CN110021505A - Current over-load protector - Google Patents
Current over-load protector Download PDFInfo
- Publication number
- CN110021505A CN110021505A CN201910416115.1A CN201910416115A CN110021505A CN 110021505 A CN110021505 A CN 110021505A CN 201910416115 A CN201910416115 A CN 201910416115A CN 110021505 A CN110021505 A CN 110021505A
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- Prior art keywords
- plate
- conductive sheet
- overload
- shaft
- conductive
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- 230000001012 protector Effects 0.000 title claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 112
- 230000000694 effects Effects 0.000 claims abstract description 15
- 230000001960 triggered effect Effects 0.000 claims abstract description 10
- 230000000977 initiatory effect Effects 0.000 claims abstract description 4
- 230000000452 restraining effect Effects 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 24
- 230000001939 inductive effect Effects 0.000 claims description 23
- 230000006835 compression Effects 0.000 claims description 22
- 238000007906 compression Methods 0.000 claims description 22
- 230000008093 supporting effect Effects 0.000 claims description 19
- 238000003825 pressing Methods 0.000 claims description 16
- 239000012530 fluid Substances 0.000 claims description 13
- 230000006698 induction Effects 0.000 claims description 11
- 238000011084 recovery Methods 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 10
- 239000011810 insulating material Substances 0.000 claims description 9
- 230000000630 rising effect Effects 0.000 claims description 9
- 230000002547 anomalous effect Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 15
- 230000007423 decrease Effects 0.000 description 7
- 230000006872 improvement Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H81/00—Protective switches in which contacts are normally closed but are repeatedly opened and reclosed as long as a condition causing excess current persists, e.g. for current limiting
- H01H81/02—Protective switches in which contacts are normally closed but are repeatedly opened and reclosed as long as a condition causing excess current persists, e.g. for current limiting electrothermally operated
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
- H01H2071/147—Thermal release by expansion of a fluid
Landscapes
- Breakers (AREA)
Abstract
The present invention provides current over-load protectors, including protector body, automatic trigger tripper, the protector body includes install housing, circuit connection mechanism is installed in install housing, protection mechanism, circuit connection mechanism is used for power supply, electrical equipment, circuit connection between protection mechanism, protection mechanism includes the overload sensor component whether overloaded for automatic sensing circuital current, for controlling the circuit connection component that circuit circulates between source current and electrical equipment, the automatic trigger tripper includes limiting mechanism, trigger mechanism, resetting-mechanism, limiting mechanism is used to limit conductive plate and does the movement far from conductive sheet b under the effect of cut spring elastic force, trigger mechanism is used to be triggered by overload sensor component and limiting mechanism is made to cancel the limitation to conductive plate, resetting-mechanism is for assisting automatic initiating device to restore To original state.
Description
Technical field
The present invention relates to circuit fields, and in particular to a kind of current over-load protector.
Background technique
21st century is the information-based epoch, and information-based fast development makes people for electronic equipment, product
Dependence is increasing, and these electronic equipments, product all be unable to do without power supply, and the safety of power supply becomes focus concerned by people,
In order to guarantee Electrical Safety, people are provided with current over-load protector in electric appliance, and conventional current overload protective device passes through electric current
Overload can make bimetal leaf fever, deform and separate dynamic and static contact and achieve the purpose that cut off current supply circuit, but this kind of electric current
The bimetal leaf of overload protective device would generally restore deformation, reset circuit in seconds, if need to electric appliance be detected and be tieed up
It repairs, it is necessary to it is initially switched off power supply, if at this time because there are more serious failures to be overhauled without cutting off the power in time for electric appliance, protector
Rapid reset will bring great potential safety hazard, or due to the carelessness of maintenance personal, in the case where not cutting off the power into
The maintenance and detection of row electrical device, will be extremely dangerous, for this purpose, the present inventor, which designs a kind of use, thermally expands auto-cutout mode
Protector, can automatic sensing circuital current whether overload and decide whether to cut off the power, while circuit reset only needs user hand
Dynamic pressing restores bar, considerably increases security performance.
Summary of the invention
To solve the deficiencies in the prior art, the object of the present invention is to provide a kind of current over-load protector, under overload
Protector body make automatic trigger tripper be triggered and by the current flowing of therein cut off, to reach circuit mistake
Carry the purpose of protection, wherein protector body using expand with heat and contract with cold fluid and inductive reactance cooperation sensor circuit electric current whether mistake
It carries, sensitivity is sensitiveer.
To realize the above-mentioned technical purpose, the technical solution adopted in the present invention is as follows.
Current over-load protector, including protector body, automatic trigger tripper, protector body is for power supply and electricity
Current flowing between device equipment and can automatic sensing circuital current whether overload, automatic trigger tripper is used for by circuit electricity
Flow the current flowing of the protector body triggering and tripping protection device body interior under overload；
The protector body includes horizontal positioned install housing, and circuit connection mechanism, protection are equipped in install housing
Mechanism, circuit connection mechanism is for power supply, electrical equipment, the circuit connection between protection mechanism, and also fixation is set in install housing
It is equipped with pedestal；
The protection mechanism includes overload sensor component, circuit connection component, and overload sensor component is used for automatic sensing circuit
Whether electric current overloads, and circuit connection component is used to control the circuit circulation between source current and electrical equipment, and circuit connection
Component, which can be divided into, makes electric current smoothly be delivered to the closed state of electrical equipment by power supply, disconnect electric current between power supply and electrical equipment
The off-state of circulation；
The overload sensor component includes liquid storage cylinder, piston, top pillar, reset spring a, electric current induction pieces, and liquid storage cylinder is solid vertically
Coaxially offer perforating due on pedestal and its top, bottom end offers and stretches out hole, piston is set in liquid storage cylinder and constitutes
Slide-and-guide cooperation, one end of top pillar is fixedly connected with the piston, the other end passes through perforating and is located at right above liquid storage cylinder, is resetted
One end of spring a and the top of piston conflict, the other end and liquid storage cylinder contradict and the elastic force of reset spring a does piston close to storage
The movement of fluid cylinder bottom end；
The electric current induction pieces include inductive reactance, inductive reactance level be fixed in liquid storage cylinder and be located at piston just under
Side, the bottom of inductive reactance is additionally provided with junction pole and the bottom end of junction pole passes through stretching hole and is located at immediately below liquid storage cylinder, connects
Line bar is provided with two groups and respectively junction pole a, junction pole b, and stretches out hole correspondence and offer two groups；
The top of the inductive reactance also matches and is provided with heat conductive isolation sheet, and the region between heat conductive isolation sheet and piston is set
It is equipped with the fluid that expands with heat and contract with cold；
The overload sensor component can be divided into the overload for thermal expansion of expanding with heat and contract with cold, expand with heat and contract with cold fluid cold-shrinkage and extensive
The multiple normal condition to original state；
The periphery that the liquid storage cylinder is right against inductive reactance is provided with several groups cooling wind blade along itself circumferencial direction array；
The circuit connection component includes conduct piece, transition piece, and conduct piece includes conductive sheet a, conducting rod, conductive sheet b, buffering
Spring, conductive sheet a are fixed in install housing, conducting rod be fixed on vertically conductive sheet a towards overload sensor component one end and
The other end of conductive sheet a is connecting pin, and conductive sheet b is movably installed in outside conducting rod and constitutes slide-and-guide cooperation, and conductive
Piece b is located at conducting rod towards the side of overload sensor component, and buffer spring is sheathed on conducting rod and is located at conductive sheet b and conductive sheet a
Between portion of external, and its elastic force driving conductive sheet b does the movement far from conductive sheet a, and buffer spring is insulating materials
It is made, the conduct piece is provided with two groups and respectively conduct piece one, conduct piece two；
The transition piece is set to conduct piece towards the side of overload sensor component, and transition piece includes guide post, conductive plate, separation
Spring restores bar, and guide post is fixed in install housing vertically and it is made of insulating material, and conductive plate is movably installed in outside guide post
Portion simultaneously constitutes slide-and-guide cooperation and its surface for being located at conductive sheet b；
The cut spring be sheathed on the portion of external that guide post is located at below conductive plate and its elastic force driving conductive plate do it is separate
The movement of conductive sheet b, and cut spring is made of insulating material, and the recovery bar is fixed on the upper surface of conductive plate vertically
And its top is extend out to outside install housing；
The circuit connection mechanism includes lug plate group, and lug plate group includes lug plate a, lug plate b, lug plate c, lug plate
D, lug plate a and lug plate b be each attached in install housing and be located at overload sensor component deviate from circuit connection component one
One end that side and the two deviate from overload sensor component is supply terminals and extend out to outside install housing；
The lug plate c and lug plate d is both secured in install housing and is located at circuit connection component away from overload induction structure
The side of part and the two be appliance wiring end away from one end of circuit connection component and extend out to outside install housing and
The other end of lug plate c is connect with the conductive sheet a of conduct piece one；
The power firestreak is connect with the supply terminals of lug plate a, and the supply terminals of zero-power line and lug plate b connect
It connects；
Between conductive sheet a, the lug plate b and lug plate d of the lug plate a and junction pole a, junction pole b and conduct piece two
It is attached by electric wire；
The electrical equipment is connected serially between lug plate c and lug plate d；
The protector body further includes overload alarming mechanism, the overload alarming mechanism include fixed frame, conductive sheet c,
Warning light, fixed frame are fixed in install housing, conductive sheet c is fixed on fixed frame and conductive sheet c be located at conductive plate just on
Side, conductive sheet c are provided with two groups；
The warning light by electric wire be connected serially to one group of conductive sheet c and circuit connection component conduct piece two conductive sheet a it
Between；
Another group of conductive sheet c connects with lug plate b；
The automatic trigger tripper is set between overload sensor component and circuit connection component, automatic trigger open circuit dress
It sets including limiting mechanism, trigger mechanism, resetting-mechanism, limiting mechanism is done under the effect of cut spring elastic force for limiting conductive plate
Movement far from conductive sheet b, trigger mechanism are used to be triggered and made by overload sensor component limiting mechanism revocation to the limit of conductive plate
System, resetting-mechanism is for assisting automatic initiating device to restore to original state.
Further improvement as the technical program.
The protection mechanism is provided with several groups, and lug plate c/ lug plate d is correspondingly arranged on several groups, wherein one group of guarantor
Shield mechanism, one group of lug plate c/ lug plate d, it connects between power supply fire/zero curve, the overload sensor component of remaining protection mechanism is in parallel
To and on the concatenated overload sensor component of power supply, remaining lug plate d be connected in parallel to on the concatenated lug plate d of power supply；
The overload alarming mechanism is correspondingly arranged on several groups, wherein another group of conductive sheet c of one group of overload alarming mechanism with
Lug plate b series connection, another group of conductive sheet c of remaining overload alarming mechanism are connected in parallel to and the concatenated overload alarming mechanism of lug plate b
Another group of conductive sheet c on；
The automatic trigger tripper is correspondingly arranged on several groups.
Further improvement as the technical program.
The limiting mechanism includes drive rod, rotating plate, interlock plate, restraining plate, the support frame being fixed in install housing,
The drive rod level, which is fixed on, to be restored on bar and is located to restore bar towards the side of overload sensor component, the support frame
On be provided with the shaft for being axially parallel to range direction between two groups of conduct pieces, shaft be provided with two groups and respectively shaft one,
Shaft two above shaft one, the rotating plate, interlock plate, restraining plate big face be each perpendicular to shaft axial direction；
The restraining plate horizontal anomalous movement is installed on one outside of shaft and one can axially rotate around the shaft, and restraining plate is located at shaft
One offers the restraint slot through it along one axial width of shaft towards the side of overload sensor component, the upper surface of restraining plate,
And restraint slot is close to shaft one；
The interlock plate be movably installed in the outside of shaft two and can around the shaft two it is axial rotate, interlock plate is towards the end of restraining plate
Face offers the linked slot through it along one axial width of shaft, and the end face is additionally provided with the pact that free end is located in restraint slot
Beam protrusion, constraint protrusion is matched with restraint slot merges the two axial rotation done towards overload sensor component around the shaft of limitation interlock plate；
The rotating plate is movably installed in one outside of shaft and an axial rotation, rotating plate can set around the shaft towards the side for restoring bar
It is equipped with and limits surface and the two contact that raised and limitation protrusion is located at drive rod, rotating plate direction restores the side of bar also
It is provided with and resets protrusion and reset the underface that raised free end is located at conductive plate, the side of rotating plate towards interlock plate is additionally provided with
Traction is raised and the raised free end of traction is located in linked slot；
The motion state of the limiting mechanism can be divided into limitation conductive plate and do under the effect of cut spring elastic force far from conductive sheet b
The revocation state that the restriction state of movement, revocation limit conductive plate.
Further improvement as the technical program.
The trigger mechanism is set between restraining plate and overload sensor component, and trigger mechanism includes touching handle, compression bar, pressure
Bar is movably installed on support frame vertically and can move along itself extending direction, and the bottom end of compression bar and the upper surface of restraining plate connect
Touching；
The touching handle is hingedly mounted on support frame and hinged shaft core line is parallel to the axial direction of shaft one, touches the one of handle
End is located at the surface on compression bar top and the two contact, the other end are located at the surface on top pillar top.
Further improvement as the technical program.
The lower end surface of the restraining plate is provided with support protrusion and support protrusion between shaft one and compression bar, described
Resetting-mechanism be set to the underface of support protrusion, resetting-mechanism includes guide rod, supporting plate, reset spring b；
The guide rod is fixed on support frame vertically, and the supporting plate horizontal anomalous movement is installed on the outside of guide rod and constitutes cunning
Action-oriented cooperation, and the upper surface of supporting plate and support projection contacts, the reset spring b are sheathed on guide rod and are located at supporting plate
The portion of external of lower section and the driving supporting plate rising of its elastic force.
Further improvement as the technical program.
The automatic trigger tripper further includes for circuit between user's hand off power supply and electrical equipment
Manual power cutoff mechanism, manual power cutoff mechanism is set to the surface of compression bar；
The manual power cutoff mechanism includes slide bar, power-off bar, reset spring c, and slide bar is movably installed on support frame simultaneously vertically
Slide-and-guide cooperation is constituted, the top of slide bar is also horizontally fixed with pressing plate and the lower end surface of pressing plate is contacted with touching handle, and power-off bar is perpendicular
It is directly fixed on the upper surface of pressing plate and its top extend out to install housing, reset spring c is sheathed on slide bar and is located at below pressing plate
Portion of external and its elastic force driving pressing plate and power-off bar rising.
The beneficial effect of the present invention compared with prior art is that the protector body under overload keeps automatic trigger disconnected
Road device is triggered and cuts off the current flowing of therein, thus achieve the purpose that circuit overloads are protected, wherein protector
Whether ontology is overloaded using the cooperation sensor circuit electric current of expand with heat and contract with cold fluid and inductive reactance, and sensitivity is sensitiveer, simultaneously
Overload alarming mechanism be able to use family understand in real time circuit whether overload and circuit overloads after whether restored original state, remove this
Except, user excludes overload fault and standing a period of time hand can make protector body extensive by the recovery bar of circuit connection component
Shape is restored, i.e. circuit restores normal, carries out disassembly recovery to protector body without user, it is simpler convenient and safe to operate
Property greatly enhances.
Detailed description of the invention
Fig. 1 is complete machine structure schematic diagram of the invention.
Fig. 2 is complete machine structure schematic diagram of the invention.
Fig. 3 is schematic diagram of internal structure of the invention.
Fig. 4 is schematic diagram of internal structure of the invention.
Fig. 5 is schematic diagram of internal structure of the invention.
Fig. 6 is inside top figure of the invention.
Fig. 7 is the structural schematic diagram of circuit connection mechanism of the invention.
Fig. 8 is the structural schematic diagram of overload sensor component of the invention.
Fig. 9 is the schematic internal view of overload sensor component of the invention.
Figure 10 is the cooperation figure of circuit connection component of the invention, overload alarming mechanism, automatic trigger tripper.
Figure 11 is the cooperation figure of circuit connection component of the invention, overload alarming mechanism, automatic trigger tripper.
Figure 12 is the structural schematic diagram of circuit connection component of the invention.
Figure 13 is the structural schematic diagram of overload alarming mechanism of the invention.
Figure 14 is the structural schematic diagram of automatic trigger tripper of the invention.
Figure 15 is the structural schematic diagram of limiting mechanism of the invention.
Figure 16 is the structural schematic diagram of limiting mechanism of the invention.
Figure 17 is the structural schematic diagram of resetting-mechanism of the invention.
Figure 18 is the structural schematic diagram of trigger mechanism of the invention.
Figure 19 is the structural schematic diagram of manual power cutoff mechanism of the invention.
Specific embodiment
The present invention is excellent using the protector body internal current circulation under automatic trigger tripper cutting overload
More property is, the protector body under overload makes automatic trigger tripper be triggered and by the current flowing of therein
Cutting, to achieve the purpose that circuit overloads are protected, wherein protector body matching using expand with heat and contract with cold fluid and inductive reactance
Close whether sensor circuit electric current overloads, sensitivity is sensitiveer, while overload alarming mechanism is able to use family and understands circuit in real time
Whether overload and circuit overloads after whether restored original state, in addition to this, user exclude overload fault simultaneously stand a period of time
Hand can make protector body restore to the original state by the recovery bar of circuit connection component, i.e., circuit restores normal, without user to guarantor
Shield device ontology carries out disassembly recovery, operates simpler convenient and safety and greatly enhances.
Current over-load protector, including protector body 100, automatic trigger tripper 200, protector body 100 are used
Current flowing between power supply and electrical equipment and can automatic sensing circuital current whether overload, automatic trigger tripper
200 for by the triggering of protector body 100 under circuital current overload and the electric current stream inside tripping protection device ontology 100
It is logical.
The protector body 100 includes horizontal positioned install housing, is equipped with circuit connection machine in install housing
Structure 120, protection mechanism, circuit connection mechanism 120 is for the circuit connection between power supply, electrical equipment, protection mechanism, mounting cup
Pedestal is further fixedly arranged in shell.
The protection mechanism includes overload sensor component 110, circuit connection component 130, and overload sensor component 110 is used for
Whether automatic sensing circuital current overloads, and circuit connection component 130 is used to control the circuit between source current and electrical equipment
Circulation, and circuit connection component 130 can be divided into closed state, the disconnection power supply for so that electric current is smoothly delivered to electrical equipment by power supply
The off-state of current flowing between electrical equipment.
The overload sensor component 110 includes liquid storage cylinder 111, piston 113, top pillar 114, reset spring a115, electric current
Induction pieces, liquid storage cylinder 111 is fixed on vertically on pedestal and its top coaxially offers perforating, bottom end offers and stretches out hole, living
Plug 113 is set in liquid storage cylinder 111 and constitutes slide-and-guide cooperation, and one end of top pillar 114 is fixedly connected with piston 113, is another
End is across perforating and is located at right above liquid storage cylinder 111, one end of reset spring a115 and the conflict of piston 113, the other end and storage
The top of fluid cylinder 111 contradicts and the elastic force of reset spring a115 makes piston 113 do the movement close to 111 bottom end of liquid storage cylinder.
The electric current induction pieces include inductive reactance 116, and 116 level of inductive reactance is fixed in liquid storage cylinder 111 and position
In the underface of piston 113, the bottom of inductive reactance 116 is additionally provided with junction pole and the bottom end of junction pole passes through stretching Kong Bingwei
Immediately below liquid storage cylinder 111, junction pole is provided with two groups and respectively junction pole a117, junction pole b118, and it is corresponding to stretch out hole
Offer two groups.
The top of the inductive reactance 116, which also matches, is provided with heat conductive isolation sheet, and heat conductive isolation sheet and piston 113 it
Between region be provided with the fluid that expands with heat and contract with cold.
The overload sensor component 110 can be divided into that the overload for thermal expansion of expanding with heat and contract with cold, expand with heat and contract with cold fluid
Shrinkage simultaneously restores to the normal condition of original state.
When circuital current overload, inductive reactance 116 generates amount of heat and makes thermal expansion of expanding with heat and contract with cold, overload sense
Component 110 is answered to switch to overload, so that 113/ top pillar 114 of piston is made to do the movement far from inductive reactance 116, eventually by
Automatic trigger tripper 200 makes circuit connection component 130 switch to off-state, i.e. circuit disconnects；Electrician, which checks, excludes electricity
Road overload fault and after static a period of time, i.e., overload sensor component 110 switches to normal condition and circuit overloads failure is arranged
It removes, 113/ top pillar 114 of piston does movement and the recovery close to inductive reactance 116 under the elastic force effect of reset spring a115 at this time
To original state, circuit connection component 130 is set to switch to closed state eventually by automatic trigger tripper 200, circuit restores just
Often.
Preferably, restore to shorten 116 temperature of inductive reactance to normal required time, 111 face of liquid storage cylinder
Itself circumferencial direction array is provided with several groups cooling wind blade 112 in the periphery of inductive reactance 116.
The circuit connection component 130 includes conduct piece, transition piece, and conduct piece includes conductive sheet a131, conducting rod
132, conductive sheet b133, buffer spring 134, conductive sheet a131 are fixed in install housing, and conducting rod 132 is fixed on conduction vertically
Piece a131 is towards one end of overload sensor component 110 and the other end of conductive sheet a131 is connecting pin, conductive sheet b133 activity peace
Loaded on 132 outside of conducting rod and slide-and-guide cooperation is constituted, and conductive sheet b133 is located at conducting rod 132 towards overload sensor component
110 side, buffer spring 134 are sheathed on portion of external of the conducting rod 132 between conductive sheet b133 and conductive sheet a131,
And its elastic force driving conductive sheet b133 does the movement far from conductive sheet a131, and buffer spring 134 is made of insulating materials, institute
The conduct piece stated is provided with two groups and respectively conduct piece one, conduct piece two.
The transition piece be set to conduct piece towards overload sensor component 110 side, transition piece include guide post 135,
Conductive plate 136, cut spring 137 restore bar 138, and guide post 135 is fixed in install housing vertically and it is by insulating materials system
At, conductive plate 136 be movably installed in 135 outside of guide post and constitute slide-and-guide cooperation and its be located at conductive sheet b133 just on
Side.
The cut spring 137 is sheathed on portion of external and the driving of its elastic force that guide post 135 is located at 136 lower section of conductive plate
Conductive plate 136 does the movement far from conductive sheet b133, and cut spring 137 is made of insulating material, the recovery bar 138
It is fixed on the upper surface of conductive plate 136 vertically and its top is extend out to outside install housing.
When circuit does not overload, overload sensor component 110 is in normal condition, and automatic trigger tripper 200 is not at this time
It is triggered and limits conductive plate 136 and do the movement far from conductive sheet b133 under the effect of 137 elastic force of cut spring, so that circuit connects
Connection member 130 is in closed state；When circuit overloads, overload sensor component 110 is in overload and keeps automatic trigger disconnected
Road device 200 is triggered, and automatic trigger tripper 200 cancels the limitation to conductive plate 136, and conductive plate 136 is in cut spring
The movement far from conductive sheet b133 is done under the effect of 137 elastic force, so that circuit connection component 130 is in an off state.
The circuit connection mechanism 120 include lug plate group, lug plate group include lug plate a121, lug plate b122,
Lug plate c123, lug plate d124, lug plate a121 and lug plate b122 are each attached in install housing and positioned at overload sense
Answer component 110 away from circuit connection component 130 side and the two away from overload sensor component 110 one end be that power supply connects
Line end is simultaneously extend out to outside install housing.
The lug plate c123 and lug plate d124 is both secured in install housing and is located at the back of circuit connection component 130
Side and the two from overload sensor component 110 are appliance wiring end and extend out to away from one end of circuit connection component 130
Outside install housing and the other end of lug plate c123 is connect with the conductive sheet a131 of conduct piece one.
The power firestreak is connect with the supply terminals of lug plate a121, the power supply of zero-power line and lug plate b122
Terminals connection.
Conductive sheet a131, the lug plate of the lug plate a121 and junction pole a117, junction pole b118 and conduct piece two
It is attached by electric wire between b122 and lug plate d124.
The electrical equipment is connected serially between lug plate c123 and lug plate d124.
When circuit does not overload, i.e., sensor component 110 is in normal condition to overload, circuit connection component 130 is in closed form
When state, source current can by lug plate a121, electric current induction pieces, conduct piece two, transition piece, conduct piece one, lug plate c123,
Electrical equipment, lug plate d124, lug plate b122 constitute complete circuit closed circuit；Work as circuit overloads, i.e. overload induction structure
When part 110 is in overload, circuit connection component 130 is in an off state, electric current disconnects circulation, that is, can reach protection circuit
And the purpose of electrical equipment.
Preferably, in order to increase operation rate, even if this overload protective device can connect and protect multiple groups electrical equipment and multiple groups
It is not interfere with each other between electrical equipment, the protection mechanism is correspondingly arranged on several groups, and lug plate c123/ lug plate d124 is corresponding
Several groups are provided with, wherein connect between one group of protection mechanism, one group of lug plate c123/ lug plate d124, power supply fire/zero curve,
The overload sensor component 110 of remaining protection mechanism be connected in parallel to on the concatenated overload sensor component 110 of power supply, remaining lug plate
D124 is connected in parallel to on the concatenated lug plate d124 of power supply, and wherein parallel is the prior art, and details are not described herein again.
More specifically, the automatic turn-off current circulation in circuit overloads of automatic trigger tripper 200, stands one
The section time can make to overload the recovery of sensor component 110 to original state, and circuit restores therewith to original state, in order to which user understands electricity in real time
Road whether overload and circuit overloads after whether restored original state, the protector body 100 further includes overload alarming mechanism
140, and overload alarming mechanism 140 is correspondingly arranged on several groups.
The overload alarming mechanism 140 includes fixed frame 141, conductive sheet c142, warning light 143, and fixed frame 141 is fixed
In in install housing, conductive sheet c142 is fixed on fixed frame 141 and conductive sheet c142 is located at the surface of conductive plate 136, is led
Electric piece c142 is provided with two groups.
The warning light 143 is connected serially to leading for one group of conductive sheet c142 and set of circuits connecting elements 130 by electric wire
Between the conductive sheet a131 of electric part two.
Another group of conductive sheet c142 of one group of overload alarming mechanism 140 connects with lug plate b122, residue overload
Another group of conductive sheet c142 of alarm mechanism 140 is connected in parallel to another group with the concatenated overload alarming mechanism 140 of lug plate b122
On conductive sheet c142, wherein series/parallel connection type is the prior art, and details are not described herein again.
When circuit overloads, overload sensor component 110 is in overload and touches automatic trigger tripper 200
Hair, automatic trigger tripper 200 cancel the limitation to conductive plate 136, and conductive plate 136 is under the effect of 137 elastic force of cut spring
The movement far from conductive sheet b133 is done, so that circuit connection component 130 is in an off state, at the same time, conductive plate 136 and mistake
Two groups of conductive sheet c142 contact of alarm mechanism 140 is carried, source current passes through lug plate a121, electric current induction pieces, conduction at this time
Part two, warning light 143, conductive plate 136 and two groups of conductive sheet c142, lug plate b122 constitute complete circuit closed circuit, show
Warning lamp 143 is lighted；
When circuit does not overload, two groups of conductive sheet c142 of conductive plate 136 and overload alarming mechanism 140 are not in contact with warning light 143
It is non-lit up, user can be lighted according to warning light 143 situation understand in real time circuit whether overload and circuit overloads after it is whether extensive
Original state is answered.
The automatic trigger tripper 200 is set between overload sensor component 110 and circuit connection component 130,
And automatic trigger tripper 200 is correspondingly arranged on several groups, automatic trigger tripper 200 includes limiting mechanism 210, triggering
Mechanism 220, resetting-mechanism 230, limiting mechanism 210 for limit conductive plate 136 137 elastic force of cut spring effect under do it is separate
The movement of conductive sheet b133, trigger mechanism 220 are used to be triggered by overload sensor component 110 and make the revocation of limiting mechanism 210 to leading
The limitation of battery plate 136, resetting-mechanism 230 is for assisting automatic initiating device 200 to restore to original state.
The limiting mechanism 210 includes drive rod 212, rotating plate 211, interlock plate 213, restraining plate 214, is fixed on installation
Support frame in housing, 212 level of drive rod, which is fixed on, to be restored on bar 138 and is located to restore bar 138 towards overload sense
The side of component 110 is answered, the shaft for being axially parallel to range direction between two groups of conduct pieces is provided on the support frame, is turned
Axis is provided with two groups and respectively shaft one, the shaft two above shaft one, the rotating plate 211, interlock plate 213, about
The big face of beam plate 214 is each perpendicular to shaft axial direction.
214 horizontal anomalous movement of restraining plate is installed on one outside of shaft and can an axial rotation, and restraining plate around the shaft
214 are located at shaft one towards the side of overload sensor component 110, and the upper surface of restraining plate 214 is offered through it along shaft one
The restraint slot of axial width, and restraint slot is close to shaft one.
The interlock plate 213 is movably installed in two outside of shaft and two can axially rotate around the shaft, 213 direction of interlock plate
The end face of restraining plate 214 offers the linked slot 218 through it along one axial width of shaft, and the end face is additionally provided with free end
Constraint protrusion in restraint slot, constraint protrusion and restraint slot limit interlock plate 213 and two axially do direction around the shaft with merging
Overload the rotation of sensor component 110.
The rotating plate 211 be movably installed in the outside of shaft one and can around the shaft one it is axial rotate, rotating plate 211 is towards recovery
The side of bar 138 is arranged restricted raised 215 and limitation protrusion 215 is located at the surface of drive rod 212 and the two contacts,
Rotating plate 211, which is additionally provided with reset protrusion 217 towards the side for restoring bar 138 and resets raised 217 free ends, is located at conductive plate 136
Underface, the side of rotating plate 211 towards interlock plate 213, which is additionally provided with traction protrusion 216 and draws raised 216 free ends, to be located at
In linked slot 218.
The motion state of the limiting mechanism 210 can be divided into limitation conductive plate 136 under the effect of 137 elastic force of cut spring
Do the restriction state far from conductive sheet b133 movement, the revocation state that revocation limits conductive plate 136.
When circuit overloads, the top pillar 114 of overload sensor component 110 rises and contacts with trigger mechanism 220, trigger mechanism
220 are triggered and restraining plate 214 are made to do the rotation away from interlock plate 213, and the constraint protrusion being set on interlock plate 213 at this time is de-
From restraint slot, then under the elastic force effect of cut spring 137, circuit connection component 130 switches to off-state, restores simultaneously
Bar 138, which rises, and traction drive bar 212 is synchronous rises, and drive rod 212 rises and so that rotating plate 211 is done court by limitation protrusion 215
Rotation to interlock plate 213, the rotation of interlock plate 213 simultaneously make interlock plate 213 by traction protrusion 216 and the cooperation of linked slot 218
It does away from the rotation for restoring bar 138, i.e. limiting mechanism 210 switches to revocation state；
When circuit restores normal, the top pillar 114 of overload sensor component 110 declines and restores to original state, trigger mechanism 220 with about
Beam plate 214 restores under the booster action of resetting-mechanism 230 therewith to original state, and then user's hand makes under it by bar 138 is restored
Drop restores the decline of bar 138 and the synchronous decline of traction drive bar 212, when drive rod 212 drops to the lower section of limitation protrusion 215,
Conductive plate 136 contacts with reset protrusion 217 and rotating plate 211 is made to do the rotation away from interlock plate 213, and interlock plate 213, which rotates, simultaneously to be led to
The cooperation for crossing traction protrusion 216 and linked slot 218 does interlock plate 213 towards the rotation for restoring bar 138 and finally makes to be set to
Constraint protrusion on interlock plate 213 is located in restraint slot again, and limiting mechanism 210 restores to restriction state, subsequent user pine
Hand, drive rod 212 rise and contact again and circuit connection component 130 switches to closed state with limitation protrusion 215.
The trigger mechanism 220 is set between restraining plate 214 and overload sensor component 110, and trigger mechanism 220 includes
Handle 221, compression bar 222 are touched, compression bar 222 is movably installed on support frame vertically and can move along itself extending direction, and compression bar 222
Bottom end and restraining plate 214 upper end face contact.
The touching handle 221 is hingedly mounted on support frame and hinged shaft core line is parallel to the axial direction of shaft one,
One end of touching handle 221 is located at the surface on 222 top of compression bar and the two contact, the other end are located at the surface on 114 top of top pillar.
When circuit overloads, the top pillar 114 of overload sensor component 110 rises and contacts with touching handle 221 and push touching handle
221 axially rotate around its articulated shaft between support frame, and touching handle 221 rotates and compression bar 222 is pushed to decline, and compression bar 222 declines
And restraining plate 214 is made to do the rotation away from interlock plate 213.
The lower end surface of the restraining plate 214 is provided with support protrusion 219 and support protrusion 219 is located at shaft one and compression bar
Between 222, the resetting-mechanism 230 is set to the underface of support protrusion 219, and resetting-mechanism 230 includes guide rod 231, holds
Supporting plate 232, reset spring b233.
The guide rod 231 is fixed on support frame vertically, and 232 horizontal anomalous movement of supporting plate is installed on guide rod 231
Outside and constitute slide-and-guide cooperation, and the upper surface of supporting plate 232 is contacted with support protrusion 219, the reset spring
B233 is sheathed on portion of external and the driving rising of supporting plate 232 of its elastic force that guide rod 231 is located at 232 lower section of supporting plate.
When circuit restores normal, the top pillar 114 of overload sensor component 110 declines and restores to original state, while resetting bullet
The elastic force driving supporting plate 232 of spring b233 rises, and supporting plate 232 rises and does restraining plate 214 towards interlock plate 213 and turns
Dynamic, i.e., restraining plate 214 restores to original state, while trigger mechanism 220 restores together therewith to original state.
More specifically, when the processing such as being replaced, being repaired to electrical equipment, first having to cut off the power is set with electric appliance
Circuit between standby, for this purpose, the automatic trigger tripper 200 further includes for user's hand off power supply and electric appliance
The manual power cutoff mechanism 240 of circuit, manual power cutoff mechanism 240 are set to the surface of compression bar 222 between equipment.
The manual power cutoff mechanism 240 includes slide bar 241, power-off bar 242, reset spring c243, and slide bar 241 is living vertically
Dynamic to be installed on support frame and constitute slide-and-guide cooperation, the top of slide bar 241 is also horizontally fixed with the lower end of pressing plate and pressing plate
Face is contacted with touching handle 221, and power-off bar 242 is fixed on the upper surface of pressing plate vertically and its top extend out to install housing, resets bullet
Spring c243 is sheathed on the portion of external that slide bar 241 is located at below pressing plate and its elastic force driving pressing plate and power-off bar 242 rise.
When the processing such as being replaced, being repaired to electrical equipment, user can hand by power-off bar 242 can make compression bar 222
Decline, to make that limiting mechanism 210 switches to revocation state, circuit connection component 130 switches to off-state.
In actual work, if when circuit overloads, it is swollen that inductive reactance 116 generates amount of heat and making fluid thermal of expanding with heat and contract with cold
Swollen, overload sensor component 110 switches to overload, so that 113/ top pillar 114 of piston be made to do the rising far from inductive reactance 116
Movement, top pillar 114 rise and contact with touching handle 221 and touching handle 221 is pushed axially to turn around its articulated shaft between support frame
Dynamic, touching handle 221 rotates and compression bar 222 is pushed to decline, and compression bar 222 declines and does restraining plate 214 and turns away from interlock plate 213
Dynamic, the constraint protrusion being set on interlock plate 213 at this time is detached from restraint slot, then under the elastic force effect of cut spring 137, electricity
Road connecting elements 130 switches to off-state, while restoring bar 138 and rising the synchronous rising of simultaneously traction drive bar 212, drive rod
212 rise and so that rotating plate 211 is done the rotation towards interlock plate 213 by limitation protrusion 215, and interlock plate 213 rotates and by leading
The cooperation for drawing protrusion 216 and linked slot 218 does interlock plate 213 away from the rotation for restoring bar 138, i.e. limiting mechanism 210 switches
To revocation state, wherein circuit connection component 130 switch to off-state circuit can be made to disconnect between electrical equipment and power supply,
And achieve the purpose that protect circuit；
Electrician checked exclusion circuit overloads failure and after static a period of time, that is, overloaded sensor component 110 and switch to normal condition
And circuit overloads failure is excluded, 113/ top pillar 114 of piston is done under the elastic force effect of reset spring a115 by near-induction at this time
The descending motion of resistance 116 simultaneously restores to original state, while the elastic force driving supporting plate 232 of reset spring b233 rises, supporting plate
232 rise and restraining plate 214 are made to do the rotation towards interlock plate 213, i.e. restraining plate 214 restores to original state and trigger mechanism 220
Restore together therewith to original state, then user's hand makes its decline by bar 138 is restored, and restores the decline of bar 138 and traction drive bar
212 synchronous declines, when drive rod 212 drops to the lower section of limitation protrusion 215, conductive plate 136 contacts simultaneously with protrusion 217 is resetted
Rotating plate 211 is set to do the rotation away from interlock plate 213, interlock plate 213 rotates and matching by traction protrusion 216 and linked slot 218
Closing makes interlock plate 213 do the rotation towards recovery bar 138 and finally makes the constraint protrusion being set on interlock plate 213 position again
In in restraint slot, limiting mechanism 210 restores to restriction state, and subsequent user looses one's grip, and the rising of drive rod 212 is simultaneously raised with limitation
215 contacts and circuit connection component 130 switches to closed state again, circuit restores normal.
Claims (10)
1. current over-load protector, which is characterized in that it includes protector body, automatic trigger tripper, protector body
For the current flowing between power supply and electrical equipment and can automatic sensing circuital current whether overload, automatic trigger tripper
For by the current flowing of protector body triggering and tripping protection device body interior under circuital current overload；
The protector body includes horizontal positioned install housing, and circuit connection mechanism, protection are equipped in install housing
Mechanism, circuit connection mechanism is for power supply, electrical equipment, the circuit connection between protection mechanism, and also fixation is set in install housing
It is equipped with pedestal；
The protection mechanism includes overload sensor component, circuit connection component, and overload sensor component is used for automatic sensing circuit
Whether electric current overloads, and circuit connection component is used to control the circuit circulation between source current and electrical equipment, and circuit connection
Component, which can be divided into, makes electric current smoothly be delivered to the closed state of electrical equipment by power supply, disconnect electric current between power supply and electrical equipment
The off-state of circulation；
The overload sensor component includes liquid storage cylinder, piston, top pillar, reset spring a, electric current induction pieces, and liquid storage cylinder is solid vertically
Coaxially offer perforating due on pedestal and its top, bottom end offers and stretches out hole, piston is set in liquid storage cylinder and constitutes
Slide-and-guide cooperation, one end of top pillar is fixedly connected with the piston, the other end passes through perforating and is located at right above liquid storage cylinder, is resetted
One end of spring a and the top of piston conflict, the other end and liquid storage cylinder contradict and the elastic force of reset spring a does piston close to storage
The movement of fluid cylinder bottom end.
2. current over-load protector according to claim 1, which is characterized in that the electric current induction pieces include induced electricity
Resistance, inductive reactance level are fixed on the underface in liquid storage cylinder and being located at piston, and the bottom of inductive reactance is additionally provided with junction pole
And the bottom end of junction pole passes through and stretches out hole and be located at immediately below liquid storage cylinder, junction pole is provided with two groups and respectively junction pole a, connects
Line bar b, and stretch out hole correspondence and offer two groups.
3. current over-load protector according to claim 2, which is characterized in that the top of the inductive reactance also matches
It is provided with heat conductive isolation sheet, and the region between heat conductive isolation sheet and piston is provided with the fluid that expands with heat and contract with cold；
The overload sensor component can be divided into the overload for thermal expansion of expanding with heat and contract with cold, expand with heat and contract with cold fluid cold-shrinkage and extensive
The multiple normal condition to original state；
The periphery that the liquid storage cylinder is right against inductive reactance is provided with several groups cooling wind blade along itself circumferencial direction array；
The circuit connection component includes conduct piece, transition piece, and conduct piece includes conductive sheet a, conducting rod, conductive sheet b, buffering
Spring, conductive sheet a are fixed in install housing, conducting rod be fixed on vertically conductive sheet a towards overload sensor component one end and
The other end of conductive sheet a is connecting pin, and conductive sheet b is movably installed in outside conducting rod and constitutes slide-and-guide cooperation, and conductive
Piece b is located at conducting rod towards the side of overload sensor component, and buffer spring is sheathed on conducting rod and is located at conductive sheet b and conductive sheet a
Between portion of external, and its elastic force driving conductive sheet b does the movement far from conductive sheet a, and buffer spring is insulating materials
It is made, the conduct piece is provided with two groups and respectively conduct piece one, conduct piece two.
4. current over-load protector according to claim 2 or 3, which is characterized in that the transition piece is set to conduction
Part is towards the side of overload sensor component, and transition piece includes guide post, conductive plate, cut spring, restores bar, and guide post is fixed on vertically
In install housing and it is made of insulating material, and conductive plate is movably installed in outside guide post and constitutes slide-and-guide cooperation and its position
In the surface of conductive sheet b；
The cut spring be sheathed on the portion of external that guide post is located at below conductive plate and its elastic force driving conductive plate do it is separate
The movement of conductive sheet b, and cut spring is made of insulating material, and the recovery bar is fixed on the upper surface of conductive plate vertically
And its top is extend out to outside install housing.
5. current over-load protector according to claim 4, which is characterized in that the circuit connection mechanism includes wiring
Piece group, lug plate group include lug plate a, lug plate b, lug plate c, lug plate d, and lug plate a and lug plate b are each attached in peace
Fill housing in and be located at overload sensor component away from circuit connection component side and the two away from overload sensor component one end
It is supply terminals and extend out to outside install housing；
The lug plate c and lug plate d is both secured in install housing and is located at circuit connection component away from overload induction structure
The side of part and the two be appliance wiring end away from one end of circuit connection component and extend out to outside install housing and
The other end of lug plate c is connect with the conductive sheet a of conduct piece one；
The power firestreak is connect with the supply terminals of lug plate a, and the supply terminals of zero-power line and lug plate b connect
It connects；
Between conductive sheet a, the lug plate b and lug plate d of the lug plate a and junction pole a, junction pole b and conduct piece two
It is attached by electric wire；
The electrical equipment is connected serially between lug plate c and lug plate d；
The protector body further includes overload alarming mechanism, the overload alarming mechanism include fixed frame, conductive sheet c,
Warning light, fixed frame are fixed in install housing, conductive sheet c is fixed on fixed frame and conductive sheet c be located at conductive plate just on
Side, conductive sheet c are provided with two groups；
The warning light by electric wire be connected serially to one group of conductive sheet c and circuit connection component conduct piece two conductive sheet a it
Between；
Another group of conductive sheet c connects with lug plate b；
The automatic trigger tripper is set between overload sensor component and circuit connection component, automatic trigger open circuit dress
It sets including limiting mechanism, trigger mechanism, resetting-mechanism, limiting mechanism is done under the effect of cut spring elastic force for limiting conductive plate
Movement far from conductive sheet b, trigger mechanism are used to be triggered and made by overload sensor component limiting mechanism revocation to the limit of conductive plate
System, resetting-mechanism is for assisting automatic initiating device to restore to original state.
6. current over-load protector according to claim 1, which is characterized in that the protection mechanism is provided with several
Group, lug plate c/ lug plate d are correspondingly arranged on several groups, wherein one group of protection mechanism, one group of lug plate c/ lug plate d, power supply
It connects between fire/zero curve, the overload sensor component of remaining protection mechanism is connected in parallel to on the concatenated overload sensor component of power supply, is remained
Remaining lug plate d be connected in parallel to on the concatenated lug plate d of power supply；
The overload alarming mechanism is correspondingly arranged on several groups, wherein another group of conductive sheet c of one group of overload alarming mechanism with
Lug plate b series connection, another group of conductive sheet c of remaining overload alarming mechanism are connected in parallel to and the concatenated overload alarming mechanism of lug plate b
Another group of conductive sheet c on；
The automatic trigger tripper is correspondingly arranged on several groups.
7. current over-load protector according to claim 6, which is characterized in that the limiting mechanism include drive rod,
Rotating plate, interlock plate, restraining plate, the support frame being fixed in install housing, the drive rod level, which is fixed on, to be restored on bar simultaneously
Positioned at the side for restoring bar direction overload sensor component, it is provided with and is axially parallel between two groups of conduct pieces on the support frame
The shaft of range direction, shaft are provided with two groups and respectively shaft one, the shaft two above shaft one, and described turns
Plate, interlock plate, restraining plate big face be each perpendicular to shaft axial direction；
The restraining plate horizontal anomalous movement is installed on one outside of shaft and one can axially rotate around the shaft, and restraining plate is located at shaft
One offers the restraint slot through it along one axial width of shaft towards the side of overload sensor component, the upper surface of restraining plate,
And restraint slot is close to shaft one；
The interlock plate be movably installed in the outside of shaft two and can around the shaft two it is axial rotate, interlock plate is towards the end of restraining plate
Face offers the linked slot through it along one axial width of shaft, and the end face is additionally provided with the pact that free end is located in restraint slot
Beam protrusion, constraint protrusion is matched with restraint slot merges the two axial rotation done towards overload sensor component around the shaft of limitation interlock plate；
The rotating plate is movably installed in one outside of shaft and an axial rotation, rotating plate can set around the shaft towards the side for restoring bar
It is equipped with and limits surface and the two contact that raised and limitation protrusion is located at drive rod, rotating plate direction restores the side of bar also
It is provided with and resets protrusion and reset the underface that raised free end is located at conductive plate, the side of rotating plate towards interlock plate is additionally provided with
Traction is raised and the raised free end of traction is located in linked slot；
The motion state of the limiting mechanism can be divided into limitation conductive plate and do under the effect of cut spring elastic force far from conductive sheet b
The revocation state that the restriction state of movement, revocation limit conductive plate.
8. current over-load protector according to claim 7, which is characterized in that the trigger mechanism is set to restraining plate
Between overload sensor component, trigger mechanism includes touching handle, compression bar, and compression bar is movably installed on support frame vertically and can be along itself
Extending direction movement, and the upper end face contact of the bottom end of compression bar and restraining plate；
The touching handle is hingedly mounted on support frame and hinged shaft core line is parallel to the axial direction of shaft one, touches the one of handle
End is located at the surface on compression bar top and the two contact, the other end are located at the surface on top pillar top.
9. current over-load protector according to claim 8, which is characterized in that the lower end surface of the restraining plate is provided with
Support is raised and support protrusion is between shaft one and compression bar, and the resetting-mechanism is set to the underface of support protrusion,
Resetting-mechanism includes guide rod, supporting plate, reset spring b；
The guide rod is fixed on support frame vertically, and the supporting plate horizontal anomalous movement is installed on the outside of guide rod and constitutes cunning
Action-oriented cooperation, and the upper surface of supporting plate and support projection contacts, the reset spring b are sheathed on guide rod and are located at supporting plate
The portion of external of lower section and the driving supporting plate rising of its elastic force.
10. current over-load protector according to claim 9, which is characterized in that the automatic trigger tripper is also
Including the manual power cutoff mechanism for circuit between user's hand off power supply and electrical equipment, manual power cutoff mechanism is set to
The surface of compression bar；
The manual power cutoff mechanism includes slide bar, power-off bar, reset spring c, and slide bar is movably installed on support frame simultaneously vertically
Slide-and-guide cooperation is constituted, the top of slide bar is also horizontally fixed with pressing plate and the lower end surface of pressing plate is contacted with touching handle, and power-off bar is perpendicular
It is directly fixed on the upper surface of pressing plate and its top extend out to install housing, reset spring c is sheathed on slide bar and is located at below pressing plate
Portion of external and its elastic force driving pressing plate and power-off bar rising.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910416115.1A CN110021505B (en) | 2019-05-19 | 2019-05-19 | Current overload protector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910416115.1A CN110021505B (en) | 2019-05-19 | 2019-05-19 | Current overload protector |
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| Publication Number | Publication Date |
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| CN110021505A true CN110021505A (en) | 2019-07-16 |
| CN110021505B CN110021505B (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910416115.1A Active CN110021505B (en) | 2019-05-19 | 2019-05-19 | Current overload protector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113410107A (en) * | 2021-08-20 | 2021-09-17 | 江西韬瑞自动化设备有限公司 | Circuit protection device with power supply cut-off early warning function based on standby power supply |
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| DE3631405A1 (en) * | 1986-09-16 | 1988-03-17 | Felten & Guilleaume Energie | Hermetically sealed, permanent-magnet trip device for residual current devices (earth leakage current circuit breakers) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113410107A (en) * | 2021-08-20 | 2021-09-17 | 江西韬瑞自动化设备有限公司 | Circuit protection device with power supply cut-off early warning function based on standby power supply |
| CN113410107B (en) * | 2021-08-20 | 2022-01-28 | 江西韬瑞自动化设备有限公司 | Circuit protection device with power supply cut-off early warning function based on standby power supply |
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| CN110021505B (en) | 2021-03-09 |
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