CN107294060A - A kind of air purifier earth leakage protective device - Google Patents

A kind of air purifier earth leakage protective device Download PDF

Info

Publication number
CN107294060A
CN107294060A CN201710612624.2A CN201710612624A CN107294060A CN 107294060 A CN107294060 A CN 107294060A CN 201710612624 A CN201710612624 A CN 201710612624A CN 107294060 A CN107294060 A CN 107294060A
Authority
CN
China
Prior art keywords
earth leakage
leakage protective
air purifier
current
zero line
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
Application number
CN201710612624.2A
Other languages
Chinese (zh)
Inventor
张伯清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN BERONI BIOTECHNOLOGY Co Ltd
Original Assignee
TIANJIN BERONI BIOTECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TIANJIN BERONI BIOTECHNOLOGY Co Ltd filed Critical TIANJIN BERONI BIOTECHNOLOGY Co Ltd
Priority to CN201710612624.2A priority Critical patent/CN107294060A/en
Publication of CN107294060A publication Critical patent/CN107294060A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors

Abstract

The present invention proposes a kind of air purifier earth leakage protective device, including:Housing and the leakage current detecting module being arranged in housing, leakage current control module, electrical apparatus release, the leakage current control module includes control chip, multiple relays, the leakage current detecting module uses the first current transformer, the live wire of the power supply, zero line, ground wire is respectively wound around the primary side of first current transformer, the secondary side of first current transformer connects the input of the control chip, the output end of the control chip connects the signal receiving end of the electrical apparatus release, the control output end connection relay of the electrical apparatus release, the relay is connected on the zero line respectively, on live wire and ground wire.The present invention can work independently, and gather precision current, effectively carry out earth leakage protective.

Description

A kind of air purifier earth leakage protective device
Technical field
The present invention relates to electric leakage protection technology field, more particularly to a kind of air purifier earth leakage protective device.
Background technology
Earth leakage protective device is used in electic protection, and when detection is leaked electricity, electrical apparatus release is disconnected, to ensure that user pacifies Entirely.Electric opportunity driven impeller rotation in air purifier, so that promote the circulation of wind, but motor often goes out as load Situation about now leaking electricity, motor electric leakage will cause shell of air purifier powered, and safety is caused to the person, therefore, and the present invention is proposed A kind of earth leakage protective device for air purifier, reduces the unnecessary injury brought to the person.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to propose a kind of air purifier earth leakage protective device, can be independent Work, gathers precision current, effectively carries out earth leakage protective.
The present invention solves the technical scheme that is used of above-mentioned technical problem:A kind of air purifier earth leakage protective device, Include power supply, motor, impeller in the air purifier, the motor is used to drive wheel rotation, and the impeller is used to drive Wind circulation is filtered, the earth leakage protective device is located between the power supply and motor, it is characterised in that the earth leakage protective device Including:Housing and leakage current detecting module, leakage current control module, the electrical apparatus release being arranged in housing, the electric leakage electricity Flow control module includes control chip, multiple relays,
The leakage current detecting module uses the first current transformer, and live wire, zero line, the ground wire of the power supply are twined respectively The primary side of first current transformer is wound on, the secondary side of first current transformer connects the defeated of the control chip Enter end, the output end of the control chip connects the signal receiving end of the electrical apparatus release, and the control output end of the electrical apparatus release connects Contact relay, the relay is connected on the zero line, live wire and ground wire respectively;
The housing includes upper shell, lower house, and the upper shell is fixedly connected with the lower house by screw, described The upper groove passed through for live wire, zero line, ground wire is respectively equipped with the rear and front end of upper shell, the lower house is provided with and upper casing The low groove of the upper groove matching of body, one circular hole of formation together with the matching of the upper groove and low groove, the circular hole it is straight Footpath is more than live wire, zero line, the diameter of ground wire, and the enclosure interior is additionally provided with the fixing for fixing first current transformer Groove.
Further, the zero line, live wire, second current transformer is also each provided with respectively on ground wire, for respectively Detect zero line, live wire, respective current value on ground wire.
Further, the chip model that control chip is used is M54123.
Further, rectification circuit is additionally provided between control chip and electrical apparatus release.
Further, second current transformer is fixedly mounted in the housing, and the live wire, zero line, ground wire are divided equally The primary side for second transformer being arranged on respective circuit is not bypassed first, further around excessively described first transformer once Side, the secondary side of second transformer connects the control chip.
Further, second current transformer, the first current transformer, control chip, electrical apparatus release and relay are before It is fixedly mounted on the enclosure interior successively after.
Further, the housing uses insulating materials.
The advantage of the invention is that:1st, by set housing by the miscellaneous part in the earth leakage protective device and clarifier every Absolutely, earth leakage protective device is arranged to an independent part, prevents the earth leakage protective device and the miscellaneous part in clarifier Between interfere;2nd, by setting the first current transformer and the second current transformer, zero line, live wire and ground are first gathered respectively Respective electric current on line, then gathers the current differential of zero line, live wire and ground wire each other, is set by using this structure again Meter, can collect accurate zero-sequence current, prevent from causing effectively carry out earth leakage protective because gathering current error.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, in describing below Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is structured flowchart of the invention;
Fig. 2 is shell structure schematic diagram of the invention;
Fig. 3 is circuit theory diagrams of the invention.
Wherein:1st, upper shell;2nd, lower house;3rd, circular hole
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ", The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation, With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ", " the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
As shown in Figure 1-Figure 3, power supply, electricity are included in a kind of air purifier earth leakage protective device, the air purifier Machine, impeller, the motor are used to drive wheel rotation, and the impeller is used to drive filtering wind circulation, the earth leakage protective device Between the power supply and motor, it is characterised in that the earth leakage protective device includes:Housing and the leakage being arranged in housing Electric current detection module, leakage current control module, electrical apparatus release, the leakage current control module include control chip, multiple Relay,
The leakage current detecting module uses the first current transformer, and live wire, zero line, the ground wire of the power supply are twined respectively The primary side of first current transformer is wound on, the secondary side of first current transformer connects the defeated of the control chip Enter end, the output end of the control chip connects the signal receiving end of the electrical apparatus release, and the control output end of the electrical apparatus release connects Contact relay, the relay is connected on the zero line, live wire and ground wire respectively;
The housing includes upper shell 1, lower house 2, and the upper shell 1 is fixedly connected with the lower house 2 by screw, The upper groove passed through for live wire, zero line, ground wire is respectively equipped with the rear and front end of the upper shell 1, the lower house 2 is provided with The low groove matched with the upper groove of upper shell 1, the upper groove forms a circular hole 3 together with low groove matching, described The diameter of circular hole 3 is more than live wire, zero line, the diameter of ground wire, and the enclosure interior is additionally provided with mutual for fixing first electric current The fixing slot of sensor.
Further, the zero line, live wire, second current transformer is also each provided with respectively on ground wire, for respectively Detect zero line, live wire, respective current value on ground wire.
Further, the chip model that control chip is used is M54123.
Further, rectification circuit is additionally provided between control chip and electrical apparatus release.
Further, second current transformer is fixedly mounted in the housing, and the live wire, zero line, ground wire are divided equally The primary side for second transformer being arranged on respective circuit is not bypassed first, further around excessively described first transformer once Side, the secondary side of second transformer connects the control chip.
Further, second current transformer, the first current transformer, control chip, electrical apparatus release and relay are before It is fixedly mounted on the enclosure interior successively after.
Further, the housing uses insulating materials.
Working method:First current transformer and the second current transformer gather zero on zero line, live wire and ground wire respectively Sequence electric current, and be delivered in control chip, control chip is calculated and compared, if the zero-sequence current of collection is 0, does not leak Electricity, control chip control electrical apparatus release turns on relay, if any zero-sequence current on live wire, zero line or ground wire is more than 0, Electric leakage, control chip control electrical apparatus release turns off corresponding relay.
A kind of air purifier earth leakage protective device of the present invention, by setting housing by the earth leakage protective device and purification Miscellaneous part isolation in device, an independent part is arranged to by earth leakage protective device, prevents the earth leakage protective device and net Interfered between miscellaneous part in change device;By setting the first current transformer and the second current transformer, first adopt respectively Respective electric current on collection zero line, live wire and ground wire, then gathers the current differential of zero line, live wire and ground wire each other again, leads to Cross using this structure design, accurate zero-sequence current can be collected, preventing from causing because gathering current error can not be effective Carry out earth leakage protective.
Finally it should be noted that:Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations;To the greatest extent The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that:Its according to The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered Row equivalent substitution;And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology The scope of scheme.

Claims (7)

1. include power supply, motor, impeller, the motor in a kind of air purifier earth leakage protective device, the air purifier For driving wheel rotation, the impeller is used to drive filtering wind circulation, and the earth leakage protective device is located at the power supply and electricity Between machine, it is characterised in that the earth leakage protective device includes:Housing and be arranged in housing leakage current detecting module, Leakage current control module, electrical apparatus release, the leakage current control module include control chip, multiple relays,
The leakage current detecting module uses the first current transformer, and live wire, zero line, the ground wire of the power supply are respectively wound around The primary side of first current transformer, the secondary side of first current transformer connects the input of the control chip End, the output end of the control chip connects the signal receiving end of the electrical apparatus release, the control output end connection of the electrical apparatus release Relay, the relay is connected on the zero line, live wire and ground wire respectively;
The housing includes upper shell, lower house, and the upper shell is fixedly connected with the lower house by screw, the upper casing The upper groove passed through for live wire, zero line, ground wire is respectively equipped with the rear and front end of body, the lower house is provided with and upper shell The low groove of upper groove matching, the upper groove forms a circular hole together with low groove matching, and the diameter of the circular hole is big In live wire, zero line, ground wire diameter, the enclosure interior is additionally provided with the fixing slot for fixing first current transformer.
2. a kind of air purifier earth leakage protective device according to claim 1, it is characterised in that the zero line, live wire, Second current transformer is also each provided with ground wire respectively, for detecting zero line, live wire, respective electric current on ground wire respectively Value.
3. a kind of air purifier earth leakage protective device according to claim 1, it is characterised in that what control chip was used Chip model is M54123.
4. a kind of air purifier earth leakage protective device according to claim 1, it is characterised in that control chip is with threading off Rectification circuit is additionally provided between device.
5. a kind of air purifier earth leakage protective device according to claim 2, it is characterised in that second electric current is mutual Sensor is fixedly mounted in the housing, the live wire, zero line, ground wire respectively first bypass be arranged on it is described on respective circuit The primary side of second transformer, further around the primary side of excessively described first transformer, the secondary side connection institute of second transformer State control chip.
6. a kind of air purifier earth leakage protective device according to claim 1, it is characterised in that second electric current is mutual Sensor, the first current transformer, control chip, electrical apparatus release and relay are fixedly mounted in the housing successively from A-P Portion.
7. a kind of air purifier earth leakage protective device according to claim 1, it is characterised in that the housing is using exhausted Edge material.
CN201710612624.2A 2017-07-25 2017-07-25 A kind of air purifier earth leakage protective device Pending CN107294060A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710612624.2A CN107294060A (en) 2017-07-25 2017-07-25 A kind of air purifier earth leakage protective device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710612624.2A CN107294060A (en) 2017-07-25 2017-07-25 A kind of air purifier earth leakage protective device

Publications (1)

Publication Number Publication Date
CN107294060A true CN107294060A (en) 2017-10-24

Family

ID=60103429

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710612624.2A Pending CN107294060A (en) 2017-07-25 2017-07-25 A kind of air purifier earth leakage protective device

Country Status (1)

Country Link
CN (1) CN107294060A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111941542A (en) * 2020-07-23 2020-11-17 盐城鼎恒机械有限公司 Horizontal circular saw mark machine with cable protection function

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2629206Y (en) * 2003-04-16 2004-07-28 黄浙勇 Intelligent plastic shell leakage circuit breaker
CN201369470Y (en) * 2009-03-23 2009-12-23 陈华强 Earth-leakage protecting plug
CN102957057A (en) * 2011-08-22 2013-03-06 通领科技集团有限公司 Leakage-protection tripolar plug
CN203085890U (en) * 2013-02-01 2013-07-24 乐清市容宏电气科技有限公司 Plug with electric leakage protection function
CN104600663A (en) * 2014-12-27 2015-05-06 田子欣 Voltage-current hybrid leakage protection plug

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2629206Y (en) * 2003-04-16 2004-07-28 黄浙勇 Intelligent plastic shell leakage circuit breaker
CN201369470Y (en) * 2009-03-23 2009-12-23 陈华强 Earth-leakage protecting plug
CN102957057A (en) * 2011-08-22 2013-03-06 通领科技集团有限公司 Leakage-protection tripolar plug
CN203085890U (en) * 2013-02-01 2013-07-24 乐清市容宏电气科技有限公司 Plug with electric leakage protection function
CN104600663A (en) * 2014-12-27 2015-05-06 田子欣 Voltage-current hybrid leakage protection plug

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111941542A (en) * 2020-07-23 2020-11-17 盐城鼎恒机械有限公司 Horizontal circular saw mark machine with cable protection function

Similar Documents

Publication Publication Date Title
CN103439577B (en) The insulation resistance detection system of electric automobile power battery and detection method
CN104201647B (en) Electric appliance casing leakage protection circuit and method
CN107589349B (en) High voltage induction electricity getting system
CN104885703A (en) Tea garden mechanical pruning and picking device
CN103852694A (en) Power cable intelligent grounding box
CN107294060A (en) A kind of air purifier earth leakage protective device
CN205720519U (en) A kind of line fault on-line monitoring system
CN104483526A (en) Grounding current induction monitor for power grid transformer
CN100562243C (en) A kind of secondary cable shielding layer earthing mode
CN106246522A (en) Water pump data acquisition transmission, Based Intelligent Control and remote operating system
CN201359629Y (en) Direct-current power supply grounding alarm device
CN107666141A (en) A kind of alternating current-direct current for direct-flow distribution system is being got lines crossed default detection and protection device
CN206671414U (en) A kind of current monitoring and early warning system
CN206862346U (en) A kind of inclination of transmission line tower on-Line Monitor Device
CN208443961U (en) A kind of cable and junction malfunction indicator
CN207782491U (en) A kind of cable bushing circular current sensing electricity getting device
CN206759040U (en) A kind of new wind-light storage low pressure microgrid group's protection coordination controller
CN109659898A (en) A kind of high voltage direct current dry-type air-core reactor non-electric quantity protection system
CN203312784U (en) 10kV voltage transformer resonance eliminating device
CN206523575U (en) Arrester device for detecting performance based on automatic electricity getting
CN206378569U (en) A kind of voltage relay abnormal detector
CN206292293U (en) A kind of residual current detection device
CN206293878U (en) A kind of action protecting device of Intelligent Measurement residual current
CN205945018U (en) Dropout protection circuit that resistance -capacitance pressure reducing type is under -voltage
CN105511506B (en) Sump water-level control apparatus

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20171024