CN206292269U - A kind of multi-purpose vehicle(MPV) test instrument probe - Google Patents
A kind of multi-purpose vehicle(MPV) test instrument probe Download PDFInfo
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- CN206292269U CN206292269U CN201621297512.XU CN201621297512U CN206292269U CN 206292269 U CN206292269 U CN 206292269U CN 201621297512 U CN201621297512 U CN 201621297512U CN 206292269 U CN206292269 U CN 206292269U
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- module
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- probe
- voltage detection
- detection module
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Abstract
The utility model discloses a kind of circuit structure diagram of multi-purpose vehicle(MPV) test instrument probe, including probe module, ship type switch module, DC voltage detection module, alternating voltage detection module, resistance test and on off test module, Test Diode module, MCU module and color screen displays and this eight parts of key-press module, the probe module respectively with ship type switch module, DC voltage detection module, alternating voltage detection module, test module, Test Diode module is connected, the MCU module respectively with DC voltage detection module, alternating voltage detection module, test module, Test Diode module is connected, the color screen displays are connected with key-press module with MCU module.
Description
Technical field
The utility model is related to a kind of auto repair device, more particularly to a kind of multi-purpose vehicle(MPV) test instrument probe.
Background technology
When automobile electronic system and electric equipment are repaired, current most maintenance tool surely belongs to universal meter, or
Multiple meter for automobile with a small number of automobile specified functions, such as measurement DC voltage, alternating voltage, resistance, diode, short circuit are logical
The simple function such as disconnected, can all use universal meter.But directly also have some shortcomings using universal meter, such as universal meter need through
Battery is often changed, additional illumination is needed than dark place in enging cabin light, universal meter p-wire often falls short of, general-purpose
Table test line front end is not sharp enough, it is impossible to puncture the circuit for being inconvenient to dismantle, universal meter can not import negative or positive electrode battery and arrive
Probe is used to test electric elements function, it is impossible to display waveform etc..
In view of this, it is necessary to provide it is a kind of without additionally power supply, automatic light source, p-wire long, front end is sharp, can help
Electrical equipment be grounded or connect power supply, while can be with the device of test signal waveform, to improve the facility of automotive electric equipment ordinary maintenance
Property, while the trouble of the expensive oscillograph of purchase with detection signal waveform, can be saved.
Utility model content
The purpose of this utility model is the shortcoming and deficiency for overcoming prior art, there is provided a kind of multi-purpose vehicle(MPV) probe is surveyed
Examination instrument, by the common function of integrated universal meter, while without extra power supply, automatic light source, p-wire long, front end be sharp, energy
Import negative or positive electrode battery to probe be used to test electric elements function, can be with test signal waveform, to improve auto repair
Convenience, improve operating efficiency.
The purpose of this utility model is achieved through the following technical solutions：A kind of multi-purpose vehicle(MPV) test instrument probe, including visit
Pin module, ship type switch module, DC voltage detection module, alternating voltage detection module, resistance test and on off test module
With on off test module, Test Diode module, MCU module and color screen displays and key-press module this eight parts, the spy
Pin module is surveyed with ship type switch module, DC voltage detection module, alternating voltage detection module, test module, diode respectively
Die trial block connect, the MCU module respectively with DC voltage detection module, alternating voltage detection module, test module, diode
Test module is connected, and the color screen displays are connected with key-press module with MCU module.
Further, the probe module includes sophisticated sharp metal probe and the metalwork being welded on motherboard,
Metal probe is detachably arranged on metalwork.
Further, the plastic sheath for protective effect is arranged with the metal probe.
The control technology that the utility model is used belongs to control technology of the prior art.
Compare prior art, the utility model connects automobile batteries by battery line makes electricity on instrument, using more facilitating,
AC signal waveform can be detected, the function of part oscillograph is substituted, cost performance is increased, while the utility model can be imported
Anode or negative pole, without using wire jumper, while the utility model uses sharp probe, can puncture wire to electric elements
Protection skin, without dismantling the i.e. measurable device for being inconvenient to dismantle of wire.
Brief description of the drawings
Fig. 1 is the circuit connection structure figure of multi-purpose vehicle(MPV) test instrument probe of the present utility model；
Fig. 2 is the structural representation of the probe module.
Specific embodiment
To describe technology contents of the present utility model, structural feature, the objects and the effects in detail, below in conjunction with implementation
Mode simultaneously coordinates accompanying drawing to be explained in detail, but implementation method not limited to this of the present utility model.
As shown in figure 1, a kind of multi-purpose vehicle(MPV) test instrument probe, mainly including probe module, ship type switch module, direct current
Voltage detection module, alternating voltage detection module, resistance test and on off test module, Test Diode module, MCU (micro- places
Reason device) module and color screen displays and this eight parts of key-press module, the probe module respectively with ship type switch module, direct current
Voltage detection module, alternating voltage detection module, resistance test and on off test module, the connection of Test Diode module, it is described
MCU module is connected with DC voltage detection module, alternating voltage detection module, test module, Test Diode module respectively, institute
Color screen displays are stated to be connected with key-press module with MCU module.
The probe module, is mainly used to gather signal, while to import battery plus-negative plate path, as shown in Fig. 2 described
Probe module includes sophisticated sharp metal probe 1 and the metalwork 2 being welded on motherboard, and use is arranged with metal probe 1
In the plastic sheath 11 of protective effect, metal probe 1 is detachably arranged on metalwork 2,2 fixations of metalwork and connection mainboard
Effect, when test needs metal probe 1 to be installed on fixed metalwork 2 and take down plastic sheath 11 to use, and metal is visited
Signal on pin 1 passes through fixed metalwork together with motherboard, using finishing, metal probe 1 is pulled down.
The ship type switch module be one can super-high-current third gear ship type switch and fuse, both end of which connects respectively
To positive source and power cathode, the intermediate ends of switch are connected on probe by a fuse, under nature in the middle of switch
End is hanging, when up or down by switch, termination power or ground connection in the middle of switch.
The DC voltage detection module is used for detecting DC voltage that DC voltage detection module is an electric resistance partial pressure inspection
Survey line road, from the signal that metal probe 1 is come in by DC voltage module when be divided to the voltage letter of the suitable detections of CPU
Number, then enter to be converted into data signal by the analog-to-digital conversion mouthful that a voltage follower is input to CPU to show, while CPU
Also partial pressure circuit can be adjusted according to the data for detecting, the voltage after partial pressure is remained within suitable being divided into.
The alternating voltage detection module is used for detecting DC voltage that it is made up of two parts, and a part is partial pressure detection
Voltage segment, another part is alternating-current pulse detection part, and wherein partial pressure detection voltage part is and Part I DC voltage
Detection shares a circuit；Alternating-current pulse detection is mainly tapped into metal probe 1 signal for coming and is filtered directly by capacitor filtering
Stream composition, then be input in voltage comparator, produce pulse signal, CPU to detect pulse signal in the rising edge of AC signal
Then count, the pulse number for detecting each second is then the frequency of measured signal, while ceaselessly detecting tested letter in 500ms
Number voltage swing, draw maximin.
The resistance test and on off test module are mainly used to measure resistance and circuit on-off, and the method that it is realized is such as
Under, CPU exports a standard voltage value with measuring resistance by triode to probe, when metal probe 1 does not connect tested electricity
During resistance, it has been connected in normal voltage by a resistance equivalent to metal probe 1, no electric current passes through, so on metal probe 1
Voltage be normal voltage；When metal probe 1 and ground wire have been directly connected to measured resistance, measured resistance and measuring resistance string
Connection, now the voltage on metal probe 1 is normal voltage by the voltage after measuring resistance and measured resistance partial pressure, CPU inspections
The voltage i.e. measured resistance voltage on probe is measured, the electricity in the voltage as measuring resistance on probe is subtracted with normal voltage
Pressure, so as to calculate the electric current in series resistance, it is known that measured resistance voltage and electric current, tested electricity is calculated further according to Ohm's law
The resistance of resistance, is then shown by display screen.When the resistance value for detecting is less than 60 ohm, then it is judged as short circuit and reports
It is alert.
The Test Diode module is mainly used to test diode forward voltage parameter, itself and resistance detection module class
Seemingly, simply the measuring resistance of output is fixed using 1K ohm, and only needs to detect the forward voltage of measured diode i.e.
Can be shown by display screen.
The MCU module, mainly selects which measurement module connected by monitoring button, while process modules adopting
Data and the button collection for collecting, display data show.
The color screen displays and key-press module, are mainly used to display data or figure and detection keypress function, use
Color screen shows, makes display function more attractive in appearance.
The course of work of multi-purpose vehicle(MPV) test instrument probe of the present utility model is specific as follows：
1. connecting automobile batteries by battery line makes electricity on instrument, selects straight by color screen displays and key-press module button
Stream voltage detecting function, then can start to detect DC voltage, and show measurement data by color screen displays, measure this vapour
During car battery, without probe is connected into battery, as long as can just measure cell voltage by ship type switch forward；
2. alternating-current measurement function is selected by button, drives DC voltage detection module to carry out ac voltage signal measurement,
This function can show voltage max, minimum value, frequency etc., it is most important that can show the waveform of test signal；
3. resistance and on off test function are selected by button, then can be with test resistance device parameter, while can measure
Whether connection is good；
4. diode measurement pattern is selected by button, then can be with the forward voltage parameter of measuring diode；
5. switched by pressing the ship type on instrument panel, negative or positive electrode battery can be imported and be used to test electricity to probe
Device element function, without increasing wire jumper to electric elements.
The utility model connects automobile batteries by battery line makes electricity on instrument, using more facilitating, can detect exchange
Signal waveform, substitutes the function of part oscillograph, increased cost performance, while the utility model can import anode or negative
Pole, without using wire jumper, while the utility model uses sharp probe, can puncture wire-protecting skin to electric elements, without
Dismounting wire is measurable to be once inconvenient to dismantle device.
The utility model can substitute the common function of universal meter, there is provided various power adaptation lines can make with extended line
Powered with automobile batteries, automatic light source, p-wire long, front end is sharp, can import negative or positive electrode battery is used to test to probe
Electric elements function, operating efficiency, to improve the convenience of auto repair, can be improved with test signal waveform.
Above-described embodiment is the utility model preferably implementation method, but implementation method of the present utility model is not by above-mentioned
The limitation of embodiment, it is other it is any without departing from the change made under Spirit Essence of the present utility model and principle, modify, replace
Generation, combination, simplification, should be equivalent substitute mode, be included within protection domain of the present utility model.
Claims (3)
1. a kind of multi-purpose vehicle(MPV) test instrument probe, it is characterised in that：Including probe module, ship type switch module, DC voltage
Detection module, alternating voltage detection module, resistance test and on off test module and on off test module, Test Diode mould
Block, MCU module and color screen displays and this eight parts of key-press module, the probe module respectively with ship type switch module, straight
Stream voltage detection module, alternating voltage detection module, test module, Test Diode module connection, the MCU module respectively with
DC voltage detection module, alternating voltage detection module, test module, the connection of Test Diode module, the color screen displays
It is connected with key-press module with MCU module.
2. multi-purpose vehicle(MPV) test instrument probe according to claim 1, it is characterised in that：The probe module includes tip
Sharp metal probe and the metalwork being welded on motherboard, metal probe are detachably arranged on metalwork.
3. multi-purpose vehicle(MPV) test instrument probe according to claim 2, it is characterised in that：It is arranged with the metal probe
For the plastic sheath of protective effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621297512.XU CN206292269U (en) | 2016-11-29 | 2016-11-29 | A kind of multi-purpose vehicle(MPV) test instrument probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621297512.XU CN206292269U (en) | 2016-11-29 | 2016-11-29 | A kind of multi-purpose vehicle(MPV) test instrument probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206292269U true CN206292269U (en) | 2017-06-30 |
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ID=59098376
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621297512.XU Active CN206292269U (en) | 2016-11-29 | 2016-11-29 | A kind of multi-purpose vehicle(MPV) test instrument probe |
Country Status (1)
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| CN (1) | CN206292269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109946525A (en) * | 2019-03-15 | 2019-06-28 | 湖南强军科技有限公司 | A kind of device and method of measurement of Grounding Resistance |
-
2016
- 2016-11-29 CN CN201621297512.XU patent/CN206292269U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109946525A (en) * | 2019-03-15 | 2019-06-28 | 湖南强军科技有限公司 | A kind of device and method of measurement of Grounding Resistance |
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