CN104270910A - Automatic switch electronic instrument - Google Patents
Automatic switch electronic instrument Download PDFInfo
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- CN104270910A CN104270910A CN201410502123.5A CN201410502123A CN104270910A CN 104270910 A CN104270910 A CN 104270910A CN 201410502123 A CN201410502123 A CN 201410502123A CN 104270910 A CN104270910 A CN 104270910A
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- relay
- chip microcomputer
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- fin
- single chip
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Abstract
The invention discloses an automatic switch electronic instrument, and relates to the technical field of electronic instruments. A cooling fin is installed in an outer shell through supporting columns, a fan is installed at the lower end of the cooling fin, a main single chip microcomputer and an auxiliary single chip microcomputer are respectively arranged at the upper end of the cooling fin and connected through a connector assembly and a data line, shock pads adhere to the two sides of the bottom of a bottom plate, and a partition plate is installed in the outer shell; the output end of the main single chip microcomputer is connected with one end of a coil of a first relay, the output end of the auxiliary single chip microcomputer is connected with one end of a normally-closed contact of the first relay, the other end of the normally-closed contact of the first relay is connected with one end of a detection indicator lamp, the other end of the detection indicator lamp is connected with one end of a coil of a second relay, the power source end of the main single chip microcomputer and the power source end of the auxiliary single chip microcomputer are connected with one end of a normally-open contact of the second relay, and the other end of the normally-open contact of the second relay is connected with an alarm. The automatic switch electronic instrument is convenient to switch and therefore can work normally and is good in heat dissipation effect, easy to operate, convenient to use and simple in structure.
Description
Technical field:
The present invention relates to a kind of electronic instrument of automatic switchover, belong to electronic instrument technical field.
Background technology:
Electronic instrument of a great variety, sorting technique is also different.
One, indicating instrument: indicating instrument is direct-reading instrument, because indicator directly reads measurement result by the deflection angle displacement of pointer, is therefore the electronic instrument be most widely used.Various AC and DC voltmeter, ammeter and universal instrument etc., be mostly indicating instrument.
Two, integrating instrument: integrating instrument is in order to measure and to put into practice relevant amount, and namely measure in practice in certain section, instrument adds up measured.As kilowatt-hour meter is just used to a kind of integrating instrument measuring electric energy.
Three, haggle instrument: trial of strength instrument carries out by comparison method the instrument measured.It is divided into again the direct-current instrument and AC meter two type.Compared with instrument the most conventional in measuring appratus when electric bridge and potentiometer.
Four, recording instrument and Oscillograph: recording instrument is the measured instrument recorded continuously with the function changing relation of another variable.As x-y recorder etc.
Five, digital instrument: digital instrument adopts logical circuit, by the instrument of the measured size of digital-scroll technique.Due to it have highly sensitive, measuring speed fast, show the advantages such as clear and intuitive, easy to operate, antijamming capability is strong, the development of digital instrument is very fast, and kind also gets more and more.Common are digital voltmeter, digital frequency meter, digital multimeter etc.
Six, range extension device: range extension device is used to the device expanding electronic instrument measuring range, comprises shunt, additional resistance, measurement instrument transformer etc.
Seven, calibration equipment: by certain method of measurement and circuit, becomes calibration equipment by the entirety that some master meters, tolerance device and auxiliary device combine.It mainly contains indicating instrument calibration equipment, kilowatt-hour meter calibration equipment etc. in order to the verification to conventional electronic instrument etc.
Existing electronic instrument easy radiating effect difference and damage inner components and parts in use, causes equipment cisco unity malfunction.
Summary of the invention:
For the problems referred to above, the technical problem to be solved in the present invention is to provide a kind of electronic instrument of automatic switchover.
The electronic instrument of a kind of automatic switchover of the present invention, it comprises base plate, shell, display screen, ball-type clip-connecting rod, beam, fin, fan, host scm, secondary single-chip microcomputer, dividing plate, detect indicator light, alarm, relay one, relay two, the two ends of base plate are all provided with ball-type clip-connecting rod, and shell is arranged on the upper end of base plate, and be provided with fin by support column in shell, the lower end of fin is provided with fan, and the upper end of fin is respectively arranged with host scm, secondary single-chip microcomputer, host scm is connected with secondary single-chip microcomputer with data wire by connector, and beam is bonded in the both sides bottom base plate, and dividing plate is arranged on the inside of shell, and dividing plate is separately installed with alarm, relay one, relay two, display screen, detecting indicator light is installed on shell, the output of host scm is connected with one end of relay one coil, the output of secondary single-chip microcomputer is connected with one end of relay one normally-closed contact, the other end of relay one normally-closed contact is connected with the one end detecting indicator light, the other end detecting indicator light is connected with one end of relay two coil, host scm, the power end of secondary single-chip microcomputer is all connected with one end of relay two normally opened contact, and the other end of relay two normally opened contact is connected with alarm.
As preferably, described fin is provided with several louvre.
As preferably, the outer surface of described dividing plate is provided with insulation cushion.
Beneficial effect of the present invention is: be convenient to switch, instrument can normally be worked, good heat dissipation effect, easy and simple to handle, easy to use, structure is simple.
Accompanying drawing illustrates:
For ease of illustrating, the present invention is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is structural representation of the present invention;
Fig. 2 is circuit theory diagrams of the present invention.
In figure: 1-base plate; 2-shell; 3-display screen; 4-ball-type clip-connecting rod; 5-beam; 6-fin; 7-fan; 8-host scm; The secondary single-chip microcomputer of 9-; 10-dividing plate; 11-detects indicator light; 12-alarm; KM1-relay one; KM2-relay two.
Embodiment:
For making the object, technical solutions and advantages of the present invention clearly understand, below by the specific embodiment shown in accompanying drawing, the present invention is described.But should be appreciated that, these describe just exemplary, and do not really want to limit the scope of the invention.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present invention.
As shown in Figure 1-2, this embodiment by the following technical solutions: it comprises base plate 1, shell 2, display screen 3, ball-type clip-connecting rod 4, beam 5, fin 6, fan 7, host scm 8, secondary single-chip microcomputer 9, dividing plate 10, detect indicator light 11, alarm 12, relay one KM1, relay two KM2, the two ends of base plate 1 are all provided with ball-type clip-connecting rod 4, and shell 2 is arranged on the upper end of base plate 1, and be provided with fin 6 by support column in shell 2, the lower end of fin 6 is provided with fan 7, and the upper end of fin 6 is respectively arranged with host scm 8, secondary single-chip microcomputer 9, host scm 8 is connected with secondary single-chip microcomputer 9 with data wire by connector, and beam 5 is bonded in the both sides bottom base plate 1, and dividing plate 10 is arranged on the inside of shell 1, dividing plate 10 is separately installed with alarm 12, relay one KM1, relay two KM2, display screen 3, detecting indicator light 11 is installed on shell 2, the output of host scm 8 is connected with one end of relay one KM1 coil, the output of secondary single-chip microcomputer 9 is connected with one end of relay one KM1 normally-closed contact KM1-1, the other end of relay one KM1 normally-closed contact KM1-1 is connected with the one end detecting indicator light 11, the other end detecting indicator light 11 is connected with one end of relay two KM2 coil, host scm 8, the power end of secondary single-chip microcomputer 9 is all connected with one end of relay two KM2 normally opened contact KM2-1, and the other end of relay two KM2 normally opened contact KM2-1 is connected with alarm 12.
Further, described fin 6 is provided with several louvre.
Further, the outer surface of described dividing plate 10 is provided with insulation cushion.
The operation principle of this embodiment is: the output being detected host scm 8 by relay K M1, when host scm 8 no-output, relay one KM1 coil losing electricity, relay K M1 normally-closed contact KM1-1 closes, and secondary single-chip microcomputer 9 works, realize switching, relay two KM2 coil obtains electric simultaneously, and relay two KM2 normally opened contact KM2-1 closes, and alarm 12 works and reports to the police, easy to use, and good heat dissipation effect.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (3)
1. the electronic instrument automatically switched, it is characterized in that: it comprises base plate (1), shell (2), display screen (3), ball-type clip-connecting rod (4), beam (5), fin (6), fan (7), host scm (8), secondary single-chip microcomputer (9), dividing plate (10), detect indicator light (11), alarm (12), relay one (KM1), relay two (KM2), the two ends of base plate (1) are all provided with ball-type clip-connecting rod (4), shell (2) is arranged on the upper end of base plate (1), by support column, fin (6) is installed in shell (2), the lower end of fin (6) is provided with fan (7), the upper end of fin (6) is respectively arranged with host scm (8), secondary single-chip microcomputer (9), host scm (8) is connected with secondary single-chip microcomputer (9) with data wire by connector, beam (5) is bonded in the both sides of base plate (1) bottom, dividing plate (10) is arranged on the inside of shell (1), dividing plate (10) is separately installed with alarm (12), relay one (KM1), relay two (KM2), display screen (3), detecting indicator light (11) is installed on shell (2), the output of host scm (8) is connected with one end of relay one (KM1) coil, the output of secondary single-chip microcomputer (9) is connected with one end of relay one (KM1) normally-closed contact (KM1-1), the other end of relay one (KM1) normally-closed contact (KM1-1) is connected with the one end detecting indicator light (11), the other end detecting indicator light (11) is connected with one end of relay two (KM2) coil, host scm (8), the power end of secondary single-chip microcomputer (9) is all connected with one end of relay two (KM2) normally opened contact (KM2-1), the other end of relay two (KM2) normally opened contact (KM2-1) is connected with alarm (12).
2. the electronic instrument of a kind of automatic switchover according to claim 1, is characterized in that: described fin (6) is provided with several louvre.
3. the electronic instrument of a kind of automatic switchover according to claim 1, is characterized in that: the outer surface of described dividing plate (10) is provided with insulation cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410502123.5A CN104270910A (en) | 2014-09-27 | 2014-09-27 | Automatic switch electronic instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410502123.5A CN104270910A (en) | 2014-09-27 | 2014-09-27 | Automatic switch electronic instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104270910A true CN104270910A (en) | 2015-01-07 |
Family
ID=52162371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410502123.5A Pending CN104270910A (en) | 2014-09-27 | 2014-09-27 | Automatic switch electronic instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104270910A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110445674A (en) * | 2019-07-17 | 2019-11-12 | 福建龙田网络科技有限公司 | A kind of signal detection apparatus based on computer network |
-
2014
- 2014-09-27 CN CN201410502123.5A patent/CN104270910A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110445674A (en) * | 2019-07-17 | 2019-11-12 | 福建龙田网络科技有限公司 | A kind of signal detection apparatus based on computer network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150107 |
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| WD01 | Invention patent application deemed withdrawn after publication |