CN106531560A - Parallel type energy-saving type duplex winding high-voltage direct current contactor - Google Patents
Parallel type energy-saving type duplex winding high-voltage direct current contactor Download PDFInfo
- Publication number
- CN106531560A CN106531560A CN201611246710.8A CN201611246710A CN106531560A CN 106531560 A CN106531560 A CN 106531560A CN 201611246710 A CN201611246710 A CN 201611246710A CN 106531560 A CN106531560 A CN 106531560A
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- terminals
- auxiliary contact
- coil
- winding
- terminal
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
- H01H50/443—Connections to coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/541—Auxiliary contact devices
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The present invention discloses a parallel type energy-saving type duplex winding high-voltage direct current contactor. A transmission core rod is provided with an auxiliary push rod, an arc extinguishing chamber is provided with upper and lower auxiliary contacts, and the upper and lower auxiliary contacts form normally closed auxiliary contacts; the upper auxiliary contact is fixedly connected with the auxiliary push rod, and the auxiliary push rod can drive the upward movement of the lower auxiliary contact to separate from the upper auxiliary contact when performing upward movement with the transmission core rod; a coil winding includes a starting winding and a maintaining winding, four terminals are led out from the coil winding, the two ends of the coil of the starting winding is respectively electrically connected with a second terminal and a fourth terminal, the two ends of the coil of the maintaining winding is respectively electrically connected with the second terminal and the third terminal, the first terminal is communicated with the third terminal, the third terminal and the fourth terminal are respectively electrically with the upper and lower auxiliary contacts, the first terminal and the third terminal are communicated, the first terminal and the second terminal are used and the third terminal and the second terminal are used for form two external supply terminals. The two windings and the auxiliary contact conversion mechanism of the contactor coil are simple in structure, high in production efficiency and low in cost.
Description
Technical field
A kind of a kind of the present invention relates to D.C. contactor, more particularly to parallel energy-saving double winding HVDC contact
Device.
Background technology
D.C. contactor needs high current in start-up course coil, overcomes spring anti-to obtain larger electromagnetic attraction
Power；After working stability, coil only needs the electric current that maintains of very little meet the retentivity requirement of electromagnetic system.According to direct current
The big characteristic for keeping electric current little of starting current of catalyst, generally carries out energy-efficient treatment to D.C. contactor coil control section.
The coil Energy Saving Control of high-voltage DC contactor has two ways in the market：One kind is that PWM (adjust by pulse width
System) circuit board control；Another kind is that coil has two windings (start winding and keep winding), by circuit board to starting winding
Conversion and control is carried out with holding winding.Both Energy Saving Control modes are required to circuit board and associated electronic components.Due to circuit
Plate needs to meet the requirement such as EMC, has the risk of failure in actual use.
The content of the invention
In order to overcome drawbacks described above, the invention provides a kind of parallel energy-saving double winding high-voltage DC contactor, leads to
Cross auxiliary contact to change double winding, simple structure, production efficiency is high, low cost.
The technical scheme that adopted to solve its technical problem of the present invention is：A kind of parallel energy-saving double winding high pressure
D.C. contactor, including contactor case body and the insulation for being sealingly fastened in the contactor case body upper port of upper end open
Lid, is provided with arc-extinguish chamber in the sealing space of the contactor case body and the insulating lid, be provided with the arc-extinguish chamber main stationary contact,
For forming the moving contacting plate of two active contacts, for driving the moving contacting plate to move up and down to open with the main stationary contact
The transmission core bar for closing, the moving contacting plate are vertically connected on the upper end of the transmission core bar, the lower end of the transmission core bar
Portion periphery is provided with for driving the iron core and coil windings that the transmission core bar moved upwards, and middle part periphery is provided with for for the transmission
Core bar provides the reaction spring of restoring force, and the upper surface of the transmission core bar is provided with an auxiliary push-rod, on the arc-extinguish chamber also
Auxiliary contact and lower auxiliary contact are respectively equipped with, the lower auxiliary contact and upper auxiliary contact form closed type auxiliary contact；Institute
State auxiliary contact to be fixedly connected with the auxiliary push-rod, the auxiliary push-rod can be driven when moved with the transmission core bar upwards
Move the lower auxiliary contact to move upwards to disconnect with the upper auxiliary contact；The coil windings include start winding and keep around
Group, draws four terminals in the coil windings：First terminals, the second terminals, the 3rd terminals and the 4th terminals, institute
The coil for stating startup winding is electrically connected to both ends of to the second terminals and the 4th terminals, the coil two ends of the holding winding
The second terminals and the 3rd terminals are respectively electrically connected to, the 3rd terminals and the 4th terminals are again auxiliary with described respectively
Contact and the electrical connection of lower auxiliary contact, first terminals is helped to be connected the external power source to form a coil with the 3rd terminals
Terminals, second terminals form the external power source terminals of another coil.
As a further improvement on the present invention, the lower end fixed cover of the transmission core bar is located in the iron core, the iron core
Periphery is the coil windings being fixed in the contactor case body, and the coil windings include starting winding and keep winding, often
One winding is made up of magazine and the coil being wound on the magazine.
As a further improvement on the present invention, the magazine is provided with pole piece, the periphery of the pole piece with it is described
Contactor case body contact, it is described transmission core bar in the middle part of be arranged in the pole piece, the pole piece be placed in the contact
Arc-extinguish chamber in device shell body in upper end forms arc extinguishing space, and the main stationary contact and moving contacting plate are placed in the arc extinguishing space
It is interior.
As a further improvement on the present invention, four metal ferrules are equipped with the insulating lid, and wherein two metals are inserted
Pin stretches out the lateral surface of the insulating lid respectively and forms a pair of outer terminals of coil windings, two metal ferrules it is interior
End connects the second terminals and the 3rd terminals respectively；The outer end of another two metal ferrules is respectively connecting to described upper and lower auxiliary
Contact, the inner is helped to be respectively connecting to first terminals and the 4th terminals.
As a further improvement on the present invention, the upper auxiliary contact and lower auxiliary contact are elastic spring, it is described on
The head of auxiliary contact has the bending of a first downward acute angle, and afterbody is in arc-shaped；The head of the lower auxiliary contact has
The bending of one the second acute angle upwards, afterbody are in arc-shaped.
As a further improvement on the present invention, first acute angle is 4 °～6 °, and second acute angle is 2 °～4 °.
As a further improvement on the present invention, catch is provided with the middle part of the transmission core bar, the reaction spring is sheathed on
The transmission core bar is located at outside the part between the catch and the iron core, and the transmission core bar is located at the catch and moving contacting plate
Between part outside be arranged with touch spring.
The invention has the beneficial effects as follows：
Coil Energy Saving Control according to the present invention be double winding, between two windings by auxiliary contact winding is worked into
Row conversion.I.e.：Start winding R1 and R2 parallel operations when product starts, start after the completion of Contactor Starting and disconnect around R1, keep
Winding R2 works independently.Auxiliary contact are link gear with catalyst push rod, and auxiliary contact are at the top of contacts of contactor.This
It is bright by loop construction particular design and with catalyst at the top of the ingenious connection of normally closed auxiliary contact, reach two windings of catalyst
The function of conversion.The present invention relates to two windings of contactor coil and auxiliary contact shifter simple structure, production effect
Rate is high, low cost.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is double-coil contactor circuit diagram of the present invention；
Fig. 3 is coil block of the present invention and metal ferrule connection diagram；
Fig. 4 is metal ferrule of the present invention and auxiliary contact connection diagram；
Fig. 5 is upper auxiliary contact structural representation of the present invention；
Fig. 6 is lower auxiliary contact structural representation of the present invention；
Fig. 7 is the structural representation that auxiliary contact of the present invention are arranged in arc-extinguish chamber body；
Cross-sectional views of the Fig. 8 for Fig. 7.
With reference to accompanying drawing, make the following instructions：
1 first terminals, 2 second terminals
The 4th terminals of 3 the 3rd terminals 4
K1 closed type auxiliary contact R1 starts winding
R2 keeps 101 contactor case body of winding
102 coil windings, 103 moving contacting plate
104 main stationary contact, 105 insulating lid
107 times auxiliary contact of auxiliary contact on 106
108 auxiliary push-rod, 109 arc-extinguish chamber
110 touch spring, 111 reaction spring
112 pole piece 113 is driven core bar
114 iron core, 201 metal ferrule
A1, A2 main contacts
Q1 the first acute angle the second acute angles of Q2
Specific embodiment
Below in conjunction with accompanying drawing, a preferred embodiment to the present invention elaborates.But protection scope of the present invention is not
Be limited to following embodiments, i.e., the simple equivalence changes made with scope of the present invention patent and description in every case with repair
Decorations, all still belong within patent covering scope of the present invention.
Refering to Fig. 1-8, it is the parallel energy-saving double winding high-voltage DC contactor of one kind of the present invention, including upper end
The contactor case body 101 of opening and the insulating lid 105 for being sealingly fastened in the contactor case body upper port, outside the catalyst
Arc-extinguish chamber 109 is provided with the sealing space of housing and the insulating lid, is provided with main stationary contact 104, for being formed in the arc-extinguish chamber
The moving contacting plate 103 of two active contacts, for drive the moving contacting plate to move up and down with the main stationary contact opening and closing
Transmission core bar 113, the moving contacting plate are vertically connected on the upper end of the transmission core bar, the bottom of the transmission core bar
Periphery is provided with for driving the iron core 114 and coil windings 102 that the transmission core bar moved upwards.
Catch is provided with the middle part of the transmission core bar, the transmission core bar is located at outside the part between the catch and the iron core
The reaction spring 111 provided for the transmission core bar in replying is provided, the transmission core bar be located at the catch and moving contacting plate it
Between part outside be arranged with touch spring 110.
In the iron core, its outer diameter is to be fixed on outside the catalyst to the lower end fixed cover of the transmission core bar
Coil windings in housing, the coil windings include starting winding R1 and keep winding R2, and each winding is by magazine and twines
The coil composition being around on the magazine.The magazine is provided with pole piece 112, and the periphery of the pole piece is connect with described
Tentaculum shell body contact, it is described transmission core bar in the middle part of be arranged in the pole piece, the pole piece be placed in the catalyst
Arc-extinguish chamber in shell body in upper end forms arc extinguishing space, and the main stationary contact and moving contacting plate are placed in the arc extinguishing space.
The upper surface of the transmission core bar is provided with an auxiliary push-rod 108, further respectively has auxiliary on the arc-extinguish chamber
Contact 106 and lower auxiliary contact 107, the lower auxiliary contact and upper auxiliary contact form closed type auxiliary contact K1；It is described auxiliary
Contact is helped to be fixedly connected with the auxiliary push-rod, the auxiliary push-rod can be driven under this when moved with the transmission core bar upwards
Auxiliary contact move to disconnect with the upper auxiliary contact upwards；The coil windings include starting winding R1 and keep winding
R2, draws four terminals in the coil windings：First terminals 1, the second terminals 2, the 3rd terminals 3 and the 4th terminals
4, the coil for starting winding is electrically connected to both ends of to the second terminals and the 4th terminals, the coil of the holding winding
Be electrically connected to both ends of to the second terminals and the 3rd terminals, the 3rd terminals and the 4th terminals again respectively with it is described
Upper auxiliary contact and the electrical connection of lower auxiliary contact, first terminals are connected the outside to form a coil with the 3rd terminals
Supply terminals, second terminals form the external power source terminals of another coil.
Four metal ferrules 201 are equipped with the insulating lid, and wherein two metal ferrules stretch out the insulating lid respectively
Lateral surface and form a pair of outer terminals of coil windings, the inner of two metal ferrules connects the second terminals respectively
With the 3rd terminals；The outer end of another two metal ferrules is respectively connecting to the upper and lower auxiliary contact, and the inner is respectively connecting to
First terminals and the 4th terminals.
Refering to Fig. 5-6, the upper auxiliary contact and lower auxiliary contact are elastic spring, the head of the upper auxiliary contact
There is the bending of a first downward acute angle Q1, afterbody is in arc-shaped；The head of the lower auxiliary contact has upwards
The bending of two acute angle Q2, afterbody are in arc-shaped.First acute angle is 4 °～6 °, and second acute angle is 2 °～4 °.
Refering to Fig. 1, in original state, upper auxiliary contact are closure state with lower auxiliary contact to the D.C. contactor.When
After product work, auxiliary push-rod promotes upper auxiliary contact 106 to move upwards, and so as to leave lower auxiliary contact 107, auxiliary contact break
Open.
Refering to Fig. 2, during Contactor Starting, K1 closures, R1 are in parallel with R2, and coil resistance is：(R1*R2)/(R1+R2) ＜
R1.After product work, K1 disconnects, and R1 power-off, coil resistance are R2.
High voltage connector coil of the present invention has two windings, is to start winding R1 and keep winding R2 respectively；Wherein R1 lines
Circle resistance is little, and starting current is big, and major function provides electromagnetic attraction during startup for DC contactor's electromagnetic system；Keep winding
R2 resistance is big, keeps electric current little, and major function is holding Electromagnetic System of Contactor retentivity.The mechanism that coil windings are changed is into one
To normally closed auxiliary contact K1.Closed type auxiliary contact K1 is at the top of arc-extinguish chamber.Original state is that closed type auxiliary contact K1 leads
It is logical.When product coil rated voltage, electric current point two-way：All the way electric current from the first terminals 1 of coil through the 3rd of coil
Terminals 3 and closed type auxiliary contact K1, the 4th terminals 4 of flowing through coil, then through starting winding R1 to the second of coil
Terminals 2 form wire loop；Another road electric current is connect to the second of coil from first terminals 1 of coil through holding winding 2
Line end 2 forms wire loop.Electric current makes coil generating electromagnetic suction by starting winding R1 and holding winding R2 simultaneously.Now line
Circle starts winding R1 and R2 parallel operations, and now coil resistance is：(R1*R2)/(R1+R2) ＜ R1.During startup, electric current is larger, electricity
Magnetic attraction is larger；Coil generating electromagnetic suction overcomes reaction spring counter-force to promote iron core to move upwards.Transmission core bar with iron core to
Upper motion, promotes auxiliary push-rod to move upwards.Auxiliary push-rod also promotes the upper auxiliary contact of normally closed auxiliary contact to move upwards.When
After iron core is closed with pole piece, auxiliary push-rod promotes upper auxiliary contact to disconnect lower auxiliary contact, i.e.,：Normally closed auxiliary contact K1 breaks
Open；Now the startup winding R1 of coil disconnects, and keeps winding R2 to work independently, and coil resistance is R2.Now coil current reduces,
Play hold-in winding electric current.Because coil keeps electric current less than starting current, the purpose of energy-conservation is reached.
As can be seen here, coil Energy Saving Control according to the present invention is double winding, passes through auxiliary contact pair between two windings
Winding work is changed.I.e.：Start winding R1 and R2 parallel operations when product starts, start around R1 after the completion of Contactor Starting
Disconnect, keep winding R2 to work independently.The shifter of the present invention is a pair of auxiliary contact K1.Auxiliary contact K1 is pushed away with catalyst
Bar is link gear, and auxiliary contact are at the top of contacts of contactor.The present invention passes through loop construction particular design and catalyst
The ingenious connection of normally closed auxiliary contact at top, reaches the function of two winding switchs of catalyst.The catalyst that this patent is related to
Two windings of coil and auxiliary contact shifter simple structure, production efficiency are high, low cost.
Claims (7)
1. a kind of parallel energy-saving double winding high-voltage DC contactor, contactor case body (101) including upper end open and
It is sealingly fastened in the close of the insulating lid (105) of the contactor case body upper port, the contactor case body and the insulating lid
Envelope is provided with arc-extinguish chamber (109) in space, is provided with main stationary contact (104), moving for two active contacts of formation in the arc-extinguish chamber
Contact chip (103), the transmission core bar (113) for driving the moving contacting plate to move up and down to be opened and closed with the main stationary contact,
The moving contacting plate be vertically connected at it is described transmission core bar upper end on, it is described transmission core bar bottom periphery be provided with for
Drive iron core (114) and coil windings (102) that the transmission core bar moved upwards, middle part periphery is provided with for for the transmission core bar
The reaction spring (111) of restoring force is provided, it is characterised in that：The upper surface of the transmission core bar is provided with an auxiliary push-rod
(108) auxiliary contact (106) and lower auxiliary contact (107), are further respectively had on the arc-extinguish chamber, the lower auxiliary contact and upper
Auxiliary contact form closed type auxiliary contact (K1)；The upper auxiliary contact are fixedly connected with the auxiliary push-rod, the auxiliary
Push rod can drive the lower auxiliary contact to move upwards when moved with the transmission core bar upwards with disconnected with the upper auxiliary contact
Open；
The coil windings include starting winding (R1) and holding winding (R2), draw four terminals in the coil windings：The
One terminals (1), the second terminals (2), the 3rd terminals (3) and the 4th terminals (4), the coil two ends for starting winding
The second terminals and the 4th terminals are respectively electrically connected to, the coil of the holding winding is electrically connected to both ends of to the second wiring
End and the 3rd terminals, the 3rd terminals and the 4th terminals are again electric with the upper auxiliary contact and lower auxiliary contact respectively
Connection, first terminals are connected the external power source terminals to form a coil, second wiring with the 3rd terminals
End forms the external power source terminals of another coil.
2. parallel energy-saving double winding high-voltage DC contactor according to claim 1, it is characterised in that：The transmission
The lower end fixed cover of core bar in the iron core, its outer diameter be the coil that is fixed in the contactor case body around
Group, the coil windings include starting winding (R1) and keep winding (R2), and each winding is by magazine and is wound in the coil
Coil composition on framework.
3. parallel energy-saving double winding high-voltage DC contactor according to claim 2, it is characterised in that：The coil
Framework is provided with pole piece (112), and the periphery of the pole piece is contacted with the contactor case body, the middle part of the transmission core bar
It is arranged in the pole piece, it is empty that the pole piece forms arc extinguishing with the arc-extinguish chamber being placed in the contactor case body in upper end
Between, the main stationary contact and moving contacting plate are placed in the arc extinguishing space.
4. parallel energy-saving double winding high-voltage DC contactor according to claim 1, it is characterised in that：The insulation
Cover and be equipped with four metal ferrules (201), wherein two metal ferrules stretch out the lateral surface of the insulating lid respectively and formed
A pair of outer terminals of coil windings, the inner of two metal ferrules connect the second terminals and the 3rd terminals respectively；
The outer end of another two metal ferrules is respectively connecting to the upper and lower auxiliary contact, and the inner is respectively connecting to first wiring
End and the 4th terminals.
5. parallel energy-saving double winding high-voltage DC contactor according to claim 1, it is characterised in that：It is described auxiliary
Contact and lower auxiliary contact are helped to be elastic spring, the head of the upper auxiliary contact has downward first acute angle (Q1)
Bending, afterbody are in arc-shaped；The head of the lower auxiliary contact has the bending of second acute angle (Q2) upwards, and afterbody is in circle
Arcuation.
6. parallel energy-saving double winding high-voltage DC contactor according to claim 5, it is characterised in that：Described first
Acute angle is 4 °～6 °, and second acute angle is 2 °～4 °.
7. parallel energy-saving double winding high-voltage DC contactor according to claim 1, it is characterised in that：The transmission
Catch is provided with the middle part of core bar, and the reaction spring is sheathed on the part that the transmission core bar is located between the catch and the iron core
Outward, the transmission core bar is located at outside the part between the catch and moving contacting plate and is arranged with touch spring (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611246710.8A CN106531560A (en) | 2016-12-29 | 2016-12-29 | Parallel type energy-saving type duplex winding high-voltage direct current contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611246710.8A CN106531560A (en) | 2016-12-29 | 2016-12-29 | Parallel type energy-saving type duplex winding high-voltage direct current contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106531560A true CN106531560A (en) | 2017-03-22 |
Family
ID=58339176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611246710.8A Pending CN106531560A (en) | 2016-12-29 | 2016-12-29 | Parallel type energy-saving type duplex winding high-voltage direct current contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106531560A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112289642A (en) * | 2020-10-24 | 2021-01-29 | 深圳市金泉科技有限公司 | Low-voltage direct current contactor and production process thereof |
| CN113745060A (en) * | 2021-09-01 | 2021-12-03 | 安徽中骄智能科技有限公司 | New forms of energy high voltage direct current relay based on it is insulating and arc extinguishing |
| WO2024092956A1 (en) * | 2022-11-04 | 2024-05-10 | 昆山国力电子科技股份有限公司 | Small-size high-voltage direct current contactor |
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| KR100854381B1 (en) * | 2007-03-05 | 2008-09-02 | 엘에스산전 주식회사 | A sealed dc switching device |
| CN203351513U (en) * | 2013-03-20 | 2013-12-18 | 戴丁志 | Full-enclosed type arc extinction contactor |
| CN203367164U (en) * | 2013-05-30 | 2013-12-25 | 贵州天义电器有限责任公司 | Sealed magnetic blowout high-voltage direct-current contactor |
| CN105679610A (en) * | 2016-04-12 | 2016-06-15 | 昆山国力源通新能源科技有限公司 | High-voltage sealed DC contactor with auxiliary contacts |
| CN106252157A (en) * | 2016-08-31 | 2016-12-21 | 宁波永的电子科技有限公司 | The control circuit of a kind of high-voltage relay, system and method |
| CN206301746U (en) * | 2016-12-29 | 2017-07-04 | 昆山国力源通新能源科技有限公司 | Parallel energy-saving double winding high-voltage DC contactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100854381B1 (en) * | 2007-03-05 | 2008-09-02 | 엘에스산전 주식회사 | A sealed dc switching device |
| CN203351513U (en) * | 2013-03-20 | 2013-12-18 | 戴丁志 | Full-enclosed type arc extinction contactor |
| CN203367164U (en) * | 2013-05-30 | 2013-12-25 | 贵州天义电器有限责任公司 | Sealed magnetic blowout high-voltage direct-current contactor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112289642A (en) * | 2020-10-24 | 2021-01-29 | 深圳市金泉科技有限公司 | Low-voltage direct current contactor and production process thereof |
| CN112289642B (en) * | 2020-10-24 | 2023-09-05 | 深圳市金泉科技有限公司 | Low-voltage direct-current contactor and production process thereof |
| CN113745060A (en) * | 2021-09-01 | 2021-12-03 | 安徽中骄智能科技有限公司 | New forms of energy high voltage direct current relay based on it is insulating and arc extinguishing |
| CN113745060B (en) * | 2021-09-01 | 2023-09-01 | 深圳市友利通新能源科技有限公司 | New energy high-voltage direct-current relay based on insulation and arc extinction |
| WO2024092956A1 (en) * | 2022-11-04 | 2024-05-10 | 昆山国力电子科技股份有限公司 | Small-size high-voltage direct current contactor |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170322 |
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| RJ01 | Rejection of invention patent application after publication |