CN100526887C - Electric power monitor for single phase AC electric device inspection and repair - Google Patents
Electric power monitor for single phase AC electric device inspection and repair Download PDFInfo
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- CN100526887C CN100526887C CNB2005101319922A CN200510131992A CN100526887C CN 100526887 C CN100526887 C CN 100526887C CN B2005101319922 A CNB2005101319922 A CN B2005101319922A CN 200510131992 A CN200510131992 A CN 200510131992A CN 100526887 C CN100526887 C CN 100526887C
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- utmost point
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- zero line
- live wire
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Abstract
The power supply monitor includes voltmeter, ammeter, power plug and socket, two ground state indicator lights (GSIL), thermostat, and temperature indicator. Protective earthing poles (PEPs), live wire poles, and zero line poles of the power plug and socket are connected to correspondingly. The voltmeters are connected between live wire poles and zero line poles of the power plug and power socket in parallel. The ammeter is connected to live wire poles between the power plug and power socket in series. The thermostat is connected between PEP and zero line pole inside power plug. Two GSIL are connected respectively between live wire pole and PEP of power plug as well as between zero line pole and PEP of power socket in parallel. Through switcher, the temperature indicator is connected to temperature sensor inside thermostat. The invention can display states of voltage and current synchronistically, monitor ground state of power supply, and temperature rise state of power socket.
Description
Technical field
The invention belongs to a kind of electric appliance checking device, or rather, is that a kind of equipment at the use single-phase alternating current overhauls the power supply monitoring instrument.
Background technology
Single phase alternating current power supply is given our production, when life offers convenience, accidents such as electric leakage may be taken place under some fortuitous event, generally comes trouble-saving generation by the ground wire protection system is set at present.But user, particularly domestic consumer often pay attention to inadequately for being provided with of ground wire, also have or not the monitoring equipment of actual effect ground wire because also lack a kind of easy under user environment, monitoring intuitively at present simultaneously.
When detecting for alternating-current installation/AC installation, the most necessary means are that voltage and current changes, the particularly monitoring that changes synchronously.But, use multimeter can not embody two kinds of parameters simultaneously; Reometer can not insert related circuit easily, and the starting current of some electrical equipment, and the several times of running current are provided with range according to starting current often, and then precision is not high; According to running current range is set, then dangerous for reometer.At present, many employings of family concealed installation electrical arrangement uses pincers type reometer also very inconvenient.For high-power electric appliance equipment, superheating phenomenon often takes place in supply socket because of various reasons, and the overheated burning of supply socket is the major hidden danger of fire.
To sum up, also there is following defective in present power supply monitoring equipment:
(1) can not make things convenient for monitoring intuitively to have or not the access of actual effect ground wire;
(2) can not embody two kinds of parameters of current/voltage synchronously;
(3) can not monitor timely the supply socket temperature rise.
Summary of the invention
The present invention is intended to overcome above-mentioned defective provides a kind of electric power monitor that uses single phase AC electric device that overhauls.This monitor can easily be monitored the ground connection situation and the supply socket temperature rise of power supply, can also embody electric current, two kinds of parameters of voltage synchronously, is a kind of comprehensive integrated power supply monitoring equipment.
For achieving the above object, the present invention adopts following technical scheme:
A kind of Power supply detector that uses single phase AC electric device that overhauls; comprise voltage table; attaching plug and socket; the first ground state pilot lamp; the second ground state pilot lamp; temperature indicator; the protective ground utmost point of described attaching plug; the live wire utmost point is connected with zero line is extremely corresponding; described voltage table and be connected in the live wire utmost point and the zero line utmost point between; it is characterized in that; also comprise the reometer monitoring and protecting device that is connected on attaching plug and socket live wire interpolar; connection one temperature controller of ground protection utmost point volume zero line interpolar in the described attaching plug; the described first ground state pilot lamp is attempted by between the live wire utmost point and the ground protection utmost point of supply socket; the described second ground state pilot lamp is serially connected in and is connected between the supply socket zero line utmost point and the ground protection utmost point; described temperature indicator (20) is connected with temperature controller (17) by switch (19); when supply socket is warmed up to the temperature controller action; the energized plug protective ground utmost point; pass through switch; temperature sensor in the temperature controller and temperature indicator are connected, and show the socket soaking condition.
The Power supply detector of single phase AC electric device is used in described maintenance, it is characterized in that described reometer monitoring and protecting device is made of reometer, shunt resistance, a described reometer two ends protection switch in parallel, short circuit current protection table when the precognition start-up course.
The Power supply detector of single phase AC electric device is used in described maintenance, it is characterized in that described protection switch is short circuiting switch, delay switch or pressure limiting switch.
The Power supply detector of single phase AC electric device is used in described maintenance, it is characterized in that the described first ground state pilot lamp that is attempted by between the supply socket live wire utmost point and the ground protection utmost point is selected the green indicating lamp of high value for use.
The Power supply detector of single phase AC electric device is used in described maintenance, it is characterized in that the described second ground state pilot lamp that is attempted by between the supply socket zero line utmost point and the ground protection utmost point is selected the red led of high value for use.
The present invention can bring following beneficial effect:
(1) this Power supply detector can detect the wiring state of supply socket inside easily, and the user can conveniently get information about ground state by the ground state pilot lamp.
(2) simultaneously display voltage and current status of this Power supply detector, and when showing current status, adopt the range protection to obtain best range and show;
(3) this electric power monitor can point out user's supply socket whether temperature rise is in use arranged by temperature indicator, prevents trouble before it happens for the fire that the supply socket fault causes.
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the structural principle synoptic diagram of the embodiment of the invention.
Wherein Reference numeral is:
The 1-attaching plug 2-protective ground utmost point 3-live wire utmost point 4-zero line utmost point
5-voltage table 6-reometer assembly 7-reometer 8-shunt resistance
9-delay switch or pressure limiting switch 10-protection switch 11-supply socket
The 12-socket protective earthing pole 13-socket live wire utmost point 14-socket zero line utmost point
15-ground state pilot lamp (green) 16-ground state pilot lamp (red) 17-temperature controller
18-temperature sensor 19-switch 20-temperature indicator
Embodiment
Fig. 1 is the structure principle chart of the embodiment of the invention; as shown in Figure 1: this electric power monitor; comprise voltage table 5; reometer assembly 6; attaching plug 1 and socket 11; two ground state pilot lamp 15 and 16; temperature controller 17 and temperature indicator 20; the protective ground utmost point 2 of described attaching plug 1; the protective ground utmost point 12 of the live wire utmost point 3 and the zero line utmost point 4 and supply socket; the live wire utmost point 13 and 14 corresponding connections of the zero line utmost point; described voltage table 5 and be connected in attaching plug and the socket live wire utmost point and the zero line utmost point between; reometer assembly 6 is serially connected in attaching plug 1 and socket 11 live wires are extremely gone up; the ground protection utmost point 2 is connected a temperature controller 17 with 4 of the zero line utmost points in the described attaching plug 1; described ground state pilot lamp (green) 15 is attempted by between the live wire utmost point and the ground protection utmost point of supply socket; another ground state pilot lamp (red) 16 is serially connected between the supply socket 11 zero line utmost points and the ground protection utmost point; described temperature indicator 20 is connected by switch 19 and temperature controller 17 interior temperature sensors 18; when supply socket 11 is warmed up to temperature controller 17 actions; the energized plug protective ground utmost point 2; by switch 19; temperature sensor 18 in the temperature controller is connected with temperature indicator 20, shows socket 11 soaking conditions.
Describe principle of the present invention in detail in conjunction with Fig. 1 once more.Be provided with the power lead and the attaching plug 1 of single-phase zone protection ground wire on the electric power monitor of this invention maintenance use single phase AC electric device, the standard that the polarity of attaching plug 1 is arranged according to the protection of single-phase zone ground wire is provided with the electrode of the protection ground wire 2 of the protection ground wire energized monitor of monitor power lead; The zero line utmost point 14 of the zero line energized socket of power lead; The live wire of power lead then passes through the live wire utmost point 13 of the reometer assembly 6 back energized sockets 11 of band range protection.When detecting, at first the attaching plug 1 of electric power monitor is inserted in user's the supply socket, wouldn't insert detected appliances power source plug in the socket 11 of electric power monitor.At this moment, suppose that user's supply socket wiring is normal, then have only green indicating lamp 15 to show bright; As live wire and zero line mutual alignment wrong, then red led 16 shows bright; Do not have in user's supply socket under the actual effect ground wire situation, two pilot lamp are equivalent to series connection, then show bright simultaneously.In the testing process of using this electric power monitor, because while display voltage and current value, zero line in user's supply socket (N) and protective ground (E) be wrong mutually, then under the situation of big electric current, is easy to observe out by voltage drop.By the verification and the prompting of electric power monitor,, make user's supply socket wiring be in normal wiring state by maintenance.At this moment, the green indicating lamp of electric power monitor shows bright.
Attaching plug 1 inside of this electric power monitor is provided with temperature controller 17; this temperature controller preestablishes a suitable control temperature; it remains closed when normal temperature; when detected electrical equipment reaches limiting temperature because of the heating of supply socket loose contact or other reason; temperature controller 17 disconnects the protection ground wire, and this moment, red led 16 was apparent bright, and the prompting tester notices that supply socket has temperature rise; and can pass through one group of switch transition 19, make the temperature variation situation of the direct display power supply socket position of monitor.
Ground state pilot lamp 15 and 16 will be selected the pilot lamp of high internal resistance value; such as light emitting diode lamp assembly or neon indicator assembly; the purpose that pilot lamp is chosen high value is to prevent to introduce over the ground electric current, prevents to cause the misoperation of the earth leakage protective device in user's current supply circuit.Such as, adopt neon bulb pilot lamp assembly, its inside generally is serially connected with the current-limiting resistance of 1 megohm.And its starting voltage has only tens volts, under two such pilot lamp serial connection states, insert 220 volts of voltages two pilot lamp are normally lighted, and the electrical equipment that has a motor load generally all has a starting current that is several times as much as running current.For the electric current of observing the operation phase more accurately changes, can and connect a short circuiting switch at the reometer two ends in the embodiment, short circuit current protection table when the start-up course of precognition; Perhaps install delay switch or pressure limiting switch additional, protective current table when the electric current no to scale in the reometer both sides.Can also be the setting of temp control switch during concrete enforcement lower, when the supply socket regional temperature rises slightly, open temperature by switch and show the situation of Direct observation temperature variation.
The electric power monitor of single phase AC electric device is used in this maintenance, and use the different conditions of the pilot lamp of two different colours to show: effectual ground wire and phase place are suitable; Effectual ground wire, but phase place wrong; There are not situations such as actual effect ground wire.By a voltage table, a reometer, synchronous display voltage current conditions, particularly, the reometer gear is arranged on the optimum detection gear by avoiding the mode of starting current transient peak or overcurrent protection.Situation about exceeding standard by the temperature controller display power supply socket temperature rise that is arranged in the attaching plug.
Though the present invention with preferred embodiment openly as above; right its is not in order to limiting the present invention, anyly is familiar with this operator, without departing from the spirit and scope of the invention; when doing a little change and retouching, the change of doing still belongs within the accompanying Claim protection domain of the present invention with retouching.
Claims (5)
1; a kind of electric power monitor that uses single phase AC electric device that overhauls; comprise voltage table (5); attaching plug (1) and socket (11); the first ground state pilot lamp (15); the second ground state pilot lamp (16); temperature indicator (20); the protective ground utmost point of described attaching plug; the protective ground utmost point (12) of the live wire utmost point and the zero line utmost point and supply socket; the live wire utmost point (13) is connected with the zero line utmost point (14) is corresponding; described voltage table (5) and be connected in the live wire utmost point and the zero line utmost point between; it is characterized in that; also comprise the reometer monitoring and protecting device (6) that is serially connected in attaching plug (1) and socket (11) live wire interpolar; be connected a temperature controller (17) between the interior ground protection utmost point of described attaching plug (1) (2) and the zero line utmost point (4); the described first ground state pilot lamp (15) is attempted by between the live wire utmost point (13) and the ground protection utmost point (12) of supply socket; the described second ground state pilot lamp (16) is attempted by the supply socket zero line utmost point (14) and the ground protection utmost point (12); described temperature indicator (20) is connected with temperature controller (17) by switch (19); when supply socket is warmed up to the temperature controller action; the energized plug protective ground utmost point; pass through switch; temperature sensor in the temperature controller and temperature indicator are connected, and show the socket soaking condition.
2, the Power supply detector of single phase AC electric device is used in maintenance according to claim 1; it is characterized in that; described reometer monitoring and protecting device (6) is made of reometer (7), shunt resistance (8); a described reometer two ends protection switch (10) in parallel, short circuit current protection table when the precognition start-up course.
3, the Power supply detector of single phase AC electric device is used in maintenance according to claim 2, it is characterized in that described protection switch (10) is short circuiting switch, delay switch or pressure limiting switch.
4, the Power supply detector of single phase AC electric device is used in maintenance according to claim 1, it is characterized in that the described first ground state pilot lamp (15) that is attempted by between the supply socket live wire utmost point and the ground protection utmost point is selected the green indicating lamp of high value for use.
5, the Power supply detector of single phase AC electric device is used in maintenance according to claim 1, it is characterized in that the described second ground state pilot lamp (16) that is attempted by between the supply socket zero line utmost point and the ground protection utmost point is selected the red led of high value for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101319922A CN100526887C (en) | 2005-12-22 | 2005-12-22 | Electric power monitor for single phase AC electric device inspection and repair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101319922A CN100526887C (en) | 2005-12-22 | 2005-12-22 | Electric power monitor for single phase AC electric device inspection and repair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1987491A CN1987491A (en) | 2007-06-27 |
| CN100526887C true CN100526887C (en) | 2009-08-12 |
Family
ID=38184367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101319922A Active CN100526887C (en) | 2005-12-22 | 2005-12-22 | Electric power monitor for single phase AC electric device inspection and repair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100526887C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202008016970U1 (en) * | 2008-03-23 | 2009-08-20 | Aizo Ag Deutschland | Standard plug with indicator |
| CN103424714A (en) * | 2013-08-23 | 2013-12-04 | 国家电网公司 | Microcomputer protection switching power supply monitoring plug-in device |
| CN104502780A (en) * | 2014-12-27 | 2015-04-08 | 国网宁夏电力公司固原供电公司 | Indoor electric line fault detection device |
| CN105300559A (en) * | 2015-11-23 | 2016-02-03 | 苏州莱测检测科技有限公司 | Plug temperature rise detector |
| CN109946554B (en) * | 2018-11-21 | 2023-10-10 | 杭州可明电子科技有限公司 | Single-phase alternating current grounding real-time detection circuit and detection method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2038284U (en) * | 1988-09-24 | 1989-05-24 | 康平原 | Auto-jump type plug of power supply when overheated |
| CN2152329Y (en) * | 1993-04-27 | 1994-01-05 | 常守全 | Leakage protector |
| CN2258281Y (en) * | 1996-04-02 | 1997-07-23 | 张文生 | Residential electrical equipment detector |
| CN2279714Y (en) * | 1996-11-01 | 1998-04-22 | 李曙光 | Safety grounding power socket with monitoring device |
| CN2283208Y (en) * | 1996-09-05 | 1998-06-03 | 广西南宁玉满堂电热水器厂 | Energy-saving electric water heater |
| CN2353066Y (en) * | 1998-09-21 | 1999-12-08 | 陈俊良 | Safety arrangement for electric power inserting connection component |
| CN2438253Y (en) * | 2000-08-02 | 2001-07-04 | 方炳钧 | Overheat testing protector of power supply circuit and device |
| CN2443505Y (en) * | 2000-11-07 | 2001-08-15 | 温州市万盛电器有限公司 | Grounding failure protection socket with display circuit |
| CN2446552Y (en) * | 2000-10-19 | 2001-09-05 | 海尔集团公司 | Temp controlled mains switching device |
| CN1601824A (en) * | 2004-10-25 | 2005-03-30 | 刘锦泰 | Safety plug having abnormal temp raising alarm |
-
2005
- 2005-12-22 CN CNB2005101319922A patent/CN100526887C/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2038284U (en) * | 1988-09-24 | 1989-05-24 | 康平原 | Auto-jump type plug of power supply when overheated |
| CN2152329Y (en) * | 1993-04-27 | 1994-01-05 | 常守全 | Leakage protector |
| CN2258281Y (en) * | 1996-04-02 | 1997-07-23 | 张文生 | Residential electrical equipment detector |
| CN2283208Y (en) * | 1996-09-05 | 1998-06-03 | 广西南宁玉满堂电热水器厂 | Energy-saving electric water heater |
| CN2279714Y (en) * | 1996-11-01 | 1998-04-22 | 李曙光 | Safety grounding power socket with monitoring device |
| CN2353066Y (en) * | 1998-09-21 | 1999-12-08 | 陈俊良 | Safety arrangement for electric power inserting connection component |
| CN2438253Y (en) * | 2000-08-02 | 2001-07-04 | 方炳钧 | Overheat testing protector of power supply circuit and device |
| CN2446552Y (en) * | 2000-10-19 | 2001-09-05 | 海尔集团公司 | Temp controlled mains switching device |
| CN2443505Y (en) * | 2000-11-07 | 2001-08-15 | 温州市万盛电器有限公司 | Grounding failure protection socket with display circuit |
| CN1601824A (en) * | 2004-10-25 | 2005-03-30 | 刘锦泰 | Safety plug having abnormal temp raising alarm |
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| Publication number | Publication date |
|---|---|
| CN1987491A (en) | 2007-06-27 |
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