CN201562009U - Universal panel type digital alternating current voltmeter - Google Patents
Universal panel type digital alternating current voltmeter Download PDFInfo
- Publication number
- CN201562009U CN201562009U CN2009202595389U CN200920259538U CN201562009U CN 201562009 U CN201562009 U CN 201562009U CN 2009202595389 U CN2009202595389 U CN 2009202595389U CN 200920259538 U CN200920259538 U CN 200920259538U CN 201562009 U CN201562009 U CN 201562009U
- Authority
- CN
- China
- Prior art keywords
- cover frame
- panel
- surface plate
- micro
- plate formula
- 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
Links
Images
Landscapes
- Control Of Stepping Motors (AREA)
Abstract
The utility model discloses a universal panel type digital alternating current voltmeter, which comprises a panel cover frame, a scale panel, a digital dial gauge, an indicator, an intermediate frame, a bottom cover, an alternating current voltage input terminal, a miniature stepping motor and a special control module. The universal panel type digital alternating current voltmeter is mainly characterized in that the panel cover frame, the intermediate frame and the bottom cover are in square structures, a middle opening of the panel cover frame is in the shape of an in-equilateral pentagon, the panel cover frame is connected with the intermediate frame, the intermediate frame is connected with the bottom cover, the alternating current digital dial gauge is engraved on the scale panel, a hollow cylindrical step is arranged on the inner side of the panel cover frame, the miniature stepping motor is embedded in the step, the indicator is driven by a driving shaft of the miniature stepping motor, the miniature stepping motor is controlled by the special control module, and a DB9 chip connector capable of directly realizing communication with an upper computer is disposed on the bottom cover. The universal panel type digital alternating current voltmeter is high in measuring precision, long in service life and good in reliability, and is adaptable to the application in medium and high end energy management systems and industrial control fields.
Description
Technical field
The utility model relates to a kind of universal surface plate formula Digital AC voltage table.
Background technology
Known A.C. voltmeter is mainly used to measure power frequency ac voltage, generally be to embed the outside surface that is installed in electrical control cabinet, two kinds of simulated pointer formula and digital display types are arranged, wherein, it is control assembly that digital display type adopts single-chip microcomputer, after the ac voltage signal of input calculated and handle, show by high brightness charactron LED or liquid crystal display LCD.The simulated pointer formula adopts the magneto-electric principle to drive its pointer, be that point gear produces ampere moment under two current-carrying coils interact, after this moment overcomes the torsional moment of damped parts such as hairspring spring, push pointer deflection, the suffered torsional moment of the size of its needle deflection angle and point gear is relevant, and torsional moment is by the size decision by coil current, but, point gear is subjected to material especially easily, environment temperature, humidity, influence of various factors such as manufacturing process, cause having than mistake, and fragile damped parts such as hairspring damage especially easily, and reliability is not high.
Summary of the invention
The purpose of this utility model has provided a kind of universal surface plate formula Digital AC voltage table that is installed in the electrical control cabinet surface that embeds, it is core control part that this table adopts special-purpose control module, drive pointer with micro-step motor, adopt the displaying scheme of LED/LCDD and the drive scheme of magneto-electric principle thereby abandoned fully, realize the digitized measurement and the indication of digitizing pointer of power frequency ac voltage.
The utility model is achieved in that
A kind of universal surface plate formula Digital AC voltage table, comprise: cover frame, scale panel, pointer, center, bottom, micro-step motor, special-purpose control module, its main points are, engraved the ac digital graduation apparatus on the scale panel, there is a hollow cylinder step that stretches out the inboard of cover frame, a micro-step motor is installed in the step, and pointer is driven by the driving shaft of micro-step motor.
Described universal surface plate formula Digital AC voltage table, its cover frame, center and bottom are square structure, and the middle opening of cover frame is shaped as a unequal-sided pentagon, and the cover frame links to each other with center, and center links to each other with bottom more then.
Described universal surface plate formula Digital AC voltage table, its scale panel is a square panel, engrave an ac digital graduation apparatus that is 90 ° arc shape on the scale panel, all scales on the graduation apparatus all are uniform, the position of scale panel and is fixed on the inboard of cover frame by the screw hole of four jiaos of scale panels between cover frame and center.
Described universal surface plate formula Digital AC voltage table, it is hollow cylindrical step that a centre is arranged in the inboard of cover frame, micro-step motor embedding with single rotation axis is installed in the hollow cylindrical step, and its micro-step motor is controlled by special-purpose control module.
Described universal surface plate formula Digital AC voltage table, pointer are between cover frame and scale panel, and an end of pointer passes on the rotation axis that the scale panel directly inserts micro-step motor, drive its deflection by the rotation axis of micro-step motor.
Described universal surface plate formula Digital AC voltage table has a DB9 core connector that is used for RS-485 communication on the bottom.
Described universal surface plate formula Digital AC voltage table also has two screw-tightened terminals that are used for the alternating voltage input on the bottom.
Described universal surface plate formula Digital AC voltage table, built-in single-chip microcomputer of its special-purpose control module and stepper motor micro-stepping sub-driver circuit.
Described universal surface plate formula Digital AC voltage table, its voltage input signal is introduced from two input terminals, behind rectification circuit and potential-divider network, one tunnel entering signal modulate circuit, send the A/D end of the built-in single-chip microcomputer of special-purpose control module again, the charge pump feed circuit are sent on another road, and the charge pump feed circuit link to each other with the power port of special-purpose control module.
Described universal surface plate formula Digital AC voltage table, the framework folder that installs and fixes of its instrument is made up of galvanized iron sheet, and the shape of framework is identical with the profile of bottom, and the two ends of galvanized iron sheet are freely but can connect together by a trip bolt.
Compare with common A.C. voltmeter, the beneficial effects of the utility model are as follows:
The utility model adopts digitizing pointer indication technology, gauge internal does not have the damped part of rapid wears such as hairspring, the power frequency ac voltage signal is by the single-chip microcomputer of special-purpose control module inside, handle through quantifications such as digital filterings, directly drive micro-step motor drive pointer and on alternating voltage digital calibration dish, indicate current ac voltage measurement value, have measuring accuracy height, life-span length, good reliability, satisfy the characteristics of people's observation habit, be particularly suitable for the application of middle and high end energy management system and industrial control field.
Description of drawings
Fig. 1 is an outside drawing of the present utility model;
Fig. 2 is a front elevation of the present utility model;
Fig. 3 is a bonnet front elevation of the present utility model;
Fig. 4 is a side view of the present utility model;
Fig. 5 is the blast outside drawing of backward observing from the cover frame of the present utility model;
Fig. 6 is the blast outside drawing of observing forward from bottom of the present utility model;
Fig. 7 is the medial elevational view of cover frame of the present utility model;
Fig. 8 is installation mount figure of the present utility model;
Fig. 9 is an electric theory diagram of the present utility model.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model.
Universal surface plate formula Digital AC voltage table disclosed in the utility model comprises: cover frame (1), scale panel (2), the digital calibration table of on scale panel (2), engraving (3), pointer (4), center (5), bottom (6), the connector of DB9 core (7), the screw-tightened terminal (8) (9) of alternating voltage input, micro-step motor (10), the hollow cylinder step (11) that stretch out cover frame (1) inboard, special-purpose control module (12), install and fix framework folder (13) and be used for fixing the trip bolt (14) that framework presss from both sides the junction, two ends of (13).
Be to be formed by connecting on the utility model structure by cover frame (1), center (5), bottom (6) three parts, wherein, cover frame (1), center (5) are square structure with bottom (6), the middle opening of its cover frame (1) is shaped as a unequal-sided pentagon, with this display window, can observe the ac digital graduation apparatus (3) on the scale panel (2) and the current location of pointer (4) by this window as ac digital graduation apparatus (3).Structurally, cover frame (1) links to each other with center (5), and center (5) links to each other with bottom (6) more then.Scale panel (2) is a square panel, engrave an arc shape ac digital graduation apparatus (3) that is 90 ° on its scale panel (2), all scales on the graduation apparatus (3) all are uniform, the position of scale panel (2) is between cover frame (1) and the center (5), and is fixed on the inboard of cover frame (1) by the screw hole of (2) four jiaos of scale panels.
Between cover frame (1) and ac digital graduation apparatus (3), one root pointer (4) is arranged, one end of pointer (4) passes scale panel (2) and directly inserts on the rotation axis of micro-step motor (10), described micro-step motor (10) then directly embeds and is installed in the step (11) of a hollow cylinder that stretches out cover frame (1) inboard, and its micro-step motor (10) is controlled by special-purpose control module (12).
A DB9 core connector (7) that is used for RS-485 communication is arranged on the bottom (6), can directly and between the host computer realize master-slave communication by this connector, bottom (6) is gone up the screw-tightened terminal (8) (9) that also has two to be used for the ac voltage signal input.
In the utility model, the single-chip microcomputer and the motor micro-stepping sub-driver circuit of the built-in band A/D conversion port of its special-purpose control module (12), alternating voltage input signal to be measured is imported from screw-tightened terminal (8) (9), after rectification and potential-divider network dividing potential drop, be divided into two-way output, wherein one tunnel feed signals modulate circuit is handled, enter the A/D end of convert sampling of single-chip microcomputer then, single-chip microcomputer can be converted into stepper motor (10) rotation axis through the quantities transformation calculations with the current magnitude of voltage that records and rotate required angle displacement amount, motor micro-stepping sub-driver circuit can make the rotation axis of micro-step motor (10) realize the micro-stepping rotation, thereby drives pointer (4) deflection smoothly; The charge pump feed circuit are sent on another road, the charge pump feed circuit are actually by electric capacity the build-up effect of electric charge are produced high pressure, the power supply that is equivalent to a storage, both as the power supply of single-chip microcomputer and stepper motor, can guarantee again when low-voltage is imported, the power supply of charge pump feed circuit stored can guarantee to drive the rotation axis deflection of micro-step motor (10), perhaps when the DC voltage of input is zero, can realize the required energy of pointer (4) flyback action.
The utility model can directly embed on the shell that is installed in the electrical control cabinet that has square hole, installing and fixing by installing and fixing framework folder (13) of instrument finished, it installs and fixes framework folder (13) and is made up of galvanized iron sheet, the shape of framework (13) is identical with bottom (6), the two ends of galvanized iron sheet are freely but can connect together by a trip bolt (14), earlier fixed frame folder (13) is sleeved on the bottom (6), and contact with the inside surface of electrical control cabinet, the two ends of iron sheet are tightened by a trip bolt (14) be fixed together again.
Above-mentioned embodiment just embodies the preferred version of technical solutions of the utility model, those skilled in the art to wherein some local some changes that may make all embodied principle of the present utility model, belong to protection domain of the present utility model.
Claims (10)
1. universal surface plate formula Digital AC voltage table, comprise: cover frame (1), scale panel (2), pointer (4), center (5), bottom (6), micro-step motor (10), special-purpose control module (12), it is characterized in that, engraved ac digital graduation apparatus (3) on the scale panel (2), there is a hollow cylinder step (11) that stretches out the inboard of cover frame (1), a micro-step motor (10) is installed in the step, and pointer (4) is driven by the driving shaft of micro-step motor (10).
2. universal surface plate formula Digital AC voltage table according to claim 1, it is characterized in that, cover frame (1), center (5) are square structure with bottom (6), the middle opening of its cover frame (1) is shaped as a unequal-sided pentagon, cover frame (1) links to each other with center (5), and center (5) links to each other with bottom (6) more then.
3. universal surface plate formula Digital AC voltage table according to claim 1, it is characterized in that, scale panel (2) is a square panel, engrave an ac digital graduation apparatus (3) that is 90 ° arc shape on its scale panel (2), all scales on the graduation apparatus (3) all are uniform, the position of scale panel (2) and is fixed on the inboard of cover frame (1) by the screw hole of (2) four jiaos of scale panels between cover frame (1) and center (5).
4. universal surface plate formula Digital AC voltage table according to claim 1, it is characterized in that, it is hollow cylindrical step (11) that a centre is arranged in the inboard of cover frame (1), micro-step motor (a 10) embedding with single rotation axis is installed in the hollow cylindrical step (11), and its micro-step motor (10) is controlled by special-purpose control module (12).
5. universal surface plate formula Digital AC voltage table according to claim 1, it is characterized in that, pointer (4) is positioned between cover frame (1) and the scale panel (2), one end of pointer (4) passes scale panel (2) and directly inserts on the rotation axis of micro-step motor (10), drives its deflection by the rotation axis of micro-step motor (10).
6. universal surface plate formula Digital AC voltage table according to claim 1 is characterized in that, a DB9 core connector (7) that is used for RS-485 communication is arranged on the bottom (6).
7. universal surface plate formula Digital AC voltage table according to claim 1 is characterized in that, bottom (6) is gone up the screw-tightened terminal (8) (9) that also has two to be used for the alternating voltage input.
8. universal surface plate formula Digital AC voltage table according to claim 1 is characterized in that, built-in single-chip microcomputer of special-purpose control module (12) and stepper motor micro-stepping sub-driver circuit.
9. universal surface plate formula Digital AC voltage table according to claim 1, it is characterized in that, voltage input signal is introduced from terminal (8) (9), behind rectification circuit and potential-divider network, one tunnel entering signal modulate circuit, send the A/D end of the built-in single-chip microcomputer of special-purpose control module (12) again, the charge pump feed circuit are sent on another road, and the charge pump feed circuit link to each other with the power port of special-purpose control module (12).
10. universal surface plate formula Digital AC voltage table according to claim 1, it is characterized in that, the framework folder (13) that installs and fixes of instrument is made up of galvanized iron sheet, the shape of framework (13) is identical with the profile of bottom (6), and the two ends of galvanized iron sheet are freely but can connect together by a trip bolt (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202595389U CN201562009U (en) | 2009-12-08 | 2009-12-08 | Universal panel type digital alternating current voltmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202595389U CN201562009U (en) | 2009-12-08 | 2009-12-08 | Universal panel type digital alternating current voltmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201562009U true CN201562009U (en) | 2010-08-25 |
Family
ID=42627157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202595389U Expired - Fee Related CN201562009U (en) | 2009-12-08 | 2009-12-08 | Universal panel type digital alternating current voltmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201562009U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457810A (en) * | 2014-11-28 | 2015-03-25 | 北京航天易联科技发展有限公司 | Double-display micrometer gauge and micrometer gauge pointer display control method |
| CN109507475A (en) * | 2018-12-24 | 2019-03-22 | 彭希南 | Wind power plant numerical indexes formula ammeter based on Zigbee WLAN |
| CN109596882A (en) * | 2018-12-24 | 2019-04-09 | 彭希南 | A kind of photovoltaic generating system voltmeter |
-
2009
- 2009-12-08 CN CN2009202595389U patent/CN201562009U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457810A (en) * | 2014-11-28 | 2015-03-25 | 北京航天易联科技发展有限公司 | Double-display micrometer gauge and micrometer gauge pointer display control method |
| CN109507475A (en) * | 2018-12-24 | 2019-03-22 | 彭希南 | Wind power plant numerical indexes formula ammeter based on Zigbee WLAN |
| CN109596882A (en) * | 2018-12-24 | 2019-04-09 | 彭希南 | A kind of photovoltaic generating system voltmeter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201562009U (en) | Universal panel type digital alternating current voltmeter | |
| CN103673900A (en) | Field calibration device of linear displacement measuring system | |
| CN202885840U (en) | Multi-loop magneto-electric absolute value encoder | |
| CN205080166U (en) | Voltmeter | |
| CN201548613U (en) | Universal digital DC voltmeter | |
| CN203259595U (en) | Full-automatic digital megohmmeter | |
| CN204203422U (en) | A kind of accelerometer circuit board ATE (automatic test equipment) | |
| CN102175129B (en) | Displacement measuring device for stellarator superconducting magnet | |
| CN108152556B (en) | Passive excitation self-powered wireless non-contact current sensing measurement device and measurement method | |
| CN201569700U (en) | Panel insertion type digital DC ammeter | |
| CN215177625U (en) | Positioning special tool for energy storage shaft of Siemens mechanism | |
| CN2898785Y (en) | Protector against overload for electronic balance sensor | |
| CN204374404U (en) | A kind of three-phase electric energy meter external magnetic field calibration equipment | |
| CN208567778U (en) | A kind of wind power generating set load strain monitoring device based on current vortex sensor | |
| CN203930036U (en) | A kind of three-phase overvoltage protector revise instrument | |
| CN201637786U (en) | Detecting device for atmosphere electric field | |
| CN107966238B (en) | Electric signal pointer type rotary indicator | |
| CN201489049U (en) | Digital alternating voltage-current combination meter | |
| CN107993877B (en) | Three-phase linkage type GIS isolating switch position split-phase indicating device | |
| CN102103809A (en) | Simulated digital light column type liquid level meter | |
| CN217820581U (en) | High-reliability high-precision high-voltage metering box | |
| CN216847910U (en) | Multifunctional ammeter | |
| CN218449710U (en) | Junction box structure with heater | |
| CN210512996U (en) | Waterproof and oilproof digital display indicator | |
| CN203605904U (en) | Tester for measuring flatness of plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20121208 |