CN106370905A - Active watt-hour meter - Google Patents
Active watt-hour meter Download PDFInfo
- Publication number
- CN106370905A CN106370905A CN201610768104.6A CN201610768104A CN106370905A CN 106370905 A CN106370905 A CN 106370905A CN 201610768104 A CN201610768104 A CN 201610768104A CN 106370905 A CN106370905 A CN 106370905A
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- China
- Prior art keywords
- vertical
- phase
- support chip
- electric energy
- power circuit
- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/48—Meters specially adapted for measuring real or reactive components; Meters specially adapted for measuring apparent energy
- G01R11/50—Meters specially adapted for measuring real or reactive components; Meters specially adapted for measuring apparent energy for measuring real component
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Provided is an active watt-hour meter, which comprises a current sensor, which is connected with a three-phase electric power line and is used for carrying out magnitude conversion on a current signal in the three-phase electric power line and outputting a microcurrent signal smaller than the current signal in the three-phase electric power line; and a voltage sensor, which is connected with the three-phase electric power line and is used for carrying out magnitude conversion on a voltage signal in the three-phase electric power line. A support sheet is provided with a plurality of vertical openings for holding vertical connection bars respectively; the vertical connection bars are arranged in the opening respectively; vertical slices connected on the four peripheral edges of the support sheet form an embedded opening; and an embedded column is connected with a cylindrical body embedded in the embedded opening and in interference fit with the vertical slices. The active watt-hour meter effectively prevents the defects of low refrigeration efficiency, danger and humidity increase caused when external fluid invades and easily penetrates into the cabinet, unstable support bench, poor stability, waste of time and energy and frequent shedding of the support sheet and the vertical slices.
Description
Technical field
The present invention relates to electric energy meter technical field, particularly to a kind of active electric energy meter.
Background technology
Electric energy meter is used to measure the instrument of electric energy, also known as kilowatt-hour meter, energy meter, kilowatt-hour table, refers to measure various electricity
The instrument of amount, electric energy meter to be divided by purposes, can be divided into: active electric energy meter, reactive energy-meter, maximum demand meter, standard electric energy
Table, multi tariff time-sharing electric energy meter, prepayment meter (point coin-feed, magnetic card type, electric card type), loss electric energy meter, multi-functional electricity
Can table and intelligent electric energy meter.
Existing active electric energy meter, including current sensor, is connected with three-phase power circuit, for three-phase power circuit
In current signal carry out size conversion, output is with respect to the less micro-current signal of the current signal in three-phase power circuit；
Voltage sensor, is connected with three-phase power circuit, for size conversion is carried out to the voltage signal in three-phase power circuit, output
With respect to the less micro voltage signal of the voltage signal in three-phase power circuit；Anti-aliasing Filter Circuits, respectively with current sense
Device and voltage sensor connect, for anti-aliasing filter process is carried out to the micro-current signal receiving and micro voltage signal, with
Micro-current signal after output process and micro voltage signal；Three-phase electric energy metering equipment, is connected with Anti-aliasing Filter Circuits, is based on
Micro-current signal after process and micro voltage signal determine the active power of each phase and conjunction phase, idle work(in three-phase power circuit
Rate and apparent energy；Rectifying installation, is connected with three-phase power circuit, for being direct current by the AC rectification of three-phase power circuit
Electricity, described current sensor, current sensor, Anti-aliasing Filter Circuits and three-phase electric energy metering equipment are arranged in box, box
Son is arranged in the supporting table being fixed on switch board inwall.
And existing cabinet refrigerating device refrigeration efficiency is low, do not realize real refrigeration demand, heat just cannot be discharged
Have a greatly reduced quality allowing the service behaviour of current sensor, current sensor, Anti-aliasing Filter Circuits and three-phase electric energy metering equipment
And fault rate is high so that the cost of repairs increases；In addition when outside liquid attack, also readily permeable enter cabinet in, cause danger
Danger and the harm of humidity increasing.
But box is attached in supporting table, the structure of this supporting table is generally located on via the support chip of lower end
The vertical lamellar body at support chip two combines, and support chip combines via splicing with vertical lamellar body, then allows via pin rod and props up
Support platform is connected with box, and the supporting table only passing through splicing support chip and vertical lamellar body and constructing is not firm, and stability is not good, just
Then splicing must be repeated, waste time and energy, such usage cycles one are long, support chip and vertical lamellar body are it occur frequently that come off.
Content of the invention
For solving the above problems, the invention provides a kind of active electric energy meter, effectively prevent that refrigerating efficiency is low, outer liquid
During body invasion and attack also readily permeable enter cabinet in cause dangerous and humidity to increase harm, supporting table is not firm, stability is not good, expense
When laborious, support chip and vertical lamellar body it occur frequently that the defect that comes off.
In order to overcome deficiency of the prior art, the invention provides a kind of solution of active electric energy meter, specifically such as
Under:
A kind of active electric energy meter, including current sensor, is connected with three-phase power circuit, in three-phase power circuit
Current signal carry out size conversion, output is with respect to the less micro-current signal of the current signal in three-phase power circuit；Electricity
Pressure sensor, is connected with three-phase power circuit, for the voltage signal in three-phase power circuit is carried out with size conversion, exports phase
The less micro voltage signal for the voltage signal in three-phase power circuit；Anti-aliasing Filter Circuits, respectively with current sensor
Connect with voltage sensor, for anti-aliasing filter process is carried out to the micro-current signal receiving and micro voltage signal, with defeated
Go out the micro-current signal after processing and micro voltage signal；Three-phase electric energy metering equipment, is connected with Anti-aliasing Filter Circuits, based on place
Micro-current signal after reason and micro voltage signal determine the active power of each phase and conjunction phase, reactive power in three-phase power circuit
And apparent energy；Rectifying installation, is connected with three-phase power circuit, for being direct current by the AC rectification of three-phase power circuit
Electricity, described current sensor, current sensor, Anti-aliasing Filter Circuits and three-phase electric energy metering equipment are arranged in box, box
Son is arranged in the supporting table being fixed on switch board inwall；
The accommodating chamber t2 accommodating into mechanism of qi t3 is set up inside the cabinet t1 of described switch board；Set up in described accommodating chamber t3
Into mechanism of qi t3, the lower end of described accommodating chamber t2 has through injection well t4, described injection well t4 is connected with air guide channel t5
Logical, in addition the second sieve tray t7 is arranged on the backing of described injection well t4, in addition the afterbody of described air guide channel t5 is to send
Gas end t6, described aspirating end t6 are arranged in cabinet t1 rear wall, and in addition described aspirating end t6 communicates with inside cabinet t1；Described
Aspirating end t6 sets towards the part t8 of current sensor, current sensor, Anti-aliasing Filter Circuits and three-phase electric energy metering equipment
Put；The top of described cabinet t1 also sets up support chip t9, described support chip t9 has and communicates with inside described accommodating chamber t3
Air inlet t11, described air inlet t11 is also connected with dehumidifier t14, sets up in the more high position of described support chip t9 and contains
Liquid disk t15, described drip pan t15 are middle part domes directed downwardly, and the projection of described support chip t9 in the vertical direction is by institute
The projection stating drip pan t15 in the vertical direction is surrounded；In addition the edge of described drip pan t15 also carries and bends upward
Bending section t16；
Described box 101 is connected with supporting table 102, the support chip 103 containing lower end for the described supporting table 102, described
Vertical lamellar body 104 is connected on blade surrounding, described support chip 103 has some for inserting vertical shape bracing beam 105
Vertical opening 106, insert vertical shape bracing beam 105 in described opening 106, described bracing beam 105 is with opening 106, perpendicular
The joint portion of straight lamellar body 104 is connected through cementation method, the vertical lamellar body 104 that described support chip surrounding connects around and structure
Become interlocking mouth 107, described box 101 contains to be rabbeted into the interlocking post 108 in interlocking mouth 107, and described interlocking post 108 is connected to embedding
Tap in interlocking mouth 107 and the column 109 with vertical lamellar body 104 phase interference fit；
Described support chip 103 is rectangular shape, and described opening 106 is opened in two opposite vertexes of the upper wall of described support chip
Position, described vertical shape bracing beam 105 is cube-shaped piece of stainless steel, and described opening is square shape.
The material of described air guide channel t5 is rubber so that flexible.
Described drip pan t15 with support chip ta9 between carry connection strap t12.
The quantity of described connection strap t12 is more than five.
Such cabinet is led into outer gas stream via entering mechanism of qi t3 towards in cabinet t1, realizes the refrigeration for cabinet t1, system
Cold efficiency is high, improves the part t8 of current sensor, current sensor, Anti-aliasing Filter Circuits and three-phase electric energy metering equipment
Working environment, fault rate is also minimized, and the impurity that in addition the second sieve tray t7 also reduces in outer gas stream enters cabinet
Invasion, described aspirating end t6 is towards current sensor, current sensor, Anti-aliasing Filter Circuits and three-phase electric energy metering equipment
Part t8 setting make to ensure that refrigeration targetedly, further improving refrigerating efficiency, reducing power consumption it is therefore prevented that damaging
Lose, described drip pan t15 is that described support chip t9 realizes isolation and freezes, and also fills external aggression via described drip pan t15
Liquid, improves refrigerating efficiency；Have on described support chip 103 some for inserting the vertical of vertical shape bracing beam 105
Opening 106, described bracing beam 105 is connected through cementation method with the joint portion of opening 106, vertical lamellar body 104, more can improve institute
State the fixing between support chip and vertical lamellar body 104, improve the stability of supporting table, reached and more preferably tieed up in various places
The effect of shield switch board.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation at the cabinet top of the present invention.
Fig. 3 is the cabinet part-structure schematic diagram of the present invention.
Fig. 4 is the attachment structure schematic diagram of supporting table.
Fig. 5 is the decomposition texture schematic diagram of supporting table.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
1- Fig. 5 understands, a kind of active electric energy meter of the present invention, including current sensor, with three-phase power line with reference to the accompanying drawings
Road connects, and for the current signal in three-phase power circuit is carried out with size conversion, output is with respect in three-phase power circuit
Current signal less micro-current signal；Voltage sensor, is connected with three-phase power circuit, in three-phase power circuit
Voltage signal carries out size conversion, and output is with respect to the less micro voltage signal of the voltage signal in three-phase power circuit；Anti- mixed
Folded filter circuit, is connected with current sensor and voltage sensor respectively, for the micro-current signal receiving and micro voltage
Signal carries out anti-aliasing filter process, to export micro-current signal and micro voltage signal after process；Three-phase electric energy metering equipment,
It is connected with Anti-aliasing Filter Circuits, each phase in three-phase power circuit is determined based on the micro-current signal after processing and micro voltage signal
And close active power, reactive power and the apparent energy of phase；Rectifying installation, is connected with three-phase power circuit, for by three-phase
The AC rectification of power circuit is unidirectional current, described current sensor, current sensor, Anti-aliasing Filter Circuits and three-phase electricity
Can measuring equipment be arranged in box, box is arranged in the supporting table being fixed on switch board inwall；
The accommodating chamber t2 accommodating into mechanism of qi t3 is set up inside the cabinet t1 of described switch board；Set up in described accommodating chamber t3
Into mechanism of qi t3, the lower end of described accommodating chamber t2 has through injection well t4, described injection well t4 is connected with air guide channel t5
Logical, in addition the second sieve tray t7 is arranged on the backing of described injection well t4, in addition the afterbody of described air guide channel t5 is to send
Gas end t6, described aspirating end t6 are arranged in cabinet t1 rear wall, and in addition described aspirating end t6 communicates with inside cabinet t1；Described
Aspirating end t6 sets towards the part t8 of current sensor, current sensor, Anti-aliasing Filter Circuits and three-phase electric energy metering equipment
Put, during operation, lead towards in cabinet t1 into outer gas stream via entering mechanism of qi t3, realize the refrigeration for cabinet t1, high cooling efficiency,
Improve the building ring of the part t8 of current sensor, current sensor, Anti-aliasing Filter Circuits and three-phase electric energy metering equipment
Border, fault rate is also minimized, and the impurity that in addition the second sieve tray t7 also reduces in outer gas stream enters the invasion of cabinet, institute
State aspirating end t6 towards the part t8 of current sensor, current sensor, Anti-aliasing Filter Circuits and three-phase electric energy metering equipment
Arranging and make to ensure that refrigeration targetedly, further improves refrigerating efficiency, reducing power consumption it is therefore prevented that losing；Described cabinet
The top of body t1 also sets up support chip t9, described support chip t9 has with the air inlet communicating inside described accommodating chamber t3
T11, described air inlet t11 is also connected with dehumidifier t14, during operation, the air-flow entering is realized removing via dehumidifier t14
Wet, prevent from disturbing the work of the part in cabinet t1, set up drip pan t15 in the more high position of described support chip t9, described
Drip pan t15 is middle part domes directed downwardly, and the projection of described support chip t9 in the vertical direction is existed by described drip pan t15
Projection on vertical direction is surrounded；During operation, described drip pan t15 is that described support chip t9 realizes isolation and freezes, and goes back warp
Filled the liquid of external aggression by described drip pan t15, improve refrigerating efficiency；In addition the edge of described drip pan t15 also carries court
The bending section t16 of top bending, during operation, when the liquid in described drip pan t15 exceedes receiving scope, via bending section t16
Derive；Described drip pan t15 with support chip ta9 between carry connection strap t12, the quantity of described connection strap t12 is more than five.
Such cabinet is led into outer gas stream via entering mechanism of qi t3 towards in cabinet t1, realizes the refrigeration for cabinet t1, system
Cold efficiency is high, improves the part t8 of current sensor, current sensor, Anti-aliasing Filter Circuits and three-phase electric energy metering equipment
Working environment, fault rate is also minimized, and the impurity that in addition the second sieve tray t7 also reduces in outer gas stream enters cabinet
Invasion, described aspirating end t6 is towards current sensor, current sensor, Anti-aliasing Filter Circuits and three-phase electric energy metering equipment
Part t8 setting make to ensure that refrigeration targetedly, further improving refrigerating efficiency, reducing power consumption it is therefore prevented that damaging
Lose, described drip pan t15 is that described support chip t9 realizes isolation and freezes, and also fills external aggression via described drip pan t15
Liquid, improves refrigerating efficiency.
The material of described air guide channel t5 is rubber so that flexible.
Described box 101 is connected with supporting table 102, the support chip 103 containing lower end for the described supporting table 102, described
Vertical lamellar body 104 is connected on blade surrounding, described support chip 103 has some for inserting vertical shape bracing beam 105
Vertical opening 106, insert vertical shape bracing beam 105 in described opening 106, described bracing beam 105 is with opening 106, perpendicular
The joint portion of straight lamellar body 104 is connected through cementation method, the vertical lamellar body 104 that described support chip surrounding connects around and structure
Become interlocking mouth 107, described box 101 contains to be rabbeted into the interlocking post 108 in interlocking mouth 107, and described interlocking post 108 is connected to embedding
Tap in interlocking mouth 107 and the column 109 with vertical lamellar body 104 phase interference fit, this makes it possible to obtain to described support
More preferably firm connection effect between piece and vertical lamellar body 104, improves the stability of supporting table.
Some vertical openings 106 for inserting vertical shape bracing beam 105 are had on described support chip 103, described
Bracing beam 105 is connected through cementation method with the joint portion of opening 106, vertical lamellar body 104, more can improve described support chip and erect
Fixing between straight lamellar body 104.
Described support chip 103 is rectangular shape, and described opening 106 is opened in two opposite vertexes of the upper wall of described support chip
Position, described vertical shape bracing beam 105 is cube-shaped piece of stainless steel, and described opening is square shape.So more can improve
Fixing between described support chip and vertical lamellar body 104.
The span of the vertical direction of described opening 106 is 0.3cm, the horizontal cross span of described vertical shape bracing beam 105
Be 0.6cm, level longitudinal direction span be the span of 0.6cm and vertical direction be 1.1cm, contribute to improving fixing.
In the way of brief description, the present invention is described above, it will be understood by those of skill in the art that the disclosure
It is not limited to embodiments described above, in the case of without departing from the scope of the present invention, can make a variety of changes, change and replace
Change.
Claims (5)
1. a kind of active electric energy meter, it is characterised in that including current sensor, is connected with three-phase power circuit, for three-phase
Current signal in power circuit carries out size conversion, exports micro- electricity less with respect to the current signal in three-phase power circuit
Stream signal；Voltage sensor, is connected with three-phase power circuit, turns for carrying out size to the voltage signal in three-phase power circuit
Change, output is with respect to the less micro voltage signal of the voltage signal in three-phase power circuit；Anti-aliasing Filter Circuits, respectively with electricity
Flow sensor and voltage sensor connect, for carrying out at anti-aliasing filter to the micro-current signal receiving and micro voltage signal
Reason, to export micro-current signal and micro voltage signal after process；Three-phase electric energy metering equipment, with Anti-aliasing Filter Circuits even
Connect, each phase and the wattful power closing phase in three-phase power circuit are determined based on the micro-current signal after processing and micro voltage signal
Rate, reactive power and apparent energy；Rectifying installation, is connected with three-phase power circuit, for by the alternating current of three-phase power circuit
Rectification is unidirectional current, and described current sensor, current sensor, Anti-aliasing Filter Circuits and three-phase electric energy metering equipment are arranged on
In box, box is arranged in the supporting table being fixed on switch board inwall；
The accommodating chamber accommodating into mechanism of qi is set up inside the cabinet of described switch board；Set up mechanism of qi, institute in described accommodating chamber
The lower end stating accommodating chamber has through injection well, and described injection well is connected with air guide channel, in addition in described injection well
Second sieve tray is arranged on backing, in addition the afterbody of described air guide channel is aspirating end, after described aspirating end is arranged on cabinet
On portion's wall, in addition described aspirating end communicates with inside cabinet；Described aspirating end is towards current sensor, current sensor, anti-mixed
The part setting of folded filter circuit and three-phase electric energy metering equipment；The top of described cabinet also sets up support chip, described support
Have with the air inlet communicating inside described accommodating chamber on piece, described air inlet is also connected with dehumidifier, in described support chip
More high position set up drip pan, described drip pan is middle part domes directed downwardly, described support chip in the vertical direction
Projection surrounded by the projection of described drip pan in the vertical direction；In addition the edge of described drip pan is also with curved upward
Bent bending section；
Described box is connected with supporting table, and described supporting table contains the support chip of lower end, and described support chip surrounding connects
Vertical lamellar body, described support chip has some vertical openings for inserting vertical shape bracing beam, in described opening
Insert vertical shape bracing beam, the same opening of described bracing beam, the joint portion of vertical lamellar body are connected through cementation method, described support chip
On surrounding connect vertical lamellar body around and constitute interlocking mouth, described box contains the interlocking post rabbeted in interlocking mouth, institute
State interlocking post to be connected to rabbet in interlocking mouth and the column with vertical piece body phase interference fit；
Described support chip is rectangular shape, and described opening is opened in two opposite vertexes positions of the upper wall of described support chip, described
Vertically shape bracing beam is cube-shaped piece of stainless steel, and described opening is square shape.
2. active electric energy meter according to claim 1 is it is characterised in that the material of described air guide channel is rubber.
3. active electric energy meter according to claim 1 it is characterised in that described drip pan with support chip between carry connection strap.
4. active electric energy meter according to claim 1 is it is characterised in that the quantity of described connection strap is more than five.
5. active electric energy meter according to claim 1 is it is characterised in that the span of the vertical direction of described opening is
0.3cm, the horizontal cross span of described vertical shape bracing beam is 0.6cm, level longitudinal direction span is 0.6cm and vertical direction
Span is 1.1cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768104.6A CN106370905A (en) | 2016-08-29 | 2016-08-29 | Active watt-hour meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768104.6A CN106370905A (en) | 2016-08-29 | 2016-08-29 | Active watt-hour meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106370905A true CN106370905A (en) | 2017-02-01 |
Family
ID=57901672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610768104.6A Pending CN106370905A (en) | 2016-08-29 | 2016-08-29 | Active watt-hour meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106370905A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR890004310B1 (en) * | 1983-11-24 | 1989-10-30 | 미쓰비시전기 주식회사 | Electronic water meter |
| RU2071061C1 (en) * | 1992-06-16 | 1996-12-27 | Акционерное общество "Краснодарский ЗИП" | Electricity meter |
| CN2775996Y (en) * | 2005-03-10 | 2006-04-26 | 京信通信系统（广州）有限公司 | Detachable combined machine case |
| CN102062814A (en) * | 2009-11-16 | 2011-05-18 | 上海安科瑞电气股份有限公司 | ZIGBEE technology-based three-phase guide rail-type installed electric energy meter |
| CN201876492U (en) * | 2010-08-25 | 2011-06-22 | 上海安科瑞电气股份有限公司 | Three-phase multifunctional watt-hour meter installed based on guideway |
| CN105226531A (en) * | 2015-09-25 | 2016-01-06 | 钱国臣 | A kind of can the electric power electric cabinet of Local cooling |
-
2016
- 2016-08-29 CN CN201610768104.6A patent/CN106370905A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR890004310B1 (en) * | 1983-11-24 | 1989-10-30 | 미쓰비시전기 주식회사 | Electronic water meter |
| RU2071061C1 (en) * | 1992-06-16 | 1996-12-27 | Акционерное общество "Краснодарский ЗИП" | Electricity meter |
| CN2775996Y (en) * | 2005-03-10 | 2006-04-26 | 京信通信系统（广州）有限公司 | Detachable combined machine case |
| CN102062814A (en) * | 2009-11-16 | 2011-05-18 | 上海安科瑞电气股份有限公司 | ZIGBEE technology-based three-phase guide rail-type installed electric energy meter |
| CN201876492U (en) * | 2010-08-25 | 2011-06-22 | 上海安科瑞电气股份有限公司 | Three-phase multifunctional watt-hour meter installed based on guideway |
| CN105226531A (en) * | 2015-09-25 | 2016-01-06 | 钱国臣 | A kind of can the electric power electric cabinet of Local cooling |
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Application publication date: 20170201 |