CN216016200U

CN216016200U - Explosion-proof safety isolation transformer control box

Info

Publication number: CN216016200U
Application number: CN202121238468.6U
Authority: CN
Inventors: 张家俊; 周育红; 薛力力
Original assignee: Xi'an Yongshang Electric Technology Co ltd
Current assignee: Xi'an Yongshang Electric Technology Co ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2022-03-11
Anticipated expiration: 2031-06-03

Abstract

The utility model provides an explosion-proof safety isolation transformer control box which comprises a control cabinet, wherein the control cabinet comprises a cabinet body, a loop bar assembly and a cabinet door, the loop bar assembly comprises an inner bar, an outer bar and a plurality of connecting bars, two ends of the inner bar penetrate through the outer bar and are fixedly connected with the cabinet body through the connecting bars, the outer bar is fixedly connected with the cabinet door through the connecting bars, the inner bar is rotatably connected with the outer bar, a rectangular groove is formed in the front side wall of the cabinet body, a ventilation hole is formed in the top wall of the cabinet body, and a rectangular bulge matched with the rectangular groove is formed in the cabinet door; the placing part comprises a base, a cover plate and a rear wall partition block, one end of the rear wall partition block is fixedly connected to the lower end of the rear side wall of the cabinet body, the other end of the rear wall partition block is fixedly connected with the base, the base is rectangular and has no bottom, the inner lower end of the base is fixedly connected with an annular placing plate, lower connecting cylinders are arranged on the outer sides of the left side wall and the right side wall, upper connecting cylinders and fixing bolts are arranged on the side wall of the cover plate, and the fixing bolts are respectively in threaded connection with the upper connecting cylinders and the lower connecting cylinders; the function portion, the function portion includes joint cooling module and temperature control assembly.

Description

Explosion-proof safety isolation transformer control box

Technical Field

The utility model relates to the technical field of electrical explosion prevention, in particular to an explosion-proof safety isolation transformer control box.

Background

Combustible explosive gas or dust is often generated in the production process of industrial departments such as petroleum, coal, textile, chemistry and the like, the surrounding air of the production units is often explosive due to the fact that the combustible explosive gas or dust is mixed, once the gas is ignited by open fire, severe explosion happens to cause major accidents, electric sparks generated in the operation process of working electric equipment in the environment are one of important reasons for the accidents, and the external explosive gas often penetrates into the electric equipment through the gaps of the shell of the electric equipment; the electric equipment can generate overheating phenomenon in the operation process, and combustible explosive gas can be decomposed from insulating oil or other organic insulators in the electric equipment; thus, when the electrical equipment generates sparks, the combustible and explosive gas inside the housing may be ignited to explode, and the combustible and explosive gas in the external space may be detonated to cause a serious accident, and the place where the sparks are most easily generated in the electrical equipment is the wiring place.

In order to avoid the above accidents, the electrical apparatus working in the flammable and explosive gas environment is usually placed in a sealed explosion-proof cabinet body to isolate the flammable and explosive gas from the electrical apparatus, and how to avoid the occurrence of electric sparks at the joint becomes the key of the explosion-proof cabinet in which the temperature reduction treatment has been performed on the explosion-proof cabinet body.

In view of the above, there is a need for an explosion-proof safety isolation transformer control box.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an explosion-proof safety isolation transformer control box which can perform isolation cooling on a joint and automatically form ventilation cooling according to the temperature in a cabinet body.

In order to achieve the purpose, the utility model adopts the technical scheme that the explosion-proof safety isolation transformer control box comprises:

the control cabinet comprises a cabinet body, a loop bar assembly and a cabinet door, wherein the loop bar assembly comprises an inner bar, an outer bar and a plurality of connecting bars, two ends of the inner bar penetrate through the outer bar and are fixedly connected with the cabinet body through the connecting bars, the outer bar is fixedly connected with the cabinet door through the connecting bars, the inner bar is rotatably connected with the outer bar, a rectangular groove is formed in the front side wall of the cabinet body, a ventilation hole is formed in the top wall of the cabinet body, and a rectangular bulge matched with the rectangular groove is formed in the cabinet door;

the placing part comprises a base, a cover plate and a rear wall partition block, one end of the rear wall partition block is fixedly connected to the lower end of the rear side wall of the cabinet body, the other end of the rear wall partition block is fixedly connected with the base, the base is rectangular and has no bottom, the inner lower end of the base is fixedly connected with an annular placing plate, lower connecting cylinders are arranged on the outer sides of the left side wall and the right side wall of the cover plate, upper connecting cylinders and fixing bolts are arranged on the left side wall and the right side wall of the cover plate, and the fixing bolts are respectively in threaded connection with the upper connecting cylinders and the lower connecting cylinders;

the function portion, the function portion includes joint cooling module and temperature control assembly.

Preferably, connect cooling module including cooling box body, coolant liquid bag and cooling lid, cooling box body fixed connection is equipped with a plurality of circular through-holes in the lateral wall intermediate position behind the cabinet body on, and the coolant liquid bag can be dismantled and connect inside the cooling box body, and cooling lid hinge connection is on the lateral wall before the cooling box body.

Preferably, the temperature control assembly comprises a convex base, a plurality of ventilation fans and a plurality of memory springs, vent holes are formed in the convex base, the ventilation fans are detachably connected in the vent holes, one end of each memory spring is fixedly connected to the inner side of the top wall of the cabinet body, and the other end of each memory spring is fixedly connected to two sides of the upper surface of the convex base.

Preferably, the convex base is provided with a power-on convex column, the bottom wall of the cabinet body is provided with a power-on concave block at a corresponding position, and the ventilation fan is respectively connected with the power-on convex column and the power-on concave block through circuits.

Preferably, the convex seat projection matches the transfer port.

Preferably, the cooling liquid bag is made of elastic rubber materials.

Preferably, the joint of the rectangular protrusion and the rectangular groove is sealed by a plastic sealing strip.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the explosion-proof safety isolation transformer control box, the joint cooling assembly is arranged, the joint is placed in the cooling box body, the periphery of the joint is exploded by the flame-retardant cooling liquid bag, when sparks are started, one is to organize spark combustion spreading, and the other is to rapidly reduce high temperature generated by sparks at the joint through temperature exchange of the cooling liquid.

2. According to the explosion-proof safety isolation transformer control box, due to the arrangement of the temperature control assembly, when the temperature generated by long-time operation in the cabinet body reaches a limit, the memory spring pulls the convex seat up according to the contraction change of the temperature, so that the ventilation fan is positioned at the outer side of the cabinet body and is electrified at the same time, and the ventilation fan is used for ventilating and cooling the cabinet body through the ventilation hole.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a control box of an explosion-proof safety isolation transformer provided by the utility model;

FIG. 2 is a schematic sectional view of a cabinet according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a placing section in the embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a joint cooling assembly in an embodiment of the utility model;

description of reference numerals:

1. a control cabinet; 10. a cabinet body; 100. a rectangular groove; 101. a ventilation hole; 102. electrifying the concave block; 11. a loop bar assembly; 110. an inner rod; 111. an outer rod; 112. a connecting rod; 12. a cabinet door; 120. a rectangular protrusion;

2. a placement section; 20. a base; 201. an annular placing plate; 202. a lower connecting cylinder; 21. a cover plate; 210. an upper connecting cylinder; 211. a fixing bolt; 22. a rear wall spacer block;

3. a functional section; 30. a joint cooling assembly; 301. cooling the box body; 3010. a circular through hole; 302. a cooling fluid bladder; 303. cooling the box cover; 31. a temperature control assembly; 310. a convex base; 3101. a vent hole; 3102. a power-on convex column; 311. A ventilator; 312. a memory spring;

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1-4, an explosion-proof safety isolating transformer control box includes:

the control cabinet 1 comprises a cabinet body 10, a loop bar assembly 11 and a cabinet door 12, wherein the loop bar assembly 11 comprises an inner bar 110, an outer bar 111 and a plurality of connecting bars 112, two ends of the inner bar 110 penetrate through the outer bar 111 and are fixedly connected with the cabinet body 10 through the connecting bars 112, the outer bar 111 is fixedly connected with the cabinet door 12 through the connecting bars 112, the inner bar 110 is rotatably connected with the outer bar 111, a rectangular groove 100 is formed in the front side wall of the cabinet body 10, a ventilation hole 101 is formed in the top wall, and a rectangular protrusion 120 matched with the rectangular groove 100 is formed in the cabinet door 12;

the placing part 2 comprises a base 20, a cover plate 21 and a rear wall partition block 22, one end of the rear wall partition block 22 is fixedly connected to the lower end of the rear side wall of the cabinet body 10, the other end of the rear wall partition block is fixedly connected with the base 20, the base 20 is rectangular and has no bottom, the inner lower end of the base is fixedly connected with an annular placing plate 201, lower connecting cylinders 202 are arranged on the outer sides of the left side wall and the right side wall, upper connecting cylinders 210 and fixing bolts 211 are arranged on the left side wall and the right side wall of the cover plate 21, and the fixing bolts 211 are respectively in threaded connection with the upper connecting cylinders 210 and the lower connecting cylinders 202;

a functional part 3, said functional part 3 comprising a joint cooling assembly 30 and a temperature control assembly 31.

When the device is used specifically, the cover plate 21 can be detached, the isolation transformer is placed on the annular placing plate 201 in the base 20, the fixing bolts 211 are respectively connected into the upper connecting cylinder 210 and the lower connecting cylinder 202 in series, the cover plate 21 is fixed through threaded connection, the isolation transformer is fixed through the cover plate 21 and the annular placing plate 201, the cooling box cover 303 is opened, the isolation transformer and an external connector are placed into the circular through hole 3010 of the cooling box body 301, the connector is fixed through the deformation of the cooling liquid bag 302, electric sparks possibly generated at the connector are avoided in advance through the flame-retardant and heat-absorbing characteristics of the cooling liquid bag 302, when the temperature in the cabinet body 10 is too high due to the long-term use of the electric appliance, the memory spring 312 contracts and changes in a convex mode at the critical point, the seat 310 rises upwards after the memory spring 312 contracts, the circular convex column 3102 contacts the convex seat 310, the ventilation fan 311 starts to rotate to ventilate when being electrified, meanwhile, the position of the ventilation fan 311 also moves from the inner side of the cabinet body 10 to the outer side of the cabinet body 10, airflow circulates through the zigzag vent holes 3101 under the action of the ventilation fan 311, and external dust or other excessive dust is prevented from being changed into the inner side of the cabinet body 10 in the circulation mode, so that the deflagration in the cabinet body is further avoided.

Specifically, the joint cooling assembly 30 includes a cooling box body 301, a cooling liquid bag 302 and a cooling box cover 303, the cooling box body 301 is fixedly connected to the middle position of the rear side wall of the cabinet body 10, a plurality of circular through holes 3010 are formed in the cooling box body 301, the cooling liquid bag 302 is detachably connected to the inside of the cooling box body 301, and the cooling box cover 303 is hinged to the front side wall of the cooling box body 301; the circular through hole 3010 enables the lines at the two ends of the joint to penetrate through the cooling box body 301, the cooling liquid bag 302 has the characteristics of elasticity change and heat absorption and cooling, one of the cooling liquid bag can be used for fixing and adapting the joint, and the other cooling liquid bag can achieve the purposes of inflaming retarding and rapid cooling through the characteristics of the cooling liquid bag when sparks appear on the joint.

Specifically, the temperature control assembly 31 includes a convex base 310, a plurality of ventilation fans 311 and a plurality of memory springs 312, a ventilation hole 3101 is arranged in the convex base 310, the ventilation fan 311 is detachably connected in the ventilation hole 3101, one end of each memory spring 312 is fixedly connected to the inner side of the top wall of the cabinet body 10, and the other end of each memory spring 312 is fixedly connected to two sides of the upper surface of the convex base 310; the electric appliance inside the cabinet 10 generates heat after long-time operation, when the temperature inside the cabinet 10 rises to a certain degree to the critical point of the memory spring 312, the memory spring 312 which contracts drives the convex seat 310 to rise, the ventilation fan 311 which is arranged on the convex seat also moves to the outside of the cabinet 10 from the inside of the cabinet 10, and the zigzag ventilation hole 3101 is arranged, so that although the ventilation efficiency is reduced, inflammable matters such as excessive dust and the like can be effectively prevented from entering the inside of the cabinet along with ventilation in the ventilation process.

Specifically, the convex base 310 is provided with a power-on convex column 3102, the bottom wall of the cabinet 10 is provided with a power-on concave block 102 at a corresponding position, and the ventilation fan 311 is respectively in circuit connection with the power-on convex column 3102 and the power-on concave block 102.

Specifically, the convex part of the convex seat 310 matches with the ventilation hole 101; in the process of raising the memory spring 312, the power-on convex column 3102 moves along with the memory spring and is closed with the power-on concave block 102 to provide power for the ventilation fan 311, and when the temperature in the cabinet body 10 is reduced to a certain temperature, the memory spring 312 is stretched and changed to enable the convex seat 310 to return to the original position again, so as to seal the ventilation hole 101 and prevent external air from entering the cabinet body 10.

Specifically, the cooling liquid bag 302 is made of an elastic rubber material; the rubber material has the characteristics of good deformation and flame retardance.

Specifically, the joint of the rectangular protrusion 120 and the rectangular groove 100 is sealed by a plastic sealing strip; the cabinet body 10 and the cabinet door 12 are closed by the embedding of the rectangular protrusion 120 and the rectangular groove 100, and the sealing performance is very high, and the sealing strip is added at the closed position of the cabinet body 10 and the cabinet door 12, so that the sealing performance is stronger.

The present invention has been further described with reference to the examples, but the present invention is not limited to the above-described embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides an explosion-proof safety isolation transformer control box which characterized in that includes:

the control cabinet (1), the control cabinet (1) comprises a cabinet body (10), a loop bar assembly (11) and a cabinet door (12), the loop bar assembly (11) comprises an inner bar (110), an outer bar (111) and a plurality of connecting bars (112), two ends of the inner bar (110) penetrate through the outer bar (111) and are fixedly connected with the cabinet body (10) through the connecting bars (112), the outer bar (111) is fixedly connected with the cabinet door (12) through the connecting bars (112), the inner bar (110) is rotatably connected with the outer bar (111), a rectangular groove (100) is formed in the front side wall of the cabinet body (10), a ventilation hole (101) is formed in the top wall of the cabinet body, and a rectangular protrusion (120) matched with the rectangular groove (100) is formed in the cabinet door (12);

the cabinet comprises a placing part (2), wherein the placing part (2) comprises a base (20), a cover plate (21) and a rear wall separation block (22), one end of the rear wall separation block (22) is fixedly connected to the lower end of the rear side wall of the cabinet body (10), the other end of the rear wall separation block is fixedly connected with the base (20), the base (20) is rectangular and has no bottom, the lower end of the inner part of the base is fixedly connected with an annular placing plate (201), lower connecting cylinders (202) are arranged on the outer sides of the left side wall and the right side wall of the cover plate (21), upper connecting cylinders (210) and fixing bolts (211) are arranged on the left side wall and the right side wall of the cover plate (21), and the fixing bolts (211) are respectively in threaded connection with the upper connecting cylinders (210) and the lower connecting cylinders (202);

a functional part (3), the functional part (3) comprising a joint cooling assembly (30) and a temperature control assembly (31).

2. The explosion-proof safety isolating transformer control box of claim 1, characterized in that:

connect cooling module (30) including cooling box body (301), coolant liquid bag (302) and cooling box lid (303), cooling box body (301) fixed connection in the cabinet body (10) back side wall intermediate position is equipped with a plurality of circular through-holes (3010) on it, coolant liquid bag (302) can dismantle connect in inside cooling box body (301), cooling box lid (303) hinge connection in on the lateral wall before cooling box body (301).

3. The explosion-proof safety isolating transformer control box of claim 1, characterized in that:

the temperature control assembly (31) comprises a convex base (310), a plurality of ventilation fans (311) and a plurality of memory springs (312), vent holes (3101) are formed in the convex base (310), the ventilation fans (311) are detachably connected in the vent holes (3101), one ends of the memory springs (312) are fixedly connected to the inner side of the top wall of the cabinet body (10), and the other ends of the memory springs are fixedly connected to the two sides of the upper surface of the convex base (310).

4. An explosion-proof safety isolating transformer control box according to claim 3, characterized in that:

the ventilating fan is characterized in that an electrifying convex column (3102) is arranged on the convex seat (310), an electrifying concave block (102) is arranged at a position corresponding to the bottom wall of the cabinet body (10), and the ventilating fan (311) is respectively in circuit connection with the electrifying convex column (3102) and the electrifying concave block (102).

5. An explosion-proof safety isolating transformer control box according to claim 3, characterized in that:

the convex part of the convex seat (310) is matched with the ventilation hole (101).

6. The explosion-proof safety isolating transformer control box of claim 2, characterized in that:

the cooling liquid bag (302) is made of elastic rubber materials.

7. The explosion-proof safety isolating transformer control box of claim 1, characterized in that: the joint of the rectangular protrusion (120) and the rectangular groove (100) is sealed by a plastic sealing strip.