CN209070364U - A kind of vehicle diagnosis instrument with prompt and illumination functions - Google Patents
A kind of vehicle diagnosis instrument with prompt and illumination functions Download PDFInfo
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- CN209070364U CN209070364U CN201920016016.XU CN201920016016U CN209070364U CN 209070364 U CN209070364 U CN 209070364U CN 201920016016 U CN201920016016 U CN 201920016016U CN 209070364 U CN209070364 U CN 209070364U
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Abstract
A kind of vehicle diagnosis instrument with prompt and illumination functions, with voltage detecting circuit, temperature sensing circuit, automatic lighting circuit, voltage detecting circuit, two headlamps, temperature sensing circuit, automatic lighting circuit are mounted on the internal circuit board of vehicle failure examining-repairing instrument ontology, and connected through conducting wire, the front end light-emitting surface of two headlamps is located in the middle part of upper shell in the aperture of front and rear sides two.The utility model lithium storage battery voltage be lower than 5V when, light emitting diode can obtain electroluminescence give user prompt charge in time.When CPU breaks down the just raising extremely of initial stage temperature, user's prompt can be not only given by lumination of light emitting diode, moreover it is possible to it is automatic over time to disconnect whole board powers, prevent fault spread.When outdoor application light is bad, meeting automatic illuminating is connected convenient for users to reading the interface of data and vehicle failure examining-repairing instrument ontology data line on display screen with the data output socket of master control borad on automobile.
Description
Technical field
The utility model relates to automotive service equipement field, especially a kind of Auto analyzer with prompt and illumination functions
Device.
Background technique
With the development of the automobile industry, also more and more applied to the sophisticated equipment of auto repair, such as vehicle failure inspection
Repairing instrument is exactly an innovation in automotive check maintenance industry development process, is the integrated of Modern Vehicle Repair detection technique,
In use, being inserted into the data output socket of master control borad on automobile by its data line, can read automobile includes engine system
The data code of system, Transmission System, slip control system etc., and then the fault data of automobile intuitively is obtained, it is subsequent
It is targetedly repaired, improves maintenance efficiency, save maintenance cost.
Vehicle failure examining-repairing instrument relies primarily on its internal lithium storage battery power supply, therefore is filled before lithium storage battery is without electricity
Electricity is the premise for guaranteeing vehicle failure examining-repairing instrument and working normally；The essential core component of vehicle failure examining-repairing instrument is internal circuit board
On CPU, after CPU peripheral cell etc. goes wrong or CPU itself goes wrong, will lead to vehicle failure examining-repairing instrument can not
Normal use.
Existing vehicle failure examining-repairing instrument does not have lithium storage battery charge prompting function, therefore, vehicle failure in use
It will cause and be not available when examining-repairing instrument is without electricity, make troubles to user；Existing vehicle failure examining-repairing instrument does not have CPU guarantor yet
Protection circuit, have when CPU itself or peripheral cell break down causes CPU to damage in this way, and then vehicle failure examining-repairing instrument occurs
Can not normal use the problem of, vehicle failure examining-repairing instrument in use to automobile carry out fault detection when, especially night by
The weak influence of interior light can impact the data for reading display screen, and master control borad on data line and automobile
Data jack connection when, by light is influenced also can to user operate make troubles, if such case vehicle generation
Failure can not provide illumination, and when maintenance sites are outside maintenance factory (for example night maintenance personal carries out the bad vehicle in roadside
Detection), it but will make troubles to the operation of operator.
Utility model content
In order to overcome existing vehicle failure examining-repairing instrument to be limited by its structure, it can not provide that lithium storage battery is under-voltage, cpu fault mentions
Show, it is inconvenient to user's bring that illumination functions can not be automatically provided, and easily cause vehicle failure examining-repairing instrument failure propagation
The drawbacks of, the utility model is provided with voltage detecting circuit, temperature sensing circuit, automatic lighting circuit etc., in use,
When lithium storage battery is under-voltage to be needed to charge, voltage detecting circuit can be given user's prompt by hair LED lighting and be filled in time
Electricity, when CPU breaks down the just raising extremely of initial stage temperature, temperature sensing circuit can not only be given by lumination of light emitting diode
User's prompt, moreover it is possible to it is automatic over time to disconnect whole board powers, fault spread is prevented, in outdoor application light
When line is bad, the headlamp of automatic lighting circuit meeting turn on automatically upper part of the housing rear and front end, convenient for users to reading display screen
Data on curtain, moreover it is possible to convenient for users to the interface of data line is connected with the data output socket of master control borad on automobile, by
This, which reaches, brings convenience to users, and reduces a kind of vehicle diagnosis with prompt and illumination functions of failure propagation
Instrument.
The utility model technical solution used by its technical problem of determining is:
A kind of vehicle diagnosis instrument with prompt and illumination functions, including vehicle failure examining-repairing instrument ontology, headlamp,
Be characterized in that also have voltage detecting circuit, temperature sensing circuit, automatic lighting circuit, voltage detecting circuit, two headlamps,
Temperature sensing circuit, automatic lighting circuit are mounted on the internal circuit board of vehicle failure examining-repairing instrument ontology, two headlamps
Front end light-emitting surface is located in the middle part of the upper shell of vehicle failure examining-repairing instrument ontology in the aperture of front and rear sides two, voltage detecting
Circuit anode power input is connected with the inside lithium storage battery anode of vehicle failure examining-repairing instrument ontology through conducting wire, vehicle failure inspection
The power switch other end for repairing instrument ontology is connected with temperature sensing circuit, automatic lighting circuit cathode power supply input terminal through conducting wire,
The cathode power supply output end of temperature sensing circuit and the internal circuit board general supply input anode of vehicle failure examining-repairing instrument ontology
It is connected through conducting wire, the cathode power supply input terminal of the cathode power supply output end of automatic lighting circuit and two headlamps connects through conducting wire
It connects, inside negative electrode of lithium accumulator and voltage detecting circuit, two headlamps, the temperature detection electricity of vehicle failure examining-repairing instrument ontology
Road, automatic lighting circuit negative power supply input terminal are connected through conducting wire.
The headlamp can also use light emitting diode.
The voltage detecting circuit includes adjustable resistance, resistance, NPN triode and light emitting diode, therebetween through circuit board
Connection, first resistance one end connect with adjustable resistance one end, second resistance one end, the adjustable resistance other end and first
NPN transistor base connection, first NPN triode collector and first resistance other end, second NPN transistor base
Connection, second NPN triode collector are connected with light emitting diode cathode, and light emitting diode anode and second resistance are another
End connection, first NPN triode emitter and second NPN triode emitter connection, the light-emitting surface position of light emitting diode
On the inside of first aperture of the preceding upper end left part of the shell of vehicle diagnosis instrument ontology.
The temperature sensing circuit includes time controller module, relay, resistance, temp probe and NPN triode, hair
Optical diode is connected through wiring therebetween, and two contacts are open in usual, first resistance one end and first inside temp probe
Relay cathode power supply input terminal and control power input, second power source for relay control input terminal connection, first
The resistance other end is connected with temp probe one end, and the temp probe other end is connected with NPN transistor base, NPN triode current collection
Pole is connected with first relay negative power supply input terminal, and first relay normally open contact end and time relay module are just
Pole power input and positive trigger signal input terminal, second resistance one end connection, NPN triode emitter and second after
Electric appliance negative power supply input terminal, the negative power supply input terminal of time relay module and cathode trigger signal input terminal, luminous two
The connection of pole pipe cathode, the cathode power supply output end of time relay module and second relay cathode power supply input terminal connection,
Second resistance other end is connected with light emitting diode anode.
The preceding upper end of shell that the light-emitting surface of the temperature sensing circuit light emitting diode is located at vehicle diagnosis instrument ontology is left
On the inside of the aperture of second, portion, the lower end of temp probe is mounted on the upper center of vehicle diagnosis instrument body interior circuit board CPU.
The automatic lighting circuit includes relay and photo resistance, NPN triode, resistance, therebetween through circuit board wiring
Connection, photo resistance one end and resistance one end, relay cathode power supply input terminal and control power input connect, photo resistance
The other end and first NPN transistor base connection, first NPN triode collector and the resistance other end, second NPN tri-
The connection of pole pipe base stage, second NPN triode collector are connected with relay negative power supply input terminal, first NPN triode
Emitter and second NPN triode emitter connection, the front end light-receiving surface of photo resistance are located at vehicle diagnosis instrument ontology
On the inside of the preceding upper end left part third aperture of shell.
The utility model beneficial effect is: the utility model is in use, the inside lithium storage battery of vehicle failure examining-repairing instrument ontology is electric
It forces down in 5V, under voltage detecting circuit effect, the light emitting diode of voltage detecting circuit, which can obtain electroluminescence, to be given user and mention
Show and charge in time, prevents ignorant continue to use of user from lithium storage battery in detection being caused to cause vehicle failure to overhaul without electricity
Instrument ontology can not normal use.In use, when CPU breaks down the just raising extremely of initial stage temperature, temperature sensing circuit is not
But user's prompt can be given by lumination of light emitting diode, moreover it is possible to it is automatic over time to disconnect whole board powers,
Fault spread is prevented, and ensure that the preceding user that shuts down has recorded the data of detection.The utility model is bad in outdoor application light
When, the headlamp of automatic lighting circuit meeting turn on automatically upper part of the housing rear and front end, convenient for users to reading on display screen
Data, moreover it is possible to convenient for users to exporting the data of master control borad on the interface and automobile of vehicle failure examining-repairing instrument ontology data line
Socket connection.The utility model is brought convenience to users, and reduces failure propagation.Based on above-mentioned, so the utility model has
Good application prospect.
Detailed description of the invention
The utility model is described further below in conjunction with drawings and examples.
Fig. 1 is the utility model structure diagram.
Fig. 2 be the utility model temperature sensing circuit temp probe andType clamping structure schematic diagram.
Fig. 3 is the utility model circuit diagram.
Specific embodiment
Fig. 1, shown in 2, a kind of vehicle diagnosis instrument with prompt and illumination functions, including vehicle failure examining-repairing instrument sheet
Body 1, headlamp 2, the inside lithium storage battery anode of vehicle failure examining-repairing instrument ontology 1 and the power supply of vehicle failure examining-repairing instrument ontology 1
Switch one end is connected through conducting wire, the internal circuit board general supply input of the power switch other end and vehicle failure examining-repairing instrument ontology 1
The conducting wire for rectifying pole connection even disconnects, the inside negative electrode of lithium accumulator and vehicle failure examining-repairing instrument of vehicle failure examining-repairing instrument ontology 1
The internal circuit board general supply input cathode of ontology 1 is connected through conducting wire, also has voltage detecting circuit 3, temperature sensing circuit
4, automatic lighting circuit 5, voltage detecting circuit 3, two headlamps 2, temperature sensing circuit 4, automatic lighting circuits 5 are mounted on vapour
On the internal circuit board of vehicle trouble hunting instrument ontology 1, the front end light-emitting surface of two headlamps 2 is located at vehicle failure examining-repairing instrument
In the middle part of the upper shell of ontology 1 in the aperture of front and rear sides two, the light issued conducive to two headlamps 2 plays ambient enviroment
Illuminating effect.The light-emitting surface of voltage detecting circuit light emitting diode 3-1 is located at the preceding upper end of shell of vehicle failure examining-repairing instrument ontology 1
On the inside of first aperture of left part, the luminous situation of the convenient front end viewing light emitting diode outside shell.The hair of temperature sensing circuit
The light-emitting surface of optical diode 4-1 is located on the inside of second aperture of the preceding upper end left part of shell of vehicle failure examining-repairing instrument ontology 1, convenient
The luminous situation of front end viewing light emitting diode outside shell, the lower end of temp probe 4-2 is coated with heat-conducting silicone grease, temp probe
The lower end of 4-2 is mounted on the upper center of vehicle failure examining-repairing instrument body interior circuit board CPU, passes through oneType folder
The two subordinate end of left and right of 4-3 is welded on circuit board upper end or so two, and the upper end setting of temp probe 4-2 existsType folder
Lower end in the middle part of 4-3, is mounted on temp probe 4-2 the upper center of CPU.The front end light-receiving surface of photo resistance 5-1 is located at automobile
On the inside of the preceding upper end left part third aperture of the shell of trouble hunting instrument ontology, conducive to the light source outside detection.
Shown in Fig. 3, two headlamp H are the bulb of operating voltage 5V, power 2W, and headlamp can also be using luminous two
Pole pipe.Voltage detecting circuit includes adjustable resistance RP, resistance R1 and R2, NPN triode Q4 and Q2 and light emitting diode VL1,
Between connected through circuit board, first one end resistance R1 is connected with the one end adjustable resistance RP, second one end resistance R2, adjustable resistance
The RP other end and first NPN triode Q4 base stage connection, first NPN triode Q4 collector and first resistance R1 are another
End, second NPN triode Q2 base stage connection, second NPN triode Q2 collector are connected with light emitting diode VL1 cathode,
Light emitting diode VL1 anode and second resistance R2 other end connection, first NPN triode Q4 emitter and second NPN
The connection of triode Q2 emitter, the light-emitting surface of light emitting diode VL1 are located at the preceding upper end left part of shell of vehicle diagnosis instrument ontology
On the inside of first aperture.Temperature sensing circuit includes time controller module finished product U1, relay J1 and J2, resistance R and R3, temperature
Degree probe RT and NPN triode Q1, light emitting diode VL2, connect through wiring, time controller module finished product U1 type therebetween
Number be CHENGX, temp probe RT be model KSD9700, internal two contacts be it is open in usual, shape is 45 DEG C of flat temperature
Degree switch, time controller module finished product U1 have a digital LED pipe, and also there are two power input 1 and 2 feet, two for tool
When trigger signal input terminal 3 and 4 feet, 5 foot of setting button, 6 foot of emergency stop key, a time add 7 foot of key, one
Between subtract 8 foot of key, 9 foot of power output end, the positive and negative polarities power input of time controller module finished product U1 obtain it is electric after,
After operator presses setting button, show that the operating time adds key, time to subtract key respectively by the number of charactron, it can be with
It is set in the 9 foot output cathode power supply of period of needs, after the period of setting, 9 feet stop out-put supply, time controller
After module finished product U1 sets the time, as long as will not change after internal setting data power-off without being arranged next time,
Time sets, after two trigger signal input terminals 3 and 4 feet input triggering power supply signal, time relay module finished product U1 into
The time timing of row setting, first one end resistance R and first relay J1 cathode power supply input terminal and control power input
End, second relay J2 control power input connection, first resistance R other end are connected with the one end temp probe RT, temperature
The degree probe RT other end is connected with NPN triode Q1 base stage, NPN triode Q1 collector and first relay J1 negative power supply
Input terminal connection, 1 foot of cathode power supply input terminal at first relay J1 normally opened contact end and time relay module finished product U1
And positive 3 foot of trigger signal input terminal, second one end resistance R3 connection, NPN triode Q1 emitter and second relay
2 foot of negative power supply input terminal and cathode trigger signal input terminal 4 of J2 negative power supply input terminal, time relay module finished product U1
Foot, the connection of light emitting diode VL2 cathode, 9 foot of cathode power supply output end and second relay of time relay module finished product U1
The connection of device J2 cathode power supply input terminal, second resistance R3 other end are connected with light emitting diode VL2 anode, temperature sensing circuit
The light-emitting surface of light emitting diode VL2 be located on the inside of second aperture of the preceding upper end left part of shell of vehicle failure examining-repairing instrument ontology.
Automatic lighting circuit includes relay J3 and photo resistance RL, NPN triode Q3 and Q5, resistance R4, therebetween through circuit board wiring
Connection, the one end photo resistance RL and the one end resistance R4, relay J3 cathode power supply input terminal and control power input connect, light
The quick resistance RL other end is connected with NPN triode Q3 base stage, NPN triode Q3 collector and the resistance R4 other end, NPN triode
The connection of Q5 base stage, NPN triode Q5 collector connect with relay J3 negative power supply input terminal, NPN triode Q3 emitter with
NPN triode Q5 emitter connection, on the front end light-receiving surface of photo resistance RL is located at before the shell of vehicle failure examining-repairing instrument ontology
It holds on the inside of the aperture of left part third, conducive to the light source outside detection.
Shown in Fig. 3, voltage detecting circuit cathode power supply input terminal one end adjustable resistance RP and vehicle failure examining-repairing instrument sheet
The inside lithium storage battery G anode of body is connected through conducting wire, the power switch S other end and temperature detection of vehicle failure examining-repairing instrument ontology
The one end circuit anode power input resistance R, automatic lighting circuit cathode power supply input terminal relay J3 cathode power supply input terminal
It is connected through conducting wire, the cathode power supply output end relay J2 normally-closed contact end of temperature sensing circuit and vehicle failure examining-repairing instrument ontology
Internal circuit board U2 general supply input anode VCC connected through conducting wire, the cathode power supply output end relay of automatic lighting circuit
Device J3 normally opened contact end is connected with two headlamp H cathode power supply input terminals through conducting wire, the inside of vehicle failure examining-repairing instrument ontology
Lithium storage battery G cathode and voltage detecting circuit negative power supply input NPN triode Q4 emitter, two headlamp H negative power supplies
Input terminal, temperature sensing circuit negative power supply input terminal NPN triode Q1 emitter, automatic lighting circuit negative power supply input terminal
NPN triode Q3 emitter is connected through conducting wire.
Shown in Fig. 3, the vehicle failure examining-repairing instrument ontology of the utility model and existing vehicle failure examining-repairing instrument use process are complete
Unanimously.In voltage detecting circuit: due to, voltage detecting circuit cathode power supply input terminal and vehicle failure examining-repairing instrument ontology it is interior
Portion's lithium storage battery G anode be directly connected to (the negative power supply input terminal of voltage detecting circuit and vehicle failure examining-repairing instrument ontology it is interior
Portion's lithium storage battery G cathode communicates), so vehicle failure examining-repairing instrument ontology whether or not using, the power supply of lithium storage battery G output is all
Voltage detecting circuit can be entered, such voltage detecting circuit can be detected (voltage detecting electricity to the voltage of lithium storage battery in real time
The usually standby current on road only has 10 μ A or so, and electricity consumption is extremely low negligible), when lithium storage battery G (in practical application, lithium
When voltage of the floating voltage of battery G higher than 5V) is higher than 5V, enter NPN triode Q4 after adjustable resistance RP decompression this moment
Base voltage be just above NPN triode Q4 base stage 0.7V starting voltage, then, its collector is connected in NPN triode Q4
Output low level enters the base stage of NPN triode Q2, and NPN triode Q2 base stage is in without suitable bias voltage by its collector of state
Without output, then light emitting diode VL1 would not also obtain electroluminescence；When the voltage of lithium storage battery G is lower than 5V (4.9V or so),
It is immediately lower than the base stage 0.7V of NPN triode Q4 into the base voltage of NPN triode Q4 after adjustable resistance RP decompression this moment
Starting voltage, then, NPN triode Q4 end the base stage that its collector enters NPN triode Q2 without any level, this moment, NPN
Triode Q2 base stage can through resistance R1 (decompression) from the anode of lithium storage battery G obtain suitable bias voltage conducting, its collector output it is low
Level enters the cathode of light emitting diode VL1, since light emitting diode VL1 anode is through resistance R2's (decompression) and lithium storage battery G
Anode connection, so, this moment, light emitting diode VL1, which can obtain electroluminescence and give user, clearly to be prompted, and lithium storage battery G is under-voltage
It charges in time, prevents user is ignorant from continuing to use, lithium storage battery G in detection is caused to cause vehicle failure to overhaul without electricity
Instrument ontology can not normal use, (under actual conditions, the electricity of lithium storage battery G also ensures vehicle failure examining-repairing instrument ontology this moment
Using a period of time, such user can charge again after use, prevent to vehicle failure examining-repairing instrument sheet currently in use
Body normal use impacts).In the utility model production, when the resistance value that manufacturer carries out adjustable resistance RP determines, lithium is disconnected
Two test pencils of voltmeter are connect the collection in the one end adjustable resistance RP and NPN triode Q2 by the cathode power supply of battery G respectively
Electrode respectively connects the positive and negative polarities of external adjustable stabilized voltage supply in the one end adjustable resistance RP, NPN triode Q4 emitter, so
The regulation handle of external adjustable stabilized voltage supply is adjusted afterwards, and the voltage for exporting it is 4.9V, then left and right adjusting adjustable resistance RP
Regulation handle, change the resistance value of adjustable resistance RP, the low electricity of collector output just be connected when adjusting to NPN triode Q2
It is flat, that is, just reach the resistance value purpose for regulating adjustable resistance RP when voltmeter display voltage digital.
Shown in Fig. 3, in temperature sensing circuit: working normally internal circuit plate when vehicle failure examining-repairing instrument ontology is in
Cpu temperature be lower than 45 DEG C when, the normally opened contact of inside two of temp probe RT is in open-circuit condition, and NPN triode Q1 is in
By state, cpu temperature raising or CPU faults itself extremely is caused to cause when vehicle failure examining-repairing instrument ontology is abnormal
When its temperature is higher than 45 DEG C, two contacts can be closed inside temp probe RT this moment, and then the base stage of NPN triode Q1 can be through temperature
Degree probe RT, resistance R (decompression) obtain suitable bias voltage conducting from lithium storage battery G anode, and the collector output of NPN triode Q1 is low
Level enters relay J1 negative power supply input terminal, and then, relay J1 obtains electric actuation, and it controls power input and normally opened touching
Point end closure, due to, relay J1 cathode power supply input terminal and control power input and lithium storage battery G anode communicate this moment,
1 foot of cathode power supply input terminal and positive trigger signal input of relay J1 normally opened contact end and time relay module finished product U1
Hold 3 feet, the connection of second one end resistance R3,9 foot of cathode power supply output end of time relay module finished product U1 and second after
The connection of electric appliance J2 cathode power supply input terminal, second resistance R3 other end are connected with light emitting diode VL2 anode, light emitting diode
VL2 negative power supply input terminal and 4 foot of time relay module finished product U1 negative power supply input terminal this moment with lithium storage battery G cathode phase
It is logical, so at this point, lithium storage battery G anode after resistance R3 (decompression) enters light emitting diode VL2 cathode power supply input terminal, shines
Diode VL2 can obtain electroluminescence, and cpu temperature is prompted to increase；When 1 foot of cathode power supply input terminal of time relay module finished product U1
And positive 3 foot of trigger signal input terminal, 2 foot of negative power supply input terminal and 4 foot of cathode trigger signal input terminal obtain it is electric after, the time after
Electrical appliance module finished product U1 is inside it under circuit function, and after 10 seconds, 9 foot of output end can export high level and enter relay at interval
Device J2 cathode power supply input terminal, then, relay J2 obtains electric actuation, and it controls power input and the disconnection of normally-closed contact end, by
In the internal circuit board U2 general supply input anode VCC warp of relay J2 normally-closed contact end and vehicle failure examining-repairing instrument ontology
Conducting wire connection, so be spaced 10 seconds when cpu temperature is more than 45 DEG C, relay J2 obtain it is electric be attracted its control power input with
After normally-closed contact end disconnects, the whole power loss of internal circuit board U2 meeting of vehicle failure examining-repairing instrument ontology no longer work；The present embodiment
In, light emitting diode VL2 obtains electroluminescence, time relay module finished product U1 separated in time, then disconnects vehicle failure maintenance
The general supply of the internal circuit board U2 of instrument ontology, is the place because different in use environment, and cpu temperature raising is not necessarily vapour
There is failure in vehicle trouble hunting instrument ontology, it may be possible to caused by external abnormal temperature, such as summer in outdoor application, or
Vehicle failure examining-repairing instrument ontology is influenced to cause cpu temperature to increase extremely by interior high temperature, in this way when light emitting diode VL2 obtain it is electric
After shining, user can judge with specific reference to ambient temperature at this moment, if ambient temperature is not high, just can determine that
Be vehicle failure examining-repairing instrument ontology or CPU itself there is a problem turn off the power switch in time S can, such as ambient temperature height
Just can determine that it is ambient temperature effect, the related data that vehicle failure examining-repairing instrument ontology shows screen just can be read in such user
Afterwards (when preventing ambient temperature that cpu temperature is caused to obtain electroluminescence just above 45 DEG C, light emitting diode VL2, vehicle failure inspection
The internal circuit board U2 for repairing instrument ontology no longer works with regard to power loss, and user also has little time reading vehicle failure examining-repairing instrument ontology and shows
The various data of screen detection, vehicle failure examining-repairing instrument ontology detected completely ineffective with regard to power loss so as to cause last time, give user
Bring is inconvenient) power switch S is turned off, it is stopped using to vehicle failure examining-repairing instrument ontology, opens power supply again after CPU cooling and open
S is closed to continue to use.
Shown in Fig. 3, in automatic lighting circuit and two headlamp H: when extraneous light is strong, photo resistance RL light
Face, which is illuminated by the light its resistance value, becomes smaller (resistance value is in 100K or so), in this way, the base voltage of NPN triode Q3 is higher than 0.7V
To which the base stage that its collector output low level enters NPN triode Q5 be connected, NPN triode Q5 base stage is in without suitable bias voltage
By its collector of state without output, then relay J3 would not also obtain electric actuation, when extraneous light dimness, photo resistance
RL light-receiving surface, which is illuminated by the light intensity its resistance value that is lower, becomes larger (resistance value is in 10M or so), in this way, the base of NPN triode Q3
Pole tension is lower than 0.7V starting voltage, and then, NPN triode Q3 ends its collector and enters NPN triode Q5 without any level
Base stage, this moment, NPN triode Q5 base stage can through resistance R4 (decompression) from the anode of lithium storage battery G obtain suitable bias voltage conducting
Its collector output low level enters relay J3 negative power supply input terminal, and then, relay J3 obtains electric actuation, and its controls power supply
Input terminal and normally opened contact end closure, due to, relay J3 cathode power supply input terminal and control power input and lithium storage battery G
Anode communicates this moment, and relay J3 normally opened contact end is connected with the cathode power supply input terminal of two headlamp H through conducting wire, lithium electric power storage
Pond G cathode and two headlamp H negative power supply input terminals are connected through conducting wire, so two headlamp H can obtain electroluminescence this moment, together
When for vehicle failure examining-repairing instrument ontology shell rear and front end illuminate, convenient for users to read display screen on data, moreover it is possible to
Convenient for users to the interface of vehicle failure examining-repairing instrument ontology data line is connected with the data output socket of master control borad on automobile.
Fig. 3, in voltage detecting circuit: adjustable resistance RP specification is 2M；Resistance R1 and R2 resistance value is 20K, 400 Ω respectively；
NPN triode Q4 and Q2 model is 9014,9013 respectively；Light emitting diode VL1 is green LED.Temperature sensing circuit
In: relay J1 and J2 are the 6V miniature relays of model DC4100；Resistance R and R3 resistance value is 470K, 400 Ω respectively；NPN tri-
Pole pipe Q1 model is 9013；Light emitting diode VL2 is red light emitting diodes.In automatic lighting circuit: relay J3 is model
The 6V miniature relay of DC4100；Photo resistance RL model is MD45；NPN triode Q3 and Q5 model is 9014,9013 respectively；
Resistance R4 resistance value is 20K.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above, for
For those skilled in the art, it is clear that the utility model is limited to the details of above-mentioned exemplary embodiment, and without departing substantially from this reality
In the case where with novel spirit or essential attributes, the utility model can be realized in other specific forms.Therefore, no matter from
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by appended
Claim rather than above description limit, it is intended that the institute that will be fallen within the meaning and scope of the equivalent elements of the claims
It changes and is embraced therein.Right involved in should not treating any reference in the claims as limiting is wanted
It asks.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. a kind of vehicle diagnosis instrument with prompt and illumination functions, including vehicle failure examining-repairing instrument ontology, headlamp, special
Sign is also there is voltage detecting circuit, temperature sensing circuit, automatic lighting circuit, voltage detecting circuit, two headlamps, temperature
Degree detection circuit, automatic lighting circuit are mounted on the internal circuit board of vehicle failure examining-repairing instrument ontology, before two headlamps
End light-emitting surface is located in the middle part of the upper shell of vehicle failure examining-repairing instrument ontology in the aperture of front and rear sides two, voltage detecting electricity
Road cathode power supply input terminal is connected with the inside lithium storage battery anode of vehicle failure examining-repairing instrument ontology through conducting wire, vehicle failure maintenance
The power switch other end of instrument ontology is connected with temperature sensing circuit, automatic lighting circuit cathode power supply input terminal through conducting wire, temperature
Spend the cathode power supply output end of detection circuit and the internal circuit board general supply input anode warp of vehicle failure examining-repairing instrument ontology
The cathode power supply input terminal of conducting wire connection, the cathode power supply output end of automatic lighting circuit and two headlamps is connected through conducting wire,
The inside negative electrode of lithium accumulator and voltage detecting circuit of vehicle failure examining-repairing instrument ontology, two headlamps, temperature sensing circuit, from
Dynamic lighting circuit negative power supply input terminal is connected through conducting wire.
2. a kind of vehicle diagnosis instrument with prompt and illumination functions according to claim 1, it is characterised in that illumination
Lamp can also use light emitting diode.
3. a kind of vehicle diagnosis instrument with prompt and illumination functions according to claim 1, it is characterised in that voltage
Detection circuit includes adjustable resistance, resistance, NPN triode and light emitting diode, is connected therebetween through circuit board, first resistance one
End is connected with adjustable resistance one end, second resistance one end, the adjustable resistance other end and first NPN transistor base connection,
First NPN triode collector and first resistance other end, second NPN transistor base connection, second tri- pole NPN
Pipe collector is connected with light emitting diode cathode, light emitting diode anode and second resistance other end connection, first NPN tri-
Pole pipe emitter and second NPN triode emitter connection, the light-emitting surface of light emitting diode are located at vehicle diagnosis instrument ontology
First aperture of the preceding upper end left part of shell on the inside of.
4. a kind of vehicle diagnosis instrument with prompt and illumination functions according to claim 1, it is characterised in that temperature
Detection circuit includes time controller module, relay, resistance, temp probe and NPN triode, light emitting diode, is passed through therebetween
Wiring connection, temp probe inside two contacts are open in usual, first resistance one end and first relay anode electricity
Source input terminal and control power input, second power source for relay control input terminal connection, first resistance other end and temperature
One end connection of degree probe, the temp probe other end are connected with NPN transistor base, NPN triode collector and first relay
The connection of device negative power supply input terminal, the cathode power supply input terminal of first relay normally open contact end and time relay module and
Positive trigger signal input terminal, second resistance one end connection, NPN triode emitter and second relay negative power supply are defeated
Enter end, the negative power supply input terminal of time relay module and cathode trigger signal input terminal, the connection of light emitting diode cathode, when
Between relay module cathode power supply output end and the connection of second relay cathode power supply input terminal, second resistance other end
It is connected with light emitting diode anode.
5. a kind of vehicle diagnosis instrument with prompt and illumination functions according to claim 4, it is characterised in that temperature
The light-emitting surface of detection circuit light emitting diode is located on the inside of second aperture of the preceding upper end left part of shell of vehicle diagnosis instrument ontology,
The lower end of temp probe is mounted on the upper center of vehicle diagnosis instrument body interior circuit board CPU.
6. a kind of vehicle diagnosis instrument with prompt and illumination functions according to claim 1, it is characterised in that automatic
Lighting circuit includes relay and photo resistance, NPN triode, resistance, is connected therebetween through circuit board wiring, photo resistance one end
It is connected with resistance one end, relay cathode power supply input terminal and control power input, the photo resistance other end and first NPN
Transistor base connection, first NPN triode collector are connected with the resistance other end, second NPN transistor base, and second
NPN triode collector is connected with relay negative power supply input terminal, first NPN triode emitter and second NPN
Transistor emitter connection, the front end light-receiving surface of photo resistance are located at the preceding upper end left part third of shell of vehicle diagnosis instrument ontology
On the inside of a aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920016016.XU CN209070364U (en) | 2019-01-06 | 2019-01-06 | A kind of vehicle diagnosis instrument with prompt and illumination functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920016016.XU CN209070364U (en) | 2019-01-06 | 2019-01-06 | A kind of vehicle diagnosis instrument with prompt and illumination functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209070364U true CN209070364U (en) | 2019-07-05 |
Family
ID=67102647
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920016016.XU Expired - Fee Related CN209070364U (en) | 2019-01-06 | 2019-01-06 | A kind of vehicle diagnosis instrument with prompt and illumination functions |
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| Country | Link |
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| CN (1) | CN209070364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220120791A1 (en) * | 2020-10-15 | 2022-04-21 | Grace Technologies, Inc. | Compact test point device |
-
2019
- 2019-01-06 CN CN201920016016.XU patent/CN209070364U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220120791A1 (en) * | 2020-10-15 | 2022-04-21 | Grace Technologies, Inc. | Compact test point device |
| US12000872B2 (en) * | 2020-10-15 | 2024-06-04 | Grace Technologies, Inc. | Compact test point device |
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