CN110391554A - A kind of intelligent socket that can monitor contact impedance - Google Patents
A kind of intelligent socket that can monitor contact impedance Download PDFInfo
- Publication number
- CN110391554A CN110391554A CN201810366588.0A CN201810366588A CN110391554A CN 110391554 A CN110391554 A CN 110391554A CN 201810366588 A CN201810366588 A CN 201810366588A CN 110391554 A CN110391554 A CN 110391554A
- Authority
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- China
- Prior art keywords
- socket
- current transformer
- contact
- subsidiary loop
- main power
- 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
- 238000012806 monitoring device Methods 0.000 claims abstract description 24
- 230000003068 static effect Effects 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 description 11
- 238000012544 monitoring process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6691—Structural association with built-in electrical component with built-in electronic circuit with built-in signalling means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
- H01R13/713—Structural association with built-in electrical component with built-in switch the switch being a safety switch
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses one kind can monitor the intelligent socket of contact impedance, includes jack body, socket panel, it is characterised in that subsidiary loop in parallel on the main power circuit of intelligent socket；The subsidiary loop includes subsidiary loop conducting wire, subsidiary loop contact, contact tie point two, current transformer group one, measuring resistance；The main power circuit of intelligent socket includes socket firewire inlet wire, socket inlet wire tie point, contact tie point one, plug, socket static contact and current transformer group two；When being powered on, monitoring device acquires the secondary current in current transformer one and current transformer two, calculates the electric current I ' of subsidiary loop and the electric current I of main power circuit.Further according to the resistance value R of measuring resistance, subsidiary loop pressure drop △ U=I ' R ' is calculated.Because main power circuit is in parallel with secondary major loop, △ U is main power circuit pressure drop.In conjunction with the electric current I of main power circuit, contact impedance R=△ U/(I-I ' of main power circuit is further calculated out).
Description
Technical field
The present invention relates to a kind of intelligent socket, specifically a kind of intelligent socket that can monitor contact impedance.
Background technique
When being powered on, with socket due to contacting for a long time, contact point can generate heat plug because contact impedance increases, when
Between it is long can burn socket, high-power socket (such as air-conditioning, washing machine, space heater, electric heater socket) is particularly evident, inserts
If there are inflammable articles on seat side, it is easier to cause fire.
Current stage does not have the technological means of monitoring socket impedance, therefore, it is necessary to it is a kind of implement it is relatively easy, and can be right
The intelligent socket that the trend of abnormal heating is prejudged.
Summary of the invention
To solve the above-mentioned problems, the invention discloses the intelligent sockets that one kind can monitor contact impedance, include socket
Ontology, socket panel, it is characterised in that subsidiary loop in parallel on the main power circuit of intelligent socket；The subsidiary loop includes auxiliary
Help return wire, subsidiary loop contact, contact tie point two, current transformer group one, measuring resistance；The intelligent socket master is logical
Electrical circuit includes socket firewire inlet wire, socket inlet wire tie point, contact tie point one, plug, socket static contact and Current Mutual Inductance
Device group two；The current transformer group one, measuring resistance, subsidiary loop contact are connected to subsidiary loop by subsidiary loop conducting wire
On；The current transformer group one is mounted on subsidiary loop；The current transformer group two is mounted on main power circuit；Institute
State current transformer group one, the secondary circuit of current transformer group two is electrically connected with monitoring device；Report is provided on the panel
Alarm device；The warning device is electrically connected with monitoring device.
Current transformer group one can be the current transformer of one or more different measurement ranges, current transformer group two
It is also possible to the current transformer of one or more different measurement ranges.
Measuring resistance in subsidiary loop can be the resistance an of fixed resistance value or the resistance string of multiple fixed resistance values, simultaneously
The combination of connection.
Monitoring device has data transport functions, transmits data using wired or wireless mode.
When intelligent socket contact impedance is excessively high, warning device is alerted by modes such as sound or indicator lights.
When being powered on, the secondary circuit of current transformer group one and current transformer group two is connected with monitoring device,
Measure the electric current I ' of subsidiary loop and the electric current I of main power circuit respectively, monitoring device is according to the electric current I ' and mark of subsidiary loop
The resistance value R ' of quasi- resistance calculates subsidiary loop pressure drop △ U=I ' R ', since main power circuit and subsidiary loop are parallel circuits,
So the pressure drop of main power circuit is the pressure drop △ U for being main power circuit, the main power circuit part in parallel with subsidiary loop
Electric current is I, further calculates out contact impedance R=△ U/(I-I ' of main power circuit) and heating power P=(I-I ')2R。
The realization principle that one kind disclosed by the invention can monitor the intelligent socket of contact impedance is suitable for any structure
Socket can be two-phase or three-phase socket, be also possible to one or more plate connectors.
Advantages of the present invention: the contact impedance by measuring plug and socket static contact can become according to the variation of electric current
Gesture obtains the variation tendency of the heating power due to caused by contact impedance, and user can decide whether to need to safeguard in advance, eliminates
Security risk, the invention provide a kind of technological means for the monitoring of female contact impedance.
Detailed description of the invention
Fig. 1 intelligent socket schematic diagram；
One intelligent socket panel figure of Fig. 2 embodiment；
One system diagram of Fig. 3 embodiment；
Two intelligent socket panel figure of Fig. 4 embodiment；
Fig. 5 embodiment two system figure.
Description of symbols:
1- socket firewire inlet wire；2- socket inlet wire tie point；3- socket static contact；31- contact tie point one；4- plug；5- is inserted
Head ontology；7- subsidiary loop contact；8- current transformer group one；9- subsidiary loop conducting wire；10- measuring resistance；The connection of 11- contact
Point two；12- current transformer group two；13- monitoring device；14- warning device；15- socket panel.
Specific embodiment
Embodiment one:
A kind of intelligent socket that can monitor contact impedance, comprising jack body 5, socket panel 15, on main power circuit simultaneously
Subsidiary loop is joined, subsidiary loop includes subsidiary loop conducting wire 9, subsidiary loop contact 7, contact tie point 2 11, Current Mutual Inductance
Device group 1, measuring resistance 10；The main power circuit of intelligent socket includes socket firewire inlet wire 1, socket inlet wire tie point 2, contact company
Contact 1, plug 4, socket static contact 3 and current transformer group 2 12；Current transformer group 1, measuring resistance 10, auxiliary
Circuit contact 7 is connected on subsidiary loop by subsidiary loop conducting wire 9；Current transformer group 1 is mounted on subsidiary loop, electricity
Current transformer group 2 12 is mounted on main power circuit；Current transformer group 1, current transformer group 2 12 secondary circuit with
Monitoring device 13 is electrically connected.
It is specific: referring to FIG. 1, FIG. 2 and FIG. 3, to increase a subsidiary loop contact 7, subsidiary loop touching in intelligent socket
First 7 are connected with subsidiary loop conducting wire 9, concatenate measuring resistance 10 after, by the other end be attempted by the socket on main power circuit into
The position of line connection point 2 constitutes required subsidiary loop.
Further, it after plug 4 is inserted into jack body 5, is contacted respectively with subsidiary loop contact 7, socket static contact 3, it is main
Power circuit, subsidiary loop are connected together, at this point, subsidiary loop and main power circuit are the circuits of parallel relationship.Due to auxiliary
There is the presence of measuring resistance 10 in circuit, so that flowing through the electric current very little of subsidiary loop, main power circuit will not be had an impact.
Further, when being powered on, electric current passes through contact tie point 1, due to the presence of contact impedance R,
Pressure drop △ U will certainly be generated.
Further, the principle equal using parallel circuit voltage reads the two of current transformer group 1 by monitoring device
Primary current calculates subsidiary loop actual current I ', can calculate the pressure drop of subsidiary loop, this pressure drop is equal to main power circuit
Pressure drop, i.e. △ U=I ' R '.
Further, the secondary current value of the current transformer group 2 12 on main power circuit is read by monitoring device, is counted
Current value I in main power circuit is calculated, the contact position of socket static contact 3 and plug 4 in main power circuit can be calculated and touched
The contact impedance of head tie point 1, i.e. R=△ U/(I-I ').
Further, the contact position contact tie point of socket static contact 3 and plug 4 in main power circuit can also be calculated
One 31 heating power, i.e. P=(I-I ') 2R.
Further, in order to meet measurement demand, when single resistance and power can not meet real requirement, Ke Yitong
It crosses with multiple resistance strings, parallel combination realization.
Further, connect different loads equipment socket, by size of current be it is different, likewise, assisting back
Electric current in road changes also with curent change in main power circuit, also increases because the contact resistance of main power circuit increases
Greatly, in order to meet intelligent socket versatility and monitoring device calculate precision, current transformer group 1 can be one or
The current transformer of multiple and different measurement ranges, current transformer group 2 15 are also possible to one or more different measurement ranges
Current transformer；To guarantee more accurately to calculate contact impedance and heating power.
Further, one 31 contact impedance of intelligent socket contact tie point and heating power that monitoring device will be calculated,
By the variation tendency of heating power, user can decide whether to need to safeguard in advance, eliminate safe hidden trouble.
Further, the monitoring device of intelligent socket has data transport functions, transmits using wired or wireless mode
Data.
Further, the warning device 14 on intelligent socket socket panel 15 can be accused by modes such as sound or indicator lights
It is alert.
Above-described embodiment is the monitoring technology means of intelligent socket firewire contact impedance, it is envisaged that go out, using same
Technological means, so that it may the contact impedance of zero curve is monitored.Due to the main power circuit of firewire and the main power circuit of zero curve
Electric current be consistent, therefore current transformer group can be not provided on the main power circuit of zero curve, individually neutral line current is surveyed
Amount, and can use the same monitoring device and calculated.
Embodiment two:
Because of three-phase intelligent socket zero curve N no current, the monitoring of intelligent socket contact impedance only need to monitor respectively route L1, L2,
Impedance at L3 tie point.
The contact impedance of route L1 contact tie point 1 monitors.
A kind of intelligent socket that can monitor contact impedance includes jack body 5, socket panel 15, in main power circuit
Upper in parallel subsidiary loop, subsidiary loop include subsidiary loop conducting wire 9, subsidiary loop contact 7, contact tie point 2 11, electric current
Mutual inductor group 1, measuring resistance 10；The main power circuit of intelligent socket includes socket firewire inlet wire 1, socket inlet wire tie point 2, touching
Head tie point 1, plug 4, socket static contact 3 and current transformer group 2 12；Current transformer group 1, measuring resistance 10,
Subsidiary loop contact 7 is connected on subsidiary loop by subsidiary loop conducting wire 9；Current transformer group 1 is mounted on subsidiary loop
On, current transformer group 2 12 is mounted on main power circuit；Current transformer group 1, current transformer group 2 12 it is secondary
Circuit is electrically connected with monitoring device 13.
It is specific: referring to Fig.1, Fig. 4 and Fig. 5, to increase a subsidiary loop contact 7, auxiliary in intelligent socket route L1
Circuit contact 7 is connected with subsidiary loop conducting wire 9, and after concatenating measuring resistance 10, the other end is attempted by main power circuit
The position of socket inlet wire tie point 2, constitutes required subsidiary loop.
Further, it after plug 4 is inserted into jack body 5, is contacted respectively with subsidiary loop contact 7, socket static contact 3, it is main
Power circuit, subsidiary loop are connected together, at this point, subsidiary loop and main power circuit are the circuits of parallel relationship.Due to auxiliary
There is the presence of measuring resistance 10 in circuit, so that flowing through the electric current very little of subsidiary loop, main power circuit will not be had an impact.
Further, when being powered on, electric current passes through contact tie point 1, due to the presence of contact impedance R,
Pressure drop △ U will certainly be generated.
Further, the principle equal using parallel circuit voltage reads the two of current transformer group 1 by monitoring device
Primary current calculates subsidiary loop actual current I ', can calculate the pressure drop of subsidiary loop, this pressure drop is equal to main power circuit
Pressure drop, i.e. △ U=I ' R '.
Further, the secondary current value of the current transformer group 2 12 on main power circuit is read by monitoring device, is counted
Current value I in main power circuit is calculated, the contact position of socket static contact 3 and plug 4 in main power circuit can be calculated and touched
The contact impedance of head tie point 1, i.e. R=△ U/(I-I ').
Further, the contact position contact tie point of socket static contact 3 and plug 4 in main power circuit can also be calculated
One 31 heating power, i.e. P=(I-I ') 2R.
Further, in order to meet measurement demand, when single resistance and power can not meet real requirement, Ke Yitong
It crosses with multiple resistance strings, parallel combination realization.
Further, connect different loads equipment socket, by size of current be it is different, likewise, assisting back
Electric current in road changes also with curent change in main power circuit, also increases because the contact resistance of main power circuit increases
Greatly, in order to meet intelligent socket versatility and monitoring device calculate precision, current transformer group 1 can be one or
The current transformer of multiple and different measurement ranges, current transformer group 2 15 are also possible to one or more different measurement ranges
Current transformer；To guarantee more accurately to calculate contact impedance and heating power.
Further, one 31 contact impedance of intelligent socket contact tie point and heating power that monitoring device will be calculated,
By the variation tendency of heating power, user can decide whether to need to safeguard in advance, eliminate safe hidden trouble.
Further, the monitoring device of intelligent socket has data transport functions, transmits using wired or wireless mode
Data.
Further, the warning device 14 on intelligent socket socket panel 15 can be accused by modes such as sound or indicator lights
It is alert.
Above-described embodiment is the technological means of intelligent socket route L1 contact impedance monitoring, it is envisaged that go out, using same
The technological means of sample, so that it may the contact impedance of route L2, route L3 are monitored, and can use the same monitoring device
It is calculated.
Technological means disclosed in this invention is not limited only to technological means disclosed in above embodiment, also comprising utilizing
Embodiment composed by above technology any combination, those skilled in the art should understand that, others are any not to carry on the back
It should be equivalent substitute mode from the modification or equivalent replacement made under Spirit Essence and technological means of the invention, all wrap
Containing within protection scope of the present invention.
Claims (5)
- It include jack body, socket panel, it is characterised in that intelligent socket 1. one kind can monitor the intelligent socket of contact impedance Subsidiary loop in parallel on main power circuit；The subsidiary loop includes subsidiary loop conducting wire, subsidiary loop contact, contact connection Point two, current transformer group one, measuring resistance；The main power circuit of intelligent socket includes socket firewire inlet wire, socket inlet wire Tie point, contact tie point one, plug, socket static contact and current transformer group two；The current transformer group one, measuring resistance, subsidiary loop contact are connected on subsidiary loop by subsidiary loop conducting wire；The current transformer group one is mounted on subsidiary loop；The current transformer group two is mounted on main power circuit；The current transformer group one, current transformer group two secondary circuit be electrically connected with monitoring device；Warning device is provided on the panel；The warning device is electrically connected with monitoring device.
- 2. the intelligent socket that one kind according to claim 1 can monitor contact impedance, it is characterised in that current transformer Group one can be the current transformer of one or more different measurement ranges, and current transformer group two is also possible to one or more The current transformer of different measurement ranges.
- 3. the intelligent socket that one kind according to claim 1 can monitor contact impedance, it is characterised in that in subsidiary loop Measuring resistance can be the combination of the resistance an of fixed resistance value or the resistance series and parallel of multiple fixed resistance values.
- 4. the intelligent socket that one kind according to claim 1 can monitor contact impedance, it is characterised in that monitoring device tool Standby data transport functions, transmit data using wired or wireless mode.
- 5. the intelligent socket that one kind according to claim 1 can monitor contact impedance, it is characterised in that intelligent socket connects When touching impedance is excessively high, warning device is alerted by modes such as sound or indicator lights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810366588.0A CN110391554A (en) | 2018-04-23 | 2018-04-23 | A kind of intelligent socket that can monitor contact impedance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810366588.0A CN110391554A (en) | 2018-04-23 | 2018-04-23 | A kind of intelligent socket that can monitor contact impedance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110391554A true CN110391554A (en) | 2019-10-29 |
Family
ID=68284533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810366588.0A Pending CN110391554A (en) | 2018-04-23 | 2018-04-23 | A kind of intelligent socket that can monitor contact impedance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110391554A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| US5744965A (en) * | 1996-09-17 | 1998-04-28 | Lucent Technologies Inc. | System for continuously monitoring the integrity of an electrical contact connection |
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| CN104111438A (en) * | 2014-07-18 | 2014-10-22 | 河北省电力建设调整试验所 | Primary large-current loop monitoring method in current transformer error test |
| CN104977557A (en) * | 2015-07-08 | 2015-10-14 | 南车青岛四方机车车辆股份有限公司 | Device and method for calibrating contact resistance tester |
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| CN106921090A (en) * | 2017-03-22 | 2017-07-04 | 康体佳智能科技（深圳）有限公司 | A kind of smart jack |
| JP2017212165A (en) * | 2016-05-27 | 2017-11-30 | 日産自動車株式会社 | Connector fitting state detection device |
| CN208336683U (en) * | 2018-04-23 | 2019-01-04 | 金一凡 | A kind of intelligent socket that can monitor contact impedance |
-
2018
- 2018-04-23 CN CN201810366588.0A patent/CN110391554A/en active Pending
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| US5744965A (en) * | 1996-09-17 | 1998-04-28 | Lucent Technologies Inc. | System for continuously monitoring the integrity of an electrical contact connection |
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