CN115275801A

CN115275801A - Inflating cabinet

Info

Publication number: CN115275801A
Application number: CN202110487533.7A
Authority: CN
Inventors: 裴军; 王广先; 袁松强; 刘震; 吴昊; 李文洋
Original assignee: Chint Electric Co Ltd
Current assignee: Chint Electric Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-11-01

Abstract

The utility model provides an aerify cabinet, is including setting up the sealed gas tank in the cabinet is internal, sealed gas tank is including the installation cavity and the gas bag of mutual intercommunication, the gas bag is located one side of installation cavity, and the roof of gas bag is higher than the roof of installation cavity, and the lateral wall of keeping away from the installation cavity at the gas bag is equipped with the heat dissipation window sealed assembly is to keeping away from the convex heat dissipation package of gas bag direction on the heat dissipation window. According to the inflatable cabinet, the air bag is arranged on one side of the installation cavity, the top wall of the air bag is higher than that of the installation cavity, when heat in the sealed air box flows to the air bag and the heat dissipation bag, the heat rises vertically along the inner wall of the air bag and flows to the heat dissipation bag along the inner wall to dissipate heat, and convection in the sealed air box is enhanced due to the chimney effect, so that the flow of the heat to the air bag and the heat dissipation bag is accelerated, and the heat dissipation is facilitated.

Description

Inflating cabinet

Technical Field

The invention relates to the field of medium-voltage electrical equipment, in particular to an inflatable cabinet.

Background

Temperature and insulation are two most important indexes of the health state of the electrical equipment, and the two factors influence each other, so that a lot of electrical accidents can be effectively avoided as long as the temperature rise condition can be effectively controlled. At present, to aerifing the cabinet too concentrated and the poor problem of radiating environment of operation in-process heat, generally adopt at the big heat dissipation package of sealed gas tank rear portion installation, promote the inside and outside heat exchange of aerifing the cabinet through increasing sealed gas tank effective volume and heat radiating area, but because the reason of its structure for the heat can be concentrated on sealed gas tank top usually, so just has following defect: firstly, the heat dissipation bag is assembled at the upper side of the rear part of the sealed air box, so that a large part of heat concentrated at the top of the sealed air box cannot flow into the heat dissipation bag in a horizontal convection mode; secondly, as the upper edge of the inlet of the heat dissipation bag is lower than the top of the sealed air box, a certain height difference exists between the top of the sealed air box and the inlet of the heat dissipation bag, and only when the heat at the top of the sealed air box is gathered to a certain degree or the temperature is obviously lower than the temperature of the sealed air box, convection can occur, so that heat dissipation is realized; thirdly, the transverse reinforcing ribs are arranged on the inner side of the top of the sealed air box and can block heat flow, so that the heat cannot flow to the heat dissipation bag smoothly.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the inflatable cabinet with a good heat dissipation effect.

In order to realize the purpose, the invention adopts the following technical scheme:

the utility model provides an aerify cabinet, is including setting up the sealed gas tank in the cabinet is internal, sealed gas tank is including the installation cavity and the gas bag of mutual intercommunication, the gas bag is located one side of installation cavity, and the roof of gas bag is higher than the roof of installation cavity, and the lateral wall of keeping away from the installation cavity at the gas bag is equipped with the heat dissipation window who is used for installing the heat dissipation package.

Further, the height of the bottom side of the heat dissipation window is smaller than the height of the top wall of the installation cavity, and the height of the top side of the heat dissipation window is larger than the height of the top wall of the installation cavity.

Further, the heat dissipation package is including the sealed shell of sealed assembly at the heat dissipation window, sealed shell is the concave font structure that one side has the depressed area by aluminum plate welding, the depressed area is relative with the heat dissipation window to set up a plurality of heating panels in the depressed area.

Furthermore, reinforcing ribs are arranged on the inner side of the top wall of the mounting cavity and are distributed along the direction towards the heat dissipation window.

Furthermore, the outer surface of the sealed air box is provided with a reinforcing rib and a heat dissipation scale.

Further, three-station switch and circuit breaker are equipped with in the installation cavity the sealed cross-under of roof of installation cavity has the bus-bar sleeve pipe, and the bus-bar sleeve pipe is connected with three-station switch, circuit breaker through connecting female arranging, has the wire outgoing sleeve pipe at the sealed cross-under of roof of gas package, the wire outgoing sleeve pipe is connected with the circuit breaker through connecting the copper bar.

Further, the three-station switch comprises a direct-acting conductor which is a round copper pipe, wherein the side wall of the round copper pipe is provided with a plurality of groups of radiating holes, and a radiating material is sprayed on the outer surface of the round copper pipe.

Furthermore, the circuit breaker comprises a solid-sealed polar pole, and at least one pair of mutually convective ventilation holes is formed in the solid-sealed polar pole.

Furthermore, the wire outlet sleeve is of an inner cone sleeve structure, and a conductor arranged in the wire outlet sleeve is of a bowl-shaped thin-wall structure; the connecting bus bar is a double-layer copper bar, the lap joint surface of the connecting bus bar is plated with silver, and the non-lap joint surface of the connecting bus bar is coated with heat dissipation coating.

Furthermore, a bus is erected outside the top wall of the sealed gas box and is connected with a connecting busbar in the installation cavity through a bus sleeve.

According to the inflatable cabinet, the air bag is arranged on one side of the installation cavity, the top wall of the air bag is higher than the top wall of the installation cavity, when heat in the installation cavity flows to the air bag and the heat dissipation bag, the heat rises vertically from the installation cavity along the inner wall of the air bag and flows to the heat dissipation bag along the inner wall for heat dissipation, and convection in the sealed air box is enhanced due to the chimney effect, so that the flow of the heat to the air bag and the heat dissipation bag is accelerated, and the heat dissipation is facilitated.

In addition, the reinforcing ribs arranged on the inner side of the top wall of the mounting cavity are arranged in the direction pointing to the heat dissipation window, so that the heat dissipation window plays a role in guiding the flow of heat and is beneficial to the flow of the heat to the heat dissipation bag; or the reinforcing ribs are arranged on the outer surface of the sealed air box, so that the reinforcing ribs formed by cold machining do not increase the heat productivity in the sealed air box.

In addition, the surfaces of the heat dissipation bag and the sealed air box are provided with the scales, so that the heat dissipation effect is enhanced.

In addition, the three-position switch and the circuit breaker arranged in the sealed air box are improved to be favorable for heat dissipation, and heat accumulation in the sealed air box is avoided.

Drawings

FIG. 1 is a schematic view of an inflatable cabinet according to the present invention;

FIG. 2 is a schematic structural view (inside) of an inflatable cabinet of the present invention;

fig. 3 is a side view of the sealed air box of the gas insulated cabinet (side provided with the heat dissipation window):

FIG. 4 is a front view of a sealed air box of an inflatable cabinet of the present invention:

FIG. 5 is a schematic view of the structure of the sealed air box and the heat dissipation bag in the inflatable cabinet according to the present invention;

FIG. 6 is a schematic structural diagram of a sealing air box, a heat dissipation bag and a circuit breaker in the gas insulated switchgear of the present invention;

fig. 7 is a schematic diagram of a combination of a three-position switch and a circuit breaker in an inflatable cabinet according to the present invention.

Detailed Description

The following further describes an embodiment of an inflatable cabinet according to the present invention with reference to the examples shown in fig. 1 to 7. An inflatable cabinet of the present invention is not limited to the description of the embodiments below.

The utility model provides an aerify cabinet, is including setting up the sealed gas tank in the cabinet body 1, sealed gas tank is including installation cavity 2 and the gas package 3 of mutual intercommunication, gas package 3 is located one side of installation cavity 2, and the roof of gas package 3 is higher than the roof 21 of installation cavity, and the lateral wall of keeping away from installation cavity 2 at gas package 3 is equipped with the heat dissipation window 31 that is used for installing heat dissipation package 4.

According to the inflatable cabinet, the air bag 3 is arranged on one side of the installation cavity 2, the top wall of the air bag 3 is higher than the top wall 21 of the installation cavity, when heat in the installation cavity 2 flows to the air bag 3 and the heat dissipation bag 4, the heat vertically rises from the installation cavity 2 along the inner wall of the air bag 3 and flows to the heat dissipation bag 4 along the inner wall for heat dissipation, and convection in the sealed air box is enhanced due to the chimney effect, so that the flow of the heat to the air bag 3 and the heat dissipation bag 4 is accelerated, and the heat dissipation is facilitated.

An embodiment of an inflatable cabinet is provided with reference to fig. 1 to 7, the inflatable cabinet includes a cabinet body 1, a sealed air box is disposed in the cabinet body 1, and preferably, the sealed air box is formed by welding stainless steel plates in a sealing manner, and the stainless steel plates are austenite 304 stainless steel plates with non-magnetic conductivity. The sealed air box comprises an installation cavity 2, wherein a three-position switch 5 and a circuit breaker 6 are assembled in the installation cavity 2, and the three-position switch 5 is fixed on the circuit breaker 6 to form a combined structure (see fig. 7) so as to be integrally assembled in the installation cavity 2; the top wall 21 of the installation cavity is hermetically connected with a bus sleeve 7 in a penetrating manner, a bus erected on the outer side of the top wall of the sealed gas box is connected with the bus sleeve 7, and one end of the bus sleeve 7 extends into the installation cavity 2 and is connected with the three-position switch 5 and the breaker 6 through a plurality of connecting busbars 71.

The sealed air box further comprises an air bag 3, the air bag 3 is located on one side of the installation cavity 2 and is communicated with the installation cavity 2, the height of the top wall of the air bag 3 is higher than the height of the top wall 21 of the installation cavity, in the embodiment, the whole sealed air box is cuboid, a partial area of one side wall in the sealed air box protrudes outwards, the air bag 3 is formed in the sealed air box corresponding to the sealed air box at the moment, preferably, the sealed air box protrudes upwards from the right side of the top wall of the sealed air box as shown in figures 2, 4 and 5, the left side space of the sealed air box is the installation cavity 2, the right side space of the sealed air box is the air bag 3, a plurality of wire outlet sleeves 8 are penetrated through the top wall of the air bag 3 in a sealing mode, and the wire outlet sleeves 8 are connected with the circuit breaker 6 through a connecting copper bar 81, in this embodiment, the generating line erects in the roof outside of sealed gas tank, considers to the expansion generating line of reaching the summit and can't set up heat abstractor at the top of sealed gas tank, has seted up heat dissipation window 31 at the right side wall of gas bag 3, and heat dissipation window 31 is located one side lateral wall of the cabinet body 1 sealed being equipped with heat dissipation package 4 on the heat dissipation window 31, when heat flow direction gas bag 3 and heat dissipation package 4 in installation cavity 2, the heat risees perpendicularly and follows the heat dissipation of inner wall flow direction heat dissipation package 4 along 3 inner walls of gas bag from installation cavity 2, because chimney effect makes the interior convection current of sealed gas tank strengthen to accelerate the heat to the flow of gas bag 3 and heat dissipation package 4, do benefit to the heat dissipation. The heat dissipation window 31 is sealed by the heat dissipation package 4, the heat dissipation package 4 is to keeping away from the direction protrusion of air pocket 3, and the heat dissipation package 4 is located one side of the cabinet body 1, and the heat dissipation package 4 is for protruding to the right side in fig. 2, 5 and 6, and the heat dissipation package 4 has also enlarged the capacity of sealed air box when the heat dissipation.

Preferably, the height of the bottom side of the heat dissipation window 31 is less than the height of the top wall 21 of the mounting cavity, and the height of the top side of the heat dissipation window 31 is greater than the height of the top wall 21 of the mounting cavity, i.e. the heat dissipation package 4 is mounted at a position crossing the top wall 21 of the mounting cavity.

Further preferably, the central heights of the heat dissipation window 31 and the heat dissipation package 4 are higher than the height of the top wall 21 of the installation cavity, and at this time, the central height of the heat dissipation package 4 is higher than the position where the bus bar sleeve 7 is fixed on the top wall 21 of the installation cavity, so that heat at the top of the sealed air box preferentially flows into the air bag 3 and the large heat dissipation package 4, and then heat dissipation is performed by a fan around the heat dissipation package 4 outside the sealed air box, and the heat inside the sealed air box can be rapidly reduced.

Further, as shown in fig. 3, the reinforcing ribs 22 arranged on the inner side of the top wall of the installation cavity 2 are arranged along the direction towards the heat dissipation window 31, the reinforcing ribs 22 are perpendicular to the plane where the heat dissipation window 31 is located, at this time, the reinforcing ribs 22 play a certain guiding role for heat flow and guide the heat to the heat dissipation window 31, compared with the existing reinforcing ribs 22 arranged transversely, the reinforcing ribs 22 of the embodiment can facilitate the heat on the upper portion of the sealed air box, especially, the heat around the bus bar sleeve 7 flows into the air bag 3 quickly, when the reinforcing ribs 22 are also arranged on the inner side of the bottom wall, the reinforcing ribs 22 can also be arranged along the direction towards the heat dissipation window 31, of course, the reinforcing ribs 22 on the top wall and the bottom wall of the installation cavity 2 can also be arranged on the outer surface of the installation cavity 2, and the reinforcing ribs 22 arranged on the side wall of the sealed air box are preferably arranged on the outer surface, so that even if the reinforcing ribs 22 have magnetic transformation after cold working, the martensite, the heating amount inside of the sealed air box will not be increased.

In addition, as shown in fig. 5 and 6, a plurality of groups of heat dissipation scales 9 for heat dissipation are further arranged on the outer surface of the sealed air box, the heat dissipation scales 9 arranged on the side walls are preferably separated by reinforcing ribs 22, and the heat dissipation scales 9 are preferably black heat dissipation scales 9, so that the heat dissipation on the surface of the sealed air box is facilitated.

The heat dissipation package 4 that corresponds to set up at heat dissipation window 31 includes seal housing 41, as shown in fig. 2, seal housing 41 has the concave font structure of depressed area for one side by the aluminum plate welding, the depressed area is relative with heat dissipation window 31 to set up a plurality of heating panels 42 at the depressed area, a plurality of heating panels 41 adopt parallel interval arrangement the surface coating of heating panel 41 has heat dissipation coating, and the heat dissipation package 4 of this kind of structure has increased the capacity of sealed gas tank with the cooperation of gas package 3, makes its radiating effect good by aluminium material, and the heating panel 42 relative with heat dissipation window 31 has increased heat radiating area, and the heat dissipation coating on its surface has accelerated thermal diffusion.

Further, the three-position switch 5 and the circuit breaker 6 which are arranged in the installation cavity 2 are also improved to facilitate heat dissipation.

As shown in fig. 2 and 7, three-position switch 5 is fixed on circuit breaker 6, and in this embodiment, three-position switch 5 adopts direct action type switch, and three-position switch 5 includes the direct action type conductor, the direct action type conductor is circular copper pipe the lateral wall of circular copper pipe is equipped with multiunit louvre and has the heat sink material at the surface spraying of circular copper pipe, and the louvre has increased gaseous convection current, makes the conductor can dispel the heat fast.

Breaker 6 is including sealing utmost point post 61 admittedly, setting that three station switch 5 corresponds is on sealing utmost point post 61 admittedly set up the ventilation hole 62 of at least a pair of mutual convection current on sealing utmost point post 61 admittedly, seal the inlet wire end 63 of utmost point post 61 admittedly and be connected with generating line sleeve pipe 7 and three station switch 5 through connecting female arranging 71, seal the leading-out terminal 64 of utmost point post 61 admittedly and set up the tip at sealing utmost point post 61 admittedly, preferred leading-out terminal 64 is located the one end that is close to gas package 3, leading-out terminal 64 is connected with outlet pipe 8 through connecting copper bar 81, leading-out terminal 64 sets up and has avoided inlet wire end 63 and leading-out terminal 64 distance too near at the tip of sealing utmost point post 61 admittedly, make the too concentrated problem of heat, leading-out terminal 64 is located the one end that is close to gas package 3 simultaneously, here has great space, do benefit to and accelerate the radiating rate.

Combine fig. 2 and 7 to provide a concrete structure who seals utmost point post 61 admittedly, gu seal utmost point post 61 including insulating casing, insulating casing's one end is used for installing and seals utmost point post 61 admittedly as supporting the end (for the left end of sealing utmost point post 61 admittedly in the picture), insulating casing's other end terminal surface is equipped with the second through wires hole (set up the right-hand member terminal surface at solid utmost point post 61 admittedly in the picture), be equipped with first through wires hole and support boss with one side outer wall at insulating casing, first perforation is located insulating casing's middle part, set up the upside at solid utmost point post 61 admittedly in the picture, it is used for supporting three-position switch 5 to support the boss to be located one side of keeping away from supporting the end, be provided with electrically conductive cavity and sealed vacuum interrupter's inside at insulating casing, vacuum interrupter's a terminal is used as inlet wire end 63 and is stretched out insulating casing through first through wires hole and is used for being connected with three-position switch 5, another terminal of vacuum interrupter is corresponding with the second through wires hole as outlet end 64. The lateral wall of insulating housing is equipped with at least a set of relative ventilation hole 62, ventilation hole 62 is used for the convection heat dissipation, and preferred ventilation hole 62 is located the one side that faces three-position switch 5 and the one side that faces away from three-position switch 5, in fig. 7, has set up a pair of ventilation hole 62, and two ventilation hole 62 set up respectively on the last lateral wall and the lower lateral wall of solid utmost point post 61 that seals.

In this embodiment, bus bar 7 and outlet sleeve 8 are all equipped with annular mounting groove, annular mounting groove sets up along bus bar 7, outlet sleeve 8's lateral wall respectively the annular mounting groove is equipped with the sealing washer, and bus bar 7, outlet sleeve 8 are through respective sealing washer and the sealed gas tank seal assembly.

The outgoing line sleeve 8 is of an inner cone sleeve structure, the conductor arranged inside the outgoing line sleeve 8 is of a bowl-shaped thin-wall structure, the heat dissipation area of the conductor of the structure is large, the skin effect is reduced, the overall heat dissipation effect is good, and meanwhile, the external overhead tubular bus connected with the outgoing line sleeve 8 is of a round thin-wall copper tube structure, so that the heat dissipation effect is improved.

Connect female row 71 and be double-deck copper bar, specifically adopt double-deck rectangle flat copper bar, be equipped with the cushion between the two-layer copper bar in the double-deck copper bar, guaranteed the clearance between the two-layer copper bar so, reduced the skin effect, in addition, connect female overlap joint silver-plating of arranging 71, connect female non-overlap joint coating heat dissipation coating of arranging 71, heat dissipation coating can promote copper bar surface heat dissipation and can also regard as insulating coating in the time, play the insulating effect of certain degree.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, numerous simple deductions or substitutions may be made without departing from the spirit of the invention, which shall be deemed to belong to the scope of the invention.

Claims

1. The utility model provides an aerify cabinet, is including setting up the sealed gas tank in the cabinet body (1), its characterized in that: sealed gas tank includes installation cavity (2) and gas bag (3) of intercommunication each other, gas bag (3) are located one side of installation cavity (2), and the roof of gas bag (3) is higher than roof (21) of installation cavity, and the lateral wall of keeping away from installation cavity (2) in gas bag (3) is equipped with heat dissipation window (31) that are used for installing heat dissipation package (4).

2. An inflatable cabinet as claimed in claim 1, wherein: the height of the bottom side of the heat dissipation window (31) is smaller than that of the top wall (21) of the mounting cavity, and the height of the top side of the heat dissipation window (31) is larger than that of the top wall (21) of the mounting cavity.

3. An inflatable cabinet as claimed in claim 1, wherein: the heat dissipation package (4) is including sealed assembly at sealed shell (41) of heat dissipation window (31), sealed shell (41) have the concave character shape structure of depressed area for one side by the aluminum plate welding, the depressed area is relative with heat dissipation window (31) to set up a plurality of heating panels (42) at the depressed area.

4. An inflatable cabinet as claimed in claim 1, wherein: and reinforcing ribs (22) are arranged on the inner side of the top wall (21) of the mounting cavity, and the reinforcing ribs (22) are distributed along the direction facing the heat dissipation window (31).

5. An inflatable cabinet as claimed in claim 1, wherein: and the outer surface of the sealed air box is provided with a reinforcing rib (22) and a heat dissipation scale (9).

6. An inflatable cabinet according to any of claims 1 to 5, wherein: three station switch (5) and circuit breaker (6) are equipped with in installation cavity (2) the sealed cross-under of roof (21) of installation cavity has bus-bar sleeve (7), and bus-bar sleeve (7) are connected with three station switch (5), circuit breaker (6) through connecting female arranging (71), have outlet wire sleeve (8) at the sealed cross-under of roof of gas package (3), outlet wire sleeve (8) are connected with circuit breaker (6) through connecting copper bar (81).

7. An inflatable cabinet according to claim 6, wherein: the three-position switch (5) comprises a direct-acting conductor, the direct-acting conductor is a circular copper pipe, a plurality of groups of heat dissipation holes are formed in the side wall of the circular copper pipe, and heat dissipation materials are sprayed on the outer surface of the circular copper pipe.

8. An inflatable cabinet as claimed in claim 6, wherein: the circuit breaker (6) comprises a solid-sealed pole (61), and at least one pair of mutually convective ventilation holes (62) are formed in the solid-sealed pole (61).

9. An inflatable cabinet as claimed in claim 6, wherein: the outgoing line sleeve (8) is of an inner cone sleeve structure, and a conductor arranged inside the outgoing line sleeve (8) is of a bowl-shaped thin-wall structure; the connecting bus bar (71) is a double-layer copper bar, silver is plated on the lapping surface of the connecting bus bar (71), and heat dissipation coating is coated on the non-lapping surface of the connecting bus bar (71).

10. An inflatable cabinet according to claim 6, wherein: and a bus is erected on the outer side of the top wall of the sealed gas box, and the bus is connected with a connecting bus bar (71) in the installation cavity (2) through a bus sleeve (7).