CN203117818U - Intelligent semiconductor heat radiation terminal cabinet based on solar electric board - Google Patents
Intelligent semiconductor heat radiation terminal cabinet based on solar electric board Download PDFInfo
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- CN203117818U CN203117818U CN 201220728981 CN201220728981U CN203117818U CN 203117818 U CN203117818 U CN 203117818U CN 201220728981 CN201220728981 CN 201220728981 CN 201220728981 U CN201220728981 U CN 201220728981U CN 203117818 U CN203117818 U CN 203117818U
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- terminal cabinet
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 98
- 230000005855 radiation Effects 0.000 title abstract description 5
- 238000005057 refrigeration Methods 0.000 claims abstract description 20
- 239000013078 crystal Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
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Abstract
The utility model discloses an intelligent semiconductor heat radiation terminal cabinet based on a solar electric board. The intelligent semiconductor heat radiation terminal cabinet comprises an intelligent terminal cabinet, wherein the intelligent terminal cabinet is provided with a solar electric power system and a semiconductor refrigeration sheet arranged in the intelligent terminal cabinet, one end of the semiconductor refrigeration sheet is fixed on an outer wall of the intelligent terminal cabinet, the other end of the semiconductor refrigeration sheet faces inside the intelligent terminal cabinet, the solar electric power system and the semiconductor refrigeration sheet are connected through a control circuit to enable a direction of current passing through the semiconductor refrigeration sheet to be switched, one end of the semiconductor refrigeration sheet which faces inside the intelligent terminal cabinet realizes refrigeration when temperature of the intelligent terminal cabinet is too high, and the one end realizes heat making when temperature of the intelligent terminal cabinet is too low or/ and humidity of the intelligent terminal cabinet is too high. When temperature of the intelligent terminal cabinet is too high, the semiconductor refrigeration sheet realizes refrigeration; when temperature of the intelligent terminal cabinet is too low or/ and humidity of the intelligent terminal cabinet is too high, the semiconductor refrigeration sheet realizes heating making. The intelligent semiconductor heat radiation terminal cabinet can realize effective temperature adjustment to guarantee safe and stable operation of a power station.
Description
Technical field
The utility model relates to the semiconductor heat-dissipating intelligent terminal cabinet based on the sun power electroplax.
Background technology
The continuous development of electrical network makes its requirement for digitizing, informationization and information modelization more and more urgent, and digital transformer substation becomes the developing direction of transformer station.Intelligent terminal is the important component part of digital transformer substation, and the quantity of information of all primary equipments reaches supervisory system by intelligent terminal by optical fiber.The reliability of intelligent terminal directly affects the safe and stable operation of transformer station, intelligent terminal heating itself, and the too high defective incidence of intelligent terminal that makes of intelligent terminal in-cabinet temperature is high, the safe and stable operation of serious threat transformer station.Therefore, how effectively the intelligent terminal cabinet to be carried out adjustment, the safe and stable operation of transformer station is had important meaning.
Summary of the invention
Problem to be solved in the utility model provides the semiconductor heat-dissipating intelligent terminal cabinet based on the sun power electroplax, can effectively carry out temperature and humidity to the intelligent terminal cabinet and regulate, and guarantees the stable operation of equipment.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: based on the semiconductor heat-dissipating intelligent terminal cabinet of sun power electroplax, comprise the intelligent terminal cabinet, described intelligent terminal is provided with solar electric power system and semiconductor chilling plate cashier's office in a shop, described semiconductor chilling plate is located in the intelligent terminal cabinet and an end of semiconductor chilling plate is fixed on the outer wall of intelligent terminal cabinet the other end towards intelligent terminal cabinet inside, is connected the direction of current that makes by semiconductor chilling plate by control circuit between described solar electric power system and the semiconductor chilling plate and can switches realize that the end of semiconductor chilling plate towards intelligent terminal cabinet inside freezes when intelligent terminal cabinet temperature is too high, temperature is crossed low or/and humidity heats when too high.Semiconductor chilling plate freezed to it when intelligent terminal cabinet temperature was too high, intelligent terminal cabinet temperature cross low or/and humidity when too high semiconductor chilling plate it is heated.
Improved, described control circuit comprises first circuit and second circuit, during described first circuit turn-on in the semiconductor chilling plate when sense of current and second circuit conducting in the semiconductor chilling plate sense of current opposite, described first circuit is provided with control first circuit turn-on whether first switch, semiconductor chilling plate is towards the end refrigeration of intelligent terminal cabinet inside behind described first switch closure, described second circuit is provided with control second circuit conducting whether second switch, and semiconductor chilling plate heats towards an end of intelligent terminal cabinet inside after the described second switch closure.When intelligent terminal cabinet temperature is too high closed first switch make semiconductor chilling plate towards the end refrigeration of intelligent terminal cabinet inside to its cooling, intelligent terminal cabinet temperature cross low or/and humidity when too high closed second switch the end of semiconductor chilling plate towards intelligent terminal cabinet inside heated its intensification or/and dehumidify.
Improved, also comprise temperature and humidity control system, described temperature and humidity control system is connected closure and the disconnection of control first switch and second switch with control circuit by A.C. contactor.By temperature and humidity control system control semiconductor chilling plate towards the refrigeration of an end of intelligent terminal cabinet inside or heat.
Improved, described temperature and humidity control system comprises Temperature Humidity Sensor and temperature and humidity controller, described A.C. contactor comprises high temperature A.C. contactor and low temperature A.C. contactor, the high temperature of described high temperature A.C. contactor is often opened main contact and Temperature Humidity Sensor, the temperature and humidity controller circuit connects, when the temperature of sensing when Temperature Humidity Sensor is higher than the upper temperature limit that temperature and humidity controller sets, described temperature and humidity controller control high temperature is often opened the closed conducting of main contact, the low temperature of described low temperature A.C. contactor is often opened main contact and Temperature Humidity Sensor, the temperature and humidity controller circuit connects, when temperature that Temperature Humidity Sensor is sensed is lower than lowest temperature that temperature and humidity controller sets or/and humidity is higher than on the humidity that Temperature Humidity Sensor sets in limited time, described temperature and humidity controller control low temperature is often opened the closed conducting of main contact, the high temperature that described first switch is made as the high temperature A.C. contactor is often opened auxiliary contact and is followed high temperature and often open the main contact closure, follow high temperature and often open main contact and disconnect, the low temperature that described second switch is made as the low temperature A.C. contactor is often opened auxiliary contact and is followed low temperature and often open the main contact closure, follow low temperature and often open the main contact disconnection.High temperature was often opened the main contact conducting when temperature of the terminal intelligent cabinet that Temperature Humidity Sensor is sensed was higher than the upper temperature limit that temperature and humidity controller sets, high temperature is often opened auxiliary contact and is followed closure to make first circuit turn-on, and semiconductor chilling plate is terminal intelligent cabinet refrigeration cool-down; The temperature of the terminal intelligent cabinet that Temperature Humidity Sensor is sensed is lower than lowest temperature that temperature and humidity controller sets and often opens the main contact conducting or/and humidity is higher than on the humidity that Temperature Humidity Sensor sets in limited time low temperature, low temperature is often opened auxiliary contact and is followed closure to make the second circuit conducting, and semiconductor chilling plate heats up or/and dehumidifying for the terminal intelligent cabinet heats.
Improved, described solar electric power system comprises solar module and controller for solar, and described solar module, controller for solar and semiconductor chilling plate are connected by control circuit.
Improved, described solar electric power system also comprises accumulator, and described accumulator is connected in parallel on the two ends of solar module.When solar module is worked accumulator is carried out floating charge, the electric energy that stores in the output accumulator when solar module can't be worked guarantees the operate as normal of semiconductor chilling plate.
Improved, described intelligent terminal is provided with some semiconductor chilling plates cashier's office in a shop, and some semiconductor chilling plates are connected in parallel in the solar electric power system.The polylith semiconductor chilling plate is worked to the cooling of intelligent terminal cabinet simultaneously or is heated up.
Improved, described semiconductor chilling plate is fixed on an intelligent terminal end cashier's office in a shop and is provided with heat radiator.The exchange of finned accelerated heat on the semiconductor chilling plate makes semiconductor chilling plate reach tangible refrigeration cool-down effect towards an end of intelligent terminal cabinet inside when intelligent terminal cabinet temperature is too high.
Improved, the outer wall of described intelligent terminal cabinet is provided with opening, and described heat radiator is fixed on the outer wall of opening part, and described semiconductor chilling plate is located in the opening and semiconductor chilling plate is fixed on an intelligent terminal end and heat radiator applying cashier's office in a shop.By heat radiator and cooperating of opening making semiconductor chilling plate be fixed in the outer wall of intelligent terminal cabinet.
Improved, described solar module is composed in parallel by two solar panels, and described solar panel is made up of 125 single crystal battery sheets.
Beneficial effect:
After adopting technique scheme, this utility model can effectively be carried out temperature and humidity to the intelligent terminal cabinet and regulate based on the semiconductor heat-dissipating intelligent terminal cabinet of sun power electroplax, guarantees the stable operation of equipment.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the connection diagram of solar electric power system, temperature and humidity control system and semiconductor chilling plate in the utility model;
Fig. 3 is the circuit catenation principle figure of each parts in the utility model.
Embodiment
As shown in Figure 1 to Figure 3, semiconductor heat-dissipating intelligent terminal cabinet based on the sun power electroplax, comprise intelligent terminal cabinet 1, described intelligent terminal is provided with solar electric power system and semiconductor chilling plate 8 cashier's office in a shop, described semiconductor chilling plate is located in the intelligent terminal cabinet and an end of semiconductor chilling plate is fixed on the outer wall of intelligent terminal cabinet the other end towards intelligent terminal cabinet inside, is connected the direction of current that makes by semiconductor chilling plate by control circuit between described solar electric power system and the semiconductor chilling plate and can switches realize that the end of semiconductor chilling plate towards intelligent terminal cabinet inside freezes when intelligent terminal cabinet temperature is too high, temperature is crossed low or/and humidity heats when too high.
Described control circuit comprises first circuit and second circuit, during described first circuit turn-on in the semiconductor chilling plate when sense of current and second circuit conducting in the semiconductor chilling plate sense of current opposite, described first circuit is provided with control first circuit turn-on whether first switch, semiconductor chilling plate is towards the end refrigeration of intelligent terminal cabinet inside behind described first switch closure, described second circuit is provided with control second circuit conducting whether second switch, and semiconductor chilling plate heats towards an end of intelligent terminal cabinet inside after the described second switch closure.
Also comprise temperature and humidity control system, described temperature and humidity control system is connected closure and the disconnection of control first switch and second switch with control circuit by A.C. contactor 5, described temperature and humidity control system comprises Temperature Humidity Sensor 7 and temperature and humidity controller 6, described A.C. contactor comprises high temperature A.C. contactor and low temperature A.C. contactor, the high temperature of described high temperature A.C. contactor is often opened main contact and Temperature Humidity Sensor, the temperature and humidity controller circuit connects, when the temperature of sensing when Temperature Humidity Sensor is higher than the upper temperature limit that temperature and humidity controller sets, described temperature and humidity controller control high temperature is often opened the closed conducting of main contact, the low temperature of described low temperature A.C. contactor is often opened main contact and Temperature Humidity Sensor, the temperature and humidity controller circuit connects, when temperature that Temperature Humidity Sensor is sensed is lower than lowest temperature that temperature and humidity controller sets or/and humidity is higher than on the humidity that Temperature Humidity Sensor sets in limited time, described temperature and humidity controller control low temperature is often opened the closed conducting of main contact, the high temperature that described first switch is made as the high temperature A.C. contactor is often opened auxiliary contact and is followed high temperature and often open the main contact closure, follow high temperature and often open main contact and disconnect, the low temperature that described second switch is made as the low temperature A.C. contactor is often opened auxiliary contact and is followed low temperature and often open the main contact closure, follow low temperature and often open the main contact disconnection.
Described solar electric power system comprises solar module 2 and controller for solar 3, described solar module, controller for solar and semiconductor chilling plate are connected by control circuit, described solar electric power system also comprises accumulator 4, and described accumulator is connected in parallel on the two ends of solar module.Described solar module is composed in parallel by two solar panels, and described solar panel is made up of 125 single crystal battery sheets.
Described intelligent terminal is provided with some semiconductor chilling plates cashier's office in a shop, and some semiconductor chilling plates are connected in parallel in the solar electric power system.Described semiconductor chilling plate is fixed on an intelligent terminal end cashier's office in a shop and is provided with heat radiator 9, the outer wall of described intelligent terminal cabinet is provided with opening, described heat radiator is fixed on the outer wall of opening part, described semiconductor chilling plate is located in the opening and semiconductor chilling plate is fixed on an intelligent terminal end and heat radiator applying cashier's office in a shop, the two ends of described semiconductor chilling plate are equipped with heat-conducting silicone grease, and the link with semiconductor chilling plate on the described heat radiator is provided with heat conductive silica gel.Described heat radiator adopts wing formula structure.
Described solar module is installed in the top of intelligent terminal cabinet shell, and described intelligent terminal cabinet inside is provided with draw-in groove, and described controller for solar, Temperature Humidity Sensor, temperature and humidity controller, A.C. contactor are fixed on the draw-in groove of intelligent terminal cabinet inside.
Described solar module is converted into electric energy with solar radiation luminous energy under illumination, with galvanic form output.Described controller for solar adopts width modulation (PWM) charge mode technology, has that solar cell is anti-reverse, accumulator is anti-reverse, accumulator super-charge crosses and put protection, load and transship defencive functions such as short-circuit protection, lightning protection.Described solar module battery is converted to about 17%, and peak power is 120W, and optimum operating voltage is 18.8V, and maximum operating currenbt is 5.4A; The input rated current of described controller for solar is 20A, and the battery pack nominal voltage is 12.8V, and nominal capacity is 20Ah; Described temperature and humidity controller model is the precious KWC-1T in Zhejiang, Hangzhou, and its input voltage is AC220V, and output voltage is AC220V, temperature measurement accuracy is ± 1 ℃, the moisture measurement precision is ± 3%RH, and temperature is controlled to be 0 ℃~75 ℃, and humidity is controlled to be 20%RH~94%RH.A.C. contactor is global CJX1-22, and its rated voltage is AC220V; Described semiconductor chilling plate model is TEC1-12706, and real work voltage is 12V, and maximum refrigeration work consumption is 54.1W, and maximum temperature difference is 67 ℃.
During actual the use, Temperature Humidity Sensor induced intelligent terminal cabinet temperature inside is that voltage is transported to temperature and humidity controller with this temperature inversion, if the temperature of sensing is higher than the upper temperature limit that temperature and humidity controller is set, the high temperature of high temperature A.C. contactor is often opened the main contact conducting, make first circuit turn-on make controller for solar control solar module output DC for semiconductor chilling plate work thereby high temperature is often opened the auxiliary contact closure, this moment, semiconductor chilling plate was that the refrigeration end other end that constantly absorbs heat is that the intelligent terminal cabinet is lowered the temperature for heating the continuous heat release of end towards an end of intelligent terminal cabinet; Humidity is higher than on the humidity that temperature and humidity controller sets in limited time if the temperature of sensing is lower than lowest temperature that temperature and humidity controller sets, the low temperature of low temperature A.C. contactor is often opened the main contact conducting, make the second circuit conducting make controller for solar control solar module output DC supply semiconductor chilling plate work thereby low temperature is often opened the auxiliary contact closure, this moment, semiconductor chilling plate was that the continuous heat absorption of refrigeration end is that intelligent terminal cabinet heat temperature raising is or/and dehumidifying towards an end of intelligent terminal cabinet for heating the continuous heat release other end of end.Solar panel provides a part of electric energy to semiconductor chilling plate when the solar module operate as normal, unnecessary electric energy is transported to accumulator by controller for solar and stores, when illumination is not enough solar module can't the situation of operate as normal under, discharge the electric energy that stores in the accumulator for semiconductor chilling plate work.
Except above preferred embodiment, the utility model also has other embodiment, those skilled in the art can make various changes and distortion according to the utility model, only otherwise break away from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
Claims (10)
1. based on the semiconductor heat-dissipating intelligent terminal cabinet of sun power electroplax, comprise intelligent terminal cabinet (1), it is characterized in that: described intelligent terminal is provided with solar electric power system and semiconductor chilling plate (8) cashier's office in a shop, described semiconductor chilling plate is located in the intelligent terminal cabinet and an end of semiconductor chilling plate is fixed on the outer wall of intelligent terminal cabinet the other end towards intelligent terminal cabinet inside, is connected the direction of current that makes by semiconductor chilling plate by control circuit between described solar electric power system and the semiconductor chilling plate and can switches realize that the end of semiconductor chilling plate towards intelligent terminal cabinet inside freezes when intelligent terminal cabinet temperature is too high, temperature is crossed low or/and humidity heats when too high.
2. the semiconductor heat-dissipating intelligent terminal cabinet based on the sun power electroplax according to claim 1, it is characterized in that: described control circuit comprises first circuit and second circuit, during described first circuit turn-on in the semiconductor chilling plate when sense of current and second circuit conducting in the semiconductor chilling plate sense of current opposite, described first circuit is provided with control first circuit turn-on whether first switch, semiconductor chilling plate is towards the end refrigeration of intelligent terminal cabinet inside behind described first switch closure, described second circuit is provided with control second circuit conducting whether second switch, and semiconductor chilling plate heats towards an end of intelligent terminal cabinet inside after the described second switch closure.
3. the semiconductor heat-dissipating intelligent terminal cabinet based on the sun power electroplax according to claim 2, it is characterized in that: also comprise temperature and humidity control system, described temperature and humidity control system is connected closure and the disconnection of control first switch and second switch with control circuit by A.C. contactor (5).
4. the semiconductor heat-dissipating intelligent terminal cabinet based on the sun power electroplax according to claim 3, it is characterized in that: described temperature and humidity control system comprises Temperature Humidity Sensor (7) and temperature and humidity controller (6), described A.C. contactor comprises high temperature A.C. contactor and low temperature A.C. contactor, the high temperature of described high temperature A.C. contactor is often opened main contact and Temperature Humidity Sensor, the temperature and humidity controller circuit connects, when the temperature of sensing when Temperature Humidity Sensor is higher than the upper temperature limit that temperature and humidity controller sets, described temperature and humidity controller control high temperature is often opened the closed conducting of main contact, the low temperature of described low temperature A.C. contactor is often opened main contact and Temperature Humidity Sensor, the temperature and humidity controller circuit connects, when temperature that Temperature Humidity Sensor is sensed is lower than lowest temperature that temperature and humidity controller sets or/and humidity is higher than on the humidity that Temperature Humidity Sensor sets in limited time, described temperature and humidity controller control low temperature is often opened the closed conducting of main contact, the high temperature that described first switch is made as the high temperature A.C. contactor is often opened auxiliary contact and is followed high temperature and often open the main contact closure, follow high temperature and often open main contact and disconnect, the low temperature that described second switch is made as the low temperature A.C. contactor is often opened auxiliary contact and is followed low temperature and often open the main contact closure, follow low temperature and often open the main contact disconnection.
5. the semiconductor heat-dissipating intelligent terminal cabinet based on the sun power electroplax according to claim 1, it is characterized in that: described solar electric power system comprises solar module (2) and controller for solar (3), and described solar module, controller for solar and semiconductor chilling plate are connected by control circuit.
6. the semiconductor heat-dissipating intelligent terminal cabinet based on the sun power electroplax according to claim 5 is characterized in that: described solar electric power system also comprises accumulator (4), and described accumulator is connected in parallel on the two ends of solar module.
7. according to each described semiconductor heat-dissipating intelligent terminal cabinet based on the sun power electroplax of claim 1 to 6, it is characterized in that: described intelligent terminal is provided with some semiconductor chilling plates cashier's office in a shop, and some semiconductor chilling plates are connected in parallel in the solar electric power system.
8. the semiconductor heat-dissipating intelligent terminal cabinet based on the sun power electroplax according to claim 7, it is characterized in that: described semiconductor chilling plate is fixed on an intelligent terminal end cashier's office in a shop and is provided with heat radiator (9).
9. the semiconductor heat-dissipating intelligent terminal cabinet based on the sun power electroplax according to claim 8, it is characterized in that: the outer wall of described intelligent terminal cabinet is provided with opening, described heat radiator is fixed on the outer wall of opening part, and described semiconductor chilling plate is located in the opening and semiconductor chilling plate is fixed on an intelligent terminal end and heat radiator applying cashier's office in a shop.
10. the semiconductor heat-dissipating intelligent terminal cabinet based on the sun power electroplax according to claim 5, it is characterized in that: described solar module is composed in parallel by two solar panels, and described solar panel is made up of 125 single crystal battery sheets.
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CN 201220728981 CN203117818U (en) | 2012-12-26 | 2012-12-26 | Intelligent semiconductor heat radiation terminal cabinet based on solar electric board |
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CN 201220728981 CN203117818U (en) | 2012-12-26 | 2012-12-26 | Intelligent semiconductor heat radiation terminal cabinet based on solar electric board |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103092232A (en) * | 2012-12-26 | 2013-05-08 | 金华电业局 | Semiconductor heat dissipating intelligent terminal cabinet based on solar energy electric plate |
CN103794991A (en) * | 2014-01-27 | 2014-05-14 | 国电光伏有限公司 | Solar electrical cabinet with automatic temperature adjusting function |
CN105025687A (en) * | 2015-05-29 | 2015-11-04 | 国家电网公司 | Low-temperature-triggered heating device for mobile electronic equipment |
CN105912052A (en) * | 2016-06-13 | 2016-08-31 | 无锡虹业自动化工程有限公司 | Photovoltaic-plate power-supply outdoor dedicated warming and cooling dual purpose control cabinet |
CN111536656A (en) * | 2020-05-27 | 2020-08-14 | 郑州铁路职业技术学院 | Real-time adjusting method for environmental parameters of financial warehouse |
CN111552338A (en) * | 2020-05-27 | 2020-08-18 | 郑州铁路职业技术学院 | Environmental conditioning system of financial warehouse |
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2012
- 2012-12-26 CN CN 201220728981 patent/CN203117818U/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103092232A (en) * | 2012-12-26 | 2013-05-08 | 金华电业局 | Semiconductor heat dissipating intelligent terminal cabinet based on solar energy electric plate |
CN103092232B (en) * | 2012-12-26 | 2014-12-17 | 金华电业局 | Semiconductor heat dissipating intelligent terminal cabinet based on solar energy electric plate |
CN103794991A (en) * | 2014-01-27 | 2014-05-14 | 国电光伏有限公司 | Solar electrical cabinet with automatic temperature adjusting function |
CN105025687A (en) * | 2015-05-29 | 2015-11-04 | 国家电网公司 | Low-temperature-triggered heating device for mobile electronic equipment |
CN105912052A (en) * | 2016-06-13 | 2016-08-31 | 无锡虹业自动化工程有限公司 | Photovoltaic-plate power-supply outdoor dedicated warming and cooling dual purpose control cabinet |
CN111536656A (en) * | 2020-05-27 | 2020-08-14 | 郑州铁路职业技术学院 | Real-time adjusting method for environmental parameters of financial warehouse |
CN111552338A (en) * | 2020-05-27 | 2020-08-18 | 郑州铁路职业技术学院 | Environmental conditioning system of financial warehouse |
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Granted publication date: 20130807 Termination date: 20191226 |