CN101740272A - Mechanical high-voltage circuit breaker with short circuit self-locking function - Google Patents
Mechanical high-voltage circuit breaker with short circuit self-locking function Download PDFInfo
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- CN101740272A CN101740272A CN200910215606A CN200910215606A CN101740272A CN 101740272 A CN101740272 A CN 101740272A CN 200910215606 A CN200910215606 A CN 200910215606A CN 200910215606 A CN200910215606 A CN 200910215606A CN 101740272 A CN101740272 A CN 101740272A
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- self
- short circuit
- circuit breaker
- locking function
- voltage circuit
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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
- H01H33/666—Operating arrangements
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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
- H01H33/666—Operating arrangements
- H01H2033/6667—Details concerning lever type driving rod arrangements
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Abstract
The invention relates to a mechanical high-voltage circuit breaker with a short circuit self-locking function, which comprises a high-voltage circuit breaker body, a short circuit detecting unit, a short circuit action trigger mechanism and a mechanical self-locking mechanism. The short circuit detecting unit is used for detecting whether a phase line of the high-voltage circuit breaker body has a short circuit failure and generating a breaking signal when the short circuit failure occurs; the short circuit action trigger mechanism is connected with a breaking mechanism of the high-voltage circuit breaker body and is used for triggering the breaking mechanism to generate a breaking action after receiving the breaking signal; and the mechanical self-locking mechanism ensures that the breaking mechanism cannot automatically reset.
Description
Technical field
What the present invention relates to is a kind of primary cut-out, particularly be a kind of mechanical high-voltage circuit breaker with short circuit self-locking function.
Background technology
Primary cut-out (or claiming high-voltage switch gear) is the main electric control appliance of electric substation, has arc quenching characteristic, and when system normally moved, it can cut off and connect the zero load and the load current of circuit and various electric equipments; When system broke down, it and relaying protection cooperated, and energy is the disengagement failure electric current rapidly, and to prevent expansion accident scope therefore, the quality of primary cut-out work directly has influence on the safe operation of electric power system; The primary cut-out kind is a lot, and the difference by its arc extinguishing can be divided into: oil circuit breaker (bulk-oil circuit-breaker, oil-minimum breaker), sulfur hexafluoride breaker (SF6 circuit breaker), vacuum circuit-breaker, compressed-air circuit breaker etc.
Existing primary cut-out is sayed from function, state in the time of can't short trouble occurring to electrical network shows, and under the situation that does not have to get rid of at short trouble, if false switching causes very big infringement, what is more important serious threat electric power netting safe running can for power consumption equipment and primary cut-out itself.
In view of above-mentioned defective, creator of the present invention is through research and practice have obtained this creation finally for a long time.
Summary of the invention
The objective of the invention is to, provide a kind of mechanical high-voltage circuit breaker, in order to overcome above-mentioned defective with short circuit self-locking function.
For achieving the above object, the technical solution used in the present invention is, a kind of mechanical high-voltage circuit breaker with short circuit self-locking function is provided, and it comprises: a primary cut-out body also comprises:
One short-circuit detecting unit, whether it short trouble occurs in order to detect primary cut-out body institute phase line, and when being short-circuited fault, produces a breaking signal;
One short circuit action triggers mechanism, it is connected with disjunction mechanism in the described primary cut-out body, when receiving described breaking signal, triggers described disjunction mechanism and produces the disjunction action;
One mechanical type self-locking mechanism, it can not automatically reset described disjunction mechanism.
Wherein, described primary cut-out body comprises:
One housing;
Described housing is provided with at least one insulation vacuum, the outer end of described insulation vacuum is respectively equipped with a leading-out terminal that is connected with outside line and an end of incoming cables, and described leading-out terminal and end of incoming cables are at described insulation vacuum inner a corresponding movable contact piece and a stationary contact piece respectively;
One disjunction mechanism, it is arranged in the described housing, and it comprises: a power unit and a motor unit; Wherein,
Realize the feed motion or the disjunction action of described movable contact piece and described stationary contact piece when described motor unit is subjected to triggering, and then realize the conducting or the disconnection of circuit;
Described power unit is in order to provide the power of instantaneous disjunction and combined floodgate to described motor unit.
Wherein, described motor unit comprises:
Main gangbar,
Divide STATEMENT OF FEDERALLY SPONSORED, itself and described main gangbar are slidingly connected, and STATEMENT OF FEDERALLY SPONSORED was corresponding with described movable contact piece in described minute.
Wherein, described power unit is an elastic energy storage mechanism, and it comprises:
One rocking handle,
The two-stage gear transmission structure, described rocking handle combines with described primary pinion, by described rocking handle, described primary pinion is rotated;
One swinging block, it combines with described secondary gears, and the upper end is connected with described main gangbar;
One cam, itself and described swinging block are coupling;
One jacking block, pushing tow is at described swinging block lateral margin;
At least one first back-moving spring, it is connected with described cam, is stretched along with the rotation of cam;
At least one second back-moving spring, it is connected with an end of housing, and its other end is connected with described main gangbar.
Wherein, described short-circuit detecting unit comprises:
Be arranged on current acquisition subelement on each described phase line, in order to gather the current signal on every phase line;
One controller that shoves, it is connected respectively at described current acquisition subelement, compares in order to a current signal on arbitrary phase line that will collect and a threshold value, exports a triggering signal when short circuit occurring.
Wherein, described short circuit action triggers mechanism is an electromagnet, and its solenoid is connected with the described controller that shoves, and its armature end is corresponding with a trigger end of described jacking block.
Have numerous embodiments for the mechanical type self-locking mechanism and satisfy demand of the present invention, first kind of described mechanical type self-locking mechanism comprises:
One angled slide block;
One back-moving spring, it is set on the described angled slide block;
One storage tank, described angled slide block and described back-moving spring are arranged on wherein, and described storage tank is provided with a guide groove, and it is corresponding with described armature;
Has a release end on the described angled slide block, in order to manual release.
Second kind of described mechanical type self-locking mechanism comprises:
One guide vane end stop, it can embed in the caulking groove of described armature end setting;
One back-moving spring, it places between described guide vane end stop and the housing, in order to realize resetting of described guide vane end stop;
One pull bar, itself and described guide vane end stop Joint are in order to realize manual release.
The third described mechanical type self-locking mechanism comprises:
One guiding cell body;
One triggers piece, and it places in the described guiding cell body, in order to corresponding with the trigger end of described jacking block;
One first back-moving spring, its place in the described guiding cell body and described triggering piece between;
One guide vane end stop, it can embed in the caulking groove of described triggering piece setting;
One second back-moving spring, it places between described guide vane end stop and the housing, with so that described guide vane end stop reset;
One pull bar, itself and described guide vane end stop Joint are in order to realize manual release.
The 4th kind of described mechanical type self-locking mechanism comprises:
One guiding cell body, the bottom is provided with caulking groove in the described guiding cell body;
One L type triggers piece, and it places in the described guiding cell body, and its first end is in order to corresponding with the trigger end of described jacking block, and its bottom is provided with a projection, and is corresponding with described caulking groove;
One first back-moving spring, it places described guiding cell body and described L type to trigger between piece first end;
One second back-moving spring, it places described L type to trigger between piece second end and the housing, in order to realize that described L type is triggered resetting of piece;
One pull bar, itself and described L type trigger the piece second end Joint, in order to realize manual release.
The 5th kind of described mechanical type self-locking mechanism comprises:
One hook, its first end hangs in the hole on the described jacking block trigger end, and its other end can stretch out along the hole on the described housing;
One back-moving spring, it places between described hook and the described housing.
Wherein, described current acquisition subelement be current transformer or copper-manganese sheet one of them.
Preferable, also comprise: communication unit, it is connected with the described controller that shoves, and when unusual condition occurring, information is sent to a data receiver.
Beneficial effect of the present invention compared with the prior art is: the short trouble to high-tension line detects, immediately disjunction circuit, and can carry out self-locking to the state of circuit breaker, the fail safe of electricity consumption is provided,, can have realized the intensive management of electricity consumption by the information transmission of communication unit, help very first time unshorting fault, and had the short circuit indication, made management of power use department clear and definite, the reason that circuit breaker disconnects.
Description of drawings
Fig. 1 has the external structure schematic diagram of the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention;
Fig. 2 has the principle cutaway view of structure of insulation vacuum of the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention;
Fig. 3 has the cutaway view of the disjunction mechanism of body in the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention;
Fig. 4 has the three-dimensional exploded view of the disjunction mechanism of body in the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention;
Fig. 5 A has the non-self-locking state figure of mechanical type self-locking mechanism embodiment one in the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention;
Fig. 5 B has the self-locking state figure of mechanical type self-locking mechanism embodiment one in the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention;
Fig. 6 A has the non-self-locking state figure of mechanical type self-locking mechanism embodiment two in the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention;
Fig. 6 B has the self-locking state figure of mechanical type self-locking mechanism embodiment two in the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention;
Fig. 7 A has the non-self-locking state figure of mechanical type self-locking mechanism embodiment three in the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention;
Fig. 7 B has the self-locking state figure of mechanical type self-locking mechanism embodiment three in the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention;
Fig. 8 A has the non-self-locking state figure of mechanical type self-locking mechanism embodiment four in the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention;
Fig. 8 B has the self-locking state figure of mechanical type self-locking mechanism embodiment four in the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention;
Fig. 9 A has the non-self-locking state figure of mechanical type self-locking mechanism embodiment five in the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention;
Fig. 9 B has the self-locking state figure of mechanical type self-locking mechanism embodiment five in the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention;
Figure 10 has circuit part schematic diagram in the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
See also shown in Figure 1ly, it has the external structure schematic diagram of the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention; Described mechanical high-voltage circuit breaker with short circuit self-locking function, it comprises: a primary cut-out body, promptly realize the access and the output with the high-tension electricity route of existing capability, also comprise following functional module for realizing short circuit self-locking function of the present invention:
One short-circuit detecting unit, whether it short trouble occurs in order to detect primary cut-out body place phase line, and when being short-circuited fault, produces a breaking signal;
One short circuit action triggers mechanism, it is connected with disjunction mechanism in the described primary cut-out body, when receiving described breaking signal, triggers described disjunction mechanism and produces the disjunction action;
One mechanical type self-locking mechanism, it can not automatically reset described disjunction mechanism.Design philosophy of the present invention is suitable for existing primary cut-out, as oil circuit breaker (bulk-oil circuit-breaker, oil-minimum breaker), sulfur hexafluoride breaker (SF6 circuit breaker), vacuum circuit-breaker, compressed-air circuit breaker etc.
Wherein, described primary cut-out body comprises: a housing 10, described housing 10 is provided with at least one insulation vacuum 2, because high-tension line is three-phase normally, therefore three insulation vacuum 2 are arranged usually, and the outer end of described insulation vacuum 2 is respectively equipped with a leading-out terminal 21 and an end of incoming cables 22 that is connected with the external power circuit; One disjunction mechanism, it is arranged in the described housing, and in order to realize the separation and the feed motion of primary cut-out, it comprises: a power unit and a motor unit.
Consult shown in Figure 2ly, it has the structural principle cutaway view of insulation vacuum of the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention; Described leading-out terminal 21 and end of incoming cables 22 are at described insulation vacuum 2 inner a corresponding movable contact piece 24 and stationary contact pieces 23 respectively; And described short-circuit detecting unit promptly is set in place on its inner circuit board 32, certainly this only is an embodiment, also can be according to the actual needs, those skilled in the art are placed in the housing, simultaneously the structure of insulation vacuum of the present invention can have concrete conversion according to actual conditions, is that movable contact piece 24 is with 23 contacts of stationary contact piece with separate the principle that realizes circuit on-off but can not break away from above-mentioned principle type structure.
Consult Fig. 3 and shown in Figure 4, it is respectively the cutaway view that the present invention has the disjunction mechanism of body in the mechanical high-voltage circuit breaker of short circuit self-locking function, and the present invention has the three-dimensional exploded view of the disjunction mechanism of body in the mechanical high-voltage circuit breaker of short circuit self-locking function; Wherein, triggered for the motor unit in the described disjunction mechanism, and then realize the feed motion or the disjunction action of described movable contact piece 24 and described stationary contact piece 23, final conducting or the off-state that realizes circuit, since high-tension line together with requiring to finish in moment with disjunction, therefore be need be very big energy and power; And described power unit is in order to provide the power of instantaneous disjunction and combined floodgate to described motor unit.
Described motor unit comprises:
A main gangbar 40, it vertically is arranged in the described housing 10, in order to can realize one along action longitudinally in the housing, is provided with one between itself and the housing bottom and supports sliding part; Divide STATEMENT OF FEDERALLY SPONSORED 41, in the present embodiment be three groups (corresponding three-phases) its be slidingly connected with described main gangbar 40 respectively, concrete execution mode can be that described minute STATEMENT OF FEDERALLY SPONSORED 41 is provided with arc chute, described main gangbar 40 is installed with slide bar, described slide bar 41 can slide in the arc chute of described minute STATEMENT OF FEDERALLY SPONSORED 41, thereby when described main gangbar 40 lengthwise movements, pushing tow STATEMENT OF FEDERALLY SPONSORED 41 swings in described minute, and then make main gangbar 40 parts that are positioned at insulation vacuum 2 inside or the parts that are attached thereto produce action up and down, combine or disjunction between the final described movable contact piece 24 of pushing tow and the described stationary contact piece 23.
Wherein, described power unit is an elastic energy storage mechanism, and it comprises:
One rocking handle is arranged at the outside of housing, and the staff realizes energy storage (referring to shown in Figure 1) by the described rocking handle of swing; The two-stage gear transmission structure, i.e. primary pinion 43 and secondary gears 42, described rocking handle combines with described primary pinion 43, by the swing of described rocking handle, described primary pinion 43 is rotated; One swinging block 44, it combines with described secondary gears 42, and the upper end is connected with described main gangbar 40, and the number of teeth of significant described secondary gears 42 is the numbers of teeth much larger than primary pinion 43; One cam 46, itself and described swinging block 44 are coupling; Along with the spring leaf (not shown) of swinging block 44 inside is wound, thereby rotate; One jacking block (not shown), pushing tow be at described swinging block 44 lateral margins, thereby make the described swinging block 44 can be owing to the effect of the elastic restoring force of spring leaf is rotated; At least one first back-moving spring 45 is an example with a spring here, and it is connected with described cam 46, is stretched along with the rotation of cam 46; At least one second back-moving spring 471,472, here be example with two springs, it is connected with an end of described housing 10 respectively, its other end is connected with described main gangbar 40 by connecting rod, and wherein the coefficient of elasticity of first back-moving spring 45 is greater than the coefficient of elasticity of second back-moving spring 471,472.
Wherein, the usefulness electrical components such as short-circuit detecting unit on the described circuit board 32 can be by being provided with a kind of execution mode of battery 33 as power supply thereon.Described short circuit action triggers mechanism is an electromagnet 51, its armature end is corresponding with a trigger end 441 of described jacking block, at the armature end pushing tow of described electromagnet 51 during to described trigger end 441, described jacking block separates with described swinging block 44, thereby effect in the elastic restoring force of contained spring sheet, and under the effect of second back-moving spring 471,472 that is drawn high, described main gangbar 40 produces vertically action (as to first side), thereby described the generation from STATEMENT OF FEDERALLY SPONSORED 41 moved, finally realize the disjunction action of primary cut-out.
If there is not mechanical self-latching mechanism this moment, the user wants to close a floodgate, then need to continue the described rocking handle of swing, thereby described first back-moving spring 45 is stretched, and the spring leaf in the described swinging block 44 is again in energy storage, therefore described first back-moving spring 45 spurs described main gangbar 40 and produces vertically action (as to second side) when triggering switch knob, thereby described the generation from STATEMENT OF FEDERALLY SPONSORED 41 moved, and finally realizes the feed motion of primary cut-out.
See also shown in Figure 10ly, it has circuit part schematic diagram in the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention.Described short-circuit detecting unit comprises:
Be arranged on current acquisition subelement on each described phase line, in order to gather the current signal on every phase line; What current acquisition subelement described here adopted is three current transformers that are positioned on the phase line, and the copper-manganese sheet 31 that can certainly adopt as Fig. 2 is as the current acquisition subelement; Its main purpose remains detected current signal is converted to voltage signal;
One controller that shoves, it is connected respectively at described current acquisition subelement, compares in order to a current signal on arbitrary phase line that will collect and a threshold value, exports a triggering signal when short circuit occurring; The solenoid of described short circuit action triggers mechanism electromagnetic iron 51 is connected with the described controller that shoves, and by receiving described triggering signal, moves thereby described armature is produced.
Has the mechanical type self-locking mechanism in the mechanical high-voltage circuit breaker of short circuit self-locking function for the present invention, it is a very important structure, because his existence, make when short trouble takes place, described primary cut-out can not close at once, must could realize the action of combined floodgate by release, therefore improve fail safe.
At the mechanical type self-locking mechanism, we have designed five kinds of embodiment.
See also shown in Fig. 5 A and Fig. 5 B, it is respectively the non-self-locking state figure that the present invention has mechanical type self-locking mechanism embodiment one in the mechanical high-voltage circuit breaker of short circuit self-locking function; And the present invention has the self-locking state figure of mechanical type self-locking mechanism embodiment one in the mechanical high-voltage circuit breaker of short circuit self-locking function; First kind of described mechanical type self-locking mechanism comprises:
One angled slide block 61; One back-moving spring 62, it is set on the described angled slide block 61; One storage tank 64, described angled slide block 61 and described back-moving spring 62 are arranged in the described storage tank 64, and described angled slide block 61 can slide in described storage tank 64, and described storage tank 64 is provided with a guide groove, and it is corresponding with described armature terminal 512; When described electromagnet 51 is triggered, described armature end 511 stretches out the trigger end 441 of the described jacking block of pushing tow, thereby make described armature end 512 along described guide groove to internal motion, described angled slide block 61 stretches out under the effect of back-moving spring 62, thereby the end face of one side and described armature end 512 is leant, thereby make its armature end 511 can only be in pushing tow state always the trigger end 441 of described jacking block;
Has a release end on the described angled slide block 61, so the change of the release end position on the angled slide block 61 is also given and indicative function of management of power use person, the action of promptly this time opening circuit is caused by short circuit, has only the described release end of artificial promotion, thereby described angled slide block 61 is inwardly regained to be regained, make resetting of described armature end 512, could realize release armature.
See also shown in Fig. 6 A and Fig. 6 B, it is respectively the non-self-locking state figure that the present invention has mechanical type self-locking mechanism embodiment two in the mechanical high-voltage circuit breaker of short circuit self-locking function; And the present invention has the self-locking state figure of mechanical type self-locking mechanism embodiment two in the mechanical high-voltage circuit breaker of short circuit self-locking function; Second kind of described mechanical type self-locking mechanism comprises:
One guide vane end stop 61, it can embed in the caulking groove of described armature end 511 settings, described armature end 511 is provided with two caulking grooves 5111, one of them caulking groove 5111 corresponding normal state, another corresponding triggering state, described guide vane end stop 61 has a slope, only can make described armature 51 to single direction motion;
One back-moving spring 63, it places between described guide vane end stop 61 and the housing 10, in order to realize resetting of described guide vane end stop 61, promptly because after described armature end 511 stretches out, move on the described guide vane end stop 61, make 63 compressions of described back-moving spring, and when described caulking groove 5111 occurring, described guide vane end stop 61 is headed into wherein;
One pull bar 62, itself and described guide vane end stop 61 Joints have only the people for mentioning described pull bar 62, thereby described guide vane end stop 61 are regained, and could realize the release to armature.
Consult shown in Fig. 7 A and Fig. 7 B, it is respectively the non-self-locking state figure that the present invention has mechanical type self-locking mechanism embodiment three in the mechanical high-voltage circuit breaker of short circuit self-locking function; And the present invention has the self-locking state figure of mechanical type self-locking mechanism embodiment three in the mechanical high-voltage circuit breaker of short circuit self-locking function; The third described mechanical type self-locking mechanism comprises:
One guiding cell body 61; " three-way pipe " in its similar hot-water heating engineering field, itself and described housing 10 Joints;
One triggers piece 66, and it places in the described guiding cell body 61, and can move therein, and an end of described triggering piece 66 is in order to the trigger end 441 of the described jacking block of pushing tow, and wherein, described triggering piece 66 is provided with caulking groove 661;
One first back-moving spring 65, it places in the described guiding cell body 61 and between the described triggering piece 66, and when the trigger end 441 of the described jacking block of an end pushing tow of described triggering piece 66, it is compressed, when described armature end 511 is regained, can realize resetting of described triggering piece 66;
One guide vane end stop 62, it can embed in the caulking groove 661 of described triggering piece 66 settings;
One second back-moving spring 64, it places between described guide vane end stop 61 and the housing 10, with so that described guide vane end stop 61 reset; Promptly, make described back-moving spring 64 compressions, and finally make described guide vane end stop 61 embed in the described caulking groove 661 owing to after described armature end 511 stretches out, move on the described guide vane end stop 61;
One pull bar 63, itself and described guide vane end stop 62 Joints, so the change of pull bar 63 positions is also given and indicative function of management of power use person, the action of promptly this time opening circuit is caused by short circuit, has only the people for mentioning described pull bar 63, thereby described guide vane end stop 62 is regained, could be realized release armature.
Consult shown in Fig. 8 A and Fig. 8 B, it is respectively the non-self-locking state figure that the present invention has mechanical type self-locking mechanism embodiment four in the mechanical high-voltage circuit breaker of short circuit self-locking function; And the present invention has the self-locking state figure of mechanical type self-locking mechanism embodiment four in the mechanical high-voltage circuit breaker of short circuit self-locking function; The 4th kind of described mechanical type self-locking mechanism comprises:
One guiding cell body 61, the bottom is provided with caulking groove 611 in the described guiding cell body 61;
One L type triggers piece 64, and it places in the described guiding cell body 61, and its first end is in order to corresponding with the trigger end 441 of described jacking block, and its bottom is provided with a projection, and is corresponding with described caulking groove 611, can embed wherein;
One first back-moving spring 65, it places described guiding cell body 61 and described L type to trigger between piece 64 first ends;
One second back-moving spring 63, it places described L type to trigger between piece 64 second ends and the housing 10, in order to realize that described L type is triggered resetting of piece 63; Promptly, make 63 compressions of described second back-moving spring, and when described caulking groove 611 occurring, described L type is triggered piece 64 head into wherein because after described armature end 511 stretched out, described L type triggered on the piece 64 and moves;
One pull bar 62, itself and described L type trigger piece 64 second end Joints, so the change of pull bar 62 positions is also given and indicative function of management of power use person, the action of promptly this time opening circuit is caused by short circuit, has only the people for mentioning described pull bar 62, regain thereby make described L type trigger piece 64, could realize release armature.
Consult shown in Fig. 9 A and Fig. 9 B, it is respectively the non-self-locking state figure that the present invention has mechanical type self-locking mechanism embodiment five in the mechanical high-voltage circuit breaker of short circuit self-locking function; And the present invention has the self-locking state figure of mechanical type self-locking mechanism embodiment five in the mechanical high-voltage circuit breaker of short circuit self-locking function; The 5th kind of described mechanical type self-locking mechanism comprises:
One hook 61, its first end hang in the hole that is provided with on the trigger end 441 of described jacking block, and its other end can stretch out along the hole on the described housing 10;
One back-moving spring 62, it places between the affixed junction of the neutral place at described hook middle part and and described housing 10, promptly on the trigger end 441 of first end of described hook 61 and described jacking block, the hole after separating is set, described hook 61 is stretched out along hole on the housing 10, thereby make the trigger end 441 of the described first end pushing tow, it can not be resetted at described described jacking block; So linking up with 61 the other end stretches out along the hole on the described housing 10, the change of position is also given and indicative function of management of power use person, the action of promptly this time opening circuit is caused by short circuit, that is to say whether the realization of present embodiment auto-lock function and armature reset irrelevant.
Since must be artificial when the mechanical high-voltage circuit breaker with short circuit self-locking function of above-mentioned correspondence is short-circuited fault carry out release, describedly need short circuit problem occur to which primary cut-out and detect, therefore the application's short-circuit detecting unit can combine with a communication unit, be connected with the described controller that shoves from the described communication unit of realizing of mode, when unusual condition occurring, it can obtain described triggering signal, and the information of being converted into sends to a data receiver then.This communication mode can be that wired mode also can be a wireless mode.
The above only is preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limited, revise, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (13)
1. mechanical high-voltage circuit breaker with short circuit self-locking function, it comprises: a primary cut-out body, it is characterized in that, also comprise:
One short-circuit detecting unit, whether it short trouble occurs in order to detect primary cut-out body place phase line, and when being short-circuited fault, produces a breaking signal;
One short circuit action triggers mechanism, it is connected with disjunction mechanism in the described primary cut-out body, when receiving described breaking signal, triggers described disjunction mechanism and produces the disjunction action;
One mechanical type self-locking mechanism, it can not automatically reset described disjunction mechanism.
2. the mechanical high-voltage circuit breaker with short circuit self-locking function according to claim 1 is characterized in that, described primary cut-out body comprises:
One housing;
Described housing is provided with at least one insulation vacuum, the outer end of described insulation vacuum is respectively equipped with a leading-out terminal and an end of incoming cables that is connected with outside line, and described leading-out terminal and end of incoming cables are at described insulation vacuum inner a corresponding movable contact piece and a stationary contact piece respectively;
One disjunction mechanism, it is arranged in the described housing, and it comprises: a power unit and a motor unit; Wherein,
Realize the feed motion or the disjunction action of described movable contact piece and described stationary contact piece when described motor unit is subjected to triggering, and then realize the conducting or the disconnection of circuit;
Described power unit makes instantaneous disjunction of described motor unit and combined floodgate in order to power to be provided.
3. the mechanical high-voltage circuit breaker with short circuit self-locking function according to claim 2 is characterized in that described motor unit comprises:
Main gangbar,
Divide STATEMENT OF FEDERALLY SPONSORED, itself and described main gangbar are slidingly connected, and STATEMENT OF FEDERALLY SPONSORED was corresponding with described movable contact piece in described minute, the contact that triggers described movable contact piece and stationary contact piece with separate.
4. the mechanical high-voltage circuit breaker with short circuit self-locking function according to claim 3 is characterized in that described power unit is an elastic energy storage mechanism, and it comprises:
One rocking handle,
The two-stage gear transmission structure, described rocking handle combines with described primary pinion, by described rocking handle, described primary pinion is rotated;
One swinging block, it combines with described secondary gears, and the upper end is connected with described main gangbar;
One cam, itself and described swinging block are coupling;
One jacking block, pushing tow is at described swinging block lateral margin;
At least one first back-moving spring, it is connected with described cam, is stretched along with the rotation of cam;
At least one second back-moving spring, it is connected with an end of housing, and its other end is connected with described main gangbar.
5. according to claim 1 or 4 described mechanical high-voltage circuit breakers, it is characterized in that described short-circuit detecting unit comprises with short circuit self-locking function:
Be arranged on current acquisition subelement on each described phase line, in order to gather the current signal on every phase line;
One controller that shoves, it is connected respectively at described current acquisition subelement, compares in order to a current signal on arbitrary phase line that will collect and a threshold value, exports a triggering signal when short circuit occurring.
6. the mechanical high-voltage circuit breaker with short circuit self-locking function according to claim 5, it is characterized in that, described short circuit action triggers mechanism is an electromagnet, and its solenoid is connected with the described controller that shoves, and its armature end is corresponding with a trigger end of described jacking block.
7. the mechanical high-voltage circuit breaker with short circuit self-locking function according to claim 6 is characterized in that, described mechanical type self-locking mechanism comprises:
One angled slide block;
One back-moving spring, it is set on the described angled slide block;
One storage tank, described angled slide block and described back-moving spring are arranged on wherein, and described storage tank is provided with a guide groove, and it is corresponding with described armature;
Has a release end on the described angled slide block, in order to manual release.
8. the mechanical high-voltage circuit breaker with short circuit self-locking function according to claim 6 is characterized in that, described mechanical type self-locking mechanism comprises:
One guide vane end stop, it can embed in the caulking groove of described armature end setting;
One back-moving spring, it places between described guide vane end stop and the housing, in order to realize resetting of described guide vane end stop;
One pull bar, itself and described guide vane end stop Joint are in order to realize manual release.
9. the mechanical high-voltage circuit breaker with short circuit self-locking function according to claim 6 is characterized in that, described mechanical type self-locking mechanism comprises:
One guiding cell body;
One triggers piece, and it places in the described guiding cell body, in order to corresponding with the trigger end of described jacking block;
One first back-moving spring, its place in the described guiding cell body and described triggering piece between;
One guide vane end stop, it can embed in the caulking groove of described triggering piece setting;
One second back-moving spring, it places between described guide vane end stop and the housing, with so that described guide vane end stop reset;
One pull bar, itself and described guide vane end stop Joint are in order to realize manual release.
10. the mechanical high-voltage circuit breaker with short circuit self-locking function according to claim 6 is characterized in that, described mechanical type self-locking mechanism comprises:
One guiding cell body, the bottom is provided with caulking groove in the described guiding cell body;
One L type triggers piece, and it places in the described guiding cell body, and its first end is in order to corresponding with the trigger end of described jacking block, and its bottom is provided with a projection, and is corresponding with described caulking groove;
One first back-moving spring, it places described guiding cell body and described L type to trigger between piece first end;
One second back-moving spring, it places described L type to trigger between piece second end and the housing, in order to realize that described L type is triggered resetting of piece;
One pull bar, itself and described L type trigger the piece second end Joint, in order to realize manual release.
11. the mechanical high-voltage circuit breaker with short circuit self-locking function according to claim 6 is characterized in that, described mechanical type self-locking mechanism comprises:
One hook, its first end hangs in the hole on the described jacking block trigger end, and its other end can stretch out along the hole on the described housing;
One back-moving spring, it places between described hook and the described housing.
12. the mechanical high-voltage circuit breaker with short circuit self-locking function according to claim 5 is characterized in that, described current acquisition subelement be current transformer or copper-manganese sheet one of them.
13. the mechanical high-voltage circuit breaker with short circuit self-locking function according to claim 5, it is characterized in that, also comprise: a communication unit, it is connected with the described controller that shoves, when unusual condition occurring, information is sent to a data receiver.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910215606 CN101740272B (en) | 2009-12-21 | 2009-12-21 | Mechanical high-voltage circuit breaker with short circuit self-locking function |
| PCT/CN2010/000826 WO2011075931A1 (en) | 2009-12-21 | 2010-06-11 | Mechanical high voltage breaker with function of short circuit self-locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910215606 CN101740272B (en) | 2009-12-21 | 2009-12-21 | Mechanical high-voltage circuit breaker with short circuit self-locking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101740272A true CN101740272A (en) | 2010-06-16 |
| CN101740272B CN101740272B (en) | 2012-12-19 |
Family
ID=42463569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910215606 Expired - Fee Related CN101740272B (en) | 2009-12-21 | 2009-12-21 | Mechanical high-voltage circuit breaker with short circuit self-locking function |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101740272B (en) |
| WO (1) | WO2011075931A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013363A (en) * | 2010-10-18 | 2011-04-13 | 湖北盛佳电器设备有限公司 | Miniature circuit breaker with short circuit self-locking function |
| CN102169779A (en) * | 2011-01-30 | 2011-08-31 | 湖北盛佳电器设备有限公司 | Frame type circuit breaker with self-locking function |
| CN102194584A (en) * | 2011-01-30 | 2011-09-21 | 湖北盛佳电器设备有限公司 | High-voltage circuit breaker with self-locking function |
| CN102570384A (en) * | 2010-10-05 | 2012-07-11 | Ls产电株式会社 | Earth leakage current breaker |
| CN111863513A (en) * | 2020-07-09 | 2020-10-30 | 河南智开智能科技有限公司 | Outdoor high-voltage vacuum intelligent circuit breaker |
| CN115295355A (en) * | 2022-10-08 | 2022-11-04 | 宁波耐森电气科技有限公司 | Vacuum contactor for inflating cabinet |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60250535A (en) * | 1984-05-25 | 1985-12-11 | 神鋼電機株式会社 | Mechanism for drawing vacuum breaker |
| DE10325141B3 (en) * | 2003-05-27 | 2004-12-02 | Siemens Ag | Arrangement with a vacuum circuit breaker |
| CN2779587Y (en) * | 2005-02-19 | 2006-05-10 | 周胜 | A/C high voltage vacuum breaker |
| CN201213116Y (en) * | 2008-07-07 | 2009-03-25 | 湖北盛佳电器设备有限公司 | Circuit breaker having short circuit self-locking function |
-
2009
- 2009-12-21 CN CN 200910215606 patent/CN101740272B/en not_active Expired - Fee Related
-
2010
- 2010-06-11 WO PCT/CN2010/000826 patent/WO2011075931A1/en active Application Filing
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570384A (en) * | 2010-10-05 | 2012-07-11 | Ls产电株式会社 | Earth leakage current breaker |
| CN102013363A (en) * | 2010-10-18 | 2011-04-13 | 湖北盛佳电器设备有限公司 | Miniature circuit breaker with short circuit self-locking function |
| CN102013363B (en) * | 2010-10-18 | 2015-01-28 | 湖北盛佳电器设备有限公司 | Miniature circuit breaker with short circuit self-locking function |
| CN102169779A (en) * | 2011-01-30 | 2011-08-31 | 湖北盛佳电器设备有限公司 | Frame type circuit breaker with self-locking function |
| CN102194584A (en) * | 2011-01-30 | 2011-09-21 | 湖北盛佳电器设备有限公司 | High-voltage circuit breaker with self-locking function |
| CN102169779B (en) * | 2011-01-30 | 2014-06-11 | 湖北盛佳电器设备有限公司 | Frame type circuit breaker with self-locking function |
| CN111863513A (en) * | 2020-07-09 | 2020-10-30 | 河南智开智能科技有限公司 | Outdoor high-voltage vacuum intelligent circuit breaker |
| CN111863513B (en) * | 2020-07-09 | 2022-07-26 | 河南智开智能科技有限公司 | Outdoor high-voltage vacuum intelligent circuit breaker |
| CN115295355A (en) * | 2022-10-08 | 2022-11-04 | 宁波耐森电气科技有限公司 | Vacuum contactor for inflating cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011075931A1 (en) | 2011-06-30 |
| CN101740272B (en) | 2012-12-19 |
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Application publication date: 20100616 Assignee: Hubei Shengjia Electrical Equipment Co., Ltd. Assignor: Wan Jiasheng Contract record no.: 2014420000149 Denomination of invention: Mechanical high-voltage circuit breaker with short circuit self-locking function Granted publication date: 20121219 License type: Exclusive License Record date: 20140717 |
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Granted publication date: 20121219 Termination date: 20181221 |