CN209823232U - Low-voltage power distribution cabinet for mining - Google Patents

Abstract

The utility model discloses a low-voltage distribution cabinet for mining, including base, the cabinet body and coolant liquid case, the cabinet body is installed at the top of base, and cabinet body one side is fixed with the coolant liquid case through "U" type frame, and the center at cabinet body top is provided with the inlet scoop to the suction hood is installed at the cabinet body top in the inlet scoop outside, and circulating fan is installed to the inboard of suction hood, the output fixedly connected with aspiration channel of suction hood, the output of aspiration channel extend to the inside and the fixedly connected with coil pipe of coolant liquid case, and the output of coil pipe extends to the outside and the fixedly connected with return air hose of coolant liquid case, and the output of return air hose extends to the inside and the fixedly connected with return air cover of cavity. The utility model discloses the heat transfer cooling is realized with the inside coolant liquid of coolant liquid incasement portion to the hot-air, pours into the inside of the cabinet body into again, realizes the mobile heat dissipation of the internal portion air of cabinet, guarantees the radiating effect of switch board body, avoids the leading-in inside of the cabinet body of outside dust simultaneously, prolongs the life of electrical apparatus.

Description

A low-voltage power distribution cabinet for mining

technical field

The utility model relates to the technical field of power distribution cabinets, in particular to a low-voltage power distribution cabinet for mining.

Background technique

The power distribution cabinet used outdoors has high requirements on its heat dissipation performance, especially when the external ambient temperature is high. However, the traditional heat dissipation structure of the heat dissipation system uses the combination of motors and blades, which has the following defects:

1. The dust in open-pit mining is relatively large. The cooling motor is used to drive the blades to rotate to achieve internal and external air circulation to dissipate heat. It is easy to introduce external dust into the interior of the cabinet and affect the service life of electrical appliances;

2. The heat dissipation fan cannot dissipate the heat of the entire power distribution cabinet very well, and most of them dissipate heat locally in the power distribution cabinet, which is not conducive to the overall heat dissipation of the power distribution cabinet;

3. Due to the use of fans and air outlets in the existing power distribution cabinets for heat dissipation, the waterproof and sealing performance becomes poor, and it is easy to get wet and water in the rainy season.

Utility model content

The purpose of this utility model is to provide a low-voltage power distribution cabinet for mining to solve the problem of heat dissipation in the above-mentioned background technology, and it is easy to introduce external dust into the inside of the cabinet, which affects the service life of electrical appliances and is not conducive to the overall heat dissipation of the power distribution cabinet. Poor performance, waterproof and sealing performance, easy to get wet and water in the rainy season.

In order to achieve the above purpose, the utility model provides the following technical solutions: a low-voltage power distribution cabinet for mining, including a base, a cabinet and a coolant tank, a cavity is opened in the center of the top of the base, and a cabinet is installed on the top of the base , the bottom of the cabinet is evenly provided with through holes, and the through holes communicate with the cavity, the inside of the cabinet is evenly provided with electrical chambers through the first partition and the second partition, and one side of the cabinet is hinged. Seal the cabinet door, there is a groove in the middle of the other side of the cabinet, the inside of the groove is fixed with a coolant tank by a "U" frame, and the two "U" frames on the outside of the coolant tank are installed by bolts There is a cooling fan, and the cooling fan is electrically connected to the controller installed on the top side of the sealed cabinet door through wires. The top of the cabinet is fixed and supported by a sun visor, and the center of the top of the cabinet below the sun visor is provided with an air suction port. In addition, a suction hood is installed on the top of the cabinet outside the suction port, and a circulation fan is installed on the inside of the suction hood. The circulation fan is electrically connected to the controller through wires. The output end of the air duct extends to the inside of the coolant tank and is fixedly connected with a coil, the output end of the coil tube extends to the outside of the coolant tank and is fixedly connected with a return air pipe, and the output end of the return air pipe extends to the cavity The interior is fixedly connected with a return air cover, and the return air cover is fixed to the bottom of the cabinet outside the through hole by bolts.

Preferably, the first partition board and the second partition board are fixed on the inner side wall of the cabinet by bolts, and the first partition board and the second partition board are respectively provided with a first ventilation opening and a second ventilation opening. The first air vent and the second air vent are arranged alternately.

Preferably, both side walls of the coil are provided with heat exchange fins, one end of the heat exchange fin extends to the inside of the coil, and the other end of the heat exchange fin extends to the outside of the heat exchange fin.

Preferably, two card slots are provided on the outer wall of the coolant tank, and the card slots correspond to the "U" frame one by one, and the inner contour of the card slot is larger than the outer contour of the "U" frame, "U" Both ends of the frame are fixedly connected to the outer wall of the cabinet body by bolts.

Preferably, fins are uniformly arranged on the side wall of the cooling liquid tank inside the cooling fan, and the fins and the cooling liquid tank are welded as an integral structure.

Compared with the prior art, the beneficial effects of the utility model are:

1. The low-voltage distribution cabinet for mining uses a "U"-shaped frame to fix the coolant tank through the groove on one side of the cabinet, and is fixedly connected to the coil inside the coolant tank. The hot air inside the cabinet is Under the action of the circulating fan, it is injected into the inside of the coil, and the hot air and the coolant inside the coolant tank realize heat exchange and cooling, and then re-inject into the inside of the cabinet to realize the flow and heat dissipation of the air inside the cabinet, ensuring the heat dissipation effect of the power distribution cabinet body. At the same time, avoid external dust from being introduced into the interior of the cabinet, prolonging the service life of electrical appliances;

2. The low-voltage power distribution cabinet for mining is equipped with a through hole at the bottom of the cabinet, so that the cooled cold air can be re-injected into the cabinet through the through hole, and the hot air will float up and be discharged through the suction port under the action of the circulating fan. Realize the overall heat dissipation inside the cabinet, and because of the first vent and the second vent arranged alternately on the first partition and the second partition, the residence time of cold air in the cabinet is increased to ensure the overall heat radiation;

3. The low-voltage power distribution cabinet for mining uses heat exchange to achieve heat dissipation. There is no need to open holes on the side of the cabinet to ensure the integrity of the cabinet and avoid moisture and water ingress during rainy seasons, and the sun visor installed on the top of the cabinet , while effectively shielding the sun and increasing the internal temperature of the cabinet, it can prevent rainwater from penetrating into the cabinet and prolong the service life of the cabinet.

Description of drawings

Fig. 1 is a schematic diagram of the internal structure of the utility model;

Fig. 2 is the utility model side view structure diagram;

Fig. 3 is a schematic diagram of the internal structure of the coolant tank of the present invention;

Fig. 4 is a side view structural schematic diagram of the utility model coolant tank;

Fig. 5 is a schematic diagram of a cross-sectional structure of a coiled pipe of the present invention.

In the figure: 1, base; 101, cavity; 2, return air cover; 3, sealed cabinet door; 4, support; 5, suction duct; 6, sun visor; 7, suction cover; 701, circulation fan; 8. Cabinet body; 801, through hole; 802, suction port; 803, first partition; 8031, first vent; 804, electrical chamber; 805, second partition; 8051, second vent; 806 , groove; 9, controller; 10, coolant tank; 1001, fin; 1002, coil; 1003, heat exchanger; 11, cooling fan; 12, "U" frame; 13, return air duct.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-5, the utility model provides a technical solution: a low-voltage power distribution cabinet for mining, including a base 1, a cabinet body 8 and a coolant tank 10, a cavity 101 is opened in the center of the top of the base 1, the base 1 is equipped with a cabinet body 8, the bottom of the cabinet body 8 is uniformly provided with through holes 801, and the through holes 801 communicate with the cavity 101, and the interior of the cabinet body 8 is evenly spaced through the first partition board 803 and the second partition board 805. An electrical chamber 804 is provided;

The first partition 803 and the second partition 805 are fixed on the inner side wall of the cabinet body 8 by bolts, and the first partition 803 and the second partition 805 are respectively provided with a first vent 8031 and a second vent 8051 , the first vent 8031 and the second vent 8051 are arranged alternately, and the first vent 8031 and the second vent 8051 arranged in a staggered manner can increase the residence time of cold air inside the cabinet body 8 and ensure the overall heat dissipation of the power distribution cabinet Effect;

One side of the cabinet body 8 is hinged with a sealed cabinet door 3, and the middle of the other side of the cabinet body 8 is provided with a groove 806, and the interior of the groove 806 is fixed with a coolant tank 10 through a "U"-shaped frame 12;

Two card slots are arranged on the outer wall of the coolant tank 10, and the card slots correspond to the "U" frame 12 one by one, and the inner contour of the card slot is larger than the outer contour of the "U" frame 12, and the "U" frame Both ends of 12 are fixedly connected to the outer wall of the cabinet body 8 by bolts, so that the coolant tank 10 can be fixed on the outer wall of the cabinet body 8 through the "U" frame 12;

And between the two "U"-shaped frames 12 on the outside of the coolant tank 10, a heat dissipation fan 11 is installed through bolts, and the heat dissipation fan 11 is electrically connected to the controller 9 installed on the top of one side of the sealed cabinet door 3 through wires. The model can be FHR-211;

Fins 1001 are evenly arranged on the side wall of the cooling liquid tank 10 inside the cooling fan 11, and the fins 1001 and the cooling liquid tank 10 are welded in one structure, which increases the structural strength of the cooling liquid tank 10 while ensuring the heat exchange effect of the cooling liquid;

The top of cabinet body 8 is fixedly supported with sun visor 6 by support 4, and the center of cabinet body 8 top below sun visor 6 is provided with suction port 802, and the top of cabinet body 8 outside suction port 802 is equipped with suction cover 7, suction A circulation fan 701 is installed on the inner side of the air cover 7, and the circulation fan 701 is electrically connected to the controller 9 through wires. The output end of the air suction cover 7 is fixedly connected with a suction pipe 5, and the output end of the suction pipe 5 extends to the coolant tank The inside of 10 is fixedly connected with coil pipe 1002;

Both sides of the coil 1002 are provided with heat exchange fins 1003, one end of the heat exchange fin 1003 extends to the inside of the coil 1002, and the other end of the heat exchange fin 1003 extends to the outside of the heat exchange fin 1003, the hot air passes through The coil 1002 and the heat exchange fins 1003 exchange heat with the coolant inside the coolant tank 10 and discharge it into cold air;

The output end of the coil pipe 1002 extends to the outside of the coolant tank 10 and is fixedly connected with the return air pipe 13 , the output end of the return air pipe 13 extends to the inside of the cavity 101 and is fixedly connected with the return air cover 2 , the return air cover 2 It is fixed on the bottom of the cabinet body 8 outside the through hole 801 by bolts.

Working principle: when in use, the sun visor 6 on the top of the cabinet body 8 can block the sunlight and increase the internal temperature of the cabinet body 8 in sunny days, and at the same time prevent rainwater from penetrating into the interior of the cabinet body 8 in rainy days. During the use of the power distribution cabinet, the controller 9 Control the circulation fan 701 to start, absorb the hot air inside the cabinet 8 through the air suction port 802, and transport it to the inside of the coil 1002 through the suction pipe 5, and the hot air passes through the coil 1002 and the heat exchange fin 1003 and the inside of the coolant tank 10 The cooling liquid undergoes heat exchange and becomes cold air to be discharged, and is injected into the interior of the cabinet body 8 through the through hole 801 at the bottom of the cabinet body 8 through the return air pipe 13 and the return air cover 2, so as to realize the flow and heat dissipation of the air inside the cabinet body 8, and cool the air. While the cooling liquid in the liquid tank 10 is exchanging heat, the controller 9 controls the cooling fan 11 to start, and the cooling liquid in the cooling liquid tank 10 is exchanged for heat through the fins 1001, so as to prevent the temperature of the cooling liquid inside the cooling liquid tank 10 from rising and affecting The cooling effect inside the cabinet body 8.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (5)

1. The utility model provides a low-voltage distribution cabinet for mining, includes base (1), cabinet body (8) and coolant liquid case (10), its characterized in that: the center of the top of the base (1) is provided with a cavity (101), the top of the base (1) is provided with a cabinet body (8), the bottom of the cabinet body (8) is uniformly provided with through holes (801), the through holes (801) are communicated with the cavity (101), the interior of the cabinet body (8) is uniformly provided with an electric appliance chamber (804) through a first partition plate (803) and a second partition plate (805), one side of the cabinet body (8) is hinged with a sealed cabinet door (3), the middle of the other side of the cabinet body (8) is provided with a groove (806), the interior of the groove (806) is fixed with a cooling liquid box (10) through a U-shaped frame (12), a cooling fan (11) is arranged between 2U-shaped frames (12) outside the cooling liquid box (10) through bolts, and the cooling fan (11) is electrically connected with a controller (9) arranged at the top of one side of the sealed cabinet, the top of the cabinet body (8) is fixedly supported with a sun shield (6) through a bracket (4), the center of the top of the cabinet body (8) below the sun shield (6) is provided with an air suction opening (802), and the top of the cabinet body (8) at the outer side of the air suction opening (802) is provided with an air suction cover (7), the inner side of the air suction cover (7) is provided with a circulating fan (701), the circulating fan (701) is electrically connected with a controller (9) through a lead, the output fixedly connected with aspiration channel (5) of aspiration channel (7), the output of aspiration channel (5) extends to the inside and fixedly connected with coil pipe (1002) of coolant liquid case (10), the output of coil pipe (1002) extends to the outside and fixedly connected with return air hose (13) of coolant liquid case (10), the output of return air hose (13) extends to inside and fixedly connected with return air cover (2) of cavity (101), return air cover (2) are fixed in the cabinet body (8) bottom in the through-hole (801) outside through the bolt.

2. The low-voltage distribution cabinet for mining of claim 1, characterized in that: the first partition plate (803) and the second partition plate (805) are fixed on the inner side wall of the cabinet body (8) through bolts, a first ventilation opening (8031) and a second ventilation opening (8051) are formed in the first partition plate (803) and the second partition plate (805), and the first ventilation opening (8031) and the second ventilation opening (8051) are arranged in a staggered mode.

3. The low-voltage distribution cabinet for mining of claim 1, characterized in that: the two side walls of the coil pipe (1002) are provided with heat exchange fins (1003), one end of each heat exchange fin (1003) extends to the inner side of the coil pipe (1002), and the other end of each heat exchange fin (1003) extends to the outer side of the corresponding heat exchange fin (1003).

4. The low-voltage distribution cabinet for mining of claim 1, characterized in that: the outer side wall of the cooling liquid box (10) is provided with 2 clamping grooves, the clamping grooves correspond to the U-shaped frames (12) one by one, the inner contour of each clamping groove is larger than the outer contour of each U-shaped frame (12), and two ends of each U-shaped frame (12) are fixedly connected with the outer side wall of the cabinet body (8) through bolts.

5. The low-voltage distribution cabinet for mining of claim 1, characterized in that: fins (1001) are uniformly arranged on the side wall of the cooling liquid tank (10) on the inner side of the cooling fan (11), and the fins (1001) and the cooling liquid tank (10) are of a welded integral structure.