CN211449144U - Fan controller - Google Patents
Fan controller Download PDFInfo
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- CN211449144U CN211449144U CN201921708016.2U CN201921708016U CN211449144U CN 211449144 U CN211449144 U CN 211449144U CN 201921708016 U CN201921708016 U CN 201921708016U CN 211449144 U CN211449144 U CN 211449144U
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Abstract
The utility model provides a fan controller, include: the relay control device comprises an interface module, a power supply module, a relay control module and a state display module; the interface module comprises a first connecting terminal CN1, a second connecting terminal CN2 and a third connecting terminal CN 3; the interface module is connected with the power supply module and the relay control module; the state display module comprises a plurality of display lamps, and the display lamps are connected with the relay control module; the relay control module comprises a fire control unit, a BA control unit, a manual control unit and a fan starting control unit. The utility model discloses a circuit board structure, the interface is abundant, easy maintenance, change are simple, can reduce the fault rate of control box effectively.
Description
Technical Field
The utility model relates to an inside electrical control box of building especially relates to a ventilation, fire control fan electrical control box.
Background
At present, the electric control box of a ventilation fan and a fire-fighting fan is mainly used for achieving the required control function by utilizing a plurality of small relays which are directly connected through a wire in the control box.
A plurality of small relays are adopted and connected with the following defects through wires:
1. and manual wiring is adopted, the efficiency is low, and the error rate is high.
2. The terminal of the connecting wire is easy to loose and has high failure rate
3. Because the requirements for cost relation and intellectualization of fan control are higher and higher, and the specifications and requirements of interfaces are more and more, the fan control box is only produced by the most basic function configuration under the general condition. The fan control box is difficult to meet the requirements of customers, so that the interface is changed for the customer and the control function is increased on site.
4. Field maintenance is difficult. Because the functions are achieved by connecting a plurality of small relays and a large number of wires, the circuit is complex, and general property maintenance personnel are difficult to remove equipment faults after problems occur. After-sales service personnel of a control box manufacturer are required to go to the home for maintenance, so that time is delayed and cost is increased.
Disclosure of Invention
In view of the above shortcomings of the prior art, an object of the present invention is to provide a fan controller for solving the problem of the prior art that a plurality of small relays are connected through wires to cause the problems
1. Manual wiring is adopted, the efficiency is low, and the error rate is high;
2. the wiring terminal is easy to loosen and has high failure rate;
3. because the requirements for cost relation and intellectualization of fan control are higher and higher, and the specifications and requirements of interfaces are more and more, the fan control box is only produced by the most basic function configuration under the general condition. The fan control box is difficult to meet the requirements of customers, so that the interface is changed for the customers and the control function is added on site;
4. field maintenance is difficult. Because the functions are achieved by connecting a plurality of small relays and a large number of wires, the circuit is complex, and general property maintenance personnel are difficult to remove equipment faults after problems occur. The problem that after-sale service personnel of a control box manufacturer need to go to the door for maintenance, time is delayed, and cost is increased is solved.
To achieve the above and other related objects, the present invention provides a fan controller, including: the relay control device comprises an interface module, a power supply module, a relay control module and a state display module;
the interface module comprises a first connecting terminal CN1, a second connecting terminal CN2 and a third connecting terminal CN 3; the interface module is connected with the power supply module and the relay control module;
the state display module comprises a plurality of display lamps, and the display lamps are connected with the relay control module;
the relay control module comprises a fire control unit, a BA control unit, a manual control unit and a fan starting control unit;
the fire control unit is connected with the BA control unit and the fan starting control unit;
the BA control unit is connected with the manual control unit and the fan starting control unit;
the manual control unit is connected with the fan starting control unit;
the fan starting control unit is connected with an alternating current contactor and a thermal relay on the fan through the interface module and drives the fan to start or stop.
In an embodiment of the present invention, the fire-fighting control unit includes a relay KA7, a relay KA8, and a plurality of diodes;
the positive power supply V is connected with the positive terminal of the indicator light L1, and the negative terminal of the indicator light L1 is grounded through a resistor R1;
a normally closed contact of the relay KA7 is connected in series with a normally closed contact of the relay KA8, one end of the normally closed contact is connected with a positive power supply V after the normally closed contact is connected in series, and the other end of the normally closed contact is connected with the input end of the BA control unit;
the positive power supply V is also connected with one end of a normally open contact of the relay KA7, the other end of the normally open contact of the relay KA7 is connected with the positive end of the diode N1 and the positive end of the display lamp L8, the negative end of the diode N1 is connected with the input end of the fan starting control unit, and the negative end of the display lamp L8 is grounded through a resistor R8;
the positive power supply V is also connected with one end of a normally open contact of the relay KA8, the other end of the normally open contact of the relay KA8 is connected with the positive end of the diode N2 and the positive end of the display lamp L7, the negative end of the diode N2 is connected with the input end of the fan starting control unit, and the negative end of the display lamp L7 is grounded through a resistor R7;
the power supply end of the relay KA7 is connected between the first pin and the second pin of the second connecting terminal CN 2;
the power supply end of the relay KA8 is connected between the fifth pin and the sixth pin of the second connection terminal CN 2.
In an embodiment of the present invention, the BA control unit includes a relay KA10, a switch BAH, a switch BAL, and a plurality of diodes;
a normally open contact of the switch BAH is connected between the first pin and the second pin of the third wiring terminal CN 3;
a normally open contact of the switch BAL is connected between the first pin and the third pin of a third wiring terminal CN 3;
the output end of the fire control unit is connected with one end of a normally closed contact of a relay KA10, and the other end of the normally closed contact of the relay KA10 is connected with the input end of the manual control unit;
the output end of the fire-fighting control unit is also connected with one end of a normally open contact of a switch BAL and one end of a normally open contact of a switch BAH, the other end of the switch BAL is connected with the positive end of a diode N3 and the positive end of a diode N4, and the negative end of a diode N3 is connected with the input end of the fan starting control unit; the other end of the switch BAH is connected with the positive end of a diode N5 and the positive end of a diode N6, the negative end of a diode N4 and the negative end of a diode N5 are connected and then connected with the positive end of a display lamp L9 and one end of a relay KA10 power interface, the negative end of the display lamp L9 is grounded through a resistor R9, the other end of the relay KA10 power interface is grounded, and the negative end of a diode N6 is connected with the input end of the fan starting control unit.
In an embodiment of the present invention, the manual control unit includes a relay KA11, a relay KA21, a key SB1, a key SB2, a key SB3, and a plurality of diodes;
the normally closed contact of the key SB1 is connected between the fifth pin and the sixth pin of the first wiring terminal CN 1;
the normally open contact of the key SB2 is connected between the sixth pin and the seventh pin of the first connecting terminal CN 1;
the normally open contact of the key SB3 is connected between the sixth pin and the eighth pin of the first connecting terminal CN 1;
one end of the normally closed contact of the key SB1 is connected with the output end of the BA control unit;
the normally open contact of the key SB3 is connected in parallel with the normally open contact of the relay KA21, one end of the key SB1 after being connected in parallel is connected with the other end of the normally closed contact, and the other end of the key SB3 after being connected in parallel is connected with the positive end of a diode N7;
the normally open contact of the key SB2 is connected in parallel with the normally open contact of the relay KA11, one end of the key SB1 after being connected in parallel is connected with the other end of the normally closed contact of the key SB1, and the other end of the key SB2 after being connected in parallel is connected with the positive ends of the diode N8 and the diode N9;
and the negative terminals of the diode N7, the diode N8 and the diode N9 are connected with the input terminal of the fan starting control unit.
In an embodiment of the present invention, the fan start control unit includes a transistor Q1, a fault switch S1, a fault switch S2, and a plurality of relays;
one end of a normally closed contact of the relay KA1 is connected with the negative electrode end of the diode N3 of the BA control unit and the negative electrode end of the diode N7 of the manual control unit;
the normally closed contact of the relay KA6 is connected with the normally open contact of the fault switch S1 in parallel, one end of the normally closed contact after being connected with the relay KA1 is connected with the other end of the normally closed contact of the relay KA9, the other end of the normally closed contact of the relay KA9 is connected with one end of the display lamp L3, one end of the power interface of the relay KA2 and one end of the power interface of the relay KA21, the negative end of the display lamp L3 is grounded through a resistor R3, and the other end of the power interface of the relay KA2 and the other end of the power interface of the relay KA21 are grounded;
one end of a normally closed contact of the relay KA2 is connected with the negative ends of a diode N1 and a diode N2 of the fire control unit; one end of a normally closed contact of the relay KA2 is also connected with the negative electrode end of a diode N8 of the BA control unit;
the normally closed contact of the relay KA4 is connected with the normally open contact of the fault switch S2 in parallel, one end of the normally closed contact after the parallel connection is connected with the other end of the normally closed contact of the relay KA2, the other end of the normally closed contact after the parallel connection is connected with one end of the normally closed contact of the relay KA9, the other end of the normally closed contact of the relay KA9 is connected with the positive end of the display lamp L2, one end of the power interface of the relay KA1 and the collector of the triode Q1, and the negative end of the display lamp L2 is grounded; the other end of the power interface of the relay KA1 is grounded;
one end of the resistor R10 is connected with the cathode end of the diode N9 of the manual control unit, the other end of the resistor R10 is connected with the base electrode of the triode Q1, the emitter electrode of the triode Q1 is connected with one end of the power interface of the relay KA11, and the other end of the power interface of the relay KA11 is grounded;
a normally open contact of the relay KA1 is connected between the first pin and the third pin of the first connecting terminal CN 1;
the normally open contact of the relay KA2 is connected between the first pin and the fourth pin of the first connection terminal CN 1.
In an embodiment of the present invention, the relay control module further includes a feedback unit, and the feedback unit includes a diode N10, a diode N11, a buzzer B1, and a plurality of relays;
a normally open contact of the relay KA3 is connected between the third pin and the fourth pin of the second wiring terminal CN 2;
the normally open contact of the relay KA3 is also connected between the seventh pin and the eighth pin of the second wiring terminal CN 2;
a normally open contact of the relay KA4 is connected between the ninth pin and the tenth pin of the second wiring terminal CN 2;
a normally open contact of the relay KA6 is connected between the fourth pin and the fifth pin of the third wiring terminal CN 3;
a normally open contact of the relay KA5 is connected between the fourth pin and the sixth pin of the third wiring terminal CN 3;
the positive power supply V is connected with one end of a normally open contact of an alternating current contactor KM1, one end of a normally open contact of an alternating current contactor KM2, one end of a normally open contact of a thermal relay KQ1 and one end of a normally open contact of a thermal relay KQ2 on the fan through the interface module;
the other end of the normally open contact of the alternating current contactor KM2 is connected with one end of a power interface of a relay KA 3;
the other end of the normally open contact of the alternating current contactor KM1 is connected with one end of a power interface of a relay KA 5;
the other end of the normally open contact of the thermal relay KQ1 is connected with the positive end of a display lamp L5, one end of a relay KA4 power interface and the positive end of a diode N9, and the negative end of the display lamp L5 is grounded through a resistor R5; the other end of the power interface of the relay KA4 is grounded;
the other end of the normally open contact of the thermal relay KQ2 is connected with the positive terminal of the diode N11, one end of the power interface of the relay KA6 and the positive terminal of the display lamp L4, the negative terminals of the diode N9 and the diode N10 are both connected with one end of the positive power supply of the buzzer B1, the negative terminal of the display lamp L4 is grounded through a resistor R4, and the other end of the power interface of the relay KA3, the other end of the power interface of the relay KA4, the other end of the power interface of the relay KA5, the other end of the power interface of the relay KA6 and the negative power supply of the buzzer B1 are both grounded.
In an embodiment of the present invention, the relay control module further includes a fire-proof valve control unit, where the fire-proof valve control unit includes a transistor Q2, a resistor R2, a diode N11, a buzzer B1, a fire-proof valve switch FD, and a relay KA 9;
the fire-proof valve switch FD is connected between the eleventh pin and the twelfth pin of the second wiring terminal CN 2;
the positive power supply V is connected with an emitting electrode of the triode Q2 and one end of a normally open contact of a fire-proof valve switch FD, the other end of the normally open contact of the fire-proof valve switch FD is connected with a base electrode of the triode Q2 and one end of a resistor R11, and the other end of the resistor R11 is grounded; the collector of the triode Q2 is connected with the positive terminal of the diode N11, one end of the power interface of the relay KA9 and the positive terminal of the display lamp L6, the other end of the diode N11 is connected with one end of the positive power supply of the buzzer B1, the negative terminal of the display lamp L6 is grounded through a resistor R6, and the negative power supply of the buzzer B1, the other end of the power interface of the relay KA9 and the other end of the resistor R6 are grounded.
As above, the utility model discloses a fan controller has following beneficial effect:
(1) the PCB copper clad plate structure is adopted, so that the production standardization is formed, the rate of certified products of products is greatly improved, and the failure rate of a control box is effectively reduced;
(2) the structure is compact, the occupied space is small, the installation is convenient, the production efficiency is effectively improved, and the production cost is reduced;
(3) all components are packaged in a flame-retardant plastic box, and a guide rail type mounting mode is adopted, so that the assembly and disassembly are flexible and rapid;
(4) complete functions, rich interfaces, convenient maintenance and simple replacement.
(5) Compared with the scheme of adopting electronic devices such as a single chip microcomputer and the like, the scheme of adopting the pure relay has the advantages of long service life, high environmental adaptability, good reliability and strong overload resistance, and is more suitable for the fire fighting requirements of all parts in China at present.
Drawings
Fig. 1 shows the overall structure block diagram of the present invention.
Fig. 2 shows a wiring diagram of the double-speed fan of the present invention.
Fig. 3 shows a wiring diagram of the single-speed fan of the present invention.
Fig. 4 is a schematic diagram of the power module according to the present invention.
Fig. 5 shows that the utility model discloses fire control unit and BA the control unit wiring schematic diagram.
Fig. 6 shows the wiring schematic diagram of the manual control unit and the fan start control unit of the present invention.
Fig. 7 is a schematic diagram of the feedback unit of the present invention.
Fig. 8 shows the wiring diagram of the fire-proof valve control unit of the present invention.
Fig. 9 is a schematic diagram of the wiring of the dual-speed fan of the present invention.
Fig. 10 is a schematic diagram of the single-speed fan according to the present invention.
Description of the element reference numerals
1. An interface module; 2. a power supply module; 3. a relay control module; 4. a status display module;
301. a fire control unit; 302. a BA control unit; 303. a manual control unit;
304. a fan start control unit; 305. a feedback unit; 306. a fire damper control unit.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
Referring to fig. 1, the present invention provides a fan controller, including: the device comprises an interface module 1, a power module 2, a relay control module 3 and a state display module 4.
The utility model discloses total three kinds of control mode: fire control, BA intelligent control and manual button control; the starting priority is highest in fire control, next is BA intelligent control, and the lowest is manual button control.
The relay control module 3 includes a fire control unit 301, a BA control unit 302, a manual control unit 303, a blower start control unit 304, a feedback unit 305, and a fire valve control unit 306.
Referring to fig. 2, the interface module 1 includes a first connection terminal CN1, a second connection terminal CN2 and a third connection terminal CN 3; the fan controller is connected with an alternating current contactor KM1, an alternating current contactor KM2, an alternating current contactor KM3, a thermal relay KQ1 and a thermal relay KQ2 on the fan through the wiring terminal CN 1.
A first pin and a second pin of the first wiring terminal CN1 are connected to a 220V alternating current power supply;
the fifth pin, the sixth pin, the seventh pin and the eighth pin of the first connection terminal CN1 are connected with a key SB1, a key SB2 and a key SB 3; the key SB1 is a normally closed switch, and the keys SB2 and SB3 are normally open switches.
The ninth pin, the tenth pin and the twelfth pin of the first wiring terminal CN1 are connected with the normally open contacts of an alternating current contactor KM2 and an alternating current contactor KM 1;
the ninth pin, the eleventh pin and the thirteenth pin of the first wiring terminal CN1 are connected with the normally open contacts of the thermal relay KQ1 and the thermal relay KQ 2;
the first pin, the second pin, the fifth pin and the sixth pin of the second connection terminal CN2 are fire-fighting DC24V signal input ports and are respectively connected with power interfaces of the relay KA7 and the relay KA 8.
The third pin, the fourth pin, the seventh pin and the eighth pin of the second wiring terminal CN2 are all connected with a normally open contact of a relay KA 3;
the ninth pin and the tenth pin of the second connecting terminal CN2 are connected with normally open contacts of the relay KA 4;
and the eleventh pin and the twelfth pin of the second wiring terminal CN2 are connected with a fire-proof valve switch FD, and the fire-proof valve switch FD is a normally open switch.
The first pin, the second pin and the third pin of the third wiring terminal CN3 are connected with the normally open contacts of the switch BAH and the switch BAL;
the fourth pin, the fifth pin and the sixth pin of the third wiring terminal CN3 are connected with the normally open contacts of the relay KA5 and the relay KA 6.
Referring to fig. 4, the input terminal of the power module 2 is connected to the first pin and the second pin of the first connection terminal CN1, and after the first pin and the second pin are converted from AC220V to AC19V, the transformer T1, the rectifier bridge D1 and the filter capacitor C1, a 24V positive power supply V is output, so as to provide a working power supply for the whole fan controller and the external device.
Referring to fig. 1, the fire fighting control unit 301 is connected to the interface module 1, the BA control unit 302 and the blower start control unit 304;
referring to fig. 2, the first pin, the second pin, the fifth pin and the sixth pin of the second connection terminal CN2 are signal input ports of the fire protection DC24V, and when the external input DC24V is inputted, the coils of the relay KA7 and the relay KA8 are powered on.
Referring to fig. 5 and 6, after the coils of the relay KA7 and the relay KA8 are energized, the normally closed contact is opened, and the BA control unit 302 and the manual control unit 303 are disconnected; meanwhile, the normally open contacts of the relay KA7 and the relay KA8 are closed, so that the coil of the relay KA1 of the fan starting control unit 304 is electrified.
Referring to fig. 2 and 9, after the coil of the relay KA1 is powered on, the normally open contact is closed, the third pin of the first connection terminal CN1 is connected to a 220V ac power supply, the ac contactor KM2 and the ac contactor KM3 which are externally connected to the third pin of the first connection terminal CN1 are powered on, and the fan runs at a high speed.
When the DC24V signal is removed, the relay KA7 and the relay KA8 are reset due to power loss, so that the relay KA1, the alternating current contactor KM2 and the alternating current contactor KM3 are reset after power loss, and the fan stops running.
If the external fire-fighting signal is a passive contact signal, the passive contact can be connected into the sixth pin and the twelfth pin of the second wiring terminal CN2, and meanwhile, the fifth pin and the thirteenth pin are in short circuit through wires to drive the fan to operate at a high speed.
Referring to fig. 1, the BA control unit 302 is connected to the interface module 1, the manual control unit 303 and the blower start control unit 304;
referring to fig. 2, 5 and 6, the first pin and the second pin of the third connection terminal CN3 are used for connecting high-speed BA passive signals. When the switch BAH connected to the third connection terminal CN3 is closed, the coil of the relay KA10 is electrified, the normally closed contact of the relay KA10 is disconnected, and the manual control unit 303 is disconnected; and simultaneously, a coil of the relay KA1 of the fan starting control unit 304 is electrified.
Referring to fig. 2 and 9, after the coil of the relay KA1 is powered on, the normally open contact is closed, the third pin of the first connection terminal CN1 is connected to a 220V ac power supply, the ac contactor KM2 and the ac contactor KM3 which are externally connected to the third pin of the first connection terminal CN1 are powered on, and the fan runs at a high speed. Otherwise, the fan stops working when the switch BAH is powered off.
Referring to fig. 2, 5 and 6, the first pin and the third pin of the third connection terminal CN3 are used for connecting the low-speed BA passive signal. When the switch BAL connected to the third connection terminal CN3 is closed, the coil of the relay KA10 is electrified, the normally closed contact of the relay KA10 is disconnected, and the manual control unit 303 is disconnected; and simultaneously, a coil of the relay KA2 of the fan starting control unit 304 is electrified.
Referring to fig. 2 and 9, after the coil of the relay KA2 is powered on, the normally open contact is closed, the fourth pin of the first connection terminal CN1 is connected to a 220V ac power supply, the ac contactor KM1 externally connected to the fourth pin of the first connection terminal CN1 is powered on, and the fan operates at a low speed. Otherwise, the fan stops working when the switch BAL is powered off.
Referring to fig. 1, the manual control unit 303 is connected to the interface module 1, the BA control unit 302 and the blower start control unit 304;
referring to fig. 2 and 6, when the button SB2 connected to the first connection terminal CN1 is pressed, the normally open contacts of the coils of the relay KA1 and the relay KA11 of the fan start control unit 304 are turned on, the third pin of the first connection terminal CN1 is connected to the 220V ac power supply, the ac contactor KM2 and the ac contactor KM3 externally connected to the third pin of the first connection terminal CN1 are turned on, and the fan operates at a high speed. Meanwhile, the relay KA11 generates self protection, the fan continues to operate at high speed after the button SB2 is released, and the fan stops operating after the button SB1 is pressed.
The button SB3 of connecting on the first binding post CN1 is pressed, and normally open contact is closed after the coil of relay KA2, relay KA21 of fan start control unit 304 get the electricity, and 220V alternating current power supply is inserted to the fourth pin of first binding post CN1, and alternating current contactor KM1 external on the fourth pin of first binding post CN1 gets the electricity action, and the fan low-speed operation. Meanwhile, the relay KA21 generates self protection, the fan continues to operate at high speed after the button SB3 is released, and the fan stops operating after the button SB1 is pressed.
Referring to fig. 1, the feedback unit 305 is connected to the interface module 1;
referring to fig. 2 and 7, when the fan runs at a high speed, the coil of the alternating current contactor KM2 is powered on, and the normally open contact is closed, so that the normally open contact is closed after the coil of the relay KA3 is powered on; the third pin, the fourth pin, the seventh pin and the eighth pin of the second connection terminal CN2 obtain a high-speed operation feedback signal.
When the fan runs at a low speed, the coil of the alternating current contactor KM1 is electrified, and the normally open contact is closed, so that the normally open contact is closed after the coil of the relay KA5 is electrified; the fourth pin and the sixth pin of the third connection terminal CN3 receive the low-speed operation feedback signal.
Referring to fig. 7 and 9, when the fan runs at a high speed, the coil of the thermal relay KQ1 is powered, when a fault occurs, the closed contact is opened, and the alternating current contactor KM2 and the alternating current contactor KM3 are powered off; meanwhile, a normally open contact of the thermal relay KQ1 is closed, a coil of the relay KA4 is electrified, the normally open contact is closed, and a ninth pin and a tenth pin of a second connecting terminal CN2 obtain high-speed fault feedback signals; meanwhile, the indicator light L5 is lighted, and the buzzer B1 works.
Referring to fig. 6, after the coil of the relay KA4 is electrified, the normally closed contact is opened, and the relay KA1 is electrified, so that the operation of the fan is stopped.
When the fan runs at a low speed, a coil of the thermal relay KQ2 is electrified, when a fault occurs, a closed contact is disconnected, and the alternating current contactor KM1 loses electricity; meanwhile, a normally open contact of the thermal relay KQ2 is closed, a coil of the relay KA6 is electrified, the normally open contact is closed, and a fourth pin and a fifth pin of a third connecting terminal CN3 obtain low-speed fault feedback signals; meanwhile, the indicator light L4 is lighted, and the buzzer B1 works.
Referring to fig. 6, after the coil of the relay KA6 is electrified, the normally closed contact is opened, and the relay KA2 is electrified, so that the operation of the fan is stopped.
Referring to fig. 1, the fire damper control unit 306 is connected to the interface module 1;
referring to fig. 2 and 8, a fire-proof valve switch FD is connected to the second connection terminal CN2, and if a fire disaster occurs, the fire-proof valve switch FD is activated, the normally open contact is closed, the transistor Q2 is turned on, the coil of the relay KA9 is energized, and the normally closed contact is opened, so that the relay KA1 or the relay KA2 is caused, thereby stopping the operation of the blower, and the buzzer B1 is operated.
Referring to fig. 5 to 7, the status display module 4 includes a plurality of display lamps, and the display lamps are connected to the relay control module 3. When different control modules are in working states, the corresponding indicator lamps are lightened.
Referring to fig. 2, the display lamp is further connected to an ac contactor KM1 and an ac contactor KM2, and displays a low-speed operation state, a high-speed operation state, and a stop state.
The utility model discloses both can apply to the control of double-speed fan, also can apply to the control of single-speed fan. The control circuit of the double-speed fan is described above.
Referring to fig. 3 and 10, a control loop composed of single-speed fans is shown to meet the above-mentioned various control requirements and control the operation of the single-speed fans.
To sum up, the utility model adopts the PCB copper clad plate structure, which forms the production standardization, greatly improves the rate of certified products of products and effectively reduces the failure rate of the control box;
the utility model has compact structure, small occupied space and convenient installation, effectively improves the production efficiency and reduces the production cost;
all components of the utility model are packaged in a flame-retardant plastic box, and a guide rail type mounting mode is adopted, so that the disassembly and the assembly are flexible and rapid;
the utility model discloses multiple functional, interface are abundant, easy maintenance, change are simple.
The utility model discloses a pure relay scheme is than adopting electronic device schemes such as singlechip long service life, environmental suitability height, good reliability, resistant overload capacity reinforce, more adapts to the fire control requirement of present internal each place.
Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. A fan controller, comprising: the relay control device comprises an interface module, a power supply module, a relay control module and a state display module;
the interface module comprises a first connecting terminal CN1, a second connecting terminal CN2 and a third connecting terminal CN 3; the interface module is connected with the power supply module and the relay control module;
the state display module comprises a plurality of display lamps, and the display lamps are connected with the relay control module;
the relay control module comprises a fire control unit, a BA control unit, a manual control unit and a fan starting control unit;
the fire control unit is connected with the BA control unit and the fan starting control unit;
the BA control unit is connected with the manual control unit and the fan starting control unit;
the manual control unit is connected with the fan starting control unit;
the fan starting control unit is connected with an alternating current contactor and a thermal relay on the fan through the interface module and drives the fan to start or stop.
2. The fan controller of claim 1, wherein: the fire control unit comprises a relay KA7, a relay KA8 and a plurality of diodes;
the positive power supply V is connected with the positive terminal of the indicator light L1, and the negative terminal of the indicator light L1 is grounded through a resistor R1;
a normally closed contact of the relay KA7 is connected in series with a normally closed contact of the relay KA8, one end of the normally closed contact is connected with a positive power supply V after the normally closed contact is connected in series, and the other end of the normally closed contact is connected with the input end of the BA control unit;
the positive power supply V is also connected with one end of a normally open contact of the relay KA7, the other end of the normally open contact of the relay KA7 is connected with the positive end of the diode N1 and the positive end of the display lamp L8, the negative end of the diode N1 is connected with the input end of the fan starting control unit, and the negative end of the display lamp L8 is grounded through a resistor R8;
the positive power supply V is also connected with one end of a normally open contact of the relay KA8, the other end of the normally open contact of the relay KA8 is connected with the positive end of the diode N2 and the positive end of the display lamp L7, the negative end of the diode N2 is connected with the input end of the fan starting control unit, and the negative end of the display lamp L7 is grounded through a resistor R7;
the power supply end of the relay KA7 is connected between the first pin and the second pin of the second connecting terminal CN 2;
the power supply end of the relay KA8 is connected between the fifth pin and the sixth pin of the second connection terminal CN 2.
3. The fan controller of claim 1, wherein: the BA control unit comprises a relay KA10, a switch BAH, a switch BAL and a plurality of diodes;
a normally open contact of the switch BAH is connected between the first pin and the second pin of the third wiring terminal CN 3;
a normally open contact of the switch BAL is connected between the first pin and the third pin of a third wiring terminal CN 3;
the output end of the fire control unit is connected with one end of a normally closed contact of a relay KA10, and the other end of the normally closed contact of the relay KA10 is connected with the input end of the manual control unit;
the output end of the fire-fighting control unit is also connected with one end of a normally open contact of a switch BAL and one end of a normally open contact of a switch BAH, the other end of the switch BAL is connected with the positive end of a diode N3 and the positive end of a diode N4, and the negative end of a diode N3 is connected with the input end of the fan starting control unit; the other end of the switch BAH is connected with the positive end of a diode N5 and the positive end of a diode N6, the negative end of a diode N4 and the negative end of a diode N5 are connected and then connected with the positive end of a display lamp L9 and one end of a relay KA10 power interface, the negative end of the display lamp L9 is grounded through a resistor R9, the other end of the relay KA10 power interface is grounded, and the negative end of a diode N6 is connected with the input end of the fan starting control unit.
4. The fan controller of claim 1, wherein: the manual control unit comprises a relay KA11, a relay KA21, a key SB1, a key SB2, a key SB3 and a plurality of diodes;
the normally closed contact of the key SB1 is connected between the fifth pin and the sixth pin of the first wiring terminal CN 1;
the normally open contact of the key SB2 is connected between the sixth pin and the seventh pin of the first connecting terminal CN 1;
the normally open contact of the key SB3 is connected between the sixth pin and the eighth pin of the first connecting terminal CN 1;
one end of the normally closed contact of the key SB1 is connected with the output end of the BA control unit;
the normally open contact of the key SB3 is connected in parallel with the normally open contact of the relay KA21, one end of the key SB1 after being connected in parallel is connected with the other end of the normally closed contact, and the other end of the key SB3 after being connected in parallel is connected with the positive end of a diode N7;
the normally open contact of the key SB2 is connected in parallel with the normally open contact of the relay KA11, one end of the key SB1 after being connected in parallel is connected with the other end of the normally closed contact of the key SB1, and the other end of the key SB2 after being connected in parallel is connected with the positive ends of the diode N8 and the diode N9;
and the negative terminals of the diode N7, the diode N8 and the diode N9 are connected with the input terminal of the fan starting control unit.
5. The fan controller of claim 1, wherein: the fan starting control unit comprises a triode Q1, a fault switch S1, a fault switch S2 and a plurality of relays;
one end of a normally closed contact of the relay KA1 is connected with the negative electrode end of the diode N3 of the BA control unit and the negative electrode end of the diode N7 of the manual control unit;
the normally closed contact of the relay KA6 is connected with the normally open contact of the fault switch S1 in parallel, one end of the normally closed contact after being connected with the relay KA1 is connected with the other end of the normally closed contact of the relay KA9, the other end of the normally closed contact of the relay KA9 is connected with one end of the display lamp L3, one end of the power interface of the relay KA2 and one end of the power interface of the relay KA21, the negative end of the display lamp L3 is grounded through a resistor R3, and the other end of the power interface of the relay KA2 and the other end of the power interface of the relay KA21 are grounded;
one end of a normally closed contact of the relay KA2 is connected with the negative ends of a diode N1 and a diode N2 of the fire control unit; one end of a normally closed contact of the relay KA2 is also connected with the negative electrode end of a diode N8 of the BA control unit;
the normally closed contact of the relay KA4 is connected with the normally open contact of the fault switch S2 in parallel, one end of the normally closed contact after the parallel connection is connected with the other end of the normally closed contact of the relay KA2, the other end of the normally closed contact after the parallel connection is connected with one end of the normally closed contact of the relay KA9, the other end of the normally closed contact of the relay KA9 is connected with the positive end of the display lamp L2, one end of the power interface of the relay KA1 and the collector of the triode Q1, and the negative end of the display lamp L2 is grounded; the other end of the power interface of the relay KA1 is grounded;
one end of the resistor R10 is connected with the cathode end of the diode N9 of the manual control unit, the other end of the resistor R10 is connected with the base electrode of the triode Q1, the emitter electrode of the triode Q1 is connected with one end of the power interface of the relay KA11, and the other end of the power interface of the relay KA11 is grounded;
a normally open contact of the relay KA1 is connected between the first pin and the third pin of the first connecting terminal CN 1;
the normally open contact of the relay KA2 is connected between the first pin and the fourth pin of the first connection terminal CN 1.
6. The fan controller of claim 1, wherein: the relay control module further comprises a feedback unit comprising a diode N10, a diode N11, a buzzer B1, and a plurality of relays;
a normally open contact of the relay KA3 is connected between the third pin and the fourth pin of the second wiring terminal CN 2;
the normally open contact of the relay KA3 is also connected between the seventh pin and the eighth pin of the second wiring terminal CN 2;
a normally open contact of the relay KA4 is connected between the ninth pin and the tenth pin of the second wiring terminal CN 2;
a normally open contact of the relay KA6 is connected between the fourth pin and the fifth pin of the third wiring terminal CN 3;
a normally open contact of the relay KA5 is connected between the fourth pin and the sixth pin of the third wiring terminal CN 3;
the positive power supply V is connected with one end of a normally open contact of an alternating current contactor KM1, one end of a normally open contact of an alternating current contactor KM2, one end of a normally open contact of a thermal relay KQ1 and one end of a normally open contact of a thermal relay KQ2 on the fan through the interface module;
the other end of the normally open contact of the alternating current contactor KM2 is connected with one end of a power interface of a relay KA 3;
the other end of the normally open contact of the alternating current contactor KM1 is connected with one end of a power interface of a relay KA 5;
the other end of the normally open contact of the thermal relay KQ1 is connected with the positive end of a display lamp L5, one end of a relay KA4 power interface and the positive end of a diode N9, and the negative end of the display lamp L5 is grounded through a resistor R5; the other end of the power interface of the relay KA4 is grounded;
the other end of the normally open contact of the thermal relay KQ2 is connected with the positive terminal of the diode N11, one end of the power interface of the relay KA6 and the positive terminal of the display lamp L4, the negative terminals of the diode N9 and the diode N10 are both connected with one end of the positive power supply of the buzzer B1, the negative terminal of the display lamp L4 is grounded through a resistor R4, and the other end of the power interface of the relay KA3, the other end of the power interface of the relay KA4, the other end of the power interface of the relay KA5, the other end of the power interface of the relay KA6 and the negative power supply of the buzzer B1 are both grounded.
7. The fan controller of claim 1, wherein: the relay control module further comprises a fire-proof valve control unit, wherein the fire-proof valve control unit comprises a triode Q2, a resistor R2, a diode N11, a buzzer B1, a fire-proof valve switch FD and a relay KA 9;
the fire-proof valve switch FD is connected between the eleventh pin and the twelfth pin of the second wiring terminal CN 2;
the positive power supply V is connected with an emitting electrode of the triode Q2 and one end of a normally open contact of a fire-proof valve switch FD, the other end of the normally open contact of the fire-proof valve switch FD is connected with a base electrode of the triode Q2 and one end of a resistor R11, and the other end of the resistor R11 is grounded; the collector of the triode Q2 is connected with the positive terminal of the diode N11, one end of the power interface of the relay KA9 and the positive terminal of the display lamp L6, the other end of the diode N11 is connected with one end of the positive power supply of the buzzer B1, the negative terminal of the display lamp L6 is grounded through a resistor R6, and the negative power supply of the buzzer B1, the other end of the power interface of the relay KA9 and the other end of the resistor R6 are grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921708016.2U CN211449144U (en) | 2019-10-12 | 2019-10-12 | Fan controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921708016.2U CN211449144U (en) | 2019-10-12 | 2019-10-12 | Fan controller |
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| CN211449144U true CN211449144U (en) | 2020-09-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115539425A (en) * | 2022-10-13 | 2022-12-30 | 广东南华西电气有限公司 | Smoke-preventing and exhausting fan control system and method |
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2019
- 2019-10-12 CN CN201921708016.2U patent/CN211449144U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115539425A (en) * | 2022-10-13 | 2022-12-30 | 广东南华西电气有限公司 | Smoke-preventing and exhausting fan control system and method |
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