CN202719714U - Air condition controller of automatic type engineering van - Google Patents
Air condition controller of automatic type engineering van Download PDFInfo
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- CN202719714U CN202719714U CN 201220388836 CN201220388836U CN202719714U CN 202719714 U CN202719714 U CN 202719714U CN 201220388836 CN201220388836 CN 201220388836 CN 201220388836 U CN201220388836 U CN 201220388836U CN 202719714 U CN202719714 U CN 202719714U
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Abstract
The utility model discloses an air condition controller of an automatic type engineering van and relates to the technical field of automotive air conditioning control. The controller comprises a signal acquisition module, wherein the signal acquisition module is composed of a return air temperature sensor, a defrost sensor and a pressure switch. The signal acquisition module sends collected signals to a signal preprocessing circuit module, and the signal preprocessing circuit module processes the signals collected by the signal acquisition module and then sends the signals to a central processing unit. The central processing unit is respectively connected with a liquid crystal display module, a key module and a drive circuit module, wherein the drive circuit module is used for controlling a water valve, a compressor relay, a model motor and a speed control module. The air condition controller of the automatic type engineering van has the advantages of achieving automatic temperature control, integration of heating and cooling ventilation, wind amount automatic control, good anti-interference performance, and excellent water resistance, dust prevention and salt fog resistance; containing under-voltage and over-voltage protection, and input and output short circuit protection; and real-time displaying current working conditions and fault code information.
Description
Technical field
The utility model relates to air conditioning for automobiles control technology field, and specifically a kind of self-action engineering van air-conditioning controller is applicable to the engineering truck air-conditioning system.
Background technology
At present, engineering van air-conditioning controller is of a great variety, and knob analog controller and manual electronic formula air-conditioner controller device occupy the staple market.The knob analog controller is without under-voltage over-voltage protecting function, and antijamming capability is relatively poor, and without good man-machine display interface.Although the engineering van air-conditioning controller of manual electronic formula has remedied the deficiency of knob, and is more intelligent, can't realize automatic control, not hommization, display interface water proof and dust proof performance not good and product is bad.Because the engineering truck work under bad environment turns round and look at the anti-salt fog of product preventing dust water-based is had relatively high expectations.
Therefore; this area is needed a kind of have automatic control function and good, the superior anti-salt fog performance of dustproof and waterproof of anti-interference badly; contain under-voltage overvoltage protection, compressor time-delay output protection, in real time display setting temperature, changes in temperature ventilate integrated, present mode duty and fault, security alarm and the air-conditioner controller of checking at any time each road sensor status information.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the utility model provides a kind of self-action engineering van air-conditioning controller, realizes automatically controlling each execution unit, can realize temperature automatically controlled, automatic control mode motor under automatic mode, automatically controls air quantity and angle.
The utility model is realized with following technical scheme: a kind of self-action engineering van air-conditioning controller comprises
Signal acquisition module is used for collecting temperature, pressure signal;
The signal pre-processing circuit module, its input connects the output of described signal acquisition module, with the signal that receives described signal acquisition module collection and process;
Central processing unit, its input connects the output of described signal pre-processing module, receiving treated collection signal, and processes through signal and to judge and give drive circuit module, realizes automatically control and manually control;
Drive circuit module connects described central processing unit, thereby each execution unit is controlled in the instruction of carrying out central processing unit;
LCD MODULE, it connects described central processing unit, is used for showing each duty;
Key-press module connects respectively central processing unit, signal pre-processing circuit module and key backlight module, for it provides man-machine control interface;
Power module for described central processing unit, key-press module, signal pre-processing circuit module, LCD MODULE, drive circuit module power supply, has power protecting circuit.
It further is: described power protecting circuit comprises that one contains the high power metal-oxide-semiconductor of overcurrent-overvoltage low-voltage short-circuiting protection, and the output of high power metal-oxide-semiconductor is connected with protection diode and current-limiting resistance.
Described drive circuit module comprises the driving chip U5 for drive motors, is connected to the output protection circuit between central processing unit and each execution unit.
Described output protection circuit comprises that one contains the high-low side driving tube of the overheated short-circuit protection of overcurrent-overvoltage, and the output of high-low side driving tube connects two counnter attack misconnection, the protection diode that the relay reversing the current of anti-external control impacts.
Operation principle: hardware is finished each input signal and is processed, and output drives function, and the taking into account system interference free performance, input and output short-circuit protection performance.
The software aspect is finished input signal data and is processed, and output signal realizes the automatic control logic judgement of control, liquid crystal display Graphics Processing, the functions such as system's under-voltage overvoltage protection processing.
The beneficial effects of the utility model are: realize automatically controlling each execution unit, can realize temperature automatically controlled, automatic control mode motor under automatic mode, automatically control air quantity and angle; Changes in temperature ventilate integrated, Energy Saving Control.Have good interference free performance, good dustproof and waterproof is prevented the salt fog performance, contains the under-voltage overvoltage protection, the input and output short-circuit protection, and the liquid crystal display Presentation Function is perfect, shows indoor temperature in good time, simultaneously image indication work at present state and DTC information.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described further
Fig. 1 is system principle diagram of the present utility model;
Fig. 2 is wiring board schematic diagram of the present utility model.
The specific embodiment
As shown in Figure 1, a kind of self-action engineering van air-conditioning controller forms signal acquisition module by temperature sensor, defrosting sensor and pressure switch; Signal acquisition module connects a signal pre-processing circuit module, and signal pre-processing circuit is sent into central processing unit after the signal of signal acquisition module collection is processed; Central processing unit connects respectively LCD MODULE, key-press module and drive circuit module; Drive circuit module is connecting with water valve motor, compressor relay, pattern motor and speed adjusting module respectively, for the anglec of rotation and the alignment circuit of the angle of controlling water valve, compressor relay, pattern motor.Power module provides power supply and holding circuit for described central processing unit, key-press module, signal pre-processing circuit module, LCD MODULE, drive circuit module.
As shown in Figure 2, central processing unit: adopt single-chip microcomputer U1 as main control chip, C1 is connected resetting pin with R9, reserves programming mouth J3.
Power module comprises a diode D32, metal-oxide-semiconductor Q14, circuit of three-terminal voltage-stabilizing integrated and voltage-stabiliser tube DW6; The negative pole of diode D32 is connected with the D utmost point of metal-oxide-semiconductor Q14, and the S utmost point of metal-oxide-semiconductor connects the input of circuit of three-terminal voltage-stabilizing integrated, and the G utmost point of metal-oxide-semiconductor is connected with the earth terminal of circuit of three-terminal voltage-stabilizing integrated by voltage-stabiliser tube DW6.The power supply access by diode D32, meets metal-oxide-semiconductor Q14 and voltage-stabiliser tube DW6 and consists of switching power circuit, prevents outside glitch waveform, and metal-oxide-semiconductor S level meets regulator block U3, U4; U3 regulator block output is stablized 5V voltage for central processing unit provides, and U4 regulator block output provides 12V voltage for drive circuit module.U2 is that liquid crystal display drives chip, and central processing unit connects U2 by the SPI communication port.Described power protecting circuit comprises that one contains the high power metal-oxide-semiconductor of overcurrent-overvoltage low-voltage short-circuiting protection, and the output of high power metal-oxide-semiconductor is connected with protection diode and current-limiting resistance.
Drive circuit module comprises the driving chip U5 for drive motors, is connected to the output protection circuit between central processing unit and the speed adjusting module; Be connected to the output protection circuit between central processing unit and the compressor relay; Be connected to the output protection circuit between central processing unit and the water valve motor; Be connected to the output protection circuit between central processing unit and the defrosting motor.Described output protection circuit comprises that one contains the high-low side driving tube of the overheated short-circuit protection of overcurrent-overvoltage, and the output of high-low side driving tube connects two protection diodes anti-reverse, that the relay reversing the current of anti-external control impacts.
Key-press module adopts the scan-type button, draws on the 10K resistance, and the voltage stabilizing of 5V Zener diode, I/O mouth of keyed jointing central processing unit is pressed on every road, and totally 8 the tunnel.
Key backlight module adopts discrete, and each key backlight module connects respectively the I/O mouth of middle processor to 2k being arranged, 3.3k, 5.k, triode, diode, 4148 voltage-stabiliser tubes, the key backlight module unit that the blue-green patch light-emitting diode forms.By the liquid crystal display displays temperature, mode state and fault message.
The liquid crystal display display module is made of blue-green backlight and control circuit, has electrostatic-proof function.
The signal pre-processing circuit module adopts the RC-pi type filter.Interior temperature sensor and defrosting sensor are by drawing on the 5.1-1% resistance, and 104 electric capacity and 2k resistance carry out filtering, connect central processing unit AD mouth.Power supply voltage signal, backlight signal and pressure switch signal: by 20K-% and 3.6K-% dividing potential drop, the voltage stabilizing of 5V voltage-stabiliser tube, 104 electric capacity and the filtering of 2k resistance π type, order sheet AD mouth.
The sheath linkage unit: complete machine with 36 core sheath J4 as with the interface of whole-vehicle air-conditioner system docking.
Automatic function is achieved as follows: system adjusts the duties such as blower air quantity, AC duty, blowing pattern and inside/outside air cock automatically according to set temperature value and vehicle interior temperature signal, simultaneously display working condition on the display screen of LCD MODULE.
Compressor cuts out when design temperature is spent greater than vehicle interior temperature 1.5, and character extinguishes; Compressor was opened when design temperature was spent less than vehicle interior temperature 1.5, and character shows; Vehicle interior temperature-1.5 ℃＜design temperature＜vehicle interior temperature+1.5 ℃ keep laststate.
Vehicle interior temperature+1.5 ℃≤design temperature＜vehicle interior temperature+5 ℃, water valve is half-open; Vehicle interior temperature+5 ℃≤design temperature, the water valve standard-sized sheet; Design temperature≤vehicle interior temperature-1.5 ℃, the water valve complete shut-down; Vehicle interior temperature-1.5 ℃＜design temperature＜vehicle interior temperature+1.5 ℃, the water valve aperture keeps laststate.
When design temperature and the indoor temperature temperature difference were 0 ℃, air quantity was 3 grades; When the temperature difference was 1--2 ℃, air quantity was 4 grades; When the temperature difference was 3--4 ℃, air quantity was 5 grades; When the temperature difference was 〉=5 ℃, air quantity was 6 grades.
When indoor temperature during at 23 ℃, the blow head pattern; Indoor temperature is blown back of the body pattern at 23 ℃-27 ℃, and indoor temperature is blown the pin pattern at 27 ℃-32 ℃, is lower than 18 ℃ or be higher than 32 ℃ and blow the pin pattern.
When indoor temperature is being lower than 23 ℃, interior circulation, indoor temperature is being higher than 27 ℃, outer circulation, indoor temperature keeps laststate between 23 degree and 27 degree the time; Under the condition that satisfies AUTO pattern and interior circulation shape pattern, interior circulating continuancing time surpasses 15 minutes, will automatically switch to outer circulation mode work 1 minute, and then switch to inner loop mode, thus circulation.
The utility model can be achieved as follows function:
(1) air-conditioning control: temperature is controlled automatically, air quantity control, the automatic control of drive manner, the control of ventilation volume etc.
(2) Energy Saving Control and three anti-: the i.e. Optimal Control of the control of compressor operation operating mode, ventilation volume and switch with the ventilation of temperature culture, change the control of economical operation over to, automatically cut off the control of compressor power etc. according to the car indoor and outdoor temperature, superior water proof and dust proof is prevented salt fog.
(3) fault, security alarm: the fault of lack of refrigerant warning, the too high or too low warning of refrigerant pressure, the various control devices of supply voltage fault is judged warning; and by showing DTC; and buzzer warning, until fault is got rid of, can also automatically change this system over to protection system simultaneously.As overtension appears, this system will cut off load power source automatically.Air-conditioning system breaks down, and central processing unit stores the form of failure code, and easily repair at the position of energy indication fault when needing repairing.
Claims (4)
1. a self-action engineering van air-conditioning controller is characterized in that: comprise
Signal acquisition module is used for collecting temperature, pressure signal;
The signal pre-processing circuit module, its input connects the output of described signal acquisition module, with the signal that receives described signal acquisition module collection and process;
Central processing unit, its input connects the output of described signal pre-processing module, receiving treated collection signal, and processes through signal and to judge and give drive circuit module, realizes automatically control and manually control;
Drive circuit module connects described central processing unit, thereby each execution unit is controlled in the instruction of carrying out central processing unit;
LCD MODULE, it connects described central processing unit, is used for showing each duty;
Key-press module connects respectively central processing unit, signal pre-processing circuit module and key backlight module, for it provides man-machine control interface;
Power module for described central processing unit, key-press module, signal pre-processing circuit module, LCD MODULE, drive circuit module power supply, has power protecting circuit.
2. a kind of self-action engineering van air-conditioning controller according to claim 1; it is characterized in that: described power protecting circuit comprises that one contains the high power metal-oxide-semiconductor of overcurrent-overvoltage low-voltage short-circuiting protection, and the output of high power metal-oxide-semiconductor is connected with protection diode and current-limiting resistance.
3. a kind of self-action engineering van air-conditioning controller according to claim 1, it is characterized in that: described drive circuit module comprises the driving chip U5 for drive motors, is connected to the output protection circuit between central processing unit and each execution unit.
4. a kind of self-action engineering van air-conditioning controller according to claim 3; it is characterized in that: described output protection circuit comprises that one contains the high-low side driving tube of the overheated short-circuit protection of overcurrent-overvoltage; the output of high-low side driving tube connects two counnter attack misconnection, the protection diode that the relay reversing the current of anti-external control impacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220388836 CN202719714U (en) | 2012-08-07 | 2012-08-07 | Air condition controller of automatic type engineering van |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220388836 CN202719714U (en) | 2012-08-07 | 2012-08-07 | Air condition controller of automatic type engineering van |
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| Publication Number | Publication Date |
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| CN202719714U true CN202719714U (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220388836 Expired - Lifetime CN202719714U (en) | 2012-08-07 | 2012-08-07 | Air condition controller of automatic type engineering van |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374009A (en) * | 2014-11-25 | 2015-02-25 | 广东鼎立汽车空调有限公司 | Integrated direct current air conditioner system for vehicles and control system thereof |
| CN105182233A (en) * | 2015-08-17 | 2015-12-23 | 安徽江淮松芝空调有限公司 | Automobile air conditioning assembly motor detection system |
| CN105196833A (en) * | 2015-10-21 | 2015-12-30 | 惠州华阳通用电子有限公司 | Method and device for controlling vehicle-mounted energy-saving automatic air conditioner |
| CN114312626A (en) * | 2022-01-17 | 2022-04-12 | 雷沃工程机械集团有限公司 | Power management method and module for engineering vehicle |
-
2012
- 2012-08-07 CN CN 201220388836 patent/CN202719714U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374009A (en) * | 2014-11-25 | 2015-02-25 | 广东鼎立汽车空调有限公司 | Integrated direct current air conditioner system for vehicles and control system thereof |
| CN105182233A (en) * | 2015-08-17 | 2015-12-23 | 安徽江淮松芝空调有限公司 | Automobile air conditioning assembly motor detection system |
| CN105182233B (en) * | 2015-08-17 | 2019-01-18 | 安徽江淮松芝空调有限公司 | Air conditioning for automobiles assembly motor detection system |
| CN105196833A (en) * | 2015-10-21 | 2015-12-30 | 惠州华阳通用电子有限公司 | Method and device for controlling vehicle-mounted energy-saving automatic air conditioner |
| CN114312626A (en) * | 2022-01-17 | 2022-04-12 | 雷沃工程机械集团有限公司 | Power management method and module for engineering vehicle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130206 |