CN211428718U - Good heat dissipation's switch board - Google Patents

Abstract

The utility model discloses a power distribution cabinet with good heat dissipation, comprising a box body, a heat dissipation unit and a ventilation unit. The top plate of the box body is provided with a rectangular slot, and the upper end of the rectangular slot of the box body is provided with a second filter screen. Both ends of the upper surface of the box are fixedly connected with pillars, the upper surface of the pillars are fixedly connected with the lower surface of the cover plate, the middle of the bottom plate of the box is fixedly connected with an induced draft fan, and the lower surface of the induced draft fan is fixedly connected with a first filter screen The left and right sides of the box are provided with rectangular through holes, the heat dissipation unit is arranged at the top of the box, the ventilation unit is symmetrically arranged in the middle of the left and right side plates of the box, and also includes a PLC controller, which is fixedly connected to the On the inner side of the left side panel of the box, the power distribution cabinet with good heat dissipation improves the heat dissipation efficiency and reduces the power consumption, prevents rainwater and dust from entering the inside of the box, and prolongs the service life of the internal electrical components. Mobile, provides convenience for people.

Description

A power distribution cabinet with good heat dissipation

technical field

The utility model relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet with good heat dissipation.

Background technique

The power distribution cabinet is divided into the power distribution cabinet and the lighting distribution cabinet. It is the final equipment of the power distribution system. The power distribution cabinet is the general name of the motor control center. The center is used for the occasions where the load is concentrated and there are many circuits. They distribute the electric energy of a certain circuit of the upper-level power distribution equipment to the nearby load. This level of equipment should provide protection, monitoring and control for the load. When the outdoor power distribution cabinet is working , because the work of its internal electronic components will generate a lot of heat, so it needs a heat dissipation device. When the electronic components are aging, it is easy to cause a fire. If the staff cannot find it in time, it will have a huge impact. For this reason, we propose A power distribution cabinet with good heat dissipation can solve the above defects.

Utility model content

The technical problem to be solved by the utility model is to overcome the existing defects and provide a power distribution cabinet with good heat dissipation, which can improve the heat dissipation efficiency and reduce the consumption of electric energy at the same time. The service life of the internal electrical components, and the movement is possible, provides convenience for people, and can effectively solve the problems in the background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a power distribution cabinet with good heat dissipation, comprising a box body, a heat dissipation unit and a ventilation unit;

Box body: the top plate of the box body is provided with a rectangular slot, the upper end of the rectangular slot of the box body is provided with a second filter screen, and both ends of the upper surface of the box body are fixedly connected with pillars. The upper surface of the casing is fixedly connected with the lower surface of the cover plate, the middle of the bottom plate of the box is fixedly connected with an induced draft fan, the lower surface of the induced draft fan is fixedly connected with a first filter screen, the left and right side panels of the box body are fixedly connected All are provided with rectangular through holes;

Heat dissipation unit: the heat dissipation unit is arranged at the top of the box;

Ventilation unit: the ventilation unit is symmetrically arranged in the middle of the left and right side panels of the box;

Wherein: it also includes a PLC controller, the PLC controller is fixedly connected to the inner side of the left side panel of the box body, the input end of the PLC controller is electrically connected to an external power supply, and the output end of the PLC controller is electrically connected to the induced draft fan The temperature sensor detects the internal temperature of the box and transmits the signal to the PLC controller. When the internal temperature of the box is normal, the induced draft fan is always activated to filter the outside air of the box through the first filter and then suck it into the air of the box. Internally, the electrical components are dissipated. When the temperature inside the box is too high, the PLC controller controls the motor and the electric push rod to start respectively. The motor drives the middle shaft to rotate, and the middle shaft drives the two slave gears to rotate through the main gear. The two slave gears respectively drive the corresponding rotating shafts to rotate, the rotating shafts drive the corresponding fan blades to rotate to blow air into the inside of the box, and the electric push rod pushes the connecting plate to rise, so that the connecting plate drives the lower end of the folding plate to move upward for folding. The lower end of the rectangular through hole is opened to increase the air discharge channel inside the box, so as to avoid the circulation of hot air in the box and affect the heat dissipation efficiency. The power distribution cabinet with good heat dissipation can adopt different heat dissipation according to the temperature inside the box. The measures can improve the heat dissipation efficiency and reduce the consumption of electric energy. At the same time, it can prevent rainwater and dust from entering the inside of the box, prolong the service life of the internal electrical components, and can be moved, providing convenience for people.

Further, the heat dissipation unit includes a motor, a main gear, a slave gear, a rotating shaft and a fan blade, the motor is fixedly connected to the middle of the upper surface of the cover plate, and the output shaft of the motor passes through the circular hole in the middle of the cover plate, so There are three rotating shafts and they are arranged at equal distances. The top of the middle rotating shaft is fixedly connected to the lower end of the output shaft of the motor. The top ends of the outer arc surfaces of the rotating shafts on both sides are rotatably connected to the circular holes of the cover plate. The main gear is fixedly connected to the outside of the middle rotating shaft. The cambered surface, the secondary gears are fixedly connected with the outer cambered surfaces of the rotating shafts on both sides respectively, the main gears are respectively meshed with the two secondary gears, and the rotating shafts pass through the through holes of the second filter screen and extend to the bottom of the box. Below the top plate, the fan blades are respectively fixedly connected to the lower ends of the corresponding rotating shafts, and the input end of the motor is electrically connected to the output end of the PLC controller to increase the air flow rate inside the box to dissipate heat and improve the heat dissipation effect.

Further, the ventilation unit includes a folding plate, a connecting plate, a fixing plate, a chute, an electric push rod and a mounting block, and the upper end of the folding plate is fixedly connected with the top end of the rectangular through hole of the side plate of the box body. The lower end of the connecting plate is fixedly connected with the outer end of the upper surface of the connecting plate, the lower surface of the connecting plate is in contact with the inner lower surface of the rectangular through hole of the side plate of the box body, one end of the connecting plate extends to the inside of the box body, the connection The front and rear sides of the plate are provided with sliders, the upper end of the electric push rod is fixedly connected to the middle part of the lower surface of the connecting plate, the mounting block is fixedly connected to the inside of the side plate of the box, and the upper surface of the mounting block is connected to the middle of the lower surface of the connecting plate. The lower end of the electric push rod is fixedly connected, the fixed plate is symmetrically arranged on the inner sides of the left and right side panels of the box, the chute is arranged on the side of the fixed plate close to the electric push rod, and the inside of the chute is connected to the The slider corresponding to the board is slidably connected, and the input end of the electric push rod is electrically connected to the output end of the PLC controller. By controlling the unfolding and shrinking of the folding board, the ventilation rate between the box and the outside is controlled, which improves the heat dissipation type and can effectively prevent the External dust and rain enter.

Further, it also includes a temperature sensor, the temperature sensor is fixedly connected to the inner right side of the box body, and the output end of the temperature sensor is electrically connected to the input end of the PLC controller, so as to facilitate the measurement of the temperature inside the box body, thereby Take different cooling measures.

Further, the waterproof plate and the casters, the upper end of the waterproof plate is fixedly connected with the outer side of the cover plate, the lower end of the waterproof plate extends to the bottom of the top plate of the box body, and the casters are symmetrically arranged on the lower surface of the bottom plate of the box body, The waterproof plate prevents external rainwater from entering the inside of the box, and the casters facilitate the movement of the box.

Compared with the prior art, the beneficial effect of the utility model is that the power distribution cabinet with good heat dissipation has the following advantages:

The temperature sensor detects the internal temperature of the box and transmits the signal to the PLC controller. When the internal temperature of the box is normal, the induced draft fan has been started to filter the outside air of the box through the first filter and suck it into the inside of the box. The components dissipate heat. When the temperature inside the box is too high, the PLC controller controls the motor and the electric push rod to start respectively. The motor drives the middle shaft to rotate. The middle shaft drives the two slave gears to rotate through the main gear, and the two slave gears rotate. The corresponding rotating shafts are respectively driven to rotate, and the rotating shafts drive the corresponding fan blades to rotate to blow air inside the box body. It is opened to increase the air discharge channel inside the box, so as to avoid the circulation of hot air in the box to affect the heat dissipation efficiency. The power distribution cabinet with good heat dissipation can take different heat dissipation measures according to the temperature inside the box to improve heat dissipation. At the same time, the efficiency can reduce the consumption of electric energy, and at the same time, it can prevent rainwater and dust from entering the inside of the box, prolong the service life of the internal electrical components, and can be moved, which provides convenience for people.

Description of drawings

Fig. 1 is the front view sectional structure schematic diagram of the utility model;

FIG. 2 is a schematic diagram of the enlarged structure of the utility model A. FIG.

In the picture: 1 box, 2 pillars, 3 cover, 4 waterproof plate, 5 PLC controller, 6 cooling unit, 61 motor, 62 main gear, 63 slave gear, 64 shaft, 65 fan blades, 7 ventilation unit, 71 Folding board, 72 connecting board, 73 fixing board, 74 chute, 75 electric push rod, 76 mounting block, 8 temperature sensor, 9 casters, 10 induced draft fan, 11 first filter screen, 12 second filter screen.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-2, the present invention provides a technical solution: a power distribution cabinet with good heat dissipation, comprising a box body 1, a heat dissipation unit 6 and a ventilation unit 7;

Box 1: The top plate of box 1 is provided with a rectangular slot, the upper end of the rectangular slot of box 1 is provided with a second filter screen 12, and both ends of the upper surface of box 1 are fixedly connected with pillars 2. The upper surface is fixedly connected with the lower surface of the cover plate 3, the middle of the bottom plate of the box body 1 is fixedly connected with the induced draft fan 10, the lower surface of the induced draft fan 10 is fixedly connected with the first filter screen 11, and the left and right side panels of the box body 1 are fixed. A rectangular through hole is provided, and the temperature sensor 8 detects the internal temperature of the box body 1 and transmits the signal to the PLC controller 5. When the internal temperature of the box body 1 is normal, the induced draft fan 10 has been started to pass the outside air of the box body 1 through the first. After filtering, the filter screen 11 is sucked into the interior of the box body 1 to dissipate heat to the electrical components;

Heat dissipation unit 6: The heat dissipation unit 6 includes a motor 61, a main gear 62, a slave gear 63, a rotating shaft 64 and a fan blade 65. The motor 61 is fixedly connected to the middle of the upper surface of the cover plate 3, and the output shaft of the motor 61 passes through the middle of the cover plate 3. The top of the rotating shaft 64 in the middle is fixedly connected with the lower end of the output shaft of the motor 61, the top of the outer arc surface of the rotating shaft 64 on both sides is rotatably connected with the circular hole of the cover plate 3, and the main gear 62 It is fixedly connected to the outer arc surface of the rotating shaft 64 in the middle, and the secondary gear 63 is fixedly connected to the outer arc surface of the rotating shaft 64 on both sides respectively. The main gear 62 is meshed with the two secondary gears 63 respectively. The through hole extends to the bottom of the top plate of the box body 1, the fan blades 65 are respectively fixedly connected with the lower ends of the corresponding rotating shafts 64, and the input end of the motor 61 is electrically connected to the output of the PLC controller 5. When the temperature inside the box body 1 is too high, The PLC controller 5 controls the motor 61 and the electric push rod 75 to start respectively, the motor 61 drives the middle shaft 64 to rotate, the middle shaft drives the two slave gears 63 to rotate through the main gear 62 , and the two slave gears 63 drive the corresponding shafts 64 respectively. Rotating, the rotating shaft 64 drives the corresponding fan blades 65 to rotate to blow air inside the box 1, increasing the air flow rate;

Ventilation unit 7: The ventilation unit 7 includes a folding plate 71, a connecting plate 72, a fixing plate 73, a chute 74, an electric push rod 75 and a mounting block 76. The upper end of the folding plate 71 is fixed to the top end of the rectangular through hole on the side plate of the box 1 Connection, the lower end of the folding plate 71 is fixedly connected with the outer end of the upper surface of the connecting plate 72, the lower surface of the connecting plate 72 is in contact with the inner lower surface of the rectangular through hole of the side plate of the box body 1, and one end of the connecting plate 72 extends to the box body 1 Inside, the front and rear sides of the connecting plate 72 are provided with sliders, the upper end of the electric push rod 75 is fixedly connected to the middle of the lower surface of the connecting plate 72, the mounting block 76 is fixedly connected to the inside of the side plate of the box 1, and the mounting block 76 The upper surface of the electric push rod 75 is fixedly connected with the lower end of the electric push rod 75. The fixed plate 73 is symmetrically arranged on the inner sides of the left and right side plates of the box body 1, and the chute 74 is arranged on the side of the fixed plate 73 close to the electric push rod 75. The inside of 74 is slidably connected with the slider corresponding to the connecting plate 72 , the input end of the electric push rod 75 is electrically connected to the output end of the PLC controller 5 , and the electric push rod 75 pushes the connecting plate 72 to rise, so that the connecting plate 72 drives the folding plate 71 . The lower end moves upwards to be folded, and the lower end of the rectangular through hole of the side plate of the box body 1 is opened, which increases the air discharge channel inside the box body 1, and avoids the circulation of hot air in the box body 1 and affects the heat dissipation efficiency;

Wherein: it also includes a temperature sensor 8, a waterproof plate 4 and casters 9, the temperature sensor 8 is fixedly connected to the inner right side of the box body 1, the output end of the temperature sensor 8 is electrically connected to the input end of the PLC controller 5, and the The upper end is fixedly connected with the outer side of the cover plate 3 , the lower end of the waterproof plate 4 extends to the bottom of the top plate of the box body 1 , the casters 9 are symmetrically arranged on the lower surface of the bottom plate of the box body 1 , and the waterproof plate 4 prevents external rainwater from passing through the box body 1 . The upper end enters the inside of the box body 1, and the casters 9 facilitate the movement of the box body 1 and are convenient to use.

Wherein: also includes a PLC controller 5, the PLC controller 5 is fixedly connected to the inner side of the left side panel of the box body 1, the input end of the PLC controller 5 is electrically connected to an external power supply, and the output end of the PLC controller 5 is electrically connected to the induced draft fan 10 the input terminal.

In use: the temperature sensor 8 detects the internal temperature of the box 1 and transmits the signal to the PLC controller 5. When the internal temperature of the box 1 is normal, the induced draft fan 10 is always activated to pass the outside air of the box 1 through the first filter screen 11 After filtering, it is sucked into the inside of the box 1 to dissipate heat for the electrical components. When the temperature inside the box 1 is too high, the PLC controller 5 controls the motor 61 and the electric push rod 75 to start respectively, and the motor 61 drives the middle shaft 64 to rotate , the middle rotating shaft drives the two slave gears 63 to rotate through the main gear 62, the two slave gears 63 drive the corresponding rotating shafts 64 to rotate, and the rotating shaft 64 drives the corresponding fan blades 65 to rotate to blow air inside the box 1, and the electric push rod 75 pushes The connecting plate 72 rises, so that the connecting plate 72 drives the lower end of the folding plate 71 to move upward for folding, and the lower end of the rectangular through hole of the side plate of the box body 1 is opened, which increases the air discharge channel inside the box body 1 and prevents the hot air from entering the box body. 1. The internal circulating flow affects the heat dissipation efficiency. The waterproof plate 4 prevents external rainwater from entering the interior of the box 1 from the upper end of the box 1. The casters 9 facilitate the movement of the box 1 and are convenient to use.

It is worth noting that the specific model of the PLC controller 5 disclosed in this embodiment is Siemens S7-200, the motor 61, the electric push rod 75 and the temperature sensor 8 can be freely configured according to the actual application scene, and the motor 61 is recommended to be selected from Shenzhen. The 90W miniature speed regulating motor produced by Rong Li Chuang Motor Co., Ltd., the temperature sensor 8 can be selected from the CWDZ18 wall-mounted temperature transmitter PLC controller 5 produced by Beijing Xingyi Sensor Technology Co., Ltd. The control motor 61, the electric push rod 75 and the temperature sensor 8 The work adopts the method commonly used in the prior art.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. A power distribution cabinet with good heat dissipation, characterized in that it comprises a box body (1), a heat dissipation unit (6) and a ventilation unit (7); Box body (1): the top plate of the box body (1) is provided with a rectangular slot, the upper end of the rectangular slot of the box body (1) is provided with a second filter screen (12), and the box body (1) is provided with a second filter screen (12). Both ends of the upper surface of the box (1) are fixedly connected with pillars (2), the upper surfaces of the pillars (2) are fixedly connected with the lower surface of the cover plate (3), and the middle of the bottom plate of the box body (1) is fixedly connected with a an induced draft fan (10), the lower surface of the induced draft fan (10) is fixedly connected with a first filter screen (11), and the left and right side plates of the box body (1) are provided with rectangular through holes; Heat dissipation unit (6): the heat dissipation unit (6) is arranged at the top of the box body (1); Ventilation unit (7): the ventilation unit (7) is symmetrically arranged in the middle of the left and right side panels of the box body (1); Wherein: it also includes a PLC controller (5), the PLC controller (5) is fixedly connected to the inner side surface of the left side panel of the box body (1), and the input end of the PLC controller (5) is electrically connected to an external power supply, The output end of the PLC controller (5) is electrically connected to the input end of the induced draft fan (10). 2. A power distribution cabinet with good heat dissipation according to claim 1, characterized in that: the heat dissipation unit (6) comprises a motor (61), a main gear (62), a slave gear (63), a rotating shaft ( 64) and the fan blade (65), the motor (61) is fixedly connected to the middle of the upper surface of the cover plate (3), and the output shaft of the motor (61) passes through the circular hole in the middle of the cover plate (3), so The rotating shafts (64) are provided with three equidistant distances. The top of the rotating shaft (64) in the middle is fixedly connected to the lower end of the output shaft of the motor (61). The holes are rotatably connected, the main gear (62) is fixedly connected to the outer arc surface of the middle shaft (64), and the slave gears (63) are fixedly connected to the outer arc surfaces of the rotating shafts (64) on both sides respectively. (62) are meshed with the two secondary gears (63) respectively, the rotating shaft (64) passes through the through hole of the second filter screen (12) and extends to the bottom of the top plate of the box (1), the fan blades ( 65) are respectively fixedly connected to the lower ends of the corresponding rotating shafts (64), and the input end of the motor (61) is electrically connected to the output end of the PLC controller (5). 3. A power distribution cabinet with good heat dissipation according to claim 1, characterized in that: the ventilation unit (7) comprises a folding plate (71), a connecting plate (72), a fixing plate (73), a sliding A slot (74), an electric push rod (75) and a mounting block (76), the upper end of the folding plate (71) is fixedly connected with the top end of the rectangular through hole of the side plate of the box (1), the folding plate (71) The lower end of the connecting plate (72) is fixedly connected to the outer end of the upper surface of the connecting plate (72), the lower surface of the connecting plate (72) is in contact with the inner lower surface of the rectangular through hole of the side plate of the box (1), the connecting plate (72) One end of the electric push rod (75) extends to the inside of the box (1), the front and rear sides of the connecting plate (72) are provided with sliders, and the upper end of the electric push rod (75) is fixed to the middle of the lower surface of the connecting plate (72). connection, the mounting block (76) is fixedly connected to the inside of the side plate of the box body (1), the upper surface of the mounting block (76) is fixedly connected to the lower end of the electric push rod (75), the fixing plate (73) ) symmetrically arranged on the inner sides of the left and right side panels of the box body (1), the chute (74) is arranged on the side of the fixed plate (73) close to the electric push rod (75), the chute (74) The interior of the electric push rod (75) is slidably connected with the slider corresponding to the connecting plate (72), and the input end of the electric push rod (75) is electrically connected to the output end of the PLC controller (5). 4. A power distribution cabinet with good heat dissipation according to claim 1, characterized in that it further comprises a temperature sensor (8), and the temperature sensor (8) is fixedly connected to the inner right side of the box body (1). On the other hand, the output end of the temperature sensor (8) is electrically connected to the input end of the PLC controller (5). 5. A power distribution cabinet with good heat dissipation according to claim 1, characterized in that it further comprises a waterproof plate (4) and casters (9), the upper end of the waterproof plate (4) being connected to the cover plate (3). ) are fixedly connected, the lower end of the waterproof plate (4) extends below the top plate of the box body (1), and the casters (9) are symmetrically arranged on the lower surface of the bottom plate of the box body (1).

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