CN100416278C - Novel digital/analog double display AC electric meter - Google Patents
Novel digital/analog double display AC electric meter Download PDFInfo
- Publication number
- CN100416278C CN100416278C CNB011215364A CN01121536A CN100416278C CN 100416278 C CN100416278 C CN 100416278C CN B011215364 A CNB011215364 A CN B011215364A CN 01121536 A CN01121536 A CN 01121536A CN 100416278 C CN100416278 C CN 100416278C
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- display unit
- meter
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- circuit
- electric meter
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- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 4
- 238000004088 simulation Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The present invention discloses a novel AC current meter with digital-analog double display, which comprises a casing body, a display unit, an input unit and a converting module, wherein the display unit is composed of a digital display unit and a pointer display unit. The converting module is composed of a magnetic core, a coil, a converting circuit and a metallic shield cover. The meter has inner resistance and inner inductance which are both approximately zero, so the meter consumes no power when connected to a circuit. Thus, the original state of the circuit is not changed, and measurement errors are consistent with basic errors. The meter also has strong overload capacity, and can become a quasi ideal-type instrument. The present invention has the advantages of small investment, quick implement and high technology involved, and thus, can be applied to mass production conveniently.
Description
The present invention relates to a kind of instrument, particularly a kind of novel digital/analog double display AC electric meter.
Alternating current ammeter only allows to transship 20% at present, surpasses 20% instrument and just may damage.In order not to be damaged, generally adopt overcurrent protection, when overload surpasses 20%, to cut off the electricity supply automatically and protect, overload is eliminated and is restarted power supply.Wretched insufficiency part of alternating current ammeter is its internal resistance at present in addition, and internal inductance is all bigger, and place in circuit will change the circuit virgin state, so measuring error is often much bigger than fundamental error.
The objective of the invention is to provide a kind of novel digital/analog double display AC electric meter big, that measuring error is consistent with fundamental error that allows to transship for the deficiency that solves above-mentioned technology.
In order to achieve the above object, the novel digital/analog double display AC electric meter that the present invention is designed, it comprises housing, display unit, input block and modular converter, it is characterized in that described display unit is made up of digital display unit and pointer display unit, digital display unit links to each other with modular converter respectively with the pointer display unit, this modular converter is made up of the spacious cover of magnetic core, coil, change-over circuit and metal screen, coil is located at outside the magnetic core and with change-over circuit and links to each other, the spacious cover of metal screen is enclosed in outside the change-over circuit, and this change-over circuit is close to zero impedance transformation.Novel digital/analog double display AC electric meter of the present invention, at the alternating current input end, the ac current signal of input one the tunnel enters the simulation table and carries out pointer indication after module processing, and another road enters digitizing tablet and carries out numeral demonstration.
The resulting novel digital/analog double display AC electric meter of the present invention allows overload to reach two and does ampere, the momentary current impact is about to this instrument incoming transport 220V and does not damage, its pointer returns zero gradually along with energy discharges, numeral shows certain numerical value arbitrarily, and do not cut off the electricity supply, overload is eliminated and is recovered automatically to measure.Resistance, internal inductance approach zero (interior resistance≤0.1 ohm) in this instrument, internal inductance≤0.1 milihenry), place in circuit is consumed energy not, does not change the circuit virgin state, and measuring error is consistent with fundamental error.The innovation regeneration product substitutes present conventional AC reometer.
Adopt the technology of the present invention, traditional alternating current ammeter is updated, having the not available distinct advantages of traditional alternating current ammeter promptly has strong overload capacity and becomes to be as the criterion the ideal type instrument, so have small investment, fast implementation, high in technological content characteristics can be carried out production in enormous quantities easily, have great market and commercial value.
Fig. 1 is the system chart of the novel digital/analog double display AC electric meter behind employing the present invention;
Fig. 2 is the structural representation of modular converter.
The invention will be further described below in conjunction with accompanying drawing and by embodiment:
Embodiment 1:
As shown in Figure 1, the novel digital/analog double display AC electric meter that present embodiment provided, it comprises housing 1, display unit 2, input block 3 and modular converter 4, it is characterized in that described display unit 2 is made up of digital display unit 5 and pointer display unit 6, digital display unit 5 links to each other with modular converter 4 respectively with pointer display unit 6, as shown in Figure 2, this modular converter 4 is made up of the spacious cover 10 of magnetic core 7, coil 8, change-over circuit 9 and metal screen, coil 8 is located at outside the magnetic core 7 and with change-over circuit 9 and links to each other, and the spacious cover 10 of metal screen is enclosed in outside the change-over circuit 7.Alternating current is imported through input end, enter modular converter 4 again and carry out signal Processing, make it to become interior resistance, internal inductance approaches zero-sum and has strong overload capacity, one tunnel ammeter that enters simulation carries out pointer and shows that another road enters digital panel meter and carries out numeral demonstration then.Because simulation indication and numeral show all in the modular converter back, so this two part has all obtained protection.So traditional alternating voltage master meter, ac power meter etc. all can adopt the technology of the present invention, make it to become to be as the criterion the ideal type instrument, innovate.
Claims (1)
1. digital/analog double display AC electric meter, it comprises housing (1), display unit (2), input block (3) and modular converter (4), it is characterized in that described display unit (2) is made up of digital display unit (5) and pointer display unit (6), digital display unit (5) links to each other with modular converter (4) respectively with pointer display unit (6), modular converter (4) is by magnetic core (7), coil (8), change-over circuit (9) and metallic shield (10) are formed, coil (8) is located at outside the magnetic core (7) and with change-over circuit (9) and links to each other, and metallic shield (10) is enclosed in outside the change-over circuit (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011215364A CN100416278C (en) | 2001-06-20 | 2001-06-20 | Novel digital/analog double display AC electric meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011215364A CN100416278C (en) | 2001-06-20 | 2001-06-20 | Novel digital/analog double display AC electric meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1392417A CN1392417A (en) | 2003-01-22 |
| CN100416278C true CN100416278C (en) | 2008-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011215364A Expired - Fee Related CN100416278C (en) | 2001-06-20 | 2001-06-20 | Novel digital/analog double display AC electric meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100416278C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666821B (en) * | 2009-09-25 | 2012-08-01 | 余瑶 | Multifunctional and intelligent alternating current meter |
| CN102628882A (en) * | 2012-04-06 | 2012-08-08 | 江苏科技大学 | Multifunctional meter with voice broadcasting and digital/analog dual displaying functions |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4106095A (en) * | 1977-05-31 | 1978-08-08 | Electronic Data Systems, Inc. | Electrical usage display system |
| CN1013307B (en) * | 1989-01-09 | 1991-07-24 | 吕铀 | Method for instantaneously measuring a.c. quantity of electricity and device thereof |
| CN2159026Y (en) * | 1993-02-16 | 1994-03-16 | 厦门大学 | Liquid crystal numerical AC current meter |
| CN2167376Y (en) * | 1993-08-17 | 1994-06-01 | 肇庆市电子技术研究所 | Digital displaying ac electricity current meter |
| CN2325781Y (en) * | 1998-04-14 | 1999-06-23 | 丁金亮 | Digital voltmeler meter and galvano-meter |
| CN2493939Y (en) * | 2001-06-20 | 2002-05-29 | 陈丽黄 | Digital-modulo double-indication ac current meter |
-
2001
- 2001-06-20 CN CNB011215364A patent/CN100416278C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4106095A (en) * | 1977-05-31 | 1978-08-08 | Electronic Data Systems, Inc. | Electrical usage display system |
| CN1013307B (en) * | 1989-01-09 | 1991-07-24 | 吕铀 | Method for instantaneously measuring a.c. quantity of electricity and device thereof |
| CN2159026Y (en) * | 1993-02-16 | 1994-03-16 | 厦门大学 | Liquid crystal numerical AC current meter |
| CN2167376Y (en) * | 1993-08-17 | 1994-06-01 | 肇庆市电子技术研究所 | Digital displaying ac electricity current meter |
| CN2325781Y (en) * | 1998-04-14 | 1999-06-23 | 丁金亮 | Digital voltmeler meter and galvano-meter |
| CN2493939Y (en) * | 2001-06-20 | 2002-05-29 | 陈丽黄 | Digital-modulo double-indication ac current meter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1392417A (en) | 2003-01-22 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Gaozi Complete Plant Co., Ltd. Assignor: Chen Lihuang Contract fulfillment period: 2009.2.6 to 2021.6.19 contract change Contract record no.: 2009330000398 Denomination of invention: Novel digital/analog double display AC electric meter Granted publication date: 20080903 License type: Exclusive license Record date: 2009.2.27 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.2.6 TO 2021.6.19; CHANGE OF CONTRACT Name of requester: ZHEJIANG GAOZI COMPLETE PLANT CO.,LTD. Effective date: 20090227 |
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Owner name: ZHEJIANG GAOZI COMPLETE PLANT CO.,LTD. Free format text: FORMER OWNER: CHEN LIHUANG Effective date: 20090911 |
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Effective date of registration: 20090911 Address after: Hangzhou City, Zhejiang Province, Binjiang District Binhu road 1180 Huaye hi tech Park 6 Building 5 floor Patentee after: Zhejiang Gaozi Complete Plant Co., Ltd. Address before: Room 21, No. 301, Temple Lane, Hangzhou, Zhejiang Patentee before: Chen Lihuang |
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| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Zhejiang Gaozi Complete Plant Co., Ltd. Assignor: Chen Lihuang Contract record no.: 2009330000398 Date of cancellation: 20150610 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080903 Termination date: 20170620 |
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| CF01 | Termination of patent right due to non-payment of annual fee |