CN2594086Y - Precisive inspecting alarm for status of automotive electric power system - Google Patents
Precisive inspecting alarm for status of automotive electric power system Download PDFInfo
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- CN2594086Y CN2594086Y CN 03235215 CN03235215U CN2594086Y CN 2594086 Y CN2594086 Y CN 2594086Y CN 03235215 CN03235215 CN 03235215 CN 03235215 U CN03235215 U CN 03235215U CN 2594086 Y CN2594086 Y CN 2594086Y
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Abstract
The utility model relates to an inspecting alarm for status of an electric power system, particularly an inspecting alarm for status of an automotive electric power system. The inspecting alarm comprises an electronic circuit composed of an amplifier or a comparator integrated block and peripheral electronic elements. A comparison circuit is composed of the amplifier or the comparator integrated block and other elements. Inspecting signals are taken from voltage division of an automotive power supply and are input to the equidirectional input terminal or the inverse input terminal of the comparator. The voltage of the automotive power supply is stabilized via a voltage stabilizing circuit and the automotive power supply provides reference signals to be input to the reverse input terminal or the equidirectional input terminal of the comparator. An alarm element is connected between the output terminal of the comparator and the power supply. The instrument can be arranged at the position of the original charge indicating lamp of the automobile, and has the function of charging and discharging a current meter and a voltage meter. The instrument has the advantages of small power consumption, high reliability in work, long service life, and accurate and convenient use.
Description
One. technical field: the utility model relates to a kind of electric system state monitor, particularly relates to the automobile-used electric system state-detection of a kind of high precision annunciator.
Two. background technology: along with science and technology development, Modern Traffic, transportation means more and more use Eltec and electrified equipment, vehicle performance is more and more higher for the dependence of power supply, in order to guarantee normal, the safety traffic of automobile etc., voltage height and the electrical work situation of understanding and grasping electrical generator, storage battery and the circuit of its power-supply system at any time seem very important.
In automobile power system, just adopt charging indicator light to indicate whether normal power generation of electrical generator the earliest, but can not reflect other parameter relevant, increase the charging and discharging currents table afterwards, in order to observe the size of storage battery charge and discharge situation and charge and discharge electric current with generating.Though the situation that indicator lamp and amperemeter/ammtr can be indicated the power-supply system generating, be discharged and recharged, but can not indicate power line voltage, and the working current of charging and discharging currents and electrical equipment is determined by voltage swing under automobile circuit and load unmodified situation, so only observe the numerical value that whether generates electricity with charging and discharging currents, can't accurately grasp the actual conditions of generator for electricity generation and accumulator cell charging and discharging, Chang Fashengyin generator voltage imbalance in actual use causes accumulator super-charge, crosses the phenomenon of putting and damage because of overtension vehicular electrical appliances such as storage battery and car light.
Generally speaking, the service condition of automobile power source, electrical equipment has only with relative magnitude of voltage and could rationally reflect exactly, the height of magnitude of voltage can not only reflect generating situation, the charging and discharging of accumulator situation of electrical generator, whether the voltage that can also reflect storage battery behind the automobile stagnation of movement falls situation after rise, and can judge storage battery in view of the above and discharge; Loss in voltage in the time of also can be according to automobile starting is judged the degree of aging and the performance of storage battery; And whether automobile generating and electricity consumption situation even vehicle electrical system have fault to reflect from the height of magnitude of voltage and the size variation of voltage.So development along with automotive electronic technology, some producer has adopted volt meter to replace the charging and discharging currents table to indicate the situation of generator for electricity generation, current consumer electricity consumption and accumulator cell charging and discharging on novel, high-grade automobile, but volt meter belongs to passive type and shows, need chaufeur to pay attention to observation and just can obtain numerical value, repeatedly observing not often, fault occurs, the decline in alertness that causes easily of a specified duration can not in time be found due operating needs of out of reach and effect when causing fault to take place.
Three. utility model content: technical problem to be solved in the utility model: at the deficiency that background technology exists, the utility model provides the automobile-used electric system state-detection of a kind of high precision annunciator.
The technical scheme that the utility model adopted: the automobile-used electric system state-detection of a kind of high precision annunciator, contain the electronic circuit that amplifier or comparator integrated package and peripheral electron element constitute, adopt elements such as amplifier or comparator integrated package to form comparator circuit, detection signal is taken from the dividing potential drop of power supply on vehicle, input comparator in the same way or reverse input end, power supply on vehicle is through the mu balanced circuit voltage stabilizing, reference signal is provided, be input to oppositely or the in the same way input end of comparator, be connected to the caution element between the mouth of comparator and the power supply.
Comparator can be used LM series, μ A series, CA series, SG series, integrated packages such as μ PC series, as 3302,2901,339,51209,75339,17339 etc., comparator circuit also can select device, the low electronic component that selects device, gate circuit etc. to have the contrast effect to form by crystal triode, height, and its working power or reference signal also can be provided by external power supply, can be light-emitting diode, buzzer phone or musical film with the mouth bonded assembly caution element of comparator, can connect instructed voltage table or amperemeter/ammtr in both ends of power or the load circuit.
The amplifier of composition comparator circuit or comparator and caution element are at least one group.
Comparator is four, light-emitting diode is three, power supply on vehicle is through resistance R 0, R1, the R2 dividing potential drop, the dividing potential drop of getting R2 is as detection signal, insert comparator AR1 respectively, AR2, APR3 in the same way or the oppositely or in the same way input end of reverse input end and AR4, power supply on vehicle is after current-limiting resistance and zener diode voltage stabilizing, through resistance R 3～R7 dividing potential drop, voltage division signal respectively as the oppositely or in the same way input end of reference signal input AR1～AR3 and AR4 in the same way or reverse input end, the mouth short circuit of AR1 and AR4 is formed or door, insert power supply "+" end through LED 1 and current-limiting resistance, the mouth of AR2 and AR3 is respectively through LED 3, the LED2 and current-limiting resistance power connection "+" utmost point.
Adopt eight comparators and eight light-emitting diodes, resistance R 1, R2 series connection insert the power supply on vehicle two ends, the dividing potential drop of getting R2 respectively oppositely the or in the same way input end of the input end forward or backwards of input comparator AR3～AR8 and AR1, AR2 as detection signal, power supply on vehicle is through the zener diode voltage stabilizing, voltage stabilizing output through resistance R 3～R8 dividing potential drop respectively as the oppositely or in the same way input end of reference signal input AR3～AR8 and AR1, AR2 in the same way or reverse input end, the mouth of AR1～AR8 is connected in series light-emitting diode respectively and current-limiting resistance inserts power supply "+" end.
The resistance that relates in the circuit can be fixed resistance value or variable resistance, can be shared one with the current-limiting resistance of light-emitting diode series connection, and caution also available buzzer phone of element or musical film.
Positive beneficial effect of the present utility model: 1, automobile-used electric system state-detection annunciator is that core is made up of various electronic components with the voltage comparator circuit, adopt a plurality of comparator parallel runnings, obtain the voltage change signal of power supply on vehicle by testing circuit, the different reference voltages that are provided with inside compare, comparative result shows by the light-emitting diode of different colours, reflection electrical generator that can be accurately and timely, the mode of operation of storage battery etc. and the variation of power line voltage, the concurrent visual alarm of speaking, be convenient to the driver and grasp the electric system situation at any time, the prompting driver in time pinpoints the problems and makes and check processing.This detector can be installed in the position of former charging indicator light, can replace existing charging indicator light to do the charging indication, and has the repertoire of charging and discharging currents table and volt meter.
2, the utility model has solved general charging indicator light and amperemeter/ammtr and can only indicate that charge and can not indicate should electrically-charged defective, when overtension with cross the warning of sounding when low, omitted and checked, differentiated volt meter numerical value and according to the trouble of numerical value estimate of situation, make the driver can concentrate one's energy to drive, guaranteed traffic safety, little, the reliable operation of this instrument power consumption, life-span are long simultaneously, use accurately, convenient, have a extensive future, have higher society and economic benefit.
Four: description of drawings:
Fig. 1: one of automobile-used electric system state-detection annunciator circuit diagram of four comparators
Fig. 2: two of the automobile-used electric system state-detection annunciator circuit diagram of four comparators
Fig. 3: three of the automobile-used electric system state-detection annunciator circuit diagram of four comparators
Fig. 4: four of the automobile-used electric system state-detection annunciator circuit diagram of four comparators
Fig. 5: one of automobile-used electric system state-detection annunciator circuit diagram of eight comparators
Fig. 6: two of the automobile-used electric system state-detection annunciator circuit diagram of eight comparators
Five. the specific embodiment:
Embodiment one: referring to Fig. 1, two external pin V+ of this circuit and V-connect the both positive and negative polarity of automobile power source (also being working power simultaneously) respectively, resistance R 0, R1, the R2 series connection is between the both positive and negative polarity of power supply, detection signal is taken from the dividing potential drop of R2, by R1, AR1 in the node a difference input comparator of R2, AR2, the in-phase input end of AR3 and the inverting input of AR4, resistance R 8 and zener diode DW1 form serial regulating circuit, provide stable working power to comparator on the one hand, this voltage stabilizing is through resistance R 4 on the other hand, R5, R6, the R7 dividing potential drop, import AR1 respectively, AP2, the inverting input of AR3 and the in-phase input end of AR4, as reference voltage signal, by their resistance of choose reasonable, make 4 node b, c, d, the partial pressure value at e place is automobile and the character voltage value of storage battery when different conditions, R0 is a variable resistance, its effect is accurately to adjust the intrinsic standoff ratio that a is ordered, and guarantees the detection and the display precision of entire circuit.
The mouth of AR2, AR3 links to each other with LED 3, LED2 respectively, the mouth of AR1, AR4 is connected to form OR circuit and gives the g point mutually, link to each other with LED 1, LED1, LED2, LED3 are set to different colours, be connected in series current-limiting resistance R11, R10, R9 access power supply "+" utmost point respectively, R9, R10, R11 are variable resistance.AR1, AR4 also can separate and control a light-emitting diode separately.
When electrical generator is working properly, the magnitude of voltage that adjustment a is ordered makes its reference voltage of ordering just greater than d, and at this moment the mouth of 4 comparators all is in high potential, and LED 1, LED2, LED3 all end, be in and extinguish state, expression is generated electricity, charge condition is normal.If the electrical generator this moment voltage that causes out of control raises, the a point voltage is also along with rising, e point reference voltage rationally is set, the a point voltage was higher than the e point voltage after power line voltage was raise, be the voltage that the inverting input voltage of comparator AR4 is higher than in-phase input end, then its mouth will become active potential by original high potential, and LED 1 just by by becoming conducting and luminous, shows that charging valtage is too high.After trouble removal promptly recovered normally, LED 1 went out.If the electric energy generated of electrical generator reduces or does not generate electricity for a certain reason, or the power consumption of automobile is excessive, the electric weight that electrical generator provided is not enough, then by storage battery power supply, the very fast obvious decline of battery tension, the a point voltage is also along with reduction, because a point voltage the when reference voltage that d is ordered just is slightly less than the electrical generator normal operation, in case electric energy generated slightly reduces, the voltage that a is ordered will be lower than the reference voltage that d is ordered, be the voltage that the in-phase input end voltage of comparator AR3 is lower than inverting input, mouth will become active potential by high potential, LED 2 shows that charging valtage (during mode of operation) on the low side or accumulator electric-quantity are discontented or also is not full of (before and after just having started) by by becoming conducting and luminous.Really belong to due to the vehicle failure if voltage reduces, power line voltage will not continue to reduce before having trouble-shooting, at this moment a point voltage also will be along with reduction, in case the voltage that a is ordered is lower than the voltage that c is ordered, the in-phase input end voltage of comparator AR2 also just is lower than the voltage of its inverting input, the mouth of AR2 becomes active potential by high potential, LED 3 is by by becoming conducting and luminous, show that charging valtage is obviously on the low side, perhaps electrical generator generation outage, this will cause accumulator electric-quantity sharply to consume.The corresponding voltage value place that the magnitude of voltage that b is ordered is arranged on storage battery can not satisfy normal use the time, if dropping to, the voltage that a is ordered is lower than the b point, then comparator AR1 mouth becomes active potential by high potential, LED 1 conducting is shinny, three light-emitting diodes are in illuminating state entirely, and purpose is an alerting driver: the electric weight deficiency in the storage battery! If continue to use, will shorten the service life of storage battery.
In addition, can add resistance R 10 and LED 4 in circuit, the two series connection inserts the position of the former charging indicator light of automobile, or between the excitation end and bonding of voltage regulator, be the excitation coil two ends of alternating current generator, in order to show whether electrical generator generates electricity.
Embodiment two: referring to Fig. 2, this example is that circuit is simplified in the enforcement of embodiment one, LED 1, the shared load resistor R9 of LED2, LED3, and working process and principle do not repeat with embodiment one.
Embodiment three: referring to Fig. 3, this example is with the difference of embodiment one: be connected a buzzer phone between the LED 1 of AR1, AR4 mouth and the power supply, or musical film, when appearring in electric system, overtension or accumulator electric-quantity deficiency carry out the sound alarm.Working process and principle do not repeat with embodiment one.
Embodiment four: referring to Fig. 4, this example is with the difference of embodiment one: the reverse input end of detection signal input comparator AR1, AR2, AR3 and the input end in the same way of AR4, the input end in the same way of reference signal input comparator AR1, AR2, AR3 and the reverse input end of AR4.At this moment, mouth light-emitting diode light on and off state is opposite with embodiment 1, promptly generating situation, circuit and electrical equipment just often all indicator lamps be in shinny state, in case situation is unusual or the voltage of electric system raises or reduce, corresponding indicator lamp extinguishes.
Embodiment five: referring to Fig. 5, comparator and light-emitting diode respectively are 8.Among the figure, automobile power source is that working power provides detection signal again, circuit+,-two termination automobile power source both positive and negative polarities, resistance R 1, R2 is connected in series both ends of power, the dividing potential drop of getting R2 is as detection signal, difference input comparator AR1, the input end in the same way of AR2 and the reverse input end of AR3～AR8, resistance R 19 and zener diode DW1 form mu balanced circuit, provide working power to comparator on the one hand, rationally adjust the partial pressure value of divider resistance R3～R10 simultaneously, import AR1 respectively, the input end in the same way of the reverse input end of AR2 and AR3～AR8 is the reference signal of device as a comparison, light-emitting diode D1～D8 series resistance R11～R18 respectively inserts positive source, the reference voltage contrast of detection signal and setting, the light on and off of control light-emitting diode, can demonstrate respectively: overtension, regulated value is too high, whether generate electricity, regulated value is low excessively, the storage battery electric weight is full, storage battery electric weight deficiency, the storage battery electric weight will be use up, storage battery does not have electricity not possess working ability etc.Working process and principle do not repeat with embodiment one.
Embodiment six: referring to Fig. 6, this example only is detection signal or the reference signal same, the reverse input end input of comparator AR1～AR8 are exchanged with the difference of embodiment five.Comparing result only change light-emitting diode bright, state goes out.
Certainly, above embodiment can be flexible, and what and show state of product circuit structure, comparator can be adjusted according to customer requirements, make its function more comprehensive, use convenient.
Claims (7)
1. the automobile-used electric system state-detection of high precision annunciator, contain the electronic circuit that amplifier or comparator integrated package and peripheral electron element constitute, it is characterized in that: adopt elements such as amplifier or comparator integrated package to form comparator circuit, detection signal is taken from the dividing potential drop of power supply on vehicle, input comparator in the same way or reverse input end, power supply on vehicle is through the mu balanced circuit voltage stabilizing, reference signal is provided, be input to oppositely or the in the same way input end of comparator, be connected to the caution element between the mouth of comparator and the power supply.
2. detection annunciator according to claim 1, it is characterized in that: comparator can be used LM series, μ A series, CA series, SG series, integrated packages such as μ PC series are as 3302,2901,339,51209,75339,17339 etc., comparator circuit also can be by crystal triode, height selects device, the low electronic component that selects device etc. to have the contrast effect is formed, its working power or reference signal also can be provided by external power supply, warn element with the mouth bonded assembly of comparator and can be light-emitting diode, buzzer phone or musical film can connect instructed voltage table or amperemeter/ammtr in both ends of power or the load circuit.
3. detection annunciator according to claim 1 and 2 is characterized in that: the amplifier of composition comparator circuit or comparator and caution element are at least one group.
4. detection annunciator according to claim 1 and 2, it is characterized in that: comparator is four, light-emitting diode is three, power supply on vehicle is through resistance R 0, R1, the R2 dividing potential drop, the dividing potential drop of getting R2 is as detection signal, insert comparator AR1 respectively, AR2, AR3 in the same way or the oppositely or in the same way input end of reverse input end and AR4, power supply on vehicle is after current-limiting resistance and zener diode voltage stabilizing, through resistance R 3～R7 dividing potential drop, voltage division signal respectively as the oppositely or in the same way input end of reference signal input AR1～AR3 and AR4 in the same way or reverse input end, the mouth short circuit of AR1 and AR4 is formed or door, insert power supply "+" end through LED 1 and current-limiting resistance, the mouth of AR2 and AR3 is respectively through LED 3, the LED2 and current-limiting resistance power connection "+" utmost point.
5. detection annunciator according to claim 4 is characterized in that: the resistance that relates in the circuit can be fixed resistance value or variable resistance, can be shared one with the current-limiting resistance of light-emitting diode series connection, and caution also available buzzer phone of element or musical film.
6. detection annunciator according to claim 1 and 2, it is characterized in that: adopt eight comparators and eight light-emitting diodes, resistance R 1, the R2 series connection inserts the power supply on vehicle two ends, get input end forward or backwards and the AR1 of dividing potential drop difference input comparator AR3～AR8 of R2, oppositely or the in the same way input end of AR2 is as detection signal, power supply on vehicle is through the zener diode voltage stabilizing, voltage stabilizing output through resistance R 3～R8 dividing potential drop respectively as oppositely or in the same way input end and the AR1 of reference signal input AR3～AR8, AR2 in the same way or reverse input end, the mouth of AR1～AR8 is connected in series light-emitting diode and current-limiting resistance respectively and inserts power supply "+" end.
7. detection annunciator according to claim 6 is characterized in that: the resistance that relates in the circuit can be fixed resistance value or variable resistance, can be shared one with the current-limiting resistance of light-emitting diode series connection, and caution also available buzzer phone of element or musical film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03235215 CN2594086Y (en) | 2003-01-13 | 2003-01-13 | Precisive inspecting alarm for status of automotive electric power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03235215 CN2594086Y (en) | 2003-01-13 | 2003-01-13 | Precisive inspecting alarm for status of automotive electric power system |
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| Publication Number | Publication Date |
|---|---|
| CN2594086Y true CN2594086Y (en) | 2003-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03235215 Expired - Fee Related CN2594086Y (en) | 2003-01-13 | 2003-01-13 | Precisive inspecting alarm for status of automotive electric power system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085408A (en) * | 2018-08-27 | 2018-12-25 | 惠州Tcl移动通信有限公司 | The method of battery voltage detection circuit and maintenance cdma communication waveform, medium |
| CN117420384A (en) * | 2023-10-13 | 2024-01-19 | 滨州新大新机电科技有限公司 | Redundant power supply power failure alarm method and circuit |
-
2003
- 2003-01-13 CN CN 03235215 patent/CN2594086Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085408A (en) * | 2018-08-27 | 2018-12-25 | 惠州Tcl移动通信有限公司 | The method of battery voltage detection circuit and maintenance cdma communication waveform, medium |
| CN109085408B (en) * | 2018-08-27 | 2020-11-13 | 惠州Tcl移动通信有限公司 | Battery voltage detection circuit, method for maintaining CDMA communication waveform, and medium |
| CN117420384A (en) * | 2023-10-13 | 2024-01-19 | 滨州新大新机电科技有限公司 | Redundant power supply power failure alarm method and circuit |
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| 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 |