CN205195331U - Battery charger and mend charging circuit thereof - Google Patents
Battery charger and mend charging circuit thereof Download PDFInfo
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- CN205195331U CN205195331U CN201520884638.6U CN201520884638U CN205195331U CN 205195331 U CN205195331 U CN 205195331U CN 201520884638 U CN201520884638 U CN 201520884638U CN 205195331 U CN205195331 U CN 205195331U
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- charging circuit
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- rechargeable battery
- battery charger
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Abstract
The utility model provides a battery charger and mend charging circuit thereof. This benefit charging circuit include: one the timing module, be used for connect in being charged by rechargeable battery of battery charger output port is reckoned by time after accomplishing, a detection module for the first detection time that predetermines of every by the voltage at rechargeable battery both ends, a control module is used for voltage that detection module detected provided a first signal and is providing when being less than the default provide a second signal after the the first signal second time of predetermineeing, a controllable switch, the response the first signal switches on and responds the second signal turn -offs. This openly can make lead acid battery remain effectual operating voltage and capacity throughout, so can be better satisfy people's daily life and work demand, but also lengthened by rechargeable battery's life, simultaneously, above -mentioned battery charger's benefit charging circuit simple structure, reliable, easy to carry out.
Description
Technical field
The disclosure relates to intelligent charge technique field, is specifically related to a kind of battery charger and mends charging circuit and apply the battery charger of this benefit charging circuit.
Background technology
In recent years, electric motor car use is in daily life more and more extensive, while facilitating people's go off daily, also for low-carbon environment-friendly cause has made huge contribution.The large parts of motor in electric motor car core component, controller and car body three are theoretical and technically comparatively ripe, and the development of another two large parts batteries and battery charger can't meet the requirement of electric motor car.
For lead acid accumulator conventional at present, often in use, along with the prolongation of time, lead acid accumulator can aging (sulfuration) produce self discharge, and user habit will be connected to battery charger by rechargeable battery evening charges, automatically electrical connection is disconnected after completing charging, within second day, when going out, just disconnect physical connection, the lead acid accumulator being at this time originally full of electricity just may be in power shortage state because of self discharge, time particularly winter etc., temperature was lower, not only shorten the useful life of lead acid accumulator, and work and the life of user can be had a strong impact on.In addition, when user forgets the key pulling out electric motor car, wherein part electric elements and light fixture etc. will consume electric energy always slowly, cause lead acid accumulator to be in power shortage state.
As from the foregoing, if directly do not disconnected electrical connection from battery charger by rechargeable battery in prior art after completing charging, then power shortage state may be in because of self discharge.But, if still kept being electrically connected with battery charger by rechargeable battery after completing charging, be in floating charge state, then may overcharge being caused by rechargeable battery.
Therefore, in prior art, charging battery of electric vehicle device still has part to be modified.
Summary of the invention
Object of the present disclosure is to provide a kind of battery charger to mend charging circuit and applies the battery charger of this benefit charging circuit, for overcoming the one or more problems caused due to the restriction of correlation technique and defect at least to a certain extent.
Other characteristics of the present disclosure and advantage become obvious by by detailed description below, or the acquistion partially by practice of the present disclosure.
According to first aspect of the present disclosure, a kind of benefit charging circuit of battery charger is provided, comprises:
One timing module, for be connected to described battery charger output port by rechargeable battery charging complete after carry out timing;
One detection module, couples with the output port of described timing module and battery charger, for detecting described by the voltage at rechargeable battery two ends every the first Preset Time;
One control module, couples with described detection module and timing module, for the voltage that detects at described detection module lower than providing one first signal during preset value and provide a secondary signal after providing described first signal second Preset Time;
One gate-controlled switch, the power module of its first end and described battery charger couples, and the output port of its second end and described battery charger couples, and its control end and described control module couple; Described gate-controlled switch responds described first signal conduction and responds described secondary signal and turns off.
In a kind of exemplary embodiment of the present disclosure, described first Preset Time is more than or equal to described second Preset Time.
In a kind of exemplary embodiment of the present disclosure, described preset value is described by 95% ~ 98% of the magnitude of voltage at two ends during rechargeable battery charging complete.
In a kind of exemplary embodiment of the present disclosure, described benefit charging circuit also comprises:
One sampling module, with described control module and describedly to be coupled by rechargeable battery, described by the temperature of rechargeable battery for gathering;
The voltage that described control module detects according to described detection module and the temperature information that described sampling module samples provide described first signal.
In a kind of exemplary embodiment of the present disclosure, described timing module, detection module and control module are integrated in one.
In a kind of exemplary embodiment of the present disclosure, described gate-controlled switch is a relay switch; The control coil input of described relay switch is the control end of described gate-controlled switch.
In a kind of exemplary embodiment of the present disclosure, described first signal is the current signal that described control module exports the control coil input of described relay switch to.
In a kind of exemplary embodiment of the present disclosure, described gate-controlled switch is a transistor switch; The grid of described transistor switch is the control end of described gate-controlled switch.
In a kind of exemplary embodiment of the present disclosure, described control module also comprises one drive circuit, and described first signal is the pulse voltage signal that described drive circuit exports the grid of described transistor switch to.
According to second aspect of the present disclosure, provide a kind of battery charger, comprise above-mentioned any one and mend charging circuit
By the battery charger in disclosure example embodiment and benefit charging circuit thereof, battery charger connect completed charging by rechargeable battery after, periodically can detect by the voltage at rechargeable battery two ends, thus can judge whether be in power shortage state because of the slow power consumption of self discharge or electric motor car internal components by rechargeable battery accordingly; And, when judging to be in power shortage state by rechargeable battery, conducting gate-controlled switch supplements the slow power consumption by the self-discharge in rechargeable battery pond or electric motor car internal components in time, make lead acid accumulator remain effective operating voltage and capacity, and then daily life and work requirements can be better met; And, owing to can avoid being overcharged or charge less by rechargeable battery to a certain extent, also extend by the useful life of rechargeable battery; Meanwhile, the benefit charging circuit configuration of above-mentioned battery charger is simple, reliable, easy to implement.
Accompanying drawing explanation
Accompanying drawing to be herein merged in specification and to form the part of this specification, shows embodiment according to the invention, and is used from specification one and explains principle of the present invention.Apparently, the accompanying drawing in the following describes is only embodiments more of the present disclosure, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of battery charger in disclosure example embodiment.
Fig. 2 is the structural representation of another kind of battery charger in disclosure example embodiment.
Fig. 3 is the structural representation of another battery charger in disclosure example embodiment.
Embodiment
More fully example embodiment is described referring now to accompanying drawing.But example embodiment can be implemented in a variety of forms, and should not be understood to be limited to execution mode set forth herein; On the contrary, these execution modes are provided to make the disclosure comprehensively with complete, and the design of example embodiment will be conveyed to those skilled in the art all sidedly.In addition, described feature, structure or characteristic can be combined in one or more embodiment in any suitable manner.In the following description, provide many details thus provide fully understanding embodiment of the present disclosure.But, one of skill in the art will appreciate that and can put into practice technical scheme of the present disclosure and not have in described specific detail one or more, or other method, module, structure etc. can be adopted.In other cases, known features, module or operation is not shown specifically or describes to avoid fuzzy each side of the present disclosure.
Provide a kind of battery charger in this example embodiment to mend charging circuit and apply the battery charger of this benefit charging circuit.Battery charger in this example embodiment can be the battery charger of electric motor car, but in other exemplary embodiments of the present disclosure, this battery charger may be the charger for other charge in batteries.Battery in this example embodiment can be lead-acid batteries, but in other exemplary embodiments of the present disclosure, this battery also may be the battery of the other types such as lithium battery, Ni-MH battery.In this example embodiment, all particular determination is not done to this.
Shown in Fig. 3, described battery charger at least comprises power module and output port, in addition, can also comprise other circuit modules such as oscillating circuit, voltage protection circuit and light indicating circuit.Power module is mainly used in, by rectification circuit, the electric main of input is rectified into direct current, then the direct voltage that direct current converts to is provided to the output port of battery charger after filtering.The supplementary electric main circuit of battery charger will comprise timing module, detection module, control module and gate-controlled switch.Wherein, timing module be mainly used in be connected to described battery charger output port by rechargeable battery charging complete after carry out timing.The output port of detection module and described timing module and battery charger couples, and is mainly used in every the first Preset Time, namely periodically detects described by the voltage at rechargeable battery two ends.Control module and described detection module and timing module couple, and the voltage being mainly used in detecting at described detection module is lower than providing one first signal during preset value and provide a secondary signal after providing described first signal second Preset Time; So, if in the incipient stage of a sense cycle, detection module detects by the voltage at rechargeable battery two ends lower than preset value (illustrate described may be in power shortage state by rechargeable battery), then can continue to provide described first signal in ensuing second Preset Time, further, after described first signal second Preset Time is provided, described secondary signal is provided; If in the incipient stage of a sense cycle, detection module detects and is not less than preset value (illustrating described by the full electricity of rechargeable battery or close to full electricity) by the voltage at rechargeable battery two ends, then in this sense cycle whole, control module all provides described secondary signal.Gate-controlled switch comprises first end, the second end and control end, the first end of gate-controlled switch and the power module of described battery charger couple, second end of gate-controlled switch and the output port of described battery charger couple, and gate-controlled switch control end and described control module couple; Described gate-controlled switch responds described first signal conduction and responds described secondary signal and turns off.
By the benefit charging circuit of above-mentioned battery charger, battery charger connect completed charging by rechargeable battery after, periodically can detect by the voltage at rechargeable battery two ends, thus can judge whether be in power shortage state because of the slow power consumption of self discharge or electric motor car internal components by rechargeable battery accordingly; And, when judging to be in power shortage state by rechargeable battery, conducting gate-controlled switch supplements the slow power consumption by the self-discharge in rechargeable battery pond or electric motor car internal components in time, make lead acid accumulator remain effective operating voltage and capacity, and then daily life and work requirements can be better met; And, owing to can avoid being overcharged or charge less by rechargeable battery to a certain extent, also extend by the useful life of rechargeable battery; Meanwhile, the benefit charging circuit configuration of above-mentioned battery charger is simple, reliable, easy to implement.
In this example embodiment, described control module can be such as a single-chip microcomputer, and described timing module can be such as a crystal oscillator resonator, and described detection module can be such as an AD voltage sampling circuit; But those skilled in the art it is easily understood that, control module also can be MCU (MicroControllerUnit, micro-control unit), PLC (ProgrammableLogicController, programmable logic controller (PLC)) etc. other assemblies, timing module also can be other assemblies such as LC resonant circuit, the circuit that detection module also can be made up of divider resistance, voltage follower and analog to digital converter.Or, shown in figure 2 and Fig. 3, described control module, detection module and timing module also can be integrated in one, such as, described control module, detection module and timing module are all integrated in a single-chip microcomputer, are that described single-chip microcomputer is powered by described power module.Namely, in this example embodiment, the specific implementation hardware for described control module, detection module and timing module does not do particular determination.
In this example embodiment, described control module is also for carrying out trickle charge (after battery electric quantity is full of at described battery charger, charging current drops to lower than floating charge switching current, charger charging voltage is down to float charge voltage, now charging proceeds to the trickle stage) provide described secondary signal after Preset Time, turn off gate-controlled switch, thus avoid by rechargeable battery overcharge, cause by the even bulge etc. of rechargeable battery heating, water loss in electrolyte; When turning off gate-controlled switch, be namely above-mentioned by the moment of rechargeable battery charging complete.
In this example embodiment, described first Preset Time can be 1 hour, 1.5 hours, 2 hours etc., and described first Preset Time is more than or equal to described second Preset Time, and such as the second Preset Time can be 20 minutes, 30 minutes etc.But those skilled in the art are it is easily understood that in other exemplary embodiments of the present disclosure, and described first Preset Time also may be less than described second Preset Time, or described second Preset Time is the duration etc. changed depending on other parameters.Described preset value can be described by 95% ~ 98% of the magnitude of voltage at two ends during rechargeable battery charging complete, such as, described is 56V by the magnitude of voltage at two ends during rechargeable battery charging complete, described preset value can be described by 96%, i.e. 53.8V of the magnitude of voltage at two ends during rechargeable battery charging complete.
Shown in figure 2, above-mentioned gate-controlled switch can be a relay switch; The control coil input of described relay switch is the control end of described gate-controlled switch; Described first signal is the current signal that described control module exports the control coil input of described relay switch to.If in the incipient stage of a sense cycle, detection module detects by the voltage at rechargeable battery two ends lower than preset value (illustrate described may be in power shortage state by rechargeable battery), then can continue to provide described first signal (such as controls electric current) in ensuing second Preset Time, relay switch is in conducting state, and battery charger starts to charge to by rechargeable battery.Further, after described first signal second Preset Time is provided, described secondary signal (namely without control electric current) is provided, output open circuit.If in the incipient stage of a sense cycle, detection module detects and is not less than preset value (illustrating described by the full electricity of rechargeable battery or close to full electricity) by the voltage at rechargeable battery two ends, then in this sense cycle whole, control module all provides described secondary signal (namely without control electric current), output open circuit.
Shown in figure 3, above-mentioned gate-controlled switch can also be a transistor switch; The grid of described transistor switch is the control end of described gate-controlled switch; Described control module also comprises one drive circuit, and described first signal is the pulse voltage signal that described drive circuit exports the grid of described transistor switch to; Described drive circuit can be a pwm signal circuit for generating.If in the incipient stage of a sense cycle, detection module detects by the voltage at rechargeable battery two ends lower than preset value (illustrate described may be in power shortage state by rechargeable battery), then can continue to provide described first signal (such as a high level pulse voltage) to described transistor switch grid in ensuing second Preset Time, make transistor switch conducting, battery charger starts to charge to by rechargeable battery.Further, after providing described first signal second Preset Time, provide described secondary signal (such as low level pulse voltage), transistor switch is in cut-off state, output open circuit.If in the incipient stage of a sense cycle, detection module detects and is not less than preset value (illustrating described by the full electricity of rechargeable battery or close to full electricity) by the voltage at rechargeable battery two ends, then in this sense cycle whole, control module all provides described secondary signal (such as low level pulse voltage), transistor switch is in cut-off state, output open circuit.
Certainly, it is easily understood that, those skilled in the art can also select other gate-controlled switches such as thyristor (SCR), MOSFET (MOSFET), bipolar transistor as required, are not limited to the mode exemplified in this example embodiment.
In addition, described benefit charging circuit can also comprise a sampling module.Described sampling module and described control module and describedly to be coupled by rechargeable battery, described by the temperature of rechargeable battery for gathering.The voltage that described control module detects according to described detection module and the temperature information that described sampling module samples provide described first signal.Such as, the voltage detected according to described detection module and Current Temperatures information, calculate maximum charging voltage corresponding under Current Temperatures, and by the duty ratio of described first signal controlling said PWM signal, adjust output voltage, carry out temperature-compensating.
For actual charging process, the battery charger in this example embodiment is mended charging circuit and in charging process after trickle charge certain hour (such as 3 hours), can be controlled gate-controlled switch turn off charge circuit by control module.If battery charger does not have and disconnected physical connection by rechargeable battery, then timing module starts timing, detects battery both end voltage every the first Preset Time (such as 1 hour).Such as the lead-acid batteries of 48V, after being full of electricity, about 53.5V-54V can be fallen back to by rechargeable battery two sections of voltages.53.5V is less than by rechargeable battery both end voltage if detected, control module controls gate-controlled switch conducting and charges, such as making output voltage to 56V and adjusting output current is 0.5A, supplemented electric second Preset Time (such as 20 minutes) by rechargeable battery, the second Preset Time (such as 20 minutes) controls gate-controlled switch afterwards and turns off output loop; Be greater than 53.5V if detected by charged battery voltage two ends, control module exports secondary signal, and whether gate-controlled switch is failure to actuate, detect again and declined by rechargeable battery both end voltage after detection module first Preset Time (such as 1 hour).At battery charger with before not disconnected by rechargeable battery, circulate above-mentioned action.
The correlative detail of the battery charger provided in this example embodiment has been mended in charging circuit at battery charger and has been described in detail, and is not therefore repeating herein.
In sum, by the battery charger in this example embodiment and benefit charging circuit thereof, battery charger connect completed charging by rechargeable battery after, periodically can detect by the voltage at rechargeable battery two ends, thus can judge whether be in power shortage state because of the slow power consumption of self discharge or electric motor car internal components by rechargeable battery accordingly; And, when judging to be in power shortage state by rechargeable battery, conducting gate-controlled switch supplements the slow power consumption by the self-discharge in rechargeable battery pond or electric motor car internal components in time, make lead acid accumulator remain effective operating voltage and capacity, and then daily life and work requirements can be better met; And, owing to can avoid being overcharged or charge less by rechargeable battery to a certain extent, also extend by the useful life of rechargeable battery; Meanwhile, the benefit charging circuit configuration of above-mentioned battery charger is simple, reliable, easy to implement.
The disclosure is described by above-mentioned related embodiment, but above-described embodiment is only enforcement example of the present disclosure.Must it is noted that published embodiment limit the scope of the present disclosure.On the contrary, not departing from the change and retouching done in spirit and scope of the present disclosure, scope of patent protection of the present disclosure is all belonged to.
Claims (10)
1. a benefit charging circuit for battery charger, is characterized in that, comprising:
One timing module, for be connected to described battery charger output port by rechargeable battery charging complete after carry out timing;
One detection module, couples with the output port of described timing module and battery charger, for detecting described by the voltage at rechargeable battery two ends every the first Preset Time;
One control module, couples with described detection module and timing module, for the voltage that detects at described detection module lower than providing one first signal during preset value and provide a secondary signal after providing described first signal second Preset Time;
One gate-controlled switch, the power module of its first end and described battery charger couples, and the output port of its second end and described battery charger couples, and its control end and described control module couple; Described gate-controlled switch responds described first signal conduction and responds described secondary signal and turns off.
2. benefit charging circuit according to claim 1, is characterized in that, described first Preset Time is more than or equal to described second Preset Time.
3. benefit charging circuit according to claim 1, is characterized in that, described preset value is described by 95% ~ 98% of the magnitude of voltage at two ends during rechargeable battery charging complete.
4. benefit charging circuit according to claim 1, is characterized in that, described benefit charging circuit also comprises:
One sampling module, with described control module and describedly to be coupled by rechargeable battery, described by the temperature of rechargeable battery for gathering;
The voltage that described control module detects according to described detection module and the temperature information that described sampling module samples provide described first signal.
5. benefit charging circuit according to claim 1, is characterized in that, described timing module, detection module and control module are integrated in one.
6. the benefit charging circuit according to claim 1-5 any one, is characterized in that, described gate-controlled switch is a relay switch; The control coil input of described relay switch is the control end of described gate-controlled switch.
7. benefit charging circuit according to claim 6, is characterized in that, described first signal is the current signal that described control module exports the control coil input of described relay switch to.
8. the benefit charging circuit according to claim 1-5 any one, is characterized in that, described gate-controlled switch is a transistor switch; The grid of described transistor switch is the control end of described gate-controlled switch.
9. benefit charging circuit according to claim 8, is characterized in that, described control module also comprises one drive circuit, and described first signal is the pulse voltage signal that described drive circuit exports the grid of described transistor switch to.
10. a battery charger, is characterized in that, comprises the benefit charging circuit according to claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520884638.6U CN205195331U (en) | 2015-11-06 | 2015-11-06 | Battery charger and mend charging circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520884638.6U CN205195331U (en) | 2015-11-06 | 2015-11-06 | Battery charger and mend charging circuit thereof |
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| CN205195331U true CN205195331U (en) | 2016-04-27 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018068270A1 (en) * | 2016-10-13 | 2018-04-19 | 深圳市道通智能航空技术有限公司 | Charging circuit and device |
| US10545392B2 (en) | 2016-10-09 | 2020-01-28 | Autel Robotics Co., Ltd. | Gimbal and unmanned aerial vehicle and control method thereof |
| WO2020020378A1 (en) * | 2018-07-27 | 2020-01-30 | 苏州宝时得电动工具有限公司 | Charger |
| CN114290917A (en) * | 2022-01-05 | 2022-04-08 | 重庆金康动力新能源有限公司 | Vehicle-mounted charger measurement and control circuit and method |
-
2015
- 2015-11-06 CN CN201520884638.6U patent/CN205195331U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10545392B2 (en) | 2016-10-09 | 2020-01-28 | Autel Robotics Co., Ltd. | Gimbal and unmanned aerial vehicle and control method thereof |
| WO2018068270A1 (en) * | 2016-10-13 | 2018-04-19 | 深圳市道通智能航空技术有限公司 | Charging circuit and device |
| CN109478789A (en) * | 2016-10-13 | 2019-03-15 | 深圳市道通智能航空技术有限公司 | A kind of charging circuit and device |
| WO2020020378A1 (en) * | 2018-07-27 | 2020-01-30 | 苏州宝时得电动工具有限公司 | Charger |
| CN114290917A (en) * | 2022-01-05 | 2022-04-08 | 重庆金康动力新能源有限公司 | Vehicle-mounted charger measurement and control circuit and method |
| CN114290917B (en) * | 2022-01-05 | 2024-05-10 | 重庆金康动力新能源有限公司 | Measurement and control circuit and method for vehicle-mounted charger |
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Granted publication date: 20160427 Termination date: 20171106 |