CN114744526B - Draw-out type low-voltage switch cabinet - Google Patents
Draw-out type low-voltage switch cabinet Download PDFInfo
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- CN114744526B CN114744526B CN202210401303.9A CN202210401303A CN114744526B CN 114744526 B CN114744526 B CN 114744526B CN 202210401303 A CN202210401303 A CN 202210401303A CN 114744526 B CN114744526 B CN 114744526B
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- heat dissipation
- cooling
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 60
- 238000001816 cooling Methods 0.000 claims abstract description 50
- 239000000110 cooling liquid Substances 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000005086 pumping Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/173—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal drawer type
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention is suitable for the technical field of switch cabinets, and provides a draw-out type low-voltage switch cabinet, which comprises a draw-out type low-voltage switch cabinet main body and an electrical component drawer, and further comprises: the cooling device comprises a circulating heat dissipation air cavity and a cooling cavity, wherein the cooling cavity is further formed in the inner side of the draw-out type low-voltage switch cabinet main body, a plurality of circulating heat dissipation air cavities are further formed between the cooling cavity and a drawer accommodating cavity, and the circulating heat dissipation air cavities and the drawer accommodating cavities are arranged in a one-to-one correspondence manner; the circulating heat dissipation air cavity is internally provided with an air delivery and heat dissipation assembly which is used for delivering air to the top of the electric component drawer arranged in the corresponding drawer accommodating cavity through a transmission assembly and pumping away the air at the bottom of the electric component drawer arranged in the drawer accommodating cavity; the air delivery heat dissipation assembly is also used for being matched with the cooling cavity and the cooling liquid in the cooling cavity to dissipate heat and reduce temperature of air flowing through the circulating heat dissipation cavity. The invention has the functions of circulating ventilation and cooling, ensures the reliable work of the electrical parts, and improves the reliability and the service life.
Description
Technical Field
The invention belongs to the technical field of switch cabinets, and particularly relates to a draw-out type low-voltage switch cabinet.
Background
The low-voltage switch cabinet is suitable for industries such as power plants, petroleum, chemical industry, metallurgy, textile, high-rise buildings and the like, and is used for power transmission, power distribution and electric energy conversion. The draw-out type is composed of a fixed cabinet body and a movable device part provided with main electrical elements such as a switch and the like, the movable part needs to be portable when moved and replaced, the positioning needs to be reliable after the movable part is moved, and drawers of the same type and specification can be reliably interchanged.
The prior draw-out type low-voltage switch cabinet easily generates a large amount of heat and can not be quickly dissipated in the using and operating processes, the loss of the switch cabinet is increased, and the service life of the device is not prolonged. Therefore, in view of the above current situation, there is an urgent need to develop a draw-out type low-voltage switch cabinet to overcome the shortcomings in the current practical application.
Disclosure of Invention
The embodiment of the invention aims to provide a draw-out type low-voltage switch cabinet, and aims to solve the problems that a large amount of heat is easily generated in the using and running processes of the existing switch cabinet and cannot be quickly dissipated, the loss of the switch cabinet is increased, and the service life of the device is not prolonged.
The embodiment of the invention is realized in such a way that a draw-out type low-voltage switch cabinet comprises a draw-out type low-voltage switch cabinet main body and an electrical component drawer, wherein a plurality of drawer accommodating cavities are longitudinally distributed in the draw-out type low-voltage switch cabinet main body, and the electrical component drawer is arranged on the drawer accommodating cavities in a matching way, and the draw-out type low-voltage switch cabinet also comprises: the cooling device comprises a draw-out type low-voltage switch cabinet main body, a circulating heat dissipation air cavity and a cooling cavity, wherein the inner side of the draw-out type low-voltage switch cabinet main body is also provided with the cooling cavity, cooling liquid is filled in the cooling cavity, a plurality of circulating heat dissipation air cavities are also arranged between the cooling cavity and a drawer accommodating cavity, and the circulating heat dissipation air cavities and the drawer accommodating cavities are arranged in a one-to-one correspondence manner; the circulating heat dissipation air cavity is internally provided with an air conveying and heat dissipation assembly, and the air conveying and heat dissipation assembly is used for conveying air to the top of the electric component drawer arranged in the corresponding drawer accommodating cavity through the conveying assembly and pumping away the air at the bottom of the electric component drawer arranged in the drawer accommodating cavity; the air delivery heat dissipation assembly is also used for being matched with the cooling cavity and a cooling liquid in the cooling cavity to dissipate heat and cool air flowing through the circulating heat dissipation cavity.
According to the technical scheme, the electric component drawer comprises a drawer limiting sealing cover plate, a drawer clip side plate and a drawer bottom net plate, the drawer bottom net plate is installed at the bottom of the drawer clip side plate in a matched mode, the drawer limiting sealing cover plate is fixedly installed at the outer end of the drawer clip side plate, and the drawer limiting sealing cover plate can be hermetically fixed on a port of the drawer accommodating cavity.
According to a further technical scheme, a drawer push-pull handle is further fixedly mounted on the drawer limiting sealing cover plate; drawer guide grooves are further formed in the bottoms of the two sides of the drawer-shaped side plate, drawer guide rails which are matched with the drawer guide grooves in a sliding connection mode are correspondingly installed and fixed at the bottom of the drawer accommodating cavity, and the drawer guide rails are in damping sliding connection with the drawer guide grooves.
According to a further technical scheme, the transmission assembly comprises an upper air cavity, an upper air hole, a lower air hole and a lower air cavity, the upper side and the lower side of the drawer accommodating cavity are respectively provided with the upper air cavity and the lower air cavity in the draw-out type low-voltage switch cabinet main body, and one ends of the upper air cavity and the lower air cavity are respectively communicated with the top and the bottom of the circulating heat dissipation air cavity; the upper air cavity is communicated with the top of the drawer accommodating cavity through a plurality of upper air holes which are uniformly distributed, and the lower air cavity is communicated with the bottom of the drawer accommodating cavity through a plurality of lower air holes which are uniformly distributed.
According to the further technical scheme, the air conveying and heat dissipating assembly comprises a heat conducting assembly and a fan, the fan is fixedly installed in the middle of the circulating heat dissipating air cavity, and the fan is used for pumping out air in the lower air cavity and conveying the air to the upper air cavity; the upper side and the lower side of the fan are respectively provided with at least one group of heat conduction assemblies, and one ends of the heat conduction assemblies extend into the cooling cavity.
According to a further technical scheme, the heat conducting assembly comprises a wind equalizing screen plate, a main heat conducting rod, a heat conducting ring and an auxiliary heat conducting rod, the circulating heat dissipation air cavity is of a cylindrical structure, and the wind equalizing screen plate is installed and fixed in the circulating heat dissipation air cavity in a matched mode; the fan-cooling heat pipe is characterized in that a plurality of heat conducting rings are fixedly arranged on one side, away from the fan, of the air equalizing screen plate, a plurality of auxiliary heat conducting rods are circumferentially distributed on one side, away from the fan, of the air equalizing screen plate, a plurality of main heat conducting rods are arranged on one sides, close to the cooling cavity, of the heat conducting rings, and the main heat conducting rods extend into the cooling cavity.
According to the further technical scheme, the main heat conducting rod, the heat conducting ring and the auxiliary heat conducting rod are integrally machined and formed, and the main heat conducting rod, the heat conducting ring and the auxiliary heat conducting rod are made of copper-aluminum alloy.
According to a further technical scheme, a dust absorption cotton layer is further arranged on one side, close to the fan, of the air-equalizing net plate.
According to the further technical scheme, a cooling liquid adding port and a cooling liquid discharging port are respectively formed in the draw-out type low-voltage switch cabinet main body, the cooling liquid adding port is communicated with the top of the cooling cavity, and the cooling liquid discharging port is communicated with the bottom of the cooling cavity.
Further technical scheme, still seted up the installation cavity between drawer holding chamber and the circulation heat dissipation wind chamber, installation cavity one end and drawer holding chamber intercommunication, the installation cavity cooperation is slided and is equipped with the screwed pipe, and the screwed pipe cooperation threaded connection has a threaded rod, and the threaded rod is kept away from the one end of screwed pipe and is connected with the output of the interior fixed servo motor of pull-out type low-voltage switchgear main part, servo motor's one end is kept away from to the screwed pipe is seal structure, and servo motor's one end is kept away from to the screwed pipe is passed through the connecting rope and is connected with the rotator, and the rotator is fixed in the drawer of electric component drawer and is returned the shape curb plate and keep away from the spacing one end of sealing the apron of drawer.
According to the draw-out type low-voltage switch cabinet provided by the embodiment of the invention, through special limitation of the circulating heat dissipation air cavity and the cooling cavity, the air transmission heat dissipation assembly is utilized to convey air to the top of the electric component drawer arranged in the corresponding drawer accommodating cavity through the transmission assembly, the air at the bottom of the electric component drawer arranged in the drawer accommodating cavity is pumped away, and the air flowing through the circulating heat dissipation air cavity is subjected to heat dissipation and temperature reduction through matching of the air transmission heat dissipation assembly, the cooling cavity and the cooling liquid in the cooling cavity, so that the purpose of circulating ventilation and temperature reduction of the electric component drawer is achieved, the reliable work of electric components in the electric component drawer is ensured, and the integral work reliability of the switch cabinet is further improved.
Drawings
Fig. 1 is a schematic perspective view of a drawout low-voltage switchgear provided in an embodiment of the present invention;
FIG. 2 is a front cross-sectional structural view of FIG. 1;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
fig. 4 is a schematic perspective view of an electrical component drawer in a drawer-type low-voltage switch cabinet according to an embodiment of the present invention;
FIG. 5 is an enlarged schematic view of portion B of FIG. 4;
fig. 6 is a schematic perspective view of a heat conducting assembly in a withdrawable low-voltage switchgear according to an embodiment of the present invention.
In the figure: 1-electric component drawer, 2-draw-out type low-voltage switch cabinet main body, 3-cooling liquid adding port, 4-cooling liquid discharging port, 5-drawer push-pull handle, 6-drawer limit sealing cover plate, 7-drawer clip side plate, 8-drawer bottom screen plate, 9-air-up cavity, 10-air-up hole, 11-air-down hole, 12-air-down cavity, 13-drawer guide rail, 14-circulating heat dissipation air cavity, 15-heat conduction assembly, 16-fan, 17-cooling cavity, 18-drawer accommodating cavity, 19-rotating body, 20-connecting rope, 21-mounting cavity, 22-threaded pipe, 23-threaded rod, 24-guide groove servo motor, 25-drawer, 26-air-equalizing screen plate, 27-main heat conducting rod, 28-heat conducting ring and 29-auxiliary heat conducting rod.
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 invention and do not limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1 to 3, a drawout low voltage switchgear provided for an embodiment of the present invention includes a drawout low voltage switchgear main body 2 and an electrical component drawer 1, wherein a plurality of drawer accommodating cavities 18 are longitudinally distributed in the drawout low voltage switchgear main body 2, the drawer accommodating cavities 18 are provided with the electrical component drawer 1 in a matching manner, and the drawout low voltage switchgear further includes:
the draw-out type low-voltage switch cabinet comprises a circulating heat dissipation air cavity 14 and a cooling cavity 17, wherein the cooling cavity 17 is further formed in the inner side of the draw-out type low-voltage switch cabinet main body 2, cooling liquid is filled in the cooling cavity 17, a plurality of circulating heat dissipation air cavities 14 are further formed between the cooling cavity 17 and a drawer accommodating cavity 18, and the circulating heat dissipation air cavities 14 and the drawer accommodating cavities 18 are arranged in a one-to-one correspondence manner; an air delivery and heat dissipation assembly is arranged in the circulating heat dissipation air cavity 14 and is used for delivering air to the top of the electric component drawer 1 arranged in the corresponding drawer accommodating cavity 18 through a transmission assembly and pumping out the air at the bottom of the electric component drawer 1 arranged in the drawer accommodating cavity 18; the air delivery and heat dissipation assembly is also used for being matched with the cooling cavity 17 and a cooling liquid in the cooling cavity to dissipate heat and cool air flowing through the circulating heat dissipation air cavity 14.
In the embodiment of the invention, the installation arrangement of the electrical component drawer 1 on the draw-out type low-voltage switch cabinet main body 2 belongs to the conventional limitation, through the special limitation of the circulating heat dissipation air cavity 14 and the cooling cavity 17, the air transmission and heat dissipation assembly is utilized to transmit air to the top of the electrical component drawer 1 installed in the corresponding drawer accommodating cavity 18 through the transmission assembly, the air at the bottom of the electrical component drawer 1 installed in the drawer accommodating cavity 18 is extracted, and the air flowing through the circulating heat dissipation air cavity 14 is subjected to heat dissipation and temperature reduction through the matching of the air transmission and heat dissipation assembly, the cooling cavity 17 and the cooling liquid in the cooling cavity, so that the purpose of performing circulating ventilation and temperature reduction on the electrical component drawer 1 is achieved, the reliable work of electrical components in the electrical component drawer 1 is ensured, and the whole work reliability of the switch cabinet is further improved.
As shown in fig. 3-5, as a preferred embodiment of the present invention, the electrical component drawer 1 includes a drawer limiting sealing cover plate 6, a drawer-clip-shaped side plate 7 and a drawer bottom mesh plate 8, the bottom of the drawer-clip-shaped side plate 7 is fittingly installed with the drawer bottom mesh plate 8, the outer end of the drawer-clip-shaped side plate 7 is fixedly installed with the drawer limiting sealing cover plate 6, and the drawer limiting sealing cover plate 6 can be hermetically fixed on a port of the drawer accommodating chamber 18; the drawer limiting sealing cover plate 6 is used for sealing and limiting, so that the air is prevented from overflowing, and external dust is prevented from entering the drawer 1 of the electric component; ventilation is facilitated by the definition of the drawer bottom web 8.
Furthermore, the material and the aperture of the drawer bottom mesh plate 8 are not limited, and a stainless steel mesh plate is preferably used.
Furthermore, a drawer push-pull handle 5 is also fixedly arranged on the drawer limit sealing cover plate 6, and the opening and closing of the drawer are facilitated through the drawer push-pull handle 5; drawer guide grooves 25 are further formed in the bottoms of the two sides of the drawer-shaped side plate 7, drawer guide rails 13 which are in sliding connection with the drawer guide grooves 25 in a matched mode are correspondingly installed and fixed at the bottom of the drawer accommodating cavity 18, the drawer guide rails 13 and the drawer guide grooves 25 are in damping sliding connection preferably, and reliability of sealing of the drawer limiting sealing cover plate 6 on the port of the drawer accommodating cavity 18 is improved.
As shown in fig. 2-3, as a preferred embodiment of the present invention, the transmission assembly includes an upper air cavity 9, an upper air hole 10, a lower air hole 11 and a lower air cavity 12, the upper and lower sides of the drawer accommodating cavity 18 are respectively provided with the upper air cavity 9 and the lower air cavity 12 in the draw-out low-voltage switchgear main body 2, and one end of the upper air cavity 9 and one end of the lower air cavity 12 are respectively communicated with the top and the bottom of the circulating heat dissipation air cavity 14; the upper air cavity 9 is communicated with the top of the drawer accommodating cavity 18 through a plurality of upper air holes 10 which are uniformly distributed, and the lower air cavity 12 is communicated with the bottom of the drawer accommodating cavity 18 through a plurality of lower air holes 11 which are uniformly distributed; the shapes of the upper wind hole 10 and the lower wind hole 11 are not limited, and the circulating ventilation operation is facilitated through the upper wind cavity 9, the upper wind hole 10, the lower wind hole 11 and the lower wind cavity 12.
As shown in fig. 1, 2 and 6, as a preferred embodiment of the present invention, the air transportation and heat dissipation assembly includes a heat conduction assembly 15 and a fan 16, the fan 16 is preferably installed and fixed in the middle of the circulating and heat dissipation air chamber 14, the fan 16 is preferably an axial flow fan, and the fan 16 is used for drawing air in the lower air chamber 12 and conveying the air to the upper air chamber 9; at least one group of heat conduction assemblies 15 are respectively arranged on the upper side and the lower side of the fan 16, and one ends of the heat conduction assemblies 15 extend into the cooling cavity 17.
Further, as shown in fig. 6, the heat conducting assembly 15 includes a wind equalizing screen 26, a main heat conducting rod 27, a heat conducting ring 28 and an auxiliary heat conducting rod 29, the circulating heat dissipation air cavity 14 is preferably a cylindrical structure, the wind equalizing screen 26 is installed and fixed in the circulating heat dissipation air cavity 14 in a matching manner, and the aperture and material of the wind equalizing screen 26 are not limited and can be set as required; a plurality of heat conducting rings 28 are fixedly arranged on one side of the air equalizing screen plate 26 away from the fan 16, a plurality of auxiliary heat conducting rods 29 are circumferentially distributed on one side of the air equalizing screen plate 26 away from the fan 16, a plurality of main heat conducting rods 27 are arranged on one side of the heat conducting rings 28 close to the cooling cavity 17, and the main heat conducting rods 27 extend into the cooling cavity 17; the main heat conducting rod 27, the heat conducting ring 28 and the auxiliary heat conducting rod 29 are preferably integrally formed, and the main heat conducting rod 27, the heat conducting ring 28 and the auxiliary heat conducting rod 29 are preferably made of copper-aluminum alloy and the like; the air-equalizing net plate 26 has the air-equalizing function, so that the effects of air delivery, heat dissipation and temperature reduction are improved; the main heat conducting rod 27, the heat conducting ring 28 and the auxiliary heat conducting rod 29 are limited, so that the heat conducting effect is improved, and the ventilation and heat dissipation effects are improved.
Furthermore, a dust absorption cotton layer (not shown) is arranged on one side of the air-equalizing net plate 26 close to the fan 16, so that the dust removal effect is achieved; in addition, the circulating heat dissipation air chamber 14 may be provided with an opening and closing door (not shown), so as to facilitate the periodic replacement of the dust absorption cotton layer on the air equalizing screen 26, which is not described in detail.
Furthermore, the type of the cooling liquid is not limited, and the cooling liquid can be set according to the requirement; the draw-out type low-voltage switch cabinet main body 2 is provided with a cooling liquid adding port 3 and a cooling liquid discharging port 4 respectively, the cooling liquid adding port 3 is communicated with the top of the cooling cavity 17, the cooling liquid discharging port 4 is communicated with the bottom of the cooling cavity 17, and the cooling liquid adding port 3 and the cooling liquid discharging port 4 are arranged to facilitate the supplement addition and replacement of the cooling liquid.
As shown in fig. 2-3, as a preferred embodiment of the present invention, a mounting cavity 21 is further disposed between the drawer accommodating cavity 18 and the circulating heat dissipation air cavity 14, one end of the mounting cavity 21 is communicated with the drawer accommodating cavity 18, a threaded pipe 22 is slidably disposed in the mounting cavity 21, a threaded rod 23 is connected to the threaded pipe 22 in a matching manner, one end of the threaded rod 23 away from the threaded pipe 22 is connected to an output end of a servo motor 24 fixed in the draw-out low-voltage switch cabinet main body 2, one end of the threaded pipe 22 away from the servo motor 24 is a sealing structure, one end of the threaded pipe 22 away from the servo motor 24 is connected to a rotating body 19 through a connecting rope 20, and the rotating body 19 is fixed to one end of the clip-shaped side plate 7 of the drawer of the electrical component drawer 1 away from the drawer limiting sealing cover plate 6; the threaded rod 23 is driven to rotate by controlling the servo motor 24, the threaded pipe 22 can be adjusted to move, the function of adjusting the pulling-out distance of the electrical component drawer 1 is achieved, the electrical component drawer 1 is convenient to adapt to different environments for use, the electrical component drawer 1 is prevented from being separated from the drawer accommodating cavity 18, and the electrical component drawer is safe and reliable. In addition, through the arrangement of the rotating body 19, the connecting rope 20 can be prevented from being twisted when the threaded pipe 22 rotates, and the working reliability is improved.
The embodiment of the invention provides a draw-out type low-voltage switch cabinet, which is limited by the combination of an electric component drawer 1, a transmission assembly, a wind conveying and heat dissipating assembly and cooling liquid, and can realize reliable circulating ventilation and heat dissipation of electric components in the electric component drawer 1. In addition, through the limitation of servo motor 24, screwed pipe 22, threaded rod 23, connecting rope 20 and rotator 19, drive threaded rod 23 through control servo motor 24 and rotate, adjustable screwed pipe 22 removes, and then plays the effect of adjusting the electric component drawer 1 and pulling out the distance, is convenient for adapt to different environment and uses, still avoids electric component drawer 1 to deviate from in drawer holding chamber 18, safe and reliable.
In addition, a temperature and humidity sensor (not shown) can be arranged in the drawer accommodating cavity 18, so that the temperature and humidity of the drawer accommodating cavity 18 can be reliably monitored; the control of the fan 16, the servo motor 24 and the temperature and humidity sensor can be realized by adopting the prior public technology, the model and the circuit connection are not particularly limited, and the control can be flexibly set in practical application.
The circuits, electronic components and modules referred to are well within the art of prior art and, needless to say, the present invention is not directed to software or process improvements.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (7)
1. The utility model provides a pull-out type low-voltage switchgear, includes pull-out type low-voltage switchgear main part and electric component drawer, longitudinal distribution has seted up a plurality of drawer holding chambeies in the pull-out type low-voltage switchgear main part, and the cooperation is installed electric component drawer on the drawer holding chamber, its characterized in that still includes:
the cooling device comprises a circulating heat dissipation air cavity and a cooling cavity, wherein the cooling cavity is further formed in the inner side of the draw-out type low-voltage switch cabinet main body, and cooling liquid is filled in the cooling cavity; a plurality of circulating heat dissipation air cavities are further formed between the cooling cavity and the drawer accommodating cavity, and the circulating heat dissipation air cavities and the drawer accommodating cavities are arranged in a one-to-one correspondence manner;
the circulating heat dissipation air cavity is internally provided with an air delivery and heat dissipation assembly which is used for delivering air to the top of the electric component drawer arranged in the corresponding drawer accommodating cavity through a transmission assembly and pumping away the air at the bottom of the electric component drawer arranged in the drawer accommodating cavity;
the air delivery and heat dissipation assembly is also used for being matched with the cooling cavity and a cooling liquid in the cooling cavity to dissipate heat and reduce temperature of air flowing through the circulating heat dissipation cavity;
the transmission assembly comprises an upper air cavity, an upper air hole, a lower air hole and a lower air cavity; an upper air cavity and a lower air cavity are respectively formed in the drawer accommodating cavity at the upper side and the lower side in the draw-out type low-voltage switch cabinet main body, and one end of each of the upper air cavity and the lower air cavity is respectively communicated with the top and the bottom of the circulating heat dissipation air cavity; the upper air cavity is communicated with the top of the drawer accommodating cavity through a plurality of uniformly distributed upper air holes, and the lower air cavity is communicated with the bottom of the drawer accommodating cavity through a plurality of uniformly distributed lower air holes;
the air delivery and heat dissipation assembly comprises a heat conduction assembly and a fan; the fan is arranged and fixed in the middle of the circulating heat dissipation air cavity and used for pumping out air in the lower air cavity and conveying the air to the upper air cavity; at least one group of heat conduction assemblies are respectively arranged on the upper side and the lower side of the fan, and one end of each heat conduction assembly extends into the cooling cavity;
the heat conducting assembly comprises a wind equalizing screen plate, a main heat conducting rod, a heat conducting ring and an auxiliary heat conducting rod; the circulating heat dissipation air cavity is of a cylindrical structure, and the air equalizing screen plate is installed and fixed in the circulating heat dissipation air cavity in a matching manner; a plurality of heat conducting rings are fixedly arranged on one side of the air equalizing screen plate, which is far away from the fan, and a plurality of auxiliary heat conducting rods are circumferentially distributed on one side of the air equalizing screen plate, which is far away from the fan; one side of the heat conduction ring close to the cooling cavity is provided with a plurality of main heat conducting rods, and the main heat conducting rods extend into the cooling cavity.
2. The draw-out low voltage switchgear as claimed in claim 1, wherein the electrical component drawer comprises a drawer limit closure cover plate, a drawer loop side plate and a drawer bottom mesh plate;
the bottom of the drawer-shaped side plate is provided with a drawer bottom net plate in a matching mode, the outer end of the drawer-shaped side plate is fixedly provided with a drawer limiting sealing cover plate, and the drawer limiting sealing cover plate can be hermetically fixed on a port of the drawer accommodating cavity.
3. The draw-out low-voltage switchgear cabinet according to claim 2, wherein the drawer limiting sealing cover plate is further provided with a drawer push-pull handle;
drawer guide grooves are further formed in the bottoms of the two sides of the drawer-shaped side plate, drawer guide rails which are matched with the drawer guide grooves in a sliding connection mode are correspondingly installed and fixed at the bottom of the drawer accommodating cavity, and the drawer guide rails are in damping sliding connection with the drawer guide grooves.
4. The draw-out type low-voltage switch cabinet according to claim 1, wherein the main heat conducting rod, the heat conducting ring and the auxiliary heat conducting rod are integrally formed, and the main heat conducting rod, the heat conducting ring and the auxiliary heat conducting rod are made of copper-aluminum alloy.
5. The draw-out low-voltage switchgear cabinet according to claim 1, wherein a dust absorption cotton layer is further provided on the side of the air-equalizing screen plate close to the fan.
6. The drawout low-voltage switchgear cabinet according to any one of claims 1 to 3, wherein the drawout low-voltage switchgear cabinet body is provided with a cooling liquid adding port and a cooling liquid discharging port, and the cooling liquid adding port is communicated with the top of the cooling cavity, and the cooling liquid discharging port is communicated with the bottom of the cooling cavity.
7. The draw-out low-voltage switch cabinet according to claim 2 or 3, wherein a mounting cavity is further formed between the drawer accommodating cavity and the circulating heat dissipation air cavity, and one end of the mounting cavity is communicated with the drawer accommodating cavity;
a threaded pipe is arranged in the mounting cavity in a matched sliding manner, a threaded rod is connected in the threaded pipe in a matched threaded manner, and one end of the threaded rod, which is far away from the threaded pipe, is connected with the output end of a servo motor fixed in the draw-out low-voltage switch cabinet main body;
the one end that servo motor was kept away from to the screwed pipe is seal structure, and servo motor was kept away from to the screwed pipe one end is connected with the rotator through connecting the rope, and the rotator is fixed in the drawer of electric component drawer and returns the shape curb plate and keep away from the spacing one end of sealing the apron of drawer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210401303.9A CN114744526B (en) | 2022-04-18 | 2022-04-18 | Draw-out type low-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210401303.9A CN114744526B (en) | 2022-04-18 | 2022-04-18 | Draw-out type low-voltage switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114744526A CN114744526A (en) | 2022-07-12 |
| CN114744526B true CN114744526B (en) | 2022-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210401303.9A Active CN114744526B (en) | 2022-04-18 | 2022-04-18 | Draw-out type low-voltage switch cabinet |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209730626U (en) * | 2019-03-18 | 2019-12-03 | 江西明正智能电气有限公司 | A kind of low voltage drawing-out switching carbinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3721901A1 (en) * | 1987-07-02 | 1989-01-12 | Heidelberger Druckmasch Ag | SWITCH CABINET |
| CN201174655Y (en) * | 2008-03-26 | 2008-12-31 | 北京合康亿盛科技有限公司 | High-voltage frequency transformer power unit cabinet having self-circulating wind-cooling apparatus |
| CN102281742A (en) * | 2011-07-01 | 2011-12-14 | 新疆金风科技股份有限公司 | Closed cabinet body cooling system and wind generating set |
| CN102411387A (en) * | 2011-07-11 | 2012-04-11 | 江苏金风风电设备制造有限公司 | Closed cabinet body control system and wind turbine generator system (WTGS) |
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- 2022-04-18 CN CN202210401303.9A patent/CN114744526B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209730626U (en) * | 2019-03-18 | 2019-12-03 | 江西明正智能电气有限公司 | A kind of low voltage drawing-out switching carbinet |
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