CN108493022A - Nonpolarity single-break D.C. contactor - Google Patents
Nonpolarity single-break D.C. contactor Download PDFInfo
- Publication number
- CN108493022A CN108493022A CN201810159276.2A CN201810159276A CN108493022A CN 108493022 A CN108493022 A CN 108493022A CN 201810159276 A CN201810159276 A CN 201810159276A CN 108493022 A CN108493022 A CN 108493022A
- Authority
- CN
- China
- Prior art keywords
- contact
- permanent magnet
- power
- static contact
- outlet end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
- H01H50/041—Details concerning assembly of relays
- H01H50/045—Details particular to contactors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
- H01H50/38—Part of main magnetic circuit shaped to suppress arcing between the contacts of the relay
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a kind of nonpolarity single-break D.C. contactors.It is equipped with power inleting terminal (4) on contact chamber (8) top, power outlet end (5), the top of power inleting terminal (4) and power outlet end (5) is located at the contact chamber (8) of sealing outside, the lower part of power inleting terminal (4) and power outlet end (5) is located in the contact chamber (8) of sealing, the lower part at power outlet end (5) is connected with static contact (1), moving contact (2) there are one being set below static contact (1), moving contact (2) is vertically oppositely arranged with static contact (1), moving contact (2) by be flexible coupling (3) be connected with power inleting terminal (4)；First permanent magnet (6), the second permanent magnet (7) are individually positioned in the both sides of static contact (1), moving contact (2).The single-break D.C. contactor is by improving internal structure so that when current polarity is opposite, short circuit will not all occur for electric arc, and realization contactor is connected nonpolarityly and disjunction.
Description
Technical field
The present invention relates to D.C. contactor fields, more particularly to a kind of nonpolarity single-break D.C. contactor.
Background technology
Widely used closed type D.C. contactor is all double breaking points bridge architecture currently on the market, including two fixed
Static contact, a moving contacting plate, a static contact connect the anode of power supply, and a static contact connects the cathode of power supply.Two static contacts
It is arranged in parallel, moving contacting plate is parallel with the line of two static contacts.Electric current is flowed into from positive static contact, by moving contacting plate, then
It is flowed out from negative static contact.Two pieces of permanent magnets are generated perpendicular to the magnetic field of current direction, since electric current is from positive static contact stream
Enter, the outflow of negative static contact elongates two electric arcs to both sides respectively so generating the magnetic field force of opposite direction so that electric arc point
It is disconnected.If above-mentioned current direction is reversed, positive static contact connects power cathode, and negative static contact connects positive pole, can make two
Electric arc is deflected to centre simultaneously, may result in short circuit, cannot effective disjunction.As the fast development of new-energy automobile is to electrodeless
Property D.C. contactor more stringent requirements are proposed, that is, the ability for requiring D.C. contactor to have two-way opened power-off arc is and existing
Unipolarity D.C. contactor cannot be satisfied actual demand.
Invention content
Technical problem：The present invention is to provide a kind of non-polar single-break D.C. contactor, is connect with solving unipolarity direct current
Tentaculum cannot achieve two-way the problem of cut-offfing.
Technical solution：To reach this purpose, the present invention uses following technical scheme：
The present invention a kind of nonpolarity single-break D.C. contactor concrete structure be：Stationary contact is equipped in the contact chamber of sealing
Head, moving contact, be flexible coupling, power inleting terminal, power outlet end, the first permanent magnet, the second permanent magnet；It is equipped on contact chamber top
The top at power inleting terminal, power outlet end, power inleting terminal and power outlet end is located at outside the contact chamber of sealing, power supply
The lower part at end of incoming cables and power outlet end is located in the contact chamber of sealing, and the lower part at power outlet end is connected with static contact,
Set below static contact there are one moving contact, moving contact is vertically oppositely arranged with static contact, moving contact by being flexible coupling and
Power inleting terminal is connected；First permanent magnet, the second permanent magnet are individually positioned in the both sides of static contact, moving contact.
Wherein,
Two pieces of first permanent magnet, the second permanent magnet permanent magnets are in the one side polarity phase close to moving contact and static contact
Instead.
The direction in the magnetic field that two pieces of permanent magnets generate is vertical with static contact line direction with moving contact, and with move
The current direction flowed through between contact and static contact is vertical.
The moving contact and static contact and it is flexible coupling positioned in the contact chamber of sealing, the first permanent magnet, second are forever
Magnet is placed in parallel outside the contact chamber of sealing.
It is filled with the inert gas of high pressure in the contact chamber of the sealing or is evacuated, cooling electric arc, convenient for disjunction electricity
Arc.
The present invention it is in sealing contact it is indoor include a static contact, a moving contact, moving contact is by being flexible coupling and power supply
End of incoming cables is connected, and static contact is connected with power outlet end.Electric current is flowed into from electric current end of incoming cables, is flowed successively through and is flexible coupling, moving contact,
Static contact is flowed out from current outlet end；Electric current can also be reversed, and electric current is flowed into from power outlet end, flows successively through static contact, moves
Contact is flexible coupling, and is flowed out from power inleting terminal.The magnetic field that two pieces of permanent magnets generate is vertical with dynamic/static contact line, with electric current side
To also vertically, the electromagnetic force of generation is also perpendicularly to current direction, and electromagnetic force elongates electric arc, fast arc extinction.It is filled in arc-chutes
The inert gas hydrogen of high pressure, cooling electric arc, achievees the purpose that fast arc extinction.
Advantageous effect：Electric current can be flowed into from electric current end of incoming cables, be flowed out from current outlet end；Electric current can also be reversed, from
Power outlet end flows into, and is flowed out from power inleting terminal.The single-break D.C. contactor is by improving internal structure so that electric current pole
Property it is opposite when, short circuit will not all occur for electric arc, realize that contactor is connected and disjunction nonpolarityly.
Description of the drawings
Fig. 1 is that the front view of the nonpolarity single-break D.C. contactor arc quenching system section of the present invention (is directed toward paper, electricity in magnetic field
Stream is from bottom to top)；
Fig. 2 is that the front view of the nonpolarity single-break D.C. contactor arc quenching system section of the present invention (is directed toward paper, electricity in magnetic field
Stream is from the top down)；
Fig. 3 is the vertical view of the nonpolarity single-break D.C. contactor arc quenching system of the present invention；
Fig. 4 is that the front view of the nonpolarity single-break D.C. contactor arc quenching system section of the present invention is (electric outside the direction paper of magnetic field
Stream is from bottom to top)；
Fig. 5 is that the front view of the nonpolarity single-break D.C. contactor arc quenching system section of the present invention is (electric outside the direction paper of magnetic field
Stream is from the top down)；
Fig. 6 is the vertical view of the nonpolarity single-break D.C. contactor arc quenching system of the present invention.
Have in above figure：Static contact 1, moving contact 2,3 (can put on heat-shrink tube) that are flexible coupling, power inleting terminal 4, power supply go out
Line end 5, the first permanent magnet 6, the second permanent magnet 7, the contactor 8 of sealing, current direction 9, magnetic direction 10, electromagnetism force direction
11。
Specific implementation mode
The present invention is further introduced with attached drawing With reference to embodiment.
As shown in Figure 1, a kind of nonpolarity single-break D.C. contactor of the present invention, is equipped with quiet in the contact chamber 8 of sealing
Contact 1, moving contact 2, the 3, power inleting terminal 4 that is flexible coupling, power outlet end 5, the first permanent magnet 6, the second permanent magnet 7；It is contacting
8 top of room is equipped with power inleting terminal 4, power outlet end 5, and the top at power inleting terminal 4 and power outlet end 5 is located at sealing
Contact chamber 8 outside, the lower part at power inleting terminal 4 and power outlet end 5 is located in the contact chamber 8 of sealing, power outlet end 5
Lower part be connected with static contact 1, set there are one moving contact 2 in the lower section of static contact 1, moving contact 2 is vertically opposite with static contact 1
Setting, moving contact 23 are connected by being flexible coupling with power inleting terminal 4；First permanent magnet 6, the second permanent magnet 7 are individually positioned in quiet
The both sides of contact 1, moving contact 2.
As shown in figure 3, in both sides plus 7 two pieces of the first permanent magnet 6, the second permanent magnet permanent magnets, two pieces of permanent magnets are close
The one of static contact is pendant polar on the contrary, the N of the poles S of the first permanent magnet 6 and the second permanent magnet 7 is extremely close to static contact, in contact chamber
It is formed a kind of perpendicular to the magnetic field of dynamic/static contact line and current direction.Or first permanent magnet 6 the poles N and the second permanent magnet 7
S extremely close to static contact, as shown in fig. 6, it is still vertical with current direction to generate magnetic direction.
As shown in Figure 1, in the context of fig. 3, magnetic direction is inside perpendicular to plane, when electric current is flowed from power inleting terminal 4
Enter, when being flowed out from power outlet end 5, current direction 9 is directed toward static contact 1 from moving contact 2, according to left hand rule, magnetic field force direction
11 outside elongating arcs promote electric arc disjunction.
As shown in Fig. 2, in the context of fig. 3, magnetic direction is inside perpendicular to plane, when electric current is flowed from power outlet end 5
Enter, when being flowed out from power inleting terminal 4, current direction 9 is directed toward moving contact 2 from static contact 1, according to left hand rule, magnetic field force direction
11, to intermediate elongating arc, promote electric arc disjunction.Wall surface of the flexible circuit conductor 3 close to room 8 in sealing contact is placed, when electric arc is drawn to centre
When arc, flexible circuit conductor 3 will not be impacted.
As shown in figure 4, in the case of fig. 6, magnetic direction is outside perpendicular to plane, when electric current is flowed from power inleting terminal 4
Enter, when being flowed out from power outlet end 5, current direction 9 is directed toward static contact 1 from moving contact 2, according to left hand rule, magnetic field force direction
11, to intermediate elongating arc, promote electric arc disjunction.Wall surface of the flexible circuit conductor 3 close to room 8 in sealing contact is placed, when electric arc is drawn to centre
When arc, flexible circuit conductor 3 will not be impacted.
As shown in figure 5, in the case of fig. 6, magnetic direction is outside perpendicular to plane, when electric current is flowed from power outlet end 5
Enter, when being flowed out from power inleting terminal 4, current direction 9 is directed toward moving contact 2 from static contact 1, according to left hand rule, magnetic field force direction
11 outside elongating arcs promote electric arc disjunction.
For the closed type D.C. contactor of common double breaking points bridge-type, when electric current forward direction flows into contactor, two sections of electricity
Arc is pulled outwardly power-off arc, and when electric current flows counterflow through, two sections of electric arcs may result in short circuit simultaneously to intermediate elongating arc,
It is unfavorable for disjunction.The present invention is different from the D.C. contactor of double breaking points, always only one section of electric arc stress, when the current flow is reversed,
On the contrary, will not lead to short circuit, electric arc being capable of reliable disjunction in electric arc arcing direction.
Claims (5)
1. a kind of nonpolarity single-break D.C. contactor, it is characterised in that：In the contact chamber (8) of sealing be equipped with static contact (1),
Moving contact (2), be flexible coupling (3), power inleting terminal (4), power outlet end (5), the first permanent magnet (6), the second permanent magnet (7)；
Power inleting terminal (4), power outlet end (5) are equipped on contact chamber (8) top, power inleting terminal (4) and power outlet end (5)
Top is located at the contact chamber (8) of sealing outside, and the lower part of power inleting terminal (4) and power outlet end (5) is located at sealing
Contact chamber (8) in, the lower part of power outlet end (5) is connected with static contact (1), sets that there are one dynamic below static contact (1)
Contact (2), moving contact (2) are vertically oppositely arranged with static contact (1), and moving contact (2) passes through (3) and the power inleting terminal of being flexible coupling
(4) it is connected；First permanent magnet (6), the second permanent magnet (7) are individually positioned in the both sides of static contact (1), moving contact (2).
2. nonpolarity single-break D.C. contactor according to claim 1, it is characterised in that：First permanent magnet
(6), (7) two pieces of permanent magnets of the second permanent magnet are opposite with the one side polarity of static contact (1) close to moving contact (2).
3. nonpolarity single-break D.C. contactor according to claim 2, it is characterised in that：Two pieces of permanent magnets production
The direction in raw magnetic field and moving contact (2) are vertical with static contact (1) line direction, and with moving contact (2) and static contact (1) it
Between the current direction that flows through it is vertical.
4. nonpolarity single-break D.C. contactor according to claim 1, it is characterised in that：The moving contact (2) with
Static contact (1) and be flexible coupling (3) be located at sealing contact chamber (8) in, the first permanent magnet (6), the second permanent magnet (7) are parallel
It is placed on the contact chamber (8) of sealing outside.
5. nonpolarity single-break D.C. contactor according to claim 4, it is characterised in that：The contact chamber of the sealing
(8) it is filled with the inert gas of high pressure in or is evacuated, cooling electric arc is convenient for breaking arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810159276.2A CN108493022A (en) | 2018-02-26 | 2018-02-26 | Nonpolarity single-break D.C. contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810159276.2A CN108493022A (en) | 2018-02-26 | 2018-02-26 | Nonpolarity single-break D.C. contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108493022A true CN108493022A (en) | 2018-09-04 |
Family
ID=63340588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810159276.2A Pending CN108493022A (en) | 2018-02-26 | 2018-02-26 | Nonpolarity single-break D.C. contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108493022A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071682A (en) * | 2020-09-04 | 2020-12-11 | 陈金枢 | Processing method of ceramic high-voltage direct-current contactor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952655A (en) * | 2015-06-27 | 2015-09-30 | 贵州振华群英电器有限公司（国营第八九一厂） | Non-polar arc extinguishing system of high-voltage direct current contactor |
| CN205230962U (en) * | 2015-12-04 | 2016-05-11 | 苏州安来强电子科技有限公司 | Nonpolarity direct current contactor arc extinguishing mechanism |
| CN205264548U (en) * | 2015-12-16 | 2016-05-25 | 信阳师范学院 | Nonpolarity direct current contactor arc extinguishing mechanism |
| CN106409565A (en) * | 2015-07-30 | 2017-02-15 | 嘉灵科技有限公司 | Polarity insensitive arc quench |
| CN107346715A (en) * | 2016-05-06 | 2017-11-14 | 嘉灵科技有限公司 | Electric arc pushing meanss |
-
2018
- 2018-02-26 CN CN201810159276.2A patent/CN108493022A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952655A (en) * | 2015-06-27 | 2015-09-30 | 贵州振华群英电器有限公司（国营第八九一厂） | Non-polar arc extinguishing system of high-voltage direct current contactor |
| CN106409565A (en) * | 2015-07-30 | 2017-02-15 | 嘉灵科技有限公司 | Polarity insensitive arc quench |
| CN205230962U (en) * | 2015-12-04 | 2016-05-11 | 苏州安来强电子科技有限公司 | Nonpolarity direct current contactor arc extinguishing mechanism |
| CN205264548U (en) * | 2015-12-16 | 2016-05-25 | 信阳师范学院 | Nonpolarity direct current contactor arc extinguishing mechanism |
| CN107346715A (en) * | 2016-05-06 | 2017-11-14 | 嘉灵科技有限公司 | Electric arc pushing meanss |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071682A (en) * | 2020-09-04 | 2020-12-11 | 陈金枢 | Processing method of ceramic high-voltage direct-current contactor |
| CN112071682B (en) * | 2020-09-04 | 2022-11-25 | 陈金枢 | Processing method of ceramic high-voltage direct current contactor |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180904 |