CN1747223A - Galvanic battery with detection unit - Google Patents
Galvanic battery with detection unit Download PDFInfo
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- CN1747223A CN1747223A CNA2004100406666A CN200410040666A CN1747223A CN 1747223 A CN1747223 A CN 1747223A CN A2004100406666 A CNA2004100406666 A CN A2004100406666A CN 200410040666 A CN200410040666 A CN 200410040666A CN 1747223 A CN1747223 A CN 1747223A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention comprises a battery checking unit and one or more groups of battery packs connected each other in parallel. Each battery pack comprises multi batteries connected each other in series. The battery checking unit checks the state of each battery pack by checking the voltage at the checking point of battery pack. The checking point is located in node of series connection between batteries. The interval of checking point is two batteries. At least one checking point should be mounted in each battery pack. It also includes one or more checking voltage input end connected with voltage output end of checking point of each battery pack.
Description
[technical field]
The present invention relates to a kind of batteries that has detecting unit.
[background technology]
In telecom operators' communication power supply equipment, storage battery has accounted for investment greatly, so operator pays much attention to the maintenance of storage battery.Research and relevant device for battery service are a lot.But great majority all are to judge by the terminal voltage that detects each cell, operation principle according to battery, when a batteries is in malfunction, its terminal voltage is just than much lower under the normal condition during discharge, about 12V when for example the cell of a joint 12V has normally just begun to discharge, but the battery of fault will be below 10.5V.Be exactly a kind of prior art according to above-mentioned thinking design as shown in Figure 1, this scheme detects more accurate comparatively speaking, but wiring is more, all needs two sample line for every batteries, and scheme is complicated, and cost is more expensive.Fault for non-battery itself can not detect.As causing the battery resistance of getting an electric shock indirectly to increase this scheme and just can not detect because connecting line contact is bad between battery.
[summary of the invention]
Purpose of the present invention is exactly the problem that the fault for many, the non-batteries itself of above-mentioned wiring that solve prior art can not detect.
For achieving the above object, the present invention proposes a kind of batteries that has detecting unit, comprises battery detection unit and one or more groups electric power storage pond group parallel with one another, and wherein each electric power storage pond group comprises a plurality of cell batteries that are in series; It is characterized in that: described battery detection unit is used for the state according to this electric power storage pond group of test point voltage detecting of each electric power storage pond group, and it comprises one or more detection voltage input ends, and the test point voltage output end with each electric power storage pond group links to each other respectively; Described test point is arranged at the series connection node place of cell batteries in the group of electric power storage pond, at least two cell batteries in interval between two cell batteries or test point and at least one the terminal voltage output at least at interval between test point and the test point.
According to the embodiment of the invention, each electric power storage pond group only comprises a test point, is set in place near the mid point of electric power storage pond group and away from the node place of the terminal voltage output of batteries.
In most preferred embodiment, comprise the even number cell batteries in the group of described electric power storage pond, describedly state the mid point that test point is an electric power storage pond group.
According to the embodiment of the invention, described battery detection unit comprises that the test point desired voltage forms circuit, mid-point voltage detects compensating circuit, test point virtual voltage testing circuit and test point voltage comparator circuit, the input that described mid-point voltage detects compensating circuit links to each other with the output that the test point desired voltage forms circuit, and the input of described test point voltage comparator circuit links to each other with output, the test point virtual voltage testing circuit output of mid-point voltage detection compensating circuit respectively; Described test point desired voltage forms circuit input end and links to each other with the terminal voltage input of batteries, and described test point virtual voltage testing circuit input links to each other with test point.
According to the embodiment of the invention, described test point voltage comparator circuit comprises that test point voltage is just comparing circuit, test point voltage negative comparison circuit, just relatively voltage reference forms circuit, negative comparative voltage benchmark forms circuit; Described just relatively voltage reference forms circuit and links to each other with the output of mid-point voltage detection compensating circuit respectively with the input that negative comparative voltage benchmark forms circuit, be used to form the forward and the negative sense maximum permissible value of test point desired voltage, its output is just comparing circuit with described test point voltage respectively and is linking to each other with test point voltage negative comparison circuit.
According to the embodiment of the invention, described test point voltage comparator circuit comprises that test point voltage is just comparing circuit, test point voltage negative comparison circuit, just relatively voltage reference forms circuit, negative comparative voltage benchmark forms circuit; Described just relatively voltage reference forms circuit and links to each other with the output that mid-point voltage detects compensating circuit, be used to form the forward maximum permissible value of test point desired voltage, described negative comparative voltage benchmark forms the input of circuit and links to each other with the output that just compares voltage reference formation circuit, be used to form the negative sense maximum permissible value of test point desired voltage, the output of described just relatively voltage reference formation circuit and negative comparative voltage benchmark formation circuit is just comparing circuit with described test point voltage respectively and is linking to each other with test point voltage negative comparison circuit.
According to the embodiment of the invention, described test point virtual voltage testing circuit comprises the protection diode that one or more groups is in series, every group of its anode of diode series connection back connects negative comparative voltage benchmark and forms circuit, negative electrode connects just relatively voltage reference formation circuit, and its series connection contact connects the wherein test point of group storage battery group; Described test point desired voltage forms circuit and comprises the two or more divider resistances that are connected to batteries terminal voltage output after the series connection, and described test point desired voltage is formed on the series connection contact of divider resistance.
According to the embodiment of the invention, described mid-point voltage detects compensating circuit and comprises compensation diode and operational amplifier.
According to the embodiment of the invention, described just relatively voltage reference forms circuit and comprises one group of reference resistance that is in series and Multi-band switch, a plurality of inputs of described Multi-band switch link to each other with each series connection node of reference resistance respectively, and the output of described Multi-band switch is used to produce the maximum deviation value that allows of forward of test point desired voltage; Described negative comparative voltage benchmark forms circuit and comprises inverter, and the input of inverter links to each other with the output of Multi-band switch, and inverter output is used to produce the maximum deviation value that allows of forward of test point desired voltage.
Owing to adopted above scheme, two cell batteries at least at interval between test point and the test point that is to say that the two or more cell batteries in every interval just have a wiring, have significantly reduced wiring quantity.And, according to the present invention, minimum in each electric power storage pond group a test point can only be set, so just realize real-time detection to storage battery with minimum wiring.Simultaneously, because what detect is magnitude of voltage after two or more cell batteries series connection, so just can detect the fault of connecting portion between the cell batteries in the lump.
Each electric power storage pond group only comprises a test point, is set in place near the mid point of electric power storage pond group and away from the node place of the terminal voltage output of batteries.Test point minimum number so not only, accuracy of detection is also high.
When comprising the even number cell batteries in the group of described electric power storage pond, state the mid point that test point is arranged at electric power storage pond group with described, can obtain best detection effect like this.
Described battery detection unit comprises that the test point desired voltage forms circuit, test point virtual voltage testing circuit and test point voltage comparator circuit, like this, utilize the voltage of batteries self to form desired voltage so that compare with detection voltage, need not set up other standard storage battery, also need not increase devices such as single-chip microcomputer, realization is simple, cost is low.
Described test point voltage comparator circuit comprises that test point voltage is just comparing circuit, test point voltage negative comparison circuit, just relatively voltage reference forms circuit, negative comparative voltage benchmark forms circuit; Further realize the comparison of the positive and negative deviation value of voltage with discrete component, further save cost.
Described test point virtual voltage testing circuit comprises the protection diode that one or more groups is in series, and can prevent from that electrode from connecing inverse time circuit to be caused damage.
Mid-point voltage detects compensating circuit then can compensate the change in voltage that above-mentioned protection diode is brought.
The physical circuit form that described just relatively voltage reference forms circuit and negative comparative voltage benchmark formation circuit makes the present invention can produce the forward and the maximum deviation value that allows of negative sense of test point desired voltage with the simplest form.
[description of drawings]
Fig. 1 is that a kind of storage battery of the prior art detects schematic diagram.
Fig. 2 A, 2B, 2C, 2D are the principle schematic of several embodiment of the present invention.
Fig. 3 A is a detecting unit embodiment schematic diagram of the present invention.
Fig. 3 B is the another kind of embodiment schematic diagram of detecting unit of the present invention.
Fig. 3 C is the another kind of embodiment schematic diagram of detecting unit of the present invention.
Fig. 4 A is the first of the physical circuit figure of detecting unit embodiment of the present invention;
Fig. 4 B is the second portion of the physical circuit figure of detecting unit embodiment of the present invention;
Fig. 4 C is the third part of the physical circuit figure of detecting unit embodiment of the present invention.
[embodiment]
Also the present invention is described in further detail in conjunction with the accompanying drawings below by specific embodiment.
Main characteristics of the present invention is to judge this battery group fault by detecting in the every group storage battery group quantity than the test point voltage of cell batteries much less.When detecting electric power storage pond group fault, alarm by the alarm dry contact.Minimum need of every group storage battery group connect three lines, and this scheme is simple and practical, and cost is low.Concrete winding diagram is shown in Fig. 2 A-2D.
Embodiment one:
Fig. 2 A is the principle schematic of embodiment one, and it comprises battery detection unit 30 and one or more groups electric power storage pond group 20 parallel with one another, and wherein each electric power storage pond group 20 comprises a plurality of cell batteries that are in series; Battery detection unit 30 is used for the state according to this electric power storage pond group of test point voltage detecting of each electric power storage pond group 20, and it comprises one or more detection voltage input ends, and the test point voltage output end 26 with each electric power storage pond group links to each other respectively; Test point is arranged at the midpoint (contain the even number cell batteries in the group of electric power storage pond, therefore real mid point can be arranged) of electric power storage pond group.Minimum need of every group storage battery group this moment connect three lines.
It shown in Fig. 3 A the block diagram of the battery detection unit 30 of present embodiment, it comprises that the test point desired voltage forms circuit 32, mid-point voltage detects compensating circuit 33, test point virtual voltage testing circuit 34, test point voltage comparator circuit 36 and alarm output circuit 38, the output of test point voltage comparator circuit 36 links to each other with alarm output circuit 38, and its input detects compensating circuit 33 with mid-point voltage respectively, test point virtual voltage testing circuit 34 links to each other; The input that mid-point voltage detects compensating circuit 33 links to each other with test point desired voltage formation circuit 32, and the test point desired voltage forms circuit 32 inputs and links to each other with the terminal voltage input of batteries, and test point virtual voltage testing circuit 34 links to each other with test point.
Fig. 3 B is the block diagram after the 36 further refinements of test point voltage comparator circuit among Fig. 3 A, and test point voltage comparator circuit 36 comprises that test point voltage is just comparing circuit 36A, test point voltage negative comparison circuit 36B, just relatively voltage reference forms circuit 36C, negative comparative voltage benchmark forms circuit 36D; Just relatively voltage reference forms circuit 36C, negative comparative voltage benchmark forms circuit 36D and links to each other with mid-point voltage detection compensating circuit 33 respectively, the input that mid-point voltage detects compensating circuit 33 then links to each other with test point desired voltage formation circuit 32, be used to form the forward and the negative sense maximum permissible value of test point desired voltage, its output is just comparing circuit 36A with test point voltage respectively and is linking to each other with test point voltage negative comparison circuit 36B.
Notice that Fig. 3 A also can regard two different embodiment as with Fig. 3 B, wherein Fig. 3 A is direct comparison, and Fig. 3 B produces positive and negative benchmark earlier, and then compares.
Fig. 3 C is the block diagram after the 36 further refinements of test point voltage comparator circuit among the another kind of conceptual scheme 3A, different with Fig. 3 B is, just relatively voltage reference formation circuit 36C links to each other with mid-point voltage detection compensating circuit 33, and negative comparative voltage benchmark forms circuit 36D and forms circuit 36C with voltage reference just relatively and link to each other, that is to say, negative comparative voltage benchmark is exactly to adopt this kind connection by just relatively voltage reference conversion back generation among following Fig. 4 B.
Shown in Fig. 4 A; test point virtual voltage testing circuit 34 comprises the protection diode D6-D13 that one or more groups (its group number is identical with the group number of electric power storage pond group) is in series; its series connection contact connects the wherein test point of group storage battery group, inserts by binding post J2, J3 among Fig. 4 A.Why adopting diode, mainly is in order to prevent that electrode from connecing the infringement that is instead brought.But after connecting diode, cause the virtual voltage and the real virtual voltage of detection inconsistent, differ 0.7V, every group of its anode tap of diode series connection back is than the big 0.7V of mid point virtual voltage (Vmini among Fig. 4 A, connect negative comparative voltage benchmark and form circuit 36D), cathode terminal is than the little 0.7V of mid point virtual voltage (Vmax among Fig. 4 A, connecing just relatively, voltage reference forms circuit 36C), thereby need when forming desirable mid-point voltage, also do corresponding compensation, mid-point voltage compensating circuit 33 roles among Here it is Fig. 3 B will further be explained below.
Shown in Fig. 4 A, the battery pack terminal voltage is passed through resistance R 2, R3, and D1 forms the voltage of 24VDC, Q1, Q2 and R2, R3, D1 forms a voltage follower, as the accessory power supply of this circuit.The battery pack terminal voltage inserts by binding post J1.
Shown in Fig. 4 B, the test point desired voltage forms circuit 32 and comprises two or more divider resistance R8, the R9 that is connected to batteries terminal voltage output 22,24 after the series connection, and the test point desired voltage is formed on the series connection contact of divider resistance R8, R9.Mid-point voltage detects compensating circuit 33 and comprises compensation diode D14, D15 and the amplifier U1 that is in series with divider resistance R8, R9.It is the tube voltage drops that compensate the diode of the positive and negative 0.7V that occurs when the actual detected mid-point voltage by the voltage follower that D14, D15, U1 form that mid-point voltage among Fig. 3 B detects compensating circuit 33.
Shown in Fig. 4 B, just relatively voltage reference formation circuit 36C comprises one group of resistance benchmark R11-R16 that is in series and Multi-band switch SW1, a plurality of inputs of Multi-band switch SW1 link to each other with each series connection node of reference resistance R11-R16 respectively, and its output is used to produce the maximum deviation value that allows of forward of test point desired voltage; Negative comparative voltage benchmark forms circuit 36D and comprises inverter U2, and its input links to each other with the output of Multi-band switch SW1, and its output is used to produce the maximum deviation value that allows of forward of test point desired voltage.
Shown in Fig. 4 C, be stand by lamp and alarm signal output schematic diagram.
The operating principle of present embodiment is as follows:
When certain batteries broke down when electric power storage pond group occurs opening circuit with short trouble or in the group of electric power storage pond, departing from will appear in the mid-point voltage of this electric power storage pond group.This circuit is compared with the mid point desired voltage by the mid-point voltage that detects four group storage batteries group, just thinks that when deviation value acquires a certain degree this electric power storage pond group breaks down, and alarms thereby drive alarm relay.Deviation value can be regulated (for example in the present embodiment just relatively voltage reference form circuit 36C and negative comparative voltage benchmark and form circuit 36D and be used for exactly deviation value is preset).
Test point can also have the setting of following accommodation except that the midpoint that can be arranged at electric power storage pond group:
Embodiment two:
Shown in Fig. 2 B, 2C, each electric power storage pond group 20 remains and only comprises a test point, be set in place near the mid point of electric power storage pond group and away from the node place of the terminal voltage output of batteries, but not strictness is positioned at mid point (when the cell batteries number is odd number, to not have strict mid point, present embodiment just is particularly useful).
According to embodiment one, two, can realize detecting in real time with minimum pair of connecting wires storage battery, its reason is explained as follows:
(1) because batteries is one or more electric power storages pond group and communication power supply parallel operation, its batteries terminal voltage still can remain unchanged when wherein group storage battery group broke down, and therefore simple detection batteries terminal voltage can't realize testing goal.
(2) same, when one of them electric power storage pond group breaks down, the terminal voltage that it not only can not the whole batteries of shadow, it can not influence its contiguous or other work of electric power storage pond group, and therefore, the voltage of electric power storage pond, a test section group is not enough.
(3) as from the foregoing, want batteries is detected in real time, need detect each electric power storage pond group.
(4) present embodiment only is provided with a test point in each electric power storage pond group, therefore can realize detecting in real time with minimum pair of connecting wires storage battery.That is to say, realize storage battery is detected in real time that wiring can not be few again.
Embodiment three:
Shown in Fig. 2 D, in each electric power storage pond group, not only one of test point, be arranged at the series connection node place of cell batteries in the group of electric power storage pond, two cell batteries in interval at least between at least one in two cell batteries or test point and the terminal voltage output 22,24 at least at interval between test point and the test point.The advantage of doing like this is can further orient the position of fault in the group of electric power storage pond when breaking down, and not as embodiment one, only orienting is that fault has appearred in which group storage battery group.
But as the front, the purpose that storage battery detects is to find fault, as long as found fault, remaining issues determines that one by one abort situation and follow-up disposal just are easy to handle.Therefore, contrast finds that fault is much more important than the fault location position, and embodiment one, the minimum wiring of dual-purpose have realized this point, and as seen, three embodiment each have its unique advantages.
Claims (9)
1, a kind of batteries that has detecting unit comprises battery detection unit (30) and one or more groups electric power storage pond group (20) parallel with one another, and wherein each electric power storage pond group (20) comprises a plurality of cell batteries that are in series; It is characterized in that: described battery detection unit (30) is used for the state according to this electric power storage pond group of test point voltage detecting of each electric power storage pond group (20), it comprises one or more detection voltage input ends, links to each other with the test point voltage output end (26) of each electric power storage pond group respectively; Described test point is arranged at the series connection node place of cell batteries in the group of electric power storage pond, at least two cell batteries in interval between two cell batteries or test point and at least one the terminal voltage output (22,24) at least at interval between test point and the test point.
2, the batteries that has detecting unit as claimed in claim 1 is characterized in that: each electric power storage pond group (20) only comprises a test point, is set in place near the mid point of electric power storage pond group and away from the node place of the terminal voltage output of batteries.
3, the batteries that has detecting unit as claimed in claim 2 is characterized in that: comprise the even number cell batteries in the described electric power storage pond group (20), describedly state the mid point that test point is an electric power storage pond group.
4, the batteries that has detecting unit as claimed in claim 1, it is characterized in that: described battery detection unit (30) comprises that the test point desired voltage forms circuit (32), mid-point voltage detects compensating circuit (33), test point virtual voltage testing circuit (34) and test point voltage comparator circuit (36), the input that described mid-point voltage detects compensating circuit (33) links to each other with the output that the test point desired voltage forms circuit (32), and the input of described test point voltage comparator circuit (36) detects compensating circuit (33) output with mid-point voltage respectively, test point virtual voltage testing circuit (34) output links to each other; Described test point desired voltage forms circuit (32) input and links to each other with the terminal voltage input of batteries, and described test point virtual voltage testing circuit (34) input links to each other with test point.
5, the batteries that has detecting unit as claimed in claim 4 is characterized in that: described test point voltage comparator circuit (36) comprises that test point voltage is just comparing circuit (36A), test point voltage negative comparison circuit (36B), just relatively voltage reference forms circuit (36C), negative comparative voltage benchmark forms circuit (36D); Described just relatively voltage reference forms circuit (36C) and links to each other with the output of mid-point voltage detection compensating circuit (33) respectively with the input that negative comparative voltage benchmark forms circuit (36D), be used to form the forward and the negative sense maximum permissible value of test point desired voltage, its output is just comparing circuit (36A) with described test point voltage respectively and is linking to each other with test point voltage negative comparison circuit (36B).
6, the batteries that has detecting unit as claimed in claim 4 is characterized in that: described test point voltage comparator circuit (36) comprises that test point voltage is just comparing circuit (36A), test point voltage negative comparison circuit (36B), just relatively voltage reference forms circuit (36C), negative comparative voltage benchmark forms circuit (36D); Described just relatively voltage reference forms circuit (36C) and links to each other with the output that mid-point voltage detects compensating circuit (33), be used to form the forward maximum permissible value of test point desired voltage, described negative comparative voltage benchmark forms the input of circuit (36D) and links to each other with the output that just compares voltage reference formation circuit (36C), be used to form the negative sense maximum permissible value of test point desired voltage, the output of described just relatively voltage reference formation circuit (36C) and negative comparative voltage benchmark formation circuit (36D) is just comparing circuit (36A) with described test point voltage respectively and is linking to each other with test point voltage negative comparison circuit (36B).
7, the batteries that has detecting unit as claimed in claim 6, it is characterized in that: described test point virtual voltage testing circuit (34) comprises the protection diode (D6-D13) that one or more groups is in series, every group of its anode of diode series connection back connects negative comparative voltage benchmark and forms circuit (36D), negative electrode connects just relatively voltage reference formation circuit (36C), and its series connection contact connects the wherein test point of group storage battery group; Described test point desired voltage forms circuit (32) and comprises the two or more divider resistances (R8, R9) that are connected to batteries terminal voltage output (22,24) after the series connection, and described test point desired voltage is formed on the series connection contact of divider resistance (R8, R9).
8, as claim 5 or the 6 described batteries that have detecting unit, it is characterized in that: described mid-point voltage detects compensating circuit (33) and comprises compensation diode (D14, D15) and operational amplifier (U1).
9, the batteries that has detecting unit as claimed in claim 8, it is characterized in that: described just relatively voltage reference forms circuit (36C) and comprises one group of reference resistance that is in series (R11-R16) and Multi-band switch (SW1), a plurality of inputs of described Multi-band switch (SW1) link to each other with each series connection node of reference resistance (R11-R16) respectively, and the output of described Multi-band switch (SW1) is used to produce the maximum deviation value that allows of forward of test point desired voltage; Described negative comparative voltage benchmark forms circuit (36D) and comprises inverter (U2), and the input of inverter (U2) links to each other with the output of Multi-band switch (SW1), and inverter (U2) output is used to produce the maximum deviation value that allows of forward of test point desired voltage.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100406666A CN100413141C (en) | 2004-09-08 | 2004-09-08 | Galvanic battery with detection unit |
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| CNB2004100406666A CN100413141C (en) | 2004-09-08 | 2004-09-08 | Galvanic battery with detection unit |
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| CN1747223A true CN1747223A (en) | 2006-03-15 |
| CN100413141C CN100413141C (en) | 2008-08-20 |
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| WO2011003251A1 (en) * | 2009-07-06 | 2011-01-13 | Amperex Technology Limited | Series-parallel battery system with buffer resistor |
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| CN103105522A (en) * | 2013-03-07 | 2013-05-15 | 上海电气钠硫储能技术有限公司 | Collection wire wiring structure for detecting voltage of energy storage type sodium-sulfur battery module |
| CN103353566A (en) * | 2013-07-23 | 2013-10-16 | 成都四威航空电源有限公司 | Cell in-place detection circuit for simulation circuit apparatus |
| WO2015196663A1 (en) * | 2014-06-27 | 2015-12-30 | 中兴通讯股份有限公司 | Battery detection apparatus and method, and battery theft detection system and method |
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| JP3384079B2 (en) * | 1994-02-10 | 2003-03-10 | 日立工機株式会社 | Battery pack charging device |
| JP3930792B2 (en) * | 2002-09-27 | 2007-06-13 | 日立工機株式会社 | Charge control method for general-purpose charger |
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| CN110187286A (en) * | 2019-05-31 | 2019-08-30 | 蜂巢能源科技有限公司 | Detection circuit, power-supply system and the vehicle of copper bar connection status |
| CN110187286B (en) * | 2019-05-31 | 2021-09-14 | 蜂巢能源科技有限公司 | Detection circuitry, electrical power generating system and vehicle of copper bar connection status |
| CN112415397A (en) * | 2020-11-27 | 2021-02-26 | 广东电网有限责任公司佛山供电局 | Method for diagnosing faults of backup lead-acid storage battery pack of integrated intelligent terminal in real time |
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