CN206790071U - A kind of novel protected counterpoise grounding electric alarm and protection circuit - Google Patents
A kind of novel protected counterpoise grounding electric alarm and protection circuit Download PDFInfo
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- CN206790071U CN206790071U CN201720031619.8U CN201720031619U CN206790071U CN 206790071 U CN206790071 U CN 206790071U CN 201720031619 U CN201720031619 U CN 201720031619U CN 206790071 U CN206790071 U CN 206790071U
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Abstract
The utility model provides a kind of novel protected counterpoise grounding electric alarm and protection circuit, including：Powered detecting module, signal conversion module and alarm and control module；Wherein, the powered detecting module includes neon tube, current-limiting resistance, body capacitance equivalent circuit；The signal conversion module includes optical-electrical converter and signal amplifier；The alarm and control module include signal threshold value comparison circuit, overflow warning circuit and power supply power-off control circuit.The utility model provides a kind of new solution for protective grounding tape electric alarm in electric power system and power-off protection, avoids being injured and being lost to caused by personnel and property caused by protective grounding tape electric fault in electric power system.
Description
Technical field
The utility model belongs to Electrical Safety protection field, the especially industrial or civilian electrical appliance metal shell with electrical domain
With the security protection of protective grounding tape electricity.
Background technology
Protective grounding line is required in industry and civil area, general power supply, the ground wire is as electric
What equipment or the security protection line of household electrical appliance (II classes) used, it is desirable to which metal shell of electrical equipment or household electrical appliance etc. will
It is connected with protective grounding line, personnel's injury or property loss caused by prevent it due to outer casing electrification.In practical application
On, because the protective grounding line in power supply is interconnected, in the event of power supply phase (fire) line and protective grounding
The failures such as line short circuit, then any one electrical appliance metal shell for connecting the protective grounding line can be powered, so as to using
Personnel or equipment itself cause damage.
Earth leakage circuit-breaker is commonly used in traditional supply line to carry out earth leakage protective, and earth leakage circuit-breaker is only to it
Leak current fault plays leakage protection caused by following electrical appliance itself, and does not have then to the ground path failure of its upper end
Creepage protection function.During here it is electric leakage accident typically occurs, even if its metal shell of broken electricity consumption appliance mains switch is still located
In the reason for the electriferous state.Furthermore general earth leakage circuit-breaker belongs to retarded type protection, (the shape only after the accident of electric leakage occurs
Into leakage current) it can just shield, and the protective grounding line failure to its upper end is helpless.So while use at present
The factor of electric appliance environment, often has the casualty accident that leaks electricity.
The generation of generally most electric leakage related accidents, it is not electrical appliance (including the hot water below earth leakage circuit-breaker
The II such as device electric appliances) electric leakage causes, but other electrical appliances in earth leakage circuit-breaker upper end connected with same ground wire
The ground path failure that (the high-power II electric appliances such as electromagnetic oven) or the electrical appliance (ammeter, illumination etc.) of public domain occur, makes
The ground protection line and electrical appliance metal shell of whole system are powered, and it is difficult to send out in advance that such protective grounding line failure, which is,
Now and prevent.
Utility model content
This earth leakage protective device is using the method for simple low cost, and identification electrical appliance metal shell is powered or protective grounding
Tape electric fault, alarm is taken in time or disconnects the precautionary measures such as electrical appliance power supply (including protective grounding line), to ensure personnel
Safely and avoid property loss.
The utility model is a kind of novel protected counterpoise grounding electric alarm and protection circuit, including：Powered detecting module, signal
Modular converter and alarm and control module；Wherein, it is equivalent to include neon tube, current-limiting resistance, body capacitance for the powered detecting module
Circuit；The signal conversion module includes optical-electrical converter and signal amplifier；The alarm and control module include signal threshold
Value comparison circuit, overflow warning circuit and deenergization control circuit.Characterized in that, the powered detecting module includes：Neon
Pipe, current-limiting resistance and body capacitance equivalent circuit；The signal conversion module includes：Optical-electrical converter and signal amplifier；Institute
Stating alarm and control module includes：Signal threshold value comparison circuit, overflowing warning circuit and disconnects electrical appliance power supply (including ground connection
Protective wire) control circuit；When the metallic object being connected in the powered detecting module with end of probe is powered, when there is certain voltage
Electric current faint Shi Huiyou is flowed through, and neon tube is sent faint light, and the optical signal of neon tube is converted into one through signal conversion module
Determine the electric signal of volt value, make alarm and control module is alarmed and cuts off power supply (including protective grounding line).This utility model
The characteristics of be, be connected using the end of probe of powered detecting module with detected metallic object, when detected metallic object is powered,
Utilize the series relationship of the neon tube in powered detecting module, current-limiting resistance and body capacitance equivalent circuit so that powered detection mould
Neon tube in block be added in the i.e. neon tube both ends of voltage between end of probe and body capacitance equivalent circuit voltage light it is (faint
Electric current flows through).Optical-electrical converter in signal conversion module plays the detection effect to neon tube luminous, when neon tube luminous, light
Photoelectric current in electric transducer changes, and amplifies photosignal through signal amplifier, when photosignal exceedes alarm threshold value
During voltage, the signal threshold value comparison circuit in control module sends the electric signal that overflows, and overflows warning circuit and electrical appliance power supply breaks
Electric control circuit starts, and sends alarm or cut-out electrical appliance power supply (including protective grounding line), plays leakage-current alarm and breaks
Electrical protection.
Here detected object is directed to the protective grounding line of electrical appliance power supply, signal conversion module and alarm
And the power supply of control module provides (or battery offer) by the live wire and zero line of power supply.
Brief description of the drawings
Accompanying drawing is used for providing further understanding to of the present utility model, and a part for constitution instruction, with this practicality
New embodiment is provided commonly for explaining the utility model, does not form to limitation of the present utility model.In the accompanying drawings：
Shown in Fig. 1 is a kind of new pattern creepage alarm and the modular structure signal of protection circuit provided by the utility model
Figure；
Shown in Fig. 2 is the more detailed broken away view of each module in Fig. 1.
Embodiment
Embodiment of the present utility model is described in detail below with reference to drawings and Examples, whereby to the utility model
How application technology means solve technical problem, and the implementation process for reaching technique effect can fully understand and implement according to this.
If it should be noted that do not form conflict, each feature in each embodiment and each embodiment in the utility model
It can be combined with each other, the technical scheme formed is within the scope of protection of the utility model.
A kind of alarm of new pattern creepage and protection circuit modular structure that the utility model embodiment provides are formed such as Fig. 1 institutes
Show, including：Leak electricity detecting module, signal conversion module and power-off control module.Alleged by the utility model new pattern creepage alarm and
Protection circuit, characteristics of luminescence when referring to have enough starting voltages using the both ends of neon tube and thering is the micro-current to flow through, detection leakage
The occurrence of electric.
Wherein, the electric leakage detecting module is electrical appliance metal shell or protective grounding tape electro-detection module, when above-mentioned
Object is powered and when reaching certain voltage, has weak current and flows through module and luminous tube is sent faint optical signal；It is described
Signal conversion module be photosignal detect and modular converter, its act as detection electric leakage detecting module optical signal, and according to
The feature of optical signal and produce corresponding electric signal；The power-off control module is leakage-current alarm and the control for cutting off power supply
Molding block, when detecting that signal conversion module sends electric signal, power-off control module will send report according to its signal characteristic
Alert signal and cut-out electrical appliance power supply, tripping protection it can also be grounded simultaneously.
Preferably, the electric leakage detecting module includes：Luminous tube, current-limiting resistance and body capacitance equivalent circuit.
Preferably, the signal conversion module includes：Optical-electrical converter and signal amplifier.
Preferably, the power-off control module includes：Signal threshold value comparison circuit, overflow warning circuit and electrical appliance includes
Power cut-off control circuit including protective grounding line.
Preferably, signal electric leakage detecting module be autonomous working module, and module one end is measurement end, when measurement end with
When metal electrical body contacts, the luminous tube in module can light immediately.
Preferably, when the metallic object being connected in the electric leakage detecting module with end of probe is powered, luminous tube can be made to light,
The faint optical signal of neon tube is converted into the electric signal of certain volt value through signal conversion module, makes power-off control module alarm simultaneously
Electrical appliance power supply is cut off, tripping protection can also be grounded simultaneously.
Preferably, the signal conversion module and power-off control module are powered by independent power supply.
Preferably, luminous tube, current-limiting resistance and the body capacitance equivalent circuit in the electric leakage detecting module close for series connection
System, can be luminous tube, current-limiting resistance, body capacitance equivalent devices sequential series mode or current-limiting resistance, luminous
Pipe, body capacitance equivalent devices sequential series mode.
Preferably, the luminous tube in the electric leakage detecting module can be neon tube or other luminous discharge tubes.
Preferably, the optical-electrical converter, it is changed into corresponding telecommunications for receiving the optical signal of luminous tube, and by optical signal
Number.
Preferably, the signal amplifier, for electric signal caused by optical-electrical converter to be amplified, facilitate subsequent conditioning circuit after
Continuous processing coherent signal.
Preferably, the signal after the signal threshold value comparison circuit amplifies signal amplifier is compared with prearranged signals, root
Two kinds of different comparative results are exported according to bigger than prearranged signals or small.
Preferably, the warning circuit that overflows, for when photosignal exceedes predetermined value, controlling luminescent device or the sound
Device lights or sounding, plays alarm function.
Preferably, the electrical appliance power cut-off control circuit, for when photosignal exceedes predetermined value, controlling relay
Device or other cut-off switch, controlled electrical appliance power supply is disconnected into (including protective grounding line), play power-off protection effect.
Preferably, if the caused electric signal of optical-electrical converter in the signal conversion module is sufficiently strong, can save
Signal amplifier in signal conversion module, make there was only optical-electrical converter in signal conversion module.
Although embodiment disclosed in the utility model is as above, described content is only to facilitate understand this practicality
New and use embodiment, is not limited to the utility model.Method described in the utility model can also have other a variety of
Embodiment, in the case of without departing substantially from the utility model in essence, those skilled in the art work as can be according to the utility model
Various corresponding changes and deformation are made, but these corresponding changes and deformation should all belong to claim of the present utility model
Protection domain.
Claims (15)
1. a kind of new pattern creepage alarm and power-off protecting circuit, including：Electric leakage detecting module, signal conversion module and power-off control
Module；
Wherein, the electric leakage detecting module is electrical appliance metal shell or protective grounding tape electro-detection module, when above-mentioned object
It is powered and when reaching certain voltage, have weak current and flow through module and luminous tube is sent faint optical signal；
The signal conversion module is photosignal detection and modular converter, and it act as the light letter of detection electric leakage detecting module
Number, and corresponding electric signal is produced according to the feature of optical signal；
The power-off control module be leakage-current alarm and cut off power supply control module, when detect signal conversion module send out
When going out electric signal, power-off control module will send alarm signal and cut-out electrical appliance power supply, also may be used according to its signal characteristic
With tripping protection ground wire simultaneously.
2. a kind of new pattern creepage alarm according to claim 1 and power-off protecting circuit, it is characterised in that the electric leakage is visited
Surveying module includes：Luminous tube, current-limiting resistance and body capacitance equivalent circuit.
3. a kind of new pattern creepage alarm according to claim 1 and power-off protecting circuit, it is characterised in that the signal turns
Mold changing block includes：Optical-electrical converter and signal amplifier.
4. a kind of new pattern creepage alarm according to claim 1 and power-off protecting circuit, it is characterised in that the power-off control
Molding block includes：Signal threshold value comparison circuit, overflow the power cut-off of warning circuit and electrical appliance including protective grounding line
Control circuit.
5. a kind of new pattern creepage alarm according to claim 1 and power-off protecting circuit, it is characterised in that the signal leakage
Electric detecting module is autonomous working module, and module one end is measurement end, when measurement end and the contact of metal electrical body, in module
Luminous tube can light immediately.
6. a kind of new pattern creepage alarm according to claim 1 and power-off protecting circuit, it is characterised in that the electric leakage is visited
When the metallic object being connected in survey module with end of probe is powered, luminous tube can be made to light, it is through signal conversion module that neon tube is faint
Optical signal be converted into the electric signal of certain volt value, power-off control module is alarmed and cut off electrical appliance power supply, can also
Tripping protection ground wire simultaneously.
7. a kind of new pattern creepage alarm according to claim 1 and power-off protecting circuit, it is characterised in that the signal turns
Block and power-off control module is changed the mold to power by independent power supply.
8. a kind of new pattern creepage alarm according to claim 2 and power-off protecting circuit, it is characterised in that the electric leakage is visited
Survey module in luminous tube, current-limiting resistance and body capacitance equivalent circuit be series relationship, can be luminous tube, current-limiting resistance,
Body capacitance equivalent devices sequential series mode or current-limiting resistance, luminous tube, body capacitance equivalent devices sequential series
Mode.
9. a kind of new pattern creepage alarm according to claim 2 and power-off protecting circuit, it is characterised in that the electric leakage is visited
The luminous tube surveyed in module can be neon tube.
10. a kind of new pattern creepage alarm according to claim 3 and power-off protecting circuit, it is characterised in that the photoelectricity
Converter, it is changed into corresponding electric signal for receiving the optical signal of luminous tube, and by optical signal.
11. a kind of new pattern creepage alarm according to claim 3 and power-off protecting circuit, it is characterised in that the signal
Amplifier, for electric signal caused by optical-electrical converter to be amplified, subsequent conditioning circuit is facilitated to continue with coherent signal.
12. a kind of new pattern creepage alarm according to claim 4 and power-off protecting circuit, it is characterised in that the signal
Threshold value comparison circuit signal amplifier is amplified after signal compared with prearranged signals, according to bigger or small and defeated than prearranged signals
Go out two kinds of different comparative results.
13. a kind of new pattern creepage alarm according to claim 4 and power-off protecting circuit, it is characterised in that described to overflow
Warning circuit, for when photosignal exceedes predetermined value, control luminescent device or sound device is luminous or sounding, play report
Alert effect.
14. a kind of new pattern creepage alarm according to claim 4 and power-off protecting circuit, it is characterised in that the electricity consumption
Device power cut-off control circuit, for when photosignal exceedes predetermined value, control relay or other cut-off switch, will be controlled
Electrical appliance power supply disconnects, and tripping protection can also be grounded simultaneously, play power-off protection effect.
15. a kind of new pattern creepage alarm according to claim 8 and power-off protecting circuit, it is characterised in that the signal
If the caused electric signal of optical-electrical converter in modular converter is sufficiently strong, the signal amplification in signal conversion module can be saved
Device, make there was only optical-electrical converter in signal conversion module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720031619.8U CN206790071U (en) | 2017-01-04 | 2017-01-04 | A kind of novel protected counterpoise grounding electric alarm and protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720031619.8U CN206790071U (en) | 2017-01-04 | 2017-01-04 | A kind of novel protected counterpoise grounding electric alarm and protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206790071U true CN206790071U (en) | 2017-12-22 |
Family
ID=60704608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720031619.8U Expired - Fee Related CN206790071U (en) | 2017-01-04 | 2017-01-04 | A kind of novel protected counterpoise grounding electric alarm and protection circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN206790071U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602500A (en) * | 2017-01-04 | 2017-04-26 | 郝珊 | Novel protection grounding live-line alarm and protection circuit |
| CN108051694A (en) * | 2018-01-16 | 2018-05-18 | 欧朗电子科技有限公司 | Smart home production hand iron electric leakage real-time detection warning device |
-
2017
- 2017-01-04 CN CN201720031619.8U patent/CN206790071U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602500A (en) * | 2017-01-04 | 2017-04-26 | 郝珊 | Novel protection grounding live-line alarm and protection circuit |
| CN108051694A (en) * | 2018-01-16 | 2018-05-18 | 欧朗电子科技有限公司 | Smart home production hand iron electric leakage real-time detection warning device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20190104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |