CN104701945B - The supervising device of uninterrupted power source accumulator charging voltage - Google Patents
The supervising device of uninterrupted power source accumulator charging voltage Download PDFInfo
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- CN104701945B CN104701945B CN201510115561.0A CN201510115561A CN104701945B CN 104701945 B CN104701945 B CN 104701945B CN 201510115561 A CN201510115561 A CN 201510115561A CN 104701945 B CN104701945 B CN 104701945B
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Abstract
The embodiment of the invention discloses a kind of supervising device of uninterrupted power source accumulator charging voltage, is related to uninterrupted power source technical field.The device includes：The voltage acquisition shunt circuit that is sequentially connected, DC voltage compare circuit, NAND gate level process circuit and alarm indicator circuit；The voltage acquisition shunt circuit includes one for connecting the relay of charging voltage；The DC voltage compares circuit and includes upper voltage limit input point, lower voltage limit input point and control source to be measured point；The control source point to be measured is connected with the voltage acquisition shunt circuit.The present invention can solve the problem that current UPS chargers there may be the too high or too low situation of charging voltage when charging to accumulator, cause the battery of UPS accumulator to hold Electricity Functional decline, and service life shortens, the problem that accumulator plate is damaged.
Description
Technical field
The present invention relates to uninterrupted power source technical field, more particularly to a kind of prison of uninterrupted power source accumulator charging voltage
Control device.
Background technology
Uninterrupted power source (Uninterruptible Power Supply, abbreviation UPS) is that accumulator is connected with main frame
Connect, unidirectional current is converted into by modular circuits such as main frame inverters for the system equipment of civil power.UPS is mainly used in calculating to separate unit
Machine, computer network system or other power electronic equipments such as electromagnetic valve, pressure transmitter etc. provide stable, continual electric power
Supply.
However, current UPS chargers there may be the too high or too low situation of charging voltage when charging to accumulator,
The battery of UPS accumulator is caused to hold Electricity Functional decline, service life shortens, the problem that accumulator plate is damaged.
The content of the invention
Embodiments of the invention provide a kind of supervising device of uninterrupted power source accumulator charging voltage, current to solve
UPS chargers there may be the too high or too low situation of charging voltage when charging to accumulator, cause the battery of UPS accumulator
Hold Electricity Functional decline, service life shortens, the problem that accumulator plate is damaged.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
A kind of supervising device of uninterrupted power source accumulator charging voltage, including：
The voltage acquisition shunt circuit that is sequentially connected, DC voltage compare circuit, NAND gate level process circuit and report
Alert display circuit；
The voltage acquisition shunt circuit includes one for connecting the relay of charging voltage；
The DC voltage compares circuit and includes upper voltage limit input point, lower voltage limit input point and control source to be measured
Point；The control source point to be measured is connected with the voltage acquisition shunt circuit.
Specifically, the relay include charging voltage connecting interface, cover it is cored can variable resistance coil, first normally opened touch
Point, the first normally-closed contact, relay switch, gang switch, the second normally opened contact, the second normally-closed contact；The voltage acquisition point
Current circuit also includes a dropping resistor；
The positive pole of the charging voltage connecting interface respectively with it is described can variable resistance coil first end and the gang switch
Connection；The negative pole of the charging voltage connecting interface with it is described can the second end of variable resistance coil be connected；
The not moved end of the relay switch is connected with a voltage input end；
First normally opened contact is connected with the second end of the dropping resistor；Second normally-closed contact and the blood pressure lowering
The first end connection of resistance；
Second end of the dropping resistor is connected with the control source point to be measured.
Further, the DC voltage compares circuit and also includes first comparator and the second comparator；
The first input end of the first comparator is connected with the upper voltage limit input point；The of the first comparator
Two inputs are connected with the control source point to be measured；
The first input end of second comparator is connected with the control source point to be measured；The of second comparator
Two inputs are connected with the lower voltage limit input point.
Specifically, the NAND gate level process circuit include the first NAND gate circuit, the second NAND gate circuit, the 3rd with
Not circuit and the 4th NAND gate circuit；
The A inputs of first NAND gate circuit are connected with first resistor；The B inputs of first NAND gate circuit
It is connected with the A inputs of the outfan of the first comparator and second NAND gate circuit two-by-two；
The B inputs of the 4th NAND gate circuit are connected with second resistance；The A inputs of the 4th NAND gate circuit
It is connected with the B inputs of the outfan and second NAND gate circuit of second comparator two-by-two；
The A inputs and B inputs of the outfan of second NAND gate circuit and the 3rd NAND gate circuit is two-by-two
Connection.
Specifically, the alarm indicator circuit includes alarm for high voltage display circuit, normal display circuit and low pressure alarming
Display circuit；
The alarm for high voltage display circuit includes one first audion, the first light emitting diode and the first acoustical generator；Institute
The base stage for stating the first audion is connected with the outfan of first NAND gate circuit；
The normal display circuit includes one second audion, the second light emitting diode and the second generator；Described
The base stage of two audions is connected with the outfan of the 3rd NAND gate circuit；
The low pressure alarming display circuit includes one the 3rd audion, the 3rd light emitting diode and the 3rd generator；Institute
The base stage for stating the 3rd audion is connected with the outfan of the 4th NAND gate circuit.
The supervising device of uninterrupted power source accumulator charging voltage provided in an embodiment of the present invention, being capable of voltage acquisition shunting
Circuit collection can gather charging voltage, and by DC voltage compare that circuit compares with DC voltage that circuit obtains on ration the power supply
Pressure and lower voltage limit are compared, and produce high level or low level, so as to after NAND gate level process circuit, can
Control alarm indicator circuit is reported to the police, so, if UPS chargers occur when charging to accumulator, and charging voltage is too high or mistake
Low situation, can be known by the supervising device of the uninterrupted power source accumulator charging voltage of the present invention in time, and send warning,
To point out user to take safeguard procedures in time, it is to avoid the battery of UPS accumulator holds Electricity Functional decline, service life shortens, and stores
The problem that battery pole plates are damaged.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is that a kind of structure of the supervising device of uninterrupted power source accumulator charging voltage provided in an embodiment of the present invention is shown
It is intended to；
Structural representations of the Fig. 2 for the voltage acquisition shunt circuit in the embodiment of the present invention；
Fig. 3 compares the structural representation of circuit for the DC voltage in the embodiment of the present invention；
Structural representations of the Fig. 4 for the NAND gate level process circuit in the embodiment of the present invention；
Structural representations of the Fig. 5 for the alarm indicator circuit in the embodiment of the present invention；
Fig. 6 is the LM324 pins and encapsulation schematic diagram in the embodiment of the present invention；
Schematic diagrams of the Fig. 7 for the 74LS00 chips in the embodiment of the present invention；
Position views of the Fig. 8 for the supervising device of the uninterrupted power source accumulator charging voltage in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, a kind of supervising device 10 of uninterrupted power source accumulator charging voltage provided in an embodiment of the present invention,
Including：
The voltage acquisition shunt circuit 11, DC voltage being sequentially connected compares circuit 12, NAND gate level process circuit 13
And alarm indicator circuit 14.
The voltage acquisition shunt circuit 11 includes one for connecting the relay 15 of charging voltage.
DC voltage compares circuit 12 and includes that upper voltage limit input point 16, lower voltage limit input point 17 and voltage to be measured are defeated
Access point 18；The control source point to be measured 18 is connected with voltage acquisition shunt circuit 11.
It is specific as depicted in figs. 1 and 2, the relay 15 includes charging voltage connecting interface 19, covers cored variable
Resistance coil 20, the first normally opened contact 21, the first normally-closed contact 22, relay switch 23, gang switch 24, the second normally opened contact
25th, the second normally-closed contact 26；Voltage acquisition shunt circuit 11 also includes a dropping resistor 27.The relay 15 can be pressure-variable
Bidirectional relay, can shunt the charging voltage of the charging voltage and outlier of normal value.
The positive pole of charging voltage connecting interface 19 respectively with can variable resistance coil 20 first end and gang switch 24 be connected；Fill
The negative pole of piezoelectric voltage connecting interface 19 with can the second end of variable resistance coil 20 be connected.The not moved end of relay switch 23 is connected with one
Voltage input end 28.The voltage input end 28 is loaded with+5V voltages herein.
First normally opened contact 21 is connected with the second end of dropping resistor 27；The of second normally-closed contact 26 and dropping resistor 27
One end connects.
Second end of dropping resistor 27 is connected with control source point to be measured 18.
When the voltage normal range to be measured connected by the charging voltage connecting interface 19 in the voltage acquisition shunt circuit 11
For 5V to 15V, 15 attonity of relay, the voltage to be measured for being connected is carried out being depressured to 1.5V to 4V by dropping resistor 27
Afterwards, send into DC voltage and compare circuit 12.If voltage to be measured breaks more than 15V, 23 contact adhesive of relay switch, gang switch 24
Open, relay 15 compares device 12 to DC voltage and sends into+5V DC voltages.
Further, as shown in figures 1 and 3, the DC voltage compares circuit 12 and also includes first comparator 29 and second
Comparator 30.
The first input end 31 of first comparator 29 is connected with upper voltage limit input point 16；The second of first comparator 29 is defeated
Enter end 32 to be connected with control source point to be measured 18.
The first input end 33 of the second comparator 30 is connected with control source point to be measured 18；The second of second comparator 30 is defeated
Enter end 34 to be connected with lower voltage limit input point 17.
Specifically, as shown in fig. 6, the DC voltage compares circuit 12 can be realized by a LM324 operational amplifiers,
Four-operational amplifier of the LM324 family devices with differential input.LM324 pins as shown in Figure 6 and encapsulation figure：Each group of fortune
Calculate amplifier as shown in Figure 6.LM324 makees voltage comparator when the feedback resistance of amplifier is removed, and feedback resistance tends in other words
When infinitely great (open loop situations), it could be theoretically argued that the Open loop gain cofficient of amplifier also for it is infinitely great (it is actually very big, such as
LM324 amplifier Open loop gain cofficient 100dB, both 100,000 times).Now amplifier just forms a voltage comparator, and its output is not if
It is high level (V+), is exactly low level (V- or ground connection).When positive input terminal voltage is higher than negative input end voltage, amplifier output is high
Level.
Specifically, as shown in Figure 1 and Figure 4, NAND gate level process circuit 13 include the first NAND gate circuit 35, second with
Not circuit 36, the 3rd NAND gate circuit 37 and the 4th NAND gate circuit 38.
The A inputs of the first NAND gate circuit 35 are connected with first resistor 39, and first resistor 39 herein is 8K Ω；First
The B inputs of NAND gate circuit are connected two-by-two with the A inputs of the outfan of first comparator 29 and the second NAND gate circuit 36
Connect.
The B inputs of the 4th NAND gate circuit 38 are connected with second resistance 40, and second resistance 40 herein is 68K Ω；The
The B inputs two of the outfan and the second NAND gate circuit 36 of the A inputs of four NAND gate circuits 38 and the second comparator 30
Two connections.
The outfan of the second NAND gate circuit 36 is connected two-by-two with the A inputs and B inputs of the 3rd NAND gate circuit 37.
What deserves to be explained is, as shown in fig. 7, above-mentioned NAND gate level process circuit 13 can pass through a 74LS00 chips
To realize, 74LS00 chips are four input nand gates, and as shown in table 1, L represents low level to 74LS00 logic function tables, and H represents high
Level.
Table 1：
| Input | Input | Output |
| A | B | Y |
| L | L | H |
| L | H | H |
| H | L | H |
| H | H | L |
Specifically, as shown in Figure 1 and Figure 5, alarm indicator circuit 14 includes alarm for high voltage display circuit 41, normal display electricity
Road 42 and low pressure alarming display circuit 43.
The alarm for high voltage display circuit 41 includes one first audion 44, the first light emitting diode 45 and the first acoustical generator
46.The base stage of the first audion 44 is connected with the outfan of the first NAND gate circuit 35.The first above-mentioned light emitting diode 45 can
To send HONGGUANG.
Normal display circuit 42 includes one second audion 47, the second light emitting diode 48 and the second generator 49；The
The base stage of two audions 47 is connected with the outfan of the 3rd NAND gate circuit 37.The second above-mentioned light emitting diode 48 can send
Green glow.
Low pressure alarming display circuit 43 includes one the 3rd audion 50, the 3rd light emitting diode 51 and the 3rd generator
53；The base stage of the 3rd audion 50 is connected with the outfan of the 4th NAND gate circuit 38.The 3rd above-mentioned light emitting diode 51 can
To send gold-tinted.
The DC voltage compares the operation principle of circuit 12, NAND gate level process circuit 13 and alarm indicator circuit 14
It is,
DC voltage compares circuit 12 by adjusting upper and lower voltage, draws scope 1.5V of the normal voltage in the present embodiment
To 4V, the first light emitting diode 45 in alarm indicator circuit if voltage to be measured is more than 4V sends HONGGUANG, represents overvoltage warning,
If voltage to be measured is less than 1.5V, the 3rd light emitting diode 51 sends gold-tinted, represents under-voltage warning；If voltage to be measured in 1.5V and
Between 4V, then the second light emitting diode 48 sends green glow, represents normal.
Voltage to be measured is as shown in table 2 with the luminous relation of each diode：
Table 2：
The level that front end is input into is processed by 74LS00 chips NAND gate, DC voltage compares the two of device circuit 12
Individual outlet side, if wherein one end is low level, draws high level with high level and non-post, and then drives the alarm indicator electricity of rear end
Road 14；If two ends are only high level, that is, in normal voltage range, draw high level, and then drive after two NAND gate
Dynamic alarm indicator circuit 14 below, the 74LS00 chips can be driven with 5V voltages, and 74LS00 chips have four phases
Two same input nand gate circuits, can use as a not gate when NAND gate both feet short circuit, under-voltage and overvoltage circuit is led to
The output result of normal voltage can be obtained after crossing two NAND gate.DC voltage compare circuit 14 can by DC voltage with it is pre-
The normal voltage for first setting is compared, if DC voltage is more than the maximum normal voltage of setting, or less than the most small tenon of setting
Quasi- voltage, then DC voltage compare device circuit and send a low-voltage, otherwise send a high voltage.
Above-mentioned alarm indicator circuit 14, when the level which receives is high level, can allow triode to turn on, and then drive
Dynamic lumination of light emitting diode.In alarm for high voltage display circuit 41, normal display circuit 42, low pressure alarming display circuit 43, need
To pass through 1 kilo-ohm of resistance current limliting, Light-Emitting Diode can be made normally to show.As alarm indicator circuit 14 is needed in unidirectional current
Work under the high voltage of pressure comparator output, so alarm indicator circuit 14 needs a voltage reversal device, DC voltage to compare
The voltage inversion sent by device, and alarm indicator circuit 14 is worked.
What deserves to be explained is, the supervising device of uninterrupted power source accumulator charging voltage provided in an embodiment of the present invention is in work
As when be connected in parallel on UPS charger circuits, as shown in figure 8, illustrating the monitoring of uninterrupted power source accumulator charging voltage
The position of device.
The supervising device of uninterrupted power source accumulator charging voltage provided in an embodiment of the present invention, being capable of voltage acquisition shunting
Circuit collection can gather charging voltage, and by DC voltage compare that circuit compares with DC voltage that circuit obtains on ration the power supply
Pressure and lower voltage limit are compared, and produce high level or low level, so as to after NAND gate level process circuit, can
Control alarm indicator circuit is reported to the police, so, if UPS chargers occur when charging to accumulator, and charging voltage is too high or mistake
Low situation, can be known by the supervising device of the uninterrupted power source accumulator charging voltage of the present invention in time, and send warning,
To point out user to take safeguard procedures in time, it is to avoid the battery of UPS accumulator holds Electricity Functional decline, service life shortens, and stores
The problem that battery pole plates are damaged.
Apply specific embodiment to be set forth the principle and embodiment of the present invention in the present invention, above example
Explanation be only intended to help understand the device and its core concept of the present invention；Simultaneously for one of ordinary skill in the art,
According to the thought of the present invention, will change in specific embodiments and applications, in sum, in this specification
Appearance should not be construed as limiting the invention.
Claims (4)
1. a kind of supervising device of uninterrupted power source accumulator charging voltage, it is characterised in that include：
The voltage acquisition shunt circuit that is sequentially connected, DC voltage compare circuit, NAND gate level process circuit and report to the police aobvious
Show circuit；
The voltage acquisition shunt circuit includes one for connecting the relay of charging voltage；
The DC voltage compares circuit and includes upper voltage limit input point, lower voltage limit input point and control source to be measured point；
The control source point to be measured is connected with the voltage acquisition shunt circuit；
The relay include charging voltage connecting interface, cover it is cored can variable resistance coil, the first normally opened contact, first normally closed
Contact, relay switch, gang switch, the second normally opened contact, the second normally-closed contact；The voltage acquisition shunt circuit also includes
One dropping resistor；
The positive pole of the charging voltage connecting interface respectively with it is described can variable resistance coil first end and the gang switch be connected；
The negative pole of the charging voltage connecting interface with it is described can the second end of variable resistance coil be connected；
The not moved end of the relay switch is connected with a voltage input end；
First normally opened contact is connected with the second end of the dropping resistor；Second normally-closed contact and the dropping resistor
First end connection；
Second end of the dropping resistor is connected with the control source point to be measured.
2. the supervising device of uninterrupted power source accumulator charging voltage according to claim 1, it is characterised in that described straight
Stream voltage comparator circuit also includes first comparator and the second comparator；
The first input end of the first comparator is connected with the upper voltage limit input point；The second of the first comparator is defeated
Enter end to be connected with the control source point to be measured；
The first input end of second comparator is connected with the control source point to be measured；The second of second comparator is defeated
Enter end to be connected with the lower voltage limit input point.
3. the supervising device of uninterrupted power source accumulator charging voltage according to claim 2, it is characterised in that
The NAND gate level process circuit include the first NAND gate circuit, the second NAND gate circuit, the 3rd NAND gate circuit with
And the 4th NAND gate circuit；
The A inputs of first NAND gate circuit are connected with first resistor；The B inputs of first NAND gate circuit and institute
The A inputs for stating the outfan and second NAND gate circuit of first comparator connect two-by-two；
The B inputs of the 4th NAND gate circuit are connected with second resistance；The A inputs of the 4th NAND gate circuit and institute
The B inputs for stating the outfan and second NAND gate circuit of the second comparator connect two-by-two；
The outfan of second NAND gate circuit is connected two-by-two with the A inputs and B inputs of the 3rd NAND gate circuit.
4. the supervising device of uninterrupted power source accumulator charging voltage according to claim 3, it is characterised in that the report
Alert display circuit includes alarm for high voltage display circuit, normal display circuit and low pressure alarming display circuit；
The alarm for high voltage display circuit includes one first audion, the first light emitting diode and the first acoustical generator；Described
The base stage of one audion is connected with the outfan of first NAND gate circuit；
The normal display circuit includes one second audion, the second light emitting diode and the second generator；Described 2nd 3
The base stage of pole pipe is connected with the outfan of the 3rd NAND gate circuit；
The low pressure alarming display circuit includes one the 3rd audion, the 3rd light emitting diode and the 3rd generator；Described
The base stage of three audions is connected with the outfan of the 4th NAND gate circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510115561.0A CN104701945B (en) | 2015-03-17 | 2015-03-17 | The supervising device of uninterrupted power source accumulator charging voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510115561.0A CN104701945B (en) | 2015-03-17 | 2015-03-17 | The supervising device of uninterrupted power source accumulator charging voltage |
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| Publication Number | Publication Date |
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| CN104701945A CN104701945A (en) | 2015-06-10 |
| CN104701945B true CN104701945B (en) | 2017-04-05 |
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| CN201510115561.0A Active CN104701945B (en) | 2015-03-17 | 2015-03-17 | The supervising device of uninterrupted power source accumulator charging voltage |
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| CN112083529A (en) * | 2020-09-23 | 2020-12-15 | 四川天邑康和通信股份有限公司 | Coarse wavelength division multiplexer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100566068C (en) * | 2006-04-13 | 2009-12-02 | 艾默生网络能源系统有限公司 | Hardware overvoltage breaking-off circuit |
| CN202363927U (en) * | 2011-11-18 | 2012-08-01 | 四川湖山电器有限责任公司 | Intelligent efficient power supply module |
| CN202798112U (en) * | 2012-09-28 | 2013-03-13 | 漳州科华技术有限责任公司 | Full-isolating AC/DC hybrid input switching device |
| CN203607817U (en) * | 2013-07-08 | 2014-05-21 | 西安北方光电科技防务有限公司 | Over-voltage, under-voltage and over-current burn-out alarm, reset and power-on protection device for power supply |
| CN203761124U (en) * | 2014-01-10 | 2014-08-06 | 国家电网公司 | Voltage converting circuit and voltage converting device having voltage converting circuit |
| CN204407984U (en) * | 2015-03-17 | 2015-06-17 | 中国工商银行股份有限公司 | The supervising device of uninterrupted power supply charge in batteries voltage |
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