CN203456913U - Battery charging monitoring device - Google Patents
Battery charging monitoring device Download PDFInfo
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- CN203456913U CN203456913U CN201320569605.3U CN201320569605U CN203456913U CN 203456913 U CN203456913 U CN 203456913U CN 201320569605 U CN201320569605 U CN 201320569605U CN 203456913 U CN203456913 U CN 203456913U
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- power supply
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Abstract
The utility model discloses a battery charging monitoring device comprising an emergency power module and a master power supply module which are both connected with a device to be supplied, and the emergency power module comprises a battery charging supply, a battery charging relay and a storage battery. The battery charging monitoring device also comprises an internal resistance adjustable power module in parallel connection with the emergency power module; a battery off-line detection module connected to the emergency power module and used for generating emergency power off-line signals according to the internal resistance adjustable power module and detecting voltage of the storage battery in the emergency power module is normal or not; a battery over-discharge protection module comprising an over-discharge protective relay and an over-discharge control module, wherein the battery over-discharge protection module is connected with the emergency power module and used for protecting the storage battery in the emergency power module; and an AC power cut detection module connected with the master power supply module and the battery over-discharge protection module and used for generating AC power cut signals, controlling the over-discharge protective relay in the battery over-discharge protection module together with the over-discharge control module, achieving zero-time switching from a master power to an emergency power when an AC power is cut off, and achieving zero-time switching from the emergency power to the master power when the AC power is powered on.
Description
Technical field
The utility model relates to power monitoring field, relates in particular to a kind of battery charge monitoring device.
Background technology
At present, some power consumption equipment is generally by AC/DC power supply (being called main electricity) and storage battery (being called standby electricity) duplex feeding, and storage battery is furnished with independent charging device.Main electricity, standby electricity can be according to the automatic switchovers that has or not of civil power, when civil power is normal, by main electricity power supply; During city electrical anomaly, by standby electricity power supply.
But there is following defect in existing this supply power mode: can not accomplish between main electricity, standby electricity that the zero-time switches, power failure is especially easily occurred when standby TURP changes by main electricity, system is restarted and caused information dropout; Do not have battery Cross prevention function, mains failure is crossed when of a specified duration, and standby electricity is fragile; When civil power is normal, the stolen or battery line of battery the battery off-line state such as does not connect, becomes flexible and is difficult for finding.
Utility model content
The utility model embodiment provides a kind of battery charge monitoring device, to realize the charging of power consumption equipment and real-time monitoring and control.
In order to achieve the above object, the utility model embodiment provides a kind of battery charge monitoring device, comprise standby power supply module and main electric supply module, described standby power supply module and main electric supply module are all connected with treating power supply unit, described standby power supply module comprises charge power supply of battery, battery charge relay and storage battery, described battery charge monitoring device also comprises: internal resistance regulated power supply module, and in parallel with described standby power supply module; Battery offline inspection module, is connected in described standby power supply module, and in order to produce standby power supply off-lined signal according to described internal resistance regulated power supply module, whether the battery tension detecting in described standby power supply module is normal; Battery Cross prevention module, comprises Cross prevention relay and crosses and put control module, connects described standby power supply module, in order to protect the storage battery in described standby power supply module; Exchange power failure detection module; connect described main electric supply module and described battery Cross prevention module; in order to produce, exchange power cut signal; put the Cross prevention relay in battery Cross prevention module described in control module co-controlling with described mistake; realization is switched to the standby electric zero-time by main electricity when exchange having a power failure, and the zero-time switching from standby electricity to main electricity when exchanging incoming call.
Further, in one embodiment, described battery offline inspection module comprises: the first follower, First Line and circuit and charge relay control signal generative circuit; Described the first follower connects described storage battery and described First Line and circuit, and described First Line is connected described charge relay control signal generative circuit with circuit, and described charge relay control signal generative circuit connects described battery charge relay; Described the first follower carries out exporting to described First Line and circuit after dividing potential drop to the voltage of described storage battery, described First Line and circuit generate First Line and voltage according to the voltage of under-voltage benchmark, overvoltage benchmark and described the first follower output, described charge relay signal generating circuit is according to described First Line and voltage and reference voltage, and output charge relay control signal realizes the control to described battery charge relay.
Further, in one embodiment, described battery Cross prevention module comprises Cross prevention relay and crosses puts control module, and described Cross prevention relay connects described storage battery, and described mistake is put control module and connected described storage battery and described Cross prevention relay; Wherein, described mistake is put control module and is comprised: the second follower, cross discharge signal generative circuit and AC control circuit; Wherein, described the second follower carries out exporting to the described discharge signal generative circuit of crossing after dividing potential drop to the voltage of described storage battery; described discharge signal generative circuit is excessively put the voltage of described the second follower input a little and is compared with mistake; generate battery and cross discharge signal; described AC control circuit is crossed discharge signal and exchanges power cut signal according to described battery; control described Cross prevention relay, realize the Cross prevention to described storage battery.
Further, in one embodiment, described interchange power failure detection module connects described battery Cross prevention module, for generating described interchange power cut signal, to control described Cross prevention relay; Wherein, described interchange power failure detection module comprises alternating voltage sampling with precise rectification circuit, filter circuit and exchanges power cut signal generative circuit; Described alternating voltage sampling is connected described filter circuit with precise rectification circuit, described filter circuit connects described interchange power cut signal generative circuit; The sampling of described alternating voltage and precise rectification circuit in order to alternating voltage sample with rectification after be transferred to described filter circuit, the voltage of described filter circuit after to described sampling and rectification carries out filtering, generate efficiently sampling voltage, described interchange power cut signal generative circuit generates the described power cut signal that exchanges according to described efficiently sampling voltage and accurate reference voltage.
Further, in one embodiment, described internal resistance regulated power supply module consists of superpose power supply and additional adjustable resistance, by regulating described additional adjustable resistance, controls the switch of described battery charge relay.
The battery charge monitoring device of the utility model embodiment, the power module that internal resistance is adjustable that superposeed on charge power supply of battery, has produced battery off-lined signal, has fundamentally solved the difficult problem that " battery off-line " detects; Increase battery Cross prevention function, effectively protected storage battery; Perfect main electricity, standby electric commutation circuit, having realized the mutual zero-time switches, and the system that solved is restarted, the problems such as information dropout.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those skilled in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the battery charge monitoring device of the utility model embodiment;
Fig. 2 is charge power supply of battery and the curve synoptic diagram of stack power end voltage with output current variation;
Fig. 3 is the circuit connection diagram of the battery offline inspection module 4 in the utility model embodiment;
Fig. 4 is the circuit connection diagram of the battery Cross prevention module 5 in the utility model embodiment;
Fig. 5 is the circuit connection diagram of the interchange power failure detection module 6 in the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the structural representation of the battery charge monitoring device of the embodiment of the present invention.As shown in the figure, the battery charge monitoring device of the present embodiment comprises: standby power supply module 1 and main electric supply module 2, described standby power supply module 1 and main electric supply module 2 are all connected with treating power supply unit, described standby power supply module 1 comprises that charge power supply of battery S2(includes diode V, in Fig. 1 for sake of clarity, diode V has been shown in to outside), battery charge relay K1 and storage battery BAT1, described battery charge monitoring device also comprises: internal resistance regulated power supply module 3, and in parallel with described standby power supply module 1; Battery offline inspection module 4, is connected in described standby power supply module 1, and in order to produce standby power supply off-lined signal according to described internal resistance regulated power supply module 3, whether the voltage that detects the storage battery BAT1 in described standby power supply module 1 is normal; Battery Cross prevention module 5, comprises Cross prevention relay K 2 and crosses and put control module 51, connects described standby power supply module 1, in order to protect the storage battery BAT1 in described standby power supply module 1; Exchange power failure detection module 6; connect described main electric supply module 2 and described battery Cross prevention module 5; in order to produce, exchange power cut signal; put the Cross prevention relay K 2 in battery Cross prevention module 5 described in control module 51 co-controllings with the mistake in described battery Cross prevention module 5; realization is switched to the standby electric zero-time by main electricity when exchange having a power failure, and the zero-time switching from standby electricity to main electricity when exchanging incoming call.
In the utility model embodiment, the internal resistance regulated power supply module 3 of Fig. 1 consists of stack power supply S3 and additional internal resistance regulating R1, the curve that its terminal voltage changes with output current is as shown in the curve b in Fig. 2, the electromotive force E3 of S3 should be greater than the high charge electromotive force E2 of charge power supply S2 in standby power supply module 1, is also greater than battery and crosses pressure point U.Suitably regulate R1, the curve that curve b(charge power supply S3 terminal voltage changes with output current) and curve a, curve c will be crossing at suitable point, when battery is online, working point is on curve a, during battery off-line, working point is on curve b, thereby producing battery off-lined signal, is the core of battery offline inspection.
In the utility model embodiment, standby power supply module 1 in Fig. 1 consists of battery BAT1, charge power supply of battery S2, battery charge relay K1, when civil power is normal, K1 is closed, and charge power supply of battery S2, to battery BAT charging, first all fills, then in floating charge, now, the Cross prevention relay K 2 in described battery Cross prevention module 5 disconnects, and standby electricity is to treating power supply unit power supply; During municipal power failure, K1 disconnects, Cross prevention relay K 2 closures in described battery Cross prevention module 5, and standby electricity is to treating power supply unit power supply.Power supply unit is treated in the R2 representative of Fig. 1, and when civil power is normal, the main power supply S1 in main electric supply module 2 is to treating power supply unit power supply.
In the utility model embodiment, as shown in Figure 3, battery offline inspection module 4 consists of the first follower 41, First Line and circuit 42 and charge relay control signal generative circuit 43; Described the first follower 41 connects described storage battery BAT1 and described First Line and circuit 42, described First Line is connected described charge relay control signal generative circuit 43 with circuit 42, described charge relay control signal generative circuit 43 connects described battery charge relay K1.
The voltage of 41 couples of described storage battery BAT1 of described the first follower carries out exporting to described First Line and circuit 42 after dividing potential drop, described First Line and circuit 42 generate First Line and voltage according to the voltage of under-voltage benchmark, overvoltage benchmark and described the first follower 41 outputs, described charge relay signal generating circuit 43 is according to described First Line and voltage and reference voltage, and output charge relay control signal realizes the control to described battery charge relay K1.
Wherein, described the first follower 41 consists of amplifier N3A:LM358 and resistance R 6, R7, and resistance R 6, R7 carry out dividing potential drop to the voltage BAT-V of storage battery BAT1, and amplifier N3A forms follower, completes battery voltage detection function.In the First Line of Fig. 3 and circuit 42, comparator N4A:LM393 and peripheral components complete the too high arbitration functions of cell voltage, and R8, R9, to accurate 5V dividing potential drop, provide overvoltage benchmark, and V2, R10 prevented pressure point shake; Comparator N4B:LM393 and peripheral components complete the too low arbitration functions of cell voltage, and R12, R13, to accurate 5V dividing potential drop, provide under-voltage benchmark, and V3, R14 prevent under-voltage some shake; R11 is the pull-up resistor of N4, and N4A, N4B form line and circuit, during cell voltage abnormal (lower than under-voltage point or higher than crossing pressure point), sends low level signal, during cell voltage normal (between under-voltage and overvoltage), sends high level signal.The charge relay control signal generative circuit 43 of Fig. 3 completes battery status judgement and charging control signal, comparator N5A:LM393 and peripheral components form comparison circuit, R15, R16 are to accurate 5V dividing potential drop, judgment standard is provided, R11 is the pull-up resistor of N5, when battery is normal, comparator output high level signal, by diode V4, drive triode Q1 conducting, BAT-C is connected to one end of battery charge relay K1 coil, another termination power 12V of coil, and K1 coil obtains electric, the closing of contact, for battery charging provides loop; When battery is abnormal, cut off charge circuit.As shown in Figure 2, the electromotive force E3 of stack power supply S3 is arranged to such an extent that be greater than the high charge electromotive force E2 of charge power supply of battery S2, some M is the intersection point of the curve c that curve b is corresponding with battery overpressure value, and its abscissa is I
m, some Q is the intersection point of curve b and curve a, its abscissa is I
q, I numerically
mwith I
qvery approaching; Suppose I
0for the floating current of battery, it is battery limit on the left of working point in Fig. 2 when online, supposes I
nthe limit on the right-right-hand limit of working point (parameter by interlock circuit determines) in Fig. 2 during for battery off-line.When battery is online, the working point in Fig. 2 is at I
0right side, the ordinate of curve a is greater than curve b, and what in Fig. 3, N3A sampled is the signal of curve a, and battery voltage signal, consistent with reality; When battery connector XS2 is loosening, charge circuit disconnects or battery is stolen, battery off-line, charging current disappears, and the working point in Fig. 2 is at I
n(or its left side), the ordinate of curve b is greater than curve a, and what in Fig. 3, N3A sampled is the signal of curve b, this voltage U
nbe greater than battery and cross pressure point U, battery offline inspection module 4 works, and K1 disconnects, and now the sampled signal of N3A disappears, and K1 remains open, and produces lasting battery off-lined signal.Regulating resistance R1, the slope of curve b will change, and some M and some Q will move simultaneously to the left or to the right, in theory, I
m-I
n=I
0-I
qtime, the antijamming capability of circuit is the strongest.
In the utility model embodiment, as shown in Figure 4, described battery Cross prevention module 5 comprises Cross prevention relay K 2 and crosses puts control module 51, described Cross prevention relay K 2 connects described storage battery BAT1, and described mistake is put control module 51 and connected described storage battery BAT1 and described Cross prevention relay K 2; Wherein, described mistake is put control module 51 and is comprised: the second follower 511, cross discharge signal generative circuit 512 and AC control circuit 513; Wherein, the voltage of 511 couples of described storage battery BAT1 of described the second follower carries out exporting to the described discharge signal generative circuit 512 of crossing after dividing potential drop; described discharge signal generative circuit 512 is excessively put the voltage of described the second follower 511 inputs a little and is compared with mistake; generate battery and cross discharge signal; described AC control circuit 513 is crossed discharge signal and exchanges power cut signal according to described battery; control described Cross prevention relay K 2, realize the Cross prevention to described storage battery BAT1.
Wherein, as shown in Figure 4, resistance R 22 in the second follower 511, R23 form cell voltage proportional sampling, amplifier N8A:LM358 forms follower, the resistance R 24, the R25 that cross in discharge signal generative circuit 512 carry out dividing potential drop to precise voltage VREF, setting up battery crosses and puts benchmark, resistance R 26, diode V5 prevent that battery from crossing discharge signal shake, resistance R 27 is the output pull-up resistor of comparator N9B:LM393, and comparator N9A:LM393 and peripheral resistance R 28, R29, R30 cross discharge signal shaping to battery.Battery is higher than crossing while putting, and crossing discharge signal is high level, reaches while putting, and crossing discharge signal is low level.Exchanging power cut signal AC-F, is high level during power failure, is low level when civil power is normal.Therefore, battery is crossed discharge signal and is exchanged power cut signal AC-F line and control Cross prevention relay K 2.Only have exchange to have a power failure, and battery do not cross while putting, high level, by the diode V6 in AC control circuit 513, drives triode Q2 conducting, and Cross prevention relay K 2 coils obtain electric, Cross prevention relay K 2 closings of contact, and battery is to treating power supply unit R2 power supply.When exchanging power failure; as long as discharge into, put a little; drive signal just to become low level; triode Q2 cut-off, puts protection relay K2 coil losing electricity, and contact disconnects; battery is no longer to treating power supply unit R2 power supply; play the effect of protection battery, or when AC network is normal, by AC/DC power supply to the object for the treatment of power supply unit R2 power supply.
In the utility model embodiment, as shown in Figure 5, described interchange power failure detection module 6 connects described battery Cross prevention module 5, for generating described interchange power cut signal AC-F, to control described Cross prevention relay K 2; Wherein, described interchange power failure detection module 6 comprises alternating voltage sampling with precise rectification circuit 61, filter circuit 62 and exchanges power cut signal generative circuit 63; Described alternating voltage sampling is connected described filter circuit 62 with precise rectification circuit 61, described filter circuit 62 connects described interchange power cut signal generative circuit 63.
The sampling of described alternating voltage and precise rectification circuit 61 in order to alternating voltage sample with rectification after be transferred to described filter circuit 62, voltage after 62 pairs of described samplings of described filter circuit and rectification carries out filtering, generate efficiently sampling voltage, described interchange power cut signal generative circuit 63 generates the described power cut signal that exchanges according to described efficiently sampling voltage and accurate reference voltage.
Refer to Fig. 5, the voltage signal of the N10A output in filter circuit 62 is directly proportional to alternating voltage, for effective value sampling, in filter circuit 62, ac voltage signal and resistance R 43, R44 compares the dividing potential drop benchmark of accurate voltage VREF, during power failure, produce high level signal, when normal, produce low level signal, diode V8 provides and exchanges power cut signal path, resistance R 45, capacitor C 14 provides and exchanges incoming telephone signal path, obviously, can make to exchange moment driving stand-by power supply while having a power failure, as long as the drop-out time of this time and main electricity ties in, just can realize by main electricity to switching for the electric zero-time, during city power recovery, after resistance R 45, capacitor C 14 time delays, then current supply circuit is changed to main electricity by standby TURP, can realize by standby electricity and switching to the zero-time of main electricity.
The battery charge monitoring device of the utility model embodiment, the power module that internal resistance is adjustable that superposeed on charge power supply of battery, has produced battery off-lined signal, has fundamentally solved the difficult problem that " battery off-line " detects; Increase battery Cross prevention function, effectively protected storage battery; Perfect main electricity, standby electric commutation circuit, having realized the mutual zero-time switches, and the system that solved is restarted, the problems such as information dropout.
In the utility model, applied specific embodiment principle of the present utility model and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (5)
1. a battery charge monitoring device, comprise standby power supply module and main electric supply module, described standby power supply module and main electric supply module are all connected with treating power supply unit, described standby power supply module comprises charge power supply of battery, battery charge relay and storage battery, it is characterized in that, described battery charge monitoring device also comprises:
Internal resistance regulated power supply module, in parallel with described standby power supply module;
Battery offline inspection module, is connected in described standby power supply module, and in order to produce standby power supply off-lined signal according to described internal resistance regulated power supply module, whether the battery tension detecting in described standby power supply module is normal;
Battery Cross prevention module, comprises Cross prevention relay and crosses and put control module, connects described standby power supply module, in order to protect the storage battery in described standby power supply module;
Exchange power failure detection module; connect described main electric supply module and described battery Cross prevention module; in order to produce, exchange power cut signal; put the Cross prevention relay in battery Cross prevention module described in control module co-controlling with described mistake; realization is switched to the standby electric zero-time by main electricity when exchange having a power failure, and the zero-time switching from standby electricity to main electricity when exchanging incoming call.
2. battery charge monitoring device according to claim 1, is characterized in that, described battery offline inspection module comprises: the first follower, First Line and circuit and charge relay control signal generative circuit;
Described the first follower connects described storage battery and described First Line and circuit, and described First Line is connected described charge relay control signal generative circuit with circuit, and described charge relay control signal generative circuit connects described battery charge relay;
Described the first follower carries out exporting to described First Line and circuit after dividing potential drop to the voltage of described storage battery, described First Line and circuit generate First Line and voltage according to the voltage of under-voltage benchmark, overvoltage benchmark and described the first follower output, described charge relay signal generating circuit is according to described First Line and voltage and reference voltage, and output charge relay control signal realizes the control to described battery charge relay.
3. battery charge monitoring device according to claim 1, it is characterized in that, described battery Cross prevention module comprises Cross prevention relay and crosses puts control module, described Cross prevention relay connects described storage battery, and described mistake is put control module and connected described storage battery and described Cross prevention relay;
Wherein, described mistake is put control module and is comprised: the second follower, cross discharge signal generative circuit and AC control circuit; Wherein, described the second follower carries out exporting to the described discharge signal generative circuit of crossing after dividing potential drop to the voltage of described storage battery; described discharge signal generative circuit is excessively put the voltage of described the second follower input a little and is compared with mistake; generate battery and cross discharge signal; described AC control circuit is crossed discharge signal and exchanges power cut signal according to described battery; control described Cross prevention relay, realize the Cross prevention to described storage battery.
4. battery charge monitoring device according to claim 3, is characterized in that, described interchange power failure detection module connects described battery Cross prevention module, for generating described interchange power cut signal, to control described Cross prevention relay;
Wherein, described interchange power failure detection module comprises alternating voltage sampling with precise rectification circuit, filter circuit and exchanges power cut signal generative circuit; Described alternating voltage sampling is connected described filter circuit with precise rectification circuit, described filter circuit connects described interchange power cut signal generative circuit;
The sampling of described alternating voltage and precise rectification circuit in order to alternating voltage sample with rectification after be transferred to described filter circuit, the voltage of described filter circuit after to described sampling and rectification carries out filtering, generate efficiently sampling voltage, described interchange power cut signal generative circuit generates the described power cut signal that exchanges according to described efficiently sampling voltage and accurate reference voltage.
5. according to the battery charge monitoring device described in claim 1-4 any one, it is characterized in that, described internal resistance regulated power supply module consists of superpose power supply and additional adjustable resistance, by regulating described additional adjustable resistance, controls the switch of described battery charge relay.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569605.3U CN203456913U (en) | 2013-09-13 | 2013-09-13 | Battery charging monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569605.3U CN203456913U (en) | 2013-09-13 | 2013-09-13 | Battery charging monitoring device |
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| CN203456913U true CN203456913U (en) | 2014-02-26 |
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| CN201320569605.3U Expired - Fee Related CN203456913U (en) | 2013-09-13 | 2013-09-13 | Battery charging monitoring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572593A (en) * | 2014-10-11 | 2016-05-11 | 中兴通讯股份有限公司 | Device and method for battery in-position detection, and charging system |
| CN106405379A (en) * | 2016-11-09 | 2017-02-15 | 浙江兴海能源科技股份有限公司 | Lithium battery protective plate detection device and setting voltage method thereof |
-
2013
- 2013-09-13 CN CN201320569605.3U patent/CN203456913U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572593A (en) * | 2014-10-11 | 2016-05-11 | 中兴通讯股份有限公司 | Device and method for battery in-position detection, and charging system |
| CN105572593B (en) * | 2014-10-11 | 2019-12-13 | 中兴通讯股份有限公司 | device and method for detecting battery in place and charging system |
| CN106405379A (en) * | 2016-11-09 | 2017-02-15 | 浙江兴海能源科技股份有限公司 | Lithium battery protective plate detection device and setting voltage method thereof |
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