CN206292248U - A kind of device for detecting transverse magnetic field Vacuum switching arc rotary speed - Google Patents
A kind of device for detecting transverse magnetic field Vacuum switching arc rotary speed Download PDFInfo
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- CN206292248U CN206292248U CN201621290147.XU CN201621290147U CN206292248U CN 206292248 U CN206292248 U CN 206292248U CN 201621290147 U CN201621290147 U CN 201621290147U CN 206292248 U CN206292248 U CN 206292248U
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Abstract
The utility model provides a kind of device for detecting transverse magnetic field Vacuum switching arc rotary speed, is engaged with vacuum interrupter, and vacuum interrupter includes upper end cover, insulating ceramics shell, bottom end cover, movable feeler lever, cup-shaped contact and copper radome；Described device includes that skeleton, at least one realize the signal detection mechanism that vacuum interrupter electric arc rotary speed is calculated for measuring electric arc in the Hall sensor of the cup-shaped contact surface rotation generation frequency of oscillation magnetic field intensity signal consistent with electric arc speed and for magnetic field intensity signal collection and signal analysis and processing；Wherein, skeleton is arranged on the insulating ceramics shell of vacuum interrupter；Each Hall sensor is both secured on skeleton；Signal detection mechanism is located at vacuum extinction outdoor, and is connected with each Hall sensor.Implement the utility model, high speed camera can be overcome relatively costly and the problems such as particular design vacuum interrupter demand, and can realize being accurately judged to electric arc rotational case.
Description
Technical field
The utility model is related to Vacuum switching arc detection technique field, more particularly to a kind of for detecting that transverse magnetic field is true
The device of the powered-down hook rotary speed of air switch.
Background technology
With the development of electrical technology, vacuum switch is because having fast medium recovery speed, environmental protection and electrical endurance long
The advantages of, it is widely used in mesolow electric field, and divided according to the structure type of contact, vacuum switch leads to
Often it is divided into transverse magnetic field vacuum switch or longitudinal magnetic field vacuum switch.In transverse magnetic field vacuum switch, the transverse magnetic field vacuum
The contact of switch includes helicla flute contact and cup-shaped contact, and the operation principle of its correspondence arc-chutes is to flow through contact by electric current to produce
Raw transverse magnetic field causes that vacuum arc rotates at a high speed in contact surface, it is to avoid the ablation of contact surface localized hyperthermia, and then improves
Connecting-disconnecting function.
At present, for the diagnosis and analysis of transverse magnetic field Vacuum switching arc kinetic characteristic, traditional method is by height
Fast CMOS cameras shoot arc image, then process the motion for judging electric arc by arc image, and the shortcoming of the method is：
（1）Two-dimensional image information can only be got from arc image, but electric arc rotational case cannot be accurately judged to；（2）Even if adopting
Shoot arc image simultaneously to obtain electric arc rotary course with two high speed cameras or two vertical angles, but electric arc shoots
Effect and angle can influence the accuracy of measurement result；（3）Can be caused using high speed camera it is relatively costly, and shoot electric arc need
Or to be provided with vacuum cavity in the transparent vacuum arc-chutes of observation window is carried out, vacuum interrupter is caused to need special setting
Meter.
Utility model content
The utility model embodiment technical problem to be solved is, there is provided one kind is for detecting that transverse magnetic field vacuum is opened
The device of powered-down hook rotary speed, can overcome high speed camera relatively costly and particular design vacuum interrupter demand etc. is asked
Topic, and can realize being accurately judged to electric arc rotational case.
In order to solve the above-mentioned technical problem, the utility model embodiment provides a kind of for detecting that transverse magnetic field vacuum is opened
The device of powered-down hook rotary speed, it is engaged with the vacuum interrupter of transverse magnetic field vacuum switch, the vacuum interrupter bag
Include upper end cover, insulating ceramics shell, bottom end cover, movable feeler lever, cup-shaped contact and copper radome；Described device includes skeleton, extremely
Few one is used to measure electric arc in the cup-shaped contact surface rotation generation frequency of oscillation magnetic field consistent with electric arc speed
The Hall sensor of strength signal and for magnetic field intensity signal collection and signal analysis and processing realize vacuum interrupter electric arc
The signal detection mechanism that rotary speed is calculated；Wherein,
The skeleton is arranged on the insulating ceramics shell of the vacuum interrupter；
Each Hall sensor is both secured on the skeleton；
The signal detection mechanism is located at the vacuum extinction outdoor, and is connected with each Hall sensor.
Wherein, the skeleton is arranged at the middle part of the insulating ceramics shell.
Wherein, the Hall sensor has eight, and eight Hall sensors in certain rule arranged distribution in institute
State on skeleton.
Wherein, the skeleton is formed in annular shape, and between two neighboring Hall sensor and frame center point
Angle is 45 degree.
Wherein, the signal detection mechanism includes the signal acquisition module, signal processing module, the intellectual monitoring that sequentially connect
Module and master controller.
Implement the utility model embodiment, have the advantages that：
In the utility model embodiment, product is rotated in cup-shaped contact surface because Hall sensor can measure electric arc
Raw magnetic field intensity signal, the frequency of oscillation of the magnetic field intensity signal is consistent with electric arc speed such that it is able to according to institute
The frequency of oscillation of the magnetic field intensity signal for measuring rapidly and accurately determines electric arc rotary speed, and to reach can overcome high speed phase
Machine is relatively costly and the problems such as particular design vacuum interrupter demand, and can realize being accurately judged to electric arc rotational case
Purpose.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, obtaining other accompanying drawings according to these accompanying drawings still falls within category of the present utility model.
The device for detecting transverse magnetic field Vacuum switching arc rotary speed that Fig. 1 is provided for the utility model embodiment
The planar structure schematic diagram being engaged with vacuum interrupter；
Fig. 2 is the A-A of Fig. 1 to schematic diagram；
Fig. 3 is the system structure diagram of Tu1Zhong signal detections mechanism.
Specific embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type is described in further detail.
As shown in Figure 1 to Figure 3, be in the utility model embodiment, there is provided one kind be used to detect that transverse magnetic field vacuum is opened
The device of powered-down hook rotary speed, it is engaged with the vacuum interrupter of transverse magnetic field vacuum switch, and vacuum interrupter includes upper
End cap 1, insulating ceramics shell 2, bottom end cover 5, movable feeler lever 6, cup-shaped contact 7 and copper radome 8；
The device includes that skeleton 3, at least one are used to measure electric arc in the surface of cup-shaped contact 7 rotation generation frequency of oscillation and electricity
The Hall sensor 4 of the consistent magnetic field intensity signal of arc speed and for magnetic field intensity signal collection and signal analysis
The signal detection mechanism 9 that vacuum interrupter electric arc rotary speed is calculated is realized in treatment；Wherein,
Skeleton 3 is arranged on the insulating ceramics shell 2 of vacuum interrupter；
Each Hall sensor 4 is both secured on skeleton 3；
Signal detection mechanism 9 is located at vacuum extinction outdoor, and is connected with each Hall sensor 4.
It should be noted that the middle part that skeleton 3 is located at the insulating ceramics shell 2 of vacuum interrupter is optimal, so have
The magnetic field that the measurement rotating the arc of effect is produced, rather than the magnetic field that quiet moving contact is produced in itself.
In the utility model embodiment, in the cyclic motion process of cup-shaped contact 7, the transverse magnetic that cup-shaped contact 7 is produced
Field causes that electric arc rotates at a high speed along the surface of cup-shaped contact 7, and when electric arc arc column is near Hall sensor 3, Hall sensor 3 is surveyed
The magnetic field intensity signal of amount is maximum, and when electric arc arc column is away from Hall sensor 3, the magnetic field intensity of the measurement of Hall sensor 3
Signal reduces, and the frequency of oscillation of magnetic field intensity signal that Hall sensor 3 is measured is consistent with electric arc speed, therefore
The frequency of oscillation of the magnetic field intensity signal that can be measured according to Hall sensor 3 is fast rapidly and accurately to determine electric arc rotation
Degree, reaching can overcome high speed camera relatively costly and the problems such as particular design vacuum interrupter demand, and can realize standard
Really judge the purpose of electric arc rotational case.
Further, in order to the more accurate real time position for obtaining electric arc in electric arc rotary course, therefore Hall are passed
Sensor 4 has eight, and eight Hall sensors 4 in certain rule arranged distribution on skeleton 3, such as skeleton 3 in annular shape, and
The angle formed between two neighboring Hall sensor 4 and the central point of skeleton 3 is 45 degree, so that each Hall sensor
3 signal period is consistent, and simply phase differs 45 degree.
Further, signal detection mechanism 9 include sequentially connect signal acquisition module 91, signal processing module 92,
Intellectual monitoring module 93 and master controller 94.
In the utility model embodiment, the operation principle of signal detection mechanism 9 is：Realized by signal acquisition module 91
Magnetic field intensity signal to eight Hall sensors 3 is detected, then by signal processing module 92 to magnetic field intensity signal
It is filtered and nurses one's health, and is further completed to eight magnetic field intensity signals of Hall sensor 3 by intellectual monitoring module 93
In feeding master controller 94.The master controller 94 pairs is by eight magnetic field intensity signals of Hall sensor 3 after signal transacting
Processed, obtained real-time magnetic field Changing Pattern and frequency, and then obtain electric arc rotary speed.In order to more accurately be rotated
The real time position of electric arc, can with the magnetic field intensity signal of Hall sensor 3 it is most strong when corresponding Hall sensor location position be
The position of electric arc arc column, and then rotating the arc is obtained in contact surface real time position distribution situation.
Implement the utility model embodiment, have the advantages that：
In the utility model embodiment, product is rotated in cup-shaped contact surface because Hall sensor can measure electric arc
Raw magnetic field intensity signal, the frequency of oscillation of the magnetic field intensity signal is consistent with electric arc speed such that it is able to according to institute
The frequency of oscillation of the magnetic field intensity signal for measuring rapidly and accurately determines electric arc rotary speed, and to reach can overcome high speed phase
Machine is relatively costly and the problems such as particular design vacuum interrupter demand, and can realize being accurately judged to electric arc rotational case
Purpose.
Above disclosed is only a kind of preferred embodiment of the utility model, can not limit this practicality with this certainly
New interest field, therefore the equivalent variations made according to the utility model claim, still belong to what the utility model was covered
Scope.
Claims (5)
1. a kind of device for detecting transverse magnetic field Vacuum switching arc rotary speed, it is true with transverse magnetic field vacuum switch
Empty arc-chutes are engaged, and the vacuum interrupter includes upper end cover（1）, insulating ceramics shell（2）, bottom end cover（5）, movable feeler lever
（6）, cup-shaped contact（7）With copper radome（8）；Characterized in that, described device includes skeleton（3）, at least one be used for measure
Electric arc is in the cup-shaped contact（7）Surface rotation produces the Hall of the frequency of oscillation magnetic field signal consistent with electric arc speed
Sensor（4）And realize that vacuum interrupter electric arc rotary speed is calculated for magnetic field intensity signal collection and signal analysis and processing
Signal detection mechanism（9）；Wherein,
The skeleton（3）It is arranged at the insulating ceramics shell of the vacuum interrupter（2）On；
Each Hall sensor（4）It is both secured to the skeleton（3）On；
The signal detection mechanism（9）Positioned at the vacuum extinction outdoor, and with each Hall sensor（4）Homogeneously
Even.
2. device as claimed in claim 1, it is characterised in that the skeleton（3）It is arranged at the insulating ceramics shell（2）'s
Middle part.
3. device as claimed in claim 2, it is characterised in that the Hall sensor（4）There are eight, and eight Halls
Sensor（4）In certain rule arranged distribution in the skeleton（3）On.
4. device as claimed in claim 3, it is characterised in that the skeleton（3）In annular shape, and two neighboring hall sensing
Device（4）With the skeleton（3）The angle formed between central point is 45 degree.
5. device as claimed in claim 4, it is characterised in that the signal detection mechanism（9）Including the signal for sequentially connecting
Acquisition module（91）, signal processing module（92）, intellectual monitoring module（93）And master controller（94）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621290147.XU CN206292248U (en) | 2016-11-29 | 2016-11-29 | A kind of device for detecting transverse magnetic field Vacuum switching arc rotary speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621290147.XU CN206292248U (en) | 2016-11-29 | 2016-11-29 | A kind of device for detecting transverse magnetic field Vacuum switching arc rotary speed |
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| Publication Number | Publication Date |
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| CN206292248U true CN206292248U (en) | 2017-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621290147.XU Active CN206292248U (en) | 2016-11-29 | 2016-11-29 | A kind of device for detecting transverse magnetic field Vacuum switching arc rotary speed |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443048A (en) * | 2016-11-29 | 2017-02-22 | 深圳供电局有限公司 | Device for detecting electric arc rotating speed of transverse magnetic field vacuum switch |
| CN114660513A (en) * | 2022-02-21 | 2022-06-24 | 北京航空航天大学 | Magnetic field characteristic measuring device of high-power magnetic plasma thruster |
-
2016
- 2016-11-29 CN CN201621290147.XU patent/CN206292248U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443048A (en) * | 2016-11-29 | 2017-02-22 | 深圳供电局有限公司 | Device for detecting electric arc rotating speed of transverse magnetic field vacuum switch |
| CN114660513A (en) * | 2022-02-21 | 2022-06-24 | 北京航空航天大学 | Magnetic field characteristic measuring device of high-power magnetic plasma thruster |
| CN114660513B (en) * | 2022-02-21 | 2022-09-23 | 北京航空航天大学 | Magnetic field characteristic measuring device of high-power magnetic plasma thruster |
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