CN106057577B - Using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact - Google Patents
Using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact Download PDFInfo
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- CN106057577B CN106057577B CN201610498559.0A CN201610498559A CN106057577B CN 106057577 B CN106057577 B CN 106057577B CN 201610498559 A CN201610498559 A CN 201610498559A CN 106057577 B CN106057577 B CN 106057577B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
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Abstract
The invention discloses a kind of using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact, including the regular alternating current contactor and the part of electronic unit two being made up of movable contact, normally-closed contact, normally opened contact, dynamic iron core, static iron core, back-moving spring, magnet exciting coil, normally opened auxiliary contact.
Description
Technical field
The present invention relates to Low Voltage Electrical Apparatus, more particularly to one kind to apply special-shaped electric bridge and auxiliary contact, realizes efficiently section
" using the special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact " of electricity.
Background technology
A.C. contactor (Alternating Current Contactor) is a kind of very extensive low tension of application
Device, ending 2015, the A.C. contactor of China's on-line operation surpasses 1,000,000,000, and with annual newly-increased 80,000,000 rate delivery
Increase.Its operation principle is to drive movable contact (movable contact) using electromagnet, makes normally-closed contact (normally
Closed contact) or normally opened contact (normally open contact) separation or closure, reach and be switched off or on circuit
Purpose.It is applied to start or control three phase induction motor and other electrical equipments.
Fig. 1 is the fundamental diagram of regular alternating current contactor.This conventional A.C. contactor is mainly by dynamic iron core, quiet iron
Core, magnet exciting coil, back-moving spring, movable contact, normally-closed contact, normally opened contact are formed.When magnet exciting coil connect AC220V,
During AC110V or AC380V voltages (it is AC voltages or field power supply to be generally called AC220V, AC110V or AC380V below), dynamic iron core
By magnetic force caused by magnet exciting coil effect and with static iron core close, with dynamic iron core linkage movable contact also therewith with normally opened contact
Closure, external circuit will pass through this normally opened contact and connect；When the AC voltages on magnet exciting coil disconnect, dynamic iron core loss of excitation and by multiple
The effect of position spring and separated with static iron core, normally opened contact, which resets, to be disconnected, and external circuit is just cut off therewith.
Fig. 2 is the distribution map of four groups of contacts of regular alternating current contactor.In regular alternating current contactor, " join with dynamic iron core
Dynamic contact " shares four groups, wherein, this three groups of main contacts 1, main contacts 2, main contacts 3 is for switching on or off " three-phase electricity "
Main contacts, another group be " normally closed " or " normally opened " " auxiliary contact K " (and the present invention it is signified " auxiliary contact K " is normally opened auxiliary
Help contact) --- the control for system.
In addition, can also be added in A.C. contactor " auxiliary normally closed interlock ", " auxiliary normally open contact ", " auxiliary normally closed is prolonged
When contact ", " aiding in normally opened delay contact " --- the control for complication system.
The course of work of this conventional A.C. contactor can be divided into " adhesive ", " sticking ", RESET three phases：
1st, adhesive：Magnet exciting coil and AC Voltage On states, dynamic and static iron core adhesive, main contacts 1, main contacts 2, main contacts 3, often
Auxiliary contact K is opened to close therewith.In this stage, to overcome the elastic force of the inertia of dynamic iron core and back-moving spring, field power supply must
Larger power (hereinafter referred to as this power is " adhesive power ") must be provided, dynamic and static iron core could be mutually attracted.
2nd, sticking：Magnet exciting coil continues to continue to keep the state of adhesive with AC Voltage On states, dynamic and static iron core.In this stage,
Field power supply need only provide less power (hereinafter referred to as this power is " holding power "), and dynamic and static iron core can also continue adhesive.If
In this stage, field power supply provides excessive holding power, will cause waste of energy and causes the unnecessary hair of A.C. contactor
Heat heating；
3rd, reset：Magnet exciting coil disconnects AC voltages, dynamic and static iron core RESET separation, main contacts 1, main contacts 2, main contacts
3rd, normally opened auxiliary contact K resets and disconnected therewith.
The purposes of A.C. contactor varies, and structure also varies, but their operation principle is identical with Fig. 1.
Conventional A.C. contactor is deposited due to passing to identical AC voltages in adhesive and sticking stage magnet exciting coil
In following critical defect：
1st, meaningless power consumption：It is preceding already described, it is logical in adhesive and sticking stage, the magnet exciting coil of conventional A.C. contactor
With " identical " AC voltages, make holding power excessive, cause meaningless electric energy loss；
2nd, generate heat：Disastrous effect caused by meaningless electric energy loss is " heating heating ", when serious, or even can be burnt conventional
The magnet exciting coil of A.C. contactor；
3rd, annoying AC noise be present；
For the present situation of prior art, the target of the invention to be reached is：" application electric technology, rebuilding traditional industry ",
The few, performance that designs that a kind of electronic circuit is as far as possible simple, device used is tried one's best exceed it is prior art, efficient electricity-saving " should
With special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact ".
The content of the invention
It is a kind of using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact, including by movable contact MC, normally-closed contact NC,
The regular alternating current that normally opened contact NO, dynamic iron core M, static iron core G, back-moving spring F, magnet exciting coil L, normally opened auxiliary contact K are formed
Contactor and 100 liang of parts of electronic unit, it is characterised in that：Described electronic unit 100 is by control circuit 101, on-off circuit
102nd, special-shaped electric bridge and holding protection circuit 103 form；Described control circuit 101 is four port networks, has 2 ends, 3 ends, N
End, four, public E ends port；Described on-off circuit 102 is three-port network, has 4 ends, 5 ends, three, public E ends port；
Described special-shaped electric bridge and holding protection circuit 103 is five―port network, has 1 end, AC1 ends, DC1 ends, DC2 ends, public E ends
Five ports；Wherein：Described public E ends are connected with described normally opened auxiliary contact K B2 ends and the P2 ends of AC voltages；
The N-terminal of described control circuit 101 is connected with described normally opened auxiliary contact K B1 ends, 2 ends and described special-shaped electric bridge and
1 end of holding protection circuit 103 is connected, 3 ends are connected with 4 ends of described on-off circuit 102；Described special-shaped electric bridge and
The AC1 ends of holding protection circuit 103 are connected with the P1 ends of AC voltages, DC1 ends are connected with described magnet exciting coil L A1 ends
Connect, DC2 ends are connected with described magnet exciting coil L A2 ends and 5 ends of described on-off circuit 102.
Described electronic unit 100 is combined by manner discussed above with regular alternating current contactor, you can forms this hair
Bright signified " using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact ".
Wherein：Described magnet exciting coil L A1 ends, A2 ends can exchange port connection；Described normally opened auxiliary contact K it
B1 ends, B2 ends can also exchange port connection.
Described control circuit 101 can use a variety of circuit structures, present invention employs following by 2 ends, 3 ends, N
End, public E ends, the first electric capacity C1, the second electric capacity C2, first resistor R1, the 4th diode D4, the 5th diode D5 are formed
Circuit, wherein：First electric capacity C1 one end is connected with 2 ends, the connection of the other end and N-terminal；5th diode D5 negative pole, the four or two
Pole pipe D4 positive pole is also connected with N-terminal；4th diode D4 negative pole, first resistor R1 one end, the second electric capacity C2
Positive pole is connected with 3 ends；5th diode D5 positive pole, the first resistor R1 other end, the second electric capacity C2 negative pole with
Public E ends are connected.
Described on-off circuit 102 can use a variety of circuit structures, present invention employs following by 4 ends, 5 ends, public affairs
The circuit that common E ends, the 3rd diode D3, FET FET are formed, wherein：3rd diode D3 positive pole is connected with 5 ends
Connect, negative pole is connected with FET FET drain electrode；FET FET gate is connected with 4 ends, source electrode and public E ends phase
Connection.
Described special-shaped electric bridge and holding protection circuit 103 can use a variety of circuit structures, and the present invention has selected following
Four kinds of circuits：
(a), it is by the first diode D1, the second diode D2, the 3rd electric capacity C3, bilateral transient voltage suppression diode
TVS, AC1 end, DC1 ends, DC2 ends, 1 end and public E ends composition, wherein：First diode D1 positive pole, the second diode D2
Negative pole is connected with AC1 ends；First diode D1 negative pole is connected with DC1 ends；Second diode D2 positive pole and DC2 ends
It is connected；1 end is connected with DC1 ends；3rd electric capacity C3 one end is connected with 1 end, the other end is connected with public E ends；It is double
It is connected to transient voltage suppressor diode TVS one end with AC1 ends, the other end is connected with public E ends.
(b), it is by the first diode D1, the second diode D2, the 3rd electric capacity C3, bilateral transient voltage suppression diode
TVS, AC1 end, DC1 ends, DC2 ends, 1 end and public E ends composition, wherein：First diode D1 positive pole, the second diode D2
Negative pole is connected with AC1 ends；First diode D1 negative pole is connected with DC1 ends；Second diode D2 positive pole DC2 ends phase
Connection；1 end is connected with DC2 ends；3rd electric capacity C3 one end is connected with DC1 ends, the other end is connected with public E ends；It is double
It is connected to transient voltage suppressor diode TVS one end with AC1 ends, the other end is connected with public E ends.
(c), it is by the first diode D1, the second diode D2, the 3rd electric capacity C3, bilateral transient voltage suppression diode
TVS, AC1 end, DC1 ends, DC2 ends, 1 end and public E ends composition, wherein：First diode D1 positive pole, the second diode D2
Negative pole is connected with AC1 ends；First diode D1 negative pole is connected with DC1 ends；Second diode D2 positive pole DC2 ends phase
Connection；1 end is connected with DC2 ends；3rd electric capacity C3 one end is connected with 1 end, the other end is connected with public E ends；It is two-way
Transient voltage suppressor diode TVS one end is connected with AC1 ends, the other end is connected with public E ends.
(d), it is by the first diode D1, the second diode D2, the 3rd electric capacity C3, bilateral transient voltage suppression diode
TVS, AC1 end, DC1 ends, DC2 ends, 1 end and public E ends composition, wherein：First diode D1 positive pole, the second diode D2
Negative pole is connected with AC1 ends；First diode D1 negative pole is connected with DC1 ends；Second diode D2 positive pole DC2 ends phase
Connection；1 end is connected with DC1 ends；3rd electric capacity C3 one end is connected with DC2 ends, the other end is connected with public E ends；It is double
It is connected to transient voltage suppressor diode TVS one end with AC1 ends, the other end is connected with public E ends.
Described normally opened auxiliary contact K can be prolonged with other normal open switch such as contactor auxiliary normally open contact, contactor
When auxiliary normally open contact substitute.
Described FET FET can use for example unidirectional thyratron transistor (Silicon of other switching devices
Controlled Rectifier, SCR), two-way thyratron transistor (Triode AC Switch, TRIAC), insulated gate bipolar
Transistor (Insulatend Gate Bipolar Transistor, IGBT), electron injection enhancement gate transistor
(Injection Enhanced Gate Tansistor, IEGT), SITH (Static Induction
Thyristor, SITH) or switch triode replacement.
Using the present invention, following beneficial effect can be obtained：
1st, efficient electricity-saving：
In order to illustrate the efficient electric energy of the present invention, we have done following test：
(1) power consumption of regular alternating current contactor, is first surveyed：The reputable brand LC1- of certain famous company of state of the world
D1810 type A.C. contactors：For 2.6W；
(2), survey again by technical scheme：Above-mentioned LC1-D1810 types A.C. contactor adds the electronics list of the present invention
The power consumption of " using the special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact " of the present invention meaning of the composition of member 100：For
0.2W；
Measured result shows that compared with international famous brand LC1-D1810 type A.C. contactors, electric energy of the invention can
Up to 92%.
2nd, quiet nothing is made an uproar：
After the birth of nineteen twenty-four the first in the world A.C. contactor, AC noise is with A.C. contactor with regard to " such as shade
With ", industry personnel has reached the stage of " customary, face the fearful with no fears " to the AC noise of regular alternating current contactor.It is international
Famous brand LC1-D1810 types A.C. contactor also has the AC noise of audible when running, the present invention it is signified " using special-shaped electric bridge and
It is then quiet without audible noise when the power-saving alternating-current contactor of auxiliary contact " is run.
3rd, low-heat：The present invention has the function of efficient electricity-saving, has saved electric energy, certainty low-heat during operation.
4th, the electronic circuit of the signified electronic unit 100 of the present invention is succinct, and element used is few, if making institute with surface mount elements
The PCB for the electronic unit 100 stated, then the PCB can be integrated into A.C. contactor, be made that outward appearance tightly plays it is integrated " should
With special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact ".
5th, using the present invention, the national brand that can challenge World Famous Brand completely can be founded with boosting national enterprise.
Brief description of the drawings
Fig. 1 is the fundamental diagram of regular alternating current contactor；
Fig. 2 is the distribution map of four groups of contacts of regular alternating current contactor；
Fig. 3 is the functional-block diagram of the present invention；
Fig. 4 is the circuit theory diagrams of embodiment 1；
Fig. 5 is the circuit theory diagrams of embodiment 2；
Fig. 6 is the circuit theory diagrams of embodiment 3；
Fig. 7 is the circuit theory diagrams of embodiment 4；
Fig. 8 a are AC voltage oscillograms；
Fig. 8 b are the oscillogram of the voltage Vg between FET FET gate-source electrode.
Embodiment
Below in conjunction with the accompanying drawings, embodiments of the present invention are illustrated.
Fig. 3 is the functional-block diagram of the present invention, the circuit theory diagrams that Fig. 4 is embodiment 1.In Fig. 3, Fig. 4：L hands over to be conventional
The magnet exciting coil in contactor is flowed, A1, A2 are its two connectivity ports；It is normally opened auxiliary in regular alternating current contactor to switch k
Contact K is helped, B1, B2 are its two connectivity ports；Dashed rectangle 100 represents the electronic unit 100 of the present invention.
With reference to Fig. 1, Fig. 3, Fig. 4；It is a kind of to be touched using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact, including by dynamic
Point MC, normally-closed contact NC, normally opened contact NO, dynamic iron core M, static iron core G, back-moving spring F, magnet exciting coil L, normally opened auxiliary contact K
The regular alternating current contactor formed and 100 liang of parts of electronic unit, it is characterised in that：Described electronic unit 100 is by controlling
Circuit 101, on-off circuit 102, special-shaped electric bridge and holding protection circuit 103 form；Described control circuit 101 is four port nets
Network, there is 2 ends, 3 ends, N-terminal, four, public E ends port；Described on-off circuit 102 is three-port network, have 4 ends, 5 ends,
Public three ports in E ends；Described special-shaped electric bridge and holding protection circuit 103 is five―port network, has 1 end, AC1 ends, DC1
End, DC2 ends, five, public E ends port；Wherein：Described public E ends and described normally opened auxiliary contact K B2 ends and AC electricity
The P2 ends of pressure are connected；The N-terminal of described control circuit 101 is connected with described normally opened auxiliary contact K B1 ends, 2 ends
It is connected with 1 end of described special-shaped electric bridge and holding protection circuit 103,3 ends are connected with 4 ends of described on-off circuit 102
Connect；Described special-shaped electric bridge and the AC1 ends of holding protection circuit 103 are connected with the P1 ends of AC voltages, DC1 ends are encouraged with described
Magnetic coil L A1 ends are connected, DC2 ends and described magnet exciting coil L A2 ends and 5 ends of described on-off circuit 102 are homogeneous
Connection.
Described electronic unit 100 is combined by manner discussed above with regular alternating current contactor, you can forms this hair
Bright signified " using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact ".
Fig. 4 is the circuit theory diagrams of embodiment 1, in the present embodiment 1：
Control circuit 101 be by 2 ends, 3 ends, N-terminal, public E ends, the first electric capacity C1, the second electric capacity C2, first resistor R1,
The circuit that 4th diode D4, the 5th diode D5 are formed, wherein：First electric capacity C1 one end is connected with 2 ends, the other end with
N-terminal connects；5th diode D5 negative pole, the 4th diode D4 positive pole is also connected with N-terminal；4th diode D4's is negative
Pole, first resistor R1 one end, the second electric capacity C2 positive pole are connected with 3 ends；5th diode D5 positive pole, first resistor
The R1 other end, the second electric capacity C2 negative pole are connected with public E ends.
The circuit that on-off circuit 102 is made up of 4 ends, 5 ends, public E ends, the 3rd diode D3, FET FET,
Wherein：3rd diode D3 positive pole is connected with 5 ends, negative pole is connected with FET FET drain electrode；FET FET
Gate be connected with 4 ends, source electrode is connected with public E ends.
Special-shaped electric bridge and to keep protection circuit 103 be by the first diode D1, the second diode D2, the 3rd electric capacity C3, double
The circuit formed to transient voltage suppressor diode TVS, AC1 ends, DC1 ends, DC2 ends, 1 end and public E ends, wherein：First
Diode D1 positive pole, the second diode D2 negative pole are connected with AC1 ends；First diode D1 negative pole and DC1 ends phase
Connection；Second diode D2 positive pole is connected with DC2 ends；1 end is connected with DC1 ends；3rd electric capacity C3 one end and 1 end phase
Connection, the other end are connected with public E ends；Bilateral transient voltage suppression diode TVS one end is connected with AC1 ends, is another
End is connected with public E ends.
In above-mentioned special-shaped electric bridge and holding protection circuit 103：
First diode D1, the second diode D2 and magnet exciting coil L compositions are " special-shaped electric bridge ", and it has binomial function：
First, rectification --- by the direct current that AC voltage commutations are one-way flow；Second, afterflow --- after the shut-off of AC voltages, flow through excitation
Coil L electric current i is through the first diode D1, the second diode D2 afterflows.
The first electric capacity C1 in 3rd electric capacity C3 Collaborative Controls circuit 101, is provided " holding power " for magnet exciting coil L.
Bilateral transient voltage suppression diode TVS is the protection device of the present invention, and it serves the outside " transient electrical of suppression
Pressure " effect.If oneself when load such as motor start-up, shut-off by transient voltage caused by being struck by lightning or A.C. contactor
Transient voltage caused by induction electromotive force is scurried into the electronic unit 100 of the present invention, the device example among described electronic unit 100
As FET FET may breakdown damage.After setting this transient voltage suppressor TVS, when " the transition that outside is scurried into
When the magnitude of voltage of voltage " is higher than described transient voltage suppressor TVS breakdown voltage, it is equivalent to short circuit, the present invention
Electronic unit 100 just protected.
Below in conjunction with the accompanying drawings, the course of work of the present embodiment 1 is illustrated：
With reference to Fig. 4, in the present embodiment 1, the electric current i for flowing through magnet exciting coil L is referred to as exciting current i, flows through FET
FET electric current i1 is adhesive principal current i1.
In conjunction with Fig. 1, Fig. 4, Fig. 8 a, Fig. 8 b：
During t=t1, AC Voltage On states, it is along the P1-AC1 ends-end of D1-DC1 ends-1-2 ends-C1-N-terminals-
D4-C2-public E ends-P2 path, charges to the second electric capacity C2, and the voltage at the second electric capacity C2 both ends gradually rises.
When the voltage at the second electric capacity C2 both ends is the voltage Vg ＞ Vt between FET FET gate-source electrode, field
Effect pipe FET is turned on.Above-mentioned Vt is FET FET cut-in voltage.
After FET FET conductings, at P1 ends be high level, P2 ends be the low level positive half cycle of AC voltages, the main electricity of adhesive
I1 is flowed along P1-AC1 ends-D1-DC1 ends-A1 ends-magnet exciting coil L-A2 ends-DC2 ends-5 ends-D3-FET
FET-public E ends-P2 path circulation.
AC voltages are described " contacted using the power-saving alternating-current of special-shaped electric bridge and auxiliary contact by adhesive principal current i1
Device " provides " adhesive power ".
Due to adhesive principal current i1 flowing, magnet exciting coil L produces magnetic force --- abbreviation excitation, attracts dynamic iron core M towards quiet
Move in iron core G directions.
During t=t2, dynamic iron core M and static iron core G is closed, and described " applies the power-saving alternating-current of special-shaped electric bridge and auxiliary contact
Contactor " completes attracting process and enters sticking state.
In conjunction with Fig. 4, during t=t2, described enters " using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact "
After sticking state, closed with the normally opened auxiliary contact K of dynamic iron core M linkages, short circuit conducting between N-terminal and public E ends, AC voltages stop
Charging to the second electric capacity C2.
In t2~t3 time domains, the second electric capacity C2 is discharged by first resistor R1, between FET FET gate-source electrode
Voltage Vg gradually reduce, during to t=t3, Vg ＜ Vt, FET FET shut-offs.
Present invention t2 to t3 time is referred to as " adhesive-sticking transit time Δ t ".Δ t is set to bring following work
With：
1st, the attracting state of described " using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact " is consolidated；
2nd, prevent because of " normally opened auxiliary contact K is first closed ", adhesive is not caused by " dynamic iron core M with static iron core G then close "
The generation of reliable phenomenon.
After FET FET shut-offs, AC voltages pass through the electric current i2 on the first electric capacity C1 and the electricity for flowing through the 3rd electric capacity C3
Stream i3 continues as described " using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact " offer " holding power ".
T3~t4 time domains, the AC voltage negative half periods that at P1 ends be low level, P2 ends are high level：
On first electric capacity C1 electric current i2 along the P2-public E ends-B2 ends-K-B1 ends-ends-1 of N-terminal-C1-2 end-
DC1 ends-A1 ends-magnet exciting coil L-A2 ends-DC2 ends-D2-AC1 ends-P1 path circulation；
On 3rd electric capacity C3 electric current i3 along P2-public E ends 1 ends of-C3-- DC1 ends-A1 ends-magnet exciting coil L-
A2 ends-DC2 ends-D2-AC1 ends-P1 path circulation；
In this t3~t4 time domain, exciting current i is made up of electric current i2 and electric current i3 two parts, and magnet exciting coil L is encouraged by this
Magnetic force (excitation) caused by magnetoelectricity stream i, make described " the power-saving alternating-current contactor for applying special-shaped electric bridge and auxiliary contact " firm
Ground sticking.
This professional personnel should understand：The 3rd non-electric capacity that must be set of electric capacity C3 systems, connect for the signified small-sized exchanges of Fig. 1
Tentaculum, this 3rd electric capacity C3 can be omitted, and only rely on the electric current i2 on the first electric capacity C1, described " using special-shaped electric bridge and auxiliary
Help the power-saving alternating-current contactor of contact " can firmly sticking.
During t=t4, the shut-off of AC voltages, described " using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact " power-off
Reset.
During t=t5, AC voltages are once again powered up, described " using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact "
Be again introduced into " adhesive ", " sticking ", RESET work period in.
Elaboration more than, in conjunction with Fig. 4, this professional personnel should understand：
Described normally opened auxiliary contact K can be prolonged with other normal open switch such as contactor auxiliary normally open contact, contactor
When auxiliary normally open contact substitute.
Described FET FET can with for example unidirectional thyratron transistor of other switching devices, two-way thyratron transistor,
Insulated gate bipolar transistor, electron injection enhancement gate transistor, SITH or switch triode replace.
Fig. 5 is the circuit theory diagrams of embodiment 2, the control circuit 101 of the present embodiment 2, on-off circuit 102 and embodiment 1
It is identical, but special-shaped electric bridge and holding protection circuit 103 differ with embodiment 1, and it is by the first diode D1, the second diode
D2, the 3rd electric capacity C3, bilateral transient voltage suppression diode TVS, AC1 ends, DC1 ends, DC2 ends, 1 end and public E ends composition, its
In：First diode D1 positive pole, the second diode D2 negative pole are connected with AC1 ends；First diode D1 negative pole with
DC1 ends are connected；Second diode D2 positive pole DC2 ends are connected；1 end is connected with DC2 ends；3rd electric capacity C3 one end with
DC1 ends are connected, the other end is connected with public E ends；Bilateral transient voltage suppression diode TVS one end is connected with AC1 ends
Connect, the other end is connected with public E ends.
The operation principle, the course of work of the present embodiment 2 are similar to Example 1.
Fig. 6 is the circuit theory diagrams of embodiment 3, the control circuit 101 of the present embodiment 3, on-off circuit 102 and embodiment 1
It is identical, but special-shaped electric bridge and holding protection circuit 103 differ with embodiment 1, and it is by the first diode D1, the second diode
D2, the 3rd electric capacity C3, bilateral transient voltage suppression diode TVS, AC1 ends, DC1 ends, DC2 ends, 1 end and public E ends composition, its
In：First diode D1 positive pole, the second diode D2 negative pole are connected with AC1 ends；First diode D1 negative pole with
DC1 ends are connected；Second diode D2 positive pole DC2 ends are connected；1 end is connected with DC2 ends；3rd electric capacity C3 one end with
1 end is connected, the other end is connected with public E ends；Bilateral transient voltage suppression diode TVS one end is connected with AC1 ends,
The other end is connected with public E ends.
The operation principle, the course of work of the present embodiment 3 are similar to Example 1.
Fig. 7 is the circuit theory diagrams of embodiment 4, the control circuit 101 of the present embodiment 4, on-off circuit 102 and embodiment 1
It is identical, but special-shaped electric bridge and holding protection circuit 103 differ with embodiment 1, and it is by the first diode D1, the second diode
D2, the 3rd electric capacity C3, bilateral transient voltage suppression diode TVS, AC1 ends, DC1 ends, DC2 ends, 1 end and public E ends composition, its
In：First diode D1 positive pole, the second diode D2 negative pole are connected with AC1 ends；First diode D1 negative pole with
DC1 ends are connected；Second diode D2 positive pole DC2 ends are connected；1 end is connected with DC1 ends；3rd electric capacity C3 one end with
DC2 ends are connected, the other end is connected with public E ends；Bilateral transient voltage suppression diode TVS one end is connected with AC1 ends
Connect, the other end is connected with public E ends.
The operation principle, the course of work of the present embodiment 4 are similar to Example 1.
Technical scheme is above described, all do not depart from the replacement of the essence of technical scheme, all
Should be in the range of the claim of the present invention.
Claims (9)
1. a kind of using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact, including by movable contact, normally-closed contact, normally opened touch
The regular alternating current contactor and electronics list that point, dynamic iron core, static iron core, back-moving spring, magnet exciting coil, normally opened auxiliary contact are formed
The part of member two, it is characterised in that：Described electronic unit is by control circuit, on-off circuit, special-shaped electric bridge and keeps protection circuit
Composition；Described control circuit is four port networks, has four 2 ends, 3 ends, N-terminal, common port ports；Described on-off circuit
For three-port network, there are three 4 ends, 5 ends, common port ports；Described special-shaped electric bridge and holding protection circuit is five ports
Network, there are five 1 end, AC1 ends, DC1 ends, DC2 ends, common port ports；Wherein：Described common port with it is described normally opened auxiliary
The B2 ends of contact and the P2 ends of AC voltages is helped to be connected；The N-terminal of described control circuit and described normally opened auxiliary contact
B1 ends are connected, 2 ends and described special-shaped electric bridge and keep 1 end of protection circuit to be connected, 3 ends and described on-off circuit
4 ends are connected；Described special-shaped electric bridge and keep the AC1 ends of protection circuit to be connected with the P1 ends of AC voltages, DC1 ends with it is described
Magnet exciting coil A1 ends be connected, DC2 ends are connected with the A2 ends of described magnet exciting coil and 5 ends of described on-off circuit
Connect.
2. as claimed in claim 1 using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact, it is characterised in that：It is described
Control circuit by 2 ends, 3 ends, N-terminal, common port, the first electric capacity, the second electric capacity, first resistor, the 4th diode, the five or two pole
The circuit that pipe is formed, wherein：One end of first electric capacity is connected with 2 ends, the other end and N-terminal connect；The negative pole of 5th diode,
The positive pole of 4th diode is also connected with N-terminal；The negative pole of 4th diode, one end of first resistor, the second electric capacity are just
Extremely it is connected with 3 ends；The positive pole of 5th diode, the other end of first resistor, the second electric capacity negative pole with common port phase
Connection.
3. as claimed in claim 2 using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact, it is characterised in that：It is described
The circuit that is made up of 4 ends, 5 ends, common port, the 3rd diode, FET of on-off circuit, wherein：3rd diode
Positive pole is connected with 5 ends, negative pole is connected with the drain electrode of FET；The gate of FET is connected with 4 ends, source electrode with it is public
End is connected altogether.
It is 4. according to claim 2 using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact, it is characterised in that：Institute
The special-shaped electric bridge and holding protection circuit stated suppress two by the first diode, the second diode, the 3rd electric capacity, bidirectional transient voltage
Pole pipe, AC1 ends, DC1 ends, DC2 ends, 1 end and common port composition, wherein：The negative pole of the positive pole of first diode, the second diode
It is connected with AC1 ends；The negative pole of first diode is connected with DC1 ends；The positive pole of second diode is connected with DC2 ends；1
End is connected with DC1 ends；One end of 3rd electric capacity is connected with 1 end, the other end is connected with common port；Bidirectional transient voltage presses down
One end of diode processed is connected with AC1 ends, the other end is connected with common port.
It is 5. according to claim 2 using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact, it is characterised in that：Institute
The special-shaped electric bridge and holding protection circuit stated suppress two by the first diode, the second diode, the 3rd electric capacity, bidirectional transient voltage
Pole pipe, AC1 ends, DC1 ends, DC2 ends, 1 end and common port composition, wherein：The negative pole of the positive pole of first diode, the second diode
It is connected with AC1 ends；The negative pole of first diode is connected with DC1 ends；The positive pole of second diode is connected with DC2 ends；1
End is connected with DC2 ends；One end of 3rd electric capacity is connected with DC1 ends, the other end is connected with common port；Bidirectional transient voltage
One end of suppression diode is connected with AC1 ends, the other end is connected with common port.
It is 6. according to claim 3 using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact, it is characterised in that：Institute
The special-shaped electric bridge and holding protection circuit stated suppress two by the first diode, the second diode, the 3rd electric capacity, bidirectional transient voltage
Pole pipe, AC1 ends, DC1 ends, DC2 ends, 1 end and common port composition, wherein：The negative pole of the positive pole of first diode, the second diode
It is connected with AC1 ends；The negative pole of first diode is connected with DC1 ends；The positive pole of second diode is connected with DC2 ends；1
End is connected with DC2 ends；One end of 3rd electric capacity is connected with 1 end, the other end is connected with common port；Bidirectional transient voltage presses down
One end of diode processed is connected with AC1 ends, the other end is connected with common port.
It is 7. according to claim 3 using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact, it is characterised in that：Institute
The special-shaped electric bridge and holding protection circuit stated suppress two by the first diode, the second diode, the 3rd electric capacity, bidirectional transient voltage
Pole pipe, AC1 ends, DC1 ends, DC2 ends, 1 end and common port composition, wherein：The negative pole of the positive pole of first diode, the second diode
It is connected with AC1 ends；The negative pole of first diode is connected with DC1 ends；The positive pole of second diode is connected with DC2 ends；1
End is connected with DC1 ends；One end of 3rd electric capacity is connected with DC2 ends, the other end is connected with common port；Bidirectional transient voltage
One end of suppression diode is connected with AC1 ends, the other end is connected with common port.
It is 8. according to claim 3 using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact, it is characterised in that：Institute
Normally opened auxiliary contact contactor auxiliary normally open contact, the contactor delay auxiliary normally open contact stated substitute.
It is 9. according to claim 3 using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact, it is characterised in that：Institute
The FET stated unidirectional thyratron transistor, two-way thyratron transistor, insulated gate bipolar transistor, electron injection enhancement grid
Transistor, SITH or switch triode replace.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610498559.0A CN106057577B (en) | 2016-06-25 | 2016-06-25 | Using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact |
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| CN201610498559.0A CN106057577B (en) | 2016-06-25 | 2016-06-25 | Using special-shaped electric bridge and the power-saving alternating-current contactor of auxiliary contact |
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