CN203811298U - Electrical contact operation signal loop system for main transformer thermometer calibration - Google Patents
Electrical contact operation signal loop system for main transformer thermometer calibration Download PDFInfo
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- CN203811298U CN203811298U CN201420061609.5U CN201420061609U CN203811298U CN 203811298 U CN203811298 U CN 203811298U CN 201420061609 U CN201420061609 U CN 201420061609U CN 203811298 U CN203811298 U CN 203811298U
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- electric contact
- main transformer
- circuit board
- transformer thermometer
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- 230000000007 visual effect Effects 0.000 claims abstract description 14
- 238000012795 verification Methods 0.000 claims description 34
- 239000003086 colorant Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000007689 inspection Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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- 230000003252 repetitive effect Effects 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
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Abstract
The utility model discloses an electrical contact operation signal loop system for main transformer thermometer calibration. The system comprises an electronic circuit board component connected to a main transformer thermometer and providing an audible signal and a visual signal. The electronic circuit board component includes a circuit board and five functional modules disposed on the circuit board. The five functional modules are a loop terminal module for connecting the circuit board and electrical contacts of the main transformer thermometer, a power supply module supplying DC work power to loops of the circuit board, a buzzer module sending the corresponding audible signal according to any electrical contact operation, a switch module for switching of the electrical contacts between normally-open contacts and normally-closed contacts, and an LED light module displaying the position of one of the electrical contacts making current operation and sending the visual signal. The system provides the audible and visual signals simultaneously for calibrators when electrical contact operations are carried out, so that the operation situation of the electrical contacts can be determined in time, and operation temperature values can be recorded.
Description
Technical field
The utility model belongs to the technical field of the electric contact action of main transformer thermometer being carried out the instrument of verification in electric system, relate in particular to a kind of signal circuit system that possesses logic control function, audible signal and visual signal can be provided simultaneously, this signal circuit system electricity mainly applies to testing laboratory's calibration, the calibration operation of main transformer thermometer, be used in conjunction with the equipment such as thermostatic oil bath, normalized current source, help verification personnel to complete the inspection of the electric contact acting characteristic of main transformer thermometer.
Background technology
At present, the ultimate principle of the electric contact of thermometer action: utilize the action of temperature variation band moving contact.In the time that temperature rise meets or exceeds setting value, the actuating of relay, normally closed contact disconnects, normal opened contact closure.In the time that temperature drops to lower than setting value, the actuating of relay, disconnects normal opened contact, normally closed contact closure.General main transformer thermometer all has 4 electric contacts.
Check this calibrating project for the electric contact acting characteristic of main transformer thermometer, while action due to electric contact, there is no obvious signal prompt, do not have special servicing unit to help judge the action of electric contact yet, can only rely on verification personnel's experience all the time, in the time that current temperature value approaches electric contact action setting valve, by multimeter, the normal opened contact in electric contact loop and normally closed contact are carried out to resistance measurement, judge with this whether electric contact moves, and then current temperature value is read and record.This extensive inspection method, needs verification personnel's notice high concentration, and its accuracy is also limited by personnel's subjective judgement, easily makes mistakes.
Summary of the invention
The not enough problem existing for the electric contact acting characteristic inspection of existing main transformer thermometer, the utility model provides a kind of electric contact actuating signal circuit system for the verification of main transformer thermometer, this electric contact actuating signal circuit system can improve the electric contact acting characteristic inspection method of main transformer thermometer, making has very clear and definite actuating signal to point out in checking process, no longer rely on verification personnel's subjective judgement power, improve the controllability in checking procedure.Solve two practical problemss: 1, because the error of personnel's subjectivity causes the inaccurate of reading; 2, miss reading chance, prolongation test period causes repeating heating up.
To achieve these goals, the utility model provides a kind of electric contact actuating signal circuit system for the verification of main transformer thermometer, comprises the electronic circuit panel element that is connected with master temperature indicator and audible signal and visual signal can be provided; Described electronic circuit panel element comprises circuit board and is located at 5 functional modules on circuit board, and these 5 functional modules are respectively: for connecting circuit board and the loop terminals module of the electric contact of main transformer thermometer, for the loop of circuit board provide the power module of DC supply, according to any one electric contact action send the hummer module of a corresponding audible signal, the current action electric contact position of the change-over switch module switched between Chang Kai and normally closed contact for electric contact, demonstration provide the LED lamp module of visual signal.
The electric contact action of main transformer thermometer can be passed through circuit board, and a very clear and definite actuating signal is provided, and reminds verification personnel to carry out the reading of operating temperature value.This circuit board should possess following some basic function: first, can provide an audible signal, point out the current electric contact action that has; Secondly, provide a visual signal simultaneously, by this visual signal, can the very clear and definite residing position of electric contact of settled front generation action really.The 3rd, verification personnel send actuating signal at circuit board and carry out after reading, can manually excise signal by change-over switch module, simultaneously ready for checking the involution of electric contact.
Further, described loop terminals module adopts three pin contacts that match with the loop terminals of main transformer thermometer electric contact, and triangle contact is connected by connecting line with main transformer thermometer electric contact.
Further, described power module comprises LED light and the divider resistance of a battery case that can fill 4 joint 1.5V batteries, battery main switch, display power supply duty; For loop provides the DC supply of 5V.
Further, each hummer of described hummer module all has a triode to carry out logic control.At common port, a hummer is set, hummer carries out logic control by a triode, any one electric contact action, and hummer sends an audible signal.4 electric contacts of corresponding main transformer thermometer, are divided into 4 signal circuits by circuit board, and each loop arranges three elements.
Further, described change-over switch module adopts two-way change-over switch.
Further, described LED lamp module adopts the LED lamp of 4 different colours to show 4 kinds of different states, helps verification personnel to judge the electric contact position of current action.
Step when applying this electric contact actuating signal circuit system for the verification of main transformer thermometer and carrying out thermometer verifying work is:
1. use special test wire, the electric contact loop of main transformer thermometer is connected with three pin contacts of electric contact actuating signal circuit system;
2. the power module of opening circuit board work, LED light is bright, and the change-over switch of 4 signal circuits of circuit board is placed in to normal opened contact;
3. when the temperature rise of main transformer thermometer, when reaching or exceeding first electric contact action assigned temperature value, first group of electric contact action of main transformer thermometer, its normally closed contact disconnects, normal opened contact closure, and first via signal circuit is connected, the LED lamp of this first via signal circuit is bright, provide a high level to common port simultaneously, triode conducting, hummer sends cue;
4. according to above signal prompt, verification personnel record current temperature value, is then placed in normally closed contact by the change-over switch of first via signal circuit, cuts off the cue of this first via signal circuit; Second and third, the operation of four road signal circuits keeps strokes with first via signal circuit, thermometer temperature value rises to 4 groups of electric contacts all after action, the change-over switch in 4 groups of loops has all been placed in normally closed contact;
5. the verifying work of main transformer thermometer enters temperature-fall period, when temperature value is during lower than the involution temperature value of the 4th electric contact, this electric contact involution, normal opened contact disconnects, normally closed contact closure, Gai tetra-road signal circuits are connected, LED lamp is bright, and hummer sends involution cue, and verification personnel read after involution operating temperature value, change-over switch is refitted in to normal opened contact, cuts off the cue of Gai tetra-road signal circuits.Three, the operation of two, one signal circuit is the same.
In sum, electric contact actuating signal circuit system for the verification of main transformer thermometer of the present utility model is in the time carrying out the verifying work of main transformer thermometer, the circuit board adopting can be in the time of the electric contact action of thermometer, for verification personnel provide the signal of the sense of hearing and vision two large sense organs simultaneously, judge in time the action situation of electric contact, operation of recording temperature value.In this process, very simple and convenient to the operation of circuit board, verification personnel do not need to rely on the action situation of going to measure electric contact loop terminals and judge electric contact with multimeter, do not need high concentration energy to go to wait for the action of electric contact yet.After this circuit board applies in real work, these teams and groups altogether verification 21 main transformer thermometers, facts have proved, above-mentioned two problems are well solved: 1, verification personnel can be after hearing that actuating signal is sent, the very first time removes to read the temperature value of action, can, because of the error of subjective judgement or delay, not cause read untrue; 2, the obvious actuating signal that has had circuit board to provide, verification personnel can not miss reading chance again, thereby have avoided repetitive operation to extend test period.
Brief description of the drawings
Fig. 1 is the circuit diagram of a kind of electric contact actuating signal circuit system for the verification of main transformer thermometer of the present embodiment 1.
Embodiment
With specific embodiment, the utility model is further described below.
Embodiment 1
A kind of electric contact actuating signal circuit system for the verification of main transformer thermometer of the present embodiment, as shown in Figure 1, comprises the electronic circuit panel element that is connected with master temperature indicator and audible signal and visual signal can be provided; Described electronic circuit panel element comprises circuit board and is located at 5 functional modules on circuit board, and these 5 functional modules are respectively: for connecting circuit board and the loop terminals module 3 of the electric contact of main transformer thermometer, for the loop of circuit board provide the power module 1 of DC supply, according to any one electric contact action send the hummer module 2 of a corresponding audible signal, change-over switch module 4, the current action electric contact position showing of switching between Chang Kai and normally closed contact for electric contact the LED lamp module 5 that provides visual signal.
The electric contact action of main transformer thermometer can be passed through circuit board, and a very clear and definite actuating signal is provided, and reminds verification personnel to carry out the reading of operating temperature value.This circuit board should possess following some basic function: first, can provide an audible signal, point out the current electric contact action that has; Secondly, provide a visual signal simultaneously, by this visual signal, can the very clear and definite residing position of electric contact of settled front generation action really.The 3rd, verification personnel send actuating signal at circuit board and carry out after reading, can manually excise signal by change-over switch module, simultaneously ready for checking the involution of electric contact.
Further, described loop terminals module adopts three pin contacts that match with the loop terminals of main transformer thermometer electric contact, and triangle contact is connected by connecting line with main transformer thermometer electric contact.
Further, described power module comprises LED light and the divider resistance of a battery case that can fill 4 joint 1.5V batteries, battery main switch, display power supply duty; For loop provides the DC supply of 5V.
Further, each hummer of described hummer module all has a triode to carry out logic control.At common port, a hummer is set, hummer carries out logic control by a triode, any one electric contact action, and hummer sends an audible signal.4 electric contacts of corresponding main transformer thermometer, are divided into 4 signal circuits by circuit board, and each loop arranges three elements.
Further, described change-over switch module adopts two-way change-over switch.
Further, described LED lamp module adopts the LED lamp of 4 different colours to show 4 kinds of different states, helps verification personnel to judge the electric contact position of current action.
Step when applying this electric contact actuating signal circuit system for the verification of main transformer thermometer and carrying out thermometer verifying work is:
1. use special test wire, the electric contact loop of main transformer thermometer is connected with three pin contacts of electric contact actuating signal circuit system;
2. the power module of opening circuit board work, LED light is bright, and the change-over switch of 4 signal circuits of circuit board is placed in to normal opened contact;
3. when the temperature rise of main transformer thermometer, when reaching or exceeding first electric contact action assigned temperature value, first group of electric contact action of main transformer thermometer, its normally closed contact disconnects, normal opened contact closure, and first via signal circuit is connected, the LED lamp of this first via signal circuit is bright, provide a high level to common port simultaneously, triode conducting, hummer sends cue;
4. according to above signal prompt, verification personnel record current temperature value, is then placed in normally closed contact by the change-over switch of first via signal circuit, cuts off the cue of this first via signal circuit; Second and third, the operation of four road signal circuits keeps strokes with first via signal circuit, thermometer temperature value rises to 4 groups of electric contacts all after action, the change-over switch in 4 groups of loops has all been placed in normally closed contact;
5. the verifying work of main transformer thermometer enters temperature-fall period, when temperature value is during lower than the involution temperature value of the 4th electric contact, this electric contact involution, normal opened contact disconnects, normally closed contact closure, Gai tetra-road signal circuits are connected, LED lamp is bright, and hummer sends involution cue, and verification personnel read after involution operating temperature value, change-over switch is refitted in to normal opened contact, cuts off the cue of Gai tetra-road signal circuits.Three, the operation of two, one signal circuit is the same.
Above-described embodiment is only some preferred embodiments of the present utility model; not limit according to this protection domain of the present utility model; therefore: all various equivalences of doing according to structure of the present utility model, shape, principle change, within all should being encompassed in protection domain of the present utility model.
Claims (6)
1. for an electric contact actuating signal circuit system for main transformer thermometer verification, it is characterized in that, comprise the electronic circuit panel element that is connected with master temperature indicator and audible signal and visual signal can be provided; Described electronic circuit panel element comprises circuit board and is located at 5 functional modules on circuit board, and these 5 functional modules are respectively: for connecting circuit board and the loop terminals module of the electric contact of main transformer thermometer, for the loop of circuit board provide the power module of DC supply, according to any one electric contact action send the hummer module of a corresponding audible signal, the current action electric contact position of the change-over switch module switched between Chang Kai and normally closed contact for electric contact, demonstration provide the LED lamp module of visual signal.
2. a kind of electric contact actuating signal circuit system for the verification of main transformer thermometer according to claim 1, it is characterized in that, described loop terminals module adopts three pin contacts that match with the loop terminals of main transformer thermometer electric contact, and triangle contact is connected by connecting line with main transformer thermometer electric contact.
3. a kind of electric contact actuating signal circuit system for the verification of main transformer thermometer according to claim 1, it is characterized in that, described power module comprises LED light and the divider resistance of a battery case that can fill 4 joint 1.5V batteries, battery main switch, display power supply duty.
4. a kind of electric contact actuating signal circuit system for the verification of main transformer thermometer according to claim 1, is characterized in that, each hummer of described hummer module all has a triode to carry out logic control.
5. a kind of electric contact actuating signal circuit system for the verification of main transformer thermometer according to claim 1, is characterized in that, described change-over switch module adopts two-way change-over switch.
6. a kind of electric contact actuating signal circuit system for the verification of main transformer thermometer according to claim 1, is characterized in that, described LED lamp module adopts the LED lamp of 4 different colours to show 4 kinds of different states.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420061609.5U CN203811298U (en) | 2014-02-11 | 2014-02-11 | Electrical contact operation signal loop system for main transformer thermometer calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420061609.5U CN203811298U (en) | 2014-02-11 | 2014-02-11 | Electrical contact operation signal loop system for main transformer thermometer calibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203811298U true CN203811298U (en) | 2014-09-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420061609.5U Expired - Lifetime CN203811298U (en) | 2014-02-11 | 2014-02-11 | Electrical contact operation signal loop system for main transformer thermometer calibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203811298U (en) |
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2014
- 2014-02-11 CN CN201420061609.5U patent/CN203811298U/en not_active Expired - Lifetime
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Granted publication date: 20140903 |