Power cabinet for power distribution network transformer substation
Technical Field
The application belongs to the technical field of power cabinets, and particularly relates to a power cabinet for a power distribution network transformer substation.
Background
The power cabinet is an important device of the power distribution system, and is mainly used for distributing the electric energy of a certain circuit in the upper-level power distribution device to nearby loads and providing monitoring and protection for the loads; the existing power cabinet can generate heat after long-time use, so that the temperature inside the cabinet body is increased, the operation safety and stability of the power cabinet are easily affected when heat is not dissipated in time, and the existing power cabinet mainly has the following problems when heat dissipation treatment is carried out: firstly, external air is required to be introduced for heat dissipation through a fan, so that external dust can enter the interior of the cabinet body, the dust can cover the surfaces of electrical components in the interior of the cabinet body under the action of an electrical static effect, and the temperature in the interior of the cabinet body is further increased for a while, so that the normal operation of the power cabinet is affected; secondly, introduce the cold wind of outside into the electric power cabinet through the fan and dispel the heat to the electric power device, the flow path of cold wind in the electric power cabinet is the disorder, can not dispel the heat in order, causes the radiating effect in partial region not ideal, and the heat in the cabinet can not obtain effectual giving off.
Therefore, in order to solve the above problems, it is necessary to develop a power cabinet for a power distribution network substation.
Disclosure of Invention
The application aims to overcome the defects of the prior art, and provides a power cabinet for a power distribution network transformer substation, which is used for preventing dust from entering the interior of the cabinet body in the heat dissipation process, guiding the heat dissipation airflow in the cabinet body and improving the heat dissipation effect.
The purpose of the application is realized in the following way: the utility model provides a distribution network is electric power cabinet for transformer substation, includes the cabinet body, cabinet body top is provided with the ventilation chamber, the ventilation chamber is including the air-out chamber that is located the centre and the air inlet chamber that is located both sides, cabinet body inside both sides are provided with the baffle respectively, the baffle with be formed with the wind channel chamber between the cabinet body lateral wall, wind channel chamber top intercommunication air inlet chamber, be provided with ventilation pipe intercommunication cabinet body inside and wind channel chamber on the baffle, be provided with vertical guide rail on the cabinet body inside back lateral wall, can dismantle fixedly on the guide rail and be provided with at least a set of wind-guiding structure, the wind-guiding structure is located the air-out direction of ventilation pipe; the air inlet cavity is communicated with the outside through an air inlet arranged on the top wall, a cooling fan is arranged in the air inlet cavity, and the cooling fan is connected with a driving motor; the bottom of the air outlet cavity is communicated with the inner part of the cabinet body, a one-way ventilation structure is arranged in the air outlet cavity, the one-way ventilation structure comprises light protection plates which are hinged to two side walls of the air outlet cavity, the bottom ends of the two light protection plates are fixedly connected with the side walls of the air outlet cavity through light reset springs respectively, and an air outlet is formed in the top wall of the air outlet cavity; the air guide structure comprises a mounting plate which is detachably arranged on a guide rail, a horizontal supporting plate which is arranged in the longitudinal direction around the inside of the cabinet body is fixedly arranged on the mounting plate, L-shaped air guide plates are hinged to two sides of the bottom end of the supporting plate, the side faces, close to the mounting plate, of the L-shaped air guide plates are fixedly connected with the bottom end of the supporting plate through extension springs, two rotating shafts are further arranged between the L-shaped air guide plates, short pushing plates and long pushing plates are further arranged on the side walls of the rotating shafts at intervals, and the short pushing plates and the long pushing plates are connected with the side walls of the L-shaped air guide plates in a butt mode after rotating to corresponding positions along with the rotating shafts.
Further, a first filter plate is arranged in the air inlet cavity, and the cooling fan is arranged below the first filter plate; and a second filter plate is arranged at the communication part of the air inlet cavity and the air channel cavity.
Further, the filter pore diameters of the first filter plate and the second filter plate are sequentially reduced.
Further, the ventilation pipe is inclined by 15-75 degrees towards the lower direction in the cabinet body.
Further, the ventilation pipes and the L-shaped air deflectors are arranged in one-to-one correspondence.
Further, the junction of vertical portion and horizontal portion of L type aviation baffle is the arc structure setting, still be provided with the wind-guiding piece that the cross-section is triangle-shaped on vertical portion and the horizontal portion, the inclined plane of wind-guiding piece inclines towards the arc structure direction, the inclined plane of wind-guiding piece sets up to the arcwall face structure.
Further, a rotating motor is arranged on the mounting plate, and an output shaft of the rotating motor is fixedly connected with a rotating shaft to drive the rotating shaft to rotate.
Further, the cabinet body is internally provided with a temperature monitoring device.
Due to the adoption of the technical scheme, the application has the beneficial effects that:
(1) The filter plates are arranged in the air inlet cavity and the communication part of the air inlet cavity and the air channel cavity, and meanwhile, the unidirectional ventilation structure is arranged in the air outlet cavity, so that dust can be effectively prevented from entering the cabinet body through the air inlet cavity and the air outlet cavity by heat dissipation airflow, the temperature rise in the cabinet caused by dust accumulation is effectively avoided, and the heat dissipation effect is effectively ensured;
(2) Through being provided with the wind-guiding structure in the cabinet body, can guide the radiating air flow that enters into the cabinet body inside through the ventilation pipe, make it distribute in the cabinet body inside better and improve the radiating effect, perhaps through the aviation baffle position in the change wind-guiding structure, and then change the direction of radiating air flow, make radiating air flow direction air outlet more fast, accelerate the circulation speed of the inside air of cabinet, further improve the radiating effect.
Drawings
Fig. 1 is a schematic structural view of the present application.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is an enlarged schematic view of a portion B in fig. 1.
Fig. 4 is an enlarged schematic view of the portion C in fig. 1.
In the figure: 1. the cabinet body 2, the ventilation cavity 3, the partition board 4, the air duct cavity 5, the ventilation pipe 6, the guide rail 7 and the air guide structure;
21. the air outlet cavity 211 comprises a one-way ventilation structure 211a, a light protection plate 211b, a light reset spring 212 and an air outlet;
22. the air inlet cavity 221, the air inlet 222, the cooling fan 223, the driving motor 224, the first filter plate 225 and the second filter plate;
701. mounting plate 702, supporting plate 703, L-shaped air deflector 704, extension spring 705, rotating shaft 706, short push plate 707, long push plate 708, and rotating motor;
703a, a vertical portion 703b, a horizontal portion 703c, an arc-shaped structure 703d, and an air guide block.
Description of the embodiments
The technical scheme of the application is further specifically described below through examples and with reference to the accompanying drawings.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a power cabinet for a power distribution network substation is provided, wherein a dotted line in the drawing is a path line of heat dissipation airflow, the power cabinet comprises a cabinet body 1, a ventilation cavity 2 is arranged at the top of the cabinet body 1, the ventilation cavity 2 comprises an air outlet cavity 21 positioned in the middle and an air inlet cavity 22 positioned at two sides, partition plates 3 are respectively arranged at two sides inside the cabinet body 1, an air channel cavity 4 is formed between the partition plates 3 and the side walls of the cabinet body 1, the top of the air channel cavity 4 is communicated with the air inlet cavity 22, a ventilation pipe 5 is arranged on the partition plates 3 and is communicated with the inside of the cabinet body 1 and the air channel cavity 4, a vertical guide rail 6 is arranged on the rear side wall inside the cabinet body 1, and at least one group of air guide structures 7 are detachably and fixedly arranged on the guide rail 6, and the air guide structures 7 are positioned in the air outlet direction of the ventilation pipe 5; that is, when heat dissipation is performed, the heat dissipation air flow enters the air inlet cavity 22 and then enters the air duct cavity 4, and is blown into the cabinet body 1 through the ventilation pipe 5, the air outlet of the ventilation pipe 5 faces the air guide structure 7, and is better dispersed into the cabinet body 1 or is more rapidly dispersed into the air outlet cavity 21 through the guide of the air guide structure 7, and finally is discharged through the air outlet cavity 21, so that the heat dissipation cycle is completed.
The air inlet cavity 22 is communicated with the outside through an air inlet 221 arranged on the top wall, a cooling fan 222 is arranged in the air inlet cavity 22, the cooling fan 222 is connected with a driving motor 223, and the cooling fan 222 is driven to rotate by the driving motor 223, so that external cold air flow is introduced from the air inlet 221 and blown to the air duct cavity 4; meanwhile, a first filter plate 224 is disposed in the air inlet chamber 22, and the cooling fan 222 is disposed below the first filter plate 224; the second filter plate 225 is arranged at the communication position of the air inlet cavity 22 and the air channel cavity 4, preferably, the filter apertures of the first filter plate 224 and the second filter plate 225 are sequentially reduced, and the external cold air flow introduced by the cooling fan 222 can be effectively filtered through the arrangement of the first filter plate 224 and the second filter plate 225, so that external dust is prevented from entering the cabinet body 1, and the heat dissipation effect is prevented from being influenced.
The bottom of the air outlet cavity 21 is communicated with the interior of the cabinet body 1, a one-way ventilation structure 211 is arranged in the air outlet cavity 21, the one-way ventilation structure 211 comprises light protection plates 211a which are hinged to two side walls of the air outlet cavity 21, the bottom ends of the two light protection plates 211a are fixedly connected with the side walls of the air outlet cavity 21 through light reset springs 211b respectively, and an air outlet 212 is arranged on the top wall of the air outlet cavity 21; the radiating airflow in the cabinet body 1 flows from the interior of the cabinet body 1 to the air outlet cavity 21 at the top end of the cabinet body 1, the light protection plates 211a are pushed to the upper side of the air outlet cavity 21, namely the direction of the air outlet 212 under the pushing of the airflow, so that the two light protection plates 211a are opened, the light reset springs 211b are stretched at the moment, the radiating airflow flows out through the openings opened by the two light protection plates 211a and is discharged through the air outlet 212, the radiating circulation is completed, and when the pushing of the radiating airflow is not carried out, the light protection plates 211a are closed under the pulling of the light reset springs 211b, and then the closing of the air outlet cavity 21 is kept, so that dust can be effectively prevented from entering the interior of the cabinet body 1 from the air outlet 212 through the air outlet cavity 21.
The air guiding structure 7 comprises an installing plate 701 detachably arranged on the guide rail 6, a horizontal supporting plate 702 arranged in the front-rear depth direction inside the cabinet body 1 is fixedly arranged on the installing plate 701, two sides of the bottom end of the supporting plate 702 are hinged with L-shaped air guiding plates 703, the side face, close to the installing plate 701, of each L-shaped air guiding plate 703 is fixedly connected with the bottom end of the supporting plate 702 through a tension spring 704, a rotating shaft 705 is further arranged between the two L-shaped air guiding plates 703, a short pushing plate 706 and a long pushing plate 707 are further arranged on the side wall of the rotating shaft 705 at intervals, and the short pushing plate 706 and the long pushing plate 707 are respectively connected with the side wall of each L-shaped air guiding plate 703 in an abutting mode after rotating to the corresponding positions along with the rotating shaft 705; a rotating motor 708 is arranged on the mounting plate 701, and an output shaft of the rotating motor 708 is fixedly connected with a rotating shaft 705 to drive the rotating shaft 705 to rotate, so that the short push plate 706 and the long push plate 707 are abutted against the L-shaped air deflector 703, and the flow guiding direction of the L-shaped air deflector 703 is changed; specifically, when the short push plate 706 abuts against the L-shaped air deflector 703, the extension spring 704 is in a natural state, the vertical portion 703a and the horizontal portion 703b of the L-shaped air deflector 703 are respectively in a vertical state and a horizontal state, at this time, the heat dissipation air flow blown onto the L-shaped air deflector 703 can uniformly escape into the cabinet 1 through reflection of the vertical portion 703a, uniform heat dissipation is achieved, when the long push plate 707 abuts against the L-shaped air deflector 703, the L-shaped air deflector 703 rotates in directions above two sides of the cabinet 1 under the pushing of the long push plate 707, the top end of the L-shaped air deflector 707 rotates in directions towards the air outlet cavity 21 at the middle position of the top end of the cabinet 1 towards the middle direction inside the cabinet 1, at this time, the extension spring 704 is stretched, the air flow blown onto the L-shaped air deflector 703 moves in directions towards the air outlet cavity 21 more rapidly under guidance, and the circulation flow of air in the cabinet 1 is accelerated, and rapid heat dissipation is achieved.
In specific implementation, it is preferable that the ventilation pipe 5 is inclined by 15-75 degrees towards the lower direction of the inner portion of the cabinet body 1, that is, the L-shaped air deflector 703 in the air guiding structure 7 is also located in the direction of 15-75 degrees of the inner portion of the cabinet body 1, that is, the cooling air flow discharged from the ventilation pipe 5 can be directly blown onto the L-shaped air deflector 703, and is reflected and dissipated to two sides of the inner portion of the cabinet body 1 by the vertical portion 703a of the L-shaped air deflector 703, so that the cooling air flow is better distributed in the inner space of the cabinet body 1, the cooling dead angle is eliminated, or the cooling air deflector 703 moves towards the air outlet cavity more quickly, and the circulation speed is increased.
Further, in order to improve the reflection effect of the L-shaped air deflector 703, the connection part between the vertical portion 703a and the horizontal portion 703b of the L-shaped air deflector 703 is provided with an arc-shaped structure 703c, the vertical portion 703a and the horizontal portion 703b are further provided with an air guiding block 703d with a triangular cross section, the inclined surface of the air guiding block 703d is inclined towards the direction of the arc-shaped structure 703c, and the inclined surface of the air guiding block 703d is provided with an arc-shaped surface structure.
The cabinet body 1 is further internally provided with a control device and a temperature monitoring device, the temperature monitoring device can be realized by adopting the prior art such as a temperature sensor, the control device can be electrically connected with the driving motor 223, the rotating motor 708 and the temperature monitoring device by adopting a power line and other modes, the control device, the driving motor 223, the rotating motor 708 and the temperature monitoring device and specific circuit connection structures thereof belong to the prior art, and the control device, the driving motor 223, the rotating motor 708 and the temperature monitoring device can be realized by various implementation modes, and no other special requirements are made in the application, and only the control device can realize the functions in the application, so that the control device is not particularly limited.
When the temperature monitoring device monitors that the temperature in the cabinet body 1 is higher, the rotating motor 708 can be started to drive the cooling fan 222 to rotate, cooling air flows enter the cabinet body 1 from the air inlet 221 sequentially through the air inlet cavity 22, the air duct cavity 4 and the ventilation pipe 5 and are guided by the air guide structure 7 to be uniformly dissipated into the cabinet body 1, so that a cooling dead angle is eliminated, or when the temperature in the cabinet body 1 is higher, the rotating motor 708 in the air guide structure 7 is started to drive the rotating shaft 705 to rotate, the rotating motor 708 is converted to the long pushing plate 707 to abut against the L-shaped air guide plate 703 and push the L-shaped air guide plate 703 up, the guiding direction of the L-shaped air guide plate 703 is changed, the air flow is enabled to flow in the direction of the air outlet cavity 21 quickly, the air circulation in the cabinet body 1 is accelerated, the quick cooling is realized, after the temperature in the cabinet 1 is reduced, the short pushing plate 706 abuts against the L-shaped air guide plate 703, the L-shaped air guide plate 703 is reset, the uniform cooling is carried out, and the cooling effect is better.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present application, and not for limiting the same, and although the present application has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the specific embodiments of the present application without departing from the spirit and scope of the present application, and any modifications and equivalents are intended to be encompassed in the scope of the claims of the present application.