CN206248723U - A kind of three-phase network multifunctional measurement and control ammeter - Google Patents
A kind of three-phase network multifunctional measurement and control ammeter Download PDFInfo
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- CN206248723U CN206248723U CN201621403821.0U CN201621403821U CN206248723U CN 206248723 U CN206248723 U CN 206248723U CN 201621403821 U CN201621403821 U CN 201621403821U CN 206248723 U CN206248723 U CN 206248723U
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Abstract
The utility model provides a kind of three-phase network multifunctional measurement and control ammeter, including single-chip microcomputer and the power circuit, switching value output circuit, switching value input circuit and the analog quantity acquisition circuit that are connected with single-chip microcomputer；Switching value output circuit：It is made up of photoisolator and electromagnetic type double relay the series connection isolated loop for coupling successively；The photoisolator input is connected with the single-chip microcomputer pin.The beneficial effects of the utility model are：The utility model can be good at being applied to adverse circumstances, the environment that closed area cable wiring manufacture is difficult, wireless signal is poor, the advantage with dependable performance, high precision and communication stabilization.
Description
Technical field
The utility model is related to a kind of ammeter, more particularly to a kind of three-phase network multifunctional measurement and control ammeter.
Background technology
With the development and progress of science and technology, constantly electric power phasor measurement is of increasing concern for current power system, while right
Change power distribution automation, intelligent building, the electric energy measurement of enterprises it is also proposed requirement higher, instrument output in current industry
Type it is single and, and majority cannot meet the requirement to the harsh grade of use environment.In addition, current observing and controlling ammeter is to use mostly
Four independent clamps coordinate fastening on a mounting board with observing and controlling ammeter housing, but existing clamp is that point is contacted with installing plate,
Install insecure, and clamp global design existing defects, cause dismounting inconvenient.
Utility model content
The utility model be directed to special, harsh and unforgiving environments, there is provided a kind of observing and controlling dependable performance, high precision, communication stabilization can
The three-phase network multifunctional measurement and control ammeter for leaning on.
The utility model is realized by following measure：A kind of three-phase network multifunctional measurement and control ammeter, including single-chip microcomputer
And power circuit, switching value output circuit, switching value input circuit and the analog quantity acquisition circuit being connected with the single-chip microcomputer；
The power circuit：It is described including the surge lightning protection circuit, isolating transformer and the high frequency switch power that couple successively
Surge lightning protection circuit includes the common mode differential mode protection circuit being made up of three piezo-resistances；The power circuit output end linker
Quasi- potential circuit connection；Wherein, the reference voltage circuit includes 5v reference voltage circuits and 3.3v reference voltage circuits；
The switching value output circuit：By photoisolator and electromagnetic type double relay the series connection isolated loop being sequentially connected
Constitute；The photoisolator input is connected with the single-chip microcomputer pin；
The switching value input circuit：Including the switch quantity acquisition circuit being made up of photoelectrical coupler, the photoelectric coupling
Device output end is connected with the single-chip microcomputer pin；
The analog quantity acquisition circuit：By voltage transformer, current transformer, isolated amplifier, rc filter circuit and
A/D converter is constituted.
Also include telecommunication circuit, the telecommunication circuit includes carrier communication circuit and Differencing communication circuit；
The Differencing communication circuit includes the Magnetic isolation chip being connected with the single-chip microcomputer pin, and the Magnetic isolation chip is defeated
Go out end connection RS485 communication interfaces；
The carrier communication circuit is made up of the carrier communication module being connected with the Magnetic isolation chip output.
Also include electrical energy pulse output end, the electrical energy pulse output end passes through photoisolator and the single-chip microcomputer electric energy
Pulse output pin is connected.
The single-chip microcomputer is MSP430F5438A.
The three-phase network multifunctional measurement and control ammeter also includes housing, and the housing includes protecgulum, main casing and installs card,
Symmetry axis is provided with four pairs of V-type draw-in grooves of incline respectively on the main casing external surface；The card of installing includes being integrally formed
Card body and be arranged on the handle of the card body rear end, the length of the handle is more than or equal to the 2/3 of the card body length;Institute
Stating card body includes two mutually perpendicular clamps, and the clamp inner surface setting has the bar shaped used cooperatively with the V-type draw-in groove
Fixture block, the clamp outer surface is provided with convex stupefied；The handle is bent upwards downwards and is formed downwards successively by described card body one end
Curved portions, the curved portions outer surface is provided with anti-slip veins, and four inclines of the main casing are set to plane and described flat
It is provided with face and anti-slip veins；The card body front end is plane.
The lower wall outer surface of the main casing is symmetrically arranged with two bar shaped chutes and the cunning being arranged in the chute
Dynamic plate；The sliding panel includes integrally formed plate body and end, and the width of the width more than the end of the plate body is described
Plate body is higher than the plate body in stepped and described end with the end；Two side walls of the bar shaped chute are offered and institute
The draw-in groove that plate body is used cooperatively is stated, the plate body lower surface is provided with elastic supporting plate, the bar shaped chute near the end
Outer end insertion, described bar shaped chute the inner is provided with the containing cavities used cooperatively with the elastic supporting plate movable end.
Rectangular through holes are provided with the sliding panel, positioned at bar shaped chute bottom described in the rectangular through holes relevant position
Face is fixedly installed hexagon clamp, and the side wall of the rectangular through holes is symmetrically arranged with integrally formed L-type gag lever post, institute
State the montant that gag lever post is used cooperatively including the cross bar and the hexagon clamp parallel with the sliding panel.
The present embodiment additionally provides a kind of three-phase network multifunctional measurement and control ammeter, including housing, the housing include protecgulum,
Main casing and installation block, and symmetry axis is provided with four pairs of V-type draw-in grooves of incline respectively on the main casing external surface；The installation
Card includes integrally formed card body and is arranged on the handle of the card body rear end, and the length of the handle is more than or equal to the card
The 2/3 of body length;The card body includes two mutually perpendicular clamps, and the clamp inner surface setting has and the V-type draw-in groove
The bar shaped fixture block for using cooperatively, the clamp outer surface is provided with convex stupefied；The handle from described card body one end successively downwards to
On be bent to form downward curved portions, the curved portions outer surface is provided with anti-slip veins, and four inclines of the main casing are set to
Plane and it is provided with the plane and anti-slip veins；The card body front end is plane.
The lower wall outer surface of the main casing is symmetrically arranged with two bar shaped chutes and is arranged in the bar shaped chute
Sliding panel；The sliding panel includes integrally formed plate body and end, and the width of the plate body is more than the width of the end,
The plate body is higher than the plate body in stepped and described end with the end；Two side walls of the bar shaped chute are offered
The draw-in groove used cooperatively with the plate body, the plate body lower surface is provided with elastic supporting plate, the bar shaped near the end
Chute outer end insertion, described bar shaped chute the inner is provided with the containing cavities used cooperatively with the elastic supporting plate movable end.
Rectangular through holes are provided with the sliding panel, positioned at bar shaped chute bottom described in the rectangular through holes relevant position
Face is fixedly installed hexagon clamp, and the side wall of the rectangular through holes is symmetrically arranged with integrally formed L-type gag lever post, institute
State the montant that gag lever post is used cooperatively including the cross bar and the hexagon clamp parallel with the sliding panel.
The beneficial effects of the utility model are：The utility model can be good at being applied to adverse circumstances, closed area cloth
The poor environment of the line difficult, wireless signal of construction, the advantage with dependable performance, high precision and communication stabilization；Additionally, this practicality
It is new to additionally provide a kind of observing and controlling ammeter housing, with easy to use, mounting stability advantage high.
Brief description of the drawings
Fig. 1 is the circuit structure block diagram of the utility model embodiment 1.
Fig. 2 is the circuit diagram of single-chip microcomputer in the utility model embodiment 1.
Fig. 3 is the circuit diagram of power circuit in the utility model embodiment 1.
Fig. 4 is the circuit diagram of the breaker in middle amount output circuit of the utility model embodiment 1.
Fig. 5 is the circuit diagram of analog quantity acquisition circuit in the utility model embodiment 1.
Fig. 6 is the circuit diagram of telecommunication circuit in the utility model embodiment 1.
Fig. 7 is the circuit diagram of electrical energy pulse output circuit in the utility model embodiment 1.
Fig. 8 is the circuit diagram of display panel control circuit in the utility model embodiment 1.
Fig. 9 is the structural representation of housing in the utility model embodiment 1 and 2.
Figure 10 is the structural representation of housing in the utility model embodiment 3.
Figure 11 is the structural representation of the housing of omission supporting plate in the utility model embodiment 3.
Figure 12 is another structural representation of the housing of omission supporting plate in the utility model embodiment 3.
Figure 13 is the structural representation of sliding panel in the utility model embodiment 3.
Wherein, reference is：
1st, protecgulum；2nd, main casing；The 3rd, card is installed；
101st, indicator lamp；102nd, button；103rd, button installing hole；
201st, V-type draw-in groove；202nd, anti-slip veins；
301st, it is convex stupefied；302nd, anti-slip veins；303rd, handle；304th, bar shaped fixture block；305th, card body；
401st, bar shaped chute；402nd, end；403rd, plate body；404th, rectangular through holes；405th, gag lever post；406th, supporting plate；
407th, draw-in groove；408th, containing cavities；409 hexagon clamps.
Specific embodiment
For the technical characterstic for illustrating this programme can be understood, below by specific embodiment, this programme is illustrated.
Referring to Fig. 1, the utility model is a kind of three-phase network multifunctional measurement and control ammeter, including single-chip microcomputer and is connected with single-chip microcomputer
Power circuit, switching value output circuit, switching value input circuit, telecommunication circuit, analog quantity acquisition circuit and the electrical energy pulse for connecing
Output circuit；Wherein, single-chip microprocessor MCU uses Texas Instrument MSP430F5438A, and its circuit diagram is as shown in Figure 2.
Referring to Fig. 3, power circuit：Including the surge lightning protection circuit, isolating transformer and the high frequency switch power that couple successively,
Surge lightning protection circuit is included by three piezo-resistances（YM1, YM3 and YM4）The common mode differential mode protection circuit of composition；Power circuit is defeated
Go out end connection reference voltage circuit connection, reference voltage circuit includes 5v reference voltage circuits and 3.3v reference voltage circuits；
Referring to Fig. 4, switching value output circuit：Connected by the photoisolator and electromagnetic type double relay that are sequentially connected and isolated
Loop is constituted；Photoisolator input is connected with single-chip microcomputer pin, using photoisolator and electromagnetic type two-position relay
Carry out dual resisteance, it is ensured that output switch parameter is safe and reliable, the present apparatus can highest configuration 6 way switch amounts output；On-off signal
Circuit：Including the switch quantity acquisition circuit being made up of photoelectrical coupler, photoelectric coupler output end is connected with single-chip microcomputer pin, single
Piece machine MCU carries out stabilization treatment using software, it is ensured that signal accurately shows that present apparatus highest can configure 4 way switch amounts
Input；
Referring to Fig. 5, analog quantity acquisition circuit：By voltage transformer, current transformer, isolated amplifier, capacitance-resistance filter electricity
Road and A/D converter are constituted；Voltage x current sampling is carried out using voltage transformer, current transformer, by isolated amplifier and
Rc filter circuit enters A/D converter, and initial data is calibrated through single-chip microcomputer filtering and precision, it is ensured that gather the steady of signal
It is fixed and reliable.
Referring to Fig. 6, telecommunication circuit：Including carrier communication circuit and Differencing communication circuit；Wherein, Differencing communication circuit includes
The Magnetic isolation chip being connected with single-chip microcomputer pin, Magnetic isolation chip output connects RS485 communication interfaces, and Magnetic isolation chip is
The three-channel digital Magnetic isolation chip of ADI, it can be ensured that more than electromagnetic isolation grade 2000V, and by RS485 communication interfaces,
Can real time data remote transmission；Carrier communication circuit is made up of the carrier communication module being connected with Magnetic isolation chip output, is adopted
Superpower anti-interference with FSK modulation mode, effective data rate reaches tens k/s on carrier wire, and transmission range supports 50-300m,
Low in energy consumption, reliability is high.
Referring to Fig. 7, electrical energy pulse output circuit：Including being connected by photoisolator and single-chip microcomputer electrical energy pulse output pin
The electrical energy pulse output end for connecing.
The utility model also includes display screen control loop（Referring to Fig. 8）With button control loop.
Embodiment 2
Based on embodiment 1, a kind of housing used cooperatively with embodiment 1 observing and controlling ammeter, housing are present embodiments provided
Card 3 is installed including protecgulum 1, main casing 2 and four, symmetry axis is provided with four pairs of V-types of incline respectively on the outer surface of main casing 2
Draw-in groove 201；Installing card 3 includes integrally formed card body 305 and is arranged on the handle 303 of the rear end of card body 305, the length of handle 303
2/3 of degree more than or equal to the length of card body 305;Card body 305 include two mutually perpendicular clamps, clamp inner surface setting have with
The bar shaped fixture block 304 that V-type draw-in groove 201 is used cooperatively, clamp outer surface is provided with convex stupefied 301；Handle 303 is by the one end of card body 305
It is bent upwards downwards to form downward curved portions successively, curved portions outer surface is provided with anti-slip veins 302,2 four inclines of main casing
It is set to plane and is provided with the plane and anti-slip veins 202；During clamping, the anti-slip veins 202 on main casing 2 are placed exactly in handle
On the anti-slip veins 302 of 303 curved portions, certain position-limiting action is served, while when the front end of card body 305 is plane, i.e. clamping,
Install and contacted into face between card 3 and installing plate, increase contact area, the stability of installation is improve, simultaneously because handle 303
Length reach card body 305, convenient dismounting.Wherein, the single-chip microcomputer and circuit in embodiment 1 are integrated according to conventional technical means
On circuit boards, and by circuit board it is fixed in housing；Indicator lamp 101 is installed on protecgulum 1 and button installing hole is offered
103, button 102 is connected in the button installing hole 103 of protecgulum 1.
Embodiment 3
A kind of three-phase network multifunctional measurement and control ammeter, including housing are present embodiments provided, housing includes protecgulum 1, main casing
Body 2 and four installation cards 3, four pairs of V-type draw-in grooves 201 are provided with the outer surface of main casing 2 by symmetry axis of incline respectively；Card is installed
3 include integrally formed card body 305 and are arranged on the handle 303 of the rear end of card body 305, and the length of handle 303 is more than or equal to card
The 2/3 of the length of body 305;Card body 305 includes two mutually perpendicular clamps, and clamp inner surface setting has and coordinates with V-type draw-in groove 201
The bar shaped fixture block 304 for using, clamp outer surface is provided with convex stupefied 301；Handle 303 is bent up downwards successively by the one end of card body 305
It is curved that into downward curved portions, curved portions outer surface is provided with anti-slip veins 302,2 four inclines of main casing be set to plane and
It is provided with plane and anti-slip veins 202；During clamping, the anti-slip veins 202 on main casing 2 are placed exactly in the anti-of the curved portions of handle 303
On sliding line 302, certain position-limiting action is served, while when the front end of card body 305 is plane, i.e. clamping, installing card 3 and installing
Contacted into face between plate, increase contact area, the stability of installation is improve, simultaneously because the length of handle 303 reaches card
Body 305, convenient dismounting.
Embodiment 4
Based on embodiment 2 and embodiment 3, a kind of preferred scheme is present embodiments provided, increased supporting mechanism, specifically
, the lower wall outer surface of main casing 2 is symmetrically arranged with two bar shaped chutes 401 and the slip being arranged in bar shaped chute 401
Plate；Sliding panel includes integrally formed plate body 403 and end 402, the width of the width more than end 402 of plate body 403, end
402 width is equal to or slightly less than the width of bar shaped chute 401, and anti-slip veins are provided with end 402；Plate body 403 and end 402
It is higher than plate body 403 in stepped and end 402；Two side walls of bar shaped chute 401 offer the card used cooperatively with plate body 403
Groove 407, the lower surface of plate body 403 is provided with elastic supporting plate 406 near end 402, and the outer end insertion of bar shaped chute 401, bar shaped is slided
The inner of groove 401 is provided with the containing cavities 408 used cooperatively with the movable end of elastic supporting plate 406；In the case of there is no external force, elasticity
Supporting plate 406 stretches to the direction away from sliding panel.
Rectangular through holes 404 are provided with sliding panel, positioned at the bottom surface of 404 relevant position bar shaped chute of rectangular through holes 401
Hexagon clamp 409 is fixedly installed, the side wall of rectangular through holes 404 is symmetrically arranged with integrally formed L-type gag lever post
405, gag lever post 405 includes the montant that the cross bar parallel with sliding panel and hexagon clamp 409 are used cooperatively；Wherein, hexagon
Clamp 409 includes rectangular portion and is arranged on the triangular portion at the rectangular portion two ends, and gag lever post 405 is plastic material, tool
There is certain bending degree or pliability, less than the width of rectangular portion, gag lever post 405 is by two ends for two distances of gag lever post 405
Triangular portion move to rectangular portion and need to overcome certain resistance, therefore with spacing or positioning effect.
Before installation, near the triangular portion of inner side, now, elastic supporting plate 406 is located in containing cavities 408 gag lever post 405,
During installation, protecgulum 1 is connected on main casing 2, after main casing 2 is passed through into mounting hole, the end 402 of sliding panel, bullet can be pulled
Property supporting plate 406 depart from free end ejection after containing cavities 408, then by sliding panel propulsion stripe shape groove 401, and ensure elastic branch
Fagging 406 is again adjacent to the triangular portion of inner side, and now elastic supporting plate 406 is just supported on a mounting board, then four are installed
Card 3 is installed successively can be completed.
The utility model without description technical characteristic can by or using prior art realize, will not be repeated here,
Certainly, described above is not that, to limitation of the present utility model, the utility model is also not limited to the example above, this technology neck
Change, remodeling, addition or replacement that the those of ordinary skill in domain is made in essential scope of the present utility model, should also belong to
Protection domain of the present utility model.
Claims (10)
1. a kind of three-phase network multifunctional measurement and control ammeter, it is characterised in that the electricity being connected including single-chip microcomputer and with the single-chip microcomputer
Source circuit, switching value output circuit, switching value input circuit and analog quantity acquisition circuit；
The power circuit：Including the surge lightning protection circuit, isolating transformer and the high frequency switch power that couple successively, the surge
Lightning protection circuit includes the common mode differential mode protection circuit being made up of three piezo-resistances；
The switching value output circuit：By photoisolator and electromagnetic type double relay the series connection isolated loop structure being sequentially connected
Into；The photoisolator input is connected with the single-chip microcomputer pin；
The switching value input circuit：Including the switch quantity acquisition circuit being made up of photoelectrical coupler, the photoelectrical coupler is defeated
Go out end to be connected with the single-chip microcomputer pin；
The analog quantity acquisition circuit：Turned by voltage transformer, current transformer, isolated amplifier, rc filter circuit and A/D
Parallel operation is constituted.
2. three-phase network multifunctional measurement and control ammeter according to claim 1, it is characterised in that also including telecommunication circuit, institute
Stating telecommunication circuit includes carrier communication circuit and Differencing communication circuit；
The Differencing communication circuit includes the Magnetic isolation chip being connected with the single-chip microcomputer pin, the Magnetic isolation chip output
Connection RS485 communication interfaces；
The carrier communication circuit is made up of the carrier communication module being connected with the Magnetic isolation chip output.
3. three-phase network multifunctional measurement and control ammeter according to claim 1, it is characterised in that also exported including electrical energy pulse
End, the electrical energy pulse output end is connected by photoisolator with the single-chip microcomputer electrical energy pulse output pin.
4. three-phase network multifunctional measurement and control ammeter according to claim 1, it is characterised in that the single-chip microcomputer is
MSP430F5438A。
5. the three-phase network multifunctional measurement and control ammeter according to claim any one of 1-4, it is characterised in that also including shell
Body, the housing includes protecgulum, main casing and installs card, is provided with by symmetry axis of incline respectively on the main casing external surface
Four pairs of V-type draw-in grooves；The installation blocks and includes integrally formed card body and be arranged on the handle of the card body rear end, the handle
2/3 of length more than or equal to the card body length;The card body includes two mutually perpendicular clamps, the clamp inner surface
It is provided with the bar shaped fixture block used cooperatively with the V-type draw-in groove.
6. three-phase network multifunctional measurement and control ammeter according to claim 5, it is characterised in that the card body front end is flat
Face.
7. three-phase network multifunctional measurement and control ammeter according to claim 6, it is characterised in that the lower wall of the main casing
Outer surface is symmetrically arranged with two bar shaped chutes and the sliding panel being arranged in the bar shaped chute；The sliding panel includes one
The plate body of shaping and end, the width of the width more than the end of the plate body, the plate body is with the end in step type
And the end is higher than the plate body；Two side walls of the bar shaped chute offer the draw-in groove used cooperatively with the plate body,
The plate body lower surface is provided with elastic supporting plate, the bar shaped chute outer end insertion, the bar shaped chute near the end
The inner is provided with the containing cavities used cooperatively with the elastic supporting plate movable end.
8. three-phase network multifunctional measurement and control ammeter according to claim 7, it is characterised in that be provided with the sliding panel
Rectangular through holes, hexagon clamp, institute are fixedly installed positioned at bar shaped chute bottom surface described in the rectangular through holes relevant position
The side wall for stating rectangular through holes is symmetrically arranged with integrally formed L-type gag lever post, and the gag lever post includes and the sliding panel
The montant that parallel cross bar and the hexagon clamp is used cooperatively.
9. a kind of three-phase network multifunctional measurement and control ammeter, it is characterised in that including housing, the housing includes protecgulum, main casing
Block with installing, symmetry axis is provided with four pairs of V-type draw-in grooves of incline respectively on the main casing external surface；The installation card includes
Integrally formed card body and the handle for being arranged on the card body rear end, the length of the handle are more than or equal to the card body length
2/3;The card body includes two mutually perpendicular clamps, and the clamp inner surface setting has to coordinate with the V-type draw-in groove to be made
Bar shaped fixture block.
10. three-phase network multifunctional measurement and control ammeter according to claim 9, it is characterised in that the card body front end is flat
Face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621403821.0U CN206248723U (en) | 2016-12-20 | 2016-12-20 | A kind of three-phase network multifunctional measurement and control ammeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621403821.0U CN206248723U (en) | 2016-12-20 | 2016-12-20 | A kind of three-phase network multifunctional measurement and control ammeter |
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| Publication Number | Publication Date |
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| CN206248723U true CN206248723U (en) | 2017-06-13 |
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ID=59007979
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621403821.0U Active CN206248723U (en) | 2016-12-20 | 2016-12-20 | A kind of three-phase network multifunctional measurement and control ammeter |
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| CN (1) | CN206248723U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10302764B2 (en) * | 2017-02-03 | 2019-05-28 | Microsoft Technology Licensing, Llc | Active illumination management through contextual information |
-
2016
- 2016-12-20 CN CN201621403821.0U patent/CN206248723U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10302764B2 (en) * | 2017-02-03 | 2019-05-28 | Microsoft Technology Licensing, Llc | Active illumination management through contextual information |
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