CN202815196U - Power supply power quantity monitoring system - Google Patents
Power supply power quantity monitoring system Download PDFInfo
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- CN202815196U CN202815196U CN201220468891XU CN201220468891U CN202815196U CN 202815196 U CN202815196 U CN 202815196U CN 201220468891X U CN201220468891X U CN 201220468891XU CN 201220468891 U CN201220468891 U CN 201220468891U CN 202815196 U CN202815196 U CN 202815196U
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Abstract
The utility model discloses a power supply power quantity monitoring system which comprises a power supply and a load. The load switches the positive pole and the negative pole of the power supply. The power supply power quantity monitoring system further comprises a first monitoring unit. The first monitoring unit is connected in parallel with the power supply. The first monitoring unit comprises a first light-emitting diode and a first switch. The first light-emitting diode is connected with the collector of the first switch. The base of the first light-emitting diode is connected in parallel with a first resistor and is connected in parallel with the power supply. According to the utility model, the power supply voltage is monitored in real time; charging and power supply condition detection are carried out in time; and the use of the power supply and the load are effectively protected.
Description
Technical field
The utility model relates to the power supply on vehicle field, relates in particular to a kind of electric quantity of power supply monitoring system.
Background technology
Along with economic development, various vehicles have entered huge numbers of families.And each vehicle-mounted electronic product also is widely used.The power supply of these electronic products all is the battery that derives from vehicle, do not make effective monitoring for the battery of vehicle in the prior art, thereby, in the process of using, can't observe the operating position of battery, can't normally effectively determine how to use the work of battery and load, be easy to the damage that in use suddenly outage causes load, consume for a long time, can not in time power, also cause easily the damage of battery.
The utility model content
For the problem of above-mentioned existence, the purpose of this utility model provides a kind of electric quantity of power supply monitoring system, can monitor in time the operating position of power supply on vehicle, has overcome traditional technical matters that can't effectively effectively detect in real time the operating position of power supply on vehicle.
The purpose of this utility model is achieved through the following technical solutions:
A kind of electric quantity of power supply monitoring system, comprise power supply, load, positive pole and the negative pole of described power supply connected in described load, wherein, also comprises the first monitoring means, described the first monitoring means is in parallel with described power supply, described the first monitoring means comprises the first light emitting diode and the first switch, and described the first light emitting diode is connected to the collector of described the first switch, and the base stage of described the first light emitting diode the first resistance in parallel is in parallel with described power supply.
Above-mentioned electric quantity of power supply monitoring system, wherein, described observation circuit also comprises the second monitoring means, described the second detecting unit is in parallel with described the first monitoring means, described the second monitoring means comprises the second light emitting diode, second switch, described the second light emitting diode is connected the described positive source of access with the collector of described second switch, the base stage of described the second light emitting diode the second resistance in parallel accesses described power cathode.
Above-mentioned electric quantity of power supply monitoring system, wherein, described the first monitoring means also comprises the 3rd resistance and the first voltage stabilizing diode, described the 3rd resistance be connected voltage stabilizing diode and be connected with described power supply, described the 3rd resistance is connected with described the first resistance.
Above-mentioned electric quantity of power supply monitoring system, wherein, described the second monitoring means also comprises the 4th resistance and the second voltage stabilizing diode, and described the 4th resistance and the second voltage stabilizing diode are in parallel with described the first monitoring means, and described the 4th resistance, described the second voltage stabilizing diode are connected with described the 3rd resistance.
Above-mentioned electric quantity of power supply monitoring system wherein, also comprises the 3rd monitoring means, and described the 3rd monitoring means comprises the 3rd light emitting diode, and described the 3rd light emitting diode is in parallel with described the second monitoring means.
Above-mentioned electric quantity of power supply monitoring system, wherein, the light emitting diode that described the first light emitting diode, described the second light emitting diode and described the 3rd light emitting diode are different colours.
Above-mentioned electric quantity of power supply monitoring system, wherein, the resistance value of described the first resistance, the second resistance, the 3rd resistance and the 4th resistance is unequal.
Compared with prior art, the beneficial effects of the utility model are:
A kind of electric quantity of power supply monitoring system that the utility model provides; utilize this observation circuit can be when power supply is for load supplying; realize in real time supply voltage being monitored, in time charge and detect the power supply situation, effectively protected the use of power supply and load.
Description of drawings
Fig. 1 is the circuit connection diagram of a kind of electric quantity of power supply monitoring system of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with schematic diagram and concrete operations embodiment.
As shown in fig. 1, a kind of electric quantity of power supply monitoring system, comprise power supply 1, load 2, positive pole and the negative pole of load 2 pluggeds 1, wherein, comprise that also the first monitoring means 3, the first monitoring means 3 are in parallel with load 2, the first monitoring means comprises the first light emitting diode 31 and the first switch 32, the first light emitting diode 31 is connected to the collector of the first switch 32, the base stage of the first light emitting diode 32 the first resistance 33 and in parallel with power supply 1 in parallel is in the enforcement, when power supply is sufficient, can conducting the first switch 32, thereby so that the first light emitting diode 31 is shinny; When supply voltage was lower than certain threshold value, the first switch 32 disconnected, and this moment, the first light emitting diode 31 was no longer shinny.
In another embodiment of the present utility model, also comprise the second monitoring means 4, the second detecting unit 4 is in parallel with the first monitoring means 3, particularly, this second monitoring means comprises the second light emitting diode 41, second switch 42, the second light emitting diode 41 is connected the positive pole that accesses power supply 1 with the collector of second switch 42, the negative pole of the base stage of the second light emitting diode 41 the second resistance in parallel 43 access power supplys 1;
In addition, the first monitoring means 3 also comprises the 3rd resistance 34 and the first voltage stabilizing diode 35, the 3rd resistance 34 and the first voltage stabilizing diode 35 are composed in series a branch road, and this three resistance 34 is connected with the first resistance 33, this branch road is connected with described power supply, and its this voltage stabilizing diode 35 connects for the reverse breakdown conducting.
Wherein, the second monitoring means 4 comprises that also the 4th resistance 44 and the second voltage stabilizing diode 45, the four resistance 44 and the second voltage stabilizing diode 45 are in parallel with the first monitoring means 3, and the 4th resistance 44, the second voltage stabilizing diode 45 are connected with the 3rd resistance 34.
Comprise that also the 3rd monitoring means 5, the three monitoring means 5 comprise that the 3rd light emitting diode 51, the three light emitting diodes 51 are in parallel with the second monitoring means 4.
In the enforcement, power supply 1 is connected with cigar lighter or the Vehicular battery of vehicle interior, and in the time of load 2 work, monitoring system is also started working.
When battery electric quantity was normally fuller, the voltage of power supply 1 was more than 12V.Wherein, the first zener diode 35 and the second zener diode 45 are respectively the accurate stabilivolt of 10V voltage stabilizing value, at this moment, the first zener diode 35 and the second zener diode 45 puncture respectively conducting, and the first also simultaneously respectively conducting of switch 32 and second switch 42, the first light emitting diode 31, the second light emitting diode 41, the 3rd light emitting diode 51 are lighted simultaneously.Illustrate battery electric quantity than compared with normal this moment, and prompting vehicle user battery is normal.
When battery electric quantity generally should be noted that when safeguarding, the voltage of the power supply 1 of this moment is at 11.5V
0.3V the time, the first zener diode 35 and the second zener diode 45 or simultaneously conducting, wherein, the resistance of the first resistance 33, the second resistance 43, the 3rd resistance 34, the 4th resistance 44 is not identical.And this moment, because the dividing potential drop effect of the first resistance 33 and the 3rd resistance 34 makes the first switch 32 be in closed condition, thereby, 31 cut-offs of the first light emitting diode.And the second light emitting diode 41 is in open mode owing to the dividing potential drop effect of the second resistance 43 and the 4th resistance 44, and at this moment, the second light emitting diode 41 is lighted, and the 3rd light emitting diode 51 is lighted.Illustrate that battery electric quantity is not good enough this moment, and the prompting vehicle user should be noted the battery operating position, preferably uses outer charger to mend electricity as battery.
In addition, when the first light emitting diode 31 and the second light emitting diode 41 all can not be lighted, when only having the 3rd light emitting diode 51 to light, the short of electricity that Vehicular battery is more serious is described, for example, voltage may not carry out normal ignition trigger about 11V, need to overhaul to the detection place of specialty.
In an embodiment of the present invention, in order more clearly to distinguish the voltage operating position of power supply 1, the first light emitting diode 31, the second light emitting diode 41 and the 3rd light emitting diode 51 use the light emitting diode that sends the different colours light, for example, the first light emitting diode 31 is the diode of green glow, the second light emitting diode 41 is the diode of gold-tinted, and 51 of the 3rd light emitting diodes are the light emitting diodes that sends red light.
More than specific embodiment of the utility model is described in detail, but the utility model is not restricted to specific embodiment described above, it is just as example.To those skilled in the art, any equivalent modifications and alternative also all among category of the present utility model.Therefore, not breaking away from impartial conversion and the modification of having done under the spirit and scope of the present utility model, all should be encompassed in the scope of the present utility model.
Claims (7)
1. electric quantity of power supply monitoring system, comprise power supply, load, positive pole and the negative pole of described power supply connected in described load, it is characterized in that, also comprises the first monitoring means, described the first monitoring means is in parallel with described power supply, described the first monitoring means comprises the first light emitting diode and the first switch, and described the first light emitting diode is connected to the collector of described the first switch, and the base stage of described the first light emitting diode the first resistance in parallel is in parallel with described power supply.
2. electric quantity of power supply monitoring system according to claim 1, it is characterized in that, described observation circuit also comprises the second monitoring means, described the second detecting unit is in parallel with described the first monitoring means, described the second monitoring means comprises the second light emitting diode, second switch, described the second light emitting diode is connected the described positive source of access with the collector of described second switch, the base stage of described the second light emitting diode the second resistance in parallel accesses described power cathode.
3. electric quantity of power supply monitoring system according to claim 1, it is characterized in that, described the first monitoring means also comprises the 3rd resistance and the first voltage stabilizing diode, described the 3rd resistance be connected voltage stabilizing diode and be connected with described power supply, described the 3rd resistance is connected with described the first resistance.
4. electric quantity of power supply monitoring system according to claim 1, it is characterized in that, described the second monitoring means also comprises the 4th resistance and the second voltage stabilizing diode, described the 4th resistance and the second voltage stabilizing diode are in parallel with described the first monitoring means, and described the 4th resistance, described the second voltage stabilizing diode are connected with described the 3rd resistance.
5. electric quantity of power supply monitoring system according to claim 2 is characterized in that, also comprises the 3rd monitoring means, and described the 3rd monitoring means comprises the 3rd light emitting diode, and described the 3rd light emitting diode is in parallel with described the second monitoring means.
6. electric quantity of power supply monitoring system according to claim 5 is characterized in that, the light emitting diode that described the first light emitting diode, described the second light emitting diode and described the 3rd light emitting diode are different colours.
7. according to claim 5 or 6 described electric quantity of power supply monitoring systems, it is characterized in that the resistance value of described the first resistance, the second resistance, the 3rd resistance and the 4th resistance is unequal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220468891XU CN202815196U (en) | 2012-09-14 | 2012-09-14 | Power supply power quantity monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220468891XU CN202815196U (en) | 2012-09-14 | 2012-09-14 | Power supply power quantity monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202815196U true CN202815196U (en) | 2013-03-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220468891XU Expired - Lifetime CN202815196U (en) | 2012-09-14 | 2012-09-14 | Power supply power quantity monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202815196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561451A (en) * | 2017-08-24 | 2018-01-09 | 苏州麦喆思科电子有限公司 | A kind of lithium power supply energy-saving type electric quantity monitoring alarm set |
-
2012
- 2012-09-14 CN CN201220468891XU patent/CN202815196U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561451A (en) * | 2017-08-24 | 2018-01-09 | 苏州麦喆思科电子有限公司 | A kind of lithium power supply energy-saving type electric quantity monitoring alarm set |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |
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| CX01 | Expiry of patent term |