CN207535698U - A kind of automobile combination meter - Google Patents
A kind of automobile combination meter Download PDFInfo
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- CN207535698U CN207535698U CN201721582834.3U CN201721582834U CN207535698U CN 207535698 U CN207535698 U CN 207535698U CN 201721582834 U CN201721582834 U CN 201721582834U CN 207535698 U CN207535698 U CN 207535698U
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Abstract
The utility model discloses a kind of automobile combination meter, including controller, signal conditioning circuit module, analog-to-digital conversion module, sound-light alarm indicating module, presentation of information drive module, information display module and 5V voltage stabilizing circuit modules；Wherein, signal conditioning circuit module includes speed signal modulate circuit and oil mass signal modulate circuit；The signal output end of analog-to-digital conversion module and the signal input part of controller connect, first signal output end of controller is connected with the signal input part of acousto-optic police instruction module, the second signal output terminal of controller is connected with the signal input part of presentation of information drive module, the signal output end of presentation of information drive module is connected with the signal input part of information display module, and the power output end of 5V voltage stabilizing circuit modules is connected with the power input of controller.This automobile combination meter can carry out digital display to each item data of vehicle travel process, have many advantages, such as that information content foot, precision is high, occupy little space, reliability is high and it is good to read effect data.
Description
Technical field
The utility model is related to technical field of automotive electronics, particularly a kind of automobile combination meter.
Background technology
Automobile instrument is the Important Platform of intuitive reflection vehicle situation, information that driver is reflected by automobile instrument and
When, accurately judge the operating condition of automobile, so as to ensure that the reliable and secure traveling of automobile.Speedometer, revolution counter, machine
Oil pressure table, water-thermometer, fuel gauge, charging table etc. are necessary driving information, and traditional automobile instrument uses electricapparatus formula,
Simulative display is realized to speed, rotating speed, oil mass information etc., but is information the defects of this kind of instrument by pointer, dial
Amount is less, precision is low, occupied space is big, poor reliability and reading effect data are poor so that driver is easy in driving procedure
It feels fatigue, high request of the contemporary people for various aspects such as vehicle safety, comfort, convenience far can not be met.
Utility model content
To solve problems of the prior art, the purpose of this utility model is to provide a kind of automobile combination meter, this
Automobile combination meter can carry out digital display to each item data of vehicle travel process, have information content foot, precision height, occupy
Space is small, reliability is high and reads the advantages that effect data is good.
To achieve the above object, the technical solution adopted in the utility model is：A kind of automobile combination meter, including control
Device, signal conditioning circuit module, analog-to-digital conversion module, sound-light alarm indicating module, presentation of information drive module, presentation of information mould
Block and 5V voltage stabilizing circuit modules；Wherein, signal conditioning circuit module includes speed signal modulate circuit and oil mass signal conditioning electricity
Road, the speed signal modulate circuit have the signal input part for receiving speed signal input, the letter of speed signal modulate circuit
Number output terminal is connect with the first signal input part of the analog-to-digital conversion module, and the oil mass signal modulate circuit, which has, receives oil
Measure the signal input part of signal input, the second letter of the signal output end of oil mass signal modulate circuit and the analog-to-digital conversion module
The connection of number input terminal；The signal output end of analog-to-digital conversion module is connect with the signal input part of the controller, and the of controller
One signal output end is connected with the signal input part of the sound-light alarm indicating module, the second signal output terminal of controller and institute
State the signal input part connection of presentation of information drive module, the signal output end and information display module of presentation of information drive module
Signal input part connection, the power output end of the 5V voltage stabilizing circuit modules connects with the power input of controller.
In the utility model, signal conditioning circuit module is other than speed signal modulate circuit and oil mass signal modulate circuit
At least further include key signal modulate circuit, gate signal modulate circuit, tach signal modulate circuit, water temperature signal modulate circuit,
Belt signal modulate circuit, machine oil signal conditioning circuit and ABS (Anti-locked Braking System：Anti-lock
Brake system) one or more of signal conditioning circuit circuit, speed signal modulate circuit and oil mass signal modulate circuit will
The speed signal and oil mass signal that analog sensor transmits are improved, and analog signal is amplified, and are buffered or fixed
Mark, can be suitable for the input of analog-to-digital conversion module, the external vehicle-speed signal and oil mass that analog-to-digital conversion module will receive
Signal is converted to digital signal, makes the precision higher of each signal, then digital signal is sent to the analysis that data are carried out in controller
With processing, show in real time by the driving of presentation of information drive module and in information display module；Sound-light alarm indicating module
Speed dial illumination, the illumination of speed pointer, speed dial illumination, the illumination of rotating speed pointer, liquid crystal bias light can at least be driven
Illumination, dipped headlight, high beam, Rear Fog Lamp, antitheft flicker, braking liquid level indicator light, parking brake indicator light, engine failure alarm
The work of one or more of lamp, charge and discharge indicator light, left-hand bend lamp, right-hand bend lamp and buzzer warning device etc., control
Device obtains the state of each lamps and lanterns simultaneously, shows in real time by the driving of presentation of information drive module and in information display module；
In this way, driver can judge the operating condition of automobile, and the letter reflected accurately and in time by the information that this combination instrument reflects
Breath amount foot, precision are simulated instrument higher relative to traditional electromechanical, are more convenient by the digital display of information display module
The reading of driver can make correct action before emergency situations occur for automobile.
As further improvement of the utility model, the speed signal modulate circuit include the first capacitance, the second capacitance,
First resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the first diode, the second diode and
NPN type triode；External vehicle-speed signal first through the first capacity earth, then through first resistor respectively with the first diode and second
The cathode connection of diode, the plus earth of the second diode, the anode of the first diode are opened through second resistance and external key
OFF signal connects, and the anode of the first diode is connected through 3rd resistor with the base stage of NPN type triode, the base of NPN type triode
The 4th resistance eutral grounding of pole, the emitter ground connection of NPN type triode, the collector of NPN type triode through the 5th resistance with it is described
The output terminal connection of 5V voltage stabilizing circuit modules, the collector of NPN type triode is through the 6th resistance and the analog-to-digital conversion module
Input terminal connects, and the input terminal of analog-to-digital conversion module is through the second capacity earth.
When driver opens automobile, external key switching signal is high level, and the first diode is on shape at this time
State, the base stage that speed signal is input to NPN type triode are amplified, the collector connection 5V regulator circuits of NPN type triode
The output terminal of module, it is ensured that NPN type triode is operated in magnifying state, and second resistance, 3rd resistor and the 4th resistance is put
Big circuit provides quiescent point, and the first capacitance and the second capacitance can realize the purpose of separated by direct communication, filter out AC signal, make letter
Number purer, precision higher.In automobile combination meter design, key signal modulate circuit, gate signal modulate circuit, speed signal
Modulate circuit, tach signal modulate circuit, water temperature signal modulate circuit, belt signal modulate circuit, machine oil signal condition electricity
Road and ABS (Anti-locked Braking System：Anti-lock braking system) speed can be used in signal conditioning circuit
The circuit structure of signal conditioning circuit is handled, and circuit structure is simple, and the purity of signal and precision are high after conditioning, convenient for modulus
The processing of modular converter and the analysis of controller.
As further improvement of the utility model, the oil mass signal modulate circuit include third capacitance, the 4th capacitance,
5th capacitance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the 11st resistance, the 12nd resistance, the 13rd resistance
With third diode；External oil mass signal first respectively through third capacitance and the 4th capacity earth, then through the 7th resistance, the 8th electricity
The input terminal of resistance, the 9th resistance and analog-to-digital conversion module connects, and the tie point of the 7th resistance and the 8th resistance is respectively through the tenth electricity
Resistance, the 11st resistance, the 12nd resistance, the 13rd resistance are connect with external key switching signal, the 8th resistance and the 9th resistance
Tie point connect with the cathode of third diode, the plus earth of third diode, the input terminal of analog-to-digital conversion module is through
Five capacity earths.
Third capacitance, the 4th capacitance and the 5th capacitance can filter out the AC influence signal in oil mass signal, in oil mass signal
Not being amplified using triode to signal in modulate circuit, three capacitances are only only used, seven resistance, one two
Pole pipe, of low cost, circuit structure is simpler, and it is easy to realize.
As further improvement of the utility model, described information display module include LCD display unit, stepper motor,
Speed display unit and rotating speed display unit, the signal input part of the LCD display unit and described information driver module
The connection of the first signal output end, the signal input part of the stepper motor and the second signal of described information driver module
Output terminal connects, and the first signal output end and the speed of speed display unit of stepper motor show that signal-arm connects, stepping
The second signal output terminal of motor is connected with the rotating speed signal-arm of rotating speed display unit；Wherein, the stepper motor is V I
The more magnetic pole stepper motors of D78.
Information display module is simple in structure, and the functional status of current automobile each section just can be obtained by LCD display unit,
Speed and rotating speed can be driven by stepper motor the speed pointer of speed display unit and the rotating speed pointer of rotating speed display unit into
Row instruction, the space occupied are small；And the more magnetic pole stepper motors of VI D78 have low cost, high torsion, low noise, high rotating speed and resist
The characteristics of vibration ability is strong particularly suitable for driving automobile speed signal and the pointer of tach signal, makes its precision higher.
As further improvement of the utility model, which further includes what is communicated to connect with the controller
Key wakeup module and program download interface.Key wakeup module is mainly used for wakeup of automotive combination instrument, easy to operate, side
Just, program download interface can be used for human-computer interaction.
As further improvement of the utility model, the controller is MC9S12HA chips.
The beneficial effects of the utility model are：
1st, driver can judge the operating condition of automobile accurately and in time by the information that this combination instrument reacts, and anti-
The information content foot answered, precision simulate instrument higher relative to traditional electromechanical, pass through the digital display of information display module
The reading of more convenient driver can make correct action before emergency situations occur for automobile.
2nd, each signal conditioning circuit is simple in structure, of low cost, easy to implement, and the purity of signal and precision are high after conditioning,
Convenient for the processing of analog-to-digital conversion module and the analysis of controller.
3rd, information display module is simple in structure, and the space occupied is small, and the more magnetic pole stepper motors of VI D78 have low cost, height
The characteristics of torsion, low noise, strong high rotating speed and antivibration kinetic force, particularly suitable for driving automobile speed signal and tach signal
Pointer, make its precision higher.
4th, key wakeup module is mainly used for wakeup of automotive combination and instrument, and simple, convenient, program download interface can
For human-computer interaction.
Description of the drawings
Fig. 1 is the structural schematic block diagram of the utility model embodiment；
Fig. 2 is the circuit diagram of speed signal modulate circuit in the utility model embodiment；
Fig. 3 is the circuit diagram of oil mass signal modulate circuit in the utility model embodiment；
Reference numeral：
10- controllers, 20- signal conditioning circuit modules, 21- speed signal modulate circuits, 21a- speed signal, 22- oil
Measure signal conditioning circuit, 22a- oil mass signals, 30- analog-to-digital conversion modules, 40- sound-light alarm indicating modules, the drive of 50- presentation of information
Dynamic model block, 60- information display modules, 61-LCD display units, 62- speed display units, 63- rotating speed display units, 64- steppings
Motor, 70-5V voltage stabilizing circuit modules, 80- key wakeup modules, 90- program download interfaces, I GN_VCC- key switch signals,
The first capacitances of C1-, the second capacitances of C2, C3- third capacitances, the 4th capacitances of C4-, the 5th capacitances of C5-, R1- first resistors, R2-
Two resistance, R3- 3rd resistors, the 4th resistance of R4-, the 5th resistance of R5-, the 6th resistance of R6-, the 7th resistance of R7-, the 8th electricity of R8-
Resistance, the 9th resistance of R9-, the tenth resistance of R10-, the 11st resistance of R11-, the 12nd resistance of R12-, the 13rd resistance of R13-, D1-
First diode, the second diodes of D2-, D3- third diodes, Q1-NPN type triodes.
Specific embodiment
The embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.
Embodiment
In one of the embodiments, as shown in Figure 1, Figure 2 and Figure 3, a kind of automobile combination meter, including controller 10,
Signal conditioning circuit module 20, analog-to-digital conversion module 30, sound-light alarm indicating module 40, presentation of information drive module 50, information
Display module 60 and 5V voltage stabilizing circuit modules 70；Wherein, signal conditioning circuit module 20 includes 21 He of speed signal modulate circuit
Oil mass signal modulate circuit 22, the speed signal modulate circuit 21 have the signal input part for receiving speed signal 21a inputs,
The signal output end of speed signal modulate circuit 21 is connect with the first signal input part of the analog-to-digital conversion module 30, the oil
Measuring signal conditioning circuit 22 has the signal input part for receiving oil mass signal 22a inputs, the signal of oil mass signal modulate circuit 22
Output terminal is connect with the second signal input terminal of the analog-to-digital conversion module 30；The signal output end of analog-to-digital conversion module 30 and institute
The signal input part connection of controller 10 is stated, the first signal output end of controller 10 and the sound-light alarm indicating module 40
Signal input part connects, and the second signal output terminal of controller 10 and the signal input part of described information driver module 50 connect
It connects, the signal output end of presentation of information drive module 50 is connected with the signal input part of information display module 60, the 5V voltage stabilizings
The power output end of circuit module 70 is connected with the power input of controller 10.
In the utility model, signal conditioning circuit module 20 is in addition to speed signal modulate circuit 21 and oil mass signal conditioning electricity
Key signal modulate circuit, gate signal modulate circuit, tach signal modulate circuit, water temperature signal conditioning are at least further included outside road 22
Circuit, belt signal modulate circuit, machine oil signal conditioning circuit and ABS (Anti-locked Braking System：It is anti-
Locking brake system) one or more of signal conditioning circuit circuit, speed signal modulate circuit 21 and oil mass signal conditioning
Circuit 22 improves the speed signal 21a and oil mass signal 22a that analog sensor transmits, and analog signal is put
Greatly, it buffers or calibrates, the input of analog-to-digital conversion module 30 can be suitable for, analog-to-digital conversion module 30 is outer by what is received
Speed signal 21a and oil mass signal 22a are converted to digital signal in portion, make the precision higher of each signal, then digital signal is sent to
The analysis and processing of data are carried out in controller 10, by the driving of presentation of information drive module 50 and in real time in presentation of information mould
It is shown on block 60；Sound-light alarm indicating module 40 can at least drive speed dial illumination, the illumination of speed pointer, speed dial
Illumination, the illumination of rotating speed pointer, liquid crystal ambient light illumination, dipped headlight, high beam, Rear Fog Lamp, antitheft flicker, braking liquid level instruction
Lamp, parking brake indicator light, engine failure alarm lamp, charge and discharge indicator light, left-hand bend lamp, right-hand bend lamp and buzzer warning dress
Work, controller 10 one or more of is put etc. to obtain the state of each lamps and lanterns simultaneously, pass through presentation of information drive module 50
It drives and is shown in information display module 60 in real time；In this way, driver can by information that this combination instrument reflects in time, it is accurate
Really judge the operating condition of automobile, and the information content foot reflected, precision are simulated instrument higher relative to traditional electromechanical, led to
The digital display for crossing information display module is more convenient the reading of driver, can be made before emergency situations occur for automobile correct
Action.
In another embodiment, the speed signal modulate circuit 21 includes the first capacitance C1, the second capacitance C2, the
One resistance R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the first diode D1,
Second diode D2 and NPN type triode Q1；External vehicle-speed signal 21a is grounded first through the first capacitance C1, then through first resistor
Cathodes of the R1 respectively with the first diode D1 and the second diode D2 is connect, the plus earth of the second diode D2, the one or two pole
The anode of pipe D1 is connected through second resistance R2 with external key switching signal I GN_VCC, and the anode of the first diode D1 is through third
Resistance R3 is connected with the base stage of NPN type triode Q1, and the base stage of NPN type triode Q1 is grounded through the 4th resistance R4, three pole of NPN type
The emitter ground connection of pipe Q1, the collector of NPN type triode Q1 are defeated through the 5th resistance R5 and the 5V voltage stabilizing circuit modules 70
Outlet connects, and the collector of NPN type triode Q1 is connect through the 6th resistance R6 with the input terminal of the analog-to-digital conversion module 30, mould
The input terminal of number modular converter 30 is grounded through the second capacitance C2.
When driver opens automobile, external key switching signal I GN_VCC are high level, at this time the first diode D1
In the conduction state, the base stage that speed signal 21a is input to NPN type triode Q1 is amplified, the current collection of NPN type triode Q1
The output terminal of pole connection 5V voltage stabilizing circuit modules 70, it is ensured that NPN type triode Q1 is operated in magnifying state, second resistance R2,
3rd resistor R3 and the 4th resistance R4 provides quiescent point for amplifying circuit, the first capacitance C1 and the second capacitance C2 can realize every
The straight-through purpose handed over, filters out AC signal, makes signal purer, precision higher.In automobile combination meter design, key signal tune
Manage circuit, gate signal modulate circuit, speed signal modulate circuit, tach signal modulate circuit, water temperature signal modulate circuit, safety
Band signal modulate circuit, machine oil signal conditioning circuit and ABS (Ant i-l ocked Braki ngSystem：Anti-lock is stopped
Vehicle system) signal conditioning circuit can be used the circuit structure of speed signal modulate circuit 21 and handled, and circuit structure is simple,
The purity of signal and precision are high after conditioning, convenient for the processing of analog-to-digital conversion module 30 and the analysis of controller 10.
In another embodiment, the oil mass signal modulate circuit 22 includes third capacitance C3, the 4th capacitance C4, the
Five capacitance C5, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, the 11st resistance R11, the 12nd electricity
Hinder R12, the 13rd resistance R13 and third diode D3；External oil mass signal 22a is first respectively through the electricity of third capacitance C3 and the 4th
Hold C4 ground connection, then connect through the 7th resistance R7, the 8th resistance R8, the 9th resistance R9 with the input terminal of analog-to-digital conversion module 30, the
The tie point of seven resistance R7 and the 8th resistance R8 are respectively through the tenth resistance R10, the 11st resistance R11, the 12nd resistance R12,
13 resistance R13 are connect with external key switching signal I GN_VCC, the tie point and of the 8th resistance R8 and the 9th resistance R9
The cathode connection of three diode D3, the plus earth of third diode D3, the input terminal of analog-to-digital conversion module 30 is through the 5th capacitance
Ground connection.
Third capacitance C3, the 4th capacitance C4 and the 5th capacitance C5 can filter out the AC influence signal in oil mass signal 22a,
Not being amplified using triode to signal in oil mass signal modulate circuit 22, three capacitances are only only used, seven
Resistance, a diode, of low cost, circuit structure is simpler, and it is easy to realize.
In another embodiment, described information display module 60 includes LCD display unit 61, stepper motor 64, vehicle
Fast display unit 62 and rotating speed display unit 63, signal input part and described information the display driving of the LCD display unit 61
The first signal output end connection of module 60, the signal input part of the stepper motor 64 and described information driver module 50
The connection of second signal output terminal, the speed of the first signal output end of stepper motor 64 and speed display unit 62 shows pointer
Signal connects, and the second signal output terminal of stepper motor 64 is connected with the rotating speed signal-arm of rotating speed display unit 63；Wherein, institute
Stepper motor 64 is stated as the more magnetic pole stepper motors of VI D78.
Information display module 60 is simple in structure, and the function of current automobile each section just can be obtained by LCD display unit 61
State, speed and rotating speed can drive the speed pointer of speed display unit 62 and rotating speed display unit 63 by stepper motor 64
Rotating speed pointer is indicated that the space occupied is small；And the more magnetic pole stepper motors of VI D78 have low cost, high torsion, low noise,
The characteristics of high rotating speed and strong antivibration kinetic force, particularly suitable for driving automobile speed signal and the pointer of tach signal, makes it
Precision higher.
In another embodiment, which further includes the button communicated to connect with the controller 10 and calls out
Module 80 of waking up and program download interface 90.Key wakeup module 80 is mainly used for wakeup of automotive combination instrument, easy to operate, side
Just, program download interface 90 can be used for human-computer interaction.
In another embodiment, the controller is MC9S12HA chips.
Embodiment described above only expresses specific embodiment of the present utility model, and description is more specific and detailed,
But it should not be interpreted as limiting the scope of the present invention.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.
Claims (6)
1. a kind of automobile combination meter, which is characterized in that including controller, signal conditioning circuit module, analog-to-digital conversion module, sound
Light police instruction module, presentation of information drive module, information display module and 5V voltage stabilizing circuit modules；Wherein, signal condition electricity
Road module includes speed signal modulate circuit and oil mass signal modulate circuit, and the speed signal modulate circuit, which has, receives speed
The signal input part of signal input, the first signal of the signal output end of speed signal modulate circuit and the analog-to-digital conversion module
Input terminal connects, and the oil mass signal modulate circuit has the signal input part for receiving oil mass signal input, oil mass signal conditioning
The signal output end of circuit is connect with the second signal input terminal of the analog-to-digital conversion module；The signal output of analog-to-digital conversion module
End is connect with the signal input part of the controller, the first signal output end of controller and the sound-light alarm indicating module
Signal input part connects, and the second signal output terminal of controller is connected with the signal input part of described information driver module,
The signal output end of presentation of information drive module is connected with the signal input part of information display module, the 5V voltage stabilizing circuit modules
Power output end connected with the power input of controller.
2. automobile combination meter according to claim 1, which is characterized in that the speed signal modulate circuit includes first
Capacitance, the second capacitance, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the one or two pole
Pipe, the second diode and NPN type triode；External vehicle-speed signal first through the first capacity earth, then through first resistor respectively with
The cathode of first diode and the second diode connects, and the plus earth of the second diode, the anode of the first diode is through second
Resistance is connected with external key switching signal, and the anode of the first diode is connected through 3rd resistor with the base stage of NPN type triode,
The base stage of NPN type triode is grounded through the 4th resistance eutral grounding, the emitter of NPN type triode, the collector warp of NPN type triode
5th resistance is connect with the output terminal of the 5V voltage stabilizing circuit modules, the collector of NPN type triode through the 6th resistance with it is described
The input terminal connection of analog-to-digital conversion module, the input terminal of analog-to-digital conversion module is through the second capacity earth.
3. automobile combination meter according to claim 1, which is characterized in that the oil mass signal modulate circuit includes third
Capacitance, the 4th capacitance, the 5th capacitance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the 11st resistance, the 12nd
Resistance, the 13rd resistance and third diode；External oil mass signal is first respectively through third capacitance and the 4th capacity earth, then pass through
7th resistance, the 8th resistance, the 9th resistance and analog-to-digital conversion module input terminal connect, the connection of the 7th resistance and the 8th resistance
Point is connect respectively through the tenth resistance, the 11st resistance, the 12nd resistance, the 13rd resistance with external key switching signal, and the 8th
Resistance is connect with the tie point of the 9th resistance with the cathode of third diode, the plus earth of third diode, analog-to-digital conversion mould
The input terminal of block is through the 5th capacity earth.
4. automobile combination meter according to claim 1, which is characterized in that described information display module is shown including LCD
Unit, stepper motor, speed display unit and rotating speed display unit, the signal input part of the LCD display unit and the letter
Cease the first signal output end connection of driver module, signal input part and described information the display driving of the stepper motor
The second signal output terminal connection of module, the first signal output end of stepper motor and the speed of speed display unit show pointer
Signal connects, and the second signal output terminal of stepper motor is connected with the rotating speed signal-arm of rotating speed display unit；Wherein, the step
Stepper motor is the more magnetic pole stepper motors of VID78.
5. automobile combination meter according to claim 1, which is characterized in that the automobile combination meter further includes and the control
The key wakeup module and program download interface of device communication connection processed.
6. automobile combination meter according to claim 1, which is characterized in that the controller is MC9S12HA chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721582834.3U CN207535698U (en) | 2017-11-23 | 2017-11-23 | A kind of automobile combination meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721582834.3U CN207535698U (en) | 2017-11-23 | 2017-11-23 | A kind of automobile combination meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207535698U true CN207535698U (en) | 2018-06-26 |
Family
ID=62614708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721582834.3U Expired - Fee Related CN207535698U (en) | 2017-11-23 | 2017-11-23 | A kind of automobile combination meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207535698U (en) |
-
2017
- 2017-11-23 CN CN201721582834.3U patent/CN207535698U/en not_active Expired - Fee Related
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Granted publication date: 20180626 Termination date: 20211123 |