CN203928278U - Universal fixed frequency air conditioner control circuit - Google Patents
Universal fixed frequency air conditioner control circuit Download PDFInfo
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- CN203928278U CN203928278U CN201420265186.9U CN201420265186U CN203928278U CN 203928278 U CN203928278 U CN 203928278U CN 201420265186 U CN201420265186 U CN 201420265186U CN 203928278 U CN203928278 U CN 203928278U
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Abstract
The utility model relates to a kind of universal fixed frequency air conditioner control circuit, comprises central processor unit, power supply processing unit, infrared receiver, driver element, indoor set blower fan control module, compressor control unit, four-way change-over valve control module, outdoor fan control module and pendulum leaf control module.Its objective is a kind of universal fixed frequency air conditioner control circuit is provided, can mate the blower fan that adopts different motors.This device adopts reasonably design, indoor fan tap Electric Machine Control and indoor fan PG Electric Machine Control are integrated in a fixed frequency air conditioner indoor controller, with respect to prior art, both saved maintenance time, can not increase extra too many cost simultaneously yet, without two kinds of dissimilar control circuits of buying, maintenance time and maintenance cost have been taken into account.
Description
Technical field
The utility model belongs to intelligent control circuit field, relates to ac control circuit, relates in particular to universal fixed frequency air conditioner control circuit.
Background technology
Before 2005, the air-conditioning going on the market on market, especially family's wall-hanging air conditioner, adopt fixed frequency air conditioner mostly.The blower fan that the indoor set of fixed frequency air conditioner now adopts is divided into two classes mostly: a class is the blower fan that adopts tap motor, and the high, medium and low third speed of this blower fan adopts respectively three relays to realize three different speed; Another kind of is the blower fan that adopts PG motor, thereby this fan speed high, medium and low is the power that adopts controllable silicon to control blower fan, realizes the object of the speed that regulates blower fan.And indoor set control circuit is also according to two kinds of different air-blower controls are divided into two large classes equally.
After 2010, these air-conditionings have part because the damage of control circuit can not be used.When these air-conditionings are keeped in repair, maintenance personal need to go to the interior machine of opening damage air-conditioning could differentiate any motor of employing, thereby determines to change which kind of control circuit.Due to when not opening the interior machine that damages air-conditioning, maintenance personal does not know the motor that blower fan adopts, in order to save time, therefore maintenance personal need to carry two kinds of dissimilar control circuits and go to maintenance simultaneously, so maintenance personal just needs to purchase the control circuit of two types to replace at any time.Therefore,, for above-mentioned situation, maintenance personal can not take into account in the two in maintenance time and maintenance cost.
Therefore, how solving the deficiency that above-mentioned prior art exists, is the problem that the utility model is mainly studied.
Summary of the invention
The utility model provides a kind of universal fixed frequency air conditioner control circuit, its objective is a kind of universal fixed frequency air conditioner control circuit is provided, can mate the blower fan that adopts different motors, this maintenance time and maintenance cost, both saved maintenance time, also can not increase too many cost, without two kinds of dissimilar control circuits of buying, the buying that has reduced maintenance personal drops into simultaneously.
For achieving the above object, the technical solution of the utility model is: a kind of universal fixed frequency air conditioner control circuit, it is characterized in that: comprise central processor unit, power supply processing unit, infrared receiver, driver element, indoor set blower fan control module, compressor control unit, four-way change-over valve control module, outdoor fan control module and pendulum leaf control module, wherein
Described central processor unit has the single-chip microcomputer U1 that a model is SH79F081AM, the pin 6 of described single-chip microcomputer U1 connects a reset circuit, and pin 7 and pin 8 connect oscillating circuit, and pin 27 connects indoor temperature Acquisition Circuit, pin 28 connects indoor pipe temperature Acquisition Circuit, pin 10 ground connection;
Described driver element has the first driving chip U2 and the second driving chip U3 that model is ULN2003A, seven pins of the described first pin 1 that drives chip U2 to seven pins of pin 7 and the pin 16 of described single-chip microcomputer U1 to pin 22 connect one to one successively, described first drives pin 8 ground connection of chip U2, and described first drives the pin 9 of chip U2 to connect power supply; Four pins of the described second pin 1 that drives chip U3 to four pins of pin 4 and the pin 23 of described single-chip microcomputer U1 to pin 26 connect one to one successively, described second drives pin 8 ground connection of chip U3, and described second drives the pin 9 of chip U3 to connect power supply;
Described indoor set blower fan control module comprises tap motor control unit and PG motor control unit, the input of described tap motor control unit connects the pin 14-pin 16 of described the second driving chip U3, and the input of described PG motor control unit connects the pin 13 of described the second driving chip U3;
The input of described compressor control unit connects the pin 12 of described the first driving chip U2; The input of described four-way change-over valve control module connects the pin 11 of described the first driving chip U2; The input of described outdoor fan control module connects the pin 10 of described the first driving chip U2.
The related content of technique scheme changes and is explained as follows:
1, in such scheme, the pin 12-pin 14 of described single-chip microcomputer connects respectively three paths of LEDs circuit, and the pin 12-pin 14 of described single-chip microcomputer by connecing power supply after a light emitting diode and resistance series connection, is respectively used to compressor indicating operating status respectively.
2, in such scheme, the pin 1 of described infrared remote receiver connects the pin 2 of described single-chip microcomputer, when infrared remote receiver output is low level, receiving the extraneous infrared signal sending send single-chip microcomputer to process, or the pin 1 of described infrared remote receiver is by a switch ground connection, when switch is always closed, low level delivered to described single-chip microcomputer and process.
3,, in such scheme, the pin 15 of described single-chip microcomputer U1 passes through a resistance R 9, then amplifies and connect a buzzer B1 through one second triode Q2.
4, in such scheme, described control circuit also comprises indoor temperature collecting unit, and described indoor collecting unit has the first thermistor RMT1, and the output of described indoor temperature collecting unit connects the pin 28 of described single-chip microcomputer U1.
5, in such scheme, described control circuit also comprises indoor pipe temperature collecting unit, and described indoor pipe temperature collecting unit has the second thermistor RMT2, and the output of described indoor pipe temperature collecting unit connects the pin 27 of described single-chip microcomputer U1.
6, in such scheme, described control circuit also comprises indoor fan PG motor feedback unit, and the output of described indoor fan PG motor feedback unit connects the pin 1 of described single-chip microcomputer U1.
7, in such scheme, described control circuit also comprises an oscillating circuit, and described oscillating circuit adopts crystal oscillator X1 oscillating circuit, and the output of described oscillating circuit connects pin 7 and the pin 8 of described single-chip microcomputer U1.
8, in such scheme, described power supply processing unit comprises a bridge rectifier and a zero-detection circuit, the input of described zero-detection circuit connects the output voltage of power supply after described bridge rectifier rectification, described zero-detection circuit is by after a current-limiting resistance R current limliting, adopt again the first resistance R 1 and the first capacitor C 1 parallel filtering, circuit one end after parallel connection is through the base stage of one first triode Q1, the other end connects emitter stage the ground connection of described the first triode Q1, the colelctor electrode of described the first triode Q1 is through resistance R 2, pass through again capacitor C 2 ground connection, between described resistance R 2 and the second capacitor C 2, draw the pin 3 that one end is connected described single-chip microcomputer U1, simultaneously through the second resistance R 3 filtering and connect power supply.
The utility model principle, design and effect are as follows: the utility model is integrated in indoor fan tap Electric Machine Control and indoor fan PG Electric Machine Control in a fixed frequency air conditioner indoor controller, by a single-chip microcomputer, drives respectively the blower motor of two types.
Due to the application of technique scheme, the utlity model has following advantage:
1, because the utility model is integrated in indoor fan tap Electric Machine Control and indoor fan PG Electric Machine Control in a fixed frequency air conditioner indoor controller on the basis of existing technology, reasonable disposition hardware control circuit, maintenance personal is without going to the interior machine that checks the air-conditioning damaging, and go to maintenance without purchase two kinds of controllers simultaneously, only need to adopt this device, just the air-conditioning damaging due to air conditioning chamber's internal controller can be repaired fast.This device adopts reasonably design, and indoor fan tap Electric Machine Control and indoor fan PG Electric Machine Control are integrated in a fixed frequency air conditioner indoor controller, realizes the selective driving of blower fan tap motor and PG motor.With respect to prior art, without increasing extra too many cost, taken into account maintenance time and maintenance cost, and facilitated largely the maintenance of fixed frequency air conditioner controller.
2, because the utility model adopts rational control circuit design, rationally the drive motors of control room inner blower, has increased the reliability of controlling.
Accompanying drawing explanation
1, accompanying drawing 1 is the overall structure block diagram of embodiment 1 AC frequency conversion ac control circuit;
2, accompanying drawing 2 is the electrical block diagram of the singlechip chip of embodiment 1 central processor unit;
3, accompanying drawing 3 is the electrical block diagram of embodiment 1 power supply processing unit;
4, accompanying drawing 4 is the electrical block diagram that embodiment 1 first drives chip;
5, accompanying drawing 5 is the electrical block diagram that embodiment 1 second drives chip;
6, accompanying drawing 6 is tap motor control unit connection circuit schematic diagram in embodiment 1;
7, accompanying drawing 7 is PG motor control unit connection circuit schematic diagram in embodiment 1.
In above accompanying drawing: U1, single-chip microcomputer; U2, first drives chip; U3, second drives chip; R, current-limiting resistance; R1, the first resistance; R2, the second resistance; R3, the 3rd resistance; R6, reset resistor, R9, the 9th resistance; B1, buzzer; C6 reset capacitance; C7, the 7th electric capacity; C9, the 9th electric capacity; C10, the tenth electric capacity; X1, crystal oscillator; RMT1, the first thermistor; RMT2, the second thermistor; Q1, the first triode; Q2, the second triode; SWING, pendulum leaf; IR, infrared recipient.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment 1: referring to accompanying drawing 1-5, a kind of universal fixed frequency air conditioner control circuit, comprise central processor unit, power supply processing unit, infrared receiver, driver element, indoor set blower fan control module, compressor control unit, four-way change-over valve control module, outdoor fan control module and pendulum leaf control module, wherein
Referring to accompanying drawing 2, described central processor unit has the single-chip microcomputer U1 that a model is SH79F081AM, the pin 6 of described single-chip microcomputer U1 connects a reset circuit, pin 7 and pin 8 connect oscillating circuit, pin 27 and pin 28 connect respectively indoor temperature Acquisition Circuit and indoor pipe temperature Acquisition Circuit, connect+5v of pin 9 power supply, pin 10 ground connection.
Wherein, described reset circuit has a reset resistor R6 and a reset capacitance C6, the pin 6 of single-chip microcomputer described in a termination of described reset resistor R6, and another termination power of described reset resistor R6, simultaneously by reset capacitance C6 ground connection.
Described oscillating circuit connects pin 7 and the pin 8 of described single-chip microcomputer U1, described oscillating circuit has a crystal oscillator X1, described crystal oscillator X1 is directly added between the pin 7 and pin 8 of described single-chip microcomputer U1, and two pins of described crystal oscillator X1 connect ground capacity C9 and a C10 simultaneously.
Described control circuit also comprises indoor temperature collecting unit, and one end of described indoor temperature collecting unit connects the pin 28 of single-chip microcomputer U1, other end series connection one first thermistor RMT1; Described control circuit also comprises indoor pipe temperature collecting unit, and one end of described indoor pipe temperature collecting unit connects the pin 27 of single-chip microcomputer U1, other end series connection one second thermistor RMT2; The pin 2 of the first thermistor RMT1 is connected with the pin 1 of the second thermistor RMT2 and ground connection, between the pin 1 of the first thermistor RMT1 and the pin 2 of the second thermistor RMT2, is connected two electric capacity, ground connection between two electric capacity; Between the pin 1 of the first thermistor RMT1 and the pin 2 of the second thermistor RMT2, be also connected two resistance, ground connection between two resistance, is the public land of resistance and electric capacity simultaneously.When indoor temperature and pipe temperature change, thermistor resistance changes, thereby the signal that sends single-chip microcomputer to also changes.
The pin 15 of described single-chip microcomputer U1 passes through one the 9th resistance R 9, then amplifies and connect a buzzer B1 through one second triode Q2.
The pin 12-pin 14 of described single-chip microcomputer connects respectively three paths of LEDs circuit, and the pin 12-pin 14 of described single-chip microcomputer by connecing power supply after a light emitting diode and resistance series connection, is respectively used to compressor indicating operating status respectively.
Described infrared receiver has an infrared remote receiver IR, the pin 1 of described infrared remote receiver IR connects the pin 2 of described single-chip microcomputer U1, pin 2 ground connection of infrared remote receiver IR, the pin 3 of infrared remote receiver IR connects power supply by the tenth resistance R 10, between the pin 2 of infrared remote receiver and pin 3, by electrochemical capacitor the 7th capacitor C 7, connects.
Referring to accompanying drawing 3, described power supply processing unit comprises a bridge rectifier and a zero-detection circuit, the input of described zero-detection circuit connects the output voltage of power supply after described bridge rectifier rectification, described zero-detection circuit is by after a current-limiting resistance R current limliting, adopt again the first resistance R 1 and the first capacitor C 1 parallel filtering, circuit one end after parallel connection is through the base stage of one first triode Q1, the other end connects emitter stage the ground connection of described the first triode Q1, the colelctor electrode of described the first triode Q1 is through resistance R 2, pass through again capacitor C 2 ground connection, between described resistance R 2 and the second capacitor C 2, draw the pin 3 that one end is connected described single-chip microcomputer U1, simultaneously through the second resistance R 3 filtering and connect power supply.
Referring to accompanying drawing 4, accompanying drawing 5, described driver element has the first driving chip U2 and the second driving chip U3 that model is ULN2003A, the pin 1-pin 7 of described the first driving chip U2 is connected respectively the pin 16-pin 22 of described single-chip microcomputer U1, described first drives pin 8 ground connection of chip U2, described first drives the pin 9 of chip U2 to connect power supply, the pin 1-pin 4 of described the second driving chip U3 is connected respectively the pin 23-pin 26 of described single-chip microcomputer U1, described second drives pin 8 ground connection of chip U3, described second drives the pin 9 of chip U3 to connect power supply.
Wherein, pin 1 and connect+12v of pin 6 power supply of pendulum leaf SWING, pin 2-pin 5 connects respectively the pin 16-pin 13 of the first driving chip U2.
As shown in Figure 6 and Figure 7, described indoor set blower fan control module comprises tap motor control unit and PG motor control unit, the input of described tap motor control unit connects the pin 14-pin 16 of described the second driving chip U3, described tap motor has height, in, the wind speed of low three gears, adopt 3 Control tap motors, the output of described tap motor control unit is the interface of tap motor, wherein, the relay one end that connects high tap position motor connects the pin 16 of described the second driving chip, in connection, relay one end of gear motor connects the pin 15 of described the second driving chip, the relay one end that connects low-grade location motor connects the pin 14 of described the second driving chip.Tap motor control unit, by the coil of transfer relay, changes the speed of tap motor.The input of described PG motor control unit connects the pin 13 of described the second driving chip U3, and PG motor control unit is by regulating thyristor regulating economize on electricity motor speed, and the output of described PG motor control unit is the interface of PG motor.
The input of described compressor control unit connects the pin 12 of described the first driving chip U2; The input of described four-way change-over valve control module connects the pin 11 of described the first driving chip U2; The input of described outdoor fan control module connects the pin 10 of described the first driving chip U2.
Described control circuit also comprises indoor fan PG motor feedback unit, and the output of described indoor fan PG motor feedback unit connects the pin 1 of described single-chip microcomputer U1.Described indoor fan PG motor feedback unit divides 3 tunnels to come together in some pin that is connected to single-chip microcomputer U1 1, wherein, and first via process feedback resistance RES, then pass through capacitor C 8 ground connection; The second tunnel connect+5v power supply; Third Road is through connect+5v of resistance power supply.
More during changer controller, if the motor that blower fan adopts is tap motor, just select the interface of tap motor to be connected to the corresponding interface of controller that adopts this control circuit, when finding that the motor that blower fan adopts is PG motor, just select the interface of PG motor to connect the corresponding interface of controller that adopts this control circuit.So just facilitated largely the maintenance of fixed frequency air conditioner controller.
Above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (6)
1. a universal fixed frequency air conditioner control circuit, it is characterized in that: comprise central processor unit, power supply processing unit, infrared receiver, driver element, indoor set blower fan control module, compressor control unit, four-way change-over valve control module, outdoor fan control module and pendulum leaf control module, wherein
Described central processor unit has the single-chip microcomputer that a model is SH79F081AM (U1), the pin 6 of described single-chip microcomputer (U1) connects a reset circuit, and pin 7 and pin 8 connect oscillating circuit, and pin 27 connects indoor temperature Acquisition Circuit, pin 28 connects indoor pipe temperature Acquisition Circuit, pin 10 ground connection;
Described driver element has the first driving chip (U2) and the second driving chip (U3) that model is ULN2003A, seven pins of the described first pin 1 that drives chip (U2) to seven pins of pin 7 and the pin 16 of described single-chip microcomputer (U1) to pin 22 connect one to one successively, described first drives pin 8 ground connection of chip (U2), and described first drives the pin 9 of chip (U2) to connect power supply; Four pins of the described second pin 1 that drives chip (U3) to four pins of pin 4 and the pin 23 of described single-chip microcomputer (U1) to pin 26 connect one to one successively, described second drives pin 8 ground connection of chip (U3), and described second drives the pin 9 of chip (U3) to connect power supply;
Described indoor set blower fan control module comprises tap motor control unit and PG motor control unit, the input of described tap motor control unit connects described second and drives the pin 14 of chip (U3) to pin 16, and the input of described PG motor control unit connects the pin 13 of described the second driving chip (U3);
The input of described compressor control unit connects the pin 12 of described the first driving chip (U2); The input of described four-way change-over valve control module connects the pin 11 of described the first driving chip (U2); The input of described outdoor fan control module connects the pin 10 of described the first driving chip (U2).
2. universal fixed frequency air conditioner control circuit according to claim 1, it is characterized in that: described control circuit also comprises indoor temperature collecting unit, described indoor temperature collecting unit has the first thermistor (RMT1), and the output of described indoor temperature collecting unit connects the pin 28 of described single-chip microcomputer (U1).
3. universal fixed frequency air conditioner control circuit according to claim 1, it is characterized in that: described control circuit also comprises indoor pipe temperature collecting unit, described indoor pipe temperature collecting unit has the second thermistor (RMT2), and the output of described indoor pipe temperature collecting unit connects the pin 27 of described single-chip microcomputer (U1).
4. universal fixed frequency air conditioner control circuit according to claim 1, it is characterized in that: described control circuit also comprises indoor fan PG motor feedback unit, the output of described indoor fan PG motor feedback unit connects the pin 1 of described single-chip microcomputer (U1).
5. universal fixed frequency air conditioner control circuit according to claim 1, it is characterized in that: described control circuit also comprises an oscillating circuit, described oscillating circuit adopts crystal oscillator (X1) oscillating circuit, and described oscillating circuit is located between the pin 7 and pin 8 of described single-chip microcomputer (U1).
6. universal fixed frequency air conditioner control circuit according to claim 1, it is characterized in that: described power supply processing unit comprises a bridge rectifier and a zero-detection circuit, the input of described zero-detection circuit connects the output voltage of power supply after described bridge rectifier rectification, described zero-detection circuit is by after a current-limiting resistance (R) current limliting, adopt again the first resistance (R1) and the first electric capacity (C1) parallel filtering, circuit one end after parallel connection is connected with the base stage of one first triode (Q1), the other end connects emitter stage the ground connection of described the first triode (Q1), the colelctor electrode of described the first triode (Q1) is through resistance (R2), pass through again electric capacity (C2) ground connection, between described resistance (R2) and the second electric capacity (C2), draw the pin 3 that one end is connected described single-chip microcomputer (U1), simultaneously through (R3) filtering of the second resistance and connect power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420265186.9U CN203928278U (en) | 2014-05-22 | 2014-05-22 | Universal fixed frequency air conditioner control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420265186.9U CN203928278U (en) | 2014-05-22 | 2014-05-22 | Universal fixed frequency air conditioner control circuit |
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| CN203928278U true CN203928278U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420265186.9U Expired - Fee Related CN203928278U (en) | 2014-05-22 | 2014-05-22 | Universal fixed frequency air conditioner control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870343A (en) * | 2017-03-31 | 2017-06-20 | 四川长虹电器股份有限公司 | A kind of unitized motor drives matching process |
| CN110529969A (en) * | 2019-09-12 | 2019-12-03 | 宁波奥克斯电气股份有限公司 | A kind of fixed frequency air conditioner control method, device and air conditioner |
-
2014
- 2014-05-22 CN CN201420265186.9U patent/CN203928278U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870343A (en) * | 2017-03-31 | 2017-06-20 | 四川长虹电器股份有限公司 | A kind of unitized motor drives matching process |
| CN110529969A (en) * | 2019-09-12 | 2019-12-03 | 宁波奥克斯电气股份有限公司 | A kind of fixed frequency air conditioner control method, device and air conditioner |
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| GR01 | Patent grant | ||
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Address after: On the east side of Wujiang Long Bridge Road Development Zone in Suzhou City, Jiangsu province 215211 Patentee after: JIANGSU QUNDA INTELLIGENT TECHNOLOGY CO., LTD. Address before: Wuzhong Economic Development Zone in Suzhou City, Jiangsu province 215128 Tian River Road No. 103 Patentee before: Qunda Electronics Co., Ltd., Suzhou |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20210522 |