CN103972968A - Lead-acid battery internally provided with overcharge protection circuit - Google Patents

Lead-acid battery internally provided with overcharge protection circuit Download PDF

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Publication number
CN103972968A
CN103972968A CN201410226421.6A CN201410226421A CN103972968A CN 103972968 A CN103972968 A CN 103972968A CN 201410226421 A CN201410226421 A CN 201410226421A CN 103972968 A CN103972968 A CN 103972968A
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CN
China
Prior art keywords
battery
lead
described
acid battery
module
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Application number
CN201410226421.6A
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Chinese (zh)
Inventor
邵李焕
吴建锋
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杭州电子科技大学
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Application filed by 杭州电子科技大学 filed Critical 杭州电子科技大学
Priority to CN201410226421.6A priority Critical patent/CN103972968A/en
Publication of CN103972968A publication Critical patent/CN103972968A/en

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Abstract

The invention provides a lead-acid battery internally provided with an overcharge protection circuit. The lead-acid battery comprises a battery overcharge protection circuit and a battery body, wherein the battery overcharge protection circuit and the battery body are connected with each other and are arranged together inside a battery shell; the shell is also provided with a charging interface which is connected with a charger and an output interface which is connected with a load; the charging interface is connected with the battery overcharge protection circuit; the output interface is connected with the battery body. By adopting the technical scheme of the invention, the lead-acid battery is internally provided with the overcharge protection circuit, so corresponding protection parameters can be set according to parameters of the lead-acid battery, the required charging time can be determined precisely according to charging input parameters and the on and off of charging of the lead-acid battery can be controlled in a timing manner so that the aim of preventing overcharge of the lead-acid battery is achieved.

Description

A kind of lead-acid battery of built-in additives for overcharge protection circuit

Technical field

The present invention relates to a kind of lead-acid battery, be specifically related to a kind of lead-acid battery of built-in additives for overcharge protection circuit.

Background technology

At present, adopt lead-acid battery to increase gradually as the product of electrical source of power, but in this series products, battery is all often to hold most flimsy parts, has a strong impact on user and use.Lead-acid battery is short useful life, one of them major reason be exactly lead-acid battery in charging process for a long time in overcharge condition, and main bad reason is that charger parameter is not mated, causes lead-acid battery sulfuration and gassing, and then cause lead-acid battery capacity sharply to decline.

In prior art, plumbic acid lead-acid battery does not generally all have special charge protector, and the charger of some producer has similar charging protection function.But existing charger market confusion, product quality is uneven, and lead-acid battery is substantially by several large factory's monopolizations (super prestige, Tian Nengdeng producer), uses for a long time the charger of low-quality to charge, and can cause damage to lead-acid battery; And in charger, need to use power device, and its useful life is short more a lot of than lead-acid battery and charge protector, and charge protector is integrated in charger, and after charger is scrapped, charge protector is also scrapped thereupon, has caused the waste of resource; Meanwhile, if by integrated to charge protector and lead-acid battery, can in the time dispatching from the factory, revise battery protection parameter according to battery design parameter, thereby more reasonably protect battery.

A lot of chargers all adopt syllogic charging modes to lead-acid battery, control charging process by detecting cell voltage, the charged states such as general successively experience " constant current charge ", " constant voltage charge ", " trickle charge ".Adopt in this way, to the functional lead-acid battery that there is no damage, its charging process approaches optimum charging curve, can finely play charge protection effect.But lead-acid battery in use can be constantly aging, its internal resistance is increased, even can cause a part of lead-acid battery damage.Once there is these situations, charging process possibly cannot be covered ideal charging flow process smoothly.Such as, due to the damage of lead-acid battery part, even if it is full of (because lead-acid battery damage cannot reach perfect condition), cannot reach the condition of " constant voltage charge " or trickle charge state by detection lead-acid battery voltage, electric current, will be for a long time in " constant current charge " or " constant voltage charge " state, make lead-acid battery overcharge state in large electric current for a long time, cause on the contrary vicious circle, accelerate lead-acid battery and scrap.

Therefore, for the above-mentioned defect existing in currently available technology, be in fact necessary to study, so that a kind of scheme to be provided, solve the defect existing in prior art, further extend lead-acid battery useful life.

Summary of the invention

In order to overcome the defect of above-mentioned prior art, the invention provides a kind of lead-acid battery of built-in additives for overcharge protection circuit, can determine and be full of the required charging interval according to self battery open circuit voltage value, accurately control charging duration, effectively prevent from overcharging.

The problem existing for solving prior art, technical scheme of the present invention is:

A kind of lead-acid battery of built-in additives for overcharge protection circuit; comprise battery overcharge protective circuit and battery body; described battery overcharge protective circuit is connected with battery body; and be arranged on together in battery case; described shell is also provided for the charging inlet that is connected with charger and output interface for being connected with load; described charging inlet is connected with battery overcharge protective circuit, and described output interface is connected with battery body.

Preferably, described battery overcharge protective circuit comprises charging detection module, control module, battery voltage detection module, switch module, time block and memory module, wherein,

Described charging detection module is for detection of charging current and the voltage of external charger input;

Described battery voltage detection module is for detection of battery voltage value;

Described switch module is connected with battery body with charger, and its conducting or disconnection are controlled by described control module;

Described time block is for the timing battery charging interval;

Described memory module is for storage battery parameter information;

Described control module is connected with memory module with described charging detection module, battery voltage detection module, switch module, time block, the signal enabling time block sending according to described charging detection module starts timing, and according to conducting or the disconnection of the Signal-controlled switch module of time block;

The timing of described time block setting is obtained according to battery voltage value by described control module from memory module.

Preferably, described control module is single-chip microcomputer.

Preferably, described switch module is relay or semiconductor switch pipe.

Compared with prior art; beneficial effect of the present invention is as follows: built-in additives for overcharge protection circuit in lead-acid battery; can corresponding additives for overcharge protection parameter be set according to lead-acid battery parameter; can accurately determine the required charging interval according to charging input parameter; and the break-make of charging by timing controlled lead-acid battery, thereby reach the object that prevents that lead-acid battery from overcharging.

Brief description of the drawings

Fig. 1 is the theory diagram of the lead-acid battery of a kind of built-in additives for overcharge protection circuit of the embodiment of the present invention;

Fig. 2 is the theory diagram of additives for overcharge protection circuit (1) in the lead-acid battery of a kind of built-in additives for overcharge protection circuit of the embodiment of the present invention;

Fig. 3 is the control flow block diagram of the lead-acid battery of a kind of built-in additives for overcharge protection circuit of the embodiment of the present invention.

Embodiment

In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.

On the contrary, the present invention contain any defined by claim in marrow of the present invention and scope, make substitute, amendment, equivalent method and scheme.Further, for the public is had a better understanding to the present invention, in below details of the present invention being described, detailed some specific detail sections of having described.Do not have for a person skilled in the art the description of these detail sections can understand the present invention completely yet.

Referring to Fig. 1; be depicted as the theory diagram of the lead-acid battery of the built-in additives for overcharge protection circuit of the embodiment of the present invention; comprise lead-acid battery additives for overcharge protection circuit 1 and lead-acid battery body 2; lead-acid battery additives for overcharge protection circuit 1 is connected with lead-acid battery body 2; and be arranged on together in lead-acid battery shell; shell is also provided for the charging inlet 3 that is connected with charger and output interface 4 for being connected with load; charging inlet 3 is connected with lead-acid battery additives for overcharge protection circuit 1, and output interface 4 is connected with lead-acid battery body 2.

Pre-stored lead-acid battery parameter in lead-acid battery additives for overcharge protection circuit 1, and accurately control the charging interval to battery according to lead-acid battery residual capacity.Due to built-in protective circuit in lead-acid battery, thereby more effective protection lead-acid battery postpones its useful life.

Referring to Fig. 2; be depicted as the theory diagram of embodiment of the present invention lead-acid battery additives for overcharge protection circuit 1; comprise charging detection module 101, control module 102, battery voltage detection module 103, switch module 104, time block 105 and memory module 106, wherein

Charging detection module 101 is connected with external charger, for detection of charging current and the voltage of input;

Battery voltage detection module 103 is connected with battery two ends, for detection of battery voltage value;

Switch module 104 is connected with battery body with charger, and its conducting or disconnection are controlled by control module 102;

Time block 105 is for the timing battery charging interval;

Memory module 106 is for storage battery parameter information;

Control module 102 is connected with memory module 106 with charging detection module 101, battery voltage detection module 103, switch module 104, time block 105, the signal enabling time block 105 sending according to charging detection module 101 starts timing, and according to conducting or the disconnection of the Signal-controlled switch module 104 of time block 105;

The timing of the setting of time block 105 is obtained according to lead-acid battery magnitude of voltage by control module 102 from memory module 106.

The residual capacity proportion relation of the open-circuit voltage values of lead-acid battery and lead-acid battery, at present in most of application scenarios, all to estimate lead-acid battery current electric quantity by detecting lead-acid battery open-circuit voltage values, the embodiment of the present invention is also to adopt which, detect lead-acid battery magnitude of voltage by battery voltage detection module 103, estimate the dump energy of this lead-acid battery, and then draw the charging interval required under standard charging current.Lead-acid battery parameter information is pre-stored in memory module 106, such as corresponding table of lead-acid battery total capacity, open-circuit voltage values and lead-acid battery residual capacity etc.

For the further accurate charging interval, can also go out the required charging interval in conjunction with lead-acid battery calculation of parameter according to reality charging input (voltage and current parameter); If actual charging input exceeds the parameter area that battery can bear, cannot charge to this lead-acid battery.

Under non-charged state; switch module 104 is in off-state; charging detection module 103 monitors whether there is charging input; if actual charging input exceeds the parameter area that battery can bear; such as charger output charging voltage and the situation such as lead-acid battery does not mate, cannot opening switch module 104, and then cannot this lead-acid battery be charged; thereby protection lead-acid battery, further extends lead-acid battery useful life.

Detect and charge normal after input, control module 102 is obtained charge timing time opening timing module 105, and actuating switch module 104, enters charged state simultaneously;

In charging process, judge the residing charged state of lead-acid battery by detecting lead-acid battery magnitude of voltage, this point is similar to prior art, if but timing is through with, no matter lead-acid battery is in which kind of charged state, all cut-off switch modules 104, complete charge, prevent from the situation of lead-acid battery damage, for a long time in charged state, effectively preventing that lead-acid battery from overcharging.

One preferred embodiment in, control module 102 is single-chip microcomputer.

One preferred embodiment in, switch module 104 is relay or semiconductor switch pipe.

Referring to Fig. 3, be depicted as the control flow block diagram of the lead-acid battery of the built-in additives for overcharge protection circuit of the embodiment of the present invention, lead-acid battery additives for overcharge protection circuit 1 is set in battery body 2, comprise the following steps:

(1) detect charging input; Detect from the voltage and current of charger input, corresponding to the lead-acid battery of same specifications parameter, the electric current and voltage of charger is generally all followed corresponding standard.

(2) detect lead-acid battery open-circuit voltage values, obtain the charge timing time; The residual capacity proportion relation of the open-circuit voltage values of lead-acid battery and lead-acid battery; and lead-acid battery parameter is pre-stored in lead-acid battery additives for overcharge protection circuit 1; thereby can calculate the electric weight of the required charging of lead-acid battery, can calculate the charge timing time according to standard charging parameter.

(3) timing parameters of time block is set and start time block start timing;

(4), after starting timing, actuating switch module simultaneously, starts charging;

(5) after timing finishes, stopcock module, complete charge.

These are only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.

Claims (4)

1. the lead-acid battery of a built-in additives for overcharge protection circuit, it is characterized in that, comprise battery overcharge protective circuit (1) and battery body (2), described battery overcharge protective circuit (1) is connected with battery body (2), and be arranged on together in battery case, described shell is also provided for the charging inlet (3) that is connected with charger and output interface (4) for being connected with load, described charging inlet (3) is connected with battery overcharge protective circuit (1), described output interface (4) is connected with battery body (2).
2. the lead-acid battery of built-in additives for overcharge protection circuit according to claim 1; it is characterized in that; described battery overcharge protective circuit (1) comprises charging detection module (101), control module (102), battery voltage detection module (103), switch module (104), time block (105) and memory module (106); wherein
Described charging detection module (101) is for detection of charging current and the voltage of external charger input;
Described battery voltage detection module (103) is for detection of battery voltage value;
Described switch module (104) is connected with battery body (2) with charger, and its conducting or disconnection are controlled by described control module (102);
Described time block (105) is for the timing battery charging interval;
Described memory module (106) is for storage battery parameter information;
Described control module (102) is connected with described charging detection module (101), battery voltage detection module (103), switch module (104), time block (105) and memory module (106), the signal enabling time block (105) sending according to described charging detection module (101) starts timing, and according to conducting or the disconnection of the Signal-controlled switch module (104) of time block (105);
The timing that described time block (105) arranges is obtained according to battery voltage value by described control module (102) from memory module (106).
3. the lead-acid battery of built-in additives for overcharge protection circuit according to claim 2, is characterized in that, described control module (102) is single-chip microcomputer.
4. the lead-acid battery of built-in additives for overcharge protection circuit according to claim 2, is characterized in that, described switch module (104) is relay or semiconductor switch pipe.
CN201410226421.6A 2014-05-26 2014-05-26 Lead-acid battery internally provided with overcharge protection circuit CN103972968A (en)

Priority Applications (1)

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CN201410226421.6A CN103972968A (en) 2014-05-26 2014-05-26 Lead-acid battery internally provided with overcharge protection circuit

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1777311A (en) * 2004-11-17 2006-05-24 乐金电子(中国)研究开发中心有限公司 Mobile communication terminal of displaying time that cell needs to finish charging and displaying method thereof
JP2007214052A (en) * 2006-02-10 2007-08-23 Gs Yuasa Corporation:Kk Method of charging lead-acid battery
US20090153100A1 (en) * 2007-12-14 2009-06-18 Fujitsu Limited Charging control apparatus controlling charging current and control method therefore
CN201846097U (en) * 2010-07-14 2011-05-25 陈赖容 Charging optimization manager for lead-acid storage battery
CN102361102A (en) * 2011-10-12 2012-02-22 刘先金 Automatic time-control charging method and intelligent charging device of electric bicycle
CN102916231A (en) * 2012-11-02 2013-02-06 兰州科能机电设备制造有限责任公司 Electric vehicle battery of built-in timing protection circuit
CN203840035U (en) * 2014-05-26 2014-09-17 杭州电子科技大学 Lead-acid cell internally provided with overcharge protection circuit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1777311A (en) * 2004-11-17 2006-05-24 乐金电子(中国)研究开发中心有限公司 Mobile communication terminal of displaying time that cell needs to finish charging and displaying method thereof
JP2007214052A (en) * 2006-02-10 2007-08-23 Gs Yuasa Corporation:Kk Method of charging lead-acid battery
US20090153100A1 (en) * 2007-12-14 2009-06-18 Fujitsu Limited Charging control apparatus controlling charging current and control method therefore
CN201846097U (en) * 2010-07-14 2011-05-25 陈赖容 Charging optimization manager for lead-acid storage battery
CN102361102A (en) * 2011-10-12 2012-02-22 刘先金 Automatic time-control charging method and intelligent charging device of electric bicycle
CN102916231A (en) * 2012-11-02 2013-02-06 兰州科能机电设备制造有限责任公司 Electric vehicle battery of built-in timing protection circuit
CN203840035U (en) * 2014-05-26 2014-09-17 杭州电子科技大学 Lead-acid cell internally provided with overcharge protection circuit

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Application publication date: 20140806