CN211859356U

CN211859356U - Low-voltage draw-out type switch cabinet

Info

Publication number: CN211859356U
Application number: CN202020572286.1U
Authority: CN
Inventors: 廖雨; 罗红梅; 侯雪
Original assignee: Beijing Qiluyb Switchgear Co ltd
Current assignee: Beijing Qiluyb Switchgear Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-11-03
Anticipated expiration: 2030-04-16

Abstract

The utility model relates to a low-voltage draw-out switch cabinet, belonging to the technical field of power supply equipment, comprising a cabinet body, a cabinet door hinged on the cabinet body and a base positioned below the cabinet body, wherein a plurality of supporting plates are arranged in the cabinet body at intervals in the vertical direction, and a distance is reserved between the supporting plates and a side plate of the cabinet body, which is far away from the cabinet door; a placing cavity is formed between the adjacent supporting plates, and a drawer hole which is opposite to and matched with the placing cavity is formed in the cabinet door; a drawer is placed in the placing cavity, and a distance is reserved between the drawer and a side plate of the cabinet body, which is far away from the cabinet door; an airflow channel is formed between the drawer and the side plate of the cabinet body far away from the cabinet door; an air inlet fan and an exhaust fan are arranged at the positions of the cabinet body opposite to the top end and the bottom end of the airflow channel; a mounting hole is formed in the side plate of the drawer opposite to the airflow channel; the side plate of the base is provided with a communicating hole. The utility model discloses utilize air inlet fan, air discharge fan and airflow channel and mounting hole at the internal heat dissipation channel that forms of cabinet, have and accelerate radiating effect.

Description

Low-voltage draw-out type switch cabinet

Technical Field

The utility model belongs to the technical field of power supply unit's technique and specifically relates to a low pressure pull-out type cubical switchboard is related to.

Background

The draw-out switch cabinet consists of a fixed cabinet body and a movable device part provided with main electrical elements such as a switch and the like, wherein the movable device part can be drawn out, and drawers of the same type and specification can be reliably exchanged, so that the draw-out switch cabinet is convenient to overhaul and maintain, and the internal space of the switch cabinet can be fully utilized. However, because the cabinet body has more internal electrical elements and loops and more heat dissipation, the heat dissipation requirement on the draw-out switch cabinet is higher.

The utility model discloses a chinese utility model patent that grant bulletin number is CN209860383U discloses a pull-out type cubical switchboard cabinet body, including bottom plate and cabinet top cap, the top fixed mounting of bottom plate has the cabinet body, and the air vent that one end runs through and extend to cabinet top cap bottom is seted up at the top of cabinet top cap, and the inside of air vent is inlayed and is equipped with the isolation yarn, and the interior diapire fixed mounting of the cabinet body has the fan, and the air outlet intercommunication of fan has one end to run through and extend to the outlet duct on cabinet body right side. This prior art sets up the fan and links to each other with the outside outlet duct of intercommunication through setting up the air vent and lower part to guarantee to make cabinet body inside can dispel the heat under the state of opening the fan.

The above prior art solutions have the following drawbacks: because the drawer is arranged in the drawer type cabinet body in a multilayer mode, various types of electrical elements and related circuits are placed in the drawer, airflow is easily blocked in the downward flowing process, and airflow channels are not smooth.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a low pressure pull-out type cubical switchboard, the utility model discloses a set up airflow channel and set up the mounting hole with airflow channel intercommunication on the drawer at cabinet internal portion to set up air inlet fan and air discharge fan respectively at airflow channel's both ends, can accelerate scattering and disappearing of the heat that produces in the drawer electrical components use, thereby make electrical components can normally work.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a low-voltage draw-out type switch cabinet comprises a cabinet body and a cabinet door hinged on the cabinet body; a base fixedly connected with the cabinet body is arranged below the cabinet body, the lower end of the base is open, a plurality of supporting plates are arranged in the cabinet body at intervals in the vertical direction, and a distance is reserved between each supporting plate and a side plate of the cabinet body, which is far away from the cabinet door; a placing cavity is formed between the adjacent supporting plates, and a drawer hole matched with the placing cavity is formed in the position, opposite to the placing cavity, of the cabinet door; a drawer is placed in the placing cavity and penetrates out of the drawer hole, and a distance is reserved between the drawer and a side plate of the cabinet body, which is far away from the cabinet door; an airflow channel is formed between the drawer and the side plate of the cabinet body far away from the cabinet door; an air inlet fan is arranged at the position, opposite to the airflow channel, of the bottom plate of the cabinet body; an exhaust fan is arranged at the position, opposite to the top end of the airflow channel, of the side plate, adjacent to the cabinet door, of the cabinet body; a mounting hole is formed in the side plate of the drawer opposite to the airflow channel; the side plate of the base is provided with a communicating hole.

Through adopting above-mentioned technical scheme, all placing the drawer in place the back, start the air inlet fan and the air discharge fan at airflow channel both ends, form the air current that flows in airflow channel, the air current partly takes away the heat in getting into the drawer through the mounting hole at ascending in-process, and another part makes the air that has the heat can discharge through the air discharge fan fast to accelerate the heat dissipation, improved the radiating efficiency of cubical switchboard.

The utility model discloses further set up to: the supporting plate is provided with a plurality of first vent holes penetrating through the plate surface; a plurality of second vent holes penetrating through the plate surface are formed in the bottom plate of the drawer; the first vent hole is vertically opposite to the second vent hole.

Through adopting above-mentioned technical scheme, help the circulation of air between the drawer, avoid the heat to gather in one deck.

The utility model discloses further set up to: and a heat dissipation fan is arranged in the mounting hole.

Through adopting above-mentioned technical scheme for the heat that the electrical components produced in the drawer transmits in to the air current channel.

The utility model discloses further set up to: the exhaust fan is arranged on the side plate of the cabinet body adjacent to the cabinet door.

Through adopting above-mentioned technical scheme, increase displacement makes the air current in the air current passageway can flow stably and fast, improves the radiating efficiency.

The utility model discloses further set up to: the cabinet body is located and has all seted up a plurality of holes on the adjacent curb plate of cabinet door, set up a plurality of through-holes on the curb plate of drawer.

Through adopting above-mentioned technical scheme, increase the air input of the internal portion of cabinet, make the internal portion of cabinet keep pressure stable.

The utility model discloses further set up to: the inner wall of the cabinet body at the strip hole is provided with a gauze.

Through adopting above-mentioned technical scheme, play dustproof effect, avoid debris such as outside dust to get into the cabinet body and lead to electrical components radiating effect variation.

The utility model discloses further set up to: protective covers positioned on the outer wall of the cabinet body are arranged at the positions of the air inlet fan and the exhaust fan; and a filter screen is arranged between the air inlet fan and the protective cover.

Through adopting above-mentioned technical scheme, can play the guard action to air inlet fan and air discharge fan to can avoid the dust to get into cabinet internal portion through air inlet fan.

The utility model discloses further set up to: the bottom end of the base is open; and a lifting mechanism is arranged in the base.

Through adopting above-mentioned technical scheme, can go up and down the cabinet body of cubical switchboard, avoid the emergence that the water got into the cabinet body and leads to the electric leakage accident under the condition that ground produced ponding.

The utility model discloses further set up to: the lifting mechanism comprises storage cylinders which are arranged at four corners of a top plate of the base and have the length smaller than the height of a side plate of the base, hydraulic cylinders which are vertically fixed on the top plate are arranged in the storage cylinders, and piston rods of the hydraulic cylinders are downward; the lower end of the piston rod is provided with a connecting block which is connected with the storage barrel in a sliding manner.

Through adopting above-mentioned technical scheme, start the pneumatic cylinder simultaneously, the connecting block downstream under the drive effect of pneumatic cylinder to can be with cabinet body jack-up.

The utility model discloses further set up to: the bottom end of the connecting block is provided with a travelling wheel; the hydraulic cylinder can take the travelling wheels into the base.

Through adopting above-mentioned technical scheme, make things convenient for the removal of the cabinet body, utilize elevating system to promote the removal that the cabinet body can realize the cabinet body after with cabinet body jack-up, it is convenient laborsaving.

To sum up, the utility model discloses a beneficial technological effect does:

1. the cabinet body is internally provided with the airflow channel, the drawer is provided with the mounting hole communicated with the airflow channel, and the two ends of the airflow channel are respectively provided with the air inlet fan and the exhaust fan, so that the dissipation of heat generated in the use process of electrical elements in the drawer can be accelerated, and the electrical elements can normally work;

2. the first vent hole and the second vent hole are respectively formed in the supporting plate and the bottom plate of the drawer, so that air inside the cabinet body can be conveniently circulated, and heat accumulation is avoided;

3. through set up elevating system and walking wheel in cabinet body bottom, ponding gets into the internal portion of cabinet and causes the emergence of electrical components damage and electric leakage accident when avoiding ground to produce ponding.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

fig. 4 is a schematic cross-sectional view in another direction of the present invention.

In the figure, 1, a cabinet body; 11. a cabinet door; 12. a support plate; 121. a first vent hole; 122. a placement chamber; 13. a drawer hole; 14. a drawer; 141. a second vent hole; 15. an air flow channel; 16. a bar hole; 161. a dust guard; 17. a screen; 2. a base; 21. a communicating hole; 3. an air-cooled assembly; 31. an air inlet; 32. an air inlet fan; 33. an exhaust hole; 34. an exhaust fan; 35. mounting holes; 36. a heat dissipation fan; 4. a lifting mechanism; 41. a storage cylinder; 411. a limiting table; 42. a hydraulic cylinder; 43. a traveling wheel; 44. connecting blocks; 45. a limiting block; 5. a protective cover; 6. and (4) a filter screen.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the utility model discloses a low-voltage draw-out type switch cabinet, including the cabinet body 1 that is the cube form of vertical setting and the cabinet door 11 of handing-over on the cabinet body 1. A base 2 fixedly connected with the cabinet body 1 is arranged below the cabinet body 1. The lower part of the base 2 is opened, and a plurality of strip-shaped communicating holes 21 which are arranged along the length direction of the cabinet body at intervals are arranged on the side plates which are vertically opposite to each other of the base 2 and the cabinet door 11.

Referring to fig. 2, a plurality of horizontal support plates 12 are arranged in the cabinet 1 at equal intervals in the vertical direction. The supporting plate 12 is fixedly connected with two side plates opposite to the length direction of the cabinet body 1. The support plate 12 is spaced from the side plate of the cabinet body 1 facing the cabinet door 11. The supporting plate 12 is vertically provided with a plurality of first vent holes 121 penetrating through the plate surface. A placement chamber 122 is formed between the opposing support plates 12.

A drawer hole 13 matched with the placing cavity 122 is formed in the position, opposite to the placing cavity 122, of the cabinet door 11. The placing cavity 122 is internally provided with a drawer 14 matched with the placing cavity 122, and the drawer 14 penetrates through the cabinet door 11 from the drawer hole 13.

A plurality of second ventilation holes 141 penetrating the panel are vertically arranged on the bottom plate of the drawer 14. When the drawer 14 is completely placed in the placing cavity 122, the first ventilation hole 121 is vertically opposite to the second ventilation hole 141. A plurality of through holes are arranged on the side plate of the drawer 14.

The end faces of the supporting plate 12 and the drawer 14 far away from one end of the cabinet door 11 are located on the same vertical plane. An air flow channel 15 in the vertical direction is formed between the side plate of the cabinet body 1 far away from the cabinet door 11 and the drawer 14 and the supporting plate 12.

The top and bottom ends of the airflow channel 15 are provided with air cooling components 3. An air inlet 31 penetrating through the bottom plate is arranged at the position of the bottom plate of the cabinet body 1 opposite to the airflow channel 15. The two side plates opposite to each other in the length direction of the cabinet body 1 are respectively provided with an exhaust hole 33 penetrating through the side plates at the position opposite to the top end of the airflow channel 15. The air-cooling unit 3 includes an intake fan 32 disposed in the intake hole 31 and coaxial with the intake hole 31 and an exhaust fan 34 disposed in the exhaust hole 33 and coaxial with the exhaust hole 33. The air inlet fan 32 and the air outlet fan 34 are both fixedly connected with the cabinet 1.

The central position of the plate surface of one end of the drawer 14 far away from the cabinet door 11 is horizontally provided with a mounting hole 35 penetrating through the plate surface. A heat dissipation fan 36 is provided in the mounting hole 35. The heat dissipation fan 36 is fixedly connected with the drawer 14. The heat dissipation fan 36 is made of stainless steel.

Most of the heat generated from the electric components of the drawer 14 is discharged into the airflow path 15 by the heat dissipation fan 36. When the supply fan 32 and the discharge fan 34 provided at the bottom and the top of the air flow passage 15 are activated, an air flow is formed in the air flow passage 15. The heat discharged into the airflow channel 15 is discharged from the exhaust hole 33 by the airflow, so that the heat dissipation inside the cabinet 1 can be accelerated.

Referring to fig. 4, a protective cover 5 is fixedly disposed at the air inlet 31 outside the air inlet fan 32, and a protective cover 5 is fixedly disposed at the air outlet 33 outside the air outlet fan 34. The protection cover 5 is used to protect the intake fan 32 and the exhaust fan 34. A filter screen 6 is arranged between the protective cover 5 and the air inlet fan 32 at the air inlet 31. The filter screen 6 is used to prevent air from entering the airflow passage 15 and bringing in dust and other foreign matter.

The lower parts of two side plates opposite to each other in the length direction of the cabinet body 1 are provided with a plurality of holes 16. A dust guard plate 161 is fixedly arranged on the outer wall of the cabinet body 1 above the strip hole 16. A gauze 17 is fixedly arranged on the inner wall of the cabinet body 1 at the position of the strip hole 16. The bar holes 16 can supplement air into the drawer 14 of the cabinet 1, and facilitate air circulation in the drawer 14.

Referring to fig. 2 and 3, a lifting mechanism 4 for pushing the cabinet 1 to lift is arranged below the base 2. The lifting mechanism 4 comprises a square storage barrel 41 which is vertically arranged at four corners inside the base 2 and fixedly connected with a top plate of the base 2. The side wall of the storage cylinder 41 is fixedly connected with the side plate of the base 2. The length of the storage cylinder 41 is smaller than the height of the base 2.

The inner wall of the bottom end of the storage cylinder 41 is provided with a limit table 411 which extends inwards. A hydraulic cylinder 42 is vertically provided inside the storage tube 41. The cylinder body of the hydraulic cylinder 42 is fixed on the top plate of the base 2, and the piston rod of the hydraulic cylinder 42 is far away from the cylinder body and extends downwards. One end of the piston rod far away from the cylinder body is fixedly connected with a connecting block 44 which is matched with the limiting table 411 and is in sliding connection with the limiting table 411. And one end of the connecting block 44 far away from the piston rod is fixedly connected with a travelling wheel 43. The side wall of the connecting block 44 near one end of the piston rod is provided with a limiting block 45 extending outwards. The stopper 45 can prevent the connecting block 44 from coming off the storage cylinder 41.

And reinforcing plates fixedly connected with the top plate and the side plates of the base 2 are arranged on the lower surface of the top plate of the base 2 respectively. The reinforcing plate reinforces the top plate of the base 2 when the hydraulic cylinder 42 is used for lifting the travelling wheels 43.

When the switch cabinet needs to be moved, the hydraulic cylinder 42 is started at the same time, the hydraulic cylinder 42 drives the connecting block 44 to move in the direction away from the hydraulic cylinder 42, so that the traveling wheels 43 jack up the switch cabinet, and then the switch cabinet is pushed; the walking wheel 43 can also separate accumulated water from the switch cabinet under the condition that the accumulated water exists, so that the accumulated water is prevented from entering the switch cabinet to cause potential safety hazards.

The implementation principle of the embodiment is as follows: after the drawer 14 is closed, the air intake fan 32, the exhaust fan 34 and the heat dissipation fan 36 are started, heat generated by electrical components in the drawer 14 is timely exhausted into the airflow channel 15 through the heat dissipation fan 36, and the heat in the airflow channel 15 is driven in airflow formed by the air intake fan 32 and the exhaust fan 34 to be exhausted through the exhaust fan 34, so that the internal heat dissipation of the cabinet 1 is accelerated. Air can be supplemented in time through the strip holes 16 in the drawer 14 of the cabinet body 1, so that negative pressure is prevented from being formed in the drawer 14, and air circulation is not smooth.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A low-voltage draw-out type switch cabinet comprises a cabinet body (1) and a cabinet door (11) hinged on the cabinet body (1); the cabinet body (1) below is provided with base (2) with the cabinet body (1) fixed connection, base (2) lower extreme opening, its characterized in that: a plurality of supporting plates (12) are arranged in the cabinet body (1) at intervals in the vertical direction, and a distance is reserved between each supporting plate (12) and a side plate of the cabinet body (1) far away from the cabinet door (11); a placing cavity (122) is formed between the adjacent supporting plates (12), and a drawer hole (13) matched with the placing cavity (122) is formed in the position, opposite to the placing cavity (122), on the cabinet door (11); a drawer (14) is placed in the placing cavity (122), the drawer (14) penetrates out of the drawer hole (13), and a distance is reserved between the drawer (14) and a side plate, far away from the cabinet door (11), of the cabinet body (1); an airflow channel (15) is formed between the drawer (14), the supporting plate (12) and a side plate of the cabinet body (1) far away from the cabinet door (11); an air inlet fan (32) is arranged at the position, opposite to the airflow channel (15), of the bottom plate of the cabinet body (1); an exhaust fan (34) is arranged at the position, opposite to the top end of the airflow channel (15), of the side plate, adjacent to the cabinet body (1) and the cabinet door (11); a mounting hole (35) is formed in the side plate of the drawer (14) opposite to the airflow channel (15); the side plate of the base (2) is provided with a communicating hole (21).

2. The low voltage draw out switchgear of claim 1, wherein: the supporting plate (12) is provided with a plurality of first vent holes (121) penetrating through the plate surface; a bottom plate of the drawer (14) is provided with a plurality of second vent holes (141) penetrating through the plate surface; the first vent hole (121) is vertically opposite to the second vent hole (141).

3. The low voltage draw out switchgear of claim 2, wherein: and a heat dissipation fan (36) is arranged in the mounting hole (35).

4. The low voltage draw out switchgear of claim 1, wherein: the exhaust fan (34) is arranged on the side plate of the cabinet body (1) adjacent to the cabinet door (11).

5. The low voltage draw out switchgear of claim 1, wherein: a plurality of holes (16) are formed in the side plates of the cabinet body (1) adjacent to the cabinet door (11); the side plate of the drawer (14) is provided with a plurality of through holes.

6. The low voltage draw out switchgear of claim 5, wherein: the inner wall of the cabinet body (1) at the strip hole (16) is provided with a gauze (17).

7. The low voltage draw out switchgear of claim 1, wherein: the air inlet fan (32) and the exhaust fan (34) are respectively provided with a protective cover (5) positioned on the outer wall of the cabinet body (1); a filter screen (6) is arranged between the air inlet fan (32) and the protective cover (5).

8. The low voltage draw out switchgear of claim 1, wherein: the bottom end of the base (2) is open; and a lifting mechanism (4) is arranged in the base (2).

9. The low voltage draw out switchgear of claim 8, wherein: the lifting mechanism (4) comprises storage cylinders (41) which are arranged at four corners of a top plate of the base (2) and have lengths smaller than the height of side plates of the base (2), hydraulic cylinders (42) which are vertically fixed on the top plate are arranged in the storage cylinders (41), and piston rods of the hydraulic cylinders (42) are downward; the lower end of the piston rod is provided with a connecting block (44) which is connected with the storage barrel (41) in a sliding manner.

10. The low voltage draw out switchgear of claim 9, wherein: the bottom end of the connecting block (44) is provided with a travelling wheel (43); the hydraulic cylinder (42) can take the travelling wheels (43) into the base (2).