CN208209355U - A kind of low-tension switch cabinet - Google Patents
A kind of low-tension switch cabinet Download PDFInfo
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- CN208209355U CN208209355U CN201820898893.XU CN201820898893U CN208209355U CN 208209355 U CN208209355 U CN 208209355U CN 201820898893 U CN201820898893 U CN 201820898893U CN 208209355 U CN208209355 U CN 208209355U
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Abstract
A kind of low-tension switch cabinet, including low-tension switch cabinet ontology, also there is Switching Power Supply, temp probe, cooling fan, electromagnetic valve, movable door equipment and control circuit, Switching Power Supply and control circuit are mounted in subassembly wrapper, temp probe, electromagnetic valve is mounted on cabinet body upper center, cooling fan is mounted on the outside of the aperture of cabinet body door front center, in the inside left and right ends of cabinet body door front center aperture respectively according to there is a sliding slot, movable door equipment includes motor reducer, drawstring, movable plate, the shell right end of motor reducer is by being mounted in the middle part of cabinet body door inner top side, between movable plate is located in the slot of two sliding slots, drawstring one end is mounted in movable plate upper center aperture, the drawstring other end is mounted on the output power shaft of motor reducer, Switching Power Supply, temp probe, cooling fan, electromagnetic valve, dodge gate is set It is standby to be connected with control circuit through conducting wire.The utility model can prevent high temperature from impacting to the electric component work of low-tension switch cabinet ontology.
Description
Technical field
The utility model relates to electrical control equipment field, especially a kind of low-tension switch cabinet.
Background technique
Low-tension switch cabinet is mainly used in industrial and mining enterprises, is used as transmission of electricity, distribution and electric energy conversion etc..Low-tension switch cabinet
In actual use, the environment installed and used is respectively different, and external environment has larger shadow for the component normal work of its inside
It rings, can also generate heat in the work of interior of the cabinet electric component, when cabinet body temperature is excessively high, humidity is excessive, be likely to lead
Causing interior of the cabinet to divide, electrical equipment temperature rise is excessively high, humidity is excessive and damages, or influences the intracorporal control of normal power supply, especially cabinet
System, measurement, protection, regulating device generally all have electronic component, and performance is easy when electronic component temperature rise is excessively high, humidity is excessive and is become
Difference or damage, and then whole work normally of low-tension switch cabinet is impacted.It is particularly applicable in high temperature, throughout the year moist place
The above problem is easier to show when use.Existing low-tension switch cabinet, which does not have, automatically adjusts setting for its interior of the cabinet temperature environment
Standby, the air long term of external humidification impacts electric component work in internal electrical components in order to prevent, therefore existing
After the cabinet door of some low-tension switch cabinets is closed, interior of the cabinet and the external world are all sealing isolations as far as possible, prevent the sky of external humidification
Electric component is contacted and then is impacted to electric component normal work gas for a long time and in cabinet body, but after one can be brought in this way
The high temperature that generates can not discharge when fruit is exactly the work of interior of the cabinet electric component, and after of long duration, temperature rise is excessively high to be had and lead to internal electricity
The risk of gas parts damages, and then whole work normally of low-tension switch cabinet is impacted.
Based on above-mentioned, a kind of usually interior of the cabinet and extraneous in state of isolation is provided, prevents the air of external humidification long
Electric component contact in turn impacts electric component normal work in phase and cabinet body, when interior of the cabinet temperature rise is excessively high, also
It can be that interior of the cabinet cools down in time, electric component work guarantees that the normal low pressure of power supply is opened under normal temperature environment in cabinet body
Closing cabinet seems particularly necessary.
Utility model content
In order to overcome existing low-tension switch cabinet to limit the various drawbacks of bring in actual use, the utility model because of structure
It provides end on the cabinet and is mounted with temp probe, cooling fan and movable door equipment are installed in the front end of cabinet body door,
The upper center of cabinet body is provided with electromagnetic valve, and usually cabinet body door closes and the external world is in state of isolation, work, when in cabinet body
Portion is influenced by the high temperature that external environment and internal electrical components work generate, and when there is overtemperature situation, is made in control circuit
Under, movable door equipment can be automatically opened, and fan can work once electrified be automatically that the electric component of interior of the cabinet cools down, in cabinet body
After temperature restores normal, movable door equipment is automatically closed again, prevent the air of external humidification long-term and cabinet body in electric component
Contact in turn impacts electric component normal work, has thus reached automatic control, and has been effectively ensured in cabinet body electrical
Component works under temperature and humidity environment as normal as possible, reduces a kind of low-tension switch cabinet of probability of failure.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of low-tension switch cabinet, including low-tension switch cabinet ontology, it is characterised in that the cabinet body upper end of low-tension switch cabinet ontology
There is an aperture at middle part, also there is Switching Power Supply, temperature to visit there are two having internal thread aperture, the front center of cabinet body door
Head, cooling fan, electromagnetic valve, movable door equipment and control circuit, Switching Power Supply and control circuit are mounted in subassembly wrapper, member
Part box is mounted on the upper end right side of cabinet body, and temp probe is mounted in the internal screw thread of first aperture of cabinet body upper center, leads to
It crosses electromagnetic valve air inlet pipe to screw into the internal screw thread of second aperture of cabinet body upper center, electromagnetic valve is mounted on cabinet
Body upper center, cooling fan is mounted on the outside of the aperture of cabinet body door front center by bolt and nut, in the front side of cooling fan
End is equipped with a metal net mask, protects to the flabellum of cooling fan, in the inside or so of cabinet body door front center aperture
Both ends are respectively welded with a sliding slot, and movable door equipment includes motor reducer, drawstring, movable plate, and the shell of motor reducer is right
End is mounted in the middle part of cabinet body door inner top side by bolt and nut, movable plate be located at two sliding slots slot it is interior between, drawstring one end
It is mounted in movable plate upper center aperture, the drawstring other end is mounted on the output power shaft of motor reducer, Switching Power Supply
Power input pass through conducting wire respectively with 220V AC power source the two poles of the earth and connect, switched power output anode and temp probe one
End, control circuit cathode power supply input terminal are connected by conducting wire, and two negative power supply output ends of temp probe are electric with control respectively
Two, road negative power supply input terminal is connected by conducting wire, and positive and negative the two of control circuit first via power output end and motor reducer
Pole power input is separately connected by conducting wire, negative and positive the two poles of the earth electricity of control circuit the second road power output end and motor reducer
Source input terminal is separately connected by conducting wire, and the control power input of one pole of 220V AC power source and temp probe is connected by conducting wire
It connects, the control power output end of temp probe is connected with cooling fan, one power input of electromagnetic gas valve by conducting wire, and 220V is handed over
Another pole in galvanic electricity source is connected with cooling fan, another power input of electromagnetic gas valve by conducting wire.
The sliding slot of the inside left and right ends of the cabinet body door front center aperture, the interior front and rear sides end of every sliding slot by
It is bonded with a rubber gasket under, has a rubber gasket positioned at the lower end transverse bonding of two sliding slots.
The movable plate of the activity door equipment is the metal plate with constant weight, and the lower-upper length of metal plate is than two
The lower-upper length of sliding slot is long, and metal plate can freely move up and down along the slot of two sliding slots, and metal plate enters two sliding slots
In slot after downlink a distance, rear and front end respectively in sliding slot front and rear sides end sheet rubber contact, metal plate lower end and
The rubber gasket upper-end contact of the lower end transverse bonding of two sliding slots, external air cannot enter in cabinet body through metal plate,
The weight of metal plate guarantees its rear and front end respectively and after the sheet rubber contact at front and rear sides end in sliding slot, under its own gravity
It can downlink along the chute automatically.
The motor reducer is 12V DC motor gear reduction equipment finished product, with motor and gear reduction,
After motor work once electrified, power that machine shaft exports is reduced revolving speed and increased after torque from power output by gear reduction
Axis exports, and in work, its shaft of motor gear reduction equipment finished product work once electrified is rotated clockwise, power output shaft subtracts through gear
After speed rotates counterclockwise, movable plate uplink along the chute, motor gear reduction equipment finished product its shaft inverse time of work once electrified will drive
Needle rotation, power output shaft are after The gear deceleration rotates clockwise, under movable plate gravity, movable plate downlink along the chute.
The Switching Power Supply is that alternating current 220V power supply turns 12V DC switch power module finished product, has two AC power sources
Terminals, two DC power supply outlet terminals.
The temp probe is adjustable electric contact glass shell mercury temperature switch, and model is WXG-11t, glass shell
Two normally opened contacts of glass shell internal upper part can be flooded connection when being risen by temperature action by interior mercury, be visited by temperature
The upper outside end of head screws into the internal screw thread of first aperture of cabinet body upper center, and temp probe is mounted on cabinet body
The lower part of upper center, temp probe is located at inner end on cabinet body, in use, by adjusting adjustable electric contact glass shell mercury
The top adjusting knob of temperature switch can set its internal quicksilver water face and at different temperatures connect two normally opened contacts,
Temp probe is configured with two relays, two relay cathode power supply input terminals and the temp probe other end and is connected by conducting wire
It connects, first relay negative power supply input terminal and control and are opened power input, second relay negative power supply input terminal
The negative power supply output end in powered-down source is connected by conducting wire, second power source for relay control input terminal and 220V AC power source one
Pole is connected by conducting wire, and two relays are mounted in subassembly wrapper.
The cooling fan is the aerofoil fan of working power 220V, power 50W.
The electromagnetic valve brand is De Lixi, and inner spool is closed type structure, and air inlet pipe, exhaust pipe bore are
8cm, power are 5W.
The control circuit includes the first control sub-circuit and the second control sub-circuit, and the first control sub-circuit and second is controlled
System circuit structure is consistent, every set control sub-circuit include time-base integrated circuit, adjustable resistance, electrolytic capacitor, ceramic disc capacitor,
Resistance, NPN triode, relay are connected by circuit board wiring therebetween, and time-base integrated circuit model is NE555, adjustable resistance
4 foot of 8 foot of cathode power supply input terminal and reset terminal, relay of one end and relay cathode power supply input terminal, time-base integrated circuit
Anode control power input connection, the adjustable resistance other end and electrolytic capacitor anode, time-base integrated circuit 6 foot of threshold value end and
The connection of 7 foot of discharge end, electrolytic capacitor cathode and ceramic disc capacitor one end, 1 foot of negative power supply input terminal of time-base integrated circuit and touching
Start 2 feet, NPN triode emitter, relay cathode control power input connection, the ceramic disc capacitor other end and when basis set at
5 foot of control terminal of circuit connects, and the output end of time-base integrated circuit is connected with resistance one end, the resistance other end and NPN triode
Base stage connection, NPN triode collector are connected with relay negative power supply input terminal.
The utility model beneficial effect is: when the utility model is used, when the interior of the cabinet temperature of low-tension switch cabinet ontology
More than setting temperature when, temp probe can turn on automatically cooling fan, electromagnetic valve working power, temp probe be control
First control sub-circuit of circuit inputs first via negative power supply, and then, the first control sub-circuit of control circuit controls motor
When the movable plate of retarder drive activity door equipment is along one section of sliding slot uplink of cabinet body door front center aperture inside left and right ends
Between, thus, not re-closed between the aperture of cabinet body door front end and dodge gate, the sky that cooling fan work once electrified is blown into toward interior of the cabinet
Gas enters interior of the cabinet, meanwhile, its inner spool of electromagnetic valve work once electrified is opened, and guarantees the wind and cabinet body of cooling fan blowout
The internal convection and electromagnetic valve exhaust pipe for opening hot-air after heat absorption from spool is discharged, which prevent interior of the cabinet by
The damage of electric component is caused in high temperature or leads to low-tension switch cabinet ontology cisco unity malfunction.When cooling fan is by interior of the cabinet
Heat is taken away, and when interior of the cabinet temperature is lower than the temperature set, cooling fan, electromagnetic valve power loss stop working, temp probe
The second road negative power supply is inputted for the second control sub-circuit of control circuit, then, the second control sub-circuit control of control circuit
The sliding slot downlink of the movable plate of motor reducer drive activity door equipment processed left and right ends on the inside of the aperture of cabinet body door front center
For a period of time, it to, be closed again between the aperture of cabinet body door front end and dodge gate, the spool of electromagnetic valve is closed, and outside is prevented
Electric component is contacted and then is impacted to electric component normal work wet air for a long time and in cabinet body.Based on above-mentioned, institute
The application prospect having had with the utility model.
Detailed description of the invention
The utility model is described further with reference to the accompanying drawings and examples.
Fig. 1 is the utility model structure diagram.
Fig. 2 is structural schematic diagram between the utility model cabinet body door, movable door equipment.
Fig. 3 is the utility model circuit diagram.
Specific embodiment
Fig. 1, shown in 2, a kind of novel low-voltage, including low-tension switch cabinet ontology 1, low-tension switch cabinet ontology 1
Cabinet body upper center has an aperture 1-4 there are two having internal thread aperture 1-1 and 1-2, the front center of cabinet body door 1-3,
Also there is Switching Power Supply 2, temp probe 3, cooling fan 4, electromagnetic valve 5, movable door equipment 6 and control circuit 7, Switching Power Supply
2 and control circuit 7 be mounted in subassembly wrapper 8, subassembly wrapper 8 is mounted on the upper end right side of cabinet body, and temp probe 3 is mounted on cabinet body
In the internal screw thread of first aperture of upper center, cabinet body upper center second is screwed by 5 air inlet pipe of electromagnetic valve
In the internal screw thread of aperture, electromagnetic valve 5 is mounted on cabinet body upper center, cooling fan 4 is mounted on cabinet body by bolt and nut
On the outside of door front center aperture 1-4, one metal net mask 4-1 is installed in the front side end of cooling fan 4, to cooling fan 4
Flabellum is protected, and is respectively welded with a sliding slot 1-5, movable door equipment in the inside left and right ends of cabinet body door front center aperture
6 include motor reducer 6-1, drawstring 6-2, movable plate 6-3, and the shell right end of motor reducer 6-1 is installed by bolt and nut
In the middle part of cabinet body door 1-3 inner top side, between movable plate 6-3 is located in the slot of two sliding slot 1-5, the one end drawstring 6-2 is mounted on
In movable plate 6-3 upper center aperture, the drawstring 6-2 other end is mounted on the output power shaft of motor reducer 6-1.
Fig. 1, shown in 2, the sliding slot 1-5's of the inside left and right ends of cabinet body door front center aperture, every sliding slot 1-5 is interior
Front and rear sides end is from top to bottom bonded with a rubber gasket 1-6, and the lower end transverse bonding positioned at two sliding slot 1-5 has one
Rubber gasket 1-6.The movable plate 6-3 of movable door equipment is the metal plate with constant weight, and metal plate 6-3's is upper
Lower length is longer than the lower-upper length of two sliding slot 1-5, and metal plate 6-3 can freely move up and down along the slot of two sliding slot 1-5, gold
Belong to plate 6-3 to enter in the slot of two sliding slots after downlink a distance, rear and front end respectively with front and rear sides end in sliding slot 1-5
The rubber gasket upper end 1-6 of the lower end transverse bonding of sheet rubber 1-6 contact, the lower end metal plate 6-3 and two sliding slot 1-5 connects
Touching, external air cannot enter in cabinet body through metal plate 6-3, and the weight of metal plate 6-3 guarantees that its rear and front end is respectively and sliding
It, can 1-5 downlink along the chute automatically under its own gravity in slot after the sheet rubber 1-6 contact at front and rear sides end.Motor reducer
6-1 is 12V DC motor gear reduction equipment finished product, with motor and gear reduction, after motor work once electrified, and gear
The power that machine shaft exports is reduced revolving speed and exported after increasing torque from power output shaft by deceleration mechanism, in work, motor
Its shaft of reduction gear unit finished product 6-1 work once electrified rotates clockwise, power output shaft is after The gear deceleration rotates counterclockwise,
It will drive movable plate 6-3 1-5 uplink along the chute, its shaft of motor gear reduction equipment finished product 6-1 work once electrified rotates counterclockwise,
Power output shaft is after The gear deceleration rotates clockwise, and under movable plate 6-3 gravity, movable plate 6-3 is along the chute under 1-5
Row.
Fig. 1, shown in 2, when the utility model is used, when the interior of the cabinet temperature of low-tension switch cabinet ontology 1 is more than setting
Temperature when, temp probe 3 can turn on automatically cooling fan 4, electromagnetic valve 5 working power, temp probe 3 be control circuit
7 the first control sub-circuit inputs first via negative power supply, and then, the first control sub-circuit control motor of control circuit 7 subtracts
The sliding slot 1-5 uplink of the left and right ends on the inside of the aperture of cabinet body door front center the movable plate 6-3 of fast device 6-1 drive activity door equipment
For a period of time, thus, not re-closed between cabinet body door 1-3 front end aperture and movable plate 6-3,4 work once electrified of cooling fan is toward cabinet
The air that internal portion is blown into enters interior of the cabinet, meanwhile, its inner spool of 5 work once electrified of electromagnetic valve is opened, and guarantees cooling wind
The wind of 4 blowout of fan and interior of the cabinet convection current and 5 exhaust pipe of electromagnetic valve for opening hot-air after heat absorption from spool discharge, this
Sample prevents interior of the cabinet since high temperature causes the damage of electric component or leads to 1 cisco unity malfunction of low-tension switch cabinet ontology.
When cooling fan 4 takes away interior of the cabinet heat, and interior of the cabinet temperature is lower than the temperature set, cooling fan 4, electromagnetic valve
5 power loss stop working, and temp probe 3 is that the second control sub-circuit of control circuit inputs the second road negative power supply, then, control
The movable plate 6-3 of second control sub-circuit control motor reducer drive activity door equipment of circuit is opened along cabinet body door front center
On the inside of hole the sliding slot 1-5 downlink of left and right ends for a period of time, thus, between cabinet body door 1-3 front end aperture and movable plate 6-3 again
Closing, its spool is closed after 5 power loss of electromagnetic valve stops working, prevent the air of external humidification long-term and cabinet body in electric component
Contact in turn impacts electric component normal work.Based on above-mentioned, so the application prospect that the utility model has had.
Shown in Fig. 3, motor reducer M is 12V DC motor gear reduction equipment finished product.Switching Power Supply U1 is exchange
220V power supply turns 12V DC switch power module finished product, has two ac power supply terminals 1 and 2 feet, two DC power supplies defeated
Terminals 3 and 4 feet out.Temp probe WK is adjustable electric contact glass shell mercury temperature switch, and model is WXG-11t, glass
Two normally opened contacts of glass shell internal upper part can be flooded connection when being risen by temperature action by the mercury in glass shell, be passed through
The upper outside end of temp probe WK screws into the internal screw thread of first aperture of cabinet body upper center, and probe is mounted on
Cabinet body upper center, in use, by the top adjusting knob for adjusting adjustable electric contact glass shell mercury temperature switch WK, it can
Two normally opened contacts are connected at different temperatures with setting its internal quicksilver water face, temp probe WK is configured with two relays
K1 and K4, two relay K1 and K4 cathode power supply input terminals are connected with the temp probe WK other end by conducting wire, first after
Electric appliance K1 negative power supply input terminal and control power input, second relay K4 negative power supply input terminal and Switching Power Supply
4 foot of negative power supply output end of U1 is connected by conducting wire, second relay K4 control power input and 220V AC power source
One pole is connected by conducting wire, and two relays K1 and K4 are mounted in subassembly wrapper.Cooling fan M1 is working power 220V, power
The aerofoil fan of 50W.Electromagnetic valve DC brand is De Lixi, and inner spool is closed type structure, air inlet pipe, exhaust pipe mouth
It is 5W that diameter, which is 8cm, power,.Control circuit includes the first control sub-circuit and the second control sub-circuit, the first control sub-circuit packet
Include time-base integrated circuit U2, adjustable resistance RP1, electrolytic capacitor C1, ceramic disc capacitor C2, resistance R1, NPN triode Q1, relay
K2 is connected by circuit board wiring therebetween, and time-base integrated circuit U2 model is NE555, the one end adjustable resistance RP1 and relay K2
Cathode power supply input terminal, 4 foot of 8 foot of cathode power supply input terminal and reset terminal of time-base integrated circuit U2, the control of relay K2 anode
Power input connection, the adjustable resistance RP1 other end and electrolytic capacitor C1 anode, time-base integrated circuit U2 6 foot of threshold value end and
The connection of 7 foot of discharge end, the negative power supply input terminal 1 of electrolytic capacitor C1 cathode and the one end ceramic disc capacitor C2, time-base integrated circuit U2
2 foot of foot and triggering end, NPN triode Q1 emitter, the control power input connection of relay K2 cathode, ceramic disc capacitor C2 are another
End is connected with 5 foot of control terminal of time-base integrated circuit U2, and the output end of time-base integrated circuit U2 is connected with the one end resistance R1, resistance
The R1 other end is connected with NPN triode Q1 base stage, and NPN triode Q1 collector is connected with relay K2 negative power supply input terminal；
Second control sub-circuit control sub-circuit include time-base integrated circuit U3, adjustable resistance RP2, electrolytic capacitor C3, ceramic disc capacitor C4,
Resistance R2, NPN triode Q2, relay K3 are connected by circuit board wiring therebetween, and time-base integrated circuit U3 model is NE555,
The one end adjustable resistance RP2 and relay K3 cathode power supply input terminal, 8 foot of cathode power supply input terminal of time-base integrated circuit U3 and multiple
Position end 4 foot, the connection of relay K3 anode electric control power input, the adjustable resistance RP2 other end and electrolytic capacitor C3 anode, when
Basis set is connected at 6 foot of threshold value end and 7 foot of discharge end of circuit U 3, electrolytic capacitor C3 cathode and the one end ceramic disc capacitor C4, when basis set
Power supply is controlled at 2 foot of 1 foot of negative power supply input terminal and triggering end, NPN triode Q2 emitter, relay K3 cathode of circuit U 3
Input terminal connection, the ceramic disc capacitor C4 other end are connected with 5 foot of control terminal of time-base integrated circuit U3, and time-base integrated circuit U3's is defeated
Outlet is connected with the one end resistance R2, and the resistance R2 other end is connected with NPN triode Q2 base stage, NPN triode Q2 collector and after
The connection of electric appliance K3 negative power supply input terminal.
Shown in Fig. 3, the power input 1 and 2 feet of Switching Power Supply U1 and 220V AC power source the two poles of the earth pass through conducting wire respectively
Connection, 3 foot of Switching Power Supply U1 output head anode and the one end temp probe WK, control circuit cathode power supply input terminal adjustable resistance
The one end RP1, RP2 is connected by conducting wire, the normally opened contact end of two negative power supply output end relay K1 of temp probe WK, normally closed
Tip side is connected with two negative power supply input terminal electrolytic capacitor C1, C3 cathode of control circuit by conducting wire respectively, control circuit
Two normally opened contact ends of first via power output end relay K2 and the positive and negative polarities power input of motor reducer M pass through
Conducting wire is separately connected, two normally opened contact ends of the second road of control circuit power output end relay K3 and motor reducer M's
Negative and positive the two poles of the earth power input is separately connected by conducting wire, and the relay K4 of one pole of 220V AC power source and temp probe controls electricity
Source input terminal is connected by conducting wire, the control power output end relay K4 normally opened contact end of temp probe and cooling fan M1,
Mono- power input of electromagnetic gas valve DC by conducting wire connect, another pole of 220V AC power source and with cooling fan M, electromagnetic gas valve DC
Another power input is connected by conducting wire.
Shown in Fig. 3, when the utility model is used, the power input 1 of Switching Power Supply U1 and 2 feet input 220V alternating current
Behind source, inside it under circuit function, the 12V DC positive pole of 3 foot of the power output end output of Switching Power Supply U1 can enter
The one end temp probe WK, control circuit cathode power supply input terminal.When the interior of the cabinet temperature of low-tension switch cabinet ontology is more than setting
Temperature when (such as 50 DEG C), quicksilver water face can connect two normally opened contacts inside temp probe WK inside temp probe WK,
Then, relay K1 obtains electric actuation, controls power input and normally opened contact termination leads to, controls power input and normally closed touching
Point end disconnects, normally opened contact end and control circuit due to, first negative power supply output end relay K1 of temp probe WK
First control sub-circuit negative power supply input terminal electrolytic capacitor C1 cathode is connected by conducting wire, so, the first control is electric this moment
It road can work once electrified；Due to, relay K4 cathode power supply input terminal is connected with the temp probe WK other end by conducting wire, so,
After two normally opened contacts inside temp probe WK are connected in quicksilver water face inside temp probe WK, relay K4, which can be obtained, electric is attracted it
Power input and normally opened contact end closure are controlled, due to relay K4 normally opened contact end and cooling fan M1, electromagnetic valve DC
One power input is connected by conducting wire, so cooling fan M1, electromagnetic valve DC can work once electrifieds this moment.First control son electricity
Road, cooling fan M1, electromagnetic valve DC, in movable door equipment: after the first control sub-circuit work once electrified, by time-base integrated circuit
The monostable flipflop that U1 and its peripheral cell adjustable resistance RP1, electrolytic capacitor C1, ceramic disc capacitor C2 are formed is in stable state, by
It is grounded in 2 foot of triggering end of time-base integrated circuit U2, so, after time-base integrated circuit U2 work once electrified, monostable flipflop meeting
Be transferred to temporary stable state, 3 feet of time-base integrated circuit U2 export 5 seconds high level, high level through NPN triode Q1 power amplification, into
Enter relay K2 negative power supply input terminal, then, relay K2 obtains two control power input of electric actuation and two normally opened
Tip side closure, since two normally opened contact ends of relay K2 and the positive and negative polarities power input of motor reducer M pass through
Conducting wire is separately connected, so this moment, its shaft of motor reducer M work once electrified rotates clockwise 5 seconds, power output shaft is through tooth
After wheel deceleration rotates counterclockwise, will drive movable plate, uplink stops after 5 seconds along the chute, thus, the aperture of cabinet body door front end and work
Not re-closed between movable plate, cooling fan M1 work once electrified enters interior of the cabinet toward the air that interior of the cabinet is blown into, meanwhile, electromagnetism
Its inner spool of valve DC work once electrified is opened, and the wind and interior of the cabinet convection current that guarantee cooling fan M1 is blown out simultaneously will be after heat absorptions
The electromagnetic valve DC exhaust pipe discharge that hot-air is opened from spool, which prevent interior of the cabinet since high temperature causes electric component
Damage or lead to low-tension switch cabinet ontology cisco unity malfunction.
Shown in Fig. 3, when the utility model is used, when the interior of the cabinet temperature of low-tension switch cabinet ontology is lower than the temperature set
When spending, two normally opened contacts inside temp probe WK are no longer connected in quicksilver water face inside temp probe WK, then, relay
K1 power loss stops being attracted, and controls power input and normally opened contact end disconnects, controls power input and normally-closed contact termination
It is logical, due to the normally-closed contact end of first negative power supply output end relay K1 of temp probe WK and the second control of control circuit
System circuit negative power supply input terminal electrolytic capacitor C3 cathode is connected by conducting wire, so, the second control sub-circuit can obtain this moment
Electricity work；Due to, relay K4 cathode power supply input terminal is connected with the temp probe WK other end by conducting wire, so, temperature is visited
Quicksilver water face is no longer switched on two normally opened contacts inside temp probe WK inside head WK, and relay K4 meeting power loss stops being attracted it
It controls power input and normally opened contact end disconnects, due to relay K4 normally opened contact end and cooling fan M1, electromagnetic valve DC
One power input is connected by conducting wire, so cooling fan M1, electromagnetic valve DC meeting power loss stop working this moment.Second control
In sub-circuit, movable door equipment: adjustable by time-base integrated circuit U3 and its peripheral cell after the second control sub-circuit work once electrified
The monostable flipflop that resistance RP2, electrolytic capacitor C3, ceramic disc capacitor C4 are formed is in stable state, due to time-base integrated circuit U3's
2 foot of triggering end ground connection, so, after time-base integrated circuit U3 work once electrified, monostable flipflop can be transferred to temporary stable state, when basis set at
3 feet of circuit U 3 export 5 seconds high level, and high level is through NPN triode Q2 power amplification, defeated into relay K3 negative power supply
Enter end, then, relay K3 obtains two control power input of electric actuation and two normally opened contact ends closures, due to relay
Two normally opened contact ends of device K3 and negative and positive the two poles of the earth power input of motor reducer M are separately connected by conducting wire, so when
Basis set exports 5 seconds high level at 3 feet of circuit U 3, its shaft of motor reducer M work once electrified rotates counterclockwise 5 seconds, moves
Power output shaft is after The gear deceleration rotates clockwise, and under movable plate gravity, movable plate stops for downlink 5 seconds along the chute,
To be closed again between the aperture of cabinet body door front end and movable plate.
In Fig. 3: adjustable resistance RP1, RP2 specification is 1M.Switching Power Supply U1 producer brand is LUEABB, and output voltage is straight
Flow 12V, power is 50W.Electrolytic capacitor C1, C3 specification is 4.7 μ F/25V；Ceramic disc capacitor C2, C4 specification is 0.01 μ F；Resistance
R1, R2 specification are 1K；Relay K1, K2, K3, K4 are 12V miniature relays, and there are two power inputs, two control electricity for tool
Source input terminal, two normally opened contact ends, two normally-closed contact ends.Motor reducer M is that brand AQL, the small-sized 12V of model 01 are straight
Flow motor reducer finished product.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above, for
For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this
In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute
Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims
All changes are embraced therein.It should not treat any reference in the claims as limiting related right
It is required that.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of low-tension switch cabinet, including low-tension switch cabinet ontology, it is characterised in that also have Switching Power Supply, temp probe, drop
Warm fan, electromagnetic valve, movable door equipment and control circuit, Switching Power Supply and control circuit are mounted in subassembly wrapper, subassembly wrapper
It is mounted on the upper end right side of cabinet body, temp probe, electromagnetic valve are mounted on cabinet body upper center, and cooling fan is mounted on cabinet body
On the outside of door front center aperture, in the inside left and right ends of cabinet body door front center aperture respectively according to having a sliding slot, dodge gate
Equipment includes motor reducer, drawstring, movable plate, and the shell right end of motor reducer is by being mounted in cabinet body door inner top side
Portion, between movable plate is located in the slots of two sliding slots, drawstring one end is mounted in movable plate upper center aperture, the drawstring other end
It is mounted on the output power shaft of motor reducer, the power input of Switching Power Supply and 220V AC power source the two poles of the earth pass through respectively
Conducting wire connection, switched power output anode are connected with temp probe one end, control circuit cathode power supply input terminal by conducting wire,
Two negative power supply output ends of temp probe are connected with two negative power supply input terminals of control circuit by conducting wire respectively, control electricity
The positive and negative polarities power input of road first via power output end and motor reducer is separately connected by conducting wire, control circuit
Negative and positive the two poles of the earth power input of two road power output ends and motor reducer is separately connected by conducting wire, 220V AC power source one
Pole is connected with the control power input of temp probe by conducting wire, the control power output end and cooling fan of temp probe,
One power input of electromagnetic gas valve is connected by conducting wire, another pole of 220V AC power source and another electricity of cooling fan, electromagnetic gas valve
Source input terminal is connected by conducting wire.
2. a kind of low-tension switch cabinet according to claim 1, it is characterised in that the inside of cabinet body door front center aperture is left
The interior front and rear sides end of the sliding slot at right both ends, every sliding slot is from top to bottom bonded with a rubber gasket, is located at two cunnings
The lower end transverse bonding of slot has a rubber gasket.
3. a kind of low-tension switch cabinet according to claim 1, it is characterised in that the movable plate of movable door equipment is a gold
Belong to plate, the lower-upper length of metal plate is longer than the lower-upper length of two sliding slots.
4. a kind of low-tension switch cabinet according to claim 1, it is characterised in that motor reducer is 12V DC motor gear
Retarding device.
5. a kind of low-tension switch cabinet according to claim 1, it is characterised in that Switching Power Supply is that alternating current 220V power supply turns 12V
Direct-current switch power supply module.
6. a kind of low-tension switch cabinet according to claim 1, it is characterised in that temp probe is that adjustable electric contact temp is opened
It closes, temp probe is configured with two relays, and two relay cathode power supply input terminals and the temp probe other end pass through conducting wire
Connection, first relay negative power supply input terminal and control power input, second relay negative power supply input terminal and
The negative power supply output end of Switching Power Supply is connected by conducting wire, second power source for relay control input terminal and 220V AC power source
One pole is connected by conducting wire, and two relays are mounted in subassembly wrapper.
7. a kind of low-tension switch cabinet according to claim 1, it is characterised in that its inner spool of electromagnetic valve is normally closed type
Structure.
8. a kind of low-tension switch cabinet according to claim 1, it is characterised in that control circuit includes the first control sub-circuit
With the second control sub-circuit, the first control sub-circuit and the second control sub-circuit construction are consistent, and every set control sub-circuit includes
Time-base integrated circuit, adjustable resistance, electrolytic capacitor, ceramic disc capacitor, resistance, NPN triode, relay, pass through circuit board therebetween
Wiring connection, time-base integrated circuit model is NE555, adjustable resistance one end and relay cathode power supply input terminal, when basis set at
4 foot of 8 foot of cathode power supply input terminal and reset terminal of circuit, the control power input connection of relay anode, adjustable resistance are another
End is connected with electrolytic capacitor anode, 6 foot of threshold value end of time-base integrated circuit and 7 foot of discharge end, electrolytic capacitor cathode and tile electricity
Hold 2 foot of 1 foot of negative power supply input terminal and triggering end, the NPN triode emitter, relay cathode of one end, time-base integrated circuit
Power input connection is controlled, the ceramic disc capacitor other end is connected with 5 foot of control terminal of time-base integrated circuit, time-base integrated circuit
Output end is connected with resistance one end, and the resistance other end is connected with NPN transistor base, and NPN triode collector and relay are negative
The connection of pole power input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820898893.XU CN208209355U (en) | 2018-06-11 | 2018-06-11 | A kind of low-tension switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820898893.XU CN208209355U (en) | 2018-06-11 | 2018-06-11 | A kind of low-tension switch cabinet |
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| Publication Number | Publication Date |
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| CN208209355U true CN208209355U (en) | 2018-12-07 |
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ID=64497464
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| CN201820898893.XU Active CN208209355U (en) | 2018-06-11 | 2018-06-11 | A kind of low-tension switch cabinet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111416285A (en) * | 2020-04-10 | 2020-07-14 | 袁宝庆 | High-low voltage switch cabinet with vacuum degree |
| CN112701837A (en) * | 2020-12-21 | 2021-04-23 | 珠海格力电器股份有限公司 | Terminal box |
-
2018
- 2018-06-11 CN CN201820898893.XU patent/CN208209355U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111416285A (en) * | 2020-04-10 | 2020-07-14 | 袁宝庆 | High-low voltage switch cabinet with vacuum degree |
| CN111416285B (en) * | 2020-04-10 | 2021-12-07 | 浙江双成电气有限公司 | High-low voltage switch cabinet with vacuum degree |
| CN112701837A (en) * | 2020-12-21 | 2021-04-23 | 珠海格力电器股份有限公司 | Terminal box |
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