CN101634664B - Electric energy meter - Google Patents
Electric energy meter Download PDFInfo
- Publication number
- CN101634664B CN101634664B CN2009101021786A CN200910102178A CN101634664B CN 101634664 B CN101634664 B CN 101634664B CN 2009101021786 A CN2009101021786 A CN 2009101021786A CN 200910102178 A CN200910102178 A CN 200910102178A CN 101634664 B CN101634664 B CN 101634664B
- Authority
- CN
- China
- Prior art keywords
- load
- power lead
- sensor
- electric energy
- energy meter
- 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.)
- Expired - Fee Related
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
- G01R22/065—Details of electronic electricity meters related to mechanical aspects
Abstract
The invention relates to an electric energy meter comprising a body shell (1), a sensor, an electronic measuring circuit (3), a display element (4) and a wiring board. The electric energy meter is characterized in that the wiring board comprises a hollow cylinder (21) and a fixed screw (22), wherein the hollow cylinder (21) is used for a power cord (5) passing by a load to penetrate through; and the fixed screw (22) penetrates through the hollow cylinder (21) for fixing the power cord (5) passing by the load; the sensor comprises a current sensor (6) and a screw (7); the current sensor (6) is arranged outside the body shell (1) for measuring the current of the power cord (5) passing by the load; the output end of the current sensor (6) is electrically connected with the electronic measuring circuit (3) by a wire; and the screw (7) penetrates through the hollow cylinder (21), pierces into the power cord (5) passing by the load for measuring the voltage of the power cord (5) passing by the load and is electrically connected with the electronic measuring circuit (3). The electric energy meter does not need to cut off the power cord (5) passing by the load when the consumption energy of the load is measured.
Description
Technical field
The present invention relates to a kind of electric energy meter, particularly relate to the configuration of the sensor device of voltage on the power lead that is used to measure the load of flowing through in the electric energy meter and/or current signal.
Background technology
Electric energy meter is in order to measuring the instrument of power consumption, therefore, thereby it generally comprise is connected with the power lead of the load of flowing through or interactive sensor, the signal by the sensor generation to carry out the catabiotic electronic measurement circuit that various calculating obtain load.
Usually, these sensors are positioned at the electric energy meter enclosure interior, utilize a special terminal block to link to each other then with sensor in the electric energy meter housing, this special terminal block is used for fixing the power lead of the load of flowing through, also play the effect that reception and transport stream are crossed the power supply on the power lead simultaneously, shown in accompanying drawing 1, sensor 114, electronic measurement circuit 116 and display element 118 all are arranged on electric energy meter housing 100 inside, power lead 110 is connected with sensor 114 by a terminal block 112, this electric energy meter is when the consumed energy of sensing lead, need to cut off the power lead 110 of the load of flowing through, use screw usually respectively, terminal firmware is connected to power lead 110 end points in the terminal block 112.
Therefore, this process is through following link: the line 110 of cutting off the electricity supply, cut insulated hull from power lead 110 connector lugs, power lead 110 joints inserted in the shell of terminal block 112, tighten the screw of terminal to strengthen the wiring of fixed power source line.
This process can increase installation cost and bring risk:
If the power lead connector lug can not successfully be linked in the terminal block, will produce heat, cause electric quantity loss, this means that the consumer will bear consequent economic loss expense; Short circuit and the blast intrinsic risk will work the mischief to the government utility or the public.
On the other hand, every kind of electric energy meter all to dispose different terminal blocks with the supporting different element (comprising terminal block shell and screw etc.) of terminal block, this that is to say that manufacturer is necessary for the element of every type electric energy meter production different model; This can increase takes inventory size, prolongs manufacturing time.
Therefore, press for the cost that a kind of method is made in order to the minimizing electric energy meter, and then do not need electric energy meter custom mold, adopt specific manufacturing technology for every type; Need to give the installation of electric energy meter and the risk of operation to reduce the quantity of labour force, to reduce.
Summary of the invention
When being the sensing lead consumed energy, technical matters to be solved by this invention do not need to cut off the electric energy meter of the power lead of the load of flowing through.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: this electric energy meter comprises
The body housing;
Sensor is used to measure the voltage and current signal of flowing through on the power lead of load;
Electronic measurement circuit is arranged in the described body housing, utilizes the voltage and current signal on the power lead of the load of flowing through of described sensor measurement, determines and the consumed energy of sensing lead;
Display element is arranged in the described body housing, links to each other with described electronic measurement circuit, is used for showing that electronic measurement circuit is determined and the consumed energy value of the load of measurement;
One terminal block is arranged on described body casing external body, is used for fixing the power lead of the load of flowing through;
It is characterized in that: described terminal block comprises
The hollow cylinder that the power lead of the described load of flowing through of one confession passes;
One fixed screw, this fixed screw penetrate described hollow cylinder, in order to the power lead of the fixing described load of flowing through;
Described sensor comprises
One current sensor, it is external to be arranged on described body casing, is used to measure the electric current of flowing through on the power lead of load, and the output terminal of this current sensor is electrically connected with described electronic measurement circuit by electric wire;
One screw, this screw penetrate described hollow cylinder and thrust in the power lead of the described load of flowing through, and in order to flow through voltage on the power lead of load of measurement, this screw is electrically connected with described electronic measurement circuit by electric wire.
Like this, in the time of sensing lead catabiotic, the power lead of load passes the hollow cylinder of terminal block as long as will flow through, fix with fixed screw then, just can measure the voltage and current signal that flows through on the power lead of the load of flowing through by current sensor and screw, computing by electronic measurement circuit, just can measure the energy of load consumption, do not need to cut off the power lead of the load of flowing through, do not need to cut insulated hull from the power lead connector lug yet, do not need to reach and the supporting different element (terminal block shell and screw) of terminal block yet, reduced the production cost of electric energy meter for every kind of dissimilar electric energy meter all will dispose different terminal blocks.
As improvement, described sensor and described terminal block all are arranged on a terminals enclosure interior, and described terminals housing and described body housing connect into an integral body.
Improve, described terminals housing comprises a box-like base support, an intermediate support again, and described sensor and described hollow cylinder are fixed on the described intermediate support, and described intermediate support then is fixed on the described base support.
Improve, described terminals housing also comprises lid support again, the intermediate support fixing seal that this lid support is used for being fixed with described sensor and described hollow cylinder in box-like base support, thereby described sensor and described body housing are completely cut off.
At last, described body housing comprises upper shell and lower house, and described upper shell and described lower house are integral by ultrasonic soldering.
Compared with prior art, the invention has the advantages that: when the consumed energy of sensing lead, do not need to cut off the power lead of the load of flowing through, do not need to cut insulated hull from the power lead connector lug yet, do not need to reach and the supporting different element (terminal block shell and screw) of terminal block yet, reduced the production cost of electric energy meter for every kind of dissimilar electric energy meter all will dispose different terminal blocks.
Description of drawings
Fig. 1 is the connection diagram of electric energy meter and power lead in the prior art;
Fig. 2 is the mounting means diagrammatic sketch of electric energy meter and power lead in the embodiment of the invention;
Fig. 3 passes the synoptic diagram of connecting interface for power lead in the embodiment of the invention;
Fig. 4 is the structural representation of electric energy meter in the embodiment of the invention;
Fig. 5 is the explosive view of electric energy meter in the embodiment of the invention;
Fig. 6 is the upper shell structural representation of electric energy meter housing in the embodiment of the invention;
Fig. 7 is the lower house structural representation of electric energy meter housing in the embodiment of the invention;
Fig. 8 is the connection layout between the box-like base support of the lower house of electric energy meter housing in the embodiment of the invention and terminals housing.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Electric energy meter shown in Fig. 2～5 comprises the body housing 1 and the hollow box-like terminals housing 2 of hollow cylindrical, and body housing 1 and terminals housing 2 all adopt plastics to make, and terminals housing 2 is connected in aggregates with body housing 1; Body housing 1 inside is provided with electronic measurement circuit 3 and display element 4; Be provided with sensor and terminal block in the terminals housing 2; Wherein sensor is used to measure the voltage and current signal of flowing through on the power lead 5 of load; Voltage and current signal on the power lead 5 of the load of flowing through of electronic measurement circuit 3 by utilizing sensor measurement determines and the consumed energy of sensing lead that electronic measurement circuit 3 can adopt existing routine techniques, makes one or more circuit boards; Display element 4 links to each other with electronic surveying 3 circuit, is used for showing that electronic measurement circuit is determined and the consumed energy value of the load of measurement.
Terminal block comprises the hollow cylinder 21 that the power lead 5 of the described load of flowing through of a confession passes; One fixed screw 22 and various retaining element, this fixed screw 22 penetrate described hollow cylinder 21, in order to the power lead 5 of the fixing described load of flowing through, shown in Fig. 3,5; And described sensor comprises a current sensor 6, is arranged on outside the described hollow cylinder 21, is used to measure the electric current of flowing through on the power lead 5 of load, and the output terminal of this current sensor 6 is electrically connected with described electronic measurement circuit 3 by electric wire; One screw 7, this screw 7 penetrate described hollow cylinder 21 and thrust in the power lead 5 of the described load of flowing through, and in order to flow through voltage on the power lead 5 of load of measurement, this screw 7 is electrically connected with described electronic measurement circuit by electric wire, shown in Fig. 3,4.
Terminals housing 2 comprises a box-like base support 23, an intermediate support 24, a lid support 25, described current sensor 6, described screw 7, hollow cylinder 21, fixed screw 22 all are fixed on the described intermediate support 24 by fixing, described intermediate support 24 then is fixed on the described base support 23, intermediate support 24 fixing seals that lid support 25 is used for being fixed with current sensor 6, screw 7, hollow cylinder 21, fixed screw 22 and various retaining elements are in box-like base support 23, thereby described sensor and the described body housing 1 of making completely cuts off.Two sides of box-like base support 23 are provided with and the hollow cylinder 21 corresponding confessions through hole that the power lead 5 of load passes of flowing through.
Claims (5)
1. an electric energy meter comprises
Body housing (1);
Sensor is used to measure the voltage and current signal of flowing through on the power lead (5) of load;
Electronic measurement circuit (3) is arranged in the described body housing (1), utilizes the voltage and current signal on the power lead (5) of the load of flowing through of described sensor measurement, determines and the consumed energy of sensing lead;
Display element (4) is arranged in the described body housing (1), links to each other with described electronic measurement circuit (3), is used for showing that electronic measurement circuit is determined and the consumed energy value of the load of measurement;
One terminal block is arranged on described body housing (1) outside, is used for fixing the power lead (5) of the load of flowing through;
It is characterized in that: described terminal block comprises
The hollow cylinder (21) that the power lead (5) of the described load of flowing through of one confession passes;
One fixed screw (22), this fixed screw (22) penetrate described hollow cylinder (21), in order to the power lead (5) of the fixing described load of flowing through;
Described sensor comprises
One current sensor (6) is arranged on outside the described body housing (1), is used to measure the electric current of flowing through on the power lead (5) of load, and the output terminal of this current sensor (6) is electrically connected with described electronic measurement circuit (3) by electric wire;
One screw (7), this screw penetrate described hollow cylinder (21) and thrust in the power lead (5) of the described load of flowing through, and in order to flow through voltage on the power lead (5) of load of measurement, this screw (7) is electrically connected with described electronic measurement circuit (3) by electric wire.
2. electric energy meter according to claim 1 is characterized in that: described sensor and described terminal block all are arranged on terminals housing (a 2) inside, and described terminals housing (2) is connected in aggregates with described body housing (1).
3. electric energy meter according to claim 2, it is characterized in that: described terminals housing (2) comprises a box-like base support (23), an intermediate support (24), described sensor and described hollow cylinder (21) are fixed on the described intermediate support, and described intermediate support then is fixed on the described base support.
4. electric energy meter according to claim 3, it is characterized in that: described terminals housing (2) also comprises lid support (25), intermediate support (24) fixing seal that this lid support (25) is used for being fixed with described sensor and described hollow cylinder (21) in box-like base support (23), thereby make described sensor and described body housing (1) isolated.
5. electric energy meter according to claim 1 is characterized in that: described body housing (1) comprises upper shell and lower house, and described upper shell and described lower house are integral by ultrasonic soldering.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101021786A CN101634664B (en) | 2009-08-18 | 2009-08-18 | Electric energy meter |
| PCT/CN2010/075862 WO2011020416A1 (en) | 2009-08-18 | 2010-08-10 | Electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101021786A CN101634664B (en) | 2009-08-18 | 2009-08-18 | Electric energy meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101634664A CN101634664A (en) | 2010-01-27 |
| CN101634664B true CN101634664B (en) | 2011-06-29 |
Family
ID=41593919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101021786A Expired - Fee Related CN101634664B (en) | 2009-08-18 | 2009-08-18 | Electric energy meter |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101634664B (en) |
| WO (1) | WO2011020416A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9455564B2 (en) * | 2014-02-21 | 2016-09-27 | General Electric Company | Current and voltage module and methods of monitoring current and voltage in power distribution systems |
| WO2017160254A1 (en) * | 2016-03-15 | 2017-09-21 | Luna Elektrik Elektronik Sanayi Ve Ticaret A. S. | Electric meter and/or electric measuring instrument without connection terminals comprising cable passage |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0607438A1 (en) * | 1991-09-10 | 1994-07-27 | Smc Kabushiki Kaisha | Switch device and its wiring structure |
| CN2348401Y (en) * | 1998-08-10 | 1999-11-10 | 上海大华测控设备公司 | Single-phase prepayment safety electric energy meter |
| US7106044B1 (en) * | 2005-08-02 | 2006-09-12 | General Electric Company | Systems, methods, and apparatuses for detecting residential electricity theft in firmware |
| CN1971290A (en) * | 2006-12-05 | 2007-05-30 | 淄博计保互感器研究所 | Method for measuring high voltage by current method and its device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5426360A (en) * | 1994-02-17 | 1995-06-20 | Niagara Mohawk Power Corporation | Secondary electrical power line parameter monitoring apparatus and system |
| US5548523A (en) * | 1994-06-20 | 1996-08-20 | Eaton Corporation | Monitoring device secured to power distribution system conductors |
| IES20000075A2 (en) * | 1999-01-29 | 2001-02-21 | Suparules Ltd | Electrical energy meter |
| CN2594797Y (en) * | 2002-12-31 | 2003-12-24 | 马洪祥 | Penetrative sensing kilowatt-hour meter |
| CN201210162Y (en) * | 2008-06-12 | 2009-03-18 | 武汉盛帆电子股份有限公司 | Electrical energy meter having contactless structure on zero line |
-
2009
- 2009-08-18 CN CN2009101021786A patent/CN101634664B/en not_active Expired - Fee Related
-
2010
- 2010-08-10 WO PCT/CN2010/075862 patent/WO2011020416A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0607438A1 (en) * | 1991-09-10 | 1994-07-27 | Smc Kabushiki Kaisha | Switch device and its wiring structure |
| CN2348401Y (en) * | 1998-08-10 | 1999-11-10 | 上海大华测控设备公司 | Single-phase prepayment safety electric energy meter |
| US7106044B1 (en) * | 2005-08-02 | 2006-09-12 | General Electric Company | Systems, methods, and apparatuses for detecting residential electricity theft in firmware |
| CN1971290A (en) * | 2006-12-05 | 2007-05-30 | 淄博计保互感器研究所 | Method for measuring high voltage by current method and its device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101634664A (en) | 2010-01-27 |
| WO2011020416A1 (en) | 2011-02-24 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20160818 |
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| CF01 | Termination of patent right due to non-payment of annual fee |