CN107290659A - The apparatus and method that a kind of magnetic latching relay is detected without auxiliary contact break-make - Google Patents
The apparatus and method that a kind of magnetic latching relay is detected without auxiliary contact break-make Download PDFInfo
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- CN107290659A CN107290659A CN201710621964.1A CN201710621964A CN107290659A CN 107290659 A CN107290659 A CN 107290659A CN 201710621964 A CN201710621964 A CN 201710621964A CN 107290659 A CN107290659 A CN 107290659A
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- latching relay
- hall sensor
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- magnetic latching
- hall
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
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- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The invention discloses the apparatus and method that a kind of magnetic latching relay is detected without auxiliary contact break-make.The device includes magnetic latching relay, the first Hall sensor and controller.First Hall sensor is close to magnetic latching relay setting so that when magnetic latching relay connected state changes and the first Hall sensor is able to detect that corresponding changes of magnetic field when causing permanent magnetic field to change.Controller connects magnetic latching relay and the first Hall sensor, and for controlling magnetic latching relay to switch between connection and off-state, and the changes of magnetic field for being detected by the first Hall sensor judges the on off operating mode residing for magnetic latching relay.
Description
Technical field
The present invention relates to the detection of the break-make of relay, the more particularly to detection of magnetic latching relay break-make.
Background technology
In recent years, developing rapidly with electronics and information industry, based on the relay of element be widely used and be in
The automation control areas such as electricity, communication, automobile, instrument and meter, machinery equipment, Aero-Space.Nearest statistics shows,
In electronic element products, for annual sales amount, relay has become the first big product.Magnetic latching relay is to send out in recent years
A kind of new type of relay that exhibition is got up, it plays an important role as one of Important Components of intelligent control.And other
Electromagnetic relay is the same, and turn on automatically and cutting action are played to circuit.Except that, magnetic latching relay it is normally closed or normal
Open state is entirely to rely on the effect of permanent-magnet steel, the conversion of its on off state be the pulse electrical signal triggering by one fixed width and
Complete, with power saving, performance stabilization, small volume, large carrying capacity, the characteristics of there is superior performance compared to other relays,
So magnetic latching relay is increasingly widely used.
In the prior art, judging the break-make of relay generally has following several method：First method is to set collateral branch's electricity
Road, judges whether relay connects by the voltage of detection output；Second method is whether there is by inductive output end
Electric current judges whether relay connects；The third method is to judge relay moving contact by proximity transducer or photoelectric sensor
Position whether be located at relay connect position on judge whether relay connects.Above-mentioned several method respectively has advantage and disadvantage.
The content of the invention
Problem to be solved by this invention：Magnetic latching relay break-make is detected.
To solve the above problems, the scheme that the present invention is used is as follows：
According to a kind of device that is detected without auxiliary contact break-make of magnetic latching relay of the present invention, including magnetic latching relay, the
One Hall sensor and controller；First Hall sensor is close to the magnetic latching relay and set so that when the magnetic
First Hall sensor described in when guard relay connected state changes and causes the permanent magnetic field to change can be detected
To corresponding changes of magnetic field；The controller connects the magnetic latching relay and the first Hall sensor, and for controlling institute
Magnetic latching relay is stated between connection and off-state switch, and for being detected by first Hall sensor
Changes of magnetic field judges the on off operating mode residing for the magnetic latching relay.
Further, the device detected according to a kind of magnetic latching relay of the present invention without auxiliary contact break-make, the device is also
Including the second Hall sensor；Second Hall sensor connects the controller, and away from the magnetic latching relay, makes
Second hall sensing described in when the proper magnetic latching relay connected state changes and causes the permanent magnetic field to change
Device can not detect corresponding changes of magnetic field；The controller is additionally operable to the magnetic field detected by second Hall sensor
Judge whether magnetic interference.
Further, the device detected according to a kind of magnetic latching relay of the present invention without auxiliary contact break-make, described first
Magnetic shielding cover is additionally provided with around Hall sensor.
Further, the device detected according to a kind of magnetic latching relay of the present invention without auxiliary contact break-make, described first
Hall sensor is either monopole Hall sensor or is bipolar Hall sensor, or is full pole Hall sensor.
Further, the device detected according to a kind of magnetic latching relay of the present invention without auxiliary contact break-make, described first
Hall sensor is made up of two different Hall sensors in position；The controller passes through first Hall sensor
Whether the relay connected state that two Hall sensors are judged unanimously judges whether magnetic interference.
Further, the device detected according to a kind of magnetic latching relay of the present invention without auxiliary contact break-make, described first
Two Hall sensors of Hall sensor are either two N poles Hall sensors or are two S poles Hall sensors, or
Person is a N poles Hall sensor and a S poles Hall sensor, is either two full pole Hall sensors or is two
Bipolar Hall sensor.
The method detected according to a kind of magnetic latching relay of the present invention without auxiliary contact break-make, this method is related to control
Device, magnetic latching relay and the first Hall sensor；In this method, controller is by being close to the first of the magnetic latching relay
The changes of magnetic field that Hall sensor is detected judges the break-make of the magnetic latching relay.
Further, the method detected according to a kind of magnetic latching relay of the present invention without auxiliary contact break-make, this method is also
It is related to the second Hall sensor away from the magnetic latching relay；In this method, controller is also passed by second Hall
The magnetic field that sensor is detected judges whether magnetic interference.
Further, the method detected according to a kind of magnetic latching relay of the present invention without auxiliary contact break-make, described first
Hall sensor is made up of two different Hall sensors in position；In this method, controller also passes through first Hall
Whether the relay connected state that two Hall sensors of sensor are judged unanimously judges whether magnetic interference.
Further, the method detected according to a kind of magnetic latching relay of the present invention without auxiliary contact break-make, works as controller
In a period of time when controlling the magnetic latching relay to switch between connection and off-state and after switching, controller stops
Detect the break-make of the magnetic latching relay.
The technique effect of the present invention is as follows：
1st, the present invention is a kind of contactless relay on-off detection without auxiliary contact, it is to avoid contact relay on-off
The existing security risks of detection.
2nd, relay on-off of the invention detection need not rely upon with the presence or absence of load.
3rd, the present invention is detected by magnetic screen and magnetic interference so that the diamagnetic field interference performance of the device is strong.
4th, circuit structure of the present invention is simple, and detection accuracy and reliability are high.
Brief description of the drawings
Fig. 1 and Fig. 2 are the overall structure diagrams of the embodiment of the present invention 1.Wherein, Fig. 1 is magnetic latching relay connected state
State, Fig. 2 is magnetic latching relay connected state off-state.
Fig. 3 is the overall structure diagram of the embodiment of the present invention 2.
Fig. 4 is the overall structure diagram of the embodiment of the present invention 3.
Fig. 5 is the overall structure diagram of the embodiment of the present invention 4.
Embodiment
The present invention is described in further details below in conjunction with the accompanying drawings.
Embodiment 1
The device that a kind of magnetic latching relay is detected without auxiliary contact break-make, as shown in Figure 1 and Figure 2, including magnetic latching relay 1,
First Hall sensor 2, controller 3 and magnetic shielding cover 4.Magnetic latching relay 1 includes moving contact, static contact, U-shaped electromagnet
11st, the I-shaped permanent magnetism pendulum 12 that can be swung around swinging axle 121.Fig. 1 and Fig. 2 eliminate moving contact and static contact.U-shaped
The two ends of electromagnet 11 are respectively arranged with yoke C, D.Swinging axle 121 is located between yoke C, D.The top of I-shaped permanent magnetism pendulum 12
For N poles, lower section is S poles.When I-shaped permanent magnetism pendulum 12 is located at Fig. 1 positions, now, the N poles of I-shaped permanent magnetism pendulum 12 are tightly inhaled
Yoke C top is attached to, the S poles of I-shaped permanent magnetism pendulum 12 are tightly adsorbed in yoke D lower section, now, magnetic latching relay 1
Moving contact is tightly attached on static contact so that magnetic latching relay 1 is held in connected state in the case where I-shaped permanent magnetism puts 12 drive
State.When I-shaped permanent magnetism pendulum 12 is located at Fig. 2 positions, now, the N poles of I-shaped permanent magnetism pendulum 12 are tightly adsorbed in the upper of yoke D
Side, the S poles of I-shaped permanent magnetism pendulum 12 are tightly adsorbed in yoke C lower section, and now, the moving contact of magnetic latching relay 1 is in I-shaped
Magnetic latching relay 1 is caused to be held in off-state away from static contact under the drive of shape permanent magnetism pendulum 12.Magnetic latching relay 1 is connected
Controller 3, specifically, the connection controller 3 of U-shaped electromagnet 11 of magnetic latching relay 1.When magnetic latching relay 1 is held in
During connected state, the driving of controller 3 U-shaped electromagnet 11 causes yoke C to be N poles, and yoke D is S poles, by U-shaped electromagnet 11 with
The attracting effect of the homopolar-repulsion heteropole in magnetic field between I-shaped permanent magnetism pendulum 12, I-shaped permanent magnetism pendulum 12 is rocked to Fig. 2 position
So that the N poles of I-shaped permanent magnetism pendulum 12 are adsorbed on yoke D, the S poles of I-shaped permanent magnetism pendulum 12 are adsorbed on yoke C, so that
The moving contact of magnetic latching relay 1 is obtained away from static contact, so that magnetic latching relay 1 is switched into off-state.When magnetic is kept
After relay 1 disconnects, controller 3 disconnects the exciting current of U-shaped electromagnet 11, and magnetic latching relay 1 remains continuously disconnection shape
State.When magnetic latching relay 1 is held in off-state, the driving U-shaped of controller 3 electromagnet 11 causes yoke C to be S poles, yoke D
It is I-shaped by the attracting effect of the homopolar-repulsion heteropole in magnetic field between U-shaped electromagnet 11 and I-shaped permanent magnetism pendulum 12 for N poles
Permanent magnetism pendulum 12 is rocked to Fig. 1 position so that the N poles of I-shaped permanent magnetism pendulum 12 are adsorbed on yoke C, and I-shaped permanent magnetism puts 12 S
Pole is adsorbed on yoke D, so that the moving contact of magnetic latching relay 1 is in contact with static contact, so that magnetic is kept into relay
Device 1 switches to connected state.After magnetic latching relay 1 is connected, controller 3 disconnects the exciting current of U-shaped electromagnet 11, and magnetic is protected
Hold relay 1 and remain continuously connected state.
In the present embodiment, magnetic latching relay 1 uses a kind of outsourcing piece, moving contact, static contact, U-shaped electromagnet 11
And I-shaped permanent magnetism pendulum 12 is wrapped within the housing of closing.Magnetic latching relay 1, the first Hall sensor 2, controller 3
And magnetic shielding cover 4 is installed on same circuit board.Controller 3 connects the U-shaped electromagnet 11 of magnetic latching relay 1, thus
Controller 3 can be by controlling the exciting current of U-shaped electromagnet 11, so as to control magnetic latching relay 1 to connect and cutting of disconnecting
Change.Controller 3 generally connects control main frame by data wire and/or control line.
First Hall sensor 2 is arranged at outside the housing of magnetic latching relay 1, and is close to the shell of magnetic latching relay 1
Body.Specifically, the first Hall sensor 2 is arranged at outside the housing of magnetic latching relay 1, and 12 N is put close to I-shaped permanent magnetism
The yoke C sides of pole.When the N poles that I-shaped permanent magnetism puts 12 are close to yoke C, S poles and are close to yoke D, it is, when magnetic keep after
When electrical equipment 1 is in connected state, because the N of I-shaped permanent magnetism pendulum 12 is extremely away from the first Hall sensor 2, I-shaped permanent magnetism pendulum 12
Decay rapidly in magnetic field so that the first Hall sensor 2 can not detect the magnetic field of I-shaped permanent magnetism pendulum 12, now, the first Hall
The output level of sensor 2 is low level.When the N poles that I-shaped permanent magnetism puts 12, which are close to yoke D, S poles, is close to yoke C,
It is exactly, when magnetic latching relay 1 is off, because the N of I-shaped permanent magnetism pendulum 12 is extremely close to the first Hall sensor
2 so that the first Hall sensor 2 is able to detect that the magnetic field of I-shaped permanent magnetism pendulum 12, now, the first Hall sensor 2 it is defeated
Go out level for high level.The output level of first Hall sensor 2, passes through the company between the first Hall sensor 2 and controller 3
Connect, input to controller 3, thus controller 3 can judge magnetic latching relay by the output level of the first Hall sensor 2
Whether 1 be in connected state.Now, when the output level that controller 3 detects the first Hall sensor 2 is low level, control
Device 3 processed can interpolate that out that current magnetic latching relay 1 is in connected state；When controller 3 detects the first Hall sensor 2
When output level is high level, controller 3 can interpolate that out that current magnetic latching relay 1 is off.Controller 3 can
The on off operating mode of magnetic latching relay 1 is uploaded to control main frame.
Magnetic shielding cover 4 is arranged at around the first Hall sensor 2, is disposed on outside the first Hall sensor 2, by height
The housing that magnetoconductivity material is made.The housing is opened in the sticking part of the first Hall sensor 2 and the housing of magnetic latching relay 1
Mouthful.Magnetic shielding cover 4 is used to shield external magnetic field, it is to avoid external magnetic field disturbs the first Hall sensor 2 to magnetic latching relay 1
The detection of on off operating mode.High-permeability material, such as soft iron, silicon steel, permalloy etc..
In the present embodiment, the first Hall sensor 2 puts the yoke C sides of 12 N poles close to I-shaped permanent magnetism.Art technology
Personnel understand that the first Hall sensor 2 can also be disposed in proximity to the yoke D sides of the N poles of I-shaped permanent magnetism pendulum 12, or set
Yoke C sides in the S poles that 12 are put close to I-shaped permanent magnetism, or it is disposed in proximity to the yoke D of the S poles of I-shaped permanent magnetism pendulum 12
Side.
In addition, in the present embodiment, the first Hall sensor 2 uses bipolar Hall sensor, those skilled in the art
Understand, the first Hall sensor 2 can also be using N poles Hall sensor or using S poles Hall sensor, that is, monopole Hall
Sensor.But it should be noted that N poles Hall sensor should be arranged at the S poles side of I-shaped permanent magnetism pendulum 12, S poles Hall
Sensor should then be arranged at the N poles side of I-shaped permanent magnetism pendulum 12.
In addition, in the present embodiment, magnetic latching relay 1 uses a kind of outsourcing piece, moving contact, static contact, U-shaped electromagnetism
Iron 11 and I-shaped permanent magnetism pendulum 12 are wrapped within the housing of closing.Magnetic latching relay 1, the first Hall sensor 2, controller
3 and magnetic shielding cover 4 be installed on same circuit board.Those skilled in the art, moving contact, the stationary contact of magnetic latching relay 1
Head, U-shaped electromagnet 11 and I-shaped permanent magnetism pendulum 12 can not also be wrapped within the housing of closing, but with the first hall sensing
Device 2, controller 3 and magnetic shielding cover 4 are enclosed within same housing jointly.
Embodiment 2
The present embodiment is based on embodiment 1.Different from embodiment 1, as shown in figure 3, the present embodiment is on the basis of embodiment 1
Add the second Hall sensor 5.Second Hall sensor 5 is set away from magnetic latching relay 1, and connects controller 3.Second
Hall sensor 5 is away from magnetic latching relay 1 so that the second Hall sensor 5 can not detect the I-shaped of magnetic latching relay 1
Magnetic field produced by shape permanent magnetism pendulum 12.Second Hall sensor 5 generally has multiple, and multiple second Hall sensors 5 are protected around magnetic
The Hall sensor 2 of relay 1 or first is held to set.Controller 3 is used to sentence by the height of the output level of the second Hall sensor 5
It is disconnected to whether there is magnetic interference, when the output level that controller 3 receives the second Hall sensor 5 is low level, then judge
In the absence of magnetic interference；When the output level that controller 3 receives the second Hall sensor 5 is high level, then controller 3 is sentenced
Disconnected have a magnetic interference, and there will be the information of magnetic interference information is uploaded to control main frame by way of caution.
Embodiment 3
The present embodiment is based on embodiment 1.Different from embodiment 1, as shown in figure 4, first Hall sensor 2 of the present embodiment
It is made up of 22 two Hall sensors of Hall sensor 21 and Hall sensor.Wherein, Hall sensor 21 is located at close to work
The yoke C sides of the N poles of font permanent magnetism pendulum 12, Hall sensor 22 is located at the yoke D sides for the N poles that 12 are put close to I-shaped permanent magnetism.
Hall sensor 21 and Hall sensor 22 are all connected with controller 3.When controller 3 detects the output level of Hall sensor 21
It is high level for the output level of low level and Hall sensor 22, then judges magnetic latching relay 1 for connected state；Work as control
The output level that device 3 processed detects Hall sensor 21 is that the output level of high level and Hall sensor 22 is low level,
Then judge magnetic latching relay 1 for off-state；When controller 3 detects the output of Hall sensor 21 and Hall sensor 22
When level is low level, then judge that magnetic latching relay 1 is in abnormality；When controller 3 detects Hall sensor 21
When output level with Hall sensor 22 is high level, then judge there is magnetic interference.Kept when controller 3 detects magnetic
Relay 1 is in abnormality or when there is magnetic interference, then by the abnormality of magnetic latching relay 1 and there is magnetic field and do
Information is uploaded to control main frame to the information disturbed by way of caution.
Embodiment 4
The present embodiment is based on embodiment 1.Different from embodiment 1, as shown in figure 5, first Hall sensor 2 of the present embodiment
It is made up of 22 two Hall sensors of Hall sensor 21 and Hall sensor.Wherein, Hall sensor 21 is located at close to work
The yoke C sides of the N poles of font permanent magnetism pendulum 12, Hall sensor 22 is located at the yoke C sides for the S poles that 12 are put close to I-shaped permanent magnetism.
Hall sensor 21 and Hall sensor 22 are all connected with controller 3.When controller 3 detects the output level of Hall sensor 21
It is high level for the output level of low level and Hall sensor 22, then judges magnetic latching relay 1 for connected state；Work as control
The output level that device 3 processed detects Hall sensor 21 is that the output level of high level and Hall sensor 22 is low level,
Then judge magnetic latching relay 1 for off-state；When controller 3 detects the output of Hall sensor 21 and Hall sensor 22
When level is low level, then judge that magnetic latching relay 1 is in abnormality；When controller 3 detects Hall sensor 21
When output level with Hall sensor 22 is high level, then judge there is magnetic interference.Kept when controller 3 detects magnetic
Relay 1 is in abnormality or when there is magnetic interference, then by the abnormality of magnetic latching relay 1 and there is magnetic field and do
Information is uploaded to control main frame to the information disturbed by way of caution.
In addition, it is necessary to which, it is noted that two Hall sensors in embodiment 3 and embodiment 4 can be two N poles Halls
Sensor, is either two S poles Hall sensors or is a N poles Hall sensor and a S poles Hall sensor, or
Person is two full pole Hall sensors, or is two bipolar Hall sensors.
In addition it is also necessary to, it is noted that the first Hall sensor, the second Hall sensor involved by the various embodiments described above
What is used is Hall switch sensor, and is to export high level when being able to detect that magnetic field, when can't detect magnetic field
When export low level Hall switch sensor.It will be appreciated by those skilled in the art that Hall switch sensor can also be worked as
Low level being exported when being able to detect that magnetic field, the Hall switch sensor of high level is exported when can't detect magnetic field.Ability
Field technique personnel understand that the first Hall sensor, the second Hall sensor can also be passed using the Hall of locking key type or lienar for
Sensor.Its principle be all when being changed according to magnetic latching relay connected state and causing the permanent magnetic field to change first suddenly
You are able to detect that corresponding changes of magnetic field by sensor, the changes of magnetic field that then controller is detected according to the first Hall sensor
Judge whether magnetic latching relay connects.
Finally it is pointed out that in the various embodiments described above, the switching that magnetic latching relay 1 completes connected state is usual
The regular hour is needed, magnetic latching relay 1 switches to off-state, Huo Zhecong under being controlled by controller 3 from connected state
Off-state switches to connected state, and its magnetic field has larger fluctuation, therefore, and now controller 3 does not detect magnetic latching relay 1
Connected state.In addition, magnetic latching relay 1 switches to off-state, Huo Zhecong under being controlled by controller 3 from connected state
Off-state was switched in a period of time after connected state, was existed in the coil of the U-shaped electromagnet 11 in magnetic latching relay 1
The induced-current fluctuation of residual, causes the induced field that there are larger fluctuation, therefore during this period of time, and controller 3 is not yet
Detect the connected state of magnetic latching relay 1.The length of this period is usually 100ms ~ 400ms.That is, controller 3
After 100ms ~ 400ms is waited again after magnetic latching relay 1 completes the switching of connected state, just start to detect magnetic latching relay
1 connected state, in other words, stops in 100ms ~ 400ms when controller 3 switches between connection and off-state and after switching
Only detect the connected state of magnetic latching relay 1.
Claims (10)
1. the device that a kind of magnetic latching relay is detected without auxiliary contact break-make, it is characterised in that including magnetic latching relay,
One Hall sensor and controller；First Hall sensor is close to the magnetic latching relay and set so that when the magnetic
First Hall sensor described in when guard relay connected state changes and causes the permanent magnetic field to change can be detected
To corresponding changes of magnetic field；The controller connects the magnetic latching relay and the first Hall sensor, and for controlling institute
Magnetic latching relay is stated between connection and off-state switch, and for being detected by first Hall sensor
Changes of magnetic field judges the on off operating mode residing for the magnetic latching relay.
2. the device that magnetic latching relay as claimed in claim 1 is detected without auxiliary contact break-make, it is characterised in that the device
Also include the second Hall sensor；Second Hall sensor connects the controller, and away from the magnetic latching relay,
So that when the magnetic latching relay connected state change and when causing permanent magnetic field to change described in the second Hall pass
Sensor can not detect corresponding changes of magnetic field；The controller is additionally operable to the magnetic detected by second Hall sensor
Field judges whether magnetic interference.
3. the device that magnetic latching relay as claimed in claim 1 is detected without auxiliary contact break-make, it is characterised in that described
Magnetic shielding cover is additionally provided with around one Hall sensor.
4. the device that magnetic latching relay as claimed in claim 1 is detected without auxiliary contact break-make, it is characterised in that described
One Hall sensor is either monopole Hall sensor or is bipolar Hall sensor, or is full pole Hall sensor.
5. the device that magnetic latching relay as claimed in claim 1 is detected without auxiliary contact break-make, it is characterised in that described
One Hall sensor is made up of two different Hall sensors in position；The controller passes through first Hall sensor
The relay connected state that is judged of two Hall sensors whether unanimously judge whether magnetic interference.
6. the device that magnetic latching relay as claimed in claim 5 is detected without auxiliary contact break-make, it is characterised in that described
Two Hall sensors of one Hall sensor are either two N poles Hall sensors or are two S poles Hall sensors,
It is either a N poles Hall sensor and a S poles Hall sensor or is two full pole Hall sensors, or is two
Individual bipolar Hall sensor.
7. a kind of method that magnetic latching relay is detected without auxiliary contact break-make, it is characterised in that this method is related to controller, magnetic
Guard relay and the first Hall sensor；In this method, controller is by being close to the first Hall of the magnetic latching relay
The changes of magnetic field that sensor is detected judges the break-make of the magnetic latching relay.
8. the method that magnetic latching relay as claimed in claim 7 is detected without auxiliary contact break-make, it is characterised in that this method
Further relate to the second Hall sensor away from the magnetic latching relay；In this method, controller also passes through second Hall
The magnetic field that sensor is detected judges whether magnetic interference.
9. the method that magnetic latching relay as claimed in claim 7 is detected without auxiliary contact break-make, it is characterised in that described
One Hall sensor is made up of two different Hall sensors in position；In this method, controller also by described first suddenly
Whether the relay connected state that two Hall sensors of your sensor are judged unanimously judges whether magnetic interference.
10. the method that magnetic latching relay as claimed in claim 7 is detected without auxiliary contact break-make, it is characterised in that work as control
In a period of time when the device control processed magnetic latching relay switches between connection and off-state and after switching, controller
Stop the break-make of the detection magnetic latching relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710621964.1A CN107290659A (en) | 2017-07-27 | 2017-07-27 | The apparatus and method that a kind of magnetic latching relay is detected without auxiliary contact break-make |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710621964.1A CN107290659A (en) | 2017-07-27 | 2017-07-27 | The apparatus and method that a kind of magnetic latching relay is detected without auxiliary contact break-make |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107290659A true CN107290659A (en) | 2017-10-24 |
Family
ID=60103257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710621964.1A Pending CN107290659A (en) | 2017-07-27 | 2017-07-27 | The apparatus and method that a kind of magnetic latching relay is detected without auxiliary contact break-make |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008292A (en) * | 2017-11-27 | 2018-05-08 | 上海航天测控通信研究所 | A kind of magnetic latching relay ageing detection automatics and automatic testing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830348A (en) * | 2012-08-21 | 2012-12-19 | 江苏华德电力科技有限公司 | Bounce testing device for single-coil magnetic-latching relay and test method of bounce testing device |
| CN204927193U (en) * | 2015-08-31 | 2015-12-30 | 河南瑞特电气有限公司 | Take position feedback's magnetic latching relay |
| CN106019137A (en) * | 2016-07-19 | 2016-10-12 | 南宏电力科技有限公司 | Switch state detecting circuit of protective relaying device |
| CN106887364A (en) * | 2017-03-06 | 2017-06-23 | 四川大能科技有限公司 | A kind of electromagnetic relay with adhesive effect detection function |
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2017
- 2017-07-27 CN CN201710621964.1A patent/CN107290659A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830348A (en) * | 2012-08-21 | 2012-12-19 | 江苏华德电力科技有限公司 | Bounce testing device for single-coil magnetic-latching relay and test method of bounce testing device |
| CN204927193U (en) * | 2015-08-31 | 2015-12-30 | 河南瑞特电气有限公司 | Take position feedback's magnetic latching relay |
| CN106019137A (en) * | 2016-07-19 | 2016-10-12 | 南宏电力科技有限公司 | Switch state detecting circuit of protective relaying device |
| CN106887364A (en) * | 2017-03-06 | 2017-06-23 | 四川大能科技有限公司 | A kind of electromagnetic relay with adhesive effect detection function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008292A (en) * | 2017-11-27 | 2018-05-08 | 上海航天测控通信研究所 | A kind of magnetic latching relay ageing detection automatics and automatic testing method |
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Application publication date: 20171024 |