CN206075063U - A kind of hot-air blower control circuit - Google Patents
A kind of hot-air blower control circuit Download PDFInfo
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- CN206075063U CN206075063U CN201621017615.6U CN201621017615U CN206075063U CN 206075063 U CN206075063 U CN 206075063U CN 201621017615 U CN201621017615 U CN 201621017615U CN 206075063 U CN206075063 U CN 206075063U
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- control
- contactor
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- air blower
- control board
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Abstract
This utility model is related to a kind of hot-air blower control circuit, and the control circuit includes major loop and control loop, and blower motor, heater, phase sequence relay KX and AC DC power module PS are connected with the major loop；Control loop includes the first A.C. contactor KM1, the second A.C. contactor KM2, solid-state relay SSR and main control board；Operatings of the first A.C. contactor KM1 and solid-state relay SSR with the use of control heater；Second A.C. contactor KM2 controls the operating of blower motor；Main control board controls the first A.C. contactor KM1, the second A.C. contactor KM2 and solid-state relay SSR actions；AC DC power modules PS is that main control board 1 provides running voltage.Main control board and control panel are set in control loop, are made the control circuit integrated level of hot-air blower high, is easy to assembling wiring.And main control board can convenient replacing, be easy to upgrading extension.
Description
Technical field
This utility model belongs to electromechanical control field, and in particular to a kind of hot-air blower control circuit.
Background technology
Industrial air heater is a kind of common industrial drying equipment, is widely used in the row such as electronics, food, pharmacy, packaging
Industry.Industrial air heater includes electric heater unit and aerator, and during work, aerator in heater, makes blow air cold
After air is powered from the medial and lateral of helical form heating wire uniformly through, heater, heating wire produces heat, and by electric heating
The cold air of silk periphery carries out heat exchange, and cold air heats up and becomes hot-air, finally blows out hot blast in air outlet.
The control of existing hot-air blower product, the hot-air blower control circuit such as in Application No. CN201520594484.7 are led to
Cross and time-delay relay, temperature control table, multiple discrete switches and display lamp are arranged in control loop to realize to hot-air blower
Control.These discrete components and parts, cause the wiring of hot-air blower control circuit complicated, troublesome maintenance, and existing hot-air blower control
Circuit control function processed is single, is difficult extension upgrading, realizes intelligentized control method.
Utility model content
In view of this, the purpose of this utility model is to overcome the deficiencies in the prior art, there is provided set in a kind of control loop
Control panel and main control board are equipped with, integrated level height is easy to the hot-air blower control circuit of wiring, expansible upgrading.
To realize object above, this utility model is adopted the following technical scheme that：A kind of hot-air blower control circuit, the control electricity
Road includes major loop and control loop, and the main power of the major loop adopts three-phase five-wire mode, is connected with air blast on the major loop
Motor, heater, phase sequence relay KX and AC-DC power module PS；
The control loop includes the first A.C. contactor KM1, the second A.C. contactor KM2, solid-state relay SSR and master
Control circuit board；Fortune of the first A.C. contactor KM1 and solid-state relay SSR with the use of the control heater
Turn；The second A.C. contactor KM2 controls the operating of the blower motor；
The main control board controls the first A.C. contactor KM1, the second A.C. contactor KM2 and described solid
State relay SSR actions；AC-DC power module PS provides running voltage for the main control board.
Preferably, the control loop also includes control panel；The control panel is with the main control board by row
Line connects.
Preferably, microcontroller, drive circuit, optical coupling isolation circuit, small-sized relay are provided with the main control board
Device and terminal block；The drive circuit, the optical coupling isolation circuit are connected with the microcontroller respectively；The drive circuit
It is connected with the miniature relay；The miniature relay, the optical coupling isolation circuit are connected with the terminal block respectively.
Preferably, the thermorelay FR for overload protection is additionally provided with described control loop；The thermorelay FR
It is connected with the main control board.
Preferably, total power switch QC is provided with the major loop.
Preferably, the phase line input of AC-DC power module PS is provided with protection switch QR.
This utility model adopts above technical scheme, arranges main control board and control panel, make heat in control loop
Draught fan control circuit integrated level is high, is easy to assembling wiring.And main control board adopts microcontroller for control core, it is easy to upgrading
Extension, realizes intelligentized control method.
Description of the drawings
Fig. 1 is that this utility model preferred version is electrically connected schematic diagram；
Fig. 2 is this utility model preferred version main control board connection diagram；
Fig. 3 is this utility model preferred version terminal row wiring explanatory diagram.
In figure：1st, main control board；2nd, control panel；21st, microcontroller；22nd, drive circuit；23rd, optical coupling isolation circuit；
24th, miniature relay；25th, terminal block.
Specific embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
As shown in figure 1, a kind of hot-air blower control circuit, the control circuit includes major loop and control loop, and the master returns
The main power on road adopts three-phase five-wire mode, and blower motor, heater, phase sequence relay KX and AC-DC are connected with the major loop
Power module PS；The control loop includes the first A.C. contactor KM1, the second A.C. contactor KM2, solid-state relay SSR
With main control board 1；The first A.C. contactor KM1 and solid-state relay SSR is with the use of the control heater
Operating；The second A.C. contactor KM2 controls the operating of the blower motor；
The main control board controls the first A.C. contactor KM1, the second A.C. contactor KM2 and described solid
State relay SSR actions；AC-DC power module PS is that the main control board 1 provides running voltage.
Further, the control loop also includes control panel 2；The control panel 2 is logical with the main control board 1
Cross winding displacement connection.Control panel 2 has multiple buttons and display screen, for realizing the setting operation to hot-air blower, and parameter
Status display；Automatic time, the time of being automatically stopped such as are set, make hot-air blower realize automatization's circulation work.And operation control surface
Plate 2 is connected by winding displacement plug with the main control board 1, safeguards installation more convenient.
As shown in Figure 2 and Figure 3, as it is a kind of preferred embodiment, the main control board 2 be provided with microcontroller 21,
Drive circuit 22, optical coupling isolation circuit 23, miniature relay 24 and terminal block 25；The drive circuit 22, the optocoupler every
It is connected with the microcontroller 21 from circuit 23 respectively；The drive circuit 22 is connected with the miniature relay 24；It is described little
Type relay 24, the optical coupling isolation circuit 23 are connected with the terminal block 25 respectively.Terminal block 25 be used for main control board 1 with
The connection relaying of external devices.
Microcontroller 21 controls 24 action of miniature relay by drive circuit 22, and 24 contact of miniature relay is used as master control
The switching signal output of circuit board 2, wherein, drive circuit 22 can adopt transistor drive circuit；Optical coupling isolation circuit 23 is played
Insulation blocking is acted on, and prevents damage of the external input switches signal to microcontroller 21.
As shown in figure 3, be a specific embodiment terminal block connection diagram, wherein, external input switches signal is outside
Heating input, outside air-supply input, according to concrete application scene (as hot-air blower installation site it is higher), connect external switch, can
Realize the remotely control to hot-air blower；Switching signal is output as heating, blows and multiple warning outputs.
Additionally, similar with existing product, main control board 1 is also connected with temperature sensor (not shown), for examining
The air intake vent of calorimetric blower fan, air outlet temperature, to realize the closed loop control to temperature.Main control board 1 has overshoot warning work(
Can, control panel arranges predetermined temperature and overshoot, and when temperature control is lacked of proper care, such as predetermined temperature is 100 degree, after thermal-stable, prison
Temperature is measured higher than 110 degree or less than 90 degree, system can the alarm indicator on control panel, and stop heating.
Main control board 1, can (such as can be according to microcontroller from different model types according to different application scenarios
Different firmwares are divided), fast replaced, realized that the extension to hot-air blower is upgraded.
As one kind preferred embodiment, the thermorelay for overload protection is additionally provided with described control loop
FR；The thermorelay FR is electrically connected with the main control board.For the device damage for preventing blower motor overload from causing.
As one kind preferred embodiment, total power switch QC is provided with described major loop.
As one kind preferred embodiment, the phase line input of AC-DC power module PS is provided with protection switch QR.
The power supply of main control board 1 can individually be controlled, be easy to it is actually used in maintenance with safeguard.
As one kind preferred embodiment, AC-DC power module PS adopts universal direct current 12V output modules, buying
It is convenient, trust safely.
This utility model is not limited to above-mentioned preferred forms, and anyone can be drawn under enlightenment of the present utility model
Other various forms of products, however, make any change in its shape or structure, it is every with same as the present application or phase
Approximate technical scheme, all falls within protection domain of the present utility model.
Claims (6)
1. a kind of hot-air blower control circuit, it is characterised in that：The control circuit includes major loop and control loop, the major loop
Main power adopt three-phase five-wire mode, blower motor, heater, phase sequence relay KX and AC-DC are connected with the major loop electric
Source module PS；
The control loop includes the first A.C. contactor KM1, the second A.C. contactor KM2, solid-state relay SSR and master control electricity
Road plate；Operatings of the first A.C. contactor KM1 and solid-state relay SSR with the use of the control heater；Institute
State the operating that the second A.C. contactor KM2 controls the blower motor；
The main control board control the first A.C. contactor KM1, the second A.C. contactor KM2 and the solid-state after
Electrical equipment SSR actions；AC-DC power module PS provides running voltage for the main control board.
2. hot-air blower control circuit according to claim 1, it is characterised in that：The control loop also includes operation control surface
Plate；The control panel is connected by winding displacement with the main control board.
3. hot-air blower control circuit according to claim 1, it is characterised in that：Micro-control is provided with the main control board
Device processed, drive circuit, optical coupling isolation circuit, miniature relay and terminal block；The drive circuit, the optical coupling isolation circuit
It is connected with the microcontroller respectively；The drive circuit is connected with the miniature relay；The miniature relay, the light
Coupling isolation circuit is connected with the terminal block respectively.
4. hot-air blower control circuit according to claim 1, it is characterised in that：Be additionally provided with described control loop for
The thermorelay FR of overload protection；The thermorelay FR is connected with the main control board.
5. hot-air blower control circuit according to claim 1, it is characterised in that：Total power switch is provided with the major loop
QC。
6. hot-air blower control circuit according to claim 1, it is characterised in that：The phase line of AC-DC power module PS
Input is provided with protection switch QR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621017615.6U CN206075063U (en) | 2016-08-30 | 2016-08-30 | A kind of hot-air blower control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621017615.6U CN206075063U (en) | 2016-08-30 | 2016-08-30 | A kind of hot-air blower control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206075063U true CN206075063U (en) | 2017-04-05 |
Family
ID=58435287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621017615.6U Active CN206075063U (en) | 2016-08-30 | 2016-08-30 | A kind of hot-air blower control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206075063U (en) |
-
2016
- 2016-08-30 CN CN201621017615.6U patent/CN206075063U/en active Active
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