CN202548678U - Digital display temperature and humidity controller - Google Patents
Digital display temperature and humidity controller Download PDFInfo
- Publication number
- CN202548678U CN202548678U CN2012200651954U CN201220065195U CN202548678U CN 202548678 U CN202548678 U CN 202548678U CN 2012200651954 U CN2012200651954 U CN 2012200651954U CN 201220065195 U CN201220065195 U CN 201220065195U CN 202548678 U CN202548678 U CN 202548678U
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- temperature
- humidity
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- cabinet
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Abstract
The utility model discloses a digital display temperature and humidity controller, which comprises a power supply, a temperature and humidity sensor, a microprocessor unit (MPU), an execution module and a display module, wherein the temperature and humidity sensor is connected with the MPU through an analog/digital (A/D) converter; the power supply is respectively connected with the MPU and the A/D converter; the MPU is respectively connected with the execution module and the display module; two photoelectric isolators are connected between the MPU and the execution module; and a digital regulator is connected to the MPU. The photoelectric isolators are arranged between the MPU and the execution module, so that the signal interference can be prevented, and the digital display temperature and humidity controller has high load capacity and is high in precision and driving power and long in service life.
Description
Technical field
The utility model relates to a kind of measure and control instrument, particularly relates to a kind ofly being used for electric system temperature and humidity being required the digital display temperature and humidity controller than higher power distribution cabinet, switch board and operating mechanism case etc.
Background technology
In electric system, in the sealing cabinets such as various power distribution cabinets, switch board and operating mechanism case a large amount of electric elements are installed, and have a lot of electrified bodys exposed outside.When the air humidity in the cabinet reaches certain proportion, can produce condensation at a certain temperature, attached to electrified body surface, be prone to take place phenomenons such as creepage, flashover, short circuit and puncture, accidents caused, the safety of serious threat electric system.There are a lot of electric elements that environment temperature is had certain requirement in the cabinet; Too high or cross and lowly all can make its unstable properties when temperature; Precision reduces, and can exert an influence to material property, and shorten mechanical life; The safe operation of the equipment of giving causes great threat, and therefore temperature and humidity controller need be set in cabinet comes the humiture in the regulating and controlling cabinet.MPU directly is connected with execution module in traditional temperature and humidity controller, be easy to receive the interference of signal, and carrying load ability is poor.
Summary of the invention
To the deficiency of prior art, the purpose of the utility model is, a kind of anti-interference and all very strong digital display temperature and humidity controller of carrying load ability is provided.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of digital display temperature and humidity controller; Comprise power supply, Temperature Humidity Sensor, MPU, execution module and display module; Described Temperature Humidity Sensor links to each other with MPU through A/D converter, and described power supply links to each other with A/D converter with MPU respectively, and described MPU links to each other with display module with execution module respectively; It is characterized in that: between described MPU and execution module, be connected with photoisolator, on described MPU, also be connected with digital governer.
Aforesaid a kind of digital display temperature and humidity controller is characterized in that: described execution module is well heater and fan.
Aforesaid a kind of digital display temperature and humidity controller is characterized in that: described display module is the light-emitting diode display that shows current temperature value, humidity value and information is set.
Compared with prior art, the utility model has the advantages that: between MPU and execution module, be provided with photoisolator, not only can prevent the interference of stop signal, and have stronger carrying load ability.The utility model precision is high, driving force is strong, long service life.
Description of drawings
Fig. 1 is the theory diagram of the utility model.
Embodiment
For further disclosing the technical scheme of the utility model; Now be described with reference to the accompanying drawings the embodiment of the utility model: as shown in Figure 1; A kind of digital display temperature and humidity controller comprises power supply, Temperature Humidity Sensor 1, MPU, execution module and display module, and Temperature Humidity Sensor 1 links to each other with MPU through A/D converter; Power supply links to each other with A/D converter with MPU respectively; MPU links to each other with display module with execution module respectively, and execution module is well heater 2 and fan 3, and display module is the light-emitting diode display that shows current temperature value, humidity value and information is set.Between MPU and execution module, be connected with photoisolator, not only can prevent the interference of stop signal, and have stronger carrying load ability.On MPU, also be connected with digital governer, be used for setting the temperature and humidity of air in the cabinet.
Principle of work:
The staff sets the temperature and humidity scope of air in the cabinet according to power equipment place site environment situation:
1. air draft cooling
Like the air draft cooling scope that sets in the somewhere is 45 ℃-50 ℃; When environment temperature in the cabinet is higher than 50 ℃; Temperature Humidity Sensor 1 in the cabinet passes to MPU with temperature signal, and MPU starts fan 3 work in the execution module according to range of set temperature, continues air draft to reduce in-cabinet temperature.When fan 3 after work a period of times, in a single day in-cabinet temperature reaches 45 ℃, and Temperature Humidity Sensor in the cabinet 1 passes to MPU with temperature signal, and MPU stops cooling according to range of set temperature, and fan 3 is no longer worked; When in-cabinet temperature was higher than 50 ℃ again, fan 3 restarted air draft according to instruction, and in-cabinet temperature is remained within the range of set temperature always.
2. low-temperature heat
Like the low-temperature heat scope that sets in the somewhere is 5 ℃-15 ℃; When environment temperature in the cabinet is lower than 5 ℃; Temperature Humidity Sensor 1 in the cabinet passes to MPU with temperature signal, and MPU starts well heater 2 work in the execution module according to range of set temperature, continues heating to improve in-cabinet temperature.When well heater 2 after work a period of times, in a single day in-cabinet temperature reaches 15 ℃, and Temperature Humidity Sensor in the cabinet 1 passes to MPU with temperature signal, and MPU stops to heat up according to range of set temperature, and well heater 2 is no longer worked; When in-cabinet temperature was lower than 5 ℃ again, well heater 2 restarted heating according to instruction, and in-cabinet temperature is remained within the range of set temperature always.
3. clearing damp heating
Like the humidity range that sets in the somewhere is 75%RH-85%RH; When ambient humidity is higher than 85%RH in the cabinet; Temperature Humidity Sensor 1 passes to MPU with moisture signal; MPU starts well heater 2 work according to the humidity range of setting, and reduces air humidity in the cabinet through well heater 2 heating, reaches the effect of clearing damp.When ambient humidity was lower than 75%RH in the cabinet, Temperature Humidity Sensor 1 passed to MPU with moisture signal, and MPU stops well heater 2 work according to the humidity range of setting.When humidity in the cabinet was higher than 85%RH again, well heater 2 restarted heating according to instruction, made that humidity remains within the humidity range of setting always in the cabinet, no condensation generation.
More than, the basic design and the ultimate principle of the utility model have been set forth through introduction to listed embodiment.But the utility model never is limited to above-mentioned listed embodiment, and every equivalent variations, improvement of doing based on the technical scheme of the utility model reaches and deliberately become of inferior quality behavior, all should belong to the protection domain of the utility model.
Claims (3)
1. digital display temperature and humidity controller; Comprise power supply, Temperature Humidity Sensor, MPU, execution module and display module; Described Temperature Humidity Sensor links to each other with MPU through A/D converter, and described power supply links to each other with A/D converter with MPU respectively, and described MPU links to each other with display module with execution module respectively; It is characterized in that: between described MPU and execution module, be connected with photoisolator, on described MPU, also be connected with digital governer.
2. a kind of digital display temperature and humidity controller according to claim 1 is characterized in that: described execution module is well heater and fan.
3. a kind of digital display temperature and humidity controller according to claim 1 is characterized in that: described display module is the light-emitting diode display that shows current temperature value, humidity value and information is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200651954U CN202548678U (en) | 2012-02-27 | 2012-02-27 | Digital display temperature and humidity controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200651954U CN202548678U (en) | 2012-02-27 | 2012-02-27 | Digital display temperature and humidity controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202548678U true CN202548678U (en) | 2012-11-21 |
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ID=47169286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200651954U Expired - Fee Related CN202548678U (en) | 2012-02-27 | 2012-02-27 | Digital display temperature and humidity controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202548678U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102541127A (en) * | 2012-02-27 | 2012-07-04 | 苏州苏海亚电气有限公司 | Digital-display temperature and humidity controller |
| CN106774538A (en) * | 2016-11-25 | 2017-05-31 | 国网河南省电力公司平顶山供电公司 | 10 road Full automatic digital meggers |
-
2012
- 2012-02-27 CN CN2012200651954U patent/CN202548678U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102541127A (en) * | 2012-02-27 | 2012-07-04 | 苏州苏海亚电气有限公司 | Digital-display temperature and humidity controller |
| CN106774538A (en) * | 2016-11-25 | 2017-05-31 | 国网河南省电力公司平顶山供电公司 | 10 road Full automatic digital meggers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20130227 |