CN208095029U - A kind of intelligent heat dissipation PLC control cabinet - Google Patents
A kind of intelligent heat dissipation PLC control cabinet Download PDFInfo
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- CN208095029U CN208095029U CN201820532849.7U CN201820532849U CN208095029U CN 208095029 U CN208095029 U CN 208095029U CN 201820532849 U CN201820532849 U CN 201820532849U CN 208095029 U CN208095029 U CN 208095029U
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- cabinet
- plc control
- emission fan
- heat emission
- heat dissipation
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Abstract
The utility model is related to a kind of PLC control cabinets, more particularly to a kind of intelligent heat dissipation PLC control cabinet, the technical issues of cabinet heat dissipation effect difference to solve PLC control cabinet in the prior art causes the reduced service life of PLC control cabinet, the utility model includes cabinet, its drip irrigation device is to offer air inlet and air outlet respectively on the cabinet, the heat emission fan for being equipped with the filter screen for being covered in air inlet in the cabinet and being covered in air outlet, the control circuit of heat emission fan rotating speed is coupled with for detecting box body temperature and controlled in the heat emission fan, accelerate the dissipation of heat in cabinet by heat emission fan, improve the heat dissipation effect of cabinet, achieve the purpose that improve PLC control cabinet service life.
Description
Technical field
The utility model is related to electrical equipment technical field, more particularly to a kind of intelligent heat dissipation PLC control cabinet.
Background technology
PLC control cabinet refers to PLC technology cabinet, it can be achieved that motor, the electrical cabinet of the control of switch, PLC control cabinet have
The defencive functions such as overload, short circuit, open-phase protection.It has compact-sized, the operation is stable, multiple functional.It can be according to practical control
System rule touch size, are combined, single cabinet both may be implemented and automatically controlled, can also realize that more cabinets pass through Industrial Ethernet or industry
Fieldbus networks composition is collecting and distributing（DCS）Control system.PLC control cabinet adapts to the industrial automation control of all size scale
Occasion processed.It is widely used in the industries such as electric power, metallurgy, chemical industry, papermaking, environment protection sewage processing.
In general, PLC control cabinet include cabinet, air switch, converge wire casing, power supply, PLC, intermediate relay, connecting terminal,
Signal isolator and distributor, guard grating and other equipment, and being set to the element in cabinet at work can distribute largely
Heat only relies on if the heat emission hole being opened in the prior art on cabinet distributes the heat in cabinet, and effect is poor, from
And amount of heat is caused to be piled up in cabinet, the loss of element is in turn resulted in, the service life of PLC control cabinet is shortened.
Utility model content
The purpose of this utility model is to provide a kind of intelligent heat dissipation PLC control cabinet, and when PLC rack works, accelerated heat is from cabinet
Body distributes, and achievees the purpose that improve PLC control cabinet service life.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of intelligent heat dissipation PLC control cabinet, including cabinet offer air inlet and air outlet on the cabinet, institute respectively
The heat emission fan for being equipped with the filter screen for being covered in air inlet in cabinet He being covered in air outlet is stated, is coupled in the heat emission fan useful
In detecting box body temperature and control the control circuit of heat emission fan rotating speed.
Through the above technical solutions, when the heat in cabinet is less, the heat in cabinet can pass through air inlet and outlet air
Mouth escapes out cabinet；When the heat in cabinet is more, the rising in cabinet is caused, heat in cabinet is accelerated by heat emission fan
Dissipation, the cold air outside cabinet pass through air inlet and enter cabinet after filter screen filtration, then carry the wind of heat in cabinet
Cabinet is overflowed from air outlet under the drive of heat emission fan, improves the purpose of PLC control cabinet service life.
And the keying of heat emission fan, the heat dissipation work of intelligentized control method PLC control cabinet are controlled by control circuit.
Further, the control circuit includes：
Thermistor Rt, is installed in cabinet, accordingly changes its resistance value according to temperature change in cabinet；
Circuit for regulating and controlling is coupled to thermistor Rt, and adjustable according to the resistance value output station duty ratio of thermistor Rt
Adjustment signal；
Bidirectional triode thyristor VT, is serially connected in the current supply circuit of heat emission fan, and control terminal is coupled to the output end of circuit for regulating and controlling
To receive adjustment signal, and according to the rotating speed of adjustment signal adjusting heat emission fan.
Through the above technical solutions, and adjusting circuit for regulating and controlling output according to the variation of cabinet body temperature by thermistor Rt
Different duty adjustment signal, bidirectional triode thyristor VT according to adjustment signal adjust the angle of flow, to change heat emission fan both ends
Voltage, with reach adjust heat emission fan rotating speed, realize improve cabinet in radiating rate under the premise of reach energy saving
Effect, further extend interchanger service life,
Further, the dust excluding plate for being covered in air outlet, the dust excluding plate and the cabinet are rotatably connected to outside the cabinet
Elastic string is connected between body.
Through the above technical solutions, when heat emission fan opens work, dry towards dust excluding plate direction, work of the dust excluding plate in wind
With lower exposed air outlet, consequently facilitating cabinet is discharged in heat, after heat emission fan is stopped, dust excluding plate no longer receives wind-force work
With dust excluding plate drives dust excluding plate to be rotated towards close to cabinet direction under the reseting elasticity of elastic string, so that dust excluding plate covers
In air outlet, and then prevent dust from entering in cabinet the normal work for influencing element in heat emission fan and cabinet from air outlet.
Further, the peripheral frame being arranged around air inlet is fixedly connected in the cabinet, offered in the peripheral frame with
The mating inserting groove to which filter screen be fixed of filter screen.
Through the above technical solutions, by mating filter screen and peripheral frame, it is convenient for the installation and dismounting of filter screen, from
And convenient for filter screen is cleaned and replaced, it is further ensured that the heat dissipation effect of PLC.
Further, it is fixedly connected with holding plate on the filter screen.
Through the above technical solutions, holding plate is convenient for the movement of filter screen.
Further, it is connected with spring between the holding plate and the peripheral frame.
Through the above technical solutions, due in heat emission fan and cabinet element will produce certain vibration during the work time,
The channel passed through for external cold air is formed between peripheral frame because of vibration to reduce filter screen, so that without strainer mistake
The cold air of filter enters across filter screen in cabinet, by spring so that filter screen push against in peripheral frame, then be further reduced dust into
The generation for the phenomenon that entering cabinet.
In conclusion the utility model has the advantages that：
The discharge for accelerating the heat in cabinet by the heat emission fan being set in cabinet reaches and improves PLC control cabinet use
The purpose in service life；
The rotating speed of heat emission fan is detected and controlled to the temperature in cabinet by control circuit, is improving PLC control cabinet
Achieve the purpose that while radiating efficiency energy saving.
Description of the drawings
Fig. 1 is confined explosion's schematic diagram of the present embodiment；
Fig. 2 is the partial schematic diagram of the present embodiment, mainly shows the connection relation between peripheral frame and filter screen；
Fig. 3 is the enlarged drawing in the portions A in Fig. 2；
The circuit diagram of control circuit in Fig. 4 the present embodiment；
Fig. 5 is the partial schematic diagram of the present embodiment, mainly shows the connection relation of dust excluding plate and air outlet.
Reference numeral：1, cabinet；2, air inlet；3, air outlet；4, heat emission fan；5, control circuit；6, peripheral frame；7, first is perpendicular
Straight-bar；8, the second vertical bar；9, first level bar；10, the second horizon bar；11, inserting groove；12, filter screen；13, holding plate；
14, hook ring；15, fixed ring；16, spring；17, crotch；18, circuit for regulating and controlling；19, dust excluding plate；20, elastic string.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
A kind of intelligent heat dissipation PLC control cabinet offers as shown in Figure 1, including cabinet 1 on the both sides side wall of cabinet 1 respectively
Air inlet 2 and air outlet 3, and it is installed with heat emission fan 4 on 1 side inner wall of cabinet, heat emission fan 4 is covered on air outlet 3, and
Control circuit 5 is provided in cabinet 1, control circuit 5 is used to detect the temperature change in cabinet 1 and controls the rotating speed of heat emission fan 4.
The keying of heat emission fan 4, the heat dissipation work of intelligentized control method PLC control cabinet are controlled by control circuit 5.
As shown in Fig. 2, be fixedly connected with peripheral frame 6 on the madial wall of 1 other side of cabinet, peripheral frame 6 around outside air inlet 2,
Peripheral frame 6, which has the first vertical bar 7 and is parallel to the second vertical bar 8 of the first vertical bar 7 setting and is fixedly connected on first, erects
The horizontally disposed first level bar 9 of straight-bar 7 and the top of the second vertical bar 8 and be parallel to the setting of first level bar 9 and it is fixed
It is connected to the second horizon bar 10 of 8 bottom of the first vertical bar 7 and the second vertical bar, the second vertical bar 8 is far from the first vertical bar 7
Inserting groove 11 is offered on side wall, the height of inserting groove 11 is more than 10 upper surface of 9 lower surface of first level bar and the second horizon bar
The distance between, and inserting groove 11 extends to the side wall of the first vertical bar 7, inserting groove 11 along the axis direction of first level bar 9
Inside slidably connect filter screen 12, filter screen 12 is filtered the cold air entered in cabinet 1 from air inlet 2, reduce dust and
Damage to element in heat emission fan 4 and cabinet 1 after impurity enters in cabinet 1.
For ease of sliding filter screen 12, side of the filter screen 12 far from the first vertical bar 7 is fixedly connected with holding plate 13.
As shown in figure 3, since the element in heat emission fan 4 and cabinet 1 generates vibration at work, for reduce filter screen 12 by
In vibrate generation the phenomenon that forming the channel passed through for dust and impurity between the first vertical bar 7, holding plate 13 is far from the
Hook ring 14 is fixedly connected on the side wall of the side of two vertical bars 8, the second side of the vertical bar 8 far from air inlet 2 is fixedly connected
There is fixed ring 15, spring 16 is fixedly connected in fixed ring 15, the one end of spring 16 far from fixed ring 15 is fixedly connected with crotch
17, when the hook of crotch 17 is held in hook ring 14, spring 16 is in compressive state, therefore spring 16 drives the abutting of filter screen 12 perpendicular in first
Straight-bar 7.
As shown in figure 4, control circuit 5 includes：
Thermistor Rt is installed in cabinet 1, accordingly changes its resistance value according to temperature change in cabinet 1；
Circuit for regulating and controlling 18 is coupled to thermistor Rt, and adjustable according to the resistance value output station duty ratio of thermistor Rt
Adjustment signal；
Bidirectional triode thyristor VT is serially connected in the current supply circuit of heat emission fan 4, and control terminal is coupled to the output of circuit for regulating and controlling 18
It holds to receive adjustment signal, and adjusts the rotating speed of heat emission fan 4 according to adjustment signal.
Circuit for regulating and controlling 18 includes 555 time base circuits, and 555 time base circuits include chip NE555 and are coupled to chip NE555
Resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, capacitance C1, capacitance C2, capacitance C3, zener diode VD, capacitance
C2, capacitance C3 select dacron terylene condenser, and zener diode VD is that voltage stabilizing value is 9.1V, and chip NE555 has 8 pins.
Thermistor Rt is coupled to 5 feet of chip NE555 while being coupled to one end of resistance R1, another termination of resistance R1
Ground, the both ends of capacitance C1 are connected in parallel in the both ends of thermistor Rt, the 1 foot ground connection of chip NE555,2 feet of chip NE555 and
6 feet are coupled to one end of resistance R3, and the other end of resistance R3 is coupled to one end of resistance R2, and the other end of resistance R2 is coupled with electricity
R4 is hindered, the other end of resistance R4 is coupled to direct current VCC, one end and the voltage stabilizing of capacitance C3 are coupled between resistance R2 and resistance R4
The cut-off end of diode VD, the other end of capacitance C3 and the other end of zener diode VD are coupled to ground, meanwhile, resistance R2 and electricity
4 feet and 8 feet of chip NE555 are also coupled between resistance R4,7 feet of chip NE555 are coupled between resistance R2 and resistance R3, core
3 feet of piece NE555 are output end, are coupled to one end of resistance R5, the other end of resistance R5 is coupled to the control of bidirectional triode thyristor VT
End processed, bidirectional triode thyristor VT are series in the control loop of heat emission fan 4, and heat emission fan 4 and bidirectional triode thyristor VT both end voltages are
220V。
3 human hair combing wastes of chip NE555 go out the adjustable square-wave signal of duty ratio, when the temperature change in cabinet 1, temperature-sensitive electricity
The resistance value of resistance Rt changes, and changes the duty ratio of the 3 feet output square wave of chip NE555, adjusts the conducting of bidirectional triode thyristor VT
Angle automatically adjusts the rotating speed of heat emission fan 4 to change the voltage at 4 electrode both ends of heat emission fan.
As shown in figure 5, to reduce the generation for the phenomenon that dust or impurity enter cabinet 1 when heat emission fan 4 does not work, cabinet
Dust excluding plate 19 is rotatably connected on 1 lateral wall, dust excluding plate 19 is covered in air outlet 3, the side of the lower surface and cabinet 1 of dust excluding plate 19
Elastic string 20 is connected between wall.Plastic plate can be selected in dust excluding plate 19, and dust excluding plate 19 secures connection by glue or screw
In on cabinet 1, but it is provided with folding line on dust excluding plate 19, so that dust excluding plate 19 can rotate along folding line.
It when heat emission fan 4 opens work, dries towards 19 direction of dust excluding plate, dust excluding plate 19 exposes outlet air under the action of the forces of the wind
Mouth 3, consequently facilitating cabinet 1 is discharged in heat, after heat emission fan 4 is stopped, dust excluding plate 19 no longer receives wind-force effect, dust-proof
Plate 19 drives dust excluding plate 19 to be rotated towards close to 1 direction of cabinet under the reseting elasticity of elastic string 20, so that dust excluding plate 19 covers
It is placed on air outlet 3, and then prevents dust from entering in cabinet 1 the normal work for influencing element in heat emission fan 4 and cabinet 1 from air outlet 3
Make.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (6)
1. a kind of intelligent heat dissipation PLC control cabinet, including cabinet (1), it is characterised in that：Offered respectively on the cabinet (1) into
Air port (2) and air outlet (3), the cabinet (1) is interior to be equipped with the filter screen (12) for being covered in air inlet (2) and is covered in outlet air
The heat emission fan (4) of mouthful (3) is coupled on the heat emission fan (4) and turns for detecting the interior temperature of cabinet (1) and controlling heat emission fan (4)
The control circuit (5) of speed.
2. a kind of intelligent heat dissipation PLC control cabinet according to claim 1, it is characterised in that：Control circuit (5) packet
It includes：
Thermistor Rt is installed in cabinet (1), accordingly changes its resistance value according to cabinet (1) interior temperature change；
Circuit for regulating and controlling (18) is coupled to thermistor Rt, and adjustable according to the resistance value output station duty ratio of thermistor Rt
Adjustment signal；
Bidirectional triode thyristor VT is serially connected in the current supply circuit of heat emission fan (4), and control terminal is coupled to the output of circuit for regulating and controlling (18)
It holds to receive adjustment signal, and adjusts the rotating speed of heat emission fan (4) according to adjustment signal.
3. a kind of intelligent heat dissipation PLC control cabinet according to claim 1, it is characterised in that：The cabinet (1) company of rotation outside
It is connected to the dust excluding plate (19) for being covered in air outlet (3), elastic string is connected between the dust excluding plate (19) and the cabinet (1)
(20)。
4. a kind of intelligent heat dissipation PLC control cabinet according to claim 1, it is characterised in that：It is fixed in the cabinet (1) to connect
It is connected to the peripheral frame (6) around air inlet (2) setting, is offered on the peripheral frame (6) mating to right with filter screen (12)
The inserting groove (11) that filter screen (12) is fixed.
5. a kind of intelligent heat dissipation PLC control cabinet according to claim 4, it is characterised in that：It is solid on the filter screen (12)
Surely it is connected with holding plate (13).
6. a kind of intelligent heat dissipation PLC control cabinet according to claim 5, it is characterised in that：The holding plate (13) and institute
It states and is connected with spring (16) between peripheral frame (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820532849.7U CN208095029U (en) | 2018-04-13 | 2018-04-13 | A kind of intelligent heat dissipation PLC control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820532849.7U CN208095029U (en) | 2018-04-13 | 2018-04-13 | A kind of intelligent heat dissipation PLC control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208095029U true CN208095029U (en) | 2018-11-13 |
Family
ID=64056035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820532849.7U Active CN208095029U (en) | 2018-04-13 | 2018-04-13 | A kind of intelligent heat dissipation PLC control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208095029U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375733A (en) * | 2018-12-03 | 2019-02-22 | 南昌科悦企业管理咨询有限公司 | A kind of anticlogging computer heat radiation host computer case |
| CN110841804A (en) * | 2019-11-25 | 2020-02-28 | 龙岩市龙电环保设备有限公司 | PLC control cabinet for electric precipitation and control method |
-
2018
- 2018-04-13 CN CN201820532849.7U patent/CN208095029U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375733A (en) * | 2018-12-03 | 2019-02-22 | 南昌科悦企业管理咨询有限公司 | A kind of anticlogging computer heat radiation host computer case |
| CN110841804A (en) * | 2019-11-25 | 2020-02-28 | 龙岩市龙电环保设备有限公司 | PLC control cabinet for electric precipitation and control method |
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