CN207214367U - A kind of central air-conditioning controller - Google Patents
A kind of central air-conditioning controller Download PDFInfo
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- CN207214367U CN207214367U CN201720914744.3U CN201720914744U CN207214367U CN 207214367 U CN207214367 U CN 207214367U CN 201720914744 U CN201720914744 U CN 201720914744U CN 207214367 U CN207214367 U CN 207214367U
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Abstract
The utility model discloses a kind of central air-conditioning controller; including governor circuit; the input connection external sensor of governor circuit; output end is connected with outputting circuit for relay, protection circuit, communication interface and memory module; isolation circuit is provided between external sensor and governor circuit; the protection comprehensive to each circuit in controller inside can be realized; ensure that signal input is stable; influence of the external interference signals to controller is it also avoid simultaneously, improves the stability and reliability of data transfer.
Description
Technical field
A kind of central air-conditioning is the utility model is related to, particularly a kind of central air-conditioning controller.
Background technology
The function of central air-conditioning controller includes collection host work state, ventilation shaft ventilation condition, space environment
The data such as air quality parameters, are then sent to server process, although current central air-conditioning controller is more and more intelligent,
But the protection to control system internal circuit is have ignored, this will shorten the service life of all parts in controller, simultaneously
Also the performance of controller can be had a strong impact on, causing the data that collect, there is larger error, reliability and stability are poor.
The content of the invention
For overcome the deficiencies in the prior art, the utility model offer is a kind of to be protected more fully to controller internal circuit
Central air-conditioning controller.
Technical scheme is used by the utility model solves its technical problem：
A kind of central air-conditioning controller, including governor circuit, the input connection external sensor of the governor circuit are defeated
Go out end and be connected with outputting circuit for relay, protection circuit, communication interface and memory module, the external sensor and governor circuit
Between be provided with isolation circuit；Foregoing circuit provides working power by power supply circuit.
The power supply circuit includes power supply chip U4, plugboard P1, resistance R56, piezo-resistance MOV1, diode D1, two
Pole pipe D3, fuse F1, inductance L1, electric capacity C12, electric capacity C13, electric capacity C59, polar capacitor C10 and polar capacitor C11；It is described
Plugboard P1 1,2 pins ground connection, 3,4 pins connect altogether is followed by 24V power supplys；The ON/OFF pins and GND of the power supply chip draw
Pin is grounded；The polar capacitor C10 positive poles connect the IN pins of the power supply chip, negative pole ground connection；A termination of the electric capacity R12
The 24V power supplys, other end ground connection；The negative pole of the diode D3 connects the node of the 24V power supplys and the electric capacity C12, just
Two-way is divided in pole, is grounded all the way by the piezo-resistance MOV1, and another way connects the plugboard P1's by the fuse F1
3rd, the node of 4 pins and 24V power supplys；Three tunnels of OUT pins point of the power supply chip U4, pass sequentially through the resistance R56 all the way
It is grounded with electric capacity C59, another way is grounded by the diode D1, and the 3rd tunnel is connected with inductance L1 one end；The inductance L1
The other end point three tunnels, be grounded all the way by the electric capacity C13, another way is grounded by the polar capacitor C11, the 3rd tunnel according to
Secondary light emitting diode D2 and resistance R1 ground connection by being sequentially connected in series, and in the inductance L1 and the section of the polar capacitor C11
Point is connected with 5V power supplys.
The protection circuit includes data encryption circuit and optical coupling isolation circuit；The data encryption circuit includes densifying plate
U17, resistance R57 and resistance R58；A total of 8 pins of densifying plate U17, wherein, 4 pins ground connection, the resistance R57 mono-
Terminate 6 pins of the densifying plate U17, another termination 5V power supplys；The resistance R58 mono- terminates the 5 of the densifying plate U17
Pin, another termination 5V power supplys；8 pins of the densifying plate U17 connect the node between the resistance R57 and 5V power supplys,
Remaining pin of the densifying plate U17 is hanging；The optical coupling isolation circuit includes photoelectrical coupler U16, connector P6, resistance
R30, resistance R31, resistance R33, resistance R34, resistance R35, resistance R36, resistance R38, resistance R39, resistance R40, resistance R41,
Resistance R43, resistance R44, resistance R45, resistance R46, resistance R48, resistance R49, resistance R50, resistance R52, resistance R54, resistance
R55, light emitting diode D11, light emitting diode D12, light emitting diode D13, light emitting diode D14, NPN type triode Q3,
The triode Q4 of NPN type, the triode Q5 of NPN type and NPN type triode Q6；Described resistance R35 one end and described luminous two
Pole pipe D11 positive pole connection, the other end connect the 5V power supplys, and the negative pole of the light emitting diode D11 connects the photoelectric coupling
Device U16 16 pins；One end of the resistance R40 is connected with the positive pole of the light emitting diode D12, and the other end connects the 5V
Power supply, the negative pole of the light emitting diode D12 connect 14 pins of the photoelectrical coupler U16；One end of the resistance R45 and institute
Light emitting diode D13 positive pole connection, another termination 5V power supplys are stated, the light emitting diode D13 negative poles connect the photoelectricity
Coupler U16 12 pins；One end of the resistance R50 is connected with the positive pole of the light emitting diode D14, other end connection institute
5V power supplys are stated, the light emitting diode D14 negative poles connect 10 pins of the photoelectrical coupler U16；The photoelectrical coupler U16's
15 pins, 13 pins, 11 pins, 9 pins ground connection；16 pins of the photoelectrical coupler U16 and the light emitting diode D11 it
Between node be connected with pin KIN1, the pin KIN1 and main control chip 19 pins connection；The photoelectrical coupler U16's
Node between 14 pins and the light emitting diode D12 is connected with pin KIN2, the pin KIN2 and the main control chip
20 pins connection；Node between 12 pins of the photoelectrical coupler U16 and the light emitting diode D13 is connected with pin
KIN3, the pin KIN3 are connected with 21 pins of the main control chip；10 pins of the photoelectrical coupler U16 and the hair
Node between optical diode D14 is connected with pin KIN4, and the pin KIN4 is connected with 22 pins of the main control chip；Institute
State 1 pin that resistance R34 one terminates the photoelectrical coupler U16, another termination 5V power supplys；The resistance R39 mono- terminates described
Photoelectrical coupler U16 3 pins, another termination 5V power supplys；What the resistance R44 mono- terminated the photoelectrical coupler U16 5 draws
Pin, another termination 5V power supplys；The resistance R49 mono- terminates 7 pins of the photoelectrical coupler U16, another termination 5V power supplys；Institute
The c poles for stating the triode Q3 of NPN type connect 2 pins of the photoelectrical coupler U16, and the triode Q3 of NPN type e poles connect
Ground, the resistance R33 mono- terminate the triode Q3 of NPN type b poles, another termination connector P6 5 pins；It is described
The triode Q4 of NPN type c poles connect 4 pins of the photoelectrical coupler U16, and the triode Q4 of NPN type e poles are grounded,
The resistance R38 mono- terminates the triode Q4 of NPN type b poles, another termination connector P6 6 pins, the NPN
The triode Q5 of type c poles connect 6 pins of the photoelectrical coupler U16, and the triode Q5 of NPN type e poles ground connection is described
Resistance R43 mono- terminates the triode Q5 of NPN type b poles, another termination connector P6 7 pins；The NPN type
Triode Q6 c poles connect 8 pins of the photoelectrical coupler U16, the triode Q6 of NPN type e poles ground connection, the electricity
Resistance R48 mono- ends are connected on the triode Q6 of NPN type b poles, another termination connector P6 8 pins；The resistance R36
One end connects 1 pin of the photoelectrical coupler U16, another termination photoelectrical coupler U16 2 pins and the NPN type
Triode Q3 c poles node；Described resistance R41 one end connects 3 pins of the photoelectrical coupler U16, another termination institute
State photoelectrical coupler U16 4 pins and the node of the triode Q4 of NPN type c poles；Described resistance R46 one end connects institute
State photoelectrical coupler U16 5 pins, another termination photoelectrical coupler U16 6 pins and the triode Q5 of the NPN type
C poles node；Described resistance R52 one end connects 7 pins of the photoelectrical coupler U16, another termination photoelectric coupling
Device U16 8 pins and the node of the c poles of the NPN type triode Q6；What the resistance R30 mono- terminated the connector P6 5 draws
The node of pin and the resistance R33, another termination 5V power supplys；The resistance R31 mono- terminates 6 pins and the institute of the connector P6
State resistance R38 node, another termination 5V power supplys；The resistance R54 mono- terminates the triode Q5 of NPN type b poles and institute
State resistance R43 node, another termination 5V power supplys；The resistance R55 mono- terminates the triode Q6 of NPN type b poles and institute
State resistance R48 node, another termination 5V power supplys；1 pin, 2 pins, 3 pins and 4 pins of the connector P6 are grounded.
The beneficial effects of the utility model are：Controller of the present utility model includes isolation circuit and protection circuit, is supplying
The anti-short circuit of diode is provided with circuit, connects in the circuit of external sensor and is provided with lightning protection component, can be realized to control
The comprehensive protection of each circuit inside device, it is ensured that signal input is stable, while it also avoid external interference signals to controller
Influence, improve the stability and reliability of data transfer.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is structured flowchart of the present utility model；
Fig. 2 is circuit theory diagrams Part I of the present utility model；
Fig. 3 is circuit theory diagrams Part II of the present utility model；
Fig. 4 is circuit theory diagrams Part III of the present utility model；
Fig. 5 is circuit theory diagrams Part IV of the present utility model；
Fig. 6 is circuit theory diagrams Part V of the present utility model；
Fig. 7 is circuit theory diagrams Part VI of the present utility model.
Embodiment
Referring to figs. 1 to Fig. 7, a kind of central air-conditioning controller, including governor circuit, the input connection of the governor circuit
External sensor, output end are connected with outputting circuit for relay, protection circuit, communication interface and memory module, the outside biography
Isolation circuit is provided between sensor and governor circuit；Foregoing circuit provides working power by power supply circuit.
The governor circuit includes reset circuit and clock circuit etc., and main control chip is M451 series in the governor circuit
Single-chip microcomputer, the main control chip is interior to set four groups of URAT interfaces, respectively UART0, UART1, UART2 and UART3, the outside
Sensor main will include the RS485 interfaces of two-way hardware independence and RS232 interface independent all the way, and the UART0 is as RS232
Interface, described UART1, UART2 are as RS485 interfaces；The memory module memory storage chip is W25Q128 family chips；
The RS485 interfaces are connected to spark pipe and anti-thunder tube, enhance the stability of communication interface；The UART interface and outside
Isolation circuit is additionally provided between sensor, ADUM1200 chips are connected in the isolation circuit, RS485 interfaces can be prevented to master
Control the interference of chip；The outputting circuit for relay improves output power of circuit；The network server interface connects including network
Mouth chips W 5500 and Ethernet interface RJ45, can provide interface for the connection of governor circuit and server.
The power supply circuit includes power supply chip U4, plugboard P1, resistance R56, piezo-resistance MOV1, diode D1, two
Pole pipe D3, fuse F1, inductance L1, electric capacity C12, electric capacity C13, electric capacity C59, polar capacitor C10 and polar capacitor C11；It is described
Plugboard P1 1,2 pins ground connection, 3,4 pins connect altogether is followed by 24V power supplys；The ON/OFF pins and GND of the power supply chip draw
Pin is grounded；The polar capacitor C10 positive poles connect the IN pins of the power supply chip, negative pole ground connection；A termination of the electric capacity R12
The 24V power supplys, other end ground connection；The negative pole of the diode D3 connects the node of the 24V power supplys and the electric capacity C12, just
Two-way is divided in pole, is grounded all the way by the piezo-resistance MOV1, and another way connects the plugboard P1's by the fuse F1
3rd, the node of 4 pins and 24V power supplys；Three tunnels of OUT pins point of the power supply chip U4, pass sequentially through the resistance R56 all the way
It is grounded with electric capacity C59, another way is grounded by the diode D1, and the 3rd tunnel is connected with inductance L1 one end；The inductance L1
The other end point three tunnels, be grounded all the way by the electric capacity C13, another way is grounded by the polar capacitor C11, the 3rd tunnel according to
Secondary light emitting diode D2 and resistance R1 ground connection by being sequentially connected in series, and in the inductance L1 and the section of the polar capacitor C11
Point is connected with 5V power supplys, and the power supply circuit uses LM2596 switching power source chips, and the 24V power supplys of input can be changed into 5V electricity
Source, the anti-short circuit of diode is terminated with power input, output termination filter capacitor can remove Switching Power Supply ripple, ensure that voltage is steady
Fixed input.
The protection circuit includes data encryption circuit and optical coupling isolation circuit；The data encryption circuit includes densifying plate
U17, resistance R57 and resistance R58；A total of 8 pins of densifying plate U17, wherein, 4 pins ground connection, the resistance R57 mono-
Terminate 6 pins of the densifying plate U17, another termination 5V power supplys；The resistance R58 mono- terminates the 5 of the densifying plate U17
Pin, another termination 5V power supplys；8 pins of the densifying plate U17 connect the node between the resistance R57 and 5V power supplys,
Remaining pin of the densifying plate U17 is hanging；The optical coupling isolation circuit includes photoelectrical coupler U16, connector P6, resistance
R30, resistance R31, resistance R33, resistance R34, resistance R35, resistance R36, resistance R38, resistance R39, resistance R40, resistance R41,
Resistance R43, resistance R44, resistance R45, resistance R46, resistance R48, resistance R49, resistance R50, resistance R52, resistance R54, resistance
R55, light emitting diode D11, light emitting diode D12, light emitting diode D13, light emitting diode D14, NPN type triode Q3,
The triode Q4 of NPN type, the triode Q5 of NPN type and NPN type triode Q6；Described resistance R35 one end and the light-emitting diodes
Pipe D11 positive pole connection, the other end connect the 5V power supplys, and the negative pole of the light emitting diode D11 connects the photoelectrical coupler
U16 16 pins；One end of the resistance R40 is connected with the positive pole of the light emitting diode D12, and the other end connects the 5V electricity
Source, the negative pole of the light emitting diode D12 connect 14 pins of the photoelectrical coupler U16；One end of the resistance R45 with it is described
Light emitting diode D13 positive pole connection, another termination 5V power supplys, the light emitting diode D13 negative poles connect the photoelectricity coupling
Clutch U16 12 pins；One end of the resistance R50 is connected with the positive pole of the light emitting diode D14, described in other end connection
5V power supplys, the light emitting diode D14 negative poles connect 10 pins of the photoelectrical coupler U16；The 15 of the photoelectrical coupler U16
Pin, 13 pins, 11 pins, 9 pins ground connection；Between 16 pins of the photoelectrical coupler U16 and the light emitting diode D11
Node be connected with pin KIN1, the pin KIN1 and main control chip 19 pins connection；The 14 of the photoelectrical coupler U16
Node between pin and the light emitting diode D12 is connected with pin KIN2, the pin KIN2 and the main control chip
20 pins connect；Node between 12 pins of the photoelectrical coupler U16 and the light emitting diode D13 is connected with pin
KIN3, the pin KIN3 are connected with 21 pins of the main control chip；10 pins of the photoelectrical coupler U16 and the hair
Node between optical diode D14 is connected with pin KIN4, and the pin KIN4 is connected with 22 pins of the main control chip；Institute
State 1 pin that resistance R34 one terminates the photoelectrical coupler U16, another termination 5V power supplys；The resistance R39 mono- terminates described
Photoelectrical coupler U16 3 pins, another termination 5V power supplys；What the resistance R44 mono- terminated the photoelectrical coupler U16 5 draws
Pin, another termination 5V power supplys；The resistance R49 mono- terminates 7 pins of the photoelectrical coupler U16, another termination 5V power supplys；Institute
The c poles for stating the triode Q3 of NPN type connect 2 pins of the photoelectrical coupler U16, and the triode Q3 of NPN type e poles connect
Ground, the resistance R33 mono- terminate the triode Q3 of NPN type b poles, another termination connector P6 5 pins；It is described
The triode Q4 of NPN type c poles connect 4 pins of the photoelectrical coupler U16, and the triode Q4 of NPN type e poles are grounded,
The resistance R38 mono- terminates the triode Q4 of NPN type b poles, another termination connector P6 6 pins, the NPN
The triode Q5 of type c poles connect 6 pins of the photoelectrical coupler U16, and the triode Q5 of NPN type e poles ground connection is described
Resistance R43 mono- terminates the triode Q5 of NPN type b poles, another termination connector P6 7 pins；The NPN type
Triode Q6 c poles connect 8 pins of the photoelectrical coupler U16, the triode Q6 of NPN type e poles ground connection, the electricity
Resistance R48 mono- ends are connected on the triode Q6 of NPN type b poles, another termination connector P6 8 pins；The resistance R36
One end connects 1 pin of the photoelectrical coupler U16, another termination photoelectrical coupler U16 2 pins and the NPN type
Triode Q3 c poles node；Described resistance R41 one end connects 3 pins of the photoelectrical coupler U16, another termination institute
State photoelectrical coupler U16 4 pins and the node of the triode Q4 of NPN type c poles；Described resistance R46 one end connects institute
State photoelectrical coupler U16 5 pins, another termination photoelectrical coupler U16 6 pins and the triode Q5 of the NPN type
C poles node；Described resistance R52 one end connects 7 pins of the photoelectrical coupler U16, another termination photoelectric coupling
Device U16 8 pins and the node of the c poles of the NPN type triode Q6；What the resistance R30 mono- terminated the connector P6 5 draws
The node of pin and the resistance R33, another termination 5V power supplys；The resistance R31 mono- terminates 6 pins and the institute of the connector P6
State resistance R38 node, another termination 5V power supplys；The resistance R54 mono- terminates the triode Q5 of NPN type b poles and institute
State resistance R43 node, another termination 5V power supplys；The resistance R55 mono- terminates the triode Q6 of NPN type b poles and institute
State resistance R48 node, another termination 5V power supplys；1 pin, 2 pins, 3 pins and 4 pins of the connector P6 are grounded,
Optical coupling isolation circuit is avoided that governor circuit can be to collection by accidental damage, data encryption circuit by external signal interference
To data be encrypted, enhance the confidentiality and reliability of data transfer.
Controller of the present utility model includes isolation circuit and protection circuit, prevents in power supply circuit provided with diode short
Connect, connect in the circuit of external sensor and be provided with lightning protection component, can realize comprehensive to each circuit in controller inside
Protection, it is ensured that signal input is stable, while it also avoid influence of the external interference signals to controller, improves data transfer
Stability and reliability.
Embodiment above can not limit the protection domain of the invention, and the personnel of professional skill field are not departing from
In the case of the invention general idea, the impartial modification and change done, the scope that the invention is covered is still fallen within
Within.
Claims (4)
1. a kind of central air-conditioning controller, including governor circuit, it is characterised in that the input connection of the governor circuit is outside
Sensor, output end are connected with outputting circuit for relay, protection circuit, communication interface and memory module, the external sensor
Isolation circuit is provided between governor circuit；Foregoing circuit provides working power by power supply circuit.
2. a kind of central air-conditioning controller according to claim 1, it is characterised in that the power supply circuit includes power supply core
Piece U4, plugboard P1, resistance R56, piezo-resistance MOV1, diode D1, diode D3, fuse F1, inductance L1, electric capacity C12,
Electric capacity C13, electric capacity C59, polar capacitor C10 and polar capacitor C11；1, the 2 pins ground connection of the plugboard P1,3,4 pins are total to
Connect and be followed by 24V power supplys；ON/OFF pins and the GND pin ground connection of the power supply chip；The polar capacitor C10 positive poles connect described
The IN pins of power supply chip, negative pole ground connection；The termination 24V power supplys of the electric capacity R12, other end ground connection；Two pole
Pipe D3 negative pole connects the node of the 24V power supplys and the electric capacity C12, and positive pole divides two-way, passes through the piezo-resistance all the way
MOV1 is grounded, and another way connects 3,4 pins of the plugboard P1 and the node of 24V power supplys by the fuse F1；The electricity
Source chip U4 three tunnels of OUT pins point, pass sequentially through resistance R56 and electric capacity the C59 ground connection all the way, and another way passes through described two
Pole pipe D1 is grounded, and the 3rd tunnel is connected with inductance L1 one end；Three tunnels of the other end of the inductance L1 point, pass through the electric capacity all the way
C13 is grounded, and another way be grounded by the polar capacitor C11, the 3rd tunnel pass sequentially through the light emitting diode D2 that is sequentially connected in series with
Resistance R1 is grounded, and is connected with 5V power supplys in the inductance L1 and the polar capacitor C11 node.
3. a kind of central air-conditioning controller according to claim 2, it is characterised in that the protection circuit adds including data
Cipher telegram road and optical coupling isolation circuit；The data encryption circuit includes densifying plate U17, resistance R57 and resistance R58；The encryption
A total of 8 pins of plate U17, wherein, 4 pins ground connection, the resistance R57 mono- terminates 6 pins of the densifying plate U17, another
Terminate the 5V power supplys；The resistance R58 mono- terminates 5 pins of the densifying plate U17, another termination 5V power supplys；It is described
Densifying plate U17 8 pins connect the node between the resistance R57 and 5V power supplys, and remaining pin of the densifying plate U17 is hanging.
4. a kind of central air-conditioning controller according to claim 3, it is characterised in that the optical coupling isolation circuit includes light
Electric coupler U16, connector P6, resistance R30, resistance R31, resistance R33, resistance R34, resistance R35, resistance R36, resistance R38,
Resistance R39, resistance R40, resistance R41, resistance R43, resistance R44, resistance R45, resistance R46, resistance R48, resistance R49, resistance
R50, resistance R52, resistance R54, resistance R55, light emitting diode D11, light emitting diode D12, light emitting diode D13, luminous two
Pole pipe D14, the triode Q3 of NPN type, the triode Q4 of NPN type, the triode Q6 of the triode Q5 of NPN type and NPN type；It is described
Resistance R35 one end is connected with the positive pole of the light emitting diode D11, and the other end connects the 5V power supplys, the light emitting diode
D11 negative pole connects 16 pins of the photoelectrical coupler U16；One end of the resistance R40 and the light emitting diode D12 are just
Pole connects, and the other end connects the 5V power supplys, and the negative pole of the light emitting diode D12 connects the 14 of the photoelectrical coupler U16 and drawn
Pin；One end of the resistance R45 is connected with the positive pole of the light emitting diode D13, another termination 5V power supplys, described luminous
Diode D13 negative poles connect 12 pins of the photoelectrical coupler U16；One end of the resistance R50 and the light emitting diode D14
Positive pole connection, the other end connects the 5V power supplys, and the light emitting diode D14 negative poles connect the 10 of the photoelectrical coupler U16
Pin；15 pins of the photoelectrical coupler U16,13 pins, 11 pins, 9 pins ground connection；The 16 of the photoelectrical coupler U16
Node between pin and the light emitting diode D11 is connected with pin KIN1, and the 19 of the pin KIN1 and main control chip draws
Pin connects；Node between 14 pins of the photoelectrical coupler U16 and the light emitting diode D12 is connected with pin KIN2,
The pin KIN2 is connected with 20 pins of the main control chip；12 pins of the photoelectrical coupler U16 and described luminous two
Node between pole pipe D13 is connected with pin KIN3, and the pin KIN3 is connected with 21 pins of the main control chip；The light
Node between electric coupler U16 10 pins and the light emitting diode D14 be connected with pin KIN4, the pin KIN4 with
The 22 pins connection of the main control chip；The resistance R34 one terminates 1 pin of the photoelectrical coupler U16, another termination 5V
Power supply；The resistance R39 mono- terminates 3 pins of the photoelectrical coupler U16, another termination 5V power supplys；Described resistance R44 one end
Connect 5 pins of the photoelectrical coupler U16, another termination 5V power supplys；The resistance R49 mono- terminates the photoelectrical coupler U16
7 pins, another termination 5V power supplys；The triode Q3 of NPN type c poles meet 2 pins of the photoelectrical coupler U16, institute
The triode Q3 of NPN type e poles ground connection is stated, the resistance R33 mono- terminates the triode Q3 of NPN type b poles, another termination
5 pins of the connector P6；The triode Q4 of NPN type c poles connect 4 pins of the photoelectrical coupler U16, described
The triode Q4 of NPN type e poles ground connection, the resistance R38 mono- terminate the triode Q4 of NPN type b poles, another termination institute
Connector P6 6 pins are stated, the triode Q5 of NPN type c poles meet 6 pins of the photoelectrical coupler U16, the NPN
The triode Q5 of type e poles ground connection, the resistance R43 mono- terminates the triode Q5 of NPN type b poles, described in another termination
Connector P6 7 pins；The triode Q6 of NPN type c poles connect 8 pins of the photoelectrical coupler U16, the NPN
The triode Q6 of type e poles ground connection, the ends of resistance R48 mono- are connected on the triode Q6 of NPN type b poles, another termination institute
State connector P6 8 pins；Described resistance R36 one end connects 1 pin of the photoelectrical coupler U16, another termination light
Electric coupler U16 2 pins and the node of the triode Q3 of NPN type c poles；Described resistance R41 one end connects the light
Electric coupler U16 3 pins, the c poles of another termination photoelectrical coupler U16 4 pins and the triode Q4 of the NPN type
Node；Described resistance R46 one end connects 5 pins of the photoelectrical coupler U16, another termination photoelectrical coupler U16
6 pins and the NPN type triode Q5 c poles node；Described resistance R52 one end connects the photoelectrical coupler U16
7 pins, another termination photoelectrical coupler U16 8 pins and the node of the c poles of the NPN type triode Q6；The electricity
Resistance R30 mono- terminates 5 pins of the connector P6 and the node of the resistance R33, another termination 5V power supplys；The resistance R31
The node of the one termination connector P6 6 pins and the resistance R38, another termination 5V power supplys；The resistance R54 mono- is terminated
The triode Q5 of NPN type b poles and the node of the resistance R43, another termination 5V power supplys；The resistance R55 mono- is terminated
The triode Q6 of NPN type b poles and the node of the resistance R48, another termination 5V power supplys；Draw the 1 of the connector P6
Pin, 2 pins, 3 pins and 4 pins are grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720914744.3U CN207214367U (en) | 2017-07-26 | 2017-07-26 | A kind of central air-conditioning controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720914744.3U CN207214367U (en) | 2017-07-26 | 2017-07-26 | A kind of central air-conditioning controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207214367U true CN207214367U (en) | 2018-04-10 |
Family
ID=61814184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720914744.3U Active CN207214367U (en) | 2017-07-26 | 2017-07-26 | A kind of central air-conditioning controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207214367U (en) |
-
2017
- 2017-07-26 CN CN201720914744.3U patent/CN207214367U/en active Active
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