CN109959834A - Earth detector - Google Patents
Earth detector Download PDFInfo
- Publication number
- CN109959834A CN109959834A CN201711338790.4A CN201711338790A CN109959834A CN 109959834 A CN109959834 A CN 109959834A CN 201711338790 A CN201711338790 A CN 201711338790A CN 109959834 A CN109959834 A CN 109959834A
- Authority
- CN
- China
- Prior art keywords
- module
- switch
- switch module
- earth detector
- triode
- 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
Classifications
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
Abstract
The invention discloses a kind of earth detectors, belong to power engineering field.Described device includes: power module, cue module, first switch module and test rapier；One end of power module is connected with one end of cue module, and the other end of cue module is connected with the first end of first switch module, and the second end of first switch module is connected with the other end of power module；The third end of first switch module is connected with test rapier；Test rapier is connected with metal shell to be detected；Conducting when first switch module is used to be connected when passing through electric current on testing rapier, power module are used to power for cue module.Earth detector provided by the invention can effectively ensure the safety of operator for detecting whether electrical equipment leaks electricity to avoid the situation accidentally surveyed, accidentally prompted.
Description
Technical field
The present invention relates to power engineering field, in particular to a kind of earth detector.
Background technique
The metal shell of electrical equipment generally has zero connection protection, however, since the most electrical equipment in oil field is all transported
Row is under the adverse circumstances in outdoor field, and therefore, the zero connection protection line of electrical equipment has the problems such as disconnected de- and virtual connection, at this point,
The metal shell of electrical equipment will charge, and constitute very big harm to the safety of operator.
In the related technology, whether operator is leaked electricity using voltage test pencil detection electrical equipment.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems:
In the case where the operation error of operator, the case where accidentally surveying is likely to or occurred using voltage test pencil detection, from
And carry out hidden danger to the safety belt of operator.
Summary of the invention
In order to solve problems in the prior art, the embodiment of the invention provides a kind of earth detectors.The electric leakage inspection
Surveying device includes: power module, cue module, first switch module and test rapier；
One end of the power module is connected with one end of the cue module, the other end of the cue module with it is described
The first end of first switch module is connected, and the second end of the first switch module is connected with the other end of the power module；
The third end of the first switch module is connected with the test rapier；
The test rapier is connected with metal shell to be detected；
The first switch module when passing through electric current on the test rapier for being connected；
The power module includes that battery pack, external power supply submodule and switch submodule, the switch submodule are used
In turning off the external power supply submodule when the battery pack is connected, and for being closed when the external power supply submodule is connected
Break the battery pack, the external power supply submodule includes firewire, zero curve and the rectification module being all connected with firewire and zero curve；
The cue module includes light emitting diode.
Optionally, the earth detector further includes second switch module, and the third end of the first switch module is logical
It crosses the second switch module to be connected with the test rapier, the second switch module is connected with the power module；
The second switch module is led for controlling the first switch module when passing through electric current on the test rapier
It is logical.
Optionally, the earth detector further includes third switch module, and the second switch module passes through described the
Three switch modules are connected with the test rapier, and the third switch module is connected with the power module；
The third switch module is led for controlling the second switch module when passing through electric current on the test rapier
It is logical, so that the second switch module controls the first switch module conducting.
Optionally, the first switch module includes the first triode, and the second switch module includes the second triode；
One end of the power module is connected with one end of the cue module, the other end of the cue module with it is described
The collector of first triode is connected, and the emitter of first triode is connected with the other end of the power module, described
The base stage of first triode is connected with the collector of second triode；
The collector of second triode is connected with one end of the power module, the emitter of second triode
It is connected with the other end of the power module, the base stage of second triode passes through the third switch module and the test
Rapier is connected.
Optionally, the third switch module includes field effect transistor, the grid of the field effect transistor with it is described
Test rapier be connected, the source electrode and drain electrode of the field effect transistor with connect respectively with the both ends of the power module；
The drain electrode of the field-effect tube is connect with the base stage of second triode.
Optionally, the earth detector further includes first resistor module；
The test rapier is connect after concatenating the first resistor module with the third end of the first switch module.
Optionally, the cue module further includes voice submodule and loudspeaker, the voice submodule and the loudspeaking
Device connection；
The loudspeaker is for playing the voice stored in the voice submodule when there is electric current to pass through.
Optionally, the earth detector further includes insulation shell, the power module, the cue module, described
First switch module is located in the insulation shell；
The test rapier is located at the outside of the insulation shell；
Control switch is provided on the insulation shell, the control switch is arranged on the input side of the transformer,
The control switch is for controlling the power module conducting and disconnecting.
Optionally, multiple through-holes are provided on the insulation shell, the multiple through-hole is opposite with the loudspeaker.
Technical solution provided in an embodiment of the present invention has the benefit that
By providing including power module, cue module, first switch module and the earth detector for testing rapier, and
The test rapier being connect with metal shell to be detected current potential and ground potential there are when potential difference, i.e., metal shell band to be detected
When electric, first switch module conducting, power module is cue module power supply, and cue module is prompted, so that the present invention provides
Earth detector whether prompted the operation independent of operator, so as to avoid accidentally survey, accidentally prompt the case where,
It is effectively guaranteed the safety of operator.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of structural schematic diagram of earth detector provided in an embodiment of the present invention.
Fig. 2 is a kind of structural schematic diagram of power module provided in an embodiment of the present invention.
Fig. 3 is a kind of structural schematic diagram of cue module provided in an embodiment of the present invention.
Fig. 4 is a kind of structural schematic diagram of earth detector provided in an embodiment of the present invention.
Fig. 5 is a kind of structural schematic diagram of earth detector provided in an embodiment of the present invention.
Fig. 6 is a kind of first switch module, second switch module and third switch module provided in an embodiment of the present invention
Structural schematic diagram.
Fig. 7 is a kind of external structure schematic diagram of earth detector provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The present invention provides a kind of earth detectors, as shown in Figure 1, the earth detector includes: power module
110, cue module 120, first switch module 130 and test rapier 140.
One end of the power module 110 is connected with one end of the cue module 120, the other end of the cue module 120 with
The first end of the first switch module 130 is connected, and the second end of the first switch module 130 is another with the power module 110
End is connected.
The third end of the first switch module 130 is connected with the test rapier 140.
The test rapier 140 is connected with metal shell to be detected, in one embodiment of the invention, the test rapier
140 can be 2 millimeters of thickness of conductive metal sheet.
The first switch module 130 when passing through electric current on the test rapier 140 for being connected.
As shown in Fig. 2, the power module 110 includes battery pack 1101, external power supply submodule 1102 and switch submodule
Block 1103, the switch submodule 1103 can be chain button switch, which is used in turn-on battery group
External power supply submodule 1102 is turned off when 1101, and for turning off battery pack 1101 when external power supply submodule 1103 is connected,
External power supply submodule 1102 includes firewire L, zero curve N and the rectification module A being all connected with firewire L and zero curve N.The power supply mould
Block 110 includes both ends d1 and d2, and the second end of first switch module 130 is connected with the end d2 of the power module 110, power module
110 end d1 is connected with one end of the cue module 120.In one embodiment of the invention, firewire L and zero curve N can be with
It is 1.5 squares of multiply flexible circuit conductors, rectification module A can be 220V/1.5V small-power rectification module.At of the invention one
In embodiment, which includes two section 1.5V dry cells.
As shown in figure 3, cue module 120 includes light emitting diode 1201, in addition to this, which can be with
Including voice submodule 1202 and loudspeaker 1203, which connect with the loudspeaker 1203；The loudspeaker
1203 for playing the voice stored in the voice submodule 1202 when there is electric current to pass through.Cue module 120 may include two
Hold d3 and d4, wherein the end d3 of cue module 120 connect with the end d1 of power module 110, the end d4 of cue module 120 and this
The first end of first switch module 130 is connected.In one embodiment of the invention, the model of the voice submodule 1202
ISD series, loudspeaker 1203 are Microspeaker.In one embodiment of the invention, the voice submodule 1202 and loudspeaking
Device 1203 is in parallel with the second capacitor C2, and the capacitance of second capacitor C2 is 100 microfarads.
As shown in Figure 1, when passing through electric current on the test rapier 140, that is, be connected with the test rapier 140 to be detected
When metal shell charges, first switch module 130 is connected, and power module 110 is the power supply of cue module 120, the cue module 120
It is i.e. operable, to prompt operator.For example, light emitting diode 1201 in the cue module 120 can be with
It shines, the loudspeaker 1203 in the cue module 120 can play the voice stored in the voice submodule 1202.When the test
When on rapier 140 not over electric current, that is, when the metal shell to be detected being connected with the test rapier 140 is not charged, first is opened
It closes module 130 to disconnect, then passes through the cue module 120 without electric current, which does not work.
In conclusion including power module, cue module, first switch module and the electric leakage inspection for testing rapier by providing
Survey device, and in current potential and the ground potential of test rapier connect with metal shell to be detected there are when potential difference, i.e., it is to be detected
When metal shell charges, first switch module conducting, power module is cue module power supply, and cue module is prompted, so that
Whether earth detector provided by the invention is prompted the operation independent of operator, so as to avoid accidentally surveying, missing
The case where prompt, is effectively guaranteed the safety of operator.
Further, as shown in figure 4, the earth detector further includes second switch module 150, the first switch module
130 third end is connected by the second switch module 150 with the test rapier 140, the second switch module 150 and the power supply
Module 110 is connected, which is used for the control first switch module 130 when passing through electric current on testing rapier 140 and leads
It is logical.
Further, as shown in figure 5, the earth detector further includes third switch module 160, the second switch module
150 are connect by the third switch module 160 with test rapier 140, which connect with power module 110,
The third switch module 160 is used for the control second switch module 130 when passing through electric current on testing rapier 140 and is connected, so that the
Two switch modules 150 control first switch module 130 and are connected.
Further, as shown in fig. 6, the first switch module 130 includes the first triode 131, first triode 131
It can be 9013 type NPN triodes, which includes the second triode 151, which can be with
For BC558 type silicon PNP triode, which includes field effect transistor 161, which can
Think 3DJ6 field effect transistor.One end of the power module 110 is connected with one end of the cue module 120, the cue module
120 other end is connected with the collector of first triode 131, the emitter of first triode 131 and the power module
110 other end is connected, and the base stage of first triode 131 can pass through the collection of first resistor R1 and second triode 151
Electrode is connected, and the collector of second triode 151 is connect by second resistance R2 with one end of power module 110, this second
The emitter of triode 151 is connect with the other end of power module 110, the base stage and field effect transistor of second triode 151
The drain electrode of pipe 161 connects, and the drain electrode of the field effect transistor 161 is connect by the 5th resistance R5 with one end of power module 110,
The source electrode of the field effect transistor 161 is connect with the other end of power module 110, and the grid of the field effect transistor 161 passes through
3rd resistor R3 and the 4th resistance R4 is connect with test rapier 140.
In addition, one end of first capacitor C1 is connect with the base stage of the first triode 131, the other end of first capacitor C1 and
The emitter of one triode 131 connects.In in one embodiment of the present of invention, first capacitor C1 is that capacitance is 22 microfarads
The electrolytic capacitor of drawing.
In one embodiment of the invention, the resistance value of first resistor R1 and second resistance R2 can be 100 ohm,
The resistance value of 3rd resistor R3 and the 4th resistance R4 can be 100 kilohms.
As shown in fig. 6, when passing through electric current on the test rapier 140, that is, be connected with the test rapier 140 to be detected
When metal shell charges, field effect transistor 161, the second triode 151 and the conducting of the first triode 131,110 energy of power module
It enough powers for cue module 120, the cue module 120 is i.e. operable, to prompt operator.
When on the test rapier 140 not over electric current, that is, outside the metal to be detected being connected with the test rapier 140
When shell is not charged, field effect transistor 161, the second triode 151 and the first triode 131 are not turned on, then are passed through without electric current
The cue module 120, the cue module 120 do not work.
Further, as shown in fig. 7, the earth detector further includes insulation shell 170, the power module 110, this is mentioned
Show that module 120, the first switch module 130 are located in the insulation shell 170；The test rapier 140 is located at the insulation shell 170
Outside；It is provided with control switch 180 on the insulation shell 170, which can be switch mentioned above submodule
Block 1103, the control switch 180 is for controlling the power module 100 conducting and disconnecting.Optionally, it is set on the insulation shell 170
Multiple through-hole T are equipped with, multiple through-hole T is opposite with loudspeaker.In addition, firewire L and zero curve N can be connect with plug 190, it should
Plug 190 is located at the outside of the insulation shell 170.
Meanwhile it may include magnetic bases 200 that the earth detector, which is seen also, the magnetic bases 200 and the insulation shell
170 connections, the insulation shell 170 can be fixed on metal shell to be detected by the magnetic bases 200.
In conclusion including power module, cue module, first switch module and the electric leakage inspection for testing rapier by providing
Survey device, and in current potential and the ground potential of test rapier connect with metal shell to be detected there are when potential difference, i.e., it is to be detected
When metal shell charges, first switch module conducting, power module is cue module power supply, and cue module is prompted, so that
Whether earth detector provided by the invention is prompted the operation independent of operator, so as to avoid accidentally surveying, missing
The case where prompt, is effectively guaranteed the safety of operator.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of earth detector, which is characterized in that the earth detector includes power module, cue module, first
Switch module and test rapier；
One end of the power module is connected with one end of the cue module, the other end of the cue module and described first
The first end of switch module is connected, and the second end of the first switch module is connected with the other end of the power module；
The third end of the first switch module is connected with the test rapier；
The test rapier is connected with metal shell to be detected；
The first switch module when passing through electric current on the test rapier for being connected；
The power module includes that battery pack, external power supply submodule and switch submodule, the switch submodule are used for
The external power supply submodule is turned off when the battery pack is connected, and for turning off institute when the external power supply submodule is connected
Battery pack is stated, the external power supply submodule includes firewire, zero curve and the rectification module being all connected with firewire and zero curve；
The cue module includes light emitting diode.
2. earth detector according to claim 1, which is characterized in that the earth detector further includes second opening
Module is closed, the third end of the first switch module is connected by the second switch module with the test rapier, and described the
Two switch modules are connected with the power module；
The second switch module is for controlling the first switch module conducting when passing through electric current on the test rapier.
3. earth detector according to claim 2, which is characterized in that the earth detector further includes that third is opened
Module is closed, the second switch module is connected by the third switch module with the test rapier, the third switching molding
Block is connected with the power module；
The third switch module is connected for controlling the second switch module when passing through electric current on the test rapier, with
The second switch module is set to control the first switch module conducting.
4. earth detector according to claim 3, which is characterized in that the first switch module includes the one or three pole
Pipe, the second switch module include the second triode；
One end of the power module is connected with one end of the cue module, the other end of the cue module and described first
The collector of triode is connected, and the emitter of first triode is connected with the other end of the power module, and described first
The base stage of triode is connected with the collector of second triode；
The collector of second triode is connected with one end of the power module, the emitter of second triode and institute
The other end for stating power module is connected, and the base stage of second triode passes through the third switch module and the test rapier
It is connected.
5. earth detector according to claim 4, which is characterized in that the third switch module includes field-effect crystalline substance
Body pipe, the grid of the field effect transistor are connected with the test rapier, the source electrode and drain electrode of the field effect transistor with
It is connect respectively with the both ends of the power module；
The drain electrode of the field-effect tube is connect with the base stage of second triode.
6. earth detector according to claim 1, which is characterized in that the earth detector further includes the first electricity
Hinder module；
The test rapier is connect after concatenating the first resistor module with the third end of the first switch module.
7. earth detector according to claim 1, which is characterized in that the cue module further includes voice submodule
And loudspeaker, the voice submodule are connect with the loudspeaker；
The loudspeaker is for playing the voice stored in the voice submodule when there is electric current to pass through.
8. earth detector according to claim 1, which is characterized in that the earth detector further includes insulation shell
Body, the power module, the cue module, the first switch module are located in the insulation shell；
The test rapier is located at the outside of the insulation shell；
Control switch is provided on the insulation shell, the control switch is for controlling the power module conducting and disconnecting.
9. earth detector according to claim 8, which is characterized in that be provided on the insulation shell multiple logical
Hole, the multiple through-hole are opposite with loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711338790.4A CN109959834A (en) | 2017-12-14 | 2017-12-14 | Earth detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711338790.4A CN109959834A (en) | 2017-12-14 | 2017-12-14 | Earth detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109959834A true CN109959834A (en) | 2019-07-02 |
Family
ID=67017937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711338790.4A Pending CN109959834A (en) | 2017-12-14 | 2017-12-14 | Earth detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109959834A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2101879U (en) * | 1991-04-23 | 1992-04-15 | 腾洪福 | Multifunctional test pencil |
| CN2110233U (en) * | 1992-01-06 | 1992-07-15 | 李其开 | Electrical eqiupment electricity leakage display siren |
| CN201828627U (en) * | 2010-10-12 | 2011-05-11 | 中国矿业大学 | Leakage alarm |
| CN102662124A (en) * | 2012-05-08 | 2012-09-12 | 河北省电力公司超高压输变电分公司 | Portable type multifunctional serial electric detector |
| CN103176093A (en) * | 2011-12-23 | 2013-06-26 | 海洋王照明科技股份有限公司 | Leakage detection circuit |
| CN204116521U (en) * | 2014-10-15 | 2015-01-21 | 中国石油天然气股份有限公司 | Leakage alarm |
| CN204142883U (en) * | 2014-11-07 | 2015-02-04 | 格力电器（武汉）有限公司 | Electric-leakage detection circuit and detection of electrical leakage frock |
| CN204807618U (en) * | 2015-04-30 | 2015-11-25 | 中国石油天然气股份有限公司 | Electroscope |
| CN204855696U (en) * | 2015-07-16 | 2015-12-09 | 国家电网公司 | Earth detector |
-
2017
- 2017-12-14 CN CN201711338790.4A patent/CN109959834A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2101879U (en) * | 1991-04-23 | 1992-04-15 | 腾洪福 | Multifunctional test pencil |
| CN2110233U (en) * | 1992-01-06 | 1992-07-15 | 李其开 | Electrical eqiupment electricity leakage display siren |
| CN201828627U (en) * | 2010-10-12 | 2011-05-11 | 中国矿业大学 | Leakage alarm |
| CN103176093A (en) * | 2011-12-23 | 2013-06-26 | 海洋王照明科技股份有限公司 | Leakage detection circuit |
| CN102662124A (en) * | 2012-05-08 | 2012-09-12 | 河北省电力公司超高压输变电分公司 | Portable type multifunctional serial electric detector |
| CN204116521U (en) * | 2014-10-15 | 2015-01-21 | 中国石油天然气股份有限公司 | Leakage alarm |
| CN204142883U (en) * | 2014-11-07 | 2015-02-04 | 格力电器（武汉）有限公司 | Electric-leakage detection circuit and detection of electrical leakage frock |
| CN204807618U (en) * | 2015-04-30 | 2015-11-25 | 中国石油天然气股份有限公司 | Electroscope |
| CN204855696U (en) * | 2015-07-16 | 2015-12-09 | 国家电网公司 | Earth detector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101945534B (en) | Method and circuit for protecting circuit board in case of water inflow of mobile terminal and mobile terminal | |
| CN204886403U (en) | External power and backup battery's seamless handover circuit | |
| CN103338029B (en) | A kind of automatic reset device | |
| CN101552482A (en) | Charge and discharge control circuit and battery device | |
| CN103178595A (en) | Mobile phone adapter | |
| CN104467044A (en) | Charging control circuit and charger | |
| CN103427618A (en) | Soft start control circuit | |
| CN108072809A (en) | A kind of electrical load detection of electrical leakage warning circuit | |
| CN103645440B (en) | A kind of switching device being applied to multi-channel battery test | |
| CN201898656U (en) | Protective circuit of waterlogged mobile terminal circuit board and mobile terminal | |
| CN106026259A (en) | Charging control circuit and charging device of electronic equipment | |
| CN201478415U (en) | Waterproof mobile phone battery | |
| CN109959834A (en) | Earth detector | |
| CN105676137B (en) | A kind of high speed cell voltage scanning circuit | |
| CN207586342U (en) | A kind of electrical load detection of electrical leakage warning circuit | |
| CN207232301U (en) | A kind of equipment of quick detection battery pack voltage sample line line sequence | |
| CN209132405U (en) | Switching-on and switching-off state detection circuit | |
| CN101902061B (en) | Method for controlling connection and disconnection of charge path of battery, circuit and battery | |
| CN206922502U (en) | Power down protection control circuit and electronic equipment | |
| CN202712884U (en) | Battery connection detecting circuit and battery charger | |
| CN103683238A (en) | Electrostatic protection circuit of camera port | |
| CN101614586A (en) | A kind of ionic flame detector and equipment thereof | |
| CN109599851B (en) | Protection circuit and display panel | |
| CN206023280U (en) | Over-discharge protection circuit | |
| CN207010360U (en) | A kind of grid monitoring system |
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: 20190702 |