CN106887364A - A kind of electromagnetic relay with adhesive effect detection function - Google Patents
A kind of electromagnetic relay with adhesive effect detection function Download PDFInfo
- Publication number
- CN106887364A CN106887364A CN201710129778.6A CN201710129778A CN106887364A CN 106887364 A CN106887364 A CN 106887364A CN 201710129778 A CN201710129778 A CN 201710129778A CN 106887364 A CN106887364 A CN 106887364A
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- CN
- China
- Prior art keywords
- electromagnetic relay
- magnet stand
- iron core
- magnetic field
- hall sensor
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/08—Indicators; Distinguishing marks
-
- 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
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The invention discloses a kind of electromagnetic relay with adhesive effect detection function, the Hall sensor formed when electromagnetic relay works in magnetic field space is placed in by one, to magnet stand outside magnetic field detect.When being brought into close contact due to iron core and magnet stand, magnetic field outside magnet stand can significantly reduce, so, by the detection in the magnetic field outside to magnet stand, may determine that whether iron core is brought into close contact with magnet stand, i.e., the adhesive effect of electromagnetic relay can be obtained directly by the output signal of Hall sensor：If Hall sensor detects threshold value of the magnetic field more than setting, then think that the iron core and magnet stand of electromagnetic relay are not fitted completely, adhesive effect does not reach requirement, if Hall sensor detects threshold value of the magnetic field less than or equal to setting, then think that the iron core and magnet stand of electromagnetic relay are fitted completely, adhesive effect reaches and requires.So, the unreliable failure of contact that electromagnetic relay is present can be in time found, the reliability of electromagnetic relay application system is improved.
Description
Technical field
The invention belongs to electromagnetic relay technical field, more specifically, it is related to a kind of with adhesive effect detection work(
The electromagnetic relay of energy.
Background technology
Electromagnetic relay control is simple, and simple structure plays in all kinds of power stations, factory power control system and weighs very much
The role for wanting.Electromagnetic relay is commonly used to control the break-make of circuit system, and the effect of switch is served as in circuit system.
The overcurrent capability of electromagnetic relay is one of its most important index, and the contact force between contact directly affects electricity
The overcurrent capability of magnetic relay, and electromagnetic relay reliability.As shown in figure 1, when electric current by electromagnetic relay with
Afterwards, in Fig. 1 (a) iron core (also referred to as magnetic core) can (right side) acts forward under the influence of a magnetic field, until iron core is touched completely
Shown in magnet stand, such as Fig. 1 (b), now, the contact of contact is in close contact completely with the contact on input and output pin on iron core, electricity
Turned between magnetic relay input and output pin.
Due to the self character of electromagnetic relay, when iron core fits magnet stand, the suction that magnet stand is provided iron core is most
Greatly.In complicated applied environment, magnetic core is probably due to abrasion, collide with or other reasonses can not fit magnet stand completely.At this moment
Magnet stand drastically declines to the suction of iron core, and then causes between contact i.e. on iron core on the contact of contact and input and output pin
Contact force between contact declines, so as to influence its overcurrent performance.So for electromagnetic type relay, whether magnetic core is complete
Full laminating magnet stand can directly affect the overcurrent performance of electromagnetic relay.
In existing electromagnetic relay, some detect whether electromagnetism execution acts what is completed and complete without sensor
Effect.As shown in Fig. 2 after the electromagnetic relay adhesive, electromagnetic relay is it is possible that situation shown in Fig. 2 (b), electromagnetism
Relay iron does not have fits (having space) with magnet stand completely, and at this moment the suction between iron core and magnet stand is completeer than iron core and magnet stand
Suction is much smaller during full adhesive, and when the system of application electromagnetic relay has vibration, the contact of adhesive is easily separated, so as to make
Into the reduction of whole system reliability.
In existing electromagnetic relay, other is by photo-electric feeler (a) or mechanical as shown in Figure 3
Feeler (b) detects whether iron core reaches predetermined movement position.These sensors are not that direct detection electromagnetism is held
The adhesive effect of row device, but by allowing iron core to sensor is touched behind precalculated position, produce a switching signal amount to examine
Whether the moving component (iron core) for surveying electromagnetic actuator reaches precalculated position.Due to magnetic core and magnet stand must fit completely magnetic core and
Suction between magnet stand just can be maximum, and this mode can only detect whether electromagnetic relay magnetic core generates displacement, can not
Reflect electromagnetic relay iron core and whether magnet stand tightly fits.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of electromagnetism with adhesive effect detection function
Relay, to detect whether iron core tightly fits with magnet stand, so as to detect the contact of contact and input and output pin on iron core
On contact whether the adhesive effect of reliable contacts to be more direct detection go out electromagnetic relay, find that electromagnetic relay is present in time
The unreliable failure of contact, improve electromagnetic relay application system reliability.
For achieving the above object, electromagnetic relay of the present invention with adhesive effect detection function, it is characterised in that
Also include：
One Hall sensor, in the magnetic field space outside formed when being worked positioned at electromagnetic relay, magnet stand, when electromagnetism relay
When device works and promotes iron core to be fitted with magnet stand, if Hall sensor detects threshold value of the magnetic field more than setting, then it is assumed that electricity
The iron core and magnet stand of magnetic relay are not fitted completely, and adhesive effect does not reach requirement, if Hall sensor detects magnetic field
Less than or equal to the threshold value of setting, then it is assumed that the iron core and magnet stand of electromagnetic relay are fitted completely, adhesive effect reaches and requires.
The object of the present invention is achieved like this.
Electromagnetic relay of the present invention with adhesive effect detection function, shape when electromagnetic relay works is placed in by one
Into the Hall sensor in magnetic field space, to magnet stand outside magnetic field detect.When being brought into close contact due to iron core and magnet stand, magnet stand
Whether outer magnetic field can significantly reduce, so, by the detection in the magnetic field outside to magnet stand, it can be determined that go out iron core tight with magnet stand
The adhesive effect of closely connected conjunction, i.e. electromagnetic relay can be obtained directly by the output signal of Hall sensor：If Hall is passed
Sensor detects threshold value of the magnetic field more than setting, then it is assumed that the iron core and magnet stand of electromagnetic relay are not fitted completely, adhesive effect
Fruit does not reach requirement, if Hall sensor detects threshold value of the magnetic field less than or equal to setting, then it is assumed that the iron of electromagnetic relay
Core and magnet stand are fitted completely, and adhesive effect reaches and requires.So, the unreliable event of contact that electromagnetic relay is present can in time be found
Barrier, improves the reliability of electromagnetic relay application system.
Brief description of the drawings
Fig. 1 is the structural representation of existing electromagnetic relay, wherein, (a) is for before adhesive, (b) is for after adhesive；
Fig. 2 is the structural representation of the electromagnetic relay of existing not belt sensor, wherein, (a) is the good situation of adhesive,
B () is the bad situation of adhesive；
Fig. 3 is the structural representation of the electromagnetic relay of existing belt sensor, wherein, (a) is band photo-electric sensing contact
Device, (b) is band mechanical type contact sensor；
Fig. 4 is a kind of electromagnetic relay specific embodiment structural representation of the present invention with adhesive effect detection function
Figure, wherein, structural representation when (a) is the non-adhesive of iron core and magnet stand, equivalent model when (b) is iron core non-with magnet stand adhesive
Schematic diagram；
Structural representation when Fig. 5 is the electromagnetic relay adhesive with adhesive effect detection function shown in Fig. 4, wherein,
Structural representation when () is iron core and magnet stand adhesive a, equivalent model schematic diagram when (b) is iron core and magnet stand adhesive；
Fig. 6 is structure when having the electromagnetic relay adhesive of adhesive effect detection function shown in Fig. 4 but not fitting completely
Schematic diagram, wherein, (a) is iron core and magnet stand adhesive but structural representation when fit completely, and (b) is iron core and magnet stand suction
Equivalent model schematic diagram when closing but not fitting completely；
Fig. 7 is the magnetic field intensity that detects of Hall sensor with graph of relation between magnetic core and the distance of magnet stand.
Specific embodiment
Specific embodiment of the invention is described below in conjunction with the accompanying drawings, so as to those skilled in the art preferably
Understand the present invention.Requiring particular attention is that, in the following description, when known function and design detailed description perhaps
When can desalinate main contents of the invention, these descriptions will be ignored herein.
In the present embodiment, as shown in figure (a) in Fig. 4, electromagnetic relay of the present invention with adhesive effect detection function
Also include Hall sensor 1, it is located in the magnetic field space outside formed when electromagnetic relay works, magnet stand.In the present embodiment
In, such as shown in Fig. 4 (a), between described Hall sensor 1 fits magnet stand 202 with iron core positioned at the outer magnet stand 201 of iron core (magnetic core)
Gap, the outer magnet stand 201 of iron core (magnetic core) magnet stand 202 of being fitted with iron core is structure as a whole and link together, in addition to space,
Constitute a loop.The gap magnetic field intensity is maximum, and change is maximum, i.e. the sensitivity highest of magnetic field detection.
As shown in Fig. 4 (a), after electromagnetic relay energization, its coil 3 converts electric energy to electromagnetic energy, is placed in magnetic field
The iron core 4 in space can convert electromagnetic energy into mechanical energy, and complete corresponding actions：The magnet stand 202 of being fitted with iron core of iron core 3 is promoted to paste
Close.One Hall sensor (linear hall sensor or other Hall sensors) of placement in magnetic field space, so, such as Fig. 4
Shown, when electromagnetic relay is powered, magnetic core 4 is not moved to also when 202 bonding position of magnet stand is fitted with iron core, electromagnetic relay etc.
Shown in effect model such as Fig. 4 (b), Hall sensor position magnetic field intensity is very high, and this can be detected by Hall sensor
The magnetic field intensity of position.
As shown in figure 5, when the complete adhesive of electromagnetic relay, electromagnetic relay is equivalent to the structure such as Fig. 5 (b), magnetic field
All passed through from magnet stand 201,202, the position of Hall sensor 1 only has very weak magnetic field intensity.As shown in fig. 6, working as the He of magnetic core 4
Do not fitted completely between iron core laminating magnet stand 202, only some magnetic field has passed through magnet stand 201,202, in Hall sensor 1
Position also has stronger magnetic field.So, as long as shown in fig. 7, the magnetic field of Hall sensor position 1 be more than certain threshold value, just
Illustrate that magnetic core and iron core the laminating magnet stand 202 of electromagnetic relay are not fitted completely.Because magnetic core and iron core laminating magnet stand 202 are
No laminating completely can directly affect the magnetic field size of sensing station, therefore the adhesive effect of the electromagnetic relay can directly lead to
The output signal for crossing Hall sensor draws.
It is of the invention not only to detect iron core and move in place compared with the electromagnetic relay of traditional belt sensor, Er Qieke
To detect whether it tightly fits, the effect of adhesive can be so detected, the contact of electromagnetic relay presence is found in time not
Reliable fault, improves the reliability of electromagnetic relay application system.
Although being described to illustrative specific embodiment of the invention above, in order to the technology of the art
Personnel understand the present invention, it should be apparent that the invention is not restricted to the scope of specific embodiment, to the common skill of the art
For art personnel, as long as various change is in appended claim restriction and the spirit and scope of the present invention for determining, these
Change is it will be apparent that all utilize the innovation and creation of present inventive concept in the row of protection.
Claims (2)
1. a kind of electromagnetic relay with adhesive effect detection function, it is characterised in that also include：
One Hall sensor, in the magnetic field space outside formed when being worked positioned at electromagnetic relay, magnet stand, when electromagnetic relay work
When making and promote iron core to be fitted with magnet stand, if Hall sensor detect magnetic field more than setting threshold value, then it is assumed that electromagnetism after
The iron core and magnet stand of electrical equipment are not fitted completely, and adhesive effect does not reach requirement, if Hall sensor detects magnetic field and is less than
Equal to the threshold value of setting, then it is assumed that the iron core and magnet stand of electromagnetic relay are fitted completely, adhesive effect reaches and requires.
2. electromagnetic relay according to claim 1, it is characterised in that the Hall sensor is located at iron core (magnetic core) outward
The gap that magnet stand is fitted between magnet stand with iron core, iron core (magnetic core) outer magnet stand is structure as a whole with iron core laminating magnet stand and be connected
Together, in addition to space, a loop is constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710129778.6A CN106887364A (en) | 2017-03-06 | 2017-03-06 | A kind of electromagnetic relay with adhesive effect detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710129778.6A CN106887364A (en) | 2017-03-06 | 2017-03-06 | A kind of electromagnetic relay with adhesive effect detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106887364A true CN106887364A (en) | 2017-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710129778.6A Pending CN106887364A (en) | 2017-03-06 | 2017-03-06 | A kind of electromagnetic relay with adhesive effect detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106887364A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290659A (en) * | 2017-07-27 | 2017-10-24 | 南京天溯自动化控制系统有限公司 | The apparatus and method that a kind of magnetic latching relay is detected without auxiliary contact break-make |
| KR20190037656A (en) * | 2017-09-29 | 2019-04-08 | 주식회사 엘지화학 | Apparatus and method for diagnosis relay welding |
| CN113359020A (en) * | 2021-06-18 | 2021-09-07 | 江阴市懿泓电气有限公司 | Automatic monitoring device for working parameters of circuit breaker |
| CN113406420A (en) * | 2021-06-18 | 2021-09-17 | 江阴市懿泓电气有限公司 | Electromagnet dynamic characteristic detection device |
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| CN1851391A (en) * | 2006-05-30 | 2006-10-25 | 王洋 | Iron-thickness measuring instrument |
| CN101893691A (en) * | 2010-06-18 | 2010-11-24 | 上海纳杰电气成套有限公司 | Forward power transformer iron core magnetic bias online detection method |
| CN203537205U (en) * | 2013-10-11 | 2014-04-09 | 睿能机电有限公司 | Brushless DC motor magnetic structure and permanent magnet embedded rotor thereof |
| CN104458892A (en) * | 2014-12-08 | 2015-03-25 | 厦门大学 | Defect detecting device for steel profile |
-
2017
- 2017-03-06 CN CN201710129778.6A patent/CN106887364A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1851391A (en) * | 2006-05-30 | 2006-10-25 | 王洋 | Iron-thickness measuring instrument |
| CN101893691A (en) * | 2010-06-18 | 2010-11-24 | 上海纳杰电气成套有限公司 | Forward power transformer iron core magnetic bias online detection method |
| CN203537205U (en) * | 2013-10-11 | 2014-04-09 | 睿能机电有限公司 | Brushless DC motor magnetic structure and permanent magnet embedded rotor thereof |
| CN104458892A (en) * | 2014-12-08 | 2015-03-25 | 厦门大学 | Defect detecting device for steel profile |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290659A (en) * | 2017-07-27 | 2017-10-24 | 南京天溯自动化控制系统有限公司 | The apparatus and method that a kind of magnetic latching relay is detected without auxiliary contact break-make |
| KR20190037656A (en) * | 2017-09-29 | 2019-04-08 | 주식회사 엘지화학 | Apparatus and method for diagnosis relay welding |
| KR102400295B1 (en) | 2017-09-29 | 2022-05-19 | 주식회사 엘지에너지솔루션 | Apparatus and method for diagnosis relay welding |
| CN113359020A (en) * | 2021-06-18 | 2021-09-07 | 江阴市懿泓电气有限公司 | Automatic monitoring device for working parameters of circuit breaker |
| CN113406420A (en) * | 2021-06-18 | 2021-09-17 | 江阴市懿泓电气有限公司 | Electromagnet dynamic characteristic detection device |
| CN113359020B (en) * | 2021-06-18 | 2023-12-22 | 江阴市懿泓电气有限公司 | Automatic monitoring device for working parameters of circuit breaker |
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| 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: 20170623 |