CN208021368U - Automobile middle control device - Google Patents
Automobile middle control device Download PDFInfo
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- CN208021368U CN208021368U CN201820195474.XU CN201820195474U CN208021368U CN 208021368 U CN208021368 U CN 208021368U CN 201820195474 U CN201820195474 U CN 201820195474U CN 208021368 U CN208021368 U CN 208021368U
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Abstract
The utility model discloses a kind of automobile middle control devices, including circuit board, circuit board is equipped with control circuit, microcontroller and power supply circuit, control circuit and power supply circuit are connect with microcontroller, control circuit includes main control chip, relay, first metal-oxide-semiconductor, first resistor, second resistance, first diode and the second diode, first pin of the main control chip, second pin, 7th pin, 8th pin, 9th pin, 13rd pin and the 14th pin are hanging, the third pin of main control chip is grounded, 4th pin of main control chip and the 68th pin of microcontroller connect, 5th pin of main control chip and one end of first resistor connect, the other end of first resistor and the 68th pin of microcontroller connect, 6th pin of main control chip and the 57th pin of microcontroller connect.The automobile middle control device for implementing the utility model, has the advantages that：Circuit structure is relatively simple, cost is relatively low, the safety and reliability of circuit is higher.
Description
Technical field
The utility model is related to field of automobile control, more particularly to a kind of automobile middle control device.
Background technology
In the epoch that science and technology now is flourishing, automobile is widely used as the vehicles indispensable in daily life, and
Central controller as automobile plays critically important role in the car, mainly play give alarm send signal, protection and
Vehicle remote control central lock and vehicle window are controlled, car door is automatically opened when air bag is opened, is remotely controlled door contact interrupter, learns code remote control, when
The electric current of signalling automatic detection vehicle window when enabling, control steering indicating light, car light, remove the effects that fog lamp at windscreen wiper, to the normal of automobile
Operation plays a key role.The circuit part of the central controller of traditional automobile is complicated, and hardware cost is higher.Separately
Outside, since the circuit part of the central controller of traditional automobile lacks corresponding circuit protection function, the safety of circuit is caused
Property and reliability be not high.
Utility model content
The technical problem to be solved by the present invention is to for the drawbacks described above of the prior art, provide a kind of circuit knot
Structure is relatively simple, cost is relatively low, the higher automobile middle control device of the safety and reliability of circuit.
Technical solution adopted by the utility model to solve its technical problems is：Construct a kind of automobile middle control device, including electricity
Road plate, the circuit board are equipped with control circuit, microcontroller and power supply circuit, the control circuit and power supply circuit with it is described
Microcontroller connects, and the control circuit includes main control chip, relay, the first metal-oxide-semiconductor, first resistor, second resistance, the one or two
Pole pipe and the second diode, the first pin of the main control chip, second pin, the 7th pin, the 8th pin, the 9th pin,
13rd pin and the 14th pin are hanging, and the third pin ground connection of the main control chip, the 4th of the main control chip draws
Foot is connect with the 68th pin of the microcontroller, and the 5th pin of the main control chip connects with one end of the first resistor
It connects, the other end of the first resistor is connect with the 68th pin of the microcontroller, the 6th pin of the main control chip
It is connect with the 57th pin of the microcontroller, the tenth pin, the 11st pin and the 12nd pin of the main control chip
Respectively it is connect with the 5th pin of the anode of second diode and relay；
First pin of the relay is accessed with the 15th pin and rain brush power supply signal of the main control chip respectively
End connection, the second pin of the relay are connect with the 41st pin of the microcontroller, and the third of the relay is drawn
For foot as rain brush top grade signal output end, the 4th pin of the relay is described as rain brush low grade signal output end
The cathode of second diode is connect with the drain electrode of first metal-oxide-semiconductor, and the source electrode of first metal-oxide-semiconductor passes through the second resistance
Ground connection, the grid of first metal-oxide-semiconductor connect with the cathode of first diode, the anode of first diode with it is described
66th pin of microcontroller connects, and the resistance value of the second resistance is 28k Ω.
In automobile middle control device described in the utility model, the power supply circuit includes transformer, rectifier bridge, the one or three pole
Pipe, switch voltage-stabilizing integrated chip, the first electrolytic capacitor, the second electrolytic capacitor, third capacitance, 3rd resistor, the 4th resistance, third
Zener diode and the 4th diode, one end of one end connection 220V alternating currents of the primary coil of the transformer, the change
The other end of the primary coil of depressor connects the other end of the 220V alternating currents, one end of the secondary coil of the transformer with
One input terminal of the rectifier bridge connects, and another of the other end of the secondary coil of the transformer and the rectifier bridge are defeated
Enter end connection, an output end of the rectifier bridge respectively with the anode of first electrolytic capacitor, third zener diode
Cathode, one end of the 4th resistance are connected with the first pin of switch voltage-stabilizing integrated chip, and the cathode of first electrolytic capacitor connects
The anode on ground, the third zener diode is connect with the base stage of one end of the 3rd resistor and the first triode respectively, institute
The emitter of the other end and the first triode of stating 3rd resistor is grounded, and the other end of the 4th resistance is opened with described respectively
The 5th pin for closing voltage stabilizing integrated chip is connected with one end of third capacitance, the other end of the third capacitance and the described 1st
The collector of pole pipe connects, the third pin ground connection of the switch voltage-stabilizing integrated chip, and the of the switch voltage-stabilizing integrated chip
Four pins are connect with the microcontroller, the second pin of switch voltage-stabilizing integrated chip the moon with the 4th diode respectively
Pole, the second electrolytic capacitor anode connected with microcontroller, the anode of the 4th diode and the cathode of the second electrolytic capacitor are equal
The capacitance of ground connection, the third capacitance is 500pF, and the resistance value of the 4th resistance is 47k Ω.
In automobile middle control device described in the utility model, the power supply circuit further includes the 5th diode, and the described 5th
The anode of diode is connect with the second pin of the switch voltage-stabilizing integrated chip, the cathode of the 5th diode and described the
The anode connection of two electrolytic capacitors, the model S-562 of the 5th diode.
In automobile middle control device described in the utility model, the power supply circuit further includes the 6th diode, and the described 6th
The anode of diode is connect with one end of the 4th resistance, and cathode and the switch voltage-stabilizing of the 6th diode integrate core
First pin of piece connects, the model E-301 of the 6th diode.
In automobile middle control device described in the utility model, first metal-oxide-semiconductor is N-channel MOS pipe, the one or three pole
Pipe is NPN triode.
The automobile middle control device for implementing the utility model, has the advantages that：Include master control core due to setting control circuit
Piece, relay, the first metal-oxide-semiconductor, first resistor, second resistance, the first diode and the second diode, the control circuit relative to
Traditional control circuit, the component used is less, can reduce hardware cost in this way, in addition, second resistance is used for the
The source current of one metal-oxide-semiconductor carries out current-limiting protection, therefore circuit structure is relatively simple, cost is relatively low, the safety of circuit and can
It is higher by property.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of circuit board in the utility model automobile middle control device one embodiment；
Fig. 2 is the circuit diagram of control circuit in the embodiment；
Fig. 3 is the circuit diagram of power supply circuit and microcontroller in the embodiment.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
In the utility model automobile middle control device embodiment, which includes circuit board, and Fig. 1 is the circuit board
Structural schematic diagram.In Fig. 1, which is equipped with control circuit 1, microcontroller and 2 power supply circuits 3, control circuit 1 and power supply electricity
Road 3 is connect with microcontroller 2.
Fig. 2 is the circuit diagram of control circuit in the present embodiment, in Fig. 2, the control circuit 1 include main control chip U1,
Relay J, the first metal-oxide-semiconductor M1, first resistor R1, second resistance R2, the first diode D1 and the second diode D2, wherein main
Control the first pin, second pin, the 7th pin, the 8th pin, the 9th pin, the 13rd pin and the 14th pin of chip U1
Hanging, the third pin ground connection of main control chip U1, the 4th pin of main control chip U1 connects with the 68th pin of microcontroller 2
It connecing, the 5th pin of main control chip U1 is connect with one end of first resistor R1, and the of the other end of first resistor R1 and microcontroller 2
68 pins connect, and the 6th pin of main control chip U1 connect with the 57th pin of microcontroller 2, and the of main control chip U1
Ten pins, the 11st pin and the 12nd pin respectively connect with the 5th pin of the anode of the second diode D2 and relay J
It connects.
The first pin of relay J connects with the 15th pin of main control chip U1 and rain brush power supply signal incoming end Vi respectively
It connects, the second pin of relay J is connect with the 41st pin of microcontroller 2, and the third pin of relay J is as rain brush height
Shelves signal output end H, the 4th pin of relay J are used as rain brush low grade signal output end L, the cathode of the second diode D2 and
The drain electrode of first metal-oxide-semiconductor M1 connects, and the source electrode of the first metal-oxide-semiconductor M1 is grounded by second resistance R2, the grid of the first metal-oxide-semiconductor M1 with
The cathode of first diode D1 connects, and the anode of the first diode D1 is connect with the 66th pin of microcontroller 2.
The control circuit 1 is relative to traditional control circuit, and the component used is less, and circuit structure is relatively simple,
Hardware cost can be reduced in this way.Second resistance R2 is current-limiting resistance, and current limliting is carried out for the source current to the first metal-oxide-semiconductor M1
Protection, therefore the safety and reliability of circuit is higher.It is noted that in the present embodiment, the resistance value of second resistance R2 is
28k Ω, certainly, in practical applications, the resistance value of second resistance R2 can adjust accordingly as the case may be.
It is noted that in the present embodiment, the first metal-oxide-semiconductor M1 is N-channel MOS pipe, certainly, in practical applications, the
One metal-oxide-semiconductor M1 may be P-channel metal-oxide-semiconductor, but at this moment the structure of circuit also will accordingly change.
Fig. 3 is the circuit diagram of power supply circuit and microcontroller in the present embodiment, and in Fig. 3, which includes transformation
Device W, rectifier bridge T, the first triode Q1, switch voltage-stabilizing integrated chip U2, the first electrolytic capacitor C1, the second electrolytic capacitor C2,
Three capacitance C3,3rd resistor R3, the 4th resistance R4, third zener diode D3 and the 4th diode D4, wherein transformer W's
One end of one end connection 220V alternating currents of primary coil, the other end connection 220V alternating currents of the primary coil of transformer W
The other end, one end of the secondary coil of transformer W are connect with an input terminal of rectifier bridge T, the secondary coil of transformer W it is another
One end is connect with another input terminal of rectifier bridge T, an output end of rectifier bridge T respectively with the first electrolytic capacitor C1 just
Pole, the cathode of third zener diode D3, the 4th resistance R4 one end connected with the first pin of switch voltage-stabilizing integrated chip U2,
The cathode of first electrolytic capacitor C1 is grounded, the anode of third zener diode D3 respectively with one end of 3rd resistor R3 and the one or three
The base stage of pole pipe Q1 connects.
The emitter of the other end of 3rd resistor R3 and the first triode Q1 are grounded, the other end difference of the 4th resistance R4
It is connect with one end of the 5th pin of switch voltage-stabilizing integrated chip U2 and third capacitance C3, the other end and first of third capacitance C3
The collector of triode Q1 connects, the third pin ground connection of switch voltage-stabilizing integrated chip U2, and the of switch voltage-stabilizing integrated chip U2
Four pins are connect with microcontroller 2, the second pin of switch voltage-stabilizing integrated chip U2 respectively with the cathode of the 4th diode D4, second
The anode and microcontroller 2 of electrolytic capacitor C2 connects, and the cathode of the anode of the 4th diode D4 and the second electrolytic capacitor C2 are grounded.
The power supply circuit 3 is relative to traditional power supply circuit, and the component used is less, and circuit structure is relatively simple,
Hardware cost can be further decreased in this way.Third capacitance C3 is coupled capacitor, for preventing the first triode Q1 steady with switch
It is current-limiting resistance to press the interference between integrated chip U2, the 4th resistance R4, for the collector current to the first triode Q1 into
Row current-limiting protection, to further enhance the safety and reliability of circuit.It is noted that in the present embodiment, third capacitance
The capacitance of C3 is 500pF, and the resistance value of the 4th resistance R4 is 47k Ω, certainly, in practical applications, the capacitance of third capacitance C3
Value and the resistance value of the 4th resistance R4 can adjust accordingly as the case may be.
In the present embodiment, transformer W constitutes reduction voltage circuit, and rectifier bridge T constitutes rectification circuit, the first electrolytic capacitor C1 and the
Two electrolytic capacitor C2 constitute filter circuit, and switch voltage-stabilizing integrated chip U2 constitutes regulator circuit.Third diode D3 and third electricity
It hinders R3 and constitutes voltage threshold circuit, third capacitance C3 and the 4th resistance R4 constitute delay circuit.In work, the input of 220V alternating currents
Afterwards, electricity is carried out by voltage threshold circuit with after the first electrolytic capacitor C1 once filtering via transformer W decompressions, rectifier bridge T rectifications
Pressure gate sill detect, it is ensured that its voltage can reach on the burning voltage 10V of the 4th diode D4 (zener diode).Hereafter prolong
When 8 milliseconds of circuit delay, the function of starting switch voltage stabilizing integrated chip U2, to realize electric power output voltage 0 arrive 6V step
Variation.By the voltage of voltage stabilizing after the second electrolytic capacitor C2 secondary filterings, it can be used for microcontroller 2.It is arranged in circuit
Threshold circuit can be directed to input voltage and be detected into threshold trip, it is ensured that input voltage can reach the setting electricity of the 4th diode D4
Pressure, while ensuring the stability after control source, avoid the voltage fluctuation of 220V alternating currents and caused by electric power output voltage not
Steady phenomenon improves the reliability of 2 electrification reset of microcontroller.Delay circuit is set in circuit, after may make 8 milliseconds of circuit time delay
The function of starting switch voltage stabilizing integrated chip U2 realizes that electric power output voltage 0 arrives the Spline smoothing of 6V, while by avoiding voltage
Wave time, to avoid, voltage fluctuation is formed by unstability, it is ensured that 2 electrification reset process of microcontroller completely succeeds.
It is noted that in the present embodiment, the first triode Q1 is NPN triode, certainly, in practical applications, the
One triode Q1 may be PNP type triode, but at this moment the structure of circuit also will accordingly change.
In the present embodiment, which further includes the 5th diode D5, the anode and switch voltage-stabilizing of the 5th diode D5
The second pin of integrated chip U2 connects, and the cathode of the 5th diode D5 is connect with the anode of the second electrolytic capacitor C2.Five or two
Pole pipe D5 is Current Limiting Diodes, and current limliting is carried out for the branch between switch voltage-stabilizing integrated chip U2 and the second electrolytic capacitor C2
Protection, further to enhance the safety and reliability of circuit.It is noted that in the present embodiment, the 5th diode D5
Model S-562, certainly, in practical applications, the 5th diode D5 can also select other models to have similar functions
Diode.
In the present embodiment, which further includes the 6th diode D6, the anode and the 4th resistance of the 6th diode D6
One end of R4 connects, and the cathode of the 6th diode D6 is connect with the first pin of switch voltage-stabilizing integrated chip U2.6th diode
D6 is Current Limiting Diodes, for carrying out current-limiting protection to the branch where the first pin of switch voltage-stabilizing integrated chip U2, so that
The safety and reliability for obtaining circuit is further enhanced.It is noted that in the present embodiment, the type of the 6th diode D6
Number be E-301, certainly, in practical applications, the 6th diode D6 can also select other models have similar functions two poles
Pipe.
In short, in the present embodiment, for above-mentioned control circuit 1 relative to traditional control circuit, the component used is less,
Circuit structure is relatively simple, can reduce hardware cost in this way.In addition, current-limiting resistance is equipped in the control circuit 1, therefore circuit
Safety and reliability it is higher.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (5)
1. a kind of automobile middle control device, which is characterized in that including circuit board, the circuit board be equipped with control circuit, microcontroller and
Power supply circuit, the control circuit and power supply circuit are connect with the microcontroller, the control circuit include main control chip, after
Electric appliance, the first metal-oxide-semiconductor, first resistor, second resistance, the first diode and the second diode, the first of the main control chip draws
Foot, second pin, the 7th pin, the 8th pin, the 9th pin, the 13rd pin and the 14th pin are hanging, the master control
The third pin of chip is grounded, and the 4th pin of the main control chip is connect with the 68th pin of the microcontroller, described
5th pin of main control chip is connect with one end of the first resistor, the other end of the first resistor and the microcontroller
68th pin connects, and the 6th pin of the main control chip is connect with the 57th pin of the microcontroller, the master
Control the tenth pin, the 11st pin and the 12nd pin of chip respectively with the anode of second diode and relay
5th pin connects；
First pin of the relay connects with the 15th pin of the main control chip and rain brush power supply signal incoming end respectively
It connects, the second pin of the relay is connect with the 41st pin of the microcontroller, and the third pin of the relay is made
For rain brush top grade signal output end, the 4th pin of the relay is as rain brush low grade signal output end, and described second
The cathode of diode is connect with the drain electrode of first metal-oxide-semiconductor, and the source electrode of first metal-oxide-semiconductor is connect by the second resistance
Ground, the grid of first metal-oxide-semiconductor are connect with the cathode of first diode, anode and the list of first diode
66th pin of piece machine connects, and the resistance value of the second resistance is 28k Ω.
2. automobile middle control device according to claim 1, which is characterized in that the power supply circuit include transformer, rectifier bridge,
First triode, switch voltage-stabilizing integrated chip, the first electrolytic capacitor, the second electrolytic capacitor, third capacitance, 3rd resistor, the 4th
Resistance, third zener diode and the 4th diode, the one of one end connection 220V alternating currents of the primary coil of the transformer
End, the other end of the primary coil of the transformer connect the other end of the 220V alternating currents, the secondary wire of the transformer
One end of circle is connect with an input terminal of the rectifier bridge, the other end of the secondary coil of the transformer and the rectifier bridge
The connection of another input terminal, an output end of the rectifier bridge is steady with the anode of first electrolytic capacitor, third respectively
The cathode of diode, one end of the 4th resistance is pressed to be connected with the first pin of switch voltage-stabilizing integrated chip, the first electrolysis electricity
The cathode of appearance is grounded, the anode of the third zener diode base with one end of the 3rd resistor and the first triode respectively
Pole connects, and the emitter of the other end of the 3rd resistor and the first triode is grounded, the other end point of the 4th resistance
Do not connect with one end of the 5th pin of the switch voltage-stabilizing integrated chip and third capacitance, the other end of the third capacitance with
The collector of first triode connects, the third pin ground connection of the switch voltage-stabilizing integrated chip, the switch voltage-stabilizing collection
It is connect with the microcontroller at the 4th pin of chip, the second pin of the switch voltage-stabilizing integrated chip is respectively with the described 4th
The cathode of diode, the second electrolytic capacitor anode connected with microcontroller, the anode of the 4th diode and second electrolysis electricity
The cathode of appearance is grounded, and the capacitance of the third capacitance is 500pF, and the resistance value of the 4th resistance is 47k Ω.
3. automobile middle control device according to claim 2, which is characterized in that the power supply circuit further includes the 5th diode,
The anode of 5th diode is connect with the second pin of the switch voltage-stabilizing integrated chip, the cathode of the 5th diode
It is connect with the anode of second electrolytic capacitor, the model S-562 of the 5th diode.
4. automobile middle control device according to claim 3, which is characterized in that the power supply circuit further includes the 6th diode,
The anode of 6th diode is connect with one end of the 4th resistance, and the cathode of the 6th diode and the switch are steady
Press the first pin connection of integrated chip, the model E-301 of the 6th diode.
5. the automobile middle control device according to claim 2 to 4 any one, which is characterized in that first metal-oxide-semiconductor is N ditches
Road metal-oxide-semiconductor, first triode are NPN triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820195474.XU CN208021368U (en) | 2018-02-05 | 2018-02-05 | Automobile middle control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820195474.XU CN208021368U (en) | 2018-02-05 | 2018-02-05 | Automobile middle control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208021368U true CN208021368U (en) | 2018-10-30 |
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ID=63903845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820195474.XU Active CN208021368U (en) | 2018-02-05 | 2018-02-05 | Automobile middle control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208021368U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020098281A1 (en) * | 2018-11-16 | 2020-05-22 | 孙敏 | Driving circuit controller and driving circuit controller for electric bicycle |
-
2018
- 2018-02-05 CN CN201820195474.XU patent/CN208021368U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020098281A1 (en) * | 2018-11-16 | 2020-05-22 | 孙敏 | Driving circuit controller and driving circuit controller for electric bicycle |
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