CN114639570A - Multi-plate high-heat-conduction high-voltage vacuum circuit breaker - Google Patents
Multi-plate high-heat-conduction high-voltage vacuum circuit breaker Download PDFInfo
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- CN114639570A CN114639570A CN202210404071.2A CN202210404071A CN114639570A CN 114639570 A CN114639570 A CN 114639570A CN 202210404071 A CN202210404071 A CN 202210404071A CN 114639570 A CN114639570 A CN 114639570A
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- box body
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
- H01H2009/526—Cooling of switch parts of the high voltage switches
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Abstract
The invention belongs to the technical field of circuit breakers, and particularly relates to a multi-plate high-heat-conduction high-voltage vacuum circuit breaker which comprises a body, wherein a box body is arranged outside the body; the box body is characterized in that a sliding plate is connected to the side wall inside the box body in a sliding mode, radiating grooves which are distributed in a staggered mode are formed in the side walls of the sliding plate and the box body respectively, a telescopic bag is connected between the end portion of the sliding plate and the end face of the box body, the body comprises a working assembly capable of generating heat, a heat absorption bag wraps the outside of the working assembly, and the heat absorption bag is communicated with the telescopic bag through an air pipe; according to the invention, the opening and closing of the heat dissipation groove on the side wall of the box body are controlled by utilizing the heat generated by the short circuiter, and no complex heat dissipation driving assembly is required to be arranged, so that the structure in the box body is simplified, the energy is saved, the environment is protected, meanwhile, the heat generated by the driving assembly during the operation is reduced, and the heat dissipation effect of the high-voltage vacuum circuit breaker is improved.
Description
Technical Field
The invention belongs to the technical field of circuit breakers, and particularly relates to a multi-plate high-heat-conduction high-voltage vacuum circuit breaker.
Background
The high-voltage vacuum circuit breaker is a high-voltage switch device widely applied to a power distribution network, has higher safety because the high-voltage vacuum circuit breaker can reliably extinguish arc when being frequently switched on and switched off, can be used for protecting and controlling electrical equipment in industrial and mining enterprises, power plants and transformer substations, and is particularly suitable for use places requiring no oil, less maintenance and frequent operation.
Because high voltage circuit breaker receives the influence of high temperature very easily, the event needs to carry out effectual control to its inside temperature, but circuit breaker among the prior art when dispelling the heat, often need occupy the inside space of box at its inside independent power radiator unit of installation, and extravagant electric energy, power unit self also can produce great heat at the during operation simultaneously to influence high voltage vacuum circuit breaker's radiating effect.
Therefore, the invention provides a multi-plate high-heat-conduction high-voltage vacuum circuit breaker.
Disclosure of Invention
To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.
The technical scheme adopted by the invention for solving the technical problem is as follows: the invention relates to a multi-plate high-heat-conduction high-voltage vacuum circuit breaker, which comprises a body, wherein a box body is arranged outside the body; the box body is characterized in that a sliding plate is connected to the side wall inside the box body in a sliding mode, radiating grooves which are distributed in a staggered mode are formed in the side walls of the sliding plate and the box body respectively, a telescopic bag is connected between the end portion of the sliding plate and the end face of the box body, the body comprises a working assembly capable of generating heat, a heat absorption bag wraps the outside of the working assembly, and the heat absorption bag is communicated with the telescopic bag through an air pipe; when the circuit breaker in the prior art is used for heat dissipation, an independent power heat dissipation assembly is often required to be installed in the circuit breaker, the space in a box body is occupied, electric energy is wasted, and meanwhile, when the power assembly works, larger heat can be generated, so that the heat dissipation effect of the high-voltage vacuum circuit breaker is influenced; when the breaker is used, heat generated by the working assembly can be transferred into the heat absorption bag, so that the air in the heat absorption bag can flow into the telescopic bag through the air pipe after the temperature of the air in the telescopic bag is high, the telescopic bag is extended to drive the sliding plate and the box body to slide relatively until the heat dissipation groove on the sliding plate is aligned with and communicated with the heat dissipation groove on the side wall of the box body, and the heat dissipation groove on the box body is in an open state, so that the high-efficiency heat dissipation in the box body is facilitated, when the temperature in the box body is reduced, the heat absorption bag and the telescopic bag synchronously drive the sliding plate to reset in the resetting process, and the sliding plate seals the heat dissipation groove on the box body again, so that the breaker body can be effectively protected, the opening and closing of the heat dissipation groove on the side wall of the box body are controlled by utilizing the heat generated by the short-circuiting device, and no complicated heat dissipation driving assembly is required to be additionally arranged, the structure inside the box body is simplified, energy is saved and the environment is protected, meanwhile, the heat generated by the work of the driving assembly is reduced, and the heat dissipation effect of the high-voltage vacuum circuit breaker is improved.
Preferably, a limiting plate is connected to the bottom surface of the box body corresponding to the outside of the heat absorption bag, a plurality of air holes are formed in the limiting plate, and a plurality of air venting cavities are formed in the heat absorption bag; when the heat that the work subassembly gived off is lower, the bleeder vent that sets up on the heat absorption bag this moment is convenient for the work subassembly on the heat give off of heat, reduce the work subassembly because of the parcel has the heat absorption bag and is difficult to the effective radiating condition, when the heat that the work subassembly sent is higher, the heat absorption bag expands along with it gradually, and make ventilative chamber close gradually under the restriction of limiting plate, thereby make the inside gas of heat absorption bag can more efficient intensification, and the radiating groove on the more quick drive box is opened, the radiating effect of circuit breaker has further been improved.
Preferably, the air holes correspond to the air permeable cavities one by one, the openings of the air holes are gradually reduced from one side close to the heat absorption bag to one side far away from the heat absorption bag, one end of each air hole close to the heat absorption bag is provided with a plugging block, and a pull rope is connected between each plugging block and the side wall of each air hole; when the heat that the work subassembly gived off is lower, ventilative chamber and bleeder vent all are in the open mode this moment, thereby be convenient for work subassembly go up thermal effluvium, when the heat that the work subassembly sent is higher, can impress the inside bleeder vent with the blocking piece during the heat absorption bag inflation, make the bleeder vent be in the shutoff state, the limiting plate can carry out more abundant and comprehensive spacing to the expansion deformation of heat absorption bag this moment, make the gas in the heat absorption bag can be more abundant quick flow in the flexible bag, and drive the quicker opening of radiating groove on the box.
Preferably, a magnetic block is arranged on the end face of the box body corresponding to one end, far away from the telescopic bag, of the sliding plate, and the magnetic block can attract the sliding plate; when the slide slides under the promotion of flexible bag, the magnetic block can attract the slide tip that is close to for radiating groove on the box is more quick and stable opening, and when the heat absorption bag temperature reduced and shrink when reseing, the slide can play the effect of postponing restoring to the throne under the attraction of magnetic block simultaneously, thereby makes scattering and disappearing that the heat of box inside can be more abundant.
Preferably, the magnetic block is connected with the box body in a sliding mode, a telescopic strip made of memory alloy materials is connected between the magnetic block and the end face of the box body, the telescopic strip can stretch when the temperature rises, and the end portion of the telescopic strip is connected with the working assembly through a heat conducting rod; some heat that the working component produced passes through heat conduction pole transmission to telescopic bar department, and the temperature of telescopic bar is increasing the back extension gradually to promote the magnetic block and be close to the slide tip, improved the appeal of magnetic block to the slide, thereby make the radiating groove on the box can be more quick open, and can postpone the closing time of this radiating groove, thereby make the inside heat of box can be more abundant scatter and disappear.
Preferably, partition plates are respectively connected between the side walls around the body and the corresponding side walls of the box body, the top end of the body is connected with a partition layer attached to the top surface of the box body, the top end of each partition plate is rotatably connected with a first fan blade through a rotating rod, a flow guide groove is formed in the partition plate corresponding to the bottom end of the rotating rod, and the bottom end of the rotating rod extends into the flow guide groove and is connected with a second fan blade; when the radiating groove on the box is in an open state, the fan blade can be driven to rotate when the air is blown out from the outside of the box, the fan blade is driven to rotate through the rotating rod, the fan blade drives the fan blade at the bottom end to rotate, and the air at the position of the guide groove can flow from top to bottom when the fan blade rotates, so that the external air can flow into the radiating groove at the top end of the partition plate and flow out of the radiating groove at the bottom of the box after flowing, the heat inside the box can be taken out, and the radiating efficiency of the circuit breaker is further improved.
Preferably, the side wall of the diversion trench is connected with a bulge bag, the bulge bag is communicated with the telescopic bag through a connecting pipe, and the side wall of the rotating rod at one side of the bulge bag is connected with a pressure rod; when the radiating groove on the box is in a closed state, the pressure rod on the rotating rod is driven by the first fan blade under the action of external wind to intermittently extrude the drum bag, so that the gas inside the drum bag is pressed into the telescopic bag after the drum membrane is compressed, the sliding plate is driven by the telescopic bag to move, and the radiating groove on the box is intermittently opened, so that the inside of the box can be continuously ventilated, and the stable heat dissipation inside the box is facilitated.
Preferably, a support ring is connected to the position, corresponding to the rotating rod, of the top surface of the box body, an expansion ring is connected to the side wall of an inner ring of the support ring, a gap is reserved between the expansion ring and the side wall of the rotating rod, and the expansion ring is made of a material which expands to a water strip when meeting water; although the cooperation of above-mentioned depression bar and drum bag, can drive opening and taking a breath of box intermittent type nature, but when meetting rainy day, the rainwater can be to the automatic heat dissipation of box, and no longer need the box to dispel the heat through the radiating groove, if the radiating groove is opened in rainy day, can make inside moisture or the rainwater in the air flow in the box, thereby influence the life of circuit breaker, this moment through setting up the expansion ring in bull stick department, make the expansion ring expand and extrude with the bull stick contact after meeting water, thereby can play fixed effect to the bull stick, this moment the flabellum no longer opens through rotating the radiating groove that drives on the box, thereby make the box can protect the circuit breaker body in rainy day.
Preferably, the side wall of the diversion trench corresponding to the outside of the drum bag is connected with a limiting sleeve, the outer end of the drum bag is connected with a sliding block connected with the limiting sleeve in a sliding manner, the outer end of the sliding block is provided with an arc-shaped surface, the inner wall of the limiting sleeve is connected with a group of arc-shaped elastic strips, the free ends of the elastic strips bend towards one side of the drum bag and are attached to the sliding block, and the width of the elastic strips is gradually increased from the connecting end to the free ends; the depression bar can extrude the slider outer end when rotating, because the reason of elasticity strip form, can easily slide for the elasticity strip when making the slider slide in the stop collar inside, and extrude the drum bag, but when the slider was from the inside roll-off of stop collar, great resistance was applyed to the reseing of elasticity strip tip to the slider, make the slider follow the inside roll-off that delays of stop collar, thereby make being in of open mode that the radiating groove on the box can the longer time, also reduce the collision of depression bar and slider tip high frequency simultaneously, the great condition of resistance when leading to the bull stick to rotate, the inside heat transfer effect of box has been improved.
Preferably, the side wall of the sliding block is provided with a clamping groove clamped with the end part of the elastic strip, and the shape of the clamping groove is matched with that of the end part of the elastic strip; when the slider slides to the stop collar inside under the extrusion of depression bar, the slider can drive the elastic strip and easily break away from and slide from the draw-in groove is inside, and when the slider resets under the effect of drum bag, the draw-in groove can exert great resistance to the elastic strip tip of passing by, has further prolonged the reset time of slider, improves the inside radiating effect of box.
The invention has the following beneficial effects:
1. according to the invention, the opening and closing of the heat dissipation groove on the side wall of the box body are controlled by utilizing the heat generated by the short circuiter, and no complex heat dissipation driving assembly is required to be arranged, so that the structure in the box body is simplified, the energy is saved, the environment is protected, meanwhile, the heat generated by the driving assembly during the operation is reduced, and the heat dissipation effect of the high-voltage vacuum circuit breaker is improved.
2. When the heat emitted by the working assembly is low, the air holes formed in the heat absorption bag facilitate the heat emission of the working assembly, the situation that the working assembly is difficult to effectively radiate heat due to the fact that the heat absorption bag is wrapped on the working assembly is reduced, when the heat emitted by the working assembly is high, the heat absorption bag gradually expands, and the air permeable cavity is gradually closed under the limitation of the limiting plate, so that the temperature of the gas in the heat absorption bag can be efficiently increased, the heat dissipation groove in the box body is rapidly driven to be opened, and the heat dissipation effect of the circuit breaker is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is an enlarged view at B in FIG. 1;
fig. 4 is a schematic structural view of the interior of the diversion trench in the second embodiment;
FIG. 5 is an enlarged view at C in FIG. 4;
in the figure: the heat-absorbing air bag comprises a body 1, a box body 2, a sliding plate 3, a heat-radiating groove 4, a telescopic bag 5, a working assembly 6, a heat-absorbing bag 7, an air pipe 8, a limiting plate 9, air vents 10, an air-permeable cavity 11, a blocking block 12, a pull rope 13, a magnetic block 14, a telescopic strip 15, a heat-conducting rod 16, a partition plate 17, a partition layer 18, a rotating rod 19, a first fan blade 20, a flow guide groove 21, a second fan blade 22, a drum bag 23, a connecting pipe 24, a pressure rod 25, an expansion ring 26, a limiting sleeve 27, a sliding block 28, an elastic strip 29 and a clamping groove 30.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1 to 3, a multi-plate high thermal conductivity high voltage vacuum circuit breaker according to an embodiment of the present invention includes a main body 1, wherein a box body 2 is disposed outside the main body 1; the side wall of the interior of the box body 2 is connected with a sliding plate 3 in a sliding manner, the side walls of the sliding plate 3 and the box body 2 are respectively provided with heat dissipation grooves 4 which are distributed in a staggered manner, a telescopic bag 5 is connected between the end part of the sliding plate 3 and the end surface of the box body 2, the body 1 comprises a working assembly 6 which can generate heat, a heat absorption bag 7 is wrapped outside the working assembly 6, and the heat absorption bag 7 is communicated with the telescopic bag 5 through an air pipe 8; when the circuit breaker in the prior art is used for heat dissipation, an independent power heat dissipation assembly is often required to be installed in the circuit breaker, the space in the box body 2 is occupied, electric energy is wasted, and meanwhile, when the power assembly works, larger heat can be generated, so that the heat dissipation effect of the high-voltage vacuum circuit breaker is influenced; when the circuit breaker is used, heat generated by the working assembly 6 can be transferred into the heat absorption bag 7, so that gas in the heat absorption bag can flow into the telescopic bag 5 through the air pipe 8 after the temperature of the gas is raised, the telescopic bag 5 can drive the sliding plate 3 and the box body 2 to slide relatively after being extended until the heat dissipation groove 4 on the sliding plate 3 is aligned with and communicated with the heat dissipation groove 4 on the side wall of the box body 2, so that the heat dissipation groove 4 on the box body 2 is in an open state, efficient heat dissipation in the box body 2 is facilitated, when the temperature in the box body 2 is reduced, the heat absorption bag 7 and the telescopic bag 5 can synchronously drive the sliding plate 3 to reset in the resetting process, and the sliding plate 3 can seal the heat dissipation groove 4 on the box body 2 again, so that the circuit breaker body 1 can be effectively protected, and the opening and closing of the heat dissipation groove 4 on the side wall of the box body 2 can be controlled by utilizing the heat generated by the short circuiter itself, no longer need establish complicated heat dissipation drive assembly in addition, simplified the inside structure of box 2, it is more energy-conserving and environmental protection, also reduce the produced heat of drive assembly self work simultaneously, improved high-pressure vacuum circuit breaker's radiating effect.
A limiting plate 9 is connected to the bottom surface of the box body 2 corresponding to the outside of the heat absorption bag 7, a plurality of air holes 10 are formed in the limiting plate 9, and a plurality of air permeable cavities 11 are formed in the heat absorption bag 7; when the heat that working component 6 gived off is lower, the bleeder vent 10 that sets up on the heat absorption bag 7 this moment is convenient for the radiating on the working component 6, reduce working component 6 and have the heat absorption bag 7 and be difficult to the effective radiating condition because of the parcel, when the heat that working component 6 sent is higher, heat absorption bag 7 expands gradually thereupon, and make ventilative chamber 11 close gradually under the restriction of limiting plate 9, thereby make the gaseous intensification that can more efficient of the inside of heat absorption bag 7, and radiating groove 4 on the more quick drive box 2 is opened, the radiating effect of circuit breaker has further been improved.
The ventilation holes 10 correspond to the ventilation cavities 11 one by one, the openings of the ventilation holes 10 are gradually reduced from one side close to the heat absorption bag 7 to one side far away from the heat absorption bag 7, one end of the ventilation holes 10 close to the heat absorption bag 7 is provided with a plugging block 12, and a pull rope 13 is connected between the plugging block 12 and the side wall of the ventilation holes 10; when the heat that work subassembly 6 gived off is lower, ventilative chamber 11 and bleeder vent 10 all are in the open mode this moment, thereby be convenient for work subassembly 6 go up thermal effluvium, when the heat that work subassembly 6 sent is higher, can impress inside bleeder vent 10 with blocking piece 12 during the heat absorption bag 7 inflation, make bleeder vent 10 be in the shutoff state, limiting plate 9 can carry out more abundant and comprehensive spacing to the expansion deformation of heat absorption bag 7 this moment, make the gas in the heat absorption bag 7 can be more abundant quick in the flexible bag 5 of inflow, and drive the more quick opening of radiating groove 4 on the box 2.
A magnetic block 14 is arranged on the end face of the box body 2 corresponding to one end of the sliding plate 3 far away from the telescopic bag 5, and the magnetic block 14 can attract the sliding plate 3; when the sliding plate 3 slides under the pushing of the telescopic bag 5, the magnetic block 14 can attract the end part of the sliding plate 3 close to the sliding plate, so that the heat dissipation groove 4 on the box body 2 is opened more quickly and stably, and meanwhile, when the heat absorption bag 7 is reduced in temperature and contracted to reset, the sliding plate 3 can play a role of delaying resetting under the attraction of the magnetic block 14, so that the heat inside the box body 2 can be more fully dissipated.
The magnetic block 14 is connected with the box body 2 in a sliding mode, a telescopic strip 15 made of memory alloy materials is connected between the magnetic block 14 and the end face of the box body 2, the telescopic strip 15 can extend when the temperature rises, and the end portion of the telescopic strip 15 is connected with the working assembly 6 through a heat conducting rod 16; a part of the heat generated by the working assembly 6 is transferred to the telescopic bar 15 through the heat conducting rod 16, and the temperature of the telescopic bar 15 is gradually increased and then extended, and the magnetic block 14 is pushed to be close to the end of the sliding plate 3, so that the attraction of the magnetic block 14 to the sliding plate 3 is improved, the heat dissipation grooves 4 on the box body 2 can be opened more quickly, the closing time of the heat dissipation grooves 4 can be delayed, and the heat inside the box body 2 can be dissipated more fully.
The side wall of the diversion trench 21 is connected with a drum bag 23, the drum bag 23 is communicated with the telescopic bag 5 through a connecting pipe 24, and the side wall of the rotating rod 19 at one side of the drum bag 23 is connected with a pressure rod 25; when the radiating groove 4 on the box 2 is in a closed state, the first fan blade 20 drives the pressure rod 25 on the rotating rod 19 to intermittently extrude the drum bag 23 under the action of external wind force, so that the gas inside the drum membrane is pressed into the telescopic bag 5 after the drum membrane is compressed, the telescopic bag 5 drives the sliding plate 3 to move, the radiating groove 4 on the box 2 is intermittently opened, the inside of the box 2 can be continuously ventilated, and the stable heat dissipation inside the box 2 is facilitated.
A support ring is connected to the position, corresponding to the rotating rod 19, of the top surface of the box body 2, an expansion ring 26 is connected to the side wall of the inner ring of the support ring, a gap is reserved between the expansion ring 26 and the side wall of the rotating rod 19, and the expansion ring 26 is made of a material which expands to a water strip when meeting water; although above-mentioned depression bar 25 and drum 23's cooperation, can drive 2 intermittent type nature of box and open and take a breath, when meetting rainy day, the rainwater can be to box 2 automatic heat dissipation, and no longer need box 2 to dispel the heat through radiating groove 4, if radiating groove 4 is when the rainy day is opened, can make moisture or rainwater in the air flow into inside box 2, thereby influence the life of circuit breaker, this moment through setting up expansion ring 26 in 19 departments of bull stick, make expansion ring 26 expand and with 19 contact extrusion of bull stick after meeting water, thereby can play fixed effect to bull stick 19, this moment flabellum 20 no longer drives radiating groove 4 on the box 2 through rotating and opens, thereby make box 2 can protect circuit breaker body 1 in the rainy day.
Example two:
as shown in fig. 4 to 5, a first comparative example, in which another embodiment of the present invention is: a limiting sleeve 27 is connected to the side wall of the guide groove 21 corresponding to the outside of the drum bag 23, a sliding block 28 connected with the limiting sleeve 27 in a sliding manner is connected to the outer end of the drum bag 23, an arc-shaped surface is arranged at the outer end of the sliding block 28, a group of arc-shaped elastic strips 29 are connected to the inner wall of the limiting sleeve 27, the free ends of the elastic strips 29 bend towards one side of the drum bag 23 and are attached to the sliding block 28, and the width of the elastic strips 29 is gradually increased from the connecting end to the free ends; the outer end of the sliding block 28 can be extruded when the pressing rod 25 rotates, due to the shape of the elastic strip 29, the sliding block 28 can easily slide relative to the elastic strip 29 when sliding into the limiting sleeve 27 and extrude the drum bag 23, but when the sliding block 28 slides out of the limiting sleeve 27, the end of the elastic strip 29 exerts large resistance on the resetting of the sliding block 28, the sliding block 28 can delay sliding out of the limiting sleeve 27, the heat dissipation groove 4 on the box body 2 can be in an open state for a longer time, meanwhile, the collision between the pressing rod 25 and the high frequency of the end of the sliding block 28 is reduced, the situation that the resistance is large when the rotating rod 19 rotates is caused, and the heat exchange effect inside the box body 2 is improved.
A clamping groove 30 clamped with the end part of the elastic strip 29 is formed in the side wall of the sliding block 28, and the shape of the clamping groove 30 is matched with that of the end part of the elastic strip 29; when the slider 28 slides towards the inside of the limiting sleeve 27 under the extrusion of the pressure rod 25, the slider 28 can drive the elastic strip 29 to easily break away from and slide from the inside of the clamping groove 30, and when the slider 28 resets under the action of the drum bag 23, the clamping groove 30 can apply large resistance to the end part of the passing elastic strip 29, so that the resetting time of the slider 28 is further prolonged, and the heat dissipation effect inside the box body 2 is improved.
The working principle is as follows: when the circuit breaker is used, heat generated by the working assembly 6 can be transferred into the heat absorption bag 7, so that gas in the heat absorption bag can flow into the telescopic bag 5 through the air pipe 8 after the temperature of the gas is raised, the telescopic bag 5 drives the sliding plate 3 and the box body 2 to slide relatively after being extended until the heat dissipation groove 4 on the sliding plate 3 is aligned with and communicated with the heat dissipation groove 4 on the side wall of the box body 2, so that the heat dissipation groove 4 on the box body 2 is in an open state, efficient heat dissipation in the box body 2 is facilitated, when the temperature in the box body 2 is reduced, the heat absorption bag 7 and the telescopic bag 5 synchronously drive the sliding plate 3 to reset in the resetting process, and the sliding plate 3 seals the heat dissipation groove 4 on the box body 2 again, so that the circuit breaker body 1 can be effectively protected, and the opening and closing of the heat dissipation groove 4 on the side wall of the box body 2 are controlled by utilizing the heat generated by the short circuiter itself, no complex heat dissipation driving assembly is needed, the structure inside the box body 2 is simplified, energy is saved, environment is protected, heat generated by the driving assembly during working is reduced, and the heat dissipation effect of the high-voltage vacuum circuit breaker is improved; when the heat emitted by the working assembly 6 is low, the air holes 10 formed in the heat absorption bag 7 facilitate the heat emission on the working assembly 6, the situation that the working assembly 6 is difficult to effectively radiate heat due to the fact that the heat absorption bag 7 is wrapped on the working assembly 6 is reduced, when the heat emitted by the working assembly 6 is high, the heat absorption bag 7 gradually expands, and the air ventilation cavity 11 is gradually closed under the limitation of the limiting plate 9, so that the temperature of the gas in the heat absorption bag 7 can be efficiently increased, the heat dissipation groove 4 in the box body 2 is driven to be opened more quickly, and the heat dissipation effect of the circuit breaker is further improved; when the heat emitted by the working assembly 6 is low, the ventilating cavity 11 and the ventilating hole 10 are both in an open state, so that the heat on the working assembly 6 can be conveniently dissipated, when the heat emitted by the working assembly 6 is high, the blocking block 12 can be pressed into the ventilating hole 10 when the heat absorption bag 7 expands, so that the ventilating hole 10 is in a blocking state, and the limiting plate 9 can more fully and comprehensively limit the expansion deformation of the heat absorption bag 7, so that the gas in the heat absorption bag 7 can more fully and quickly flow into the telescopic bag 5, and the heat dissipation groove 4 on the box body 2 is driven to be more quickly opened; when the sliding plate 3 slides under the pushing of the telescopic bag 5, the magnetic block 14 can attract the end part of the sliding plate 3 close to the sliding plate, so that the heat dissipation groove 4 on the box body 2 is opened more quickly and stably, and meanwhile, when the heat absorption bag 7 is reduced in temperature and contracted to reset, the sliding plate 3 can play a role of delaying reset under the attraction of the magnetic block 14, so that the heat in the box body 2 can be more fully dissipated; a part of heat generated by the working assembly 6 is transferred to the telescopic strips 15 through the heat conducting rods 16, the temperature of the telescopic strips 15 is gradually increased and then is extended, the magnetic blocks 14 are pushed to be close to the end parts of the sliding plates 3, the attraction of the magnetic blocks 14 to the sliding plates 3 is improved, so that the heat dissipation grooves 4 on the box body 2 can be opened more quickly, the closing time of the heat dissipation grooves 4 can be delayed, and the heat in the box body 2 can be dissipated more fully; when the heat dissipation groove 4 on the box body 2 is in an open state, the first fan blade 20 can be driven to rotate when the air comes from the outside of the box body 2, so that the first fan blade 20 can drive the second fan blade 22 at the bottom end to rotate through the rotating rod 19, and the second fan blade 22 can enable the air at the position of the flow guide groove 21 to flow from top to bottom when rotating, so that the external air can flow in from the heat dissipation groove 4 at the top end of the partition plate 17 and flow out from the heat dissipation groove 4 at the bottom of the partition plate 17 after flowing to the bottom of the box body 2, the heat in the box body 2 can be taken out, and the heat dissipation efficiency of the circuit breaker is further improved; when the heat dissipation groove 4 on the box body 2 is in a closed state, the first fan blade 20 drives the pressure rod 25 on the rotating rod 19 to intermittently extrude the drum bag 23 under the action of external wind force, so that the drum membrane is compressed and then the gas in the drum membrane is pressed into the telescopic bag 5, the telescopic bag 5 drives the sliding plate 3 to move, and the heat dissipation groove 4 on the box body 2 is intermittently opened, so that the inside of the box body 2 can be continuously ventilated, and the stable heat dissipation in the box body 2 is facilitated; although the pressing rod 25 and the drum bag 23 are matched to drive the box body 2 to be intermittently opened and ventilate, when the circuit breaker is in a rainy day, rainwater can automatically dissipate heat of the box body 2, the box body 2 is not required to dissipate heat through the heat dissipation groove 4, if the heat dissipation groove 4 is opened in the rainy day, moisture or rainwater in the air can flow into the box body 2, so that the service life of the circuit breaker is influenced, at the moment, the expansion ring 26 is arranged at the rotating rod 19, so that the expansion ring 26 expands after encountering water and is in contact with and extruded with the rotating rod 19, so that a fixing effect can be achieved on the rotating rod 19, at the moment, the first fan blade 20 is not rotated to drive the heat dissipation groove 4 on the box body 2 to be opened, and the box body 2 can protect the circuit breaker body 1 in the rainy day; the outer end of the sliding block 28 can be extruded when the pressing rod 25 rotates, due to the shape of the elastic strip 29, the sliding block 28 can easily slide relative to the elastic strip 29 when sliding into the limiting sleeve 27 and extrude the drum bag 23, but when the sliding block 28 slides out of the limiting sleeve 27, the end part of the elastic strip 29 exerts large resistance on the resetting of the sliding block 28, so that the sliding block 28 slides out of the limiting sleeve 27 in a delayed manner, the heat dissipation groove 4 on the box body 2 can be in an open state for a longer time, and meanwhile, the high-frequency collision between the pressing rod 25 and the end part of the sliding block 28 is reduced, the situation that the resistance is large when the rotating rod 19 rotates is caused, and the heat exchange effect inside the box body 2 is improved; when the slider 28 slides towards the inside of the limiting sleeve 27 under the extrusion of the pressure rod 25, the slider 28 can drive the elastic strip 29 to easily break away from and slide from the inside of the clamping groove 30, and when the slider 28 resets under the action of the drum bag 23, the clamping groove 30 can apply large resistance to the end part of the passing elastic strip 29, so that the resetting time of the slider 28 is further prolonged, and the heat dissipation effect inside the box body 2 is improved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A multi-plate high-heat-conductivity high-voltage vacuum circuit breaker comprises a body (1), wherein a box body (2) is arranged outside the body (1); the method is characterized in that: the utility model discloses a refrigerator, including box (2), body (1), heat dissipation bag (6), heat absorption bag (7) are located sliding connection and have slide (3) to the inside lateral wall of box (2), set up heat dissipation groove (4) that the dislocation distributes on the lateral wall of slide (3) and box (2) respectively, be connected with flexible bag (5) between the tip of slide (3) and the terminal surface of box (2), body (1) is including work subassembly (6) that can generate heat, the outside parcel of work subassembly (6) has heat absorption bag (7), be linked together through trachea (8) between heat absorption bag (7) and flexible bag (5).
2. The multiple-plate high thermal conductivity type high voltage vacuum circuit breaker according to claim 1, wherein: the box body (2) bottom surface that the heat absorption bag (7) outside corresponds is connected with limiting plate (9), a plurality of bleeder vents (10) have been seted up on limiting plate (9), be provided with a plurality of ventilative chambeies (11) on heat absorption bag (7).
3. The multiple-plate high thermal conductivity type high voltage vacuum circuit breaker according to claim 2, wherein: bleeder vent (10) and ventilative chamber (11) one-to-one, bleeder vent (10) are reduced to one side opening of keeping away from heat absorption bag (7) by one side that is close to heat absorption bag (7), one end that bleeder vent (10) are close to heat absorption bag (7) is equipped with plugging block (12), be connected with stay cord (13) between the lateral wall of plugging block (12) and bleeder vent (10).
4. The multiple-plate high thermal conductivity type high voltage vacuum circuit breaker according to claim 1, wherein: the end face, corresponding to one end of the sliding plate (3) far away from the telescopic bag (5), of the box body (2) is provided with a magnetic block (14), and the magnetic block (14) can attract the sliding plate (3).
5. The multiple-plate high thermal conductivity type high voltage vacuum circuit breaker according to claim 4, wherein: the magnetic block (14) is connected with the box body (2) in a sliding mode, a telescopic strip (15) made of memory alloy materials is connected between the magnetic block (14) and the end face of the box body (2), the telescopic strip (15) can extend when the temperature rises, and the end portion of the telescopic strip (15) is connected with the working assembly (6) through a heat conducting rod (16).
6. The multiple-plate high thermal conductivity type high voltage vacuum circuit breaker according to claim 1, wherein: body (1) lateral wall all around and box (2) lateral wall that corresponds between be connected with baffle (17) respectively, body (1) top is connected with partition layer (18) of laminating mutually with box (2) top surface, baffle (17) top is rotated through bull stick (19) and is connected with flabellum (20), guiding gutter (21) have been seted up on baffle (17) that bull stick (19) bottom corresponds, just bull stick (19) bottom is stretched into to guiding gutter (21) inside and is connected with No. two flabellum (22).
7. The multiple-plate high thermal conductivity type high voltage vacuum circuit breaker according to claim 6, wherein: the side wall of the diversion trench (21) is connected with a drum bag (23), the drum bag (23) is communicated with the telescopic bag (5) through a connecting pipe (24), and the side wall of the rotating rod (19) on one side of the drum bag (23) is connected with a pressure rod (25).
8. The multiple-plate high thermal conductivity type high voltage vacuum circuit breaker according to claim 7, wherein: the corresponding position department of box (2) top surface and bull stick (19) is connected with the support ring, be connected with expansion ring (26) on the inner ring lateral wall of support ring, there is the clearance between expansion ring (26) and bull stick (19) lateral wall, just expansion ring (26) are made to the water strip material by meeting water inflation.
9. The multiple-plate high thermal conductivity type high voltage vacuum circuit breaker according to claim 7, wherein: be connected with stop collar (27) on blast groove (21) lateral wall that drum bag (23) outside corresponds, drum bag (23) outer end is connected with slider (28) that link to each other with stop collar (27) slip, slider (28) outer end is provided with the arcwall face, be connected with a set of curved elasticity strip (29) on the inner wall of stop collar (27), the free end of elasticity strip (29) is laminated towards drum bag (23) one side bending and with slider (28) mutually, elasticity strip (29) are by the link to free end width crescent.
10. The multiple-plate high thermal conductivity type high voltage vacuum circuit breaker according to claim 9, wherein: the side wall of the sliding block (28) is provided with a clamping groove (30) clamped with the end part of the elastic strip (29), and the shape of the clamping groove (30) is matched with that of the end part of the elastic strip (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210404071.2A CN114639570A (en) | 2022-04-18 | 2022-04-18 | Multi-plate high-heat-conduction high-voltage vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210404071.2A CN114639570A (en) | 2022-04-18 | 2022-04-18 | Multi-plate high-heat-conduction high-voltage vacuum circuit breaker |
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| Publication Number | Publication Date |
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| CN114639570A true CN114639570A (en) | 2022-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210404071.2A Pending CN114639570A (en) | 2022-04-18 | 2022-04-18 | Multi-plate high-heat-conduction high-voltage vacuum circuit breaker |
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| CN (1) | CN114639570A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117498193A (en) * | 2023-10-30 | 2024-02-02 | 湖北华亿电气集团有限公司 | Safety protection device for high-voltage complete switch cabinet |
-
2022
- 2022-04-18 CN CN202210404071.2A patent/CN114639570A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117498193A (en) * | 2023-10-30 | 2024-02-02 | 湖北华亿电气集团有限公司 | Safety protection device for high-voltage complete switch cabinet |
| CN117498193B (en) * | 2023-10-30 | 2024-05-10 | 湖北华亿电气集团有限公司 | Safety protection device for high-voltage complete switch cabinet |
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