CN107465134A - A kind of switch cubicle - Google Patents
A kind of switch cubicle Download PDFInfo
- Publication number
- CN107465134A CN107465134A CN201710855439.6A CN201710855439A CN107465134A CN 107465134 A CN107465134 A CN 107465134A CN 201710855439 A CN201710855439 A CN 201710855439A CN 107465134 A CN107465134 A CN 107465134A
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- CN
- China
- Prior art keywords
- controller
- humidity
- fan
- cabinet
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of switch cubicle, including：Cabinet, blast pipe, two air velocity transducers, first humidity sensor, controller, fan drive circuit, two heaters, temperature sensor and power supply, the top of the blast pipe is provided with a fan and several air-out passages, two air velocity transducers are separately positioned on the end of any two air-out passage, first humidity sensor is arranged on the arrival end of the blast pipe, second humidity sensor is arranged on the middle part of the cabinet, the controller and two air velocity transducers, first humidity sensor and the electrical connection of the second humidity sensor, the fan drive circuit electrically connects with the controller and the fan, the heater is arranged on the top of the cabinet, the temperature sensor is arranged on the top of the cabinet, the power supply is powered to the heater and the controller.As a result of said structure so that the temperature and humidity in cabinet of the present invention keeps constant.
Description
Technical field
The present invention relates to technical field of electric equipment, and in particular to a kind of switch cubicle.
Background technology
Switch cubicle is a kind of electrical equipment, and switch cubicle outside line is introduced into master switch in cabinet, is switched subsequently into sub-control, respectively
Branch is needed to set by it.Such as instrument, automatic control, motor magnetic switch, various A.C. contactors etc., some also set hyperbaric chamber with
Low-pressure chamber switch cubicle, provided with high voltage bus, such as power plant, some is additionally provided with to protect the low-frequency load reduction of capital equipment.
The main function of switch cubicle is generated electricity in power system, transmitted electricity, during the conversion of distribution and electric energy, is carried out
Folding, control and protection electrical equipment.Part in switch cubicle mainly has breaker, disconnecting switch, on-load switch, operation machine
Structure, transformer and various protection devices etc. form.The sorting technique of switch cubicle is a lot, such as can be with by breaker mounting means
It is divided into withdraw-type switch cabinet and fixed switching cabinet；Or the difference according to cabinet body structure, open type switch cubicle, metal envelope can be divided into
Close switch cubicle and metal enclosed armoured switch cabinet；It can be divided into high-tension switch cabinet, Medium Voltage Switchgear again according to voltage class is different
With low-tension switch cabinet etc..Be primarily adapted for use in power plant, transformer station, petrochemical industry, metallurgical steel rolling, industry light industry textile industry, industrial enterprise and
The various different occasions such as residential quarters, skyscraper.
Switch cubicle in existing market, its internal protection equipment are simpler and cruder so that the temperature and humidity inside cabinet
Change rises and falls too big, it is impossible to keeps constant, so the electrical equipment inside cabinet will be caused to damage, causes its circuit to occur
Situations such as short-circuit, breaking, so that switch cubicle is integrally scrapped, cost is larger.
The content of the invention
In view of this, the present invention provides a kind of reasonable and lower-cost switch cubicle.
To achieve the above object, the present invention provides following technical scheme：
A kind of switch cubicle, wherein, including：
Cabinet；
Blast pipe, the top of the blast pipe are provided with a fan and several air-out passages；
Two air velocity transducers, two air velocity transducers are separately positioned on the end of any two air-out passage, for examining
Survey the wind speed of the air-out passage end；
First humidity sensor, the first humidity sensor are arranged on the arrival end of the blast pipe, for detect it is described enter
The airflow humidity of airduct arrival end；
Second humidity sensor is arranged on the middle part of the cabinet, for detecting the humidity in the cabinet；
Controller, the controller are electrically connected with two air velocity transducers, the first humidity sensor and the second humidity sensor
Connect；
Fan drive circuit, the fan drive circuit electrically connect with the controller and the fan；
Two heaters, the heater is arranged on the top of the cabinet, and is electrically connected with the controller；
Temperature sensor, the temperature sensor is arranged on the top of the cabinet, and is provided between the heater
Heat-proof device, avoid influence of the heater to the temperature sensor；
Power supply, the power supply are powered to the heater and the controller.
Further, the signal of the first humidity sensor and the second humidity sensor described in the controller real-time reception,
When the humidity of second humidity sensor detection is more than the second humidity threshold set in the controller, the controller
One heater heating of control, while the fan is just being turned in the cabinet and blown, when first humidity sensor detects
Humidity be more than the controller in setting the first humidity threshold when, the controller control another heater heat.
Further, when the temperature of temperature sensor detection is close to design temperature, the controller closes two
Individual heater, the fan, which slows down, to be rotated forward, and is blown into the cabinet according to the first duration of setting.
Further, when the humidity of second humidity sensor detection is less than the second humidity set in the controller
During threshold value, the controller controls the fan to rotate forward, and the controller controls a heater heating, meanwhile, it is described
When the temperature of temperature sensor detection is close to design temperature, the controller closes heater, while controls the fan to accelerate
Rotation, when the wind speed of two air velocity transducer detections is close to the highest wind velocity set, the controller controls the fan
Constant speed control circuit so that the fan constant speed rotary, blown into the cabinet according to the second duration of setting.
Further, the first humidity sensor described in the controller real-time reception, second humidity sensor
Signal, when the humidity of second humidity sensor detection is more than the second humidity threshold for setting in the controller, described the
When the humidity that one humidity sensor detects is more than the first humidity threshold of setting in the controller, the controller control two adds
Hot device heating, while the controller controls the fan reversely to accelerate rotation to extract the gas in the cabinet out, until described
The humidity of second humidity sensor detection is close in the controller during the second humidity threshold of setting.
Further, the fan drive circuit include feeder ear, the driving that is connected for one end with fan loop it is defeated
Go out end and the ground terminal for being connected with the fan loop other end, in addition to voltage stabilizing adjustment circuit, Hall chip U and output electricity
Road.
Further, the fan drive circuit is constant speed control circuit, the constant speed control circuit include resistance R,
Electric capacity C, inductance L, potentiometer RP and bidirectional thyristor Q.
Further, in addition to several valves, several valves are correspondingly arranged at the end of air-out passage.
Further, when the humidity of second humidity sensor detection set close in the controller it is second wet
Spend threshold value, the humidity of first humidity sensor detection the first humidity threshold of setting, temperature close in the controller
When spending the temperature of sensor detection close to design temperature, controller control section valve opening, the controller controls institute
State the constant speed control circuit of fan so that the fan constant speed rotary, persistently blown into the cabinet.
Further, several silencing grooves are offered on the valve plate of the valve.
It can be seen from the above technical scheme that it is an advantage of the invention that：
1st, compared with prior art, present invention employs fan and air velocity transducer, can to the humidity inside cabinet and
Temperature is adjusted, and so as to be protected to equipment such as the transmission of electricity in cabinet, power supplies, and can extend the use longevity of switch cubicle
Life.
2nd, compared with prior art, the first humidity sensor and the second humidity sensor are provided with the present invention, can be right
Humidity in blast pipe and cabinet is detected.
3rd, compared with prior art, temperature sensor is provided with the present invention, the temperature inside cabinet can be examined
Survey.
4th, compared with prior art, controller is provided with the present invention, can be to the first humidity sensor and the second humidity
The numerical value of sensor detection is compared, so as to judge whether the humidity at blast pipe and in cabinet is constant, if safety, except this
Outside, the numerical value that can also be detected to temperature sensor is compared, and judges whether the temperature inside cabinet is constant, if peace
Entirely, so as to carrying out appropriate regulation and control.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.In the accompanying drawings：
Fig. 1 is the stereogram of the present invention.
Fig. 2 is the structural representation of the operation element of the present invention.
Fig. 3 is the structure sectional view between the blast pipe and air-out passage of the present invention.
Fig. 4 is the structure chart of the valve plate of the present invention.
Fig. 5 is the front view of the present invention.
Fig. 6 is the circuit diagram of the fan drive circuit of the present invention.
Fig. 7 is the circuit diagram of the constant speed control circuit in the fan drive circuit of the present invention.
In figure mark for：It is cabinet -10, blast pipe -20, fan -30, air-out passage -40, air velocity transducer -50, first wet
Spend sensor -60, the second humidity sensor -70, controller -80, fan drive circuit -90, heater -100, TEMP
Device -110, power supply -120, valve -130, valve plate -131, silencing groove -1311, heat-proof device -140.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to figs. 1 to Fig. 7, a kind of switch cubicle as shown in Fig. 1, Fig. 3 and Fig. 5, including：Cabinet 10, blast pipe 20, two
Air velocity transducer 50, the first humidity sensor 60, the second humidity sensor 70, controller 80, fan drive circuit 90, two add
Hot device 100, temperature sensor 110 and power supply 120.In the present embodiment, the cabinet 10 is made up of cold-rolled steel sheet, and it is thick
Degree is between 0.1~8.0mm, due to rolling at normal temperatures, without iron scale, so cold-rolled steel sheet quality is good, dimensional accuracy
Height, along with annealing process, its mechanical performance and processing performance are all very good.
Preferably, the thickness that the rolled plate of the cabinet 10 is made is 1.5mm.
Preferably, the thickness that the rolled plate of the cabinet 10 is made is 1.8mm.
Preferably, the thickness that the rolled plate of the cabinet 10 is made is 2.0mm.
The top of the blast pipe 20 is provided with a fan 30 and several air-out passages 40, two air velocity transducers 50 are distinguished
The end of any two air-out passage 40 is arranged on, for detecting the wind speed of the end of air-out passage 40, the first humidity sensor
Device 60 is arranged on the arrival end of the blast pipe 20, for detecting the airflow humidity of the arrival end of blast pipe 20, the second humidity
Sensor 70 is arranged on the middle part of the cabinet 10, for detecting the humidity in the cabinet 10, the controller 80 and two
Air velocity transducer 50, the first humidity sensor 60 and the second humidity sensor 70 electrically connect, the fan drive circuit 90 and institute
State controller 80 and the fan 30 electrically connect, the heater 100 is arranged on the top of the cabinet 10, and with the control
Device 80 electrically connects, and the temperature sensor 110 is arranged on the top of the cabinet 10, and is provided between the heater 100
Heat-proof device 140, the heater 100 is avoided to be influenceed on the 110 of the temperature sensor, the power supply 120 is to described
Heater 100 and the controller 80 are powered.
As shown in Fig. 2 the first humidity sensor 60 and the second humidity sensor 70 described in the real-time reception of controller 80
Signal, when second humidity sensor 70 detection humidity be more than the controller 80 in setting the second humidity threshold
When, the controller 80 controls a heater 100 to heat, while the fan 30 is just being turned in the cabinet 10 and blown, when
When the humidity that first humidity sensor 60 detects is more than the first humidity threshold of setting in the controller 80, the control
Device 80 controls another heater 100 to heat, described when the temperature of the temperature sensor 110 detection is close to design temperature
Controller 80 closes two heaters 100, and the fan 30, which slows down, to be rotated forward, into the cabinet 10 according to the first duration of setting
Air-supply, when the humidity of second humidity sensor 70 detection is less than the second humidity threshold of setting in the controller 80,
The controller 80 controls the fan 30 to rotate forward, and the controller 80 controls a heater 100 to heat, meanwhile, institute
When stating the temperature of the detection of temperature sensor 110 close to design temperature, the controller 80 closes heater 100, while controls institute
State fan 30 and accelerate rotation, when highest wind velocity of the wind speed that two air velocity transducers 50 detect close to setting, the controller
The constant speed control circuit of the 80 control fans 30 so that the constant speed rotary of fan 30, into the cabinet 10 according to setting
The second duration air-supply.
First humidity sensor 60, the signal of second humidity sensor 70 described in the real-time reception of controller 80,
When second humidity sensor 70 detection humidity be more than the controller 80 in setting the second humidity threshold, described first
When the humidity that humidity sensor 60 detects is more than the first humidity threshold of setting in the controller 80, the controller 80 controls
Two heaters 100 heat, while the controller 80 controls the fan 30 reversely to accelerate rotation to extract out in the cabinet 10
Gas, until the second humidity threshold of humidity setting close in the controller 80 of second humidity sensor 70 detection
When.
When second humidity sensor 70 detection humidity close to the second humidity threshold set in the controller 80,
The humidity that first humidity sensor 60 detects the first humidity threshold of setting, temperature close in the controller 80 pass
When the temperature that sensor 110 detects is close to design temperature, the control section valve 130 of controller 80 is opened, the controller 80
Control the constant speed control circuit of the fan 30 so that the constant speed rotary of fan 30, persistently blown into the cabinet 10.
Passed as a result of fan 30, air velocity transducer 50, the first humidity sensor 60, the second humidity sensor 70, temperature
The protection equipment of this some row of sensor 110, heater 100 and controller 80, by entering to the temperature and humidity inside cabinet 10
Row is detected and compared, so as to be regulated and controled so that the temperature and humidity inside cabinet keeps constant safety value, so as to cabinet
The equipment such as internal power supply, transmission of electricity serve protective effect, extend the service life of switch cubicle.
As shown in fig. 6, the fan drive circuit 90 include feeder ear, for fan loop (coil L1 and coil L2)
One end connection drive output and the ground terminal for being connected with the fan loop other end, the fan drive circuit 90 wrap
Including also includes voltage stabilizing adjustment circuit, Hall chip U1 and output circuit, the feeder ear by diode D1 and the 6th resistance (i.e.
Resistance R1 in figure) series arm be connected to for the power end VCC, diode D1 that are connected with power circuit (not shown)
Anode be connected with power end VCC, Hall chip U1 positive power source terminal passes through voltage stabilizing adjustment circuit and feeder ear (i.e. resistance in figure
R1 the second end) connection, the quantity of output circuit is two described in Hall chip U1 reference edge connection ground terminal, the Hall core
Piece U1 output end quantity is also two.
By taking the output circuit being wherein connected with coil L1 as an example, the output circuit includes p-type metal-oxide-semiconductor N1, the first voltage stabilizing
(accordingly, another output circuit includes P by diode Z1, the second voltage-regulator diode Z1, first resistor R2 and second resistance R5
Type metal-oxide-semiconductor N2, the first voltage-regulator diode Z4, the second voltage-regulator diode Z3, first resistor R3 and second resistance R6), p-type metal-oxide-semiconductor
N1 anode is connected with feeder ear, and p-type metal-oxide-semiconductor N1 negative electrode is the drive output, corresponding for being connected with coil L1
Ground, the p-type metal-oxide-semiconductor N2 of another output circuit negative electrode is another drive output, is connected with coil L2, p-type metal-oxide-semiconductor N1
Grid Hall chip U1 one of output end, Hall chip U1 another output end are connected to by second resistance R5
Another output circuit is then connected to by second resistance R6, p-type metal-oxide-semiconductor N1 grid is also connected to confession by first resistor R2
Electric end；First voltage-regulator diode Z1 anode is connected to p-type metal-oxide-semiconductor N1 grid, the first voltage-regulator diode Z1 negative electrode connection
To feeder ear；Second voltage-regulator diode Z2 anode is connected to p-type metal-oxide-semiconductor N1 negative electrode, the second voltage-regulator diode Z2 negative electrode
Feeder ear is connected to, the voltage stabilizing adjustment circuit includes electrochemical capacitor C1, the 3rd voltage-regulator diode Z5 and 3rd resistor R4；Electrolysis
Electric capacity C1 positive pole is connected with feeder ear, electrochemical capacitor C1 negative pole connection ground terminal；3rd voltage-regulator diode Z5 anode connection
Ground terminal, the 3rd voltage-regulator diode Z5 negative electrode are connected to feeder ear by 3rd resistor R4；3rd voltage-regulator diode Z5 negative electrode
It is connected with Hall chip U1 positive power source terminal, the fan drive circuit 90 also includes rotating speed output circuit；The rotating speed output electricity
Road includes transistor Q1, the 4th resistance R7 and the 5th resistance R8；Transistor Q1 base stage is connected to driving by the 4th resistance R7
Output end, two output circuits then have two drive outputs, and the 4th resistance R7 need to only be connected to one of driving output
End.
In the present embodiment, the 4th resistance R7 is connected to p-type metal-oxide-semiconductor N2 negative electrode, and the 5th resistance R8 is connected to transistor Q1
Base stage and negative electrode between, body pipe Q1 negative electrode is also connected with ground terminal；Transistor Q1 anode is the output end of rotating speed output circuit
S.The fan drive circuit 90 is using the driving of p-type metal-oxide-semiconductor so that circuit eliminates transistor, has not only simplified circuit but also has reduced
Cost.
Particularly, as shown in fig. 7, the fan drive circuit 90 can also be constant speed control circuit, the fixed speed control
Circuit includes resistance R1, electric capacity C1, inductance L1, potentiometer RP1 and bidirectional thyristor Q1, Q1, one end connection of the resistance R1
DC tachometer generator A, DC tachometer generator the A other end connection power supply VCC, electric capacity C1 one end connection motor, and
220V alternating currents, the other end of electric capacity C1 other end connection inductance L1 and 220V alternating current, motor M other end connection electric capacity
C2, resistance R4, a potentiometer RP1 fixing end, potentiometer RP1 sliding end and bidirectional thyristor V1 a main electrode,
Resistance the R1 other end connection resistance R2, resistance R2 other end connection diode D1 negative electrode and diode D2 negative electrode, electricity
The other end for holding C2 connects diode D1 anode, electric capacity C3, electric capacity C4 and bidirectional thyristor V1 another main electrode, current potential
Device the RP1 connection of another fixing end resistance R3, resistance the R3 other end connection electric capacity C3 other end, diode D2 anode
Dual trigger diode Q1 is connected, dual trigger diode Q1 other end connection bidirectional thyristor V1 control pole, resistance R4's is another
One end connection electric capacity C4 other end, it is preferred that the power supply VCC is 12V DC electricity,
The constant speed control circuit is simple in construction, component is few, and the rotating speed of alternating current generator is used as by the use of DC tachometer generator
Detecting element, and tach signal is converted into a certain proportion of voltage, by controlling the angle of flow of bidirectional thyristor to realize friendship
The fixed speed control of motor is flowed, while circuit is centreless chip architecture, significantly increases anti-interference,
The switch cubicle also includes several valves 130, and several valves 130 are correspondingly arranged at the end of air-out passage 40,
As shown in figure 4, offering several silencing grooves 1311 on the valve plate 131 of the valve 130, on the one hand silencing groove 1311 eliminates out
The noise of the end gas of wind passage 40 flowing, on the other hand so that what the gas of the end of air-out passage 40 cabinet 10 to be entered contained
Moisture is consumed by friction, reduces moisture and enters in cabinet 10, sound-absorbing material is provided with the cell wall of the silencing groove 1311.At this
In embodiment, sound-absorbing material is sponge, can effectively absorb sound, reduces interference of the noise to the external world.
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. switch cubicle, it is characterised in that including：Cabinet (10)；Blast pipe (20), the top of the blast pipe (20) are provided with a fan (30) (30) and several air-out passages (40)；Two air velocity transducers (50), two air velocity transducers (50) are separately positioned on the end of any two air-out passage (40) End, for detecting the wind speed of the air-out passage (40) end；First humidity sensor (60), the first humidity sensor (60) is arranged on the arrival end of the blast pipe (20), for examining Survey the airflow humidity of the blast pipe (20) arrival end；Second humidity sensor (70) is arranged on the middle part of the cabinet (10), for detecting the humidity in the cabinet (10)；Controller (80), the controller (80) and two air velocity transducers (50), the first humidity sensor (60) and second are wet Spend sensor (70) electrical connection；Fan drive circuit (90), the fan drive circuit (90) are electrically connected with the controller (80) and the fan (30) Connect；Two heaters (100), the heater (100) are arranged on the top of the cabinet (10), and with the controller (80) electrically connect；Temperature sensor (110), the temperature sensor (110) are arranged on the top of the cabinet (10), and with the heating Heat-proof device (140) is provided between device (100), avoids the heater (100) from influenceing (110) of the temperature sensor；Power supply (120), the power supply (120) are powered to the heater (100) and the controller (80).
- 2. switch cubicle according to claim 1, it is characterised in that the first humidity described in controller (80) real-time reception The signal of sensor (60) and the second humidity sensor (70), when the humidity of second humidity sensor (70) detection is more than institute When stating the second humidity threshold of setting in controller (80), the controller (80) controls heater (100) heating, simultaneously The fan (30) is just turning in the cabinet (10) and blown, when the humidity of first humidity sensor (60) detection is more than institute When stating the first humidity threshold of setting in controller (80), the controller (80) controls another heater (100) to heat.
- 3. switch cubicle according to claim 2, it is characterised in that when the temperature of the temperature sensor (110) detection connects During nearly design temperature, the controller (80) closes two heaters (100), and the fan (30), which is slowed down, to be rotated forward, to the cabinet Blown in body (10) according to the first duration of setting.
- 4. switch cubicle according to claim 1, it is characterised in that when the humidity of second humidity sensor (70) detection Less than during the second humidity threshold of setting, the controller (80) controls the positive rotation of the fan (30) in the controller (80) Turning, the controller (80) controls heater (100) heating, meanwhile, the temperature of temperature sensor (110) detection connects During nearly design temperature, the controller (80) closes heater (100), while controls the fan (30) to accelerate rotation, when two When the wind speed of individual air velocity transducer (50) detection is close to the highest wind velocity set, the controller (80) controls the fan (30) Constant speed control circuit so that fan (30) constant speed rotary, to being given according to the second duration of setting in the cabinet (10) Wind.
- 5. switch cubicle according to claim 1, it is characterised in that the first humidity described in controller (80) real-time reception The signal of sensor (60), second humidity sensor (70), when the high humidity of second humidity sensor (70) detection In the second humidity threshold of setting in the controller (80), the humidity of the first humidity sensor (60) detection is more than described In controller (80) during the first humidity threshold of setting, the controller (80) controls two heaters (100) heating, while described Controller (80) controls the fan (30) reversely to accelerate rotation to extract the gas in the cabinet (10) out, until described second wet When spending the second humidity threshold that the humidity that sensor (70) detects is set close in the controller (80).
- 6. switch cubicle according to claim 1, it is characterised in that the fan drive circuit (90) includes feeder ear, used The drive output and the ground terminal for being connected with the fan loop other end being connected in one end with fan loop, in addition to it is steady Press adjustment circuit, Hall chip U1 and output circuit.
- 7. switch cubicle according to claim 4, it is characterised in that the fan drive circuit (90) is fixed speed control electricity Road, the constant speed control circuit include resistance R1, electric capacity C1, inductance L1, potentiometer RP1 and bidirectional thyristor Q1.
- 8. switch cubicle according to claim 1, it is characterised in that also including several valves (130), several valves (130) it is correspondingly arranged at the end of air-out passage (40).
- 9. switch cubicle according to claim 8, it is characterised in that when the humidity of second humidity sensor (70) detection Close to the second humidity threshold of setting in the controller (80), first humidity sensor (60) detection humidity close to institute When stating the first humidity threshold of setting in controller (80), the temperature of the temperature sensor (110) detection close to design temperature, Controller (80) the control section valve (130) is opened, and the controller (80) controls the fixed speed control of the fan (30) Circuit so that fan (30) constant speed rotary, persistently blown into the cabinet (10).
- 10. switch cubicle according to claim 2, it is characterised in that offered on the valve plate (131) of the valve (130) Several silencing grooves (1311).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710855439.6A CN107465134A (en) | 2017-09-20 | 2017-09-20 | A kind of switch cubicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710855439.6A CN107465134A (en) | 2017-09-20 | 2017-09-20 | A kind of switch cubicle |
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| CN107465134A true CN107465134A (en) | 2017-12-12 |
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| CN201710855439.6A Pending CN107465134A (en) | 2017-09-20 | 2017-09-20 | A kind of switch cubicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117028321A (en) * | 2023-06-19 | 2023-11-10 | 贝德凯利电气(苏州)有限公司 | High-efficient waterproof water pump |
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| JPH08205331A (en) * | 1995-01-24 | 1996-08-09 | Toshiba Corp | System for cooling electronic apparatus |
| CN105242702A (en) * | 2015-10-08 | 2016-01-13 | 国网山东高密市供电公司 | Dehumidifying apparatus for electric control cabinet |
| CN105703244A (en) * | 2016-03-24 | 2016-06-22 | 四川中科源创科技有限公司 | Refrigerating intelligent dehumidification device and dehumidification method for power cabinet |
| CN106058685A (en) * | 2016-07-19 | 2016-10-26 | 苏州市龙源电力科技股份有限公司 | Automatic-drying power supply cabinet |
| CN206490342U (en) * | 2017-07-25 | 2017-09-12 | 国网冀北节能服务有限公司 | It is a kind of to automatically adjust the box-type substation of temperature and fire extinguishing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117028321A (en) * | 2023-06-19 | 2023-11-10 | 贝德凯利电气(苏州)有限公司 | High-efficient waterproof water pump |
| CN117028321B (en) * | 2023-06-19 | 2024-02-13 | 贝德凯利电气(苏州)有限公司 | High-efficient waterproof water pump |
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