CN107068466A - A kind of three-phase apparatus for fast switching suitable for high current - Google Patents
A kind of three-phase apparatus for fast switching suitable for high current Download PDFInfo
- Publication number
- CN107068466A CN107068466A CN201710415236.5A CN201710415236A CN107068466A CN 107068466 A CN107068466 A CN 107068466A CN 201710415236 A CN201710415236 A CN 201710415236A CN 107068466 A CN107068466 A CN 107068466A
- Authority
- CN
- China
- Prior art keywords
- contact
- high current
- power transmission
- transmission shaft
- phase apparatus
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/20—Driving mechanisms allowing angular displacement of the operating part to be effective in either direction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
-
- 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
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/24—Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts
-
- 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
Landscapes
- Breakers (AREA)
Abstract
The invention discloses a kind of three-phase apparatus for fast switching suitable for high current, the switching device includes switching mechanism, and the switching mechanism side is connected with actuating unit；The switching mechanism includes shell body, base, connecting plate, power transmission shaft；The shell body is arranged on the outside of the switching mechanism, and shell body one end is provided with the base；It is evenly distributed with the base on the inside of arc extinguishing grid pieces, base and is provided with connecting plate, contact is fixedly connected with the connecting plate；The power transmission shaft is arranged on inside the shell body, and main shaft is provided with the outside of power transmission shaft；On the main shaft contact is connected with positioned at the contact side.The present invention can be switched fast between three-phase heavy current circuit, and the line interruption time is reduced, and can be avoided because breaking arc causes the possibility of short circuit and program error to cause the situation of phase fault, contact reliability is strong, and service life is long.
Description
Technical field
The present invention relates to low-voltage electrical technical field, and in particular to a kind of three-phase suitable for high current is switched fast dress
Put.
Background technology
It is usually control uniline division for the device that high current is switched fast in current low-voltage electrical industry
Common relay, also occurs in that the single-pole double-throw relay for two alternate switchings, can but there is no an independent device
To realize the function being switched fast between three-phase heavy current circuit.
Currently, the three-phase for high current is switched fast the main combination using common relay or single-pole double-throw relay
And realize.Wherein using three common relays, disjunction, the closing order of three relays are controlled respectively by program, so that
Realize purpose of the circuit in three alternate switchings.The advantage of this method is technology maturation, cheap, has the disadvantage that switch logic is answered
Miscellaneous, switching time is long, no mechanism interlocking, no arc-control device.Using three single-pole double-throw relays, controlled respectively by program
The running order of three relays, so as to realize purpose of the circuit in three alternate switchings.The advantage of this method is technology more
Short circuit that is ripe and having mechanism interlocking to prevent switch logic from causing, has the disadvantage that switch logic is complicated, switching time is long, into
This higher, no arc-control device.
The content of the invention
, can be in the big electricity of three-phase it is an object of the invention to provide a kind of three-phase apparatus for fast switching suitable for high current
It is switched fast between Flow Line, the line interruption time is reduced；Switching device possesses arc-suppression function, it is to avoid because breaking arc causes short
The possibility on road；There is mechanism interlocking in device itself, it is to avoid because program error causes the situation of phase fault；Other device is also provided
The contact end pressure and contact over travel consistent with equal current class breaker, it is ensured that the contact reliability and machinery of switching device
Life-span.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of three-phase suitable for high current is switched fast dress
Put, the switching device includes switching mechanism, and the switching mechanism side is connected with actuating unit；The switching mechanism includes outer
Housing, base, connecting plate, power transmission shaft；The shell body is arranged on the outside of the switching mechanism, and shell body one end is provided with the bottom
Seat；It is evenly distributed with the base on the inside of arc extinguishing grid pieces, base and is provided with connecting plate, is fixedly connected with the connecting plate tactile
Point；The power transmission shaft is arranged on inside the shell body, and main shaft is provided with the outside of power transmission shaft；It is located at the contact one on the main shaft
Side is connected with contact.
A kind of three-phase apparatus for fast switching suitable for high current as described above, the contact is provided with 3 groups, and every group of contact is set
There are 2,3 groups of contacts are evenly distributed on the base.Contact is fixed, for the contact realized and selected, so that
Realize that the circuit of device is connected.
A kind of three-phase apparatus for fast switching suitable for high current as described above, the contact is provided with 2 groups, 2 groups of contacts pair
Title is distributed on the main shaft.Contact follows main axis, realizes disjunction and the closure of contact and contact.
A kind of three-phase apparatus for fast switching suitable for high current as described above, the main shaft periphery is arranged mounting flange,
Reed is provided between mounting flange and main shaft, the reed is in annular.Mounting flange is that device inner structure is provided a supporting role,
Electric action is also acted as simultaneously, and reed ensures the good contact of high current rotary body main shaft and mounting flange.
A kind of three-phase apparatus for fast switching suitable for high current as described above, the mounting flange is provided with annular groove, institute
Reed is stated in the annular groove.It is further ensured that the good contact of high current rotary body main shaft and mounting flange.
A kind of three-phase apparatus for fast switching suitable for high current as described above, the peripheral sheathed spring of the mounting flange,
The spring is in compressive state, and spring is used to make to compress between contact and contact.Spring provides contact end pressure, the end of contact
Pressure acts on the pressure on contact after referring to contact closure completely, and end pressure is determined by the final decrement of touch spring, it
Contact resistance when can make contact in closure state keeps lower value, it is ensured that contact and the reliable contacts of contact.
A kind of three-phase apparatus for fast switching suitable for high current as described above, the actuating unit uses stepper motor,
Stepper motor power output shaft connects the power transmission shaft.The stepper motor is connected with programmable logic controller (PLC), described to compile
Journey logic controller provides control signal for stepper motor, and programmable logic controller (PLC) is used for the rotation for controlling power transmission shaft, transmission
Axle drives main shaft to realize the rotation of contact, and contact of the contact rotation realization with contact is with separating.
A kind of three-phase apparatus for fast switching suitable for high current as described above, the switching device is provided with mutual interlocking gear,
Mutual interlocking gear uses mechanical interlock switch, and the mutual interlocking gear prevents commutation moment or the separated contactor of program error without going out
Arc causes phase fault.Mechanical interlock switch is to realize to interlock by mechanical part, such as two switches can not close simultaneously, can
To pass through mechanical lever so that when a switch closes, another switch is blocked by machinery and can not closed, mechanical interlocked reliability
Height, belongs to prior art.
The inventive method has the following advantages that：Switching device is driven to rotate special angle by actuating unit tactile so as to realize
Head, contact system disjunction and closure；Switching device realizes arc-suppression function by arc extinguishing grid pieces, it is to avoid because breaking arc causes short circuit
Possibility；There is mechanism interlocking in device itself, it is to avoid because program error causes the situation of phase fault；Other device also provide with
Equal current class breaker consistent contact end pressure and contact over travel, it is ensured that the contact reliability of switching device and mechanical longevity
Life.
Brief description of the drawings
Fig. 1 is applied to the three-phase apparatus for fast switching external structure schematic diagram of high current；
Fig. 2 is applied to the three-phase apparatus for fast switching internal structure schematic diagram of high current；
Fig. 3 is applied to the three-phase apparatus for fast switching contact and contact position structural representation of high current.
Embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
As shown in Figure 1 and Figure 2, a kind of three-phase apparatus for fast switching suitable for high current, the switching device includes switching
Mechanism 1, the side of switching mechanism 1 is connected with actuating unit 2；The switching mechanism 1 includes shell body 13, base 5, connecting plate
4th, power transmission shaft 10；The shell body 13 is arranged on the outside of switching mechanism 1, and the one end of shell body 13 is provided with the base 5；It is described
Arc extinguishing grid pieces 3 are evenly distributed with base 5, the inner side of base 5 is provided with connecting plate 4, the connecting plate 4 and is fixedly connected with contact 6；
The power transmission shaft 10 is arranged on inside the shell body 13, and the outside of power transmission shaft 10 is provided with main shaft 8；It is located on the main shaft 8 described
The side of contact 6 is connected with contact 7.
The contact 6 is provided with 3 groups, and every group of contact 6 is provided with 2, and 3 groups of contacts 6 are evenly distributed on the base 5.Contact 6
It is fixed, for realizing that the contact 7 with selecting is contacted, so as to realize that the circuit of device is connected.
The contact 7 is provided with 2 groups, and 2 groups of contacts 7 are symmetrically distributed on the main shaft 8.Contact 7 follows main shaft 8 to rotate, real
Disjunction and closure of the existing contact 7 with contact 6.
The periphery of main shaft 8 is arranged mounting flange 12, and reed 11, the reed are provided between mounting flange 12 and main shaft 8
11 be in annular.Mounting flange 12 is that device inner structure is provided a supporting role, while also acting as electric action, reed 11 ensures greatly
The good contact of electric current rotary body main shaft 8 and mounting flange 12.
The mounting flange 12 is provided with annular groove, and the reed 11 is located in the annular groove.It is further ensured that high current is revolved
Turn the good contact of main shaft 8 and mounting flange 12.
The peripheral sheathed spring 9 of mounting flange 12, the spring 9 is in compressive state, and spring 9 is used to make the He of contact 7
Compressed between contact 6.Spring 9 provides the end pressure of contact 7, and the end pressure of contact is acted on contact after referring to contact closure completely
Pressure, end pressure determined by the final decrement of touch spring, and contact resistance when it can make the contact be in closure state is protected
Hold lower value, it is ensured that contact 7 and the reliable contacts of contact 6.
The actuating unit 2 uses stepper motor, and stepper motor power output shaft connects the power transmission shaft 10.The stepping
Motor connection has programmable logic controller (PLC), and the programmable logic controller (PLC) provides control signal for stepper motor, may be programmed
Logic controller is used for the rotation for controlling power transmission shaft 10, and the drive main shaft 8 of power transmission shaft 10 realizes the rotation of contact 7, and contact 7 rotates reality
Now the contact with contact 6 is with separating.
The switching device is provided with mutual interlocking gear, and mutual interlocking gear uses mechanical interlock switch, and the mutual interlocking gear prevents from changing
Phase moment or the separated contactor of program error cause phase fault without arc extinguishing.
As shown in figure 3, in the present embodiment, current state is that contact 71 is contacted with contact 61, if necessary to contact 7 and
Contact 62 is contacted, and most fast scheme is that actuating unit 2 turns clockwise 60 °, then makes contact 72 by power transmission shaft 10, main shaft 8
Contacted with contact 62.Using stepper motor stepping angle as 1.8 °, driver pulse frequency is 2400p/s, is calculated without subdivision,
60 ° of rotation needs used time 60/ (1.8*2400)=0.014s.Switch circuit if necessary to special time, then adjust stepper motor
The pulse frequency of driver.
The above-mentioned handover operation process that contact 62 is switched to from contact 61, while suitable for switching to contact from contact 62
63rd, the handover operation of contact 61 is switched to from contact 63.For switching to contact 63 from contact 61, switching to contact from contact 62
61 and the handover operation of contact 62 is switched to from contact 63, its principle is consistent with above-mentioned switching, the simply rotation of actuating unit 2
By being changed to clockwise counterclockwise.
The technical scheme provided from above embodiment of the present invention, embodiment of the present invention by actuating unit,
Under the control of programmable logic controller (PLC), switching device rotation special angle is driven to realize contact system disjunction and closure.
The arc extinguishing grid pieces of switching device possess arc-suppression function, it is to avoid because breaking arc causes the possibility of short circuit, while device itself is present
Mechanism is interlocked, it is to avoid because program error causes the situation of phase fault, device is also provided and equal current class breaker in addition
Consistent contact end pressure and contact over travel, it is ensured that the contact reliability of switching device and mechanical life.
Although above with general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (9)
1. a kind of three-phase apparatus for fast switching suitable for high current, the switching device includes switching mechanism, the switching machine
Structure side is connected with actuating unit；It is characterized in that：The switching mechanism includes shell body, base, connecting plate and power transmission shaft；Institute
State shell body to be arranged on the outside of the switching mechanism, shell body one end is provided with the base；It is evenly distributed with and goes out on the base
It is provided with the inside of arc grid, base on connecting plate, the connecting plate and is fixedly connected with contact；The power transmission shaft is arranged on the shell
Main shaft is provided with the outside of internal portion, power transmission shaft；On the main shaft contact is connected with positioned at the contact side.
2. a kind of three-phase apparatus for fast switching suitable for high current according to claim 1, it is characterised in that：The contact
Provided with 3 groups, every group of contact is provided with 2, and 3 groups of contacts are evenly distributed on the base.
3. a kind of three-phase apparatus for fast switching suitable for high current according to claim 1 or claim 2, it is characterised in that：It is described
Contact is provided with 2 groups, and 2 groups of contacts are symmetrically distributed on the main shaft.
4. a kind of three-phase apparatus for fast switching suitable for high current according to claim 1, it is characterised in that：The main shaft
Periphery is arranged mounting flange, and reed is provided between mounting flange and main shaft, and the reed is in annular.
5. a kind of three-phase apparatus for fast switching suitable for high current according to claim 4, it is characterised in that：The fixation
Flange is provided with annular groove, and the reed is located in the annular groove.
6. a kind of three-phase apparatus for fast switching suitable for high current according to claim 4, it is characterised in that：The fixation
Flange periphery sheathed spring, the spring is in compressive state, and spring is used to make to compress between contact and contact.
7. a kind of three-phase apparatus for fast switching suitable for high current according to claim 1, it is characterised in that：The power
Mechanism uses stepper motor, and stepper motor power output shaft connects the power transmission shaft.
8. a kind of three-phase apparatus for fast switching suitable for high current according to claim 7, it is characterised in that：The stepping
Motor connection has programmable logic controller (PLC), and the programmable logic controller (PLC) provides control signal for stepper motor, may be programmed
Logic controller is used for the rotation for controlling power transmission shaft, and power transmission shaft drives main shaft to realize the rotation of contact, and contact rotation realization is with touching
The disjunction of point and closure.
9. a kind of three-phase apparatus for fast switching suitable for high current according to claim 1, it is characterised in that：The switching
Device is provided with mutual interlocking gear, and mutual interlocking gear uses mechanical interlock switch of the prior art, and the mutual interlocking gear prevents commutation wink
Between or the separated contactor of program error cause phase fault without arc extinguishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710415236.5A CN107068466A (en) | 2017-06-05 | 2017-06-05 | A kind of three-phase apparatus for fast switching suitable for high current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710415236.5A CN107068466A (en) | 2017-06-05 | 2017-06-05 | A kind of three-phase apparatus for fast switching suitable for high current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107068466A true CN107068466A (en) | 2017-08-18 |
Family
ID=59616502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710415236.5A Pending CN107068466A (en) | 2017-06-05 | 2017-06-05 | A kind of three-phase apparatus for fast switching suitable for high current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107068466A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787522A (en) * | 2019-03-11 | 2019-05-21 | 江苏罗宾康自动化科技有限公司 | A kind of online switching method of FVC and SVC |
| CN110400708A (en) * | 2019-07-30 | 2019-11-01 | 山西伟奇电器技术有限公司 | Far and near control commutation device for explosion-proof switchgear |
| CN116600069A (en) * | 2023-07-17 | 2023-08-15 | 北京兆科恒兴科技有限公司 | Video signal switching device and transmission switching method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2201719Y (en) * | 1994-07-16 | 1995-06-21 | 苏中保 | Universal square switch |
| CN2205051Y (en) * | 1994-09-21 | 1995-08-09 | 伊丕连 | Rotary switch driven by servo motor |
| CN1484843A (en) * | 2001-02-14 | 2004-03-24 | Switch contact device | |
| CN2770067Y (en) * | 2005-02-25 | 2006-04-05 | 林鼎彪 | Multifunction lamp light shifting switch |
| CN201549421U (en) * | 2009-11-27 | 2010-08-11 | 河南亚丰电瓷电器有限公司 | Contact terminal of disconnecting switch |
| CN105448557A (en) * | 2015-12-15 | 2016-03-30 | 成都迅德科技有限公司 | Automatic change-over switch |
| CN206742125U (en) * | 2017-06-05 | 2017-12-12 | 泰豪科技股份有限公司 | A kind of three-phase apparatus for fast switching suitable for high current |
-
2017
- 2017-06-05 CN CN201710415236.5A patent/CN107068466A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2201719Y (en) * | 1994-07-16 | 1995-06-21 | 苏中保 | Universal square switch |
| CN2205051Y (en) * | 1994-09-21 | 1995-08-09 | 伊丕连 | Rotary switch driven by servo motor |
| CN1484843A (en) * | 2001-02-14 | 2004-03-24 | Switch contact device | |
| CN2770067Y (en) * | 2005-02-25 | 2006-04-05 | 林鼎彪 | Multifunction lamp light shifting switch |
| CN201549421U (en) * | 2009-11-27 | 2010-08-11 | 河南亚丰电瓷电器有限公司 | Contact terminal of disconnecting switch |
| CN105448557A (en) * | 2015-12-15 | 2016-03-30 | 成都迅德科技有限公司 | Automatic change-over switch |
| CN206742125U (en) * | 2017-06-05 | 2017-12-12 | 泰豪科技股份有限公司 | A kind of three-phase apparatus for fast switching suitable for high current |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787522A (en) * | 2019-03-11 | 2019-05-21 | 江苏罗宾康自动化科技有限公司 | A kind of online switching method of FVC and SVC |
| CN110400708A (en) * | 2019-07-30 | 2019-11-01 | 山西伟奇电器技术有限公司 | Far and near control commutation device for explosion-proof switchgear |
| CN116600069A (en) * | 2023-07-17 | 2023-08-15 | 北京兆科恒兴科技有限公司 | Video signal switching device and transmission switching method thereof |
| CN116600069B (en) * | 2023-07-17 | 2023-10-13 | 北京兆科恒兴科技有限公司 | Video signal switching device and transmission switching method thereof |
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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 |
Application publication date: 20170818 |
|
| RJ01 | Rejection of invention patent application after publication |