CN201749386U - Temperature and humidity observation and control device for high-voltage cabinet - Google Patents
Temperature and humidity observation and control device for high-voltage cabinet Download PDFInfo
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- CN201749386U CN201749386U CN2010201672751U CN201020167275U CN201749386U CN 201749386 U CN201749386 U CN 201749386U CN 2010201672751 U CN2010201672751 U CN 2010201672751U CN 201020167275 U CN201020167275 U CN 201020167275U CN 201749386 U CN201749386 U CN 201749386U
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Abstract
The utility model relates to a temperature and humidity observation and control device for a high-voltage cabinet. The device comprises a main control circuit, a storage circuit, a cooling and dehumidification loading control circuit, a load work condition monitoring circuit, a measurement circuit, a display key control circuit, an indicating circuit and an alarming circuit, wherein the storage circuit is connected with a port of the main control circuit in parallel; and the display key control circuit is connected with an key area and a nixie tube display circuit in parallel. Compared with the prior art, the temperature and humidity observation and control device can directly display the temperature and humidity of the current environment in the high-voltage cabinet, the upper and the lower limit control values and the self running state; and the return difference can be set in the approximate full scale.
Description
[technical field]
The utility model belongs to a kind of humiture measure and control device of indoor high-voltage electrical equipment.
[background technology]
At present, often be provided with the humiture measure and control device indoors in the high voltage electric equipment, temperature, humidity with monitoring high-tension apparatus environment of living in change, and according to the value of setting in the humiture measure and control device up and down, cooling load, dehumidifying load are moved to some extent to this, the temperature or the humidity that prevent high-tension apparatus environment of living in are too high, and cause beyond thought accident to take place.The problem that existing humiture measure and control device exists is: adopt mimic channel, temperature, humidity value can't intuitively show; Temperature, humidity sensor probe separately need two lines, and installation workload is big; The return difference of monitoring temperature unit (higher limit-lower limit) scope is too little, and the return difference of humidity control unit is a humidity point, makes to load on the state of opening and closing and frequently switch, and influences serviceable life.
[summary of the invention]
For overcoming the prior art above shortcomings, the utility model aims to provide a kind of high-voltage board humiture measure and control device, this device can show the humiture value of current environment and the bound controlling value of setting intuitively, and the running status of measure and control device self also can obtain indication, and return difference can realize approximate gamut setting.
Realize that the above-mentioned purpose technical scheme is as follows, this high-voltage board humiture measure and control device comprises governor circuit, and memory circuit, cool-down dehumidification load control circuit, loaded work piece status monitoring circuit, metering circuit, display button control circuit, indicating circuit and the warning circuit of parallel connection on the governor circuit port; Parallel connection has key zone, charactron display circuit on the display button control circuit.
During concrete enforcement, the serial data and line of memory circuit and serial time clock line are connected in the general input, output port of governor circuit.
During concrete enforcement, the light-emitting diodes tube cathode of two photoelectrical couplers in the cool-down dehumidification load control circuit is connected in the general input, output port of governor circuit.
During concrete enforcement, the output terminal and the output terminal of the two voltage comparators in the loaded work piece status monitoring circuit are connected in the general input, output port of governor circuit.
Beneficial effect: compared with prior art, the utility model can show the humiture value of current environment and the bound controlling value of setting intuitively, and the running status of measure and control device self also can obtain indication, return difference can realize approximate gamut setting (the humiture range is 0.1-99.9, and the value of setting scope is 0-99).
[description of drawings]
Fig. 1 is the principle of work block diagram of an embodiment of the utility model.
Among the figure: governor circuit 1, governor circuit port 2, memory circuit 3, cool-down dehumidification load control circuit 4, loaded work piece status monitoring circuit 5, indicating circuit 6, warning circuit 7, metering circuit 8, display button control circuit 9, key zone 10, charactron display circuit 11; Bidirectional connecting lines 13,92, unidirectional connecting line 17,24,26,45,82,92,109,111.
[embodiment]
Referring to Fig. 1, this figure is the principle of work block diagram of an embodiment.Element circuit wherein is the preferred circuit that prior art exists.Governor circuit 1 is the STC89C52RC single-chip microcomputer; Memory circuit 3 is the 24C02 chip; Metering circuit 8 is the SHT10 Temperature Humidity Sensor; Display button control circuit 9 is the CH451S chip; Cool-down dehumidification load control circuit 4 mainly is made up of two MOC3041 photoelectrical couplers, two BTA06 bidirectional triode thyristors; Loaded work piece status monitoring circuit 5 mainly is made up of current transformer and the two voltage comparator chips of LM393 of two 5A/2.5mA specifications; Charactron display circuit 11 is total to cloudy charactron by SM420391 and forms; Indicating circuit 6 is made up of common light emitting diode; Key zone 10 is made up of the touch-switch of 6X6X4.3mm.
The annexation of each element circuit is as follows:
The serial data and line of storage unit 3: storage unit 24C02 and serial time clock line link to each other with two ports (P2.2 and P2.3) in governor circuit 1 general input respectively;
Cool-down dehumidification load control circuit 4: two photoelectrical couplers are controlled the break-make of cooling and dehumidifying loaded work piece power supply respectively in the cool-down dehumidification load control unit, and the light-emitting diodes tube cathode of two photoelectrical couplers (the 2nd pin) links to each other with two ports (P2.0 and P2.1) in governor circuit 1 general input respectively;
Loaded work piece status monitoring circuit 5: the monitoring state of corresponding respectively cooling of the output terminal 1 of two voltage comparators and output terminal 2 and dehumidifying load and linking to each other with two ports (P2.4 and P2.5) in governor circuit 1 general input respectively in the loaded work piece Condition Monitoring Unit circuit;
The anode of 4 pilot lamp connects+the 5V power supply in the indicating circuit 6:LED indicating member, the negative electrode of system, cooling, dehumidifying pilot lamp connect behind the current-limiting resistance respectively with the governor circuit general input in three ports (P1.3, P1.4, P1.5) link to each other the plus earth of power light;
Buzzer alarm circuit 7: the base stage of 9013 triodes connects behind the current-limiting resistance with a port (P1.7) in the governor circuit general input and links to each other in the buzzer alarm circuit;
Metering circuit 8: the serial time clock line of sensor and serial data line link to each other with two ports (P2.6 and P2.7) in governor circuit 1 general input respectively in the sensor unit;
Display button control circuit 9: the reset signal output pin RST that shows, presses control chip CH451 in the key control unit links to each other with the resetting pin of governor circuit; The clock line DCLK of 4 line serial line interfaces, Data In-Line DIN, data load line LOAD, data output and keyboard interrupt line DOUT respectively with the governor circuit general input in three ports (P1.2, P1.1, P1.0) link to each other with external interrupt 0 port (P3.2);
The principle of work of device is as follows:
1 shows the humiture value of current environment: during the device operate as normal, governor circuit sends measuring command by the serial clock and the data line of sensor to sensor; After measuring end, governor circuit reads the humiture value from sensor, and carries out processing such as corresponding calculated, conversion; Then the humiture value is delivered to the display button control module by serial line interface.The display button control module shows corresponding humiture value according to the Data Control charactron that transmits.
2 show the bound controlling value that is provided with: during the device operate as normal, on this device front panel, press " high value " or " low value " key, this actuation of keys will be shown the key assignments that the button control chip detected and preserved respective keys, again by data output and keyboard interrupt line DOUT notice governor circuit.Governor circuit by the serial line interface reading and saving key assignments and from storage chip, read the bound controlling value of having preserved (if " high value " key reads upper limit controlling value according to key assignments; If " low value " key then reads the lower limit controlling value) in governor circuit, then the controlling value that reads is delivered to the display button control module, by this element circuit control charactron the upper limit or lower limit controlling value are shown.
The indication of 3 device self-operating states: device has 4 pilot lamp.At work, power supply, system indicator Chang Liang; Device compares the humiture value of current environment and the controlling value of setting, according to result's size, thus the start and stop state of the corresponding control signal of main control unit output break-make control load of the cathodic control photoelectrical coupler of photoelectrical coupler in the load control circuit.When load is opened, (close Shi Buhui and read load condition), governor circuit just goes to read output signal (the output terminal 1 corresponding cooling load of two voltage comparator corresponding output end in cooling, the dehumidifying load monitoring unit, the corresponding dehumidifying of output terminal 2 loads), judge whether operate as normal of load according to the state of output signal.If loaded work piece is undesired, main control unit is delivered to system's lamp with control signal and is controlled it and extinguish, and delivers to cooling or the dehumidifying lamp is controlled its flicker, delivers to buzzer alarm circuit and controls it and begin to report to the police; If loaded work piece is normal, main control unit is delivered to system's lamp with control signal and is controlled its Chang Liang, delivers to cooling or the dehumidifying lamp is controlled its Chang Liang, delivers to buzzer alarm circuit and controls it and close warning.
4 return difference settings: the return difference value is the poor of higher limit and lower limit, and the return difference setting is the upper lower limit value setting.Be provided with by a series of button operation, in the button operation process, the display button control module detects button operation and preserves the key assignments of button, by interrupt mode notice road main control unit.Main control unit reads the key assignments of button and handles accordingly from the display button control module, temporarily be kept at the data that are provided with in the main control unit then, simultaneously data and control command are delivered to the display button control module, by this element circuit the function of data and corresponding button (is glimmered as charactron, displacement etc.) show, at last after pressing corresponding affirmation button (other principle is the same), the result that main control unit will be provided with delivers to storage unit by temporary storage location in the main control unit and preserves, simultaneously the result is delivered to the display button unit, deliver to charactron by this element circuit again and show.
Claims (4)
1. high-voltage board humiture measure and control device, it is characterized in that: comprise governor circuit (1), and memory circuit (3), cool-down dehumidification load control circuit (4), loaded work piece status monitoring circuit (5), metering circuit (8), display button control circuit (9), indicating circuit (6) and the warning circuit (7) of parallel connection on governor circuit (1) port; Display button control circuit (9) is gone up parallel connection key zone (10), charactron display circuit (11).
2. measure and control device as claimed in claim 1 is characterized in that: the serial data and line of memory circuit (3) and serial time clock line are connected in the general input, output port of governor circuit (1).
3. measure and control device as claimed in claim 1 is characterized in that: the light-emitting diodes tube cathode of two photoelectrical couplers in the cool-down dehumidification load control circuit (4) is connected in the general input, output port of governor circuit (1).
4. measure and control device as claimed in claim 1 is characterized in that: the output terminal and the output terminal of the two voltage comparators in the loaded work piece status monitoring circuit (5) are connected in the general input, output port of governor circuit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201672751U CN201749386U (en) | 2010-04-22 | 2010-04-22 | Temperature and humidity observation and control device for high-voltage cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201672751U CN201749386U (en) | 2010-04-22 | 2010-04-22 | Temperature and humidity observation and control device for high-voltage cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201749386U true CN201749386U (en) | 2011-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201672751U Expired - Fee Related CN201749386U (en) | 2010-04-22 | 2010-04-22 | Temperature and humidity observation and control device for high-voltage cabinet |
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| Country | Link |
|---|---|
| CN (1) | CN201749386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344820A (en) * | 2013-07-23 | 2013-10-09 | 北京合纵科技股份有限公司 | Potential indicator with temperature measuring function |
-
2010
- 2010-04-22 CN CN2010201672751U patent/CN201749386U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344820A (en) * | 2013-07-23 | 2013-10-09 | 北京合纵科技股份有限公司 | Potential indicator with temperature measuring function |
| CN103344820B (en) * | 2013-07-23 | 2015-11-11 | 北京合纵科技股份有限公司 | A kind of potential indicator with temp sensing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20150422 |
|
| EXPY | Termination of patent right or utility model |