horizontal reciprocating motion of the movable baffle 6 and the change of the coverage area of ​​the air hole 202, the reverse reciprocating motion of the fan blades 16 is coordinated to alternately change the airflow guidance direction, and the change of the position of the piston plate 18 and the air port 131 is coordinated to effectively improve the airflow dispersion and discharge effect at various positions in the area above the cabinet 1, and effectively avoid the accumulation of hot air that is difficult to dissipate, thereby improving the heat dissipation and cooling efficiency.

[0024] Embodiment 2: Embodiment 2 includes all structures and methods of Embodiment 1, with reference to Figure 1-Figure 8 , a power distribution cabinet that is easy to dissipate heat, also includes, a plurality of mounting frames 21 are fixed on both sides of the cabinet 1, a gap is left between the mounting frames 21 and the side walls of the cabinet 1, a plurality of through slots three are opened on both sides of the cabinet 1, and a heat dissipation strip 20 is fixed on the inner wall of the through slots three, and the heat dissipation strip 20 is vertically extended, and a plurality of elastic sheets 22 are fixed at one end of the horizontal part of the movable baffle 6, and the elastic sheet 22 extends toward the heat dissipation strip 20. During long-term use, the heat in the cabinet 1 can be directly exchanged with the external environment through the heat dissipation strip 20 for cooling, and through the frame 2 and the cool heat dissipation cavity 3 for cooling, and in the process of horizontal reciprocating movement of the movable baffle 6 in coordination with the air flow movement, the elastic sheet 22 swings vertically to disperse the air flow at the bottom of the frame 2, and cooperates with the dispersed mounting frames 21 and heat dissipation strips 20 so that the air flow on both sides of the cabinet 1 can move vertically, thereby improving the overall air flow of the cabinet 1. After moving vertically from both sides, the heat dissipation effect is dispersed between the two frames 2 and the perforation 102 position, thereby improving the heat dissipation effect of the power distribution cabinet during long-term use.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power distribution cabinet for facilitating heat dissipation, comprising a cabinet body (1), characterized in that: Also included are two frames (2); The frame (2) is fixed to two sides of the top of the cabinet (1); a heat dissipation cavity (3) is formed between the frame (2) and the cabinet (1); cabinet door panels (4) are detachably connected to both ends of the cabinet (1); and mesh panels (5) are provided at positions on the cabinet door panels (4) corresponding to the heat dissipation cavity (3); The side wall and the bottom of the frame (2) are provided with a slide groove (201), and the side wall of the frame (2) facing the cabinet (1) is provided with a plurality of air holes (202), the air holes (202) on the slide groove (201) are distributed at one end of the frame (2), and the air holes (202) on the two frames (2) are distributed at two symmetrical positions at both ends, a movable baffle (6) is slidably provided on the slide groove (201), and the movable baffle (6) is provided with a vertical portion and a horizontal portion, and both sides of the top of the cabinet (1) are provided with a through groove (101), and the vertical portion is in sliding contact with the through groove (101), and the cabinet (1) A mounting box (7) is fixed on the top, and limit blocks (8) are fixed on both sides of the mounting box (7). A horizontally extending through slot (601) is provided on the top of one side of the vertical portion, and the outer wall of the limit block (8) is in sliding contact with the inner wall of the through slot (601). Mounting holes are provided on both sides of the top of the mounting box (7), and a shaft rod (9) is rotatably connected to the inner wall of the mounting hole. A gear (10) is fixed to the outer wall of the shaft rod (9), and a tooth block (11) distributed in a horizontal direction is fixed at a position corresponding to the gear (10) on the side wall of the movable baffle (6), and the shaft rod (9) is transmission-connected to a drive motor (12).

2. A power distribution cabinet for facilitating heat dissipation according to claim 1, characterized in that: A connecting opening is provided in the middle of the top of the installation box (7), a connecting box (13) with top and bottom openings is fixed in the connecting opening, a fixing frame (14) is installed on the inner wall of the connecting box (13), a second shaft rod (15) extending vertically is rotatably connected to the fixing frame (14), and a fan blade (16) is fixed to the outer wall of the second shaft rod (15) below the fixing frame (14).

3. A power distribution cabinet for facilitating heat dissipation according to claim 2, characterized in that: A synchronous belt (17) is provided between the shaft rod 2 (15) and the two shaft rods 1 (9) in transmission connection, and the drive motor (12) is provided with an output shaft of the drive motor (12) fixed to the top end of one of the shaft rods 1 (9).

4. A power distribution cabinet for facilitating heat dissipation according to claim 3, characterized in that: A box cover (132) is fixed to the top of the connection box (13), air ports (131) are provided at the top positions of the four sides of the connection box (13), a gap is left between the bottom of the connection box (13) and the top of the cabinet (1), a plurality of through holes (102) are provided on the top of the cabinet (1), and both ends of the installation box (7) are detachably connected to box door panels (19), and mesh holes are provided on the box door panels (19).

5. A power distribution cabinet for facilitating heat dissipation according to claim 4, characterized in that: The second shaft rod (15) is located above the fixing frame (14) and is configured as a threaded rod, the outer wall of the threaded rod is threadedly connected to a piston plate (18), and the outer wall of the piston plate (18) is in sliding contact with the inner wall of the connection box (13).

6. A power distribution cabinet for facilitating heat dissipation according to claim 5, characterized in that: When the movable baffle (6) moves toward the direction close to the air hole (202) as the gear (10) rotates, the fan blade (16) guides air upward and the piston plate (18) moves upward along the threaded rod.

7. A power distribution cabinet for facilitating heat dissipation according to any one of claims 1 to 6, characterized in that: A plurality of mounting frames (21) are fixed on both sides of the cabinet (1), a plurality of through slots (3) are opened on both sides of the cabinet (1), a heat dissipation strip (20) is fixed on the inner wall of the through slots (3), the heat dissipation strip (20) is vertically extended, and a plurality of elastic sheets (22) are fixed on one end of the horizontal portion of the movable baffle (6), the elastic sheets (22) extend in the direction of the heat dissipation strip (20).

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