CN2507722Y - Multipurpose meter specially adapted for motor vehicle - Google Patents
Multipurpose meter specially adapted for motor vehicle Download PDFInfo
- Publication number
- CN2507722Y CN2507722Y CN 01273614 CN01273614U CN2507722Y CN 2507722 Y CN2507722 Y CN 2507722Y CN 01273614 CN01273614 CN 01273614 CN 01273614 U CN01273614 U CN 01273614U CN 2507722 Y CN2507722 Y CN 2507722Y
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- CN
- China
- Prior art keywords
- voltage
- branch road
- circle
- contact
- pointer
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- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
A multi purpose meter only for motor vehicles comprises an outer-shell, a pointer type meter, a graduated circle, a test pencil and a detecting circuit. The utility model is characterized in that the graduated circle is not provided with complicated electrical symbols and numbers, and the centre of a circle of a needle pointer is the centre of a circle of the graduated circle, and the graduated circle is only provided with a few of arcs and characters denoting states of capacitance, voltage, fuel oil, machine oil, water temperature and a voltage regulator which are measured. The detecting circuit is simple too relative to the graduated circle, and comprises an indicating circuit for judging polarities of voltage and a voltage stretch branch for showing the measured value. The utility model has the advantages of simple structure, direct-viewing and low cost, and common drivers can point out failures quickly without having deep electrical knowledge.
Description
One, technical field
The utility model relates to the service tools field of self-propelled vehicle, particularly a kind of self-propelled vehicle special multi-purpose table.
Two, background technology
Many electrical equipment are arranged on the self-propelled vehicle, be used for controlling its driving or indicate its mode of operation.When its et out of order, in general all diagnose and keep in repair with multi-meter.Because common multi-meter is for detecting various electric signal design-calculateds, no matter thereby be traditional pointer multimeter, or digital multimeter, the shown content of calibrated disc on its gauge outfit generally is the curtage value, thereby can not be direct, express fuel oil concisely, machine oil, water temperature, storage battery, the mode of operation of driving engine and electrical generator, this is difficult to use for being ignorant of electric general navigating mate, because this also needs to convert these numerical value to physical quantity corresponding, therefore above-mentioned fault having taken place, has all been overhauled by professional automobile repair personnel usually.In addition, because traditional multimeter (being commonly called as multi-meter) indication is not directly perceived, even if concerning skilled locomotive electric cad system maintainer, use inconvenient yet.
In addition, because the field condition complexity, present multimeter cannot be fixed, and takes table during use often on the other hand, and a hand measurement is very inconvenient.
Three, summary of the invention
Task of the present utility model is that a kind of self-propelled vehicle that is specifically designed to of design keeps in repair, and can concisely show the various mode of operations of the self-propelled vehicle of surveying intuitively, uses self-propelled vehicle special multi-purpose table more easily.
Scheme is as follows:
A kind of self-propelled vehicle special multi-purpose table, comprise shell, have the gauge outfit, the calibrated disc on the gauge outfit of pointer, positive test pencil, negative test pencil, testing circuit, it is characterized in that the center of circle with pointer is the center of circle on the described calibrated disc, be provided with the segmental arc of the state that is used for representing the electric capacity of surveying, voltage, fuel oil, machine oil, water temperature, pressure regulator.
Described testing circuit comprises and described positive test pencil, the negative corresponding positive pole that links of test pencil and negative pole that between is provided with a polarity of voltage indication branch road that is made of light-emitting diode and the series connection of first resistance; With this branch road voltage measurement branch road that a leading role's contact by described gauge outfit and single-pole triple-throw switch, first secondary contact second resistance, reverse protection diode constitute that is in parallel; Between the point of contact of second secondary contact of switch and second resistance and diode, be provided with a voltage broadening branch road that constitutes by the 3rd resistance, zener diode.
Between the 3rd contact of described switch and negative pole, be connected with a high-tension coil high voltage induction branch road, it comprises that one is connected in the 3rd secondary contact of described switch and first aerotron between the negative pole, its collecting electrode and described the 3rd secondary contact link, its emitter-base bandgap grading and negative pole link, be connected with an inclined to one side value circuit that constitutes by potential device between its base stage and the emitter-base bandgap grading, between its collecting electrode and base stage, be parallel with two aerotrons of NPN, positive-negative-positive complementation, on the base stage of these two aerotrons, be connected with a high voltage induction sheetmetal separately.
Four, description of drawings
Fig. 1 is the schematic circuit diagram of the utility model testing circuit;
Fig. 2 is a contour structures scheme drawing of the present utility model;
Fig. 3 is the scheme drawing of the utility model calibrated disc.
Five, the specific embodiment
The utility model comprises shell 1, has the gauge outfit 2 of pointer 9, the calibrated disc 3 on the gauge outfit 2, is located at the single-pole triple-throw K switch on the shell 1, and gauge outfit 2 drives by testing circuit 7.
The center of circle with pointer 9 on the calibrated disc 3 is the center of circle, count from lower to upper, be provided with 6 arc sections 6, wherein article one segmental arc 6 is used to refer to machine oil and water temperature situation, form by two the little segmental arcs and a middle big segmental arc at two ends in this segmental arc, also be provided with C, E scale on the big segmental arc, it is corresponding to a large amount of Jiefang brands that use or the outputting standard value 7.0V and the 8.6V of Dongfeng brand auto meter voltage stabilizer.Second segmental arc 6 is used to indicate the fuel oil state.Article three, segmental arc 6 is used to refer to the scope of electric capacity, voltage and the mode of operation of platinum contact.Fourth, fifth, six segmental arc 6 above-mentioned digital start-stop end values that are used to adjust different model generator regulator operation voltage that indicate, it is respectively 13.2-14.2V, 13.5-14.5V, 13.8-14.8V.
Be provided with magnet 10 in the bottom of shell 1, when servicing a car, this multimeter can be adsorbed on any position of being convenient to observe of car body (car body is a magnetizer), handle other work thereby can economize to sell.
As shown in Figure 3, testing circuit 7 of the present utility model is such: positive and negative test pencil 4,5 is corresponding and anodal V according to polarity
+And negative pole V
-Link to each other, between is provided with one by light-emitting diode D
1With first resistance R
1The polarity of voltage indication branch road that series connection constitutes; Be parallel with a main contact K with this branch road by described gauge outfit 2 and single-pole triple-throw K switch
0, the first secondary contact K
1, second resistance R
2, reverse protection diode D
3The voltage measurement branch road that constitutes; The second secondary contact K in K switch
2With second resistance R
2With diode D
3Point of contact between establish one by the 3rd resistance R
3, zener diode D
2The voltage broadening branch road that constitutes.The 3rd secondary contact K in K switch
3With negative pole V
-Between be connected with a high-tension coil high voltage induction branch road, it comprises that one is connected in the 3rd secondary contact K of K switch
3With negative pole V
-Between the first aerotron T
1, its collecting electrode and the 3rd secondary contact K
3Link its emitter-base bandgap grading and negative pole V
-Link, be connected with one between its base stage and the emitter-base bandgap grading by potential device R
4The inclined to one side value circuit that constitutes is parallel with the aerotron T of NPN, two complementations of positive-negative-positive between its collecting electrode and base stage
2, T
3, on the base stage of these two aerotrons, be connected with a high voltage induction sheetmetal 8 separately.
Very small and exquisite (65mm * the 45mm * 25mm) of the utility model volume, can see by Fig. 2, there are not numerous and diverse numeral and electric unit on the calibrated disc 3, have only several the segmental arcs 6 (the most handy color differentiation) that marking small numbers of characters, take this with 9 on pointer to the position just can judge the parameter of surveying quickly and whether be in normal mode of operation.
The utility model has following several function basically:
1. when electrical generator can not generate electricity, only needing to measure with positive and negative test pencil 4,5 parameter of a point, can problem identificatioin be at electrical generator or regulating control just.
2. can accurately adjust regulating control according to the output voltage values of survey electrical generator, make electrical generator send normal voltage.
3. when starter can not start, can detect starter, storage battery fault or fault very soon.
4. when fuel gage, water thermometer, oil pressure gauge generation problem, can judge the instrument fault or the fault of sensor very soon, and can detect and adjust the mode of operation of the incidental voltage stabilizer of auto meter.
5. when locomotive can't start, can easily judge with this table was fuel oil, mechanical problem, or electrical problems.If electrical problems can very fast judgement be high-tension coil, electric capacity, contact breaker gap or circuit question.
6. can detect the fault of full car electric wiring.
7. can detect the quality of elements such as diode, electric capacity, bulb.
8. by light-emitting diode D
1State, can judge whether the polarity of storage battery or positive and negative test pencil 4,5 connects instead.
Also have several specific functions:
A. need not open distributor head, just can judge the size of contact breaker gap, with and whether working properly.
B. need not contact circuit hot, just can measure high-tension coil and have or not high pressure output.
C. need not screw off light-up plug, can judge that just normally whether spark-plug ignition.
D. owing to adopted voltage broadening branch road, can be according to the parameter request of the regulating control of different model, convenient and adjust voltage exactly.
Further specify principle of work of the present utility model below in conjunction with testing circuit shown in Figure 37.
1, polarity of voltage indication branch road is used to refer to storage battery or this multimeter and connects and use light-emitting diode D when connection is correct inverse time
1Do not work.It is bright and alarm to connect inverse time.
2, the effect of voltage broadening branch road is the main contact K when K switch
0Push the first secondary contact K on the left side
1The time, it and calibrated disc 3 topmost three camber lines cooperate, and constitute the accurate adjustment circuit of generator voltage.With 12 volts of automobile current generators and pressure regulator is example, and the operation voltage of pressure regulator can be divided into 13.2-14.2V according to the model difference, 13.5-14.5V, and tens kinds of 13.8-14.8V etc., its pressure reduction only are 1 volt.This 1 volt of pressure reduction is on general multimeter, and pointer can only deflection 1-2 °, therefore is difficult to electrical generator is accurately adjusted.This voltage broadening branch road can make pointer 9 just deflection in the time of 12.65 volts, and this 1 pressure reduction of 13.2-14.2 volt can make 40 ° of needles deflection like this, thereby also just can accurately adjust the voltage of electrical generator accurately.Diode D
3Effect be just in case can prevent to burn out gauge outfit during positive and negative test pencil 4,5 reversal connections.Three segmental arcs 6 that calibrated disc 3 is set topmost have six warps end to end, from left to right indicate 13.2V, 13.5V, 13.8V, 14.2V, 14.5V, 14.8V respectively, corresponding to the key point of domestic tens kinds of pressure regulator voltages adjustment.
3. the voltage measurement branch road has been formed the volt meter that can survey 0-16V voltage, the main contact K of single-pole triple-throw K switch
0When being in middle speed, it can carry out the measurement of multiple parameter with different segmental arcs 6 combination on the calibrated disc 3, is the widest one grade of purposes.
1) from bottom to top the 3rd segmental arc 6 is divided into 6 sections again, its several first section states that can measure electric capacity in left side, and pointer is swung in this section and is returned original position again and be normally when measuring electric capacity.Left several the 3rd section of this segmental arc is the zone of surveying cutout relay platinum, and when surveying contact breaker gap, pointer 9 is in and illustrates in this section that contact breaker gap is normal substantially, and its closed coefficient is about 0.6, or its gap is between 0.35-0.45.If pointer 9 in several second section, represents then that contact breaker gap is somewhat little on a left side.If pointer 9 is motionless, illustrate that platinum is not opened or contact ground connection; If pointer 9 points to right several the 3rd section, represent that its gap ablates more greatly or.Right several second section of this segmental arc is used for detecting voltage status, and its indication range is 12-15V, points to right several the 3rd section as pointer 9, and the storage battery power shortage is described; Point to right several first section as pointer 9, illustrate that the voltage of electrical generator is too high.
2) down several second segmental arcs are divided into 3 sections again, have reflected situations such as fuel oil, water temperature state that also can measure portion model vehicle.
3) several first segmental arcs 6 have reflected the situation of machine oil and water temperature under.
4) two-lines C, E are arranged below calibrated disc 3, the instrument voltage stabilizer output graticule (7.0V and 8.6V) of representative liberation and east wind car.
The high voltage induction branch road is as the main contact K of K switch
0Beat to the 3rd secondary contact K
3The time, this part work is by aerotron T
2, T
3The high voltage pulse of induction "+" or "-" (because high-voltage ignition coil around to difference, may be exported "+" or "-" high pressure) is through aerotron T
1Amplify, make pointer 9 deflections.
It is directly perceived, simple, convenient that this multimeter uses, and cooperates the simple explanation book, rapidly the various fault institute of machines motor vehicle.
For example: 1. electrical generator does not generate electricity, normal in the belt degree of tightness, storage battery is not during power shortage, a bit of survey generator field binding post, if pointer 9 is right several first section of down several the 3rd segmental arcs, the expression electrical generator has been broken, if pointer 9 is in right several the 3rd section of this segmental arc, even in the 4th section, be exactly that regulating control has problem so.2. do not work if any a cylinder in 6 cylinders of driving engine, can take this table to remove the other induction of each cylinder high tension cord high pressure, when a certain cylinder of induction, needle deflection is inconsistent with other, and the spark of this cylinder is plugged with problem.
Claims (4)
1. self-propelled vehicle special multi-purpose table, comprise shell (1), have the gauge outfit (2), the calibrated disc (3) on the gauge outfit (2) of pointer (9), positive test pencil (4), negative test pencil (5), testing circuit (7), it is characterized in that the center of circle that described calibrated disc (5) is gone up with pointer (9) is the center of circle, be provided with the segmental arc (6) of the state that is used for representing the electric capacity of surveying, voltage, fuel oil, machine oil, water temperature, pressure regulator.
2. multimeter according to claim 1 is characterized in that described testing circuit (6) comprises and described positive test pencil (4), the negative corresponding positive pole (V that links of test pencil (5)
+) and negative pole (V
-), between is provided with one by light-emitting diode (D
1) and the first resistance (R
1) the polarity of voltage indication branch road that constitutes of series connection; With this branch road leading role's contact (K that is in parallel by described gauge outfit (2) and single-pole triple-throw switch (K)
0), the first secondary contact (K
1) the second resistance (R
2), reverse protection diode (D
3) the voltage measurement branch road that constitutes; Second secondary contact (the K at switch (K)
2) and the second resistance (R
2) and diode (D
3) point of contact between be provided with one by the 3rd resistance (R
3), zener diode (D
2) the voltage broadening branch road that constitutes.
3. multimeter according to claim 2 is characterized in that the 3rd contact (K at described switch (K)
3) and negative pole (V
-) between be connected with a high-tension coil high voltage induction branch road, it comprises that one is connected in the 3rd secondary contact (K of described switch (K)
3) and negative pole (V
-) between the first aerotron (T
1), its collecting electrode and described the 3rd secondary contact (K
3) link its emitter-base bandgap grading and negative pole (V
-) link, be connected with one between its base stage and the emitter-base bandgap grading by potential device (R
4) the inclined to one side value circuit that constitutes, between its collecting electrode and base stage, be parallel with two aerotron (T of NPN, positive-negative-positive complementation
2, T
3), at these two aerotron (T
2, T
3) base stage on be connected with a high voltage induction sheetmetal (8) separately.
4. according to claim 1,2 or 3 described multimeters, it is characterized in that on described shell (1), being provided with magnet (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01273614 CN2507722Y (en) | 2001-11-28 | 2001-11-28 | Multipurpose meter specially adapted for motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01273614 CN2507722Y (en) | 2001-11-28 | 2001-11-28 | Multipurpose meter specially adapted for motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2507722Y true CN2507722Y (en) | 2002-08-28 |
Family
ID=33678513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01273614 Expired - Fee Related CN2507722Y (en) | 2001-11-28 | 2001-11-28 | Multipurpose meter specially adapted for motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2507722Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2743863C1 (en) * | 2020-05-24 | 2021-03-01 | Задорожный Артем Анатольевич | Method for detecting radio transmitting devices on the bottom and body parts of a vehicle and a device for its implementation |
-
2001
- 2001-11-28 CN CN 01273614 patent/CN2507722Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2743863C1 (en) * | 2020-05-24 | 2021-03-01 | Задорожный Артем Анатольевич | Method for detecting radio transmitting devices on the bottom and body parts of a vehicle and a device for its implementation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |