CN208268044U - A kind of anti-interference intelligent new-energy automotive air-conditioning compressor controller of multiplex roles - Google Patents
A kind of anti-interference intelligent new-energy automotive air-conditioning compressor controller of multiplex roles Download PDFInfo
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- CN208268044U CN208268044U CN201820498334.XU CN201820498334U CN208268044U CN 208268044 U CN208268044 U CN 208268044U CN 201820498334 U CN201820498334 U CN 201820498334U CN 208268044 U CN208268044 U CN 208268044U
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Abstract
The utility model provides a kind of anti-interference intelligent new-energy automotive air-conditioning compressor controller of multiplex roles, it further include that the power circuit of power supply is provided for foregoing circuit including single-chip microprocessor MCU and the RS485 bus interface circuit being connected with its port, CAN interface circuit, PWM output circuit, button inputting circuits and LCD display.The CAN interface circuit connection CAN interface, the PWM output circuit connect PWM output interface, and the RS485 bus interface circuit connects RS485 bus interface；Intelligent control of the utility model based on single-chip microcontroller and display screen, multiple communication modes and connection type under the conditions of offer varying environment, and the Anti-interference Design for increasing Transient Suppression Diode and common mode inductance in order circuit, is that a high-performance high-quality is anti-interference, has the intelligent controller of multichannel interface and visual display function.
Description
Technical field
The utility model relates to intelligent automobile compressor of air conditioner control technology field, in particular to a kind of multiplex roles are anti-interference
Intelligent new-energy automotive air-conditioning compressor controller.
Background technique
Currently, China is greatly developing new-energy automobile industry, new-energy automobile kernel component is especially increased
Innovation Input dynamics.Make every effort to create high-precision product to be national automotive strategy.Market is to more next with air-conditioned car
It is more welcome, it is higher and higher to chasing for the refrigeration effect of new-energy automotive air-conditioning.And the refrigeration system of air-conditioning is then by air-conditioning pressure
Contracting machine and electric-control system form.The quality of compressor of air conditioner operation, it is not only related with compressor mechanical performance itself, more and electrically
It controls related.Therefore, how preferably to control compressor and compressor performance optimum performance is made just to become key.
Compressor of air conditioner is after assembling finishes, it is necessary to by comprehensive performance detection and trial operation, reach refrigeration effect simultaneously
And consumption power control, within zone of reasonableness, the qualified entrucking of ability later uses.Being tested for the property to compressor will be by
Compressor electronic control controller realizes, the quality and performance of compressor controller directly affects the performance test of compressor and make
With, and controller and environmental factor have direct relation.
The factor for influencing compressor controller performance and using:
1. the control of compressor is usually to be realized by CAN communication.But at present due to the factory of China's production compressor
Family is numerous, and communication modes would also vary from, some producers can use CAN communication mode, some producers may be controlled with PWM
Mode.There are also in test compression machine performance, needs to be communicated with computer, use RS485 communication modes.It is more this requires collecting
Kind communication function is in the controller of one.
2. to carry out start-up and shut-down control when testing compressor and revolving speed be configured, it is also necessary to understand compressor
Status information when operation, and when being out of order, the information such as real-time display fault code, this is with regard to inevitable requirement visualization of information
Change.
3. the use environment of compressor is generally poor, it is desirable that it cannot all be influenced under various bad weathers by the external world, this
Very high requirement just is proposed to controller.Common controller also may be used under lab in the case where disturbed condition very little
It is able to achieve control, communication is also possible to normal.Once but inclement condition, electromagnetic interference more strongly, connect CAN communication line, just
Can not normal communication, or even the case where crash.And pull out CAN line and restore normal, here it is typical CAN signal by
Electromagnetic interference.
Therefore, design that a high-performance high-quality is anti-interference, and the controller of multifunctional visible just seems very necessary.
Summary of the invention
In order to solve the problems, such as described in background technique, the utility model provides a kind of anti-interference intelligent new energy of multiplex roles
Automobile air conditioner compressor controller, the intelligent control based on single-chip microcontroller and display screen provide a variety of communications under the conditions of varying environment
Mode and connection type, and in order circuit increase Transient Suppression Diode and common mode inductance Anti-interference Design, be one
Money high-performance high-quality is anti-interference, has the intelligent controller of multichannel interface and visual display function.
In order to achieve the above object, the utility model is implemented with the following technical solutions:
A kind of anti-interference intelligent new-energy automotive air-conditioning compressor controller of multiplex roles, including single-chip microprocessor MCU and and its
RS485 bus interface circuit, CAN interface circuit, PWM output circuit, button inputting circuits and the LCD that port is connected are aobvious
Display screen further includes that the power circuit of power supply is provided for foregoing circuit.
The CAN interface circuit connection CAN interface, the PWM output circuit connection PWM output connect
Mouthful, the RS485 bus interface circuit connects RS485 bus interface；The CAN interface or PWM output
Interface is connected with the outside port of automobile air conditioner compressor, controls automobile air conditioner compressor；The RS485 bus
Interface is connected to host computer.
The CAN interface circuit connection connects between single-chip microprocessor MCU port and CAN interface, including successively
The first light-coupled isolation chip, CAN interface chip, the first thermistor or the first PPTC fuse that connect, the suppression of the first transient state
Diode, the first lightning protection diode and the first common mode inductance processed.
The RS485 bus interface circuit is connected between single-chip microprocessor MCU port and RS485 bus interface, including according to
Second light-coupled isolation chip of secondary connection, RS485 Bus Interface Chip, the second thermistor or the 2nd PPTC fuse, second
Transient Suppression Diode, the second lightning protection diode and the second common mode inductance.
The PWM output circuit is the third light-coupled isolation being connected between single-chip microprocessor MCU port and PWM output interface
Chip TLP521.
The power circuit includes the magnetic bead for being connected on power supply output end of pressure-stabilizing, further includes being connected in parallel on power supply pressure stabilizing output
The varistor and fast recovery diode at end；The magnetic bead is encapsulation 1206, and the fast recovery diode is envelope
Fill D0-201AD.
The button inputting circuits include the start key being connected with single-chip microprocessor MCU port, stop key, increasing key, subtract
Few key and mode key.
Compared with prior art, the utility model has the beneficial effects that
1, the utility model is based on Intelligent Single-Chip Based control, the intelligent controller with LCD display function, and at the same time matching
There are RS485 interface, CAN interface and PWM output interface, CAN interface and PWM output interface are compressor of air conditioner
The two separate modes of control interface provided, meets the needs of different compressors interface；RS485 interface is met using upper
Machine carries out the needs of compression machine testing and compressor control.
2, the utility model increases Transient Suppression Diode and common mode in RS485 order circuit and CAN bus circuit
The Anti-interference Design of inductance connects transient voltage suppressor (TVS) removal high pressure interference；After TVS diode, common mode electricity is connect
Sense removes the common mode interference of CAN or RS485；There are also lightning protection discharge diodes to inhibit lightning surge.
3, the power supply output both ends in power circuit are added varistor and carry out voltage clamping protection, and are furnished with magnetic bead and two
Pole pipe forms filtering and anti-reverse protection.
Detailed description of the invention
Fig. 1 is the integrated circuit structural block diagram of the utility model；
Fig. 2 is CAN interface circuit structure block diagram；
Fig. 3 is RS485 bus interface circuit structural block diagram；
Fig. 4 is that circuit diagram is embodied in single-chip microprocessor MCU；
Fig. 5 is that circuit diagram is embodied in CAN interface circuit；
Fig. 6 is that circuit diagram is embodied in RS485 bus interface circuit；
Fig. 7 is that circuit diagram is embodied in PWM output circuit；
Fig. 8 is that circuit diagram is embodied in power circuit；
Fig. 9 is that circuit diagram is embodied in button inputting circuits；
Figure 10 is that circuit diagram is embodied in LCD display.
Specific embodiment
Specific embodiment provided by the utility model is described in detail below in conjunction with attached drawing.
As shown in Figure 1, a kind of anti-interference intelligent new-energy automotive air-conditioning compressor controller of multiplex roles, including single-chip microcontroller
MCU and the RS485 bus interface circuit being connected with its port, CAN interface circuit, PWM output circuit, key-press input electricity
Road and LCD display further include that the power circuit of power supply is provided for foregoing circuit.
The CAN interface circuit connection CAN interface, the PWM output circuit connection PWM output connect
Mouthful, the RS485 bus interface circuit connects RS485 bus interface；The CAN interface or PWM output
Interface is connected with the outside port of automobile air conditioner compressor, controls automobile air conditioner compressor；The RS485 bus
Interface is connected to host computer.
As shown in Fig. 2,5, the CAN interface circuit connection in single-chip microprocessor MCU port and CAN interface it
Between, including sequentially connected first light-coupled isolation chip U19, U23, CAN interface chip U21, the first thermistor or
One PPTC fuse RC11, RC16, the first Transient Suppression Diode U20, the first lightning protection diode GDT1 and the first common mode inductance
U22。
As shown in Fig. 3,6, the RS485 bus interface circuit is connected to single-chip microprocessor MCU port and RS485 bus interface
Between, including sequentially connected second light-coupled isolation chip U24, U25, U30, RS485 Bus Interface Chip U27, the second temperature-sensitive
Resistance or the 2nd PPTC fuse RS12, RS16, the second Transient Suppression Diode U26, the second lightning protection diode and GDT2 second
Common mode inductance U28.
See Fig. 4, is the specific implementation circuit diagram of single-chip microprocessor MCU, the single-chip microcontroller model that the embodiment of Fig. 4 uses
LPC11C12/4-FBD48。
See Fig. 5, the CAN interface circuit diagram provided for specific embodiment.See Fig. 6, is provided for specific embodiment
RS485 bus interface circuit figure.In Fig. 5 and Fig. 6, RC11, RC16, RS12, RS16 are the thermistor of overcurrent protection, play overcurrent
Protective effect can also use PPTC fuse.In addition, other than Transient Suppression Diode, lightning protection diode and common mode inductance,
Embodiment is also provided with filter capacitor in figure: CRS13, CRS16 in CC11, CC12 and Fig. 6 in Fig. 5 are filter capacitor, can
To filter out High-frequency Interference.GDT1 and GDT2 is lightning protection diode, model are as follows: B3D090L.
As shown in fig. 7, the PWM output circuit is be connected between single-chip microprocessor MCU port and PWM output interface
Three light-coupled isolation chip TLP521.
As shown in figure 8, the power circuit includes the magnetic bead LP3 for being connected on power supply output end of pressure-stabilizing, it further include parallel connection
In the varistor RP5 and fast recovery diode DP4, DP5 of power supply output end of pressure-stabilizing；The magnetic bead LP3 is encapsulation
1206, the varistor RP5 are 14D471K type, and described fast recovery diode DP4, DP5 are encapsulation D0-201AD.
As shown in figure 9, the button inputting circuits include the start key being connected with single-chip microprocessor MCU port, stop key,
Increasing key, reducing key and mode key.
As shown in Figure 10, the LCD display of the present embodiment selects LCD12864 screen.
The utility model solves the electromagnetic interference problem occurred when CAN communication and RS485 communication by the following technical programs:
(1) Phototube Coupling is carried out to CAN signal with photoelectric coupling, realizes power supply and isolated from power, ground is isolated with ground.Signal
Between on pcb board distance as far as possible from remote；
(2) it is connect transient voltage suppressor (TVS) in CAN bus chip output, removal high pressure interference；
(3) it is followed by common mode inductance in TVS diode, removes the common mode interference of CAN or RS485；
(4) it is connected to lightning protection diode at bus interface, inhibits lightning surge.
The utility model also provides multiple interfaces side under the conditions of following varying environment in addition to the interface mode of CAN bus
Formula:
(1) increase RS485 communication modes, it, not only will be to revolving speed, voltage, electricity when carrying out performance detection to compressor
The information such as stream are tested, it is also necessary to be carried out all-round property testing to it, be carried out all-round property testing to compressor and just have to
It puts it into combination property test desk, the parameters such as test refrigerating capacity, exhaust suction pressure, exhaust suction temperature, coefficient of refrigerating performance,
These data are shown in the industrial personal computer display of combination property test desk, but industrial personal computer does not have CAN interface, it is common that
RS232/RS485 interface.Therefore, RS485 interface is increased, compressor data are passed in industrial personal computer and are shown.Not only realize
Compressor and comprehensive performance test bed communication can also carry out the control of revolving speed and starting stopping by serial ports tool to compressor
System；
(2) increase PWM control mode, for compressor of air conditioner, what is generallyd use is CAN communication mode to control compression
Machine, or compressor is tested for the property.In addition, be not there are also the control of compressor of air conditioner realized by communicating, and
It is to change duty using PWM control mode when PWM cycle realizes the control to compressor.Therefore, controller is increased
PWM control changes control of the duty ratio realization to compressor rotary speed by button.
The utility model realizes intelligent control method and real-time monitoring.Using LCD liquid crystal display (band character library), display setting letter
Breath and status feedback information, and can realize that screen menu type selects by key.It can judge automatically whether communication connects, and can
Show the current state received and fault code and fault message.By fault code comprehensive descision can be carried out to compressor.
Above embodiments are implemented under premised on technical solutions of the utility model, give detailed embodiment
With specific operating process, but the protection scope of the utility model is not limited to the above embodiments.Side used in above-described embodiment
Method is conventional method unless otherwise instructed.
Claims (6)
1. a kind of anti-interference intelligent new-energy automotive air-conditioning compressor controller of multiplex roles, which is characterized in that including single-chip microcontroller
MCU and the RS485 bus interface circuit being connected with its port, CAN interface circuit, PWM output circuit, key-press input electricity
Road and LCD display further include that the power circuit of power supply is provided for foregoing circuit；
The CAN interface circuit connection CAN interface, the PWM output circuit connect PWM output interface, institute
The RS485 bus interface circuit connection RS485 bus interface stated；The CAN interface or the PWM output interface with
The outside port of automobile air conditioner compressor is connected, and controls automobile air conditioner compressor；The RS485 bus interface connects
It is connected to host computer.
2. the anti-interference intelligent new-energy automotive air-conditioning compressor controller of a kind of multiplex roles according to claim 1,
It is characterized in that, the CAN interface circuit connection connects between single-chip microprocessor MCU port and CAN interface, including successively
The first light-coupled isolation chip, CAN interface chip, the first thermistor or the first PPTC fuse that connect, the suppression of the first transient state
Diode, the first lightning protection diode and the first common mode inductance processed.
3. the anti-interference intelligent new-energy automotive air-conditioning compressor controller of a kind of multiplex roles according to claim 1,
It being characterized in that, the RS485 bus interface circuit is connected between single-chip microprocessor MCU port and RS485 bus interface, including according to
Second light-coupled isolation chip of secondary connection, RS485 Bus Interface Chip, the second thermistor or the 2nd PPTC fuse, second
Transient Suppression Diode, the second lightning protection diode and the second common mode inductance.
4. the anti-interference intelligent new-energy automotive air-conditioning compressor controller of a kind of multiplex roles according to claim 1,
Be characterized in that, the PWM output circuit be the third optocoupler that is connected between single-chip microprocessor MCU port and PWM output interface every
Off-chip piece TLP521.
5. the anti-interference intelligent new-energy automotive air-conditioning compressor controller of a kind of multiplex roles according to claim 1,
It is characterized in that, the power circuit includes the magnetic bead for being connected on power supply output end of pressure-stabilizing, further includes that be connected in parallel on power supply pressure stabilizing defeated
The varistor and fast recovery diode of outlet；The magnetic bead is encapsulation 1206, and the fast recovery diode is
Encapsulate D0-201AD.
6. the anti-interference intelligent new-energy automotive air-conditioning compressor controller of a kind of multiplex roles according to claim 1,
It is characterized in that, the button inputting circuits include the start key being connected with single-chip microprocessor MCU port, stop key, increasing key, subtract
Few key and mode key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820498334.XU CN208268044U (en) | 2018-04-09 | 2018-04-09 | A kind of anti-interference intelligent new-energy automotive air-conditioning compressor controller of multiplex roles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820498334.XU CN208268044U (en) | 2018-04-09 | 2018-04-09 | A kind of anti-interference intelligent new-energy automotive air-conditioning compressor controller of multiplex roles |
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| Publication Number | Publication Date |
|---|---|
| CN208268044U true CN208268044U (en) | 2018-12-21 |
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| CN201820498334.XU Active CN208268044U (en) | 2018-04-09 | 2018-04-09 | A kind of anti-interference intelligent new-energy automotive air-conditioning compressor controller of multiplex roles |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095712A (en) * | 2020-08-19 | 2020-12-18 | 吉林建筑大学 | Water taking system for condensed air |
-
2018
- 2018-04-09 CN CN201820498334.XU patent/CN208268044U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095712A (en) * | 2020-08-19 | 2020-12-18 | 吉林建筑大学 | Water taking system for condensed air |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190723 Address after: No. 266 Yueling Road, Anshan High-tech Zone, Liaoning Province, 114000 Patentee after: Anshan Xinbei Seiko Co., Ltd. Address before: 114001 No.3 Dahe Street, Tiexi District, Anshan City, Liaoning Province Patentee before: ANSHAN XINCI ELECTRONIC CO., LTD. |
|
| TR01 | Transfer of patent right |