Low-voltage distribution box

Abstract

The utility model provides a low-voltage distribution box, and relates to the technical field of distribution boxes. The low-voltage distribution box comprises a box body, an exhaust groove is formed in the top of the box body, an air inlet groove is formed in one side face of the box body, a filter screen for shielding the air inlet groove is arranged on one side face of the box body, a heat dissipation mechanism for conducting heat dissipation on the interior of the box body is installed on the inner top of the box body, and the heat dissipation mechanism comprises an exhaust fan. Two fixing plates are fixedly connected to the inner top wall of the box body, and a fixing box is fixedly connected between the two fixing plates. Impurities and dust in sucked air are filtered through an arranged filter screen, a connecting sliding block is driven to horizontally slide back and forth at the bottom of a fixed box under the action of a driving mechanism, and an exhaust fan is driven to horizontally move back and forth on the inner top wall of a box body under the connection action of the connecting sliding block, a movable rod and a fixed rod; therefore, comprehensive air exhaust and heat dissipation are carried out on the interior of the box body, and the heat dissipation effect on the interior of the box body is improved.

Description

Technical Field

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

[0002] The distribution box is a massive parameter on the data. Generally, it constitutes a low-voltage forest according to the electrical wiring. It requires that the switchgear, measuring instruments, protective electrical appliances and auxiliary equipment are assembled in a closed or semi-closed metal cabinet or on a screen to form a low-voltage distribution box. The distribution box has the characteristics of small size, easy installation, special technical performance, fixed position, unique configuration function, no site restrictions, relatively common application, stable and reliable operation, high space utilization, small footprint and environmental protection effect.

[0003] Chinese patent announcement number CN210517440U discloses a low-voltage distribution box, including a box body, a box door is arranged on the side of the box body, a box cover is arranged on the top of the box body, a cover heat dissipation port is opened on the side of the box cover, and the cover heat dissipation port is provided with a plurality of first groove plates, the plurality of first groove plates are arranged linearly, and the notches of the first groove plates are all arranged toward the outside of the box cover, and a gap for air circulation is provided between two adjacent first groove plates; a second groove plate is provided between every two adjacent first groove plates, the notches of the second groove plates are all arranged toward the inside of the box cover, and a gap for air circulation is provided between the second groove plate and the first groove plate; between every two adjacent second groove plates, a slope is provided at the lower edge of the cover heat dissipation port.

[0004] However, the inventor of the above device believes that there are certain defects. The ventilation fan in the above device is fixed at the bottom of the box, which has a poor overall heat dissipation effect on the inside of the box and reduces the service life of the distribution box. For this reason, the utility model provides a low-voltage distribution box. Utility Model Content

[0005] The purpose of the utility model is to provide a low-voltage distribution box in order to solve the above problems, so as to solve the problem in the prior art that it is not convenient to fully and evenly dissipate heat inside the box.

[0006] The utility model is implemented through the following technical scheme: a low-voltage distribution box comprises a box body, an exhaust slot is provided on the top of the box body, an air inlet slot is provided on one side of the box body, a filter screen for shielding the air inlet slot is provided on one side of the box body, a heat dissipation mechanism for dissipating heat inside the box body is installed on the inner top of the box body, the heat dissipation mechanism comprises an exhaust fan, two fixing plates are fixedly connected to the inner top wall of the box body, a fixing box is fixedly connected between the two fixing plates, a connecting slider is slidably connected inside the fixing box, a movable rod is fixedly connected to the connecting slider, a fixing rod is fixedly connected to the top of the exhaust fan, the fixing rod is fixedly connected to one end of the movable rod, and a driving mechanism for driving the connecting slider to slide back and forth is provided inside the fixing box.

[0007] Preferably, the driving mechanism includes a main pulley and a secondary pulley rotating inside a fixed box, the secondary pulley and the main pulley are connected via a conveying belt transmission, a sliding groove is provided on the connecting slider, an extrusion block is fixedly connected to the conveying belt, the extrusion block slides inside the sliding groove, and the main pulley is driven to rotate, so that the conveying belt is transmitted between the main pulley and the secondary pulley, and the sliding groove on the connecting slider is squeezed by the extrusion block on the conveying belt, thereby driving the connecting slider to slide back and forth inside the fixed box.

[0008] Preferably, the driving mechanism further comprises a driving motor fixed on the fixed box, the output shaft of the driving motor is fixedly connected to the main pulley, and the main pulley is driven to rotate by starting the driving motor, so that the conveying belt is transmitted inside the fixed box.

[0009] Preferably, a side surface of the box body is fixedly connected to a fixing seat, the inside of the fixing seat is slidably connected to a connecting rod, one end of the connecting rod is fixedly connected to a movable clamping block, the filter net is clamped between two movable clamping blocks, and the two groups of fixing seats are pulled away from each other so that the two movable clamping blocks are moved away from each other, thereby facilitating the removal of the filter net from between the two movable clamping blocks for cleaning and replacement.

[0010] Preferably, the other end of the connecting rod is fixedly connected to a connecting plate, and a spring is sleeved on the connecting rod. The setting of the connecting plate facilitates pulling the connecting rod away from the filter screen, and under the action of the spring, the two movable clamps facilitate stably clamping and fixing the filter screen.

[0011] Preferably, a socket and a circuit breaker are fixedly connected to the other side of the box, and a current transformer is fixedly connected to the inside of the box.

[0012] Preferably, a switching power supply is fixedly connected inside the box, and a grounding bar is fixedly connected to the inner wall of the box.

[0013] Preferably, both ends of the fixing box are provided with connecting grooves, and both ends of the connecting slider slide inside the two connecting grooves respectively, and the stability of the connecting slider during horizontal sliding is increased by the provided connecting grooves.

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

[0015] The device accelerates the exhaust of air inside the box by starting the exhaust fan, and the outside air enters the inside of the box through the air inlet slot, accelerating the air circulation inside the box to dissipate heat, and filters impurities and dust in the inhaled air through the set filter screen, and drives the connecting slider to slide back and forth horizontally on the bottom of the fixed box under the action of the driving mechanism, and drives the exhaust fan to move back and forth horizontally on the inner top wall of the box under the connection of the connecting slider, the movable rod and the fixed rod, thereby comprehensively exhausting and dissipating air inside the box, thereby improving the heat dissipation effect inside the box.

[0016] The device pulls the two connecting plates away from each other, and the two movable clamps are pulled away from each other under the connecting action of the connecting rod, so that the filter screen can be quickly removed from between the two movable clamps, thereby facilitating the cleaning and replacement of the filter screen. Under the action of the spring, the two movable clamps can stably clamp and fix the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view of the box body of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the box of the utility model;

[0019] Figure 3 It is a three-dimensional diagram of the fixing box structure of the utility model;

[0020] Figure 4 This is a three-dimensional diagram of the connecting slider structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the filter installation structure of the utility model.

[0022]

Main component symbol description

[0023] 1. Box body; 11. Exhaust slot; 12. Air inlet slot; 13. Socket; 14. Circuit breaker; 15. Current transformer; 16. Grounding bar; 17. Switching power supply; 2. Filter; 21. Movable clamp; 22. Fixed seat; 23. Connecting rod; 24. Connecting plate; 3. Fixed plate; 4. Fixed box; 41. Connecting slot; 5. Exhaust fan; 51. Fixed rod; 6. Conveyor belt; 61. Main pulley; 62. Secondary pulley; 63. Driving motor; 64. Extrusion block; 7. Connecting slider; 8. Movable rod. DETAILED DESCRIPTION

[0024] The embodiment of the utility model provides a low-voltage distribution box.

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The low-voltage distribution box includes a box body 1, an exhaust slot 11 is provided on the top of the box body 1, an air inlet slot 12 is provided on one side of the box body 1, and a filter screen 2 is provided on one side of the box body 1 to shield the air inlet slot 12. The air inside the box body 1 is discharged through the exhaust slot 11, and the outside air is sucked into the box body 1 through the air inlet slot 12, and the air sucked into the box body 1 is filtered by the filter screen 2. A fixed seat 22 is fixedly connected to one side of the box body 1, and a connection is slidably connected inside the fixed seat 22. Rod 23, one end of the connecting rod 23 is fixedly connected with a movable clamping block 21, the filter screen 2 is clamped between the two movable clamping blocks 21, the other end of the connecting rod 23 is fixedly connected with a connecting plate 24, a spring is sleeved on the connecting rod 23, and the two movable clamping blocks 21 are C-shaped. By pulling the two connecting plates 24 away from each other, the two movable clamping blocks 21 are pulled away from each other under the connecting action of the connecting rod 23, it is convenient to quickly remove the filter screen 2 from between the two movable clamping blocks 21, thereby facilitating the cleaning and replacement of the filter screen 2.

[0026] Please refer again Figure 1 , Figure 2 and Figure 3 A socket 13 and a circuit breaker 14 are fixedly connected to the other side of the box 1, a current transformer 15 is fixedly connected to the inside of the box 1, a switching power supply 17 is fixedly connected to the inside of the box 1, a grounding bar 16 is fixedly connected to the inner wall of the box 1, and a heat dissipation mechanism for dissipating heat inside the box 1 is installed on the inner top of the box 1. The heat dissipation mechanism includes an exhaust fan 5. By starting the exhaust fan 5 to accelerate the discharge of air inside the box 1 through the exhaust slot 11, the electrical components inside the box 1 are cooled.

[0027] Please refer again Figure 1 , Figure 2 , Figure 3 and Figure 4 Two fixing plates 3 are fixedly connected to the inner top wall of the box body 1, a fixing box 4 is fixedly connected between the two fixing plates 3, a connecting slider 7 is slidably connected inside the fixing box 4, connecting grooves 41 are provided at both ends of the fixing box 4, both ends of the connecting slider 7 slide in the two connecting grooves 41 respectively, a movable rod 8 is fixedly connected to the connecting slider 7, a fixing rod 51 is fixedly connected to the top of the exhaust fan 5, and the fixing rod 51 is fixedly connected to one end of the movable rod 8. By starting the connecting slider 7 to slide horizontally inside the fixing box 4, the exhaust fan 5 is driven to move horizontally during the exhaust process under the connection action of the connecting slider 7, the movable rod 8 and the fixed rod 51, thereby comprehensively and evenly dissipating the heat inside the box body 1.

[0028] Please refer again Figure 1 , Figure 2 , Figure 3 and Figure 4A driving mechanism for driving the connecting slider 7 to slide back and forth is provided inside the fixed box 4. The driving mechanism includes a main pulley 61 and a secondary pulley 62 rotating inside the fixed box 4. The secondary pulley 62 and the main pulley 61 are connected by a conveying belt 6. A sliding groove is provided on the connecting slider 7. An extrusion block 64 is fixedly connected to the conveying belt 6. The extrusion block 64 slides inside the sliding groove. The driving mechanism also includes a driving motor 63 fixed on the fixed box 4. The output shaft of the driving motor 63 is fixedly connected to the main pulley 61. The extrusion block 64 is cylindrical. The main pulley 61 is driven to rotate by starting the driving motor 63, so that the conveying belt 6 is transmitted and transported between the main pulley 61 and the secondary pulley 62. Through the continuous transmission of the conveying belt 6, the extrusion block 64 on the conveying belt 6 squeezes the sliding groove on the connecting slider 7, thereby driving the connecting slider 7 to slide horizontally back and forth inside the fixed box 4.

[0029] Working principle: by starting the exhaust fan 5 to accelerate the air inside the box 1 to be discharged through the exhaust slot 11, the outside air is sucked into the box 1 through the air inlet slot 12, thereby accelerating the air circulation inside the box 1 to dissipate heat inside the box 1, and the air sucked into the box 1 is filtered under the action of the filter 2 to filter out dust and impurities in the air, and by starting the driving motor 63 to drive the main pulley 61 to rotate, so that the conveying belt 6 is transmitted between the main pulley 61 and the auxiliary pulley 62, and the sliding groove on the connecting slider 7 is squeezed by the squeezing block 64, so as to drive the connecting slider 7 to slide horizontally reciprocatingly inside the fixed plate 3, and the exhaust fan 5 is driven to move horizontally during the exhaust process under the connection of the connecting slider 7, the movable rod 8 and the fixed rod 51, so as to dissipate heat comprehensively and evenly inside the box 1, and by pulling the two connecting plates 24 away from each other, the two movable clamping blocks 21 are moved away from each other under the connection of the connecting rod 23, so as to facilitate the rapid removal of the filter 2 from between the two movable clamping blocks 21, so as to clean and replace the filter 2.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A low voltage distribution box, comprising a box body (1), characterized in that: The top of the box (1) is provided with an exhaust slot (11), one side of the box (1) is provided with an air inlet slot (12), one side of the box (1) is provided with a filter screen (2) for shielding the air inlet slot (12), the inner top of the box (1) is provided with a heat dissipation mechanism for dissipating heat inside the box (1), the heat dissipation mechanism comprising an exhaust fan (5), two fixing plates (3) are fixedly connected to the inner top wall of the box (1), a fixing box (4) is fixedly connected between the two fixing plates (3), a connecting slider (7) is slidably connected inside the fixing box (4), a movable rod (8) is fixedly connected to the connecting slider (7), the top of the exhaust fan (5) is fixedly connected with a fixing rod (51), the fixing rod (51) is fixedly connected to one end of the movable rod (8), and a driving mechanism for driving the connecting slider (7) to slide back and forth is provided inside the fixing box (4).

2. The low voltage distribution box according to claim 1, characterized in that: The driving mechanism comprises a main pulley (61) and a secondary pulley (62) which rotate inside a fixed box (4); the secondary pulley (62) and the main pulley (61) are connected to each other via a conveying belt (6); a sliding groove is provided on the connecting slider (7); an extrusion block (64) is fixedly connected to the conveying belt (6); and the extrusion block (64) slides inside the sliding groove.

3. The low voltage distribution box according to claim 2, characterized in that: The driving mechanism further comprises a driving motor (63) fixed on the fixing box (4), and an output shaft of the driving motor (63) is fixedly connected to the main pulley (61).

4. The low voltage distribution box according to claim 1, characterized in that: A fixing seat (22) is fixedly connected to one side of the box body (1), a connecting rod (23) is slidably connected inside the fixing seat (22), one end of the connecting rod (23) is fixedly connected to a movable clamping block (21), and the filter screen (2) is clamped between two movable clamping blocks (21).

5. The low voltage distribution box according to claim 4, characterized in that: The other end of the connecting rod (23) is fixedly connected to a connecting plate (24), and a spring is sleeved on the connecting rod (23).

6. The low voltage distribution box according to claim 1, characterized in that: A socket (13) and a circuit breaker (14) are fixedly connected to the other side of the box (1), and a current transformer (15) is fixedly connected to the interior of the box (1).

7. The low voltage distribution box according to claim 1, characterized in that: A switch power supply (17) is fixedly connected to the interior of the box (1), and a grounding bar (16) is fixedly connected to the inner wall of the box (1).

8. The low voltage distribution box according to claim 1, characterized in that: Both ends of the fixing box (4) are provided with connection grooves (41), and both ends of the connection slide block (7) slide inside the two connection grooves (41) respectively.

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