CN214478883U - Inside cooling switch board - Google Patents

Abstract

The utility model relates to an inside cooling switch board belongs to the switch board field, the power distribution box comprises a box body, a plurality of supports that are used for installing electrical equipment of fixedly connected with in the box, box lateral wall fixedly connected with intake pipe, the intake pipe communicates in the box, intake pipe fixedly connected with fan admits air, the fan that admits air covers the intake pipe cross-section setting, box top fixedly connected with blast pipe, the blast pipe communicates in the box, the inboard fixedly connected with overhead tank of box, the tank has the liquid nitrogen in the overhead tank, overhead tank fixedly connected with is responsible for, be responsible for and communicate in the overhead tank, be responsible for fixedly connected with self-operated temperature control valve, self-operated temperature control valve opens when the temperature is higher than the setting value, be responsible for inside rotation and be connected with the pivot, a plurality of impellers of pivot fixedly connected with, the main pipe is stretched out to pivot one end and the box setting, pivot extension portion fixedly connected with pointer, the box corresponds pointer position department fixedly connected with and instructs the dial plate. This application has the effect to initiatively cooling in the switch board.

Description

Inside cooling switch board

Technical Field

The application relates to the field of power distribution cabinets, in particular to an internal cooling power distribution cabinet.

Background

The distribution box is a low-voltage distribution device formed by assembling switch equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed metal cabinet according to the electrical wiring requirement.

In the prior art, a chinese patent application No. cn201610287537.x discloses a distribution box, which includes a box body, a lower door and an upper door are provided on the box body, the lower door is connected with the box body at one side by a hinge, the upper door is connected with the lower door at an upper and lower position by the hinge, a buffer device is provided between the upper door and the box body, the buffer device includes a connecting rod, and a tension spring is provided on the connecting rod; the invention has reasonable structural design, can change the opening and closing area according to the needs, avoids the error contact during the operation, opens the lower door left and right to be fully opened, opens the upper door up and down to be opened at the upper half part, realizes the buffer action during the up and down opening through the buffer device, can not cause the upper door to impact the lower door, and realizes the assistance to the closing of the door.

For the above-mentioned correlation technique, the inventor thinks that the air current is passed through poorly in the switch board, and the heat production of electrical equipment is difficult for the effluvium, and equipment is overheated and easily reduces electronic component's work efficiency and the insulating nature of circuit.

SUMMERY OF THE UTILITY MODEL

In order to improve the not good condition of heat dissipation in the switch board, this application provides an inside cooling switch board.

The application provides a pair of inside cooling switch board adopts following technical scheme:

the utility model provides an inside cooling switch board, the power distribution box comprises a box body, a plurality of supports that are used for installing electrical equipment of fixedly connected with in the box, box lateral wall fixedly connected with intake pipe, the intake pipe communicates in the box, intake pipe fixedly connected with fan admits air, the fan that admits air covers the intake pipe cross-section setting, box top fixedly connected with blast pipe, the blast pipe communicates in the box, the inboard fixedly connected with overhead tank of box, the canning has the liquid nitrogen in the overhead tank, overhead tank fixedly connected with is responsible for, be responsible for and communicate in the overhead tank, be responsible for fixedly connected with self-operated temperature control valve, self-operated temperature control valve opens when the temperature is higher than the setting value, be responsible for inside rotation and be connected with the pivot, a plurality of impellers of impeller of pivot fixedly connected with, pivot one end is stretched out and is responsible for and the box setting, pivot extension fixedly connected with pointer, the box corresponds pointer position department fixedly connected with and instructs the dial plate.

By adopting the scheme, when the temperature is higher than the set value, the self-operated temperature control valve is opened, liquid nitrogen in the pressure tank flows out from the main pipe, and the liquid nitrogen quickly evaporates in the box body to absorb heat in the box body, so that the temperature of the box body and the electrical equipment is reduced. The liquid nitrogen promotes the impeller to rotate when being responsible for, and the impeller drives the pointer through the pivot and rotates the instruction dial plate other end, reminds the staff liquid nitrogen in this switch board to have released, reduces the probability that the staff is frostbitten by the accident of liquid nitrogen, also reminds the staff in time to supply the liquid nitrogen in the overhead tank.

Preferably, a throttle valve is fixedly connected to the position, close to the self-operated temperature control valve and far away from the pressure tank, of the main pipe.

By adopting the scheme, the throttle valve limits the flow speed of the liquid nitrogen in the main pipe, so that the liquid nitrogen in the pressure tank is slowly released, the probability that the liquid nitrogen suddenly gushes out in a large quantity is reduced, and the condition that the running of the electrical equipment is influenced by the excessively low temperature adjustment in the tank body by the liquid nitrogen is reduced.

Preferably, the person in charge keeps away from a plurality of branch pipes of overhead tank position fixedly connected with, and all branch pipes all set up in the inboard top of box, and a plurality of through-holes have all been seted up to all branch pipe downside.

By adopting the scheme, liquid nitrogen in the main pipe slowly enters the branch pipe under the control of the throttle valve, and after the liquid nitrogen is evaporated in the branch pipe, the liquid nitrogen slowly falls from the top of the box body through the through hole under the action of density and gravity.

Preferably, all the supports are far away from the equal fixedly connected with heat dissipation fins in all the electrical equipment positions of electrical equipment one side correspondence.

By adopting the scheme, the heat dissipation fins absorb part of heat of the electrical equipment, the heat is dissipated from the fins, the heat dissipation area of the electrical equipment is increased, the contact area of the electrical equipment to the fallen low-temperature nitrogen is increased, and the heat dissipation efficiency is improved.

Preferably, the air inlet pipe is arranged downwards far away from one end of the box body.

Through adopting above-mentioned scheme, the terminal mode that sets up downwards of intake pipe reduces the probability that the rainwater got into the intake pipe, reduces the probability that the rainwater got into in the box, reduces the phenomenon emergence that the electrical equipment wets the short circuit in the box.

Preferably, one end of the air inlet pipe, which is far away from the box body, is fixedly connected with a filter screen, and the filter screen covers the section of the air inlet pipe.

By adopting the above scheme, the filter screen filters the dust removal to the air that gets into the box, reduces the content of the dust that carries in getting into the box air, reduces the dust and to the radiating influence of electrical equipment, improves electrical equipment's radiating efficiency.

Preferably, correspond intake pipe position department fixedly connected with air duct in the box, the air duct communicates in the intake pipe, and a plurality of shunt tubes of air duct fixedly connected with, all shunt tubes all fixed connection are in the bottom of the case, and a plurality of gas pockets have all been seted up to all shunt tubes near support one side.

By adopting the scheme, the air duct and the shunt tubes can uniformly spray air from the outside with relatively low temperature from the air holes distributed at the bottom of the box body, so that the uniformity of air flow flowing in the box body is improved, and the phenomenon of heat accumulation is reduced.

Preferably, the exhaust pipe is far away from box one end fixedly connected with fly net, and fly net covers the exhaust pipe cross-section setting.

Through adopting above-mentioned scheme, the fly net covers the blast pipe, and the fly net reduces animals such as mouse and insect and gets into the probability in the box from the blast pipe, reduces the probability that the electrical equipment in the box received animals to gnaw and damage.

In summary, the present application has the following beneficial effects:

1. when the temperature is higher than the set value, the self-operated temperature control valve is opened, liquid nitrogen in the pressure tank flows out from the main pipe, and the liquid nitrogen quickly evaporates in the box body to absorb heat in the box body and reduce the temperature of the box body and the electrical equipment;

2. when the liquid nitrogen passes through the main pipe, the impeller is pushed to rotate, the impeller drives the pointer to rotate to the other end of the indicating dial plate through the rotating shaft, the worker is reminded that the liquid nitrogen in the power distribution cabinet is released, the probability that the worker is accidentally frozen by the liquid nitrogen is reduced, and the worker is reminded of supplementing the liquid nitrogen in the pressure tank in time;

3. the heat dissipation fins absorb part of heat of the electrical equipment, the heat is dissipated from the fins of the electrical equipment, the heat dissipation area of the electrical equipment is increased, the contact area of the electrical equipment to falling low-temperature nitrogen is increased, and the heat dissipation efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of an internal cooling power distribution cabinet according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of an internal cooling power distribution cabinet according to an embodiment of the present application;

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

FIG. 4 is a cross-sectional view of a protruding pressure tank of an internal cooling distribution cabinet according to an embodiment of the present application;

FIG. 5 is a cross-sectional view of a protruding impeller of an internal cooling distribution cabinet according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a protruding pointer of an internal cooling power distribution cabinet according to an embodiment of the present application.

Description of reference numerals: 1. a box body; 11. a first through groove; 12. a door panel; 13. a support; 131. a heat dissipating fin; 2. an air inlet pipe; 21. a filter screen; 22. an air inlet fan; 23. an air duct; 231. a shunt tube; 2311. air holes; 3. an exhaust pipe; 31. an exhaust fan; 32. an insect-proof net; 33. a cover plate; 4. a pressure tank; 41. a main pipe; 411. a self-operated temperature control valve; 412. a throttle valve; 413. a branch pipe; 4131. a through hole; 5. a rotating shaft; 51. an impeller; 52. a pointer; 53. and indicating a dial.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses inside cooling switch board. Referring to fig. 1 and 2, including box 1, first logical groove 11 has been seted up to box 1 one side, and box 1 corresponds first logical groove 11 position department and rotates and is connected with door plant 12, and door plant 12 can cover first logical groove 11 setting. A plurality of brackets 13 for mounting electrical equipment are fixedly connected in the box body 1, and heat dissipation fins 131 are fixedly connected at positions corresponding to all electrical equipment on one side of all the brackets 13 away from the electrical equipment. The heat dissipation fins 131 absorb part of the heat of the electrical device, and dissipate the heat from the fins, thereby increasing the heat dissipation area of the electrical device and improving the heat dissipation efficiency.

Referring to fig. 1 and 2, the side wall of the box body 1 is close to the bottom and is fixedly connected with an air inlet pipe 2, the air inlet pipe 2 is communicated in the box body 1, one end of the air inlet pipe 2, far away from the box body 1, is downwards arranged, the air inlet pipe 2, far away from one end of the box body 1, is fixedly connected with a filter screen 21, and the filter screen 21 covers the cross section of the air inlet pipe 2. The intake pipe 2 is close to 1 one end fixedly connected with of box and admits air fan 22, and admit air fan 22 covers the setting of intake pipe 2 cross-section. The filter screen 21 filters and removes dust for the air entering the box body 1, reduces the content of dust carried in the air entering the box body 1, reduces the influence of the dust on the heat dissipation of the electrical equipment, and improves the heat dissipation efficiency of the electrical equipment.

Referring to fig. 2, the air duct 23 is fixedly connected to the position of the air inlet pipe 2 in the box body 1, the air duct 23 is communicated with the air inlet pipe 2, the air duct 23 is fixedly connected with a plurality of shunt tubes 231, all shunt tubes 231 are fixedly connected to the bottom of the box body, and a plurality of air holes 2311 are formed in one side, close to the bracket 13, of all shunt tubes 231. The air duct 23 and the shunt pipe 231 uniformly eject air with relatively low temperature from the outside from the air holes 2311 distributed at the bottom of the box body 1, so that the uniformity of air flow in the box body 1 is improved, and the phenomenon of heat accumulation is reduced.

Referring to fig. 2 and 3, the top of the box body 1 is fixedly connected with an exhaust pipe 3, the exhaust pipe 3 is communicated in the box body 1, the exhaust pipe 3 is close to an exhaust fan 31 fixedly connected with one end of the box body 1, the exhaust fan 31 covers the section of the exhaust pipe 3, the exhaust pipe 3 is far away from an insect-proof net 32 fixedly connected with one end of the box body 1, and the insect-proof net 32 covers the section of the exhaust pipe 3. An umbrella-shaped cover plate 33 is fixedly connected to the box body 1 corresponding to the exhaust pipe 3, and the cover plate 33 covers the exhaust pipe 3. The insect-proof net 32 covers the exhaust pipe 3, and the insect-proof net 32 reduces the probability that animals such as mice and insects enter the box body 1 from the exhaust pipe 3, and reduces the probability that electrical equipment in the box body 1 is damaged by gnawing of the animals.

Referring to fig. 4 and 5, a pressure tank 4 is fixedly connected to the top of the inner side of the tank body 1, liquid nitrogen is filled in the pressure tank 4, a main pipe 41 is fixedly connected to the pressure tank 4, the main pipe 41 is communicated with the pressure tank 4, a self-operated temperature control valve 411 is fixedly connected to the main pipe 41, and the self-operated temperature control valve 411 is opened when the temperature is higher than a set value by adjusting a temperature adjusting nut of the self-operated temperature control valve 411. A throttle valve 412 is fixedly connected to the position of the main pipe 41 close to the self-operated temperature control valve 411 and far away from the pressure tank 4. When the temperature is higher than the set value, the self-operated temperature control valve 411 is opened, liquid nitrogen in the pressure tank 4 flows out from the main pipe 41, and the liquid nitrogen is quickly evaporated in the tank body 1 to absorb heat in the tank body 1, so that the temperature of the tank body 1 and the electrical equipment is reduced. The throttle valve 412 limits the flow rate of liquid nitrogen in the main pipe 41, so that the liquid nitrogen in the pressure tank 4 is slowly released, the probability that the liquid nitrogen suddenly and largely gushes out is reduced, and the condition that the temperature in the tank body 1 is adjusted by the liquid nitrogen to be too low to influence the operation of electrical equipment is reduced.

Referring to fig. 4 and 5, a plurality of branch pipes 413 are fixedly connected to the main pipe 41 at positions away from the pressure tank 4, all the branch pipes 413 are arranged at the top of the inner side of the box 1, and a plurality of through holes 4131 are formed in the lower sides of all the branch pipes 413. The liquid nitrogen in the main pipe 41 slowly enters the branch pipe 413 under the control of the throttle valve 412, and after being evaporated in the branch pipe 413, the liquid nitrogen slowly falls from the top of the box body 1 through the through hole 4131 under the action of density and gravity.

Referring to fig. 5 and 6, a rotating shaft 5 is rotatably connected to a position, close to the throttle valve 412, inside the main pipe 41 and far away from the pressure tank 4, a plurality of impellers 51 are fixedly connected to the rotating shaft 5, one end of the rotating shaft 5 extends out of the main pipe 41 and the box body 1, a pointer 52 is fixedly connected to an extending part of the rotating shaft 5, and an indicating dial 53 is fixedly connected to a position, corresponding to the pointer 52, of the box body 1. The liquid nitrogen promotes impeller 51 to rotate when being responsible for 41, and impeller 51 drives pointer 52 through pivot 5 and rotates to the instruction dial plate 53 other end, reminds the staff liquid nitrogen in this switch board to have released, reduces the probability that the staff is accidentally frostbitten by the liquid nitrogen, also reminds the staff in time to supply the liquid nitrogen in pressure vessel 4.

The implementation principle of an inside cooling switch board of this application embodiment does: when the temperature is higher than the set value, the self-operated temperature control valve 411 is opened, liquid nitrogen in the pressure tank 4 flows out from the main pipe 41, the throttle valve 412 limits the flow rate of the liquid nitrogen in the main pipe 41, so that the liquid nitrogen in the pressure tank 4 is slowly released, the probability of sudden and large gushing of the liquid nitrogen is reduced, and the condition that the operation of electrical equipment is influenced by too low temperature adjustment in the tank body 1 by the liquid nitrogen is reduced.

The liquid nitrogen in the main pipe 41 slowly enters the branch pipe 413 under the control of the throttle valve 412, and after being evaporated in the branch pipe 413, the liquid nitrogen slowly falls from the top of the box body 1 through the through hole 4131 under the action of density and gravity. The liquid nitrogen is quickly evaporated in the box body 1 to absorb the heat in the box body 1, and the temperature of the box body 1 and the electrical equipment is reduced.

The liquid nitrogen promotes impeller 51 to rotate when being responsible for 41, and impeller 51 drives pointer 52 through pivot 5 and rotates to the instruction dial plate 53 other end, reminds the staff liquid nitrogen in this switch board to have released, reduces the probability that the staff is accidentally frostbitten by the liquid nitrogen, also reminds the staff in time to supply the liquid nitrogen in pressure vessel 4.

The heat dissipation fins 131 absorb part of heat of the electrical equipment, and dissipate the heat from the fins, so that the heat dissipation area of the electrical equipment is increased, the contact area of the electrical equipment to falling low-temperature nitrogen is increased, and the heat dissipation efficiency is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides an inside cooling switch board, includes box (1), fixedly connected with a plurality of supports (13) that are used for installing electrical equipment in box (1), its characterized in that: the side wall of the box body (1) is fixedly connected with an air inlet pipe (2), the air inlet pipe (2) is communicated in the box body (1), the air inlet pipe (2) is fixedly connected with an air inlet fan (22), the air inlet fan (22) covers the cross section of the air inlet pipe (2), the top of the box body (1) is fixedly connected with an exhaust pipe (3), the exhaust pipe (3) is communicated in the box body (1), the inner side of the box body (1) is fixedly connected with a pressure tank (4), liquid nitrogen is filled in the pressure tank (4), the pressure tank (4) is fixedly connected with a main pipe (41), the main pipe (41) is communicated in the pressure tank (4), the main pipe (41) is fixedly connected with a self-operated temperature control valve (411), when the temperature is higher than a set value, the self-operated temperature control valve (411) is opened, the inner part of the main pipe (41) is rotatably connected with a rotating shaft (5), the rotating shaft (5) is fixedly connected with a plurality of impellers (51), one end of the rotating shaft (5) extends out of the main pipe (41) and the box body (1) is arranged, the extending part of the rotating shaft (5) is fixedly connected with a pointer (52), and the position of the box body (1) corresponding to the pointer (52) is fixedly connected with an indicating dial (53).

2. The internal cooling power distribution cabinet of claim 1, characterized in that: the position, close to the self-operated temperature control valve (411) and far away from the pressure tank (4), of the main pipe (41) is fixedly connected with a throttle valve (412).

3. The internal cooling power distribution cabinet of claim 1, characterized in that: be responsible for (41) and keep away from a plurality of branch pipes (413) of overhead tank (4) position fixedly connected with, all branch pipes (413) all set up in box (1) inboard top, and a plurality of through-holes (4131) have all been seted up to all branch pipe (413) downside.

4. The internal cooling power distribution cabinet of claim 1, characterized in that: all the supports (13) are far away from one side of the electrical equipment and correspond to all the positions of the electrical equipment, and heat dissipation fins (131) are fixedly connected with the supports.

5. The internal cooling power distribution cabinet of claim 1, characterized in that: the air inlet pipe (2) is arranged downwards far away from one end of the box body (1).

6. The internal cooling power distribution cabinet of claim 1, characterized in that: one end of the air inlet pipe (2) far away from the box body (1) is fixedly connected with a filter screen (21), and the filter screen (21) covers the cross section of the air inlet pipe (2).

7. The internal cooling power distribution cabinet of claim 1, characterized in that: correspond intake pipe (2) position department fixedly connected with air duct (23) in box (1), air duct (23) communicate in intake pipe (2), a plurality of shunt tubes (231) of air duct (23) fixedly connected with, all shunt tubes (231) all fixed connection in the bottom of the case, all shunt tubes (231) are close to support (13) one side and have all been seted up a plurality of gas pockets (2311).

8. The internal cooling power distribution cabinet of claim 1, characterized in that: the exhaust pipe (3) is far away from one end of the box body (1) and is fixedly connected with an insect-proof net (32), and the insect-proof net (32) covers the section of the exhaust pipe (3).

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