CN203250159U - A wired controller circuit and an air conditioner circuit - Google Patents
A wired controller circuit and an air conditioner circuit Download PDFInfo
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- CN203250159U CN203250159U CN 201320285352 CN201320285352U CN203250159U CN 203250159 U CN203250159 U CN 203250159U CN 201320285352 CN201320285352 CN 201320285352 CN 201320285352 U CN201320285352 U CN 201320285352U CN 203250159 U CN203250159 U CN 203250159U
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Abstract
The utility model discloses a wired controller circuit and an air conditioner circuit. The wired controller device circuit comprises a master chip and a communication circuit connected between a master control board and the master chip. The communication circuit is a current loop communication circuit. The master chip is connected with a display screen via a display screen driving chip. The air conditioner circuit comprises a master control board and a wired controller circuit. The wired controller circuit comprises a master chip. The master control board is connected with the master chip via the current loop communication circuit. The master chip is connected with the display screen via the display screen driving chip. The wired controller circuit has advantages of high communication precision, good anti-interference performance, and multiple operating functions.
Description
Technical field
The utility model belongs to the Communication Control technical field, specifically, relates to a kind of line control machine circuit and adopts the air conditioner circuit of this line control machine circuit.
Background technology
For can be user-friendly, realize man-machine exchange, use line control machine control to become a kind of trend, line control machine has been used widely in technical fields such as air-conditioning, water machine, water heaters at present, along with the development of air-conditioning technical, embedded air-cooled ducted air conditioner and Embedded ceiling machine also use line control machine to control more and more.Present more use 485 communication modes of existing line control machine and master control borad communication, its data-signal transmission is affected easily from 485 interfaces to load, and the signal transmission is unstable; In addition, present line control machine screen resolution is low, and display effect is bad, and displaying contents is single, and the user can't intuitively check the duty of current controlled machine, and the control number of keys is few, cause the control function of line control machine few, user's use is extremely restricted.
Based on this, how to invent a kind of line control machine circuit, can improve the stability of line control machine and master control borad communication signal transmission, and the function that increases line control machine, bring convenience to the users, be the problem that the utility model mainly solves.
Summary of the invention
The utility model transmits unsettled problem in order to solve existing line control machine circuit signal, and a kind of line control machine circuit is provided, and adopts electric current loop communication modes and master control borad communication, and stable signal transmission is reliable.
In order to solve the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of line control machine circuit comprises master chip, is connected to the communicating circuit between master control borad and the described master chip, and described communicating circuit is current-loop communication circuit, and described master chip is connected with display screen by display screen drive chip.
Further, described current-loop communication circuit connects master control borad by four routes, wherein two-way connects respectively 12V direct supply and the power supply ground of master control borad, two-way is data transfer terminal in addition, wherein a circuit-switched data transmission terminal connects the input end of the current loop circuit that is comprised of a NPN triode, the output terminal of this current loop circuit connects the data receiver terminal of master chip, an other circuit-switched data transmission terminal connects the output terminal of the current loop circuit that is comprised of the 2nd NPN triode, and the input end of this current loop circuit connects data sending terminal of master chip.
Further again, described master chip also is connected with hummer by buzzer circuit.
Further again, described master chip also is connected with press key lamp by the press key lamp circuit.
Further, described master chip also is connected with temperature sensor by temperature sensor circuit.
Further, also comprise voltage conversion circuit, the input end of described voltage conversion circuit connects 12V dc power output end of current-loop communication circuit, the output terminal output 5V DC voltage of described voltage conversion circuit.
Preferably, described display screen is LCDs, and described display screen drive chip is that LCDs drives chip.
Preferably, described master chip also is connected with the remote controller signal receiving circuit.
Based on above-mentioned a kind of line control machine circuit, the utility model provides a kind of air conditioner circuit simultaneously, comprise master control borad and line control machine circuit, described line control machine circuit comprises master chip, described master control borad is connected by current-loop communication circuit with described master chip, and described master chip is connected with display screen by display screen drive chip.
Further, described current-loop communication circuit connects master control borad by four routes, wherein two-way connects respectively 12V direct supply and the power supply ground of master control borad, two-way is respectively data sending terminal and data receiver in addition, wherein data sending terminal connects the input end of the current loop circuit that is comprised of a NPN triode, the output terminal of this current loop circuit connects the data receiver terminal of master chip, data receiver connects the output terminal of the current loop circuit that is comprised of the 2nd NPN triode, the input end of this current loop circuit connects data sending terminal of master chip, the input end of the current loop circuit that the data sending terminal sub-connection of described master control borad is comprised of the 3rd NPN triode, the output terminal of this current loop circuit connects the data sending terminal of current-loop communication circuit, the output terminal of the current loop circuit that the data receiver sub-connection of described master control borad is comprised of the 4th NPN triode, the input end of this current loop circuit connects the data receiver of current-loop communication circuit.
Compared with prior art, advantage of the present utility model and good effect are: line control machine circuit of the present utility model, 1, adopt communication modes and the master control borad communication of electric current loop, make the higher more accurate rapider and automatically control of realization of control accuracy, interference free performance is better; 2, backlight is directly from the master control borad power taking, and when the operation line control machine, backlight lightening when not operating for a long time, is backlightly extinguished energy-conservationly, and working current is stable during backlight lightening, and is dark when bright in the time of can be because of the fluctuation of external voltage; 3, have crystal display, with LCDs, show the current state of operation of air conditioner on the line control machine, be convenient to the information that the user understands current operation; When air-conditioning broke down, line control machine showed failure code, was convenient to maintenance; 4, have the remote control reception function, available telepilot operates line control machine, and line control machine can receive the information that telepilot is sent, and is transmitted to air-conditioning internal machine; 5, have ring temperature detector brake, on the line control machine with temperature sensor, real-time testing environment temperature, and the temperature information air-conditioning internal machine; 6, have the hummer response function, when every operation one-touch, hummer all can be made response, and is effective with this button operation of prompting user.
After reading by reference to the accompanying drawings the detailed description of the utility model embodiment, other characteristics of the present utility model and advantage will become clearer.
Description of drawings
Fig. 1 is a kind of embodiment circuit block diagram of the air conditioner circuit that proposes of the utility model;
Fig. 2 is a kind of embodiment circuit theory diagrams of current-loop communication circuit in the air conditioner circuit that proposes of the utility model;
Fig. 3 is the circuit theory diagrams of current-loop communication circuit in the air conditioner circuit that proposes of the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in more detail.
Embodiment one, present embodiment will be elaborated as an example of the air conditioner circuit that adopts the line control machine circuit that the utility model was proposed example, referring to shown in Figure 1, air conditioner circuit in the present embodiment, comprise master control borad and line control machine circuit, this line control machine circuit comprises master chip IC2, and master control borad is connected by current-loop communication circuit with master chip IC2, and master chip IC2 is connected with display screen by display screen drive chip IC1.Line control machine circuit in the present embodiment by adopting communication modes and the master control borad communication of electric current loop, makes the higher more accurate rapider and automatically control of realization of control accuracy, and interference free performance is better.
As a specific embodiment, referring to shown in Figure 2, concrete schematic diagram for air conditioner circuit among Fig. 1, wherein current-loop communication circuit connects master control borad by four routes, wherein terminal 3 is connected 12V direct supply and the power supply ground that connects respectively master control borad with terminal, terminal 1 and terminal 2 are respectively data sending terminal and data receiver, wherein terminal 1 connects the input end of the current loop circuit that is comprised of a NPN triode Q3, the output terminal of this current loop circuit connects the data receiver terminal WIRED-RXD of master chip IC2, terminal 2 connects the output terminal of the current loop circuit that is comprised of the 2nd NPN triode Q4, the input end of this current loop circuit connects the sub-WIRED-TXD of data sending terminal of master chip IC2, the sub-TXD of the data sending terminal of master control borad connects the input end of the current loop circuit that is comprised of the 3rd NPN triode Q1, the output terminal splicing ear 1 of this current loop circuit, the data receiver terminal RXD of master control borad connects the output terminal of the current loop circuit that is comprised of the 4th NPN triode Q2, the input end splicing ear 2 of this current loop circuit.The circuit theory diagrams of master chip IC2 as shown in Figure 3, the NEC chip that it is uPD78F0524AGB-LQFP52 that master chip IC2 can adopt a model is realized, its pin 33,34 are respectively data receiver terminal WIRED-RXD and the sub-WIRED-TXD of data sending terminal, realize communicating by letter with master control borad by current-loop communication circuit, master chip IC2 also is connected with hummer BUZ1 by buzzer circuit, referring to shown in Figure 3, buzzer circuit is comprised of a NPN triode Q5 and current-limiting resistance, 51 pins of master chip IC2 connect the input end of buzzer circuit, when every operation one-touch, buzzer circuit is corresponding conducting also, and corresponding hummer BUZ1 can make response.
Display screen is LCDs LCD1 in the present embodiment, so display screen drive chip IC1 is that accordingly LCDs drives chip, and the chip that can to adopt a model be HT1621B-28SSOP is realized.LCDs has the high advantage of resolution, when display pattern is more, and clear display.Display screen can also show the current state of operation of air conditioner, is convenient to the information that the user understands current operation; When air-conditioning broke down, line control machine showed failure code, was convenient to maintenance.
Master chip IC2 also is connected with press key lamp LED1, LED3, LED4 by the press key lamp circuit, and the press key lamp circuit is comprised of a NPN triode Q6 and current-limiting resistance, and when operation push-button, the press key lamp circuit is corresponding conducting also, and corresponding LED lamp is lighted.Master chip IC2 also is connected with temperature sensor by temperature sensor circuit, as shown in Figure 3, the circuit that temperature sensor socket CN2 connects is temperature sensor circuit, its input end T-ROOM is connected with 40 pins of master chip IC2, by the set temperature sensor, real-time testing environment temperature, and feed back to master control borad by master chip IC2.
In addition, also comprise voltage conversion circuit in the present embodiment, referring to shown in Figure 3, realized by a conversion chip IC4, the input end of voltage conversion circuit connects 12V dc power output end of current-loop communication circuit, the output terminal output 5V DC voltage of described voltage conversion circuit.
What backlight adopted is the 12V power supply, when the operation line control machine, backlight lightening, when not operating for a long time, backlight extinguish energy-conservation.By backlight being set directly from the master control borad power taking, working current is stable during backlight lightening, and is dark when bright in the time of can be because of the fluctuation of external voltage.14～19 pins of master chip IC2 connect key circuit, have six operation push-buttons on the line control machine, successively on ﹠ off switch, mode switching key, timing key, wind speed switch key, ▲ (temperature+), ▼ (temperature-), function is as follows:
Switch switch: whenever by once, start shooting or shutdown.
Mode key: whenever press once, pattern is once switched.
Sleep/timing key: this key has two functions: the 1st function sleep function; The 2nd function timing function
Wind speed/wind direction key: this button has 2 functions: the 1st function wind speed switches, low wind-apoplexy-Gao wind-automatic wind; The 2nd function wind direction is adjusted, and pendulum wind or wind blade position are set.
Lifting key: usefulness when design temperature or timing, temperature increases progressively, and timing increases progressively.
The decline key: usefulness when design temperature or timing, lapse of temperature, timing successively decreases.
Preferably, described master chip also is connected with the remote controller signal receiving circuit.
Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement also should belong to protection domain of the present utility model.
Claims (10)
1. a line control machine circuit comprises master chip, is connected to the communicating circuit between master control borad and the described master chip, and it is characterized in that: described communicating circuit is current-loop communication circuit, and described master chip is connected with display screen by display screen drive chip.
2. line control machine circuit according to claim 1, it is characterized in that: described current-loop communication circuit connects master control borad by four routes, wherein two-way connects respectively 12V direct supply and the power supply ground of master control borad, two-way is data transfer terminal in addition, wherein a circuit-switched data transmission terminal connects the input end of the current loop circuit that is comprised of a NPN triode, the output terminal of this current loop circuit connects the data receiver terminal of master chip, an other circuit-switched data transmission terminal connects the output terminal of the current loop circuit that is comprised of the 2nd NPN triode, and the input end of this current loop circuit connects data sending terminal of master chip.
3. line control machine circuit according to claim 2, it is characterized in that: described master chip also is connected with hummer by buzzer circuit.
4. line control machine circuit according to claim 3, it is characterized in that: described master chip also is connected with press key lamp by the press key lamp circuit.
5. line control machine circuit according to claim 4, it is characterized in that: described master chip also is connected with temperature sensor by temperature sensor circuit.
6. the described line control machine circuit of each claim according to claim 2-5, it is characterized in that: also comprise voltage conversion circuit, the input end of described voltage conversion circuit connects 12V dc power output end of current-loop communication circuit, the output terminal output 5V DC voltage of described voltage conversion circuit.
7. line control machine circuit according to claim 6, it is characterized in that: described display screen is LCDs, described display screen drive chip is that LCDs drives chip.
8. line control machine circuit according to claim 6, it is characterized in that: described master chip also is connected with the remote controller signal receiving circuit.
9. air conditioner circuit, comprise master control borad and line control machine circuit, described line control machine circuit comprises master chip, it is characterized in that: described master control borad is connected by current-loop communication circuit with described master chip, and described master chip is connected with display screen by display screen drive chip.
10. air conditioner circuit according to claim 9, it is characterized in that: described current-loop communication circuit connects master control borad by four routes, wherein two-way connects respectively 12V direct supply and the power supply ground of master control borad, two-way is respectively data sending terminal and data receiver in addition, wherein data sending terminal connects the input end of the current loop circuit that is comprised of a NPN triode, the output terminal of this current loop circuit connects the data receiver terminal of master chip, data receiver connects the output terminal of the current loop circuit that is comprised of the 2nd NPN triode, the input end of this current loop circuit connects data sending terminal of master chip, the input end of the current loop circuit that the data sending terminal sub-connection of described master control borad is comprised of the 3rd NPN triode, the output terminal of this current loop circuit connects the data sending terminal of current-loop communication circuit, the output terminal of the current loop circuit that the data receiver sub-connection of described master control borad is comprised of the 4th NPN triode, the input end of this current loop circuit connects the data receiver of current-loop communication circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320285352 CN203250159U (en) | 2013-05-23 | 2013-05-23 | A wired controller circuit and an air conditioner circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320285352 CN203250159U (en) | 2013-05-23 | 2013-05-23 | A wired controller circuit and an air conditioner circuit |
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| Publication Number | Publication Date |
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| CN203250159U true CN203250159U (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320285352 Expired - Lifetime CN203250159U (en) | 2013-05-23 | 2013-05-23 | A wired controller circuit and an air conditioner circuit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105354933A (en) * | 2015-12-03 | 2016-02-24 | 珠海格力电器股份有限公司 | Method, device and system for household charging of multi-split air conditioner |
| CN106440195A (en) * | 2016-09-21 | 2017-02-22 | 北京启冠智能科技股份有限公司 | Central air conditioner controller and control method |
| CN107065615A (en) * | 2017-05-05 | 2017-08-18 | 青岛海信日立空调系统有限公司 | A kind of signal processing method, device and line control machine |
| CN111237986A (en) * | 2020-01-13 | 2020-06-05 | 广东志高暖通设备股份有限公司 | Air conditioner display device and air conditioner |
| CN111301458A (en) * | 2018-12-12 | 2020-06-19 | 西安中车永电捷通电气有限公司 | Air-conditioning display setting device for motor train unit |
-
2013
- 2013-05-23 CN CN 201320285352 patent/CN203250159U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105354933A (en) * | 2015-12-03 | 2016-02-24 | 珠海格力电器股份有限公司 | Method, device and system for household charging of multi-split air conditioner |
| CN105354933B (en) * | 2015-12-03 | 2018-07-20 | 珠海格力电器股份有限公司 | Method, device and system for household charging of multi-split air conditioner |
| CN106440195A (en) * | 2016-09-21 | 2017-02-22 | 北京启冠智能科技股份有限公司 | Central air conditioner controller and control method |
| CN107065615A (en) * | 2017-05-05 | 2017-08-18 | 青岛海信日立空调系统有限公司 | A kind of signal processing method, device and line control machine |
| CN107065615B (en) * | 2017-05-05 | 2019-08-09 | 青岛海信日立空调系统有限公司 | A kind of signal processing method, device and line control machine |
| CN111301458A (en) * | 2018-12-12 | 2020-06-19 | 西安中车永电捷通电气有限公司 | Air-conditioning display setting device for motor train unit |
| CN111237986A (en) * | 2020-01-13 | 2020-06-05 | 广东志高暖通设备股份有限公司 | Air conditioner display device and air conditioner |
| CN111237986B (en) * | 2020-01-13 | 2022-01-04 | 广东积微科技有限公司 | Air conditioner display device and air conditioner |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131023 |
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| CX01 | Expiry of patent term |