CN204577896U - A kind of dehumidifying switch cubicle - Google Patents
A kind of dehumidifying switch cubicle Download PDFInfo
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- CN204577896U CN204577896U CN201520328787.4U CN201520328787U CN204577896U CN 204577896 U CN204577896 U CN 204577896U CN 201520328787 U CN201520328787 U CN 201520328787U CN 204577896 U CN204577896 U CN 204577896U
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- electromagnet
- switch cubicle
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Abstract
The utility model discloses a kind of dehumidifying switch cubicle, comprise cabinet door and cabinet, described cabinet inner surface is installed with except wet tank, described dehumidifying case comprises casing and is arranged on the drier of box house, and described casing is provided with an opening, and described opening is provided with capping, described capping is provided with magnetic patch, described casing is provided with electromagnet, and in opposite directions, described electromagnet is connected with humidity control circuit for described electromagnet and magnetic patch Same Name of Ends; Described humidity control circuit comprises induction module, for induction apparatus cabinet humidity, and humidity is converted into sampled voltage; Base modules, provides a reference voltage; Comparison module, is connected to induction module and base modules, when sampled voltage is greater than reference voltage, exports executive signal; Executive Module, is connected to comparison module, when receiving executive signal, controlling electromagnet and obtaining electric, with dehydrating unit and structure simply can not cause energy waste.
Description
Technical field
The utility model relates to a kind of switch cubicle, and more particularly, it relates to a kind of dehumidifying switch cubicle.
Background technology
Switch cubicle processes by steel matter the cupboard normally worked for protection components and parts.Electric equipment require relative humidity can not more than 90%(25 DEG C and following).As can be seen here, equipment has an accident at night, and humidity is too high is the principal element producing equipment breakdown.In the past, a lot of people thinks due to the late into the night, load reduction, the cause that voltage raises, and it seems now it is invalid.Because the automaticity of modern power systems is very high, voltage is always stable.So in switch engineering, when relative humidity is greater than 80-%, be then called high humidity.
Malaria is conducive to the growth of mould.Practice shows when temperature is 25 ~ 30 degree, when relative humidity is 75% ~ 95%, is the good condition of fungus growth.So, the speed of growth of mould will be accelerated if drawn badly.Containing a large amount of moisture in mould, the insulation property of equipment will be reduced greatly.To the insulating material of some porous, mould root can also be deep into the inside of material, causes insulation breakdown.The acidic materials gone out secreted by the metabolic process of mould and insulating material interact, and make apparatus insulated hydraulic performance decline.Humid air will make the conducting metal in power equipment, magnetic conduction silicon steel sheet, and metal shell corrosion.By reducing the performance and used life of equipment, even cause switch fault.
And directly on switch cubicle, increasing dehumidifier, energy consumption is too large, easily causes the wasting of resources.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of with dehydrating unit and structure simply can not cause the Electric Appliance Cabinet of energy waste.
For achieving the above object, the utility model provides following technical scheme: a kind of dehumidifying switch cubicle, comprise cabinet door and cabinet, described cabinet inner surface is installed with except wet tank, and described dehumidifying case comprises casing and is arranged on the drier of box house, described casing is provided with an opening, described opening is provided with capping, and described capping is provided with magnetic patch, and described casing is provided with electromagnet, in opposite directions, described electromagnet is connected with humidity control circuit for described electromagnet and magnetic patch Same Name of Ends; Described humidity control circuit comprises induction module, for induction apparatus cabinet humidity, and humidity is converted into sampled voltage; Base modules, provides a reference voltage; Comparison module, is connected to induction module and base modules, when sampled voltage is greater than reference voltage, exports executive signal; Executive Module, is connected to comparison module, when receiving executive signal, controlling electromagnet and obtaining electric.
The utility model can be set to further: described humidity control circuit comprises Delayed Alarm module, described Delayed Alarm module installation has the first Preset Time, being connected to comparison module, when receiving continuous print executive signal more than the first Preset Time, reminding user's cabinet humidity abnormal.
The utility model can be set to further: described induction module comprises the first resistance and positive humidity coefficient humistor that are arranged in series, and the node that described first resistance and positive humidity coefficient humistor couple provides sampled voltage.
The utility model can be set to further: described base modules comprises the second resistance, the 3rd resistance, the 4th resistance that are arranged in series successively, and the node that described 3rd resistance and the 4th resistance couple provides reference voltage.
The utility model can be set to further: described 4th resistance is adjustable resistance.
The utility model can be set to further: described comparison module comprises a comparator, and its positive input terminal is connected to sampled voltage, and its negative input end is connected to reference voltage; Divider resistance string, be coupled to comparator output terminal and ground hold between, comprise the 5th resistance and the 6th resistance that are arranged in series; Switching tube, its controlled terminal is connected to the node that the 5th resistance and the 6th resistance couple; Relay coil, its controlled terminal is coupled to switching tube, and when described switching tube conducting, relay coil obtains electric transmission executive signal.
The utility model can be set to further: described Executive Module comprises the execution normally opened contact be series between electromagnet and external power source, described execution normally-closed contact is controlled by described relay coil, when performing normally-closed contact and closing, control described electromagnet and obtain electric.
The utility model can be set to further: described Delayed Alarm module comprises relay normally open contact, and described relay normally open contact is controlled by relay coil; Time-delay relay, provides the first Preset Time, and its coil is coupled to relay normally open contact; Alarm portion, comprises the buzzer and indicator light that are arranged in series, when the normally opened contact of time-delay relay closes, described buzzer and indicator light enable.
By adopting technique scheme, realize the detection to Electric Appliance Cabinet interior humidity by ball bearing made using, when humidity is higher than preset value, be judged as that humidity is too high, open except wet tank simultaneously, drier except wet tank inside is contacted with air, moisture absorption is carried out to cabinet, and after ambient humidity reduces, capping closes automatically, make drier can not carry out moisture absorption when ambient humidity is lower, make casing humidity too low, waste drier access times simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model outward appearance shaft side figure;
Fig. 2 is the utility model dehumidifying box structure schematic diagram;
Fig. 3 is the utility model circuit theory diagrams.
Reference numeral: 1a, cabinet door; 2a, cabinet; 3a, except wet tank; 31a, casing; 32a, capping; 33a, magnetic patch; 34a, electromagnet; 1, base modules; 2, induction module; 3, comparison module; 4, Executive Module; 5, Delayed Alarm module.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model embodiment is described further.
As shown in Figure 1, a kind of dehumidifying switch cubicle, comprise cabinet door 1a and cabinet 2a, described cabinet 2a inner surface is installed with except wet tank 3a, the described wet tank 3a that removes comprises casing 31a and is arranged on the drier of casing 31a inside, with reference to Fig. 2, described casing 31a is provided with an opening, and described opening is provided with capping 32a, described capping 32a is provided with magnetic patch 33a, described casing 31a is provided with electromagnet 34a, and in opposite directions, described electromagnet 34a is connected with humidity control circuit for described electromagnet 34a and magnetic patch 33a Same Name of Ends; With reference to shown in Fig. 3 and Fig. 2, described humidity control circuit comprises:
Induction module 2, for induction apparatus cabinet humidity, and is converted into sampled voltage by humidity; Comprise the first resistance R1 and positive humidity coefficient humistor CP that are arranged in series, the node that described first resistance R1 and positive humidity coefficient humistor CP couples provides sampled voltage.First resistance R1 resistance is set to 470 ohm, and positive humidity coefficient humistor CP is preferably MS01-A.
Base modules 1, provides a reference voltage; Base modules 1 comprises the second resistance R2, the 3rd resistance R3, the 4th resistance R4 that are arranged in series successively, and the node that described 3rd resistance R3 and the 4th resistance R4 couples provides reference voltage.Described 4th resistance R4 is adjustable resistance.Second resistance R2 resistance is set to 470 ohm, and the 3rd resistance R3 resistance is set to 100 ohm, and the 4th resistance R4 maximum value is set to 1000 ohm.
Comparison module 3, is connected to induction module 2 and base modules 1, when sampled voltage is greater than reference voltage, exports executive signal; Comprise a comparator, its positive input terminal is connected to sampled voltage, and its negative input end is connected to reference voltage; Divider resistance string, be coupled to comparator output terminal and ground hold between, comprise the 5th resistance R5 and the 6th resistance R6 that are arranged in series; Switching tube Q1, its controlled terminal is connected to the node that the 5th resistance R5 and the 6th resistance R6 couples; Relay coil KM1, its controlled terminal is coupled to switching tube, and when described switching tube Q1 conducting, relay coil KM1 obtains electric transmission executive signal.Comparator signal elects LM335 as, and the 5th resistance R5 resistance elects 50 ohm as, and the 6th resistance R6 resistance elects 100 ohm as, and switching tube Q1 elects NPN triode as.
Executive Module 4, is connected to comparison module 3, when receiving executive signal, controlling electromagnet 34a and obtaining electric.Be series at the execution normally opened contact KM1 between electromagnet 34a and external power source, described execution normally-closed contact is controlled by described relay coil KM1, when performing normally-closed contact and closing, controls described electromagnet 34a and obtains electric.
Delayed Alarm module 5, described Delayed Alarm module 5 is provided with the first Preset Time, set of time is 1 hour, namely when circuit turn-on one is constantly little, moisture signal, still higher than preset value, just illustrates that internal desiccant does not play a role or humidity condition cannot be solved, and is connected to comparison module 3, when receiving continuous print executive signal more than the first Preset Time, remind user's cabinet 2a that humidity is abnormal.Comprise relay normally open contact KM1, described relay normally open contact KM1 is controlled by relay coil KM1; Time-delay relay KT1, provides the first Preset Time, and its coil is coupled to relay normally open contact; Alarm portion, comprises the buzzer SP and indicator light LED that are arranged in series, and when the normally opened contact of time-delay relay KT1 closes, described buzzer SP and indicator light LED is enable.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (8)
1. a dehumidifying switch cubicle, comprise cabinet door and cabinet, it is characterized in that: described cabinet inner surface is installed with except wet tank, described dehumidifying case comprises casing and is arranged on the drier of box house, and described casing is provided with an opening, and described opening is provided with capping, described capping is provided with magnetic patch, described casing is provided with electromagnet, and in opposite directions, described electromagnet is connected with humidity control circuit for described electromagnet and magnetic patch Same Name of Ends; Described humidity control circuit comprises
Induction module, for induction apparatus cabinet humidity, and is converted into sampled voltage by humidity;
Base modules, provides a reference voltage;
Comparison module, is connected to induction module and base modules, when sampled voltage is greater than reference voltage, exports executive signal;
Executive Module, is connected to comparison module, when receiving executive signal, controlling electromagnet and obtaining electric.
2. a kind of dehumidifying switch cubicle as claimed in claim 1, it is characterized in that: described humidity control circuit comprises Delayed Alarm module, described Delayed Alarm module installation has the first Preset Time, be connected to comparison module, when receiving continuous print executive signal more than the first Preset Time, remind user's cabinet humidity abnormal.
3. a kind of dehumidifying switch cubicle as claimed in claim 1 or 2, it is characterized in that: described induction module comprises the first resistance and positive humidity coefficient humistor that are arranged in series, and the node that described first resistance and positive humidity coefficient humistor couple provides sampled voltage.
4. a kind of dehumidifying switch cubicle as claimed in claim 1 or 2, is characterized in that: described base modules comprises the second resistance, the 3rd resistance, the 4th resistance that are arranged in series successively, and the node that described 3rd resistance and the 4th resistance couple provides reference voltage.
5. a kind of dehumidifying switch cubicle as claimed in claim 4, is characterized in that: described 4th resistance is adjustable resistance.
6. a kind of dehumidifying switch cubicle as claimed in claim 2, is characterized in that: described comparison module comprises
One comparator, its positive input terminal is connected to sampled voltage, and its negative input end is connected to reference voltage;
Divider resistance string, be coupled to comparator output terminal and ground hold between, comprise the 5th resistance and the 6th resistance that are arranged in series;
Switching tube, its controlled terminal is connected to the node that the 5th resistance and the 6th resistance couple;
Relay coil, its controlled terminal is coupled to switching tube, and when described switching tube conducting, relay coil obtains electric transmission executive signal.
7. a kind of dehumidifying switch cubicle as claimed in claim 6, it is characterized in that: described Executive Module comprises the execution normally opened contact be series between electromagnet and external power source, described execution normally-closed contact is controlled by described relay coil, when performing normally-closed contact and closing, control described electromagnet and obtain electric.
8. as claimed in claims 6 or 7 one dehumidifying switch cubicle, it is characterized in that: described Delayed Alarm module comprises
Relay normally open contact, described relay normally open contact is controlled by relay coil;
Time-delay relay, provides the first Preset Time, and its coil is coupled to relay normally open contact;
Alarm portion, comprises the buzzer and indicator light that are arranged in series, when the normally opened contact of time-delay relay closes, described buzzer and indicator light enable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328787.4U CN204577896U (en) | 2015-05-20 | 2015-05-20 | A kind of dehumidifying switch cubicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328787.4U CN204577896U (en) | 2015-05-20 | 2015-05-20 | A kind of dehumidifying switch cubicle |
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| Publication Number | Publication Date |
|---|---|
| CN204577896U true CN204577896U (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520328787.4U Expired - Fee Related CN204577896U (en) | 2015-05-20 | 2015-05-20 | A kind of dehumidifying switch cubicle |
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| CN (1) | CN204577896U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105761879A (en) * | 2016-04-07 | 2016-07-13 | 武汉百络优物联科技有限公司 | Self-detection automatic window opener |
| CN105863432A (en) * | 2016-04-07 | 2016-08-17 | 武汉百络优物联科技有限公司 | High-precision automatic window opener |
| CN106909191A (en) * | 2017-04-21 | 2017-06-30 | 温州电力设计有限公司 | Running environment and realtime monitoring method in the cabinet of instant inserted and instant using type switch board |
| CN108011300A (en) * | 2016-10-31 | 2018-05-08 | 北京华电国网电力设备有限公司 | Solid insulation ring main unit |
| CN110050668A (en) * | 2019-04-30 | 2019-07-26 | 广东天濠建设工程有限公司 | Municipal drainage system |
-
2015
- 2015-05-20 CN CN201520328787.4U patent/CN204577896U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105761879A (en) * | 2016-04-07 | 2016-07-13 | 武汉百络优物联科技有限公司 | Self-detection automatic window opener |
| CN105863432A (en) * | 2016-04-07 | 2016-08-17 | 武汉百络优物联科技有限公司 | High-precision automatic window opener |
| CN108011300A (en) * | 2016-10-31 | 2018-05-08 | 北京华电国网电力设备有限公司 | Solid insulation ring main unit |
| CN106909191A (en) * | 2017-04-21 | 2017-06-30 | 温州电力设计有限公司 | Running environment and realtime monitoring method in the cabinet of instant inserted and instant using type switch board |
| CN110050668A (en) * | 2019-04-30 | 2019-07-26 | 广东天濠建设工程有限公司 | Municipal drainage system |
| CN110050668B (en) * | 2019-04-30 | 2021-04-30 | 广东天濠建设工程有限公司 | Municipal drainage system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20170520 |