CN109065411B - A kind of guard method of asynchronous motor - Google Patents

Abstract

The invention belongs to circuit protection technical field, specifically a kind of guard method of asynchronous motor, the high pressure breaker protector that this method uses includes framework, active module and slave module；The framework upper and lower surface is respectively provided with two active modules；Slave module is equipped in the framework；Heat mercury is generated when voltage increases, T shape insulating bar, which moves up, disconnects the first contact and the second contact, and electromagnetic generator stops power supply, brake bar move down drive lower goods rack plate and under hold object plate and move toward one another, two electricity touching balls separate under the action of stretch cord, disconnect main circuit；When the temperature will return back to normal, since mercury contraction is slower, by the contraction for accelerating mercury under the elastic force effect of the first spring and the gravity of T shape insulating bar, connect the first contact and the second contact, electromagnetic generator normal power supply, brake bar move up drive lower goods rack plate and under hold object plate and do opposite direction movement, make two electricity touching balls contacts, realize that full automatic circuit disconnects and closure.

Description

A kind of guard method of asynchronous motor

Technical field

The invention belongs to circuit protection technical field, specifically a kind of guard method of asynchronous motor.

Background technique

Circuit protection is mainly to protect the component in electronic circuit by feelings such as over-voltage, overcurrent, surge, electromagnetic interferences Not damaged under condition, with the development of science and technology, electric power/electronic product increasingly diversification, complication, applied circuit are protected Oneself non-simple glass tube fuse in the past of protection element usually protects device to have varistor, TVS, gas-discharge tube etc., oneself Developed into a new electronic member arts of a great variety.

Breaker is can be automatic when serious overload or short circuit and the failures such as under-voltage occur for circuit or electric appliance original part Circuit is cut off, function is equivalent to Fuse switch and crosses the combination of underheat relay etc..And after disjunction fault current Change components are not needed generally.Currently, having had been widely used.

Also occurs the technical solution of some breaker protectors in the prior art, as application No. is 2017110070409 One Chinese patent discloses a kind of breaker (TS), for disconnecting circuit, the open circuit when being more than adjustable security parameter Device includes electronic trigger lug (ETU), wherein adjusted security parameter is stored, including movable lead sealing disk (3), the lead sealing disk Covering at least partly breaker (TS), it is characterized in that: the breaker (TS) has sensor (5,7), can determine that lead sealing with it The first state of disk (3)；And electronic trigger lug (ETU) is designed as, and is only joined safely in the first state of lead sealing disk (3) Several changes is just received by electronic trigger lug (ETU).

The technical solution can guarantee the safety trip of circuit, can be examined simultaneously by a variety of electric power original part control circuit open circuits Voltage and current value in slowdown monitoring circuit, but keep breaker operator excessively complicated by a variety of original part control circuits, and need work people Member's operation, cannot achieve automatic running, a variety of original part costs are excessively high to be unfavorable for producing in batches.

Summary of the invention

In order to make up for the deficiencies of the prior art, the guard method of a kind of asynchronous motor proposed by the present invention, this method institute The high-tension circuit protector used passes through the parallel connection of secondary circuit and main circuit, and when main circuit overtension, secondary circuit voltage is same Step is promoted, and voltage, which increases heating mercury, makes secondary circuit breaker, and electromagnetic generator stops power supply, makes brake bar by torsional spring and disk It moves down to separate so that electricity be made to touch ball, disconnects main circuit, and circuit realization is auto-power on after temperature is restored.

The technical solution adopted by the present invention to solve the technical problems is: a kind of guard method of asynchronous motor, the party Method the following steps are included:

Step 1: asynchronous electric electromechanical source is disconnected；

Step 2: choosing high-tension circuit protector, and concatenate in high-tension circuit, and detection high-tension circuit protector operation is It is no normal；

Step 3: the asynchronous motor that step 1 powers off is concatenated into the protection of the high-tension circuit after detection after chopper switch Device；

Step 4: high-tension circuit protector is fixed on to the position of ventilation waterproof；

Step 5: the asynchronous motor that step 3 places high-tension circuit protector is powered；

Wherein, high-tension circuit protector described in step 2, including framework, active module and slave module；The framework Upper and lower surface is respectively provided with two active modules；Slave module is equipped in the framework；The framework surface is fixedly connected with protection Cover；The active module is located in protective cover；When work, active module is used to control the power-off and energization of slave module；Wherein,

The active module includes mandril, torsional spring, brake bar, oscillating rod, sliding block, magnet plunger, electromagnetic generator and disk； The framework surface is fixedly connected with mandril；The ram surface is arranged with torsional spring；Framework surface is fixed in the torsional spring lower end； The disk rotational is connected to mandril upper surface；Lower disk surface is fixed in the torsional spring upper end；The disk is each side Equipped with a brake bar, two brake bars both pass through framework setting；Two brake bar sides are equipped with across braking The rectangular brake port of bar；Two brake bars are equipped with sliding block close to the side of disk；The sliding block is slidably connected to framework Surface；The sliding block is close to one end inclined design of rectangular brake port, and sliding block can be inserted into rectangular brake port, when work, due to When passing in and out rectangular brake port brake bar can vertically moved up and down for the inclined design of sliding block, sliding block；Two sliding blocks are close to circle One end of disk is equipped with oscillating rod；The oscillating rod is symmetrically connected to the both ends of disc surfaces；The disk and right side brake The electromagnetic generator for being fixedly connected on framework surface is equipped between bar；The electromagnetic generator is equipped with electromagnetism close to the side of disk Bar；The one end of the magnet plunger far from electromagnetic generator and left side oscillating rod common rotation are connected to disc surfaces；When work, electricity Magnetic flux generator energization can produce magnetic force, and identical charges repel each other that magnet plunger is pushed to make disk rotational by magnetic, to pass through swing The symmetrical rotation connection of bar and disk, when disk rotational, make oscillating rod on the left of disk that sliding block be pushed to enter corresponding rectangular braking Mouthful, right side oscillating rod pushes sliding block to enter counterparty's shape and opens one's mouth, and realizes that two synchronizing for brake bar move up；When power-off, electricity Magnetic flux generator does not generate magnetic force, rotates disk opposite direction by torsional spring, keeps sliding block sliding out of rectangular brake port by oscillating rod Out, it is moved down so that brake bar be made to synchronize；

The right brake bar top of a module is equipped with secondary circuit in the active module, and the pair circuit and main circuit are simultaneously Connection；When work, main circuit voltage, which increases, makes secondary circuit voltage connected in parallel is synchronous to increase；It is described pair circuit include mercury tube, Conducting wire, the first contact and the second contact；The first contact is fixedly connected at the top of the brake bar；First contact upper end is equipped with Second contact；The mercury tube passes through and is fixedly connected on protective cover；Second contact upper end is fixedly connected with the insulation of T shape Bar, the T shape insulating bar upper end pass through mercury tube in being slidably connected in mercury tube, and are upper and lower two by completely cutting off inside mercury tube Point；Partially it is provided with mercury under the mercury tube, the mercury tube top, which is arranged with, is fixedly connected on mercury inside pipe wall and T shape is exhausted The first spring between edge bar；The mercury tube has conducting wire, the conducting wire and the second contact in protective cover outer portion surface wrap It is electrically connected and is electrically connected with each electromagnetic generator；When work, the first contact and the second contact connect in the normal situation of main circuit It connects, electromagnetic generator normal power supply moves up brake bar, and voltage increases when main line short circuit, since mercury tube surface wrap is led Line generates heat mercury when voltage increases, T shape insulating bar, which moves up, disconnects the first contact and the second contact, and electromagnetism occurs Device stops power supply, and brake bar moves down；Mercury tube, which is exposed to, to be conducive to cool down in air, when the temperature will return back to normal, due to mercury Contraction is slower, by accelerating the contraction of mercury under the elastic force effect of the first spring and the gravity of T shape insulating bar, makes first Contact and the connection of the second contact, secondary circuit pathways, electromagnetic generator normal power supply make main current paths.

The slave module includes that arc holds object plate, conducting wire, electricity touching ball and stretch cord；The brake bar passes through framework in frame Be fixedly connected with arc in vivo and hold object plate, the arc hold object plate be divided into lower goods rack plate and under hold object plate, the framework upper end two A active module is fixedly connected with lower goods rack plate by corresponding brake bar；The active module of the framework lower end two passes through corresponding Brake bar, which is fixedly connected down, holds object plate, and the surface that the lower goods rack plate holds object plate opposite side under passes through conducting wire and is connected with electricity Touch ball；Two electricity touching balls and two conducting wires constitute main circuit；The two electricity touching one end of ball far from conducting wire are logical It crosses stretch cord and is fixedly connected on opposite arc and hold on object plate, prevent electricity touching spherical pendulum dynamic by the stretching of stretch cord；When work, just Electricity touching ball contact, main circuit are powered in normal situation；Voltage increases secondary down circuitry, and brake bar, which moves down, drives lower goods rack plate to hold under Object plate moves toward one another, and two electricity touching balls separate under the action of stretch cord, disconnects main circuit, after temperature restores normal, Secondary power on circuitry, sliding block drive lower goods rack plate to hold object plate under and do opposite direction fortune in moving up brake bar in rectangular brake port It is dynamic, make two electric touching balls contacts, main circuit is powered, and realizes that full automatic circuit is disconnected and is closed.

Preferably, second contact of the first contact is arranged with rubber ring, and when work, rubber ring can completely cut off contact Generated electric arc effectively prevents unexpected generation.

Preferably, the lower goods rack plate and under hold and be equipped at least four second springs between object plate and framework inner wall；Work When making, lower goods rack plate and under hold object plate and do opposite or when moving toward one another, second spring can assist brake bar to drive lower goods rack Plate holds the movement of object plate under, and can prevent the amplitude of limitation brake bar raising and lowering, and it is rectangular to guarantee that sliding block can normally enter In brake port.

Preferably, opening is offered on the left of the framework, the opening does not penetrate framework；In being opened in framework in the opening Equipped with horizontal piston groove, threaded rod is equipped in the piston groove, the piston groove inner wall is equipped with the thread groove of corresponding threaded rod； The threaded rod is equipped with fan in opening part of the surface fixing sleeve；The one end of the threaded rod far from fan is in solid in piston groove Surely it is connected with piston block；The lower goods rack plate and under hold and be equipped at least four first air bags, institute between object plate and framework inner wall The first air bag is stated to be connected to piston groove；The framework is equipped with horizontally disposed at least four port in opening, and the port connects In logical framework；When work, when circuit pathways or open circuit, lower goods rack plate, which holds object plate under, can squeeze or stretch the second air bag, Make air pressure change in piston groove, to push piston block to move left and right threaded rod, in thread groove when threaded rod moves left and right Positive perhaps counter motion can be occurred so that fan be driven to rotate forward or invert by acting on lower threaded rod, be made in fan rotation process Outside air is entered and left in framework by port, is made high pressure breaker protector inner air flow, is dropped to high pressure breaker protector Mildly the intracorporal minute impurities of frame are taken out of.

Preferably, the lower goods rack plate and under hold object plate and be fixedly connected with the second gas between opposite face on the right side of electricity touching ball Capsule, second air bag offer stomata close to electricity touching ball on one side；When work, it is opposite or opposite that lower goods rack plate holds object plate under Movement makes the second air bag compress and stretch, and cooperation fan formation moves synchronously, and the circulation of framework interior air-flow is made to strengthen cooling effect Fruit, and preferably impurity in framework can be discharged.

Beneficial effects of the present invention are as follows:

1. the magnetic force that the present invention is generated by setting active module, electromagnetic generator energization, is pushed away by principle of same-sex repulsion Dynamic magnet plunger makes disk rotational, thus rotation and symmetrical connection by oscillating rod and disk, when disk rotational makes on the left of disk Oscillating rod pushes sliding block to enter corresponding rectangular brake port, and right side oscillating rod pushes sliding block to enter counterparty's shape and opens one's mouth, by In the inclined design of sliding block, when passing in and out rectangular brake port brake bar can vertically moved up and down, realizes two brake bars for sliding block It synchronizes and moves up；When power-off, electromagnetic generator does not generate magnetic force, rotates disk opposite direction by torsional spring, makes to slide by oscillating rod Block is skidded off out of rectangular brake port, is moved down so that brake bar be made to synchronize；

2. the present invention is by being arranged secondary circuit, in parallel with main circuit by secondary circuit, the raising of main circuit voltage makes secondary circuit Voltage synchronous increases, and since mercury tube surface wrap has a conducting wire, generates heat mercury when voltage increases, on T shape insulating bar Shifting disconnects the first contact and the second contact, and electromagnetic generator stops power supply, and brake bar moves down；Mercury tube, which is exposed in air, to be had Conducive to cooling, when the temperature will return back to normal, since mercury contraction is slower, the elastic force effect and T shape for passing through the first spring are insulated The contraction for accelerating mercury under the gravity of bar connects the first contact and the second contact, and secondary circuit pathways, electromagnetic generator is just Often power supply, makes main current paths；

3. the present invention by setting electricity touching ball, conducting wire, lower goods rack plate and under hold object plate, pass through electricity and touch ball and conducting wire and constitute master Circuit；The contact of electricity touching ball, main circuit are powered under normal circumstances；Pair down circuitry when voltage increases, brake bar moves down to be held in drive Object plate holds object plate under and moves toward one another, and two electricity touching balls separate under the action of stretch cord, disconnects main circuit, when temperature is extensive After answering normally, secondary power on circuitry, sliding block drives lower goods rack plate to hold object plate under and does phase in moving up brake bar in rectangular brake port Opposite direction movement makes two electric touching balls contacts, and main circuit is powered, and realizes that full automatic circuit is disconnected and is closed；

4. the present invention passes through setting rubber ring, when the first contact and the second contact, two rubber ring mutual extrusion energy Completely cut off electric arc caused by contact, effectively prevents unexpected generation；

5. the present invention is by setting second spring, lower goods rack plate and under hold object plate do it is opposite or when moving toward one another, second Spring can assist brake bar that lower goods rack plate is driven to hold the movement of object plate under, and can prevent limitation brake bar raising and lowering Amplitude guarantees that sliding block can normally enter in rectangular brake port；

6. the present invention is by the second air bag of setting, by hold object plate and under hold that object plate is opposite or reverse motions, can compress With stretch the second air bag, cooperation fan formation moves synchronously, and flows framework interior air-flow, strengthens cooling effect, and can be more preferable Impurity in framework is discharged.

Detailed description of the invention

The present invention will be further explained below with reference to the attached drawings.

Fig. 1 is this method flow chart；

Fig. 2 is main view of the invention；

Fig. 3 is A-A cross-sectional view in Fig. 2；

Fig. 4 is B-B cross-sectional view in Fig. 2；

Fig. 5 is enlarged drawing at C in Fig. 2；

Fig. 6 is enlarged drawing at D in Fig. 2；

In figure: framework 1, opening 11, piston groove 12, threaded rod 13, thread groove 14, fan 15, piston block 16, the first air bag 17, port 18, the second air bag 19, active module 2, mandril 21, torsional spring 22, brake bar 23, oscillating rod 24, sliding block 25, magnet plunger 26, electromagnetic generator 27, disk 28, rectangular brake port 29, slave module 3, electricity touching ball 31, lower goods rack plate 32, under hold object plate 33, Stretch cord 34, second spring 35, protective cover 4, secondary circuit 5, mercury tube 51, the first contact 52, the second contact 53, T shape insulating bar 54, the first spring 55, rubber ring 56 and main circuit 6.

Specific embodiment

In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below Specific embodiment is closed, the present invention is further explained.

As shown in Figures 1 to 6, a kind of guard method of asynchronous motor, method includes the following steps:

Step 1: asynchronous electric electromechanical source is disconnected；

Step 2: choosing high-tension circuit protector, and concatenate in high-tension circuit, and detection high-tension circuit protector operation is It is no normal；

Step 3: the asynchronous motor that step 1 powers off is concatenated into the protection of the high-tension circuit after detection after chopper switch Device；

Step 4: high-tension circuit protector is fixed on to the position of ventilation waterproof；

Step 5: the asynchronous motor that step 3 places high-tension circuit protector is powered；

Wherein, high-tension circuit protector described in step 2, including framework 1, active module 2 and slave module 3；The frame 1 upper and lower surface of body is respectively provided with two active modules 2；Slave module 3 is equipped in the framework 1；1 surface of framework is fixedly connected There is protective cover 4；The active module 2 is located in protective cover 4；When work, active module 2 is used to control the power-off of slave module 3 With energization；Wherein,

The active module 2 includes mandril 21, torsional spring 22, brake bar 23, oscillating rod 24, sliding block 25, magnet plunger 26, electromagnetism Generator 27 and disk 28；1 surface of framework is fixedly connected with mandril 21；21 surface of mandril is arranged with torsional spring 22；Institute It states 22 lower end of torsional spring and is fixed on 1 surface of framework；The disk 28 is rotationally connected with 21 upper surface of mandril；22 upper end of torsional spring is solid Due to 28 lower surface of disk；A brake bar 23 is respectively provided at left and right sides of the disk 28, two brake bars 23 both pass through Framework 1 is arranged；Two 23 sides of brake bar are equipped with the rectangular brake port 29 across brake bar 23；Two brake bars 23 are equipped with sliding block 25 close to the side of disk 28；The sliding block 25 is slidably connected to 1 surface of framework；The sliding block 25 is close to side Shape open one's mouth 29 one end inclined design, and sliding block 25 can be inserted into rectangular brake port 29；When work, since the inclined-plane of sliding block 25 is set Meter, when sliding block 25 passes in and out rectangular brake port 29 about 23 brake bar can vertically move；Two sliding blocks 25 are close to disk 28 One end be equipped with oscillating rod 24；The oscillating rod 24 is symmetrically connected to the both ends on 28 surface of disk；The disk 28 and the right side The electromagnetic generator 27 for being fixedly connected on 1 surface of framework is equipped between side brake bar 23；The electromagnetic generator 27 is close to disk 28 side is equipped with magnet plunger 26；The one end of the magnet plunger 26 far from electromagnetic generator 27 and 24 common rotation of left side oscillating rod It is connected to 28 surface of disk；When work, the energization of electromagnetic generator 27 can produce magnetic force, be pushed by magnetic principle of same-sex repulsion Magnet plunger 26 rotates disk 28, to pass through the symmetrical rotation connection of oscillating rod 24 and disk 28, disk 28 makes to justify when rotating 28 left side oscillating rod 24 of disk pushes sliding block 25 to enter corresponding rectangular brake port 29, and right side oscillating rod 24 pushes sliding block 25 to enter Counterparty's shape opens one's mouth 29, realizes that two synchronizing for brake bar 23 move up；When power-off, electromagnetic generator 27 does not generate magnetic force, leads to Crossing torsional spring 22 rotates 28 opposite direction of disk, skids off sliding block 25 out of rectangular brake port 29 by oscillating rod 24, to make to make Lever 23, which synchronizes, to be moved down；

23 top of right brake bar of a module is equipped with secondary circuit 5, the pair circuit 5 and main electricity in the active module 2 Road 6 is in parallel；When work, the raising of 6 voltage of main circuit increases 5 voltage synchronous of secondary circuit connected in parallel；It is described pair circuit 5 include Mercury tube 51, conducting wire, the first contact 52 and the second contact 53；The first contact 52 is fixedly connected at the top of the brake bar 23；Institute 52 upper end of the first contact is stated equipped with the second contact 53；The mercury tube 51 passes through and is fixedly connected on protective cover 4；Second touching First 53 upper end is fixedly connected with T shape insulating bar 54, and 54 upper end of T shape insulating bar passes through mercury tube 51 and slides in mercury tube 51 Connection, and will completely cut off inside mercury tube 51 for upper and lower two parts；Mercury, the mercury tube are partially provided under the mercury tube 51 51 tops are arranged with the first spring 55 being fixedly connected between 51 inner wall of mercury tube and T shape insulating bar 54；The mercury tube 51 Have a conducting wire in 4 outer portion surface wrap of protective cover, the conducting wire be electrically connected with the second contact 53 and with each electromagnetic generator 27 Electrical connection；When work, first contact 52 and the connection of the second contact 53, electromagnetic generator 27 are normal in the normal situation of main circuit 6 Power supply moves up brake bar 23, and voltage increases when main line short circuit, since 51 surface wrap of mercury tube has conducting wire, when voltage increases Heat mercury is generated, T shape insulating bar 54, which moves up, disconnects the first contact 52 and the second contact 53, and electromagnetic generator 27 stops Power supply, brake bar 23 move down；Mercury tube 51, which is exposed to, to be conducive to cool down in air, when the temperature will return back to normal, since mercury is received It contracts slower, by accelerating the contraction of mercury under the gravity of the effect of the elastic force of the first spring 55 and T shape insulating bar 54, makes the One contact 52 and the connection of the second contact 53, secondary 5 access of circuit, 27 normal power supply of electromagnetic generator make 6 access of main circuit.

The slave module 3 includes that arc holds object plate, conducting wire, electricity touching ball 31 and stretch cord 34；The brake bar 23 passes through Framework 1 holds object plate in being fixedly connected with arc in framework 1, the arc hold object plate be divided into lower goods rack plate 32 and under hold object plate 33, The framework active module 2 of 1 upper end two is fixedly connected with lower goods rack plate 32 by corresponding brake bar 23；1 lower end of framework Two active modules 2 are fixedly connected down by corresponding brake bar 23 and hold object plate 33, and the lower goods rack plate 32 holds object plate 33 under The surface of opposite side passes through conducting wire and is connected with electricity touching ball 31；Two electricity touching balls 31 and two conducting wires constitute main electricity Road 6；The two electricity touching one end of ball 31 far from conducting wire, which pass through stretch cord 34 and are fixedly connected on opposite arc, holds on object plate, Prevent electricity touching ball 31 from swinging by the stretching of stretch cord 34；When work, electricity touching ball 31 is contacted under normal circumstances, and main circuit 6 is powered； Voltage increases secondary circuit 5 and powers off, brake bar 23 move down drive lower goods rack plate 32 and under hold object plate 33 and move toward one another, in stretch cord Two electricity touching balls 31 separate under the action of 34, disconnect main circuit 6, after temperature restores normal, secondary circuit 5 is powered, sliding block 25 In moving up brake bar 23 in rectangular brake port 29, drives lower goods rack plate 32 to hold object plate 33 under and do opposite direction movement, make two A electricity touching ball 31 contacts, and main circuit 6 is powered, and realizes full automatic circuit disconnection and closure.

As a kind of specific embodiment of the invention, 52 second contact 53 of the first contact is arranged with rubber ring 56, when work, two 56 mutual extrusions of rubber ring can completely cut off electric arc caused by contact, effectively prevent unexpected generation.

As a kind of specific embodiment of the invention, the lower goods rack plate 32 and under hold object plate 33 and 1 inner wall of framework it Between be equipped at least four second springs 35；When work, lower goods rack plate 32 and under hold object plate 33 do it is opposite or when moving toward one another, Second spring 35 can assist brake bar 23 that lower goods rack plate 32 is driven to hold the movement of object plate 33 under, and can prevent limitation brake bar The amplitude of 23 raising and lowerings guarantees that sliding block 25 can normally enter in rectangular brake port 29.

As a kind of specific embodiment of the invention, opening 11 is offered on the left of the framework 1, the opening 11 is not worn Saturating framework 1；In offering horizontal piston groove 12 in framework 1 in the opening 11, it is equipped with threaded rod 13 in the piston groove 12, 12 inner wall of piston groove is equipped with the thread groove 14 of corresponding threaded rod 13；The threaded rod 13 part of the surface at opening 11 is fixed It is arranged with fan 15；The described one end of threaded rod 13 far from fan 15 is in being fixedly connected with piston block 16 in piston groove 12；It is described Lower goods rack plate 32 and under hold and be equipped at least four first air bags 17, first air bag 17 between 1 inner wall of object plate 33 and framework It is connected to piston groove 12；The framework 1 is equipped with horizontally disposed at least four port 18 at opening 11, and the port 18 is connected to In framework 1；When work, when circuit pathways or open circuit, lower goods rack plate 32, which holds object plate 33 under, can squeeze or stretch the second gas Capsule 19 makes air pressure change in piston groove 12, so that piston block 16 be pushed to move left and right threaded rod 13, threaded rod 13 is moved left and right When under the action of thread groove 14 threaded rod 13 positive perhaps counter motion can occur so that fan 15 be driven to rotate forward or anti- Turn, enters and leaves outside air in framework 1 by port 18, make air stream in high pressure breaker protector It is logical, cooling is carried out to high pressure breaker protector and takes the minute impurities in framework 1 out of.

As a kind of specific embodiment of the invention, the lower goods rack plate 32 holds object plate 33 in 31 right side of electricity touching ball under The second air bag 19 is fixedly connected between opposite face, second air bag 19 offers stomata close to electricity touching ball 31 on one side；Work When making, lower goods rack plate 32 and under hold that object plate 33 is opposite or reverse motions, so that the second air bag 19 is compressed and is stretched, cooperate 15 shape of fan At moving synchronously, the circulation of 1 interior air-flow of framework is set to strengthen cooling effect, and preferably impurity in framework 1 can be discharged.

When work, electricity touching ball 31 and conducting wire constitute main circuit 6 and mercury tube 51, conducting wire, the first contact 52 and the second contact The secondary circuit 5 of 53 compositions is in parallel, the first contact 52 and the connection of the second contact 53, electromagnetic generator in the normal situation of main circuit 6 27 are powered can produce magnetic force, and identical charges repel each other that magnet plunger 26 is pushed to rotate disk 28 by magnetic, to pass through oscillating rod 24 with the symmetrical rotation connection of disk 28, disk 28 makes 28 left side oscillating rod 24 of disk that sliding block 25 be pushed to enter when rotating corresponding Rectangular brake port 29, right side oscillating rod 24 pushes sliding block 25 to enter counterparty's shape and opens one's mouth 29, since the inclined-plane of sliding block 25 is set Meter, when sliding block 25 passes in and out rectangular brake port 29 about 23 brake bar can vertically move, realize synchronizing for two brake bars 23 Shifting moves up brake bar 23, so that driving lower goods rack plate 32 to hold object plate 33 under does opposite direction movement, makes two electricity touching balls 31 Contact, main circuit 6 are powered；Voltage increases when main line short circuit, and 5 voltage synchronous of secondary circuit in parallel rises, due to mercury tube 51 Surface wrap has conducting wire, heat mercury is generated when voltage increases, T shape insulating bar 54, which moves up, makes the first contact 52 and the second touching First 53 disconnect, and electromagnetic generator 27 stops power supply, and electromagnetic generator 27 does not generate magnetic force, and torsional spring 22 turns 28 opposite direction of disk It is dynamic, sliding block 25 is skidded off out of rectangular brake port 29 by oscillating rod 24, is moved down so that brake bar 23 be made to synchronize, and lower goods rack is driven Plate 32 holds object plate 33 under and moves toward one another, and two electricity touching balls 31 separate under the action of stretch cord 34, disconnects main circuit 6； Temperature is existing to shrink rear mercury, since mercury shrinks slower, passes through the elastic force effect of the first spring 55 and T shape insulating bar 54 The contraction for accelerating mercury under gravity connects the first contact 52 and the second contact 53, two 56 mutual extrusion energy of rubber ring Completely cut off electric arc caused by contact, effectively prevent unexpected generation, electromagnetic generator 27 normally supplies after secondary 5 access of circuit Electricity makes 6 access of main circuit, realizes that full automatic circuit is disconnected and is closed；Meanwhile when circuit pathways or open circuit, lower goods rack Plate 32, which holds object plate 33 under, can squeeze or stretch the second air bag 19, make air pressure change in piston groove 12, to push piston block 16 move left and right threaded rod 13, when threaded rod 13 moves left and right under the action of thread groove 14 threaded rod 13 can occur it is positive or Person's counter motion outside air by port 18 so that fan 15 be driven to rotate forward or invert Enter in framework 1, make high pressure breaker protector inner air flow, to high pressure breaker protector carry out cooling and will be micro- in framework 1 Small impurity is taken out of；Meanwhile lower goods rack plate 32 and under hold that object plate 33 is opposite or reverse motions, so that the second air bag 19 is compressed and is stretched, The cooperation formation of fan 15 moves synchronously, and the circulation of 1 interior air-flow of framework is made to strengthen cooling effect, and can preferably will be miscellaneous in framework 1 Matter discharge.

The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle It is fixed.

Claims (5)

1. a kind of guard method of asynchronous motor, method includes the following steps: step 1: disconnecting asynchronous electric electromechanical source； Step 2: choosing high-tension circuit protector, and concatenate in high-tension circuit, and whether detection high-tension circuit protector operation is normal； Step 3: the asynchronous motor that step 1 powers off is concatenated into the high-tension circuit protector after detection after chopper switch；Step Four: high-tension circuit protector is fixed on to the position of ventilation waterproof；Step 5: step 3 is placed into high-tension circuit protector Asynchronous motor is powered；Wherein, high-tension circuit protector described in step 2, including framework (1), active module (2) and driven Module (3)；It is characterized by: framework (1) upper and lower surface is respectively provided with two active modules (2)；It is equipped in the framework (1) Slave module (3)；Framework (1) surface is fixedly connected with protective cover (4)；The active module (2) is located at protective cover (4) It is interior；The active module (2) is used to control the power-off and energization of slave module (3)；Wherein, the active module (2) includes top Bar (21), torsional spring (22), brake bar (23), oscillating rod (24), sliding block (25), magnet plunger (26), electromagnetic generator (27) and circle Disk (28)；Framework (1) surface is fixedly connected with mandril (21)；Mandril (21) surface is arranged with torsional spring (22)；It is described Framework (1) surface is fixed in torsional spring (22) lower end；The disk (28) is rotationally connected with mandril (21) upper surface；The torsional spring (22) disk (28) lower surface is fixed in upper end；A brake bar (23), two institutes are respectively provided at left and right sides of the disk (28) It states brake bar (23) and both passes through framework (1) setting；Two brake bar (23) sides are equipped with the side across brake bar (23) Shape opens one's mouth (29)；Two brake bars (23) are equipped with sliding block (25) close to the side of disk (28)；The sliding block (25) It is slidably connected to framework (1) surface；One end inclined design of the sliding block (25) close rectangular brake port (29), and sliding block (25) It can be inserted into rectangular brake port (29), when sliding block (25) enters and leaves rectangular brake port (29), due to the inclined design of sliding block (25), can make Brake bar (23) moves vertically up and down；Two sliding blocks (25) are equipped with oscillating rod (24) close to the one end of disk (28)；Institute State the both ends that oscillating rod (24) is symmetrically connected to disk (28) surface；It is set between the disk (28) and right side brake bar (23) There is the electromagnetic generator (27) for being fixedly connected on framework (1) surface；Side of the electromagnetic generator (27) close to disk (28) Equipped with magnet plunger (26)；The magnet plunger (26) one end and left side oscillating rod (24) common rotation far from electromagnetic generator (27) It is connected to disk (28) surface；Electromagnetic generator (27) can produce magnetic force after being powered, magnet plunger (26) is pushed to turn disk (28) It is dynamic to open one's mouth in (29), make on brake bar (23) to make two sliding blocks (25) enter counterparty's shape by oscillating rod (24) It moves；Rotate disk (28) opposite direction by torsional spring (22) when power-off, so that brake bar (23) be made to move down；The active module (2) right brake bar (23) top of a module is equipped with secondary circuit (5) in, and the pair circuit (5) is in parallel with main circuit (6)；Institute Stating secondary circuit (5) includes mercury tube (51), conducting wire, the first contact (52) and the second contact (53)；At the top of the brake bar (23) It is fixedly connected with the first contact (52)；First contact (52) upper end is equipped with the second contact (53)；The mercury tube (51) is worn It crosses and is fixedly connected on protective cover (4)；Second contact (53) upper end is fixedly connected with T shape insulating bar (54), and the T shape is exhausted Edge bar (54) upper end passes through mercury tube (51) and is slidably connected in mercury tube (51), and is upper and lower by isolation inside mercury tube (51) Two parts；Mercury is partially provided under the mercury tube (51), mercury tube (51) top, which is arranged with, is fixedly connected on mercury Manage the first spring (55) between (51) inner wall and T shape insulating bar (54)；The mercury tube (51) is in protective cover (4) outer portion table Face is wound with conducting wire, and the conducting wire is electrically connected with the second contact (53) and is electrically connected with each electromagnetic generator (27)；Main circuit (6) first contact (52) and the second contact (53) connection, electromagnetic generator (27) normal power supply brake bar (23) move up when normal, Voltage increases when main circuit (6) is short-circuit, and since mercury tube (51) surface wrap has conducting wire, heat water is generated when voltage increases Silver, T shape insulating bar (54), which moves up, disconnects the first contact (52) and the second contact (53), and electromagnetic generator (27) stops power supply, Brake bar (23) moves down；The slave module (3) includes that arc holds object plate, electricity touching ball (31) and stretch cord (34)；The braking Bar (23), which passes through framework (1) and is fixedly connected with arc in the framework (1), holds object plate, and the arc holds object plate and is divided into lower goods rack plate (32) He Xiacheng object plate (33), described two active modules (2) in framework (1) upper end are fixedly connected by corresponding brake bar (23) Lower goods rack plate (32)；Described two active modules (2) in framework (1) lower end are fixedly connected down by corresponding brake bar (23) and hold object Plate (33), the surface of lower goods rack plate (32) He Xiacheng object plate (33) opposite side pass through conducting wire and are connected with electricity touching ball (31)；Two electricity touchings ball (31) and two conducting wires constitute main circuit (6)；Two electricity touchings ball (31) are far from conducting wire One end pass through stretch cord (34) and be fixedly connected on opposite arc and hold on object plate, can prevent electricity touching ball (31) from swinging；Secondary electricity When road (5) is powered, in rectangular brake port (29), brake bar (23) moves up sliding block (25), drives lower goods rack plate (32) He Xiacheng Object plate (33) does opposite direction movement, two electricity touching ball (31) contacts, and main circuit (6) is powered；Pair circuit (5) is disconnected when voltage increases Electricity moves down brake bar (23) and lower goods rack plate (32) He Xiacheng object plate (33) is driven to do relative motion, the work in stretch cord (34) It is separated with lower two electricity touchings ball (31), main circuit (6) is made to disconnect protection main circuit (6).

2. a kind of guard method of asynchronous motor according to claim 1, it is characterised in that: first contact (52) Second contact (53) is arranged with rubber ring (56), and rubber ring (56) can completely cut off the first contact (52) and the second contact (53) contact When the electric arc that generates, prevent accident.

3. a kind of guard method of asynchronous motor according to claim 1, it is characterised in that: the lower goods rack plate (32) It is held under and and is equipped at least four second springs (35) between object plate (33) and framework (1) inner wall；Second spring (35) energy Brake bar (23) are assisted to drive the movement of lower goods rack plate (32) He Xiacheng object plate (33).

4. a kind of guard method of asynchronous motor according to claim 1, it is characterised in that: on the left of the framework (1) It offers opening (11), the opening (11) does not penetrate framework (1)；In offering level on framework (1) in the opening (11) Piston groove (12), be equipped with threaded rod (13) in the piston groove (12), piston groove (12) inner wall is equipped with corresponding threaded rod (13) thread groove (14)；The threaded rod (13) part of the surface fixing sleeve at opening (11) is equipped with fan (15)；The spiral shell The one end of rasp bar (13) far from fan (15) is fixedly connected with piston block (16) in the piston groove (12)；The lower goods rack plate (32) Held under and and be equipped at least four first air bags (17) between object plate (33) and framework (1) inner wall, first air bag (17) with Piston groove (12) connection；The framework (1) is equipped with horizontally disposed at least four port (18), the port at opening (11) (18) in connection framework (1)；When circuit pathways or open circuit, lower goods rack plate (32) He Xiacheng object plate (33) can be squeezed or be drawn The second air bag (19) are stretched, piston groove (12) interior air pressure change is made, thus make piston block (16) that threaded rod (13) to be driven to move left and right, Positive or counter motion can occur for threaded rod (13) under the action of thread groove (14) when threaded rod (13) moves left and right, thus It drives fan (15) to rotate forward or invert, outside air is made to enter and leave framework (1) by port (18) in fan (15) rotation process It is interior that cooling is carried out to high pressure breaker protector and takes the minute impurities in framework (1) out of.

5. a kind of guard method of asynchronous motor according to claim 4, it is characterised in that: the lower goods rack plate (32) It holds object plate (33) under and to be fixedly connected with the second air bag (19) between the opposite face of electricity touching ball (31) right side, second air bag (19) stomata is offered on one side close to electricity touching ball (31), lower goods rack plate (32) He Xiacheng object plate (33) is opposite or reverse motions When, make the second air bag (19) mutually compression and stretch, so that framework (1) interior air-flow is circulated, strengthen cooling effect, and wind can be assisted It fans (15) the interior impurity of framework (1) is discharged.