CN102721844A - Intelligent ammeter - Google Patents
Intelligent ammeter Download PDFInfo
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- CN102721844A CN102721844A CN2012101929995A CN201210192999A CN102721844A CN 102721844 A CN102721844 A CN 102721844A CN 2012101929995 A CN2012101929995 A CN 2012101929995A CN 201210192999 A CN201210192999 A CN 201210192999A CN 102721844 A CN102721844 A CN 102721844A
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Abstract
The invention discloses an intelligent ammeter for the field of intelligent power grids. The intelligent ammeter comprises a base, an upper cover and a PCB (printed circuit board), the PCB is positioned between the base and the upper cover, a first lead seal structure and a second lead seal structure which are arrayed in parallel are arranged at the bottom of the base and are made of metal materials, and a binding post is further disposed at the bottom of the base. The intelligent ammeter has the advantage that electricity stealing can be effectively reduced when the intelligent ammeter is used.
Description
Technical field
The present invention relates to a kind of intelligent electric meter that is used for the intelligent grid field.
Background technology
Intelligent electric meter is the visual plant in intelligent grid field; The effect of said intelligent electric meter is electricity consumption user's electricity consumption data are gathered, and can electricity consumption user's electricity consumption data be passed to the master station of system that the electricity consumption user's data passes to intelligent grid through communication channel.
Along with being widely used of intelligent electric meter, also emerge in an endless stream to the measure of opposing electricity-stealing of intelligent electric meter.But, still lagging behind to the measure of opposing electricity-stealing of intelligent electric meter, this hysteresis has caused the heavy losses of national wealth, and therefore ammeter with the function of opposing electricity-stealing of development becomes one of important process in the intelligent grid process of construction.
Summary of the invention
The objective of the invention is provides a kind of intelligent electric meter in order to overcome the deficiency of prior art, and it can effectively reduce the generation of stealing electricity phenomenon.
A kind of technical scheme that realizes above-mentioned purpose is: a kind of intelligent electric meter; Comprise base, loam cake and pcb board; Said pcb board is between said base and loam cake; Be arranged in parallel first lead seal structure and second lead seal structure are set on the said base end face, and said first lead seal structure and said second lead seal structure all are to be processed by metal material, also are provided with binding post on the said base end face.
Further, said binding post is the arrangement of " article " font at said base end face.
Further, liquid crystal display, single-chip microcomputer, high-frequency impulse output module, computation chip, storer and communication interface are set on the said pcb board; Said liquid crystal display places said pcb board towards said loam cake one side, and said single-chip microcomputer, said high-frequency impulse output module, said computation chip and said storer all place said pcb board towards said base one side.
Further again, battery also is set on the said pcb board.
Further, said base and said loam cake all adopt polycarbonate to process, and the inside surface of said base and said loam cake is provided with the coating of nonmagnetic metal.
Further, between said pcb board and the said loam cake nameplate is set, said nameplate is made of plastics.
Further; The both sides of said base are provided with hook.
Adopted the technical scheme of a kind of intelligent electric meter of the present invention, the technical scheme of be arranged in parallel first lead seal structure and second lead seal structure and binding post promptly has been set on the said base end face of said intelligent electric meter.Its technique effect is: can be with the anti-electricity-theft performance that improves said intelligent electric meter.
Description of drawings
Fig. 1 is the front view of a kind of intelligent electric meter of the present invention.
Fig. 2 is the left view of a kind of intelligent electric meter of the present invention.
Fig. 3 is the rear view of a kind of intelligent electric meter of the present invention.
Fig. 4 is the vertical view of a kind of intelligent electric meter of the present invention.
Embodiment
See also Fig. 1 to Fig. 4,, pass through embodiment particularly below, and combine accompanying drawing at length to explain in order to understand technical scheme of the present invention better:
See also Fig. 1 to Fig. 4; In the present embodiment; A kind of intelligent electric meter of the present invention comprises base 1, loam cake 2 and pcb board 3, and be arranged in parallel first lead seal structure 11 and second lead seal structure 12 are set on said base 1 bottom surface; Said first lead seal structure 11 all is to be processed by metal material with said second lead seal structure 12, and said base also is provided with binding post 13 on 1 bottom surface.
In the present embodiment; First lead seal structure 11 and said second lead seal structure 11 are arranged at the two ends up and down of said base end face; Said first lead seal structure 11 is the copper parts that are embedded on said base 1 bottom surface with said second lead seal structure 12; Said binding post 13 is processed by brass, and its effect is that said intelligent electric meter is plugged in the wiring hole on the said table base, and said intelligent electric meter is plugged on the said table base of said ammeter box.Said first lead seal structure 11 and said second lead seal structure 12 respectively with the table base on lead seal structure corresponding.The effect of said first lead seal structure 11 and said second lead seal structure 12 is said intelligent electric meter is fixed on the one hand; In addition on the one hand; Said intelligent electric meter is in the plug process; To there be induction current to flow through the busbar bus in the said table base, thereby cause the ammeter box tripping operation at said table base place, thereby prevent the generation of single electricity consumption user stealing electricity phenomenon.
On the said base end face, said binding post 13 is " article " font to be arranged, and has formed a kind of special force structure like this, has only through special instrument and could pull out the operation of table to single said intelligent electric meter, thereby prevent the generation of stealing electricity phenomenon.
On said base 11 bottom surfaces, said binding post 13 is processed by brass, and said binding post 13 in the watchcase bottom surface, has good flame retardancy and endurance quality through injection moulding after the bakelite one-shot forming.
In addition, the bottom surface of said binding post 13 is socketed with spring steel plate, and said spring steel plate is processed by stainless steel.The purpose of design is like this: strengthen contacting between said binding post 13 and the said table base, strengthen the fastness that said intelligent electric meter is pegged graft on said table base.The surface of said binding post 13 and said spring steel plate all is provided with zinc-plated coating; The effect of said zinc-plated coating is to strengthen the little molten characteristic of utilizing said zinc-plated coating; Fill the bottom surface of binding post 13 and the gap between the said spring steel plate; Further strengthen the fastness that said intelligent electric meter is pegged graft on said table base, improve the accuracy of said intelligent electric meter metering.The bottom surface of said binding post 13 is a cambered surface, has increased the contact area of said binding post 13 between said spring steel plate like this, said intelligent electric meter is inserted table or pulled out in the operating process of table have the feel that stronger plug puts in place.
Simultaneously; Because a kind of intelligent electric meter of the present invention, cancelled ramp and end button cover on traditional downward joint type intelligent electric meter, prevented from said ramp and end button cover the possible of stealing of practising fraud; The size that has reduced said intelligent electric meter simultaneously is from 74 * 126 original * 93mm; Being reduced to 74 * 85 present * 85mm, being convenient to install concentratedly said intelligent electric meter, also is one of important means that prevents at present stealing and install the prime number intelligent electric meter concentratedly.
Said pcb board 3 is built in said intelligent electric meter, promptly the base 1 of said intelligent electric meter and on show to cover between 2, said pcb board 3 can pass through screw retention, also can go up the clamping that table covers between 3 through said base 1 and said and fix.
Said communication interface comprises infrared communication interface (not shown) and RS485 communication interface (not shown); Said infrared communication interface is in order to communicate with infrared copy meter palm machine; Said RS485 communication interface is provided with physical isolation apparatus in order to communicate through RS485 bus and remote control terminal between wherein said RS485 communication interface and the said single-chip microcomputer.
In the present embodiment, on the said power supply power transformer is set, the effect of said power transformer is with the 220V alternating current in the busbar bus; Be transformed into the required low-voltage DC of said intelligent electric meter work, control end and metering end are set on the said power transformer, said control end connects said single-chip microcomputer; Said metering end connects said computation chip; Do not do isolation between said control end and the said metering end,, reduce system cost simultaneously to adapt to the space requirement of intelligent electric meter miniaturization.
Simultaneously, consider, the backlight (not shown) is set on the said pcb board from environmental protection; Can start said spacer assembly through the infrared programming palm machine of checking meter during the energising of said intelligent electric meter, cut off getting in touch between said RS485 communication interface and the said single-chip microcomputer; Trigger said backlight and show that check meter, said backlight extinguishes automatically after 1 minute; Said spacer assembly cuts out, and recloses the RS485 communication interface.When said intelligent electric meter passes through the communication of RS485 communication interface, do not allow to trigger said backlight and show.Just need not light said liquid crystal display in the process of checking meter like this, thereby practice thrift electricity consumption.On the one hand, prevent in addition, attack the possibility of remote control terminal through the infrared communication interface.
Said liquid crystal display 31 places said pcb board towards said loam cake 3 one sides; Said liquid crystal display 31 shows 5 integers of electric weight, 1 decimal; Conceal the 2nd decimal liquid crystal display visible area of the electric weight size 41 * 21mm in the power information of storing in the storer simultaneously; The font size that shows is Chinese character 4 * 6mm, numeral and 5 * 8mm, alphabetical 4x4mm.Said liquid crystal display 31 is liquid crystal of high-contrast, fast, the wide visual angle of response, low-power consumption, and the life-span is more than 10 years.Under-25 ℃ to 70 ℃ conditions, its show state correctly and not influences data to be read, and the visual angle was 6 o'clock, and blank screen when high temperature not occurring, low temperature show slow or do not show phenomenon.Said liquid crystal display 31 adopts metal pin with said pcb board 3 connected modes.
Said single-chip microcomputer, said high-frequency impulse output module, said computation chip and the said pcb board of said storer are towards said base one side; In the present embodiment, in all integrated integration module 32 of said single-chip microcomputer, said high-frequency impulse output module, said computation chip and said storer.The purpose of design is like this: place said pcb board towards said base 1 one sides the key components on the said ammeter with crossing; Prevent that electricity filching person from placing the correct metering that strong magnetic magnet or big coil disturb ammeter near said intelligent electric meter, reach the purpose of stealing.Also the maskable power transformer further improves the accuracy of said intelligent electric meter metering for the electromagnetic interference (EMI) of said single-chip microcomputer, said high-frequency impulse output module, said computation chip and said storer simultaneously.
After said high-frequency impulse output module sends the high-frequency pulse signal of active energy; Measure by the high-frequency pulse signal of said computation chip said active energy; By the meter reading procedure that is built in the said single-chip microcomputer metering of said high-frequency pulse signal is proofreaied and correct again, obtain accurate electricity consumption information about power.
The waveform of the high-frequency pulse signal of said active energy is actual square wave; Pulsewidth is 80ms; Said pulsewidth institute permissible error is ± 20%; 10% of overrate is not answered in the pulse amplitude voltage drop of the high-frequency pulse signal of said active energy, and in the present embodiment, the low level of the high-frequency pulse signal of said active energy output should be not more than 0.9V.Under specified maximum load, can export corresponding umber of pulse immediately.When said intelligent electric meter was non-loaded, pulse output was in low level state.
Said high-frequency impulse output module also has the function of pps pulse per second signal output simultaneously; What said high-frequency impulse output module was exported in the ordinary course of things all is the active energy pulse signal; When said intelligent electric meter is carried out verification; Said intelligent electric meter receives infrared programming and checks meter behind the pulse per second (PPS) output command that palm machine sends, and is converted to the output state of pps pulse per second signal, and said intelligent electric meter is carried out verification; Postpone after 20 minutes, said high-frequency impulse output module is got back to the state of active energy pulse signal output automatically.
Said storer is an erasable formula ROM (read-only memory) (EPPROM), and its information recorded comprises: the record of nearest three P1P2 short circuits, disconnection; Nearest 12 date clocks are revised the forward and backward data with power consumption; The electric weight record that electric weight is revised or resetted forward and backward; Nearest 12 period rates are revised preceding, amended data with power consumption; Electric weight was copied and was seen logarithmic data nearest 3 months 1 day zero point; And incident zero clearing, table number are revised; The record of the incident that the secondary password is revised; Information such as the beginning and ending time of nearest three reverse incidents of power, total degree, total reverse accumulative total electric weight; Also has nearest intelligent electric meter failure message.Said ammeter failure message comprises: the fault of storer, clock chip dead electricity, crystal oscillator failure of oscillation, communication abnormality information, battery low-voltage etc.
For the normal demonstration that guarantees said liquid crystal display and the operate as normal of said storer, also be provided with battery on the said pcb board, battery electric quantity is lower than 30%, and said single-chip microcomputer triggers said intelligent electric meter and reports to the police.
Said base and said loam cake all adopt polycarbonate to process, environmental protection more, and wherein said loam cake is to be processed by transparent polycarbonate.Be convenient to the user and read electricity consumption consumption information, the inside surface of said base 1 and said loam cake 2 is provided with the nonmagnetic metal coating, has shielded external electromagnetic interference (EMI), prevents the generation of stealing electricity phenomenon.In the present embodiment, said coating is the aluminium foil coating.
The both sides of said base 1 are provided with hook 14, are convenient to further said intelligent electric meter is fixed on the table base.Between said pcb board 3 and the said loam cake 2 nameplate 4 is set, said nameplate is made of plastics, to save the consumption of aluminium.
In the present embodiment example, said intelligent electric meter has the function of Pinggu block meter rate, employing be the GB/T15284-2002 standard, rated current is 5A, the maximum current that bears is 40A.User power utilization 1 kilowatt hour, the said high-frequency impulse output module on the said intelligent electric meter has been exported high-frequency pulse signal 3200 times.
Those of ordinary skill in the art will be appreciated that; Above embodiment is used for explaining the present invention; And be not to be used as qualification of the present invention; As long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of the above embodiment.
Claims (7)
1. intelligent electric meter; Comprise base (1), loam cake (2) and pcb board (3); Said pcb board (3) is positioned between said base (1) and the loam cake (2); It is characterized in that: be arranged in parallel first lead seal structure (11) and second lead seal structure (12) are set on said base (1) bottom surface, and said first lead seal structure (11) and said second lead seal structure (12) all are to be processed by metal material, also are provided with binding post (13) on the said base end face.
2. a kind of intelligent electric meter according to claim 1 is characterized in that: said binding post (13) is " article " font and arranges in said base (1) bottom surface.
3. a kind of intelligent electric meter according to claim 1 and 2 is characterized in that: liquid crystal display (31), single-chip microcomputer, high-frequency impulse output module, computation chip, storer and communication interface are set on the said pcb board (3); Said liquid crystal display places said pcb board (3) towards said loam cake (2) one sides, and said single-chip microcomputer, said high-frequency impulse output module, said computation chip and said storer all place said pcb board (3) towards said base (1) one side.
4. a kind of intelligent electric meter according to claim 3 is characterized in that: said pcb board also is provided with battery on (3).
5. a kind of intelligent electric meter according to claim 1 and 2 is characterized in that: said base (1) and said loam cake (2) all adopt polycarbonate to process, and the inside surface of said base (1) and said loam cake (2) is provided with the coating of nonmagnetic metal.
6. a kind of intelligent electric meter according to claim 1 and 2 is characterized in that; Between said pcb board (3) and the said loam cake (2) nameplate (4) is set, said nameplate is made of plastics.
7. a kind of intelligent electric meter according to claim 1 and 2 is characterized in that; The both sides of said base are provided with hook (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101929995A CN102721844A (en) | 2012-06-12 | 2012-06-12 | Intelligent ammeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101929995A CN102721844A (en) | 2012-06-12 | 2012-06-12 | Intelligent ammeter |
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| Publication Number | Publication Date |
|---|---|
| CN102721844A true CN102721844A (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101929995A Pending CN102721844A (en) | 2012-06-12 | 2012-06-12 | Intelligent ammeter |
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| Country | Link |
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| CN (1) | CN102721844A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439746A (en) * | 2013-09-03 | 2013-12-11 | 青岛艾孚科技有限公司 | Electricity meter hook automatic detection device |
| CN110726447A (en) * | 2018-07-17 | 2020-01-24 | 新智数字科技有限公司 | Circuit and method for modifying data and meter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101762728A (en) * | 2008-12-02 | 2010-06-30 | 上海协霖电子有限公司 | Minitype single-phase electronic multi-rate electric energy meter |
| CN202119811U (en) * | 2010-10-09 | 2012-01-18 | 刘义宙 | Miniature intelligent electric energy meter |
| CN202710631U (en) * | 2012-06-12 | 2013-01-30 | 上海市电力公司 | Intelligent ammeter |
-
2012
- 2012-06-12 CN CN2012101929995A patent/CN102721844A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101762728A (en) * | 2008-12-02 | 2010-06-30 | 上海协霖电子有限公司 | Minitype single-phase electronic multi-rate electric energy meter |
| CN202119811U (en) * | 2010-10-09 | 2012-01-18 | 刘义宙 | Miniature intelligent electric energy meter |
| CN202710631U (en) * | 2012-06-12 | 2013-01-30 | 上海市电力公司 | Intelligent ammeter |
Non-Patent Citations (1)
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| 江宇红: "单相费控智能电能表的原理及应用", 《计量与测试技术》, vol. 38, no. 5, 31 December 2011 (2011-12-31) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439746A (en) * | 2013-09-03 | 2013-12-11 | 青岛艾孚科技有限公司 | Electricity meter hook automatic detection device |
| CN110726447A (en) * | 2018-07-17 | 2020-01-24 | 新智数字科技有限公司 | Circuit and method for modifying data and meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20121012 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121012 Address after: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant after: Shanghai Electric Power Corporation Applicant after: State Grid Corporation of China Address before: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant before: Shanghai Electric Power Corporation |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121010 |