CN213715740U - Air-cooled controller based on PIC singlechip constitutes - Google Patents
Air-cooled controller based on PIC singlechip constitutes Download PDFInfo
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- CN213715740U CN213715740U CN202022701484.6U CN202022701484U CN213715740U CN 213715740 U CN213715740 U CN 213715740U CN 202022701484 U CN202022701484 U CN 202022701484U CN 213715740 U CN213715740 U CN 213715740U
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- chip microcomputer
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Abstract
The utility model relates to an air cooling controller based on PIC singlechip constitutes belongs to temperature automatic control technical field. The utility model comprises a singlechip, a terminal row I, a voltage reduction rectification circuit, a photoelectric isolation access element, a starting air cooling execution relay, an alarm execution relay, an operation mode change-over switch and a terminal row II; terminal row I is connected with external power source and switching value input circuit, and terminal row I is kept apart the income component through step-down rectifier circuit and photoelectricity and is connected with the singlechip, and the singlechip is connected with start air-cooled execution relay, warning execution relay, operation mode change over switch respectively, starts air-cooled execution relay, reports an emergency and asks for help or increased vigilance execution relay, operation mode change over switch and is connected with terminal row II respectively again. The utility model discloses avoided the electromagnetic type relay long-term operation to generate heat, the trouble that mechanical wear brought, the operation is reliable and stable.
Description
Technical Field
The utility model relates to an air cooling controller based on PIC singlechip constitutes belongs to temperature automatic control technical field.
Background
The main transformer air-cooling control device in the transformer substation is mostly formed by separating elements (a change-over switch, a time relay and an intermediate relay), and because the elements are formed by a large number of precise mechanical elements, the failure rate is high, the overhaul and maintenance cost is increased, and even the safe operation is influenced.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the utility model provides an air-cooled controller based on PIC singlechip constitutes has avoided the electromagnetic type relay long-term operation to generate heat, the trouble that mechanical wear brought, and the operation is reliable and stable.
The utility model adopts the technical scheme that: a wind cooling controller based on a PIC singlechip comprises a singlechip, a terminal row I, a voltage reduction rectification circuit, a photoelectric isolation input element, a starting wind cooling execution relay, an alarm execution relay, an operation mode selector switch and a terminal row II; the terminal block I is connected with an external power supply and a switching value input circuit, the terminal block I is connected with the single chip microcomputer through a voltage reduction rectification circuit and a photoelectric isolation input element, the single chip microcomputer is respectively connected with the starting air cooling execution relay, the alarming execution relay and the operation mode change-over switch, and the starting air cooling execution relay, the alarming execution relay and the operation mode change-over switch are respectively connected with the terminal block II.
Furthermore, the single chip microcomputer adopts a PIC single chip microcomputer, working current of the PIC single chip microcomputer is rectified after being subjected to alternating current voltage reduction through a voltage reduction rectification circuit to provide direct current 24V and 5V working current, wherein a 5V power supply is used by the PIC single chip microcomputer, and a 24V power supply is used for starting an air cooling execution relay, an alarm execution relay and an operation mode change-over switch.
Furthermore, the photoelectric isolation access element is used for avoiding damage of an external strong circuit to a singlechip weak current system, and the photoelectric isolation element is also used for driving the external air cooling equipment, so that the control of the weak current system to the external strong current system is realized.
Further, the device comprises an air cooling device fault indicator lamp 1, an open error indicator lamp 2, a large-load starting air cooling indicator lamp 3, a high-temperature starting air cooling indicator lamp 4, a working mode selection switch 5, a nixie tube 6 and a dip switch 7;
the air cooling device fault indicator lamp 1 is connected with the single chip microcomputer and used for indicating faults of the air cooling device;
the open error indicator lamp 2 is connected with the single chip microcomputer and used for indicating open error;
the large-load starting air-cooling indicator lamp 3 is used for indicating large-load starting air-cooling;
the high-temperature starting air-cooled indicator lamp 4 is used for indicating high-temperature starting air-cooled;
the working mode selection switch 5 is used for manually or automatically selecting a working mode of the air cooling controller formed based on the PIC singlechip;
the nixie tube 6 is used for large-load starting air-cooling delay indication;
the dip switch 7 is used for setting the dip switch in time.
The utility model has the advantages that: the utility model discloses a present mainstream technical job stabilization is reliable, has avoided the electromagnetic type relay long-term operation to generate heat, the trouble that mechanical wear brought, and the operation is reliable and stable. Because the electronic components such as the single chip microcomputer and the like are low in price compared with mechanical components, the production cost can be greatly reduced, and the popularization and application values are achieved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention in cooperation with an application;
fig. 3 is a schematic view of the external partial structure of the present invention.
The respective reference numerals in fig. 3: 1-an air cooling device fault indicator lamp, 2-a starting error indicator lamp, 3-a large-load starting air cooling indicator lamp, 4-a high-temperature starting air cooling indicator lamp, 5-a working mode selection switch, 6-a nixie tube and 7-a dip switch.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Example 1: as shown in fig. 1-3, an air-cooled controller based on a PIC single chip microcomputer comprises a single chip microcomputer, a terminal block i, a voltage reduction rectification circuit, a photoelectric isolation switch-in element, a starting air-cooled execution relay, an alarm execution relay, an operation mode change-over switch and a terminal block ii; the terminal block I is connected with an external power supply and a switching value input circuit, the terminal block I is connected with the single chip microcomputer through a voltage reduction rectification circuit and a photoelectric isolation input element, the single chip microcomputer is respectively connected with the starting air cooling execution relay, the alarming execution relay and the operation mode change-over switch, and the starting air cooling execution relay, the alarming execution relay and the operation mode change-over switch are respectively connected with the terminal block II.
Furthermore, the single chip microcomputer adopts a PIC single chip microcomputer, working current of the PIC single chip microcomputer is rectified after being subjected to alternating current voltage reduction through a voltage reduction rectification circuit to provide direct current 24V and 5V working current, wherein a 5V power supply is used by the PIC single chip microcomputer, and a 24V power supply is used for starting an air cooling execution relay, an alarm execution relay and an operation mode change-over switch.
Furthermore, the photoelectric isolation access element is used for avoiding damage of an external strong circuit to a singlechip weak current system, and the photoelectric isolation element is also used for driving the external air cooling equipment, so that the control of the weak current system to the external strong current system is realized.
Further, the device comprises an air cooling device fault indicator lamp 1, an open error indicator lamp 2, a large-load starting air cooling indicator lamp 3, a high-temperature starting air cooling indicator lamp 4, a working mode selection switch 5, a nixie tube 6 and a dip switch 7;
the air cooling device fault indicator lamp 1 is connected with the single chip microcomputer and used for indicating faults of the air cooling device;
the open error indicator lamp 2 is connected with the single chip microcomputer and used for indicating open error;
the large-load starting air-cooling indicator lamp 3 is used for indicating large-load starting air-cooling;
the high-temperature starting air-cooled indicator lamp 4 is used for indicating high-temperature starting air-cooled;
the working mode selection switch 5 is used for manually or automatically selecting a working mode of the air cooling controller formed based on the PIC singlechip;
the nixie tube 6 is used for large-load starting air-cooling delay indication;
the dip switch 7 is used for setting the dip switch in time.
The utility model discloses a theory of operation is:
as shown in fig. 2, the switching value input in the middle and external power supply and switching value input circuit of the utility model comprises an external thermometer 55 ℃ contact, an external thermometer 45 ℃ contact, a BFJ current relay during setting value, and a dynamic contact C; the terminal row I comprises 9 terminals in total from D1 to D9, and a detailed connection schematic diagram is shown in FIG. 2;
description of the test examples: it can be seen from fig. 2 that the external loop of the air cooling controller is very simple, and the system can work only by accessing a power supply, a switching value and an air cooling output command execution loop, and mainly has the following functions.
And (3) overtemperature starting: when the 55 ℃ contact of the external thermometer is closed, the air cooling controller starts the fan in a delayed mode.
Stopping at low temperature: when the temperature of the transformer is gradually reduced due to the cooling effect or the reduction of the load of the transformer, the fan does not stop working, but the fan system stops working after the temperature of the transformer is reduced to 45 ℃ and the 45 ℃ contact is closed as measured by the temperature meter.
And (3) overload starting: when the load of the transformer exceeds the setting value, the BFJ current relay acts and the movable contact is closed, and the fan is started for cooling in a delayed mode.
Sending abnormal signals of the fan: when the control sends out a fan starting command for 1 second, the action condition of the execution contactor 2C is detected, if a moving contact C is closed (see the terminal row I D9 of the air cooling controller in the picture), the system considers normal, otherwise, if the 2C contactor does not act, the execution loop is in fault, and at the moment, the controller sends out an alarm signal through the terminals II D7 and 8 of the terminal row.
Forced air cooling: if the controller is internally faulted, an operator can switch the controller to a forced air cooling state, D1-D2 on the terminal row II in the controller is short-circuited at the time of startup, and the fan is in a forced running state.
While the present invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides an air-cooled controller based on PIC singlechip constitutes which characterized in that: the system comprises a singlechip, a terminal row I, a voltage reduction rectification circuit, a photoelectric isolation switch-in element, a starting air cooling execution relay, an alarm execution relay, an operation mode selector switch and a terminal row II; the terminal block I is connected with an external power supply and a switching value input circuit, the terminal block I is connected with the single chip microcomputer through a voltage reduction rectification circuit and a photoelectric isolation input element, the single chip microcomputer is respectively connected with the starting air cooling execution relay, the alarming execution relay and the operation mode change-over switch, and the starting air cooling execution relay, the alarming execution relay and the operation mode change-over switch are respectively connected with the terminal block II.
2. The PIC single-chip microcomputer-based air-cooled controller according to claim 1, wherein: the single chip microcomputer adopts a PIC single chip microcomputer, working current of the PIC single chip microcomputer is rectified after being subjected to alternating current voltage reduction through a voltage reduction rectifying circuit to provide direct current 24V and 5V working current, wherein a 5V power supply is used by the PIC single chip microcomputer, and a 24V power supply is used for starting an air cooling execution relay, an alarm execution relay and an operation mode change-over switch.
3. The PIC single-chip microcomputer-based air-cooled controller according to claim 1, wherein: the photoelectric isolation access element is used for avoiding damage of an external strong circuit to a singlechip weak current system, and the photoelectric isolation element is also used for driving the external air cooling equipment, so that the control of the weak current system to the external strong current system is realized.
4. The PIC single-chip microcomputer-based air-cooled controller according to claim 1, wherein: the device is characterized by also comprising an air cooling device fault indicator lamp (1), a switch-in error indicator lamp (2), a large-load starting air cooling indicator lamp (3), a high-temperature starting air cooling indicator lamp (4), a working mode selection switch (5), a nixie tube (6) and a finger-dialing switch (7);
the air cooling device fault indicator lamp (1) is connected with the single chip microcomputer and used for indicating faults of the air cooling device;
the open error indicator lamp (2) is connected with the single chip microcomputer and used for indicating open error;
the large-load starting air-cooling indicator lamp (3) is used for indicating large-load starting air-cooling;
the high-temperature starting air-cooled indicator lamp (4) is used for indicating high-temperature starting air-cooled indication;
the working mode selection switch (5) is used for manually or automatically selecting the working mode of the air cooling controller formed based on the PIC singlechip;
the nixie tube (6) is used for large-load starting air-cooling delay indication;
the dip switch (7) is used for time setting of the dip switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022701484.6U CN213715740U (en) | 2020-11-19 | 2020-11-19 | Air-cooled controller based on PIC singlechip constitutes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022701484.6U CN213715740U (en) | 2020-11-19 | 2020-11-19 | Air-cooled controller based on PIC singlechip constitutes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213715740U true CN213715740U (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022701484.6U Active CN213715740U (en) | 2020-11-19 | 2020-11-19 | Air-cooled controller based on PIC singlechip constitutes |
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|---|---|
| CN (1) | CN213715740U (en) |
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2020
- 2020-11-19 CN CN202022701484.6U patent/CN213715740U/en active Active
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